In a method for producing a spray nozzle device, in particular for spraying a casting strand during casting of metallic products, the spray nozzle device includes a basic body with an air inlet, a water inlet and a nozzle body with a mixing chamber for producing an air/water mixture which emerges through at least one nozzle outlet. The air inlet is formed by at least one air inlet nozzle, with a nozzle tip projecting into the mixing chamber, and has at least one air outlet hole. The water inlet opens into the mixing chamber close to the nozzle tip of the air inlet through at least one water outlet hole oriented transversely to a longitudinal axis of the mixing chamber. At least one part region of the spray nozzle device is produced by a generative production process, preferably operating as a 3D printing process.
A radiant element for heating an oven is disclosed. The radiant element comprises a first end; a second free end; a radiant structure between said first end and second end; a conduit for an energy feed inside said radiant structure; a first attachment leg for mechanically coupling the radiant structure to a support, a first coupling means comprising a first portion arranged to be stationary with respect to said support, and a second portion stationary relative to said first leg, the first portion and the second portion being mechanically coupled via a first interface so as to allow a relative displacement between the first portion and second portion.
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
A device for the contactless determination of at least one property of a metal product during the metallurgical production of the metal product comprises a housing and at least one measuring device comprising a transmitting unit and a receiving unit. An electromagnetic field is generated by the transmitting unit and directed onto the metal product, thereby inducing a physical interaction in the material of the metal product, and a remaining and/or resulting part of this physical interaction is subsequently received by the receiving unit. At least one component of the measuring device comprising the transmitting unit and/or the receiving unit can be moved relative to the housing or the metal product moving therein, in order to thereby set or selectively change a predetermined distance to the metal product for the transmitting unit and/or the receiving unit.
G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
C21D 11/00 - Process control or regulation for heat treatments
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N 33/204 - Structure thereof, e.g. crystal structure
4.
Kiln comprising a control unit associated with the thermal inertia properties of constitutive elements
A furnace for the heat treatment of a metal product includes constitutive elements, each having a thermal inertia property determined from physical parameters. The constitutive elements include walls delimiting at least partially the furnace, a heating unit for heating the metal product, and a rapid heating element for heating the metal product. The furnace also includes a control circuit for controlling the heating unit and/or the rapid heating element, based on one or more thermal inertia properties of one or more constitutive elements of the furnace, and at least based on a ground of a constitutive element of said furnace.
C21D 9/60 - Continuous furnaces for strip or wire with induction heating
C21D 11/00 - Process control or regulation for heat treatments
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/28 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
F27B 9/40 - Arrangements of controlling or monitoring devices
The invention relates to a device (10) and a method for the contactless determination of at least one property of a metal product (1) during metallurgical production of the metal product (1). The device (1) comprises a housing (11) and at least one measuring device (16) consisting of a transmitting unit (17) and a receiving unit (18). An electromagnetic field is generated by the transmitting unit (17) and directed onto the metal product (1) and, as a result, a physical interaction is induced in the material of the metal product (1), wherein subsequently a remaining and/or resulting part of this physical interaction is received by the receiving unit (18). At least one component of the measuring device (16) consisting of the transmitting unit (17) and/or the receiving unit (18) can be moved in relation to the housing (11), or the metal product (1) moved therein, in order thereby to set or specifically change for the transmitting unit (17) and/or the receiving unit (18) a predetermined distance from the metal product (1).
G01N 33/204 - Structure thereof, e.g. crystal structure
G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
6.
METHOD FOR STRAND CASTING, ESPECIALLY IN A VERTICAL CASTING PLANT FOR CASTING STEEL
In a process for continuous or semicontinuous strand casting, especially in a vertical casting plant for casting steel, the strand (5), at the end of the casting process, is withdrawn downward in a cooled mould (1) after the melt supply has been stopped. The strand (5) is stopped before the fill level (15') reaches the lower end of the mould (1). The lower end (2') of a pipe element (2) is immersed into the metal melt in the mould (1) in such a way that the fill level (15') of the metal melt rises nearly as far as the upper end of the mould, as is the case during the casting process. This simple procedure enables better output rates owing to the shorter upper end of the strand that has to be cut off.
The present disclosure relates to a device for indirect heating by radiation in the form of a radiant housing having two front walls and two side walls and comprising at least one heat source, the radiant housing having front walls joining one another such that the housing has a lenticular shape in cross-section.
F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
F27D 99/00 - Subject matter not provided for in other groups of this subclass
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F23M 9/06 - Baffles or deflectors for air or combustion productsFlame shields in fire-boxes
Kiln (1) for thermal treatment of a metal product (5) by continuous rolling and comprising constitutive elements each having a thermal inertia property determined from physical parameters, said constitutive elements comprising: - walls (8) at least partially delimiting said kiln (1); - a heating unit (2) for heating a metal product (5); - a rapid heating element (2a) for heating a metal product (5), said rapid heating element (2a) being separate from said heating unit (2); said kiln (1) also comprising a control unit (6) for controlling said heating unit (2) and/or the rapid heating element (2a) based on one or more thermal inertia properties of one or more constitutive elements of said kiln (1), and at least based on a mass of one constitutive element of said kiln (1).
C21D 11/00 - Process control or regulation for heat treatments
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/40 - Arrangements of controlling or monitoring devices
The present disclosure relates to a device for indirect heating by radiation in the form of a radiant housing having two front walls and two side walls and comprising at least one heat source, said radiant housing having front walls joining one another such that the housing has a lenticular shape in cross-section.
F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
The present invention relates to a plant (10) for rolling a seamless tube. The plant comprises a rotary piercer (20) which is designed to pierce a billet (11) pressed against a plug (22) mounted on a rod so as to obtain a pierced blank (12). The rod is connected to a thrust block (26) designed to oppose the axial thrust which is produced on the rod during piercing. The plant also comprises a longitudinal mill (30) which is designed to roll the pierced blank (12) on a mandrel (32) so as to obtain a semi-finished tube (13). The mandrel is connected to a retaining block (34) designed to impart to the mandrel a predetermined speed during rolling. In the plant according to the invention the thrust block (26) and the retaining block (34) are formed by a single thrust/retaining block (36). The invention also relates to a method for rolling a seamless tube.
B21B 17/04 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel in a continuous process
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
B21B 25/02 - Guides, supports, or abutments for mandrels, e.g. carriagesAdjusting devices for mandrels
B21B 23/00 - Tube-rolling not restricted to methods provided for in only one of groups , e.g. combined processes
The present invention relates to a compact plant (10) for rolling a seamless tube. The plant comprises a rotary piercer (20) which defines a rolling axis XPR and is designed to pierce a billet (11) pressed against a plug (22) mounted on a rod so as to obtain a pierced blank (12). The rod is connected to a thrust block (26) designed to oppose the axial thrust during piercing. The plant also comprises a longitudinal mill (30) which defines a rolling axis XLL and is designed to roll the pierced blank (12) on a mandrel (32) so as to obtain a semi-finished tube (13). The mandrel is connected to a retaining block (34) designed to impart to the mandrel a predetermined speed during rolling. In the plant (10) according to the invention the rolling axes XPR and XLL coincide. The invention also relates to a method for rolling a seamless tube.
B21B 17/04 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel in a continuous process
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
A forging press for rotationally asymmetrical parts by warm or hot forming has a stationary press table, a vertically shiftable press ram above the press table, vertically delimiting with the press table a working space, and vertically displaceable between from an upper open position into a lower closed position. An upper part is carried by the ram in the space, and an upper die in the space is in turn carried on the upper part. A lower part sits on the table in the space and below the upper part and carries a lower die in the space and fittable with the upper die in the closed position. A first closing apparatus outside the space bears vertically on one of the dies, and a second closing apparatus outside the space bears vertically via the first closing apparatus on the one die.
A toothing, in particular of a drive spindle for driving a roll in rolling mills or continuous casting plants, which has several teeth and meshes with a second toothing in the manner of a spline, wherein a flank line of the teeth has a curvature, and a deflection angle is formed between the rotational axis of the second toothing and the rotational axis of the drive spindle toothing, and wherein the teeth of drive spindle toothing have a twist in form of profile angle deviation over the tooth width in the flank direction.
B21B 35/14 - Couplings, driving spindles, or spindle carriers specially adapted for or specially arranged in metal-rolling mills
F16D 3/18 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts having slidably-interengaging teeth
F16D 11/00 - Clutches in which the members have interengaging parts
14.
Extruder and tube extruder or metal extrusion press
A tube or metal extrusion press has a stationary press frame formed by a main housing, a counter housing, a billet support carrying a billet holder, and a ram cross-member movable in the press frame between the housings. A piston-cylinder unit has a cylinder on the main housing, a piston in the cylinder, and a ram stem extending between a front end of the piston and the ram cross-member. An equalizing reservoir supplies hydraulic fluid to the piston, and a transfer passage extends between the reservoir and the cylinder rearward of the piston. A fill valve has a displacement sleeve on a rod and carries a ring piston and a fill valve body movable centrally of the cylinder in the transfer passage between an open position in which the passage has a large annular flow cross-section and a closed position in which the valve body blocks the passage.
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
B21B 17/04 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel in a continuous process
B21B 37/16 - Control of thickness, width, diameter or other transverse dimensions
16.
Spray nozzle device, in particular for spraying a cast strand
Spray nozzle device for spraying a cast strand or similar metallurgical products with a misty air/water mixture for uniformly cooling the cast strand. The air/water mixture is produced in a mixing chamber which acts as a diffusor and includes an air inlet, a water inlet, and a nozzle outlet approximately in alignment with the air inlet. The air inlet is arranged in an air inlet nozzle, the tip of which protrudes into an upper region of the mixing chamber and preferably has air outlet holes oriented perpendicular to a longitudinal axis of the mixing chamber. Water enters near the tip through at least one water outlet hole oriented perpendicular to the longitudinal axis and placed such that the water jet exiting the water outlet hole flows past the air outlet holes. The air flow or air pressure and the water flow or water pressure do not influence each other.
The invention relates to an ingot mould (2) for continuous casting of steel and similar materials, having a plurality of actuators (5a to 5d), which are arranged distributed around the circumference, generate vibrations directed transversely to the longitudinal axis of the ingot mould, and are synchronised to each other in terms of phase such that the vibrations move along the inner wall of the ingot mould (2) in a wave-like manner from top to bottom. The transversely directed vibrations minimise the friction between the cast strand and the ingot mould and in addition produce a downwardly directed displacement force on the shell walls of the strand. Transport of the strand within the ingot mould (2) is activated thereby, and the casting process is thus considerably supported and consequently improved.
B06B 3/00 - Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
b) acting from the outside on the solid billet or tubular pre-product and a mandrel (4) carrying a piercing head (3) and engaging from the inside in the tube or tubular pre-product, wherein immediately after the solid billet has been completely pierced by the piercing head a fluidized deoxidation agent and/or an inert gas is supplied to the end of the tube or tubular pre-product facing the roll and is guided through the tube or tubular pre-product into the interior of the tube or tubular pre-product when the mandrel is withdrawn. The invention further relates to a rolling mill for performing the method according to the invention, comprising at least one roll acting from the outside onto the solid billet or tubular pre-product and a mandrel carrying a piercing head and engaging from the inside in the tube or tubular pre-product, wherein a device is provided for feeding and introducing a fluidized deoxidation agent and/or an inert gas to the end of the tube or tubular pre-product facing the at least one roll.
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B 45/04 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling
B21B 25/00 - Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group Accessories or auxiliary means therefor
B21B 23/00 - Tube-rolling not restricted to methods provided for in only one of groups , e.g. combined processes
The invention relates to a machine for machining the ends of pipes which, for control purposes, is assigned at least one computer unit and in the case of which the tools (13) are arranged displaceably such that they can engage radially in relation to the pipe in a tool head (11) which is driven by a motor (4) via a main spindle (10) guided through a headstock (6), the tool head rotating coaxially about the fixedly clamped pipe end, wherein the tools are arranged in tool holders in the form of slides (14A, 14B; 15A, 15B; 16A, 16B) and adjacent slides together mesh with a toothed wheel which is formed with weight compensation. According to the invention, the tool head (11) is formed with integrated advance motors (17) assigned to the slides (14A, 14B; 15A, 15B; 16A, 16B), and each slide is assigned a measuring device (24).
B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
B23B 3/26 - Turning-machines or devices with rotary tool heads the tools of which perform a radial movementRotary tool heads thereof
B23G 1/52 - Equipment or accessories specially designed for machines or devices for thread cutting for operating on pipes or tubes
B23B 29/00 - Holders for non-rotary cutting toolsBoring bars or boring headsAccessories for tool holders
21.
Method and device for optically measuring the interior of a pipe
The invention relates to a method and a device for optically measuring the interior of a seamless pipe which is manufactured by rolling or of a pipe which is welded with a longitudinal seam and is manufactured from sheet-metal plates shaped to form half-shells or from a shaped sheet-metal plate or from a metal strip which is unwound from a coil, comprising a sensor means (9) which emits a laser beam (10) in the interior of the pipe (3). In such a method and device, an internal measurement of seamless pipes or pipes which are welded with a longitudinal seam is to be provided with which it is easily possible to determine and model precisely the ovalness and straightness of the pipe (3) in a station. For this purpose there is provision that the sensor means (9) is moved horizontally through the pipe (3), wherein the internal contour (15) of the pipe (3) is measured in that a laser tracker (12) which is positioned at the end of the travel path follows, with its laser beam (13), the respective position of the sensor means (9) in the space of the pipe (3) and senses deviations of the sensor means (9) from straightness.
G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01S 17/88 - Lidar systems, specially adapted for specific applications
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01S 17/66 - Tracking systems using electromagnetic waves other than radio waves
22.
Method for producing metal extrusion press products, and extrusion and tube press
The invention relates to extrusion and pipe presses (1), comprising a press frame consisting of a cylindrical spar (2) and a counter spar (4) connected thereto, in which a mobile billet container holder (7) supporting a billet container (8), which puts a billet (18) to be pressed, which was introduced by a loading device, into a press position in front of the counter spar (4) with the associated tool (38), and a mobile punch crosshead (6) are provided. In the cylindrical spar (2), a main cylinder, or press cylinder, is arranged, which in the cylinder housing (9) thereof receives a press piston (11), which at the front end thereof that is supported by the punch crosshead (6) is connected to a press punch (19). A compensation tank (15), which delivers hydraulic oil to the press piston (11) by way of a slider plate (28), is assigned to a main cylinder housing (9) connected to a tank line. With an extrusion press such as this, the considerable hydraulic expenditure, and in particular the non-productive time, are to be substantially reduced, while making the structural design more compact and simple at the same time. To accomplish this, the advancing and feed motions of the billet container holder (7) and punch crosshead (6) with press piston (11) are carried out by electromotive force, and both the precompression of the billet (18) loaded into the billet container (8) and the subsequent compression of the billet (18) are done by hydraulic loading of the press piston (11). Electric motors (12, 13) are assigned to the punch crosshead (6) and the billet container holder (7) as adjustment drives. A large-scale filling valve (20) is integrated in the cylinder housing (9) of the main cylinder for loading the press piston (11).
The invention relates to a four-die press tool (1), comprising a lower die assembly (4) and an upper die assembly (6) displaceable relative thereto, comprising four rams (10, 11, 12, 13) spaced apart and supported on the lower die assembly (4) or the upper die assembly (6) and carrying forging dies (29), and a ring (20) on which are mounted the four rams (10, 11, 12, 13) concentrically around the central press axis (28) of the four-die press tool (1) in such a way that they can be displaced relative to the central press axis (28) whenever the upper die assembly (6) is moved relative to the lower die assembly (4), wherein protecting means (35) are mounted on the ring (20) to secure a workpiece in a centered position on a central predetermined position of the workpiece relative to the central press axis (28) independently of a workpiece manipulator.
The invention relates to a hot work tool, especially a rolling rod consisting of a heat-resistant material, for producing seamless pipes. The aim of the invention is to provide a rolling rod which has a longer service life and is economical to produce. For this purpose, the rolling rod consists of individual core rod segments stringed together, which are connected to each other to form a total length of the rolling rod.
B21B 25/00 - Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group Accessories or auxiliary means therefor
25.
Chuck for apparatus for machining a tubular rotating workpiece
The invention relates to a casting/rolling installation for producing hot-rolled strip. In order to save investment costs for the roll changing device in a corresponding installation with two parallel casting lines, without a roll change taking place in the process in a less operationally reliable and more complicated manner, it is proposed according to the invention to configure the roll changing device in the form of a rotary table and to arrange the latter in the intermediate space between the two casting lines.
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B21B 31/10 - Interchanging rolls, roll mountings, or stand frames by horizontally displacing
27.
INSTALLATION PIECE FOR SUPPORTING A ROLLER IN A ROLLER STAND
The invention relates to an installation piece for supporting a roller in a roller stand of a roller frame. The installation piece comprises a main bore for receiving a journal of the roller, an inlet (120) for a lubricant, an outlet for the lubricant, and a pump device (130) for pumping the lubricant leaving the installation piece through the outlet. The pump device has a housing (132), an inlet channel (134), and an outlet channel (136), said inlet channel communicating with the inlet and said outlet channel communicating with the outlet for the flow of the lubricant. The pump device is driven by the flow of the lubricant in the inlet. The invention describes a pump device for an installation piece as an alternative to the prior art. The housing of the pump device according to the invention is equipped with a screw pump (137) and a turbine (139), which is driven by the pressurized inflowing lubricant, in the inlet channel for driving the screw pump.
The invention relates to a device (1) and a method for laterally guiding a slab (2) on a transport track (3), comprising a first guide rule (4) and a second guide rule (5). The guide rules (4, 5) are arranged opposite each other on both sides of the transport track (3) and are each connected to at least one actuating drive (6) so as to move in a direction of a width of the transport track (3). The actuating drive can be actuated perpendicularly to the transport direction (7) of the slab (2), wherein the respective longitudinal axis (4L, 5L) of the first guide rule (4) and/or the second guide rule (5) can be positioned at a specified angle (α) relative to the transport direction (7) of the slab (2). The first and/or the second guide rule (4, 5) has at least one contact roller (8) which can be brought into contact with a lateral edge of the slab (2) in order to guide and/or compress the slab (2).
The invention relates to a shears (1), in particular cross-cutting shears, for cutting flat material, comprising a upper blade support (2) and a lower blade support (3), at least the upper blade support (2) or the lower blade support (3) being reciprocatingly displaceably guided and being displaceable by means of at least one adjustment device (4, 5) relative to the other respective blade support (3, 2), the displaceable blade support (2, 3) being guided by means of the adjustment device (4, 5) and the adjustment device (4, 5) being designed such that it absorbs all the cutting forces and transversal forces.
The invention relates to an exhaust gas system comprising an exhaust gas channel for receiving exhaust gas from an exhaust gas generator at the exhaust gas channel inlet and for discharging the exhaust gas at the exhaust gas channel outlet, comprising a valve in the exhaust gas channel, comprising a suction fan arranged in the exhaust gas channel downstream of the valve for conducting the exhaust gas within the exhaust gas channel in the direction of the outlet, and comprising a regulating device. The aim of the invention is to save on energy and costs. This is achieved by an alternative regulating process for the exhaust gas system, wherein the degree of opening of the valve is adjusted to a specified target degree of opening by varying the rotational speed of the suction fan in a suitable manner.
The invention relates to a method for winding a metal strip (1) onto a reel with a winding mandrel (2), to which the metal strip (1) is routed through a pair consisting of a first and a second driver roller (5, 6), at least one of which is driven. The method is characterised in that a difference between the strip speed (vB) of the metal strip (1) and the speed (v5, v6) of the driver rollers is adjusted on the basis of measuring, from measurable process variables, the strip speed and the speed (v5, v6) of at least one of the driver rollers (5, 6).
B21C 47/00 - Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
B21C 47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
32.
METHOD AND DEVICE FOR PREDICTING, CONTROLLING AND/OR REGULATING STEELWORKS PROCESSES
The present invention relates to a method for predicting, controlling and/or regulating steelworks processes, comprising the steps of monitoring at least two input variables related to a target variable, determining the relationship between the at least two input variables and at least one target variable by means of regression analysis or classification methods, and using the determined target variable for predicting, controlling and/or regulating the steelworks process.
The present invention relates to a device (3) for cooling rolled stock (2), preferably for cooling during cold rolling, comprising a nozzle (32) for applying a cooling medium (34) to the rolled stock (2), wherein a cooling chamber (4) that is in fluid communication with the nozzle (32) and extends substantially parallel to the strip running plane (10) is provided for applying the cooling medium (34) to the rolled stock (2).
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
The invention relates to a method for operating a rolling mill (1), comprising the steps of recording at least one operating parameter as a measured actual value and identifying at least one mass segment or volume segment of a rolling material passing through using measured operating parameters and/or other operating parameters by means of integration, wherein at a specified measuring point (MO, M1, M2,..., Mn), at least one of the operating parameters comes from the group of strip thickness, strip width, strip speed, strip density and strip cross-section, and is factored into the identification process as an unmeasured target value.
The invention relates to a method for producing a tube (2) or tubular pre-product from a solid billet in a rolling mill, comprising at least one roll (5a, 5b) acting from the outside on the solid billet or tubular pre-product and a mandrel (4) carrying a piercing head (3) and engaging from the inside in the tube or tubular pre-product, wherein immediately after the solid billet has been completely pierced by the piercing head a fluidized deoxidation agent and/or an inert gas is supplied to the end of the tube or tubular pre-product facing the roll and is guided through the tube or tubular pre-product into the interior of the tube or tubular pre-product when the mandrel is withdrawn. The invention further relates to a rolling mill for performing the method according to the invention, comprising at least one roll acting from the outside onto the solid billet or tubular pre-product and a mandrel carrying a piercing head and engaging from the inside in the tube or tubular pre-product, wherein a device is provided for feeding and introducing a fluidized deoxidation agent and/or an inert gas to the end of the tube or tubular pre-product facing the at least one roll.
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
B21B 45/04 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling
The invention relates to a rolling mill defining a rolling axis and comprising rolling stations. At least one rolling station comprises a fixed structure, a roll-holder cartridge and three actuators. The cartridge is connected removably to the fixed structure and comprises three rolling rolls. The rolls are movable radially and rotatable about three respective axes. Three actuators of the single-stroke type are mounted on the fixed structure and comprise pistons movable along respective radial axes to impart a force on the rolls for rolling an article. Three gearmotors provide the rolls, by means of spindles, with the torque for feeding the article along the rolling axis. When two pistons are completely retracted, a path is created free from obstacles allowing the cartridge to pass out laterally. Then, one spindle may be subject to a rotation-translation to be removed from the path, the respective gearmotor being fixed on its base.
B21B 13/12 - Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process axes being arranged in different planes
The invention relates to a pipe rolling plant 10 comprising a rotary piercer 20, a treatment station 30 and a main rolling mill 40. The rotary piercer and the treatment station are arranged so that the pierced blank 51 leaving them is arranged with the irregular tail 511 facing the main rolling mill 40 and with the regular head 510 facing the mandrel 41. The invention also relates to a rolling mill 40 comprising a plurality of rolling stations 43, each station comprising a plurality of rolling rolls 42, the radial position h of which is adjustable. The rolling mill also comprises a control circuit for calculating and/or measuring the distance d between the axes of rotation r of the rolls and the trailing edge 520 of the pipe 52. The control circuit is also designed to displace the rolling rolls radially towards the outside of the pipe in each rolling station 43n when the distance d assumes a predetermined value d0.
B21B 17/06 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel in a discontinuous process
B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
B21B 17/04 - Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel in a continuous process
38.
METHOD FOR OPERATING A BRUSH ROLL ON A ROLL STAND, AND BRUSH ROLL
The invention relates to a method for operating a brush roll (1) on a roll stand (2), wherein the brush roll (1) comprises at least one rotating brush (3) which can be brought into engagement with a working roll (4) on the roll stand (2). The brush (3) is driven in rotation by a hydraulic motor (5). The hydraulic motor (5) can be brought into connection with a hydraulic fluid supply source (6), wherein the hydraulic fluid supply source (6) comprises a pump (7) and a drive motor (8) driving the pump (7) and wherein a working fluid is maintained at a predefined base pressure (p0) by the pump (7). The method according to the invention provides the following steps to reduce the heat input into the brush roll: a) determination of the load applied by the brush (3) onto the working roll (4) and/or the power (PB) consumed by the brush (3); b) determination of a working pressure (p1) of the working fluid necessary for the brush (3) to apply the load or consume the power (PB); c) comparison of the required working pressure (p1) with the base pressure (p0); d) reduction of the drive output (PM) of the drive motor (8) in the hydraulic fluid supply source (6) if the working pressure (p1), particularly taking a tolerance into consideration, is lower than the base pressure (p0) and increasing the drive output (PM) of the drive motor (8) in the hydraulic fluid supply source (6) if the working pressure (p1), particularly taking a tolerance into consideration, is greater than the base pressure (p0). The invention further relates to a brush roll.
B24B 29/00 - Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
The invention relates to a method for operating an arc furnace (1), wherein the arc furnace comprises a receiving vessel (2) for molten material (3) and also at least one electrode (4), wherein the electrode (4) is arranged on a carrier arm (5) and is held thereby, wherein a foamed slag former (C) is introduced into the receiving vessel (2) in order to form a layer of foamed slag (6) with a height (h) on the molten material (3). In order to determine the foamed slag height in an improved manner, and to thereby optimize the feed of the foamed slag former, the method comprises the following steps: a) determining a functional relationship (h = f (a)) between the oscillations of the electrode (4) or of the carrier arm (5) during operation of the arc furnace (1) and the height (h) of the foamed slag (6) by measurement; b) operating the arc furnace (1), the oscillations of the electrode (4) or of the carrier arm (5) being measured and, on the basis of these measured values, the height (h) of the foamed slag (6) being determined using the functional relationship (h = f (a)) determined in step a).
C21C 5/52 - Manufacture of steel in electric furnaces
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
The present invention relates to a method for dynamically supplying coolant to a cooling device, in particular at least one spray bar, for cooling metal strip or other rolled stock. According to the method, a pre-accelerated stream of coolant is provided, which passes by the cooling device (1) and is fed into a return (3). Furthermore, the presence and/or the temperature of a metal strip or other rolled stock to be cooled is monitored and, depending on the presence and/or the temperature of the metal strip or the other rolled stock, the stream of coolant is diverted to the cooling device (1), wherein, instead of passing by the cooling device (1) and being fed into a return (3), the stream of coolant is fed to the cooling device (1) for cooling the metal strip or the other rolled stock. The present invention also comprises a corresponding device for carrying out the method.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
B08B 3/02 - Cleaning by the force of jets or sprays
41.
SPRAY NOZZLE DEVICE, IN PARTICULAR FOR SPRAYING A CAST STRAND
The invention relates to a spray nozzle device for spraying a cast strand or similar metallurgical products with a misty air/water mixture in the form of a mist for uniformly cooling the cast strand. The air/water mixture is produced in a mixing chamber (2) of the spraying device. Said mixing chamber acts as a diffusor and is provided with an air inlet (3), a water inlet (4), and a nozzle outlet (5) oriented approximately in alignment with the air inlet. The air inlet (3) is arranged in an air inlet nozzle (6), the tip (7) of which protrudes into the upper region of the mixing chamber and preferably has a plurality of air outlet holes (9) there, which air outlet holes are oriented perpendicular to the longitudinal axis of the mixing chamber. Water enters near the tip (7) through at least one water outlet hole (11), which is oriented perpendicular to the longitudinal axis and which is placed in such a way that the water jet exiting the water outlet hole flows past the air outlet holes (9). The spray nozzle according to the invention is characterized in that the air flow or the air pressure and the water flow or the water pressure do not influence each other.
The invention relates to a method for cleaning and/or descaling a slab or a preliminary strip (1) by means of a descaling device (2), wherein the descaling device (2) has at least one nozzle (3), through which water under pressure (p) is discharged onto the surface of the slab or of the preliminary strip (1). In the method according to the invention, in order to achieve a good descaling result in an energy-saving manner, the outlet (4) of the nozzle (3) is rectangular, or is slit-shaped and has an arcuate course at least in some sections, in a direction normal (N) to the surface of the slab or of the preliminary strip (1), such that the water is discharged as a continuously strip-shaped jet (5) across the entire width (B) of the slab or of the preliminary strip (1), wherein the width (b) of the outlet (4) of the nozzle (3) in a conveying direction (F) of the slab or of the preliminary strip (1) is selected between 0.2 mm and 1.5 mm, wherein the water is fed to the nozzle (3) at a pressure between 5 bar and 50 bar and wherein the distance (a) between the outlet (4) of the nozzle (3) and the surface of the slab or of the preliminary strip (1) is selected between 8 mm and 50 mm. The invention further relates to a descaling device.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
B21B 45/08 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling hydraulically
The invention relates to a device for trimming rolled material (10) in a rolling mill, comprising a trimmer (1, 2) for trimming the edges of the rolled material (10) and an edge cutter (6) arranged after the trimmer (1, 2) for cutting up the cut-off edge (11), wherein an edge press (9) for pressing the cut-off edge (12) is arranged after the edge cutter (6).
B23D 31/04 - Shearing machines or shearing devices covered by none or more than one of the groups Combinations of shearing machines for trimming stock combined with devices for shredding scrap
44.
METHOD AND DEVICE FOR OPTICALLY MEASURING THE INTERIOR OF A PIPE
The invention relates to a method and a device for optically measuring the interior of a seamless pipe which is manufactured by rolling or of a pipe which is welded with a longitudinal seam and is manufactured from sheet-metal plates shaped to form half-shells or from a shaped sheet-metal plate or from a metal strip which is unwound from a coil, comprising a sensor means (9) which emits a laser beam (10) in the interior of the pipe (3). In such a method and device, an internal measurement of seamless pipes or pipes which are welded with a longitudinal seam is to be provided with which it is easily possible to determine and model precisely the ovalness and straightness of the pipe (3) in a station. For this purpose there is provision that the sensor means (9) is moved horizontally through the pipe (3), wherein the internal contour (15) of the pipe (3) is measured in that a laser tracker (12) which is positioned at the end of the travel path follows, with its laser beam (13), the respective position of the sensor means (9) in the space of the pipe (3) and senses deviations of the sensor means (9) from straightness.
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
B23K 9/095 - Monitoring or automatic control of welding parameters
45.
MACHINE FOR MACHINING PIPE ENDS, HAVING A CENTERING DEVICE FOR CENTERING A TUBULAR WORKPIECE IN RELATION TO AN AXIS OF ROTATION
The invention relates to a machine (1) for machining pipe ends. At least one centering device (8; 35) is associated to said machine, which centering device centers a tubular workpiece (5, 5') in relation to an axis of rotation (D) of the machine for machining pipe ends extending in the center of the machine, the tubular workpiece either being stationary in the case of a rotating tool head (4) or rotating in the case in which the tubular workpiece is fastened in the machine chuck (9). Precise centering of the tubular workpiece (5, 5') is quickly and simply achieved in that the centering device (8; 35) has a clamping housing (13; 130) that is open toward the axis of rotation (D), which clamping housing is designed comprising at least three means (14, 15, 16; 140, 150, 160) for contacting the tubular workpiece at the outer circumference and for clamping the tubular workpiece (5, 5') in a centered manner, which means are circumferentially distributed and adjust mechanically independently of each other to the particular diameter of the workpiece (5, 5') to be machined.
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
B23Q 3/18 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for positioning only
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
B23B 31/12 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable
B23B 5/08 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathesCentreless turning
46.
Sensor harness clamp for continuous casting sensors
A harness clamp to hold, position and mount multiple thermocouple wire sensors in a continuous casting mold tube. The harness clamp has longitudinally spaced wire sensor openings with multiple apertured mounting tabs extending from a in use folded wire chase enclosure body member portion with overlying engagement retainment flanges to secure the wire retainment flange portion over the wire sensors positioned therewithin.
F16L 3/08 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
F16L 5/00 - Devices for use where pipes, cables or protective tubing pass through walls or partitions
F16L 3/12 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
The invention relates to a method and a device (1) for replenishing an electrode (2) of a metallurgical furnace having a furnace cover (14), said electrode having a sensitive length section (21). The device (1) comprises a first and a second clamping ring (4, 5), adjusting cylinders (6, 7) for moving the first clamping ring (4) in relation to the second clamping ring (5) by a compensation stroke and for moving the electrode (2) in relation to the furnace cover (14) and a control apparatus (1s) for controlling the clamping rings (4, 5) and the adjusting cylinders (6, 7), wherein the control apparatus (1s) is programmed such that the compensation stroke for the adjusting cylinders (6, 7) for moving the first clamping ring (4) in relation to the second ring (5) can be set variably and in an automated manner, such that retightening of the first clamping ring (4) around the electrode (2) after the compensation stroke has been reached occurs only adjacently to the sensitive length section (21) of the electrode (2) and not within said length section (21).
If a mandrel (6) for extruding metal pipes, having two axially offset pressing surfaces (63; 64) with different radial embossing and having a transition region (66) between these two pressing surfaces (63; 64) has a support surface (62) in the transition region (66) then the negative effect of narrowing, which arises owing to the mandrel (6) shifting from a first pressing position, in which the first (63) of the two pressing surfaces interacts with a die, to a second pressing position, in which the second pressing surface (64) interacts with the die, can be minimised.
The invention relates to a guide roller comprising a bearing journal (13) at each of two ends. Each bearing journal is provided with a plain bearing (14), which is designed as a hollow journal, and can be connected to the coolant supply line in order to conduct a coolant through the hollow journal into the coolant channel (12) or to conduct the coolant out of the coolant channel. The plain bearing (14) is lubricated by the coolant that is conducted through the bearing journal (13) designed as a hollow journal. A roller assembly for a strand casting system is provided with a plurality of said guide rollers (1). The guide rollers are arranged at an axial distance from each other along a strand (2) produced by the strand casting system and are each rotatably supported in a respective bearing mount (3). Each bearing mount is arranged on at least one frame part (4, 5) in a preloaded manner. The bearing mounts (3) are supported on the frame parts (4, 5) so as to be self-setting by means of elastically pliable connecting means (6). Even if the strand cross-section of the produced strand changes during the operating duration or due to changed process parameters, the originally set pressing force of the guide rollers remains substantially unchanged.
B22D 11/128 - Accessories for subsequent treating or working cast stock in situ for removing
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B21B 27/08 - Lubricating, cooling, or heating rolls internally
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
The invention relates to a continuously operating casting and rolling system having a strip tension control means, consisting of a casting unit having a melt-containing feed vessel comprising a horizontal casting channel and a discharge region in the form of a casting nozzle, and a primary cooling zone comprising two guide rolls (2) and a circulating cooled casting strip (1) and at least one downstream rolling unit (4) consisting of at least two drivable rollers. In order to minimise the tension on the cast strip, the casting unit and the subsequent rolling unit are mechanically decoupled, wherein for the decoupling at least one driver unit (3, 3', 3") comprising at least two drivable rollers for driving the strip is arranged between the casting belt and the rolling unit.
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
51.
METHOD AND DEVICE FOR COOLING SURFACES IN CASTING INSTALLATIONS, ROLLING INSTALLATIONS OR OTHER STRIP PROCESSING LINES
The invention relates to a method for cooling a surface of cast material, rolled material (1) or a roll. Provided for the method is a nozzle, which comprises an inlet (3) and an outlet (5) lying opposite the surface to be cooled. Also provided is a preferably single-phase volume flow (V) of a cooling fluid, which is fed to the nozzle (2) via the inlet (3) and leaves the nozzle (2) through the outlet (5). According to the invention, the nozzle outlet (5) is mounted at a variable distance (d) from the surface to be cooled, wherein the volume flow (V) of the cooling fluid fed to the inlet (3) of the nozzle (2) is set in such a way that, in accordance with the Bernoulli principle, the nozzle (2) is sucked firmly against the surface (1) to be cooled. In addition, the invention is directed to a cooling device (10) for carrying out the method according to the invention and to a rolling device comprising this cooling device (10).
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
52.
SYSTEM FOR STITCH WELDING IN THE PRODUCTION OF SEAM HEAT SEALED PIPES MADE OF SHEET PANELS
The invention relates to a system for stitch welding seam heat sealed pipes (2) made of sheet panels, particularly thick sheet panels, which are shaped to form half-shells (2a, 2b). For each half-shell (2a; 2b) a linear transport path (7) is formed, which paths extend in parallel with, and spaced apart from, each other, and are provided with means for guiding in a supported manner, for pivoting together and for centring the half-shells (2a; 2b) which are pivoted with respect to each other. Two such half-shells (2a, 2b) are connected together by means of stitch welding on the seams thereof resulting from the longitudinal edges lying opposite each other, for which purpose a welding machine (4) is provided.
A workpiece-shaping tool assembly has a drive shaft having an outer end centered on and rotatable about an axis and a tool fittable with the end of the drive shaft. A torque coupling is formed by shaft splines formed on the drive shaft and tool splines formed on the tool, complementary to the shaft splines, and interfitting with the shaft splines. A radial-force coupling is formed by an inner cylindrical shaft surface formed on the shaft axially offset from the shaft splines and centered on the axis and a respective inner cylindrical tool surface formed on the tool offset from the tool splines, centered on the axis, and radially juxtaposed and engageable with the inner shaft surface.
The invention relates to method for tapping slag and metal from an electric arc furnace comprising a lower vessel, cooled lateral walls adjoining the lower vessel and a cover that closes off the furnace in an upward direction and that has electrodes guided therethrough, wherein the lower vessel has a tapping channel for metal and, for tapping slag, can be tilted through a diametrically opposite furnace door in the direction of the longitudinal axis. The invention also relates to an electric arc furnace for carrying out the method. The method is characterised in that the furnace for tapping the slag and also for tapping metal is tilted beyond the starting point merely by raising at one side or by repositioning without lowering.
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/19 - Arrangement of devices for discharging
F27D 3/15 - Tapping equipmentEquipment for removing slag
The invention relates to a roll arrangement (100) for use in metallurgical technology, comprising a roll that has a roll barrel (11) and two roll necks (10), and at least one neck bushing (20) for accommodating at least one of the roll necks (10) in a rotationally fixed manner. A dog element (25) that functions as a form-locking rotationally fixed connection is arranged between the roll neck (10) and the neck bushing (20). In order to increase the load-bearing capacity of the roll bearing without increasing the size of or the mounting space for the roll bearing and at the same time ensure easy assembly, the roll neck (10) is mounted in the neck bushing (20) with some radial play such that a circumferential cavity (12) is formed between the neck bushing (20) and the roll neck (10) in the unloaded state as a result of the radial play. In order to increase the size of the cavity (12), the roll neck (10) or the inner surface (21) of the neck bushing (20) additionally has a concave contour (50) or profile.
The present invention relates to a method for measuring the distance (d) of a measuring position from a reference position, wherein the distance measurement is carried out using the measuring beam (2) of a laser tracker (1), and the measuring position is marked prior to the actual distance measurement by means of the measuring beam, wherein the distance measurement is controlled in a wireless manner. The invention further relates to a measuring device for measuring the distance (d) of a measuring position from a reference position, comprising a laser tracker (1) for carrying out a distance measurement by means of the measuring beam (2), and a control device (5) for controlling the laser tracker (1), wherein the control device (5) is configured such that the measuring position can be marked prior to the actual distance measurement by means of the measuring beam (2), wherein the distance measurement can be controlled in a wireless manner.
The invention relates to a roll arrangement (100) for use in metallurgical technology, comprising a roll that has a roll barrel (11) and two roll necks (10), and at least one neck bushing (20) for accommodating one of the roll necks (10) without play and in a rotationally fixed manner. In order to increase the load-bearing capacity of a roll arrangement without increasing the size of or the mounting space for the roll arrangement, a circumferential cavity is formed between the neck bushing (20) and the roll neck (10) in the unloaded state of the roll arrangement.
The invention relates to a method for opening and closing a tapping opening (1) of a metallurgical melting vessel (2), in particular of an electric arc furnace, in the bottom region (3) of which a wall section (4) having an opening (5) is arranged, wherein a device (6) for moving block elements (7, 8) in a direction (T) perpendicular to the surface normal of the wall section (4) in the area of the opening (5) is arranged below the opening (5), wherein the device (6) holds the block elements (7, 8) on the wall section (4) in such a way that the block elements lie against the wall section in a sealing manner. In order to achieve wear-free and reliable opening and closing of the tapping opening, it is provided that, in order to close the tapping opening (1), a block element (7) free of passage openings is moved under the opening (5) by the device (6), and that, in order to open the tapping opening (1), a block element (8) having at least one passage opening (9) is moved under the opening (5) by the device (6), such that liquid metal can drain from the melting vessel (2) through the passage opening (9) in the block element (8). The invention further relates to a metallurgical melting vessel.
The invention relates to a method for the surface inspection of strip pieces (120). The invention further relates to a device for carrying out the method. The method according to the invention comprises the following steps: cutting off the strip pieces (120) from a metal strip (210), wherein the strip pieces (120) comprise a length less than twice the circumference of a work roll (230) by means of which the metal strip (210) has previously been rolled; automatically checking the upper and/or lower side of the cut-off strip pieces (120) with the aid of a camera system (150) and an analysis unit (300) in regard to any periodic types of faults that may be present and caused by the work roll; ending the surface inspection process if periodically occurring types of faults are detected, or; feeding the cut-off strip pieces (120) to a strip inspection unit (140) for checking by means of inspection personnel for non-periodic types of faults if no periodic types of faults had previously been detected.
The invention relates to a method for operating a conveyor belt (3) of a strip casting system (1), comprising the steps of performing a profile measurement of the conveyor belt (3) in order to detect the position and/or the expansion of deformations (340) of the conveyor belt (3) and selectively heating the conveyor belt (3) in the area of the detected deformations (340) in order to reduce and/or eliminate the deformations by means of subsequent thermal contraction.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
61.
METHOD AND STRAND GUIDE FOR INFLUENCING THE SOLIDIFICATION OF THE PARTIALLY STILL LIQUID CORE DURING CONTINUOUS CASTING
The invention relates to a method for influencing the solidification of the partially still liquid core of slabs and billets of steel during continuous casting. It is provided in this respect that the effect of a force or displacement is periodically applied to the wide sides of the strand.
The invention relates to a method for producing a metal strip, by applying a metal melt to a moving ferromagnetic conveyor belt, wherein an electromagnetic alternating field, which is at least predominantly or substantially perpendicular to the surface of the metal melt, is generated by means of a magnet system comprising a magnet yoke and coil. The alternating field is formed by a pair of electrically connected coils arranged parallel to one another and extending in the width direction of the metal strip. The alternating field acts stationarily on the melt, across the entire width of the metal strip that is forming, in such a manner that in the width direction of the metal strip an electromagnetic flux is generated in the metal melt and, by means of superimposition with the alternating field, force is exerted perpendicularly on the metal melt.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
B22D 11/124 - Accessories for subsequent treating or working cast stock in situ for cooling
63.
HYDRAULIC EXTRUSION PRESS AND METHOD FOR OPERATING A HYDRAULIC EXTRUSION PRESS
The invention relates to a hydraulic extrusion press comprising at least one ram, the ram being driven by means of hydraulic oil from a main line (1) and a hydraulic control pressure being used to control the extrusion press. To minimise non-productive periods, the control pressure is also supplied to the main line.
B21C 23/21 - Presses specially adapted for extruding metal
B21C 31/00 - Control devices for metal extruding, e.g. for regulating the pressing speed or temperature of metalMeasuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
The invention relates to a device (1) for cooling a roll (2), in particular a working roll (2) for rolling materials (3) to be rolled, comprising a cooling shell (50), which lies opposite at least one sub-region of the circumference of the roll surface, for forming a cooling gap (5), through which a cooling fluid can flow, between the sub-region of the roll surface and the cooling shell (50). The device (1) further comprises a first lever (40) which can be pivoted about a suspension point (8), which can be pivoted in the direction of the roll surface, and which is rotatably connected to a first end region (51) of the cooling shell (5), when viewed in the circumferential direction (U) of the roll (2), and a second lever (90) which can be pivoted about another suspension point (8), which can be pivoted in the direction of the roll surface, and which is movably connected to the second end region (59) of the cooling shell, when viewed in the circumferential direction (U) of the roll, such that the cooling gap (5) can be selectively reduced or increased by pivoting the levers (40, 90). The invention further relates to an installation (10) for cooling a roll (2), said installation comprising the device (1) according to the invention, and to a method for using the device (1) or the installation (10).
The application is directed to a device (1, 1') for cooling a roll (2), in particular a working roll (2) for rolling rolling stock (3), wherein the device comprises a cooling shell (50, 60) which lies opposite at least one part region of the circumference of the roll surface for forming a cooling gap (5) between the part region of the roll surface and the cooling shell (50, 60), through which cooling gap (5) cooling fluid can flow, and a lever (40, 44) which can be pivoted about a suspension point (8, 48), can be pivoted in the direction of the roll surface and is connected rotatably to a first half (51, 61) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2), wherein the cooling gap (5) can optionally be reduced in size or enlarged by pivoting of the lever (40, 44). Furthermore, the device according to the invention comprises a variable-length linear guide (90, 99) which can be pivoted about a further suspension point (88, 48) and is connected rotatably to the second half (59, 69) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2).
The invention relates to a cooling device for a melting furnace, in particular for cooling a liquid slag (S) in a reduction furnace. The device comprises a lining (3) for laterally shielding a liquid molten metal bath (M) and a liquid slag (S) which is located on said bath, and the device also comprises a metal plate (5) which is arranged on a lining (3) side facing away from the molten metal bath (M) and the slag (S). The metal plate (5) comprises a plurality of slots (13) which are oriented in a substantially vertical manner and which are arranged adjacently to one another, wherein one copper plate (7) extends into the lining (3) through each of the slots (13) substantially perpendicular to the metal plate (5). The device further comprises cooling channels (9) through which coolant can flow and each of which is arranged between two adjacently arranged slots (13) and the copper plates (7) extending through said slots (13) on the metal plate (5) side facing away from the molten metal bath (M) and the slag (S). The invention additionally relates to a furnace comprising the cooling device and to a method for producing such a cooling device or such a furnace.
The invention relates to a scrap melting furnace-ladle furnace system, in which the scrap is melted in the scrap melting furnace by means of supplied primary energy, and the metal melt is tapped into a ladle furnace, in which the melted metal is superheated by electrical energy, particularly an arc furnace, and the steel optionally undergoes a final alloying process. The invention also relates to a method for operating a scrap melting furnace-ladle furnace system.
The invention relates to a low-shaft arc furnace with a shaft tube, in which at least one electrode is arranged so that it can move axially, a scrap feed in which at least one electrode is arranged so that it can move axially, a scrap feed in the intermediate space between the furnace vessel outer wall and the shaft tube, a hearth adjoining the lower end of the furnace vessel and intended for receiving the molten metal and also a tapping hole for the slag and a tapping hole for the metal as well as burners directed into the furnace chamber. According to the invention, scrap ledges or fingers are provided in the region of the lower end of the shaft tube, facing in the direction of the shaft tube from the outer wall of the furnace vessel and surrounding the shaft tube at a distance. Primary gas burners are also arranged above the scrap ledges or fingers for melting the scrap collecting on the scrap ledges. The annular space between the scrap ledges and the shaft tube is dimensioned such that the liquid metal can flow through the annular space into the hearth.
F27B 3/04 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-hearth typeHearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-chamber typeCombinations of hearth-type furnaces
F27D 13/00 - Apparatus for preheating chargesArrangements for preheating charges
69.
REFRACTORY CASTING TUBE FOR A MOULD FOR CONTINUOUSLY CASTING MOLTEN METAL
A refractory casting tube for a mould for continuously casting molten metal is provided with a top part (33) and a bottom part (35) which dips into the molten metal in the inner mould space (6) during the casting. A refractory deflection element (35) is integrated in the funnel-shaped or similarly shaped inlet (34) of the top part (33) and is shaped in such a manner that a fluid-dynamic dissipation is generated on the molten metal (21) during casting in said inlet (4, 34). The molten steel therefore flows into the mould roughly as a uniform flow with a homogeneous and stable distribution.
The invention relates to a support roller (1, 10), particularly for rolling mill systems or equipment for casting, conveying or straightening metal products, comprising a cylindrical roller axle (2, 20), a hollow cylindrical outer ring (3, 30) arranged concentrically in relation to the roller axle (2, 20), and a plurality of rolling bodies (5, 50) arranged between the roller axle (2, 20) and the outer ring (3, 30). According to the invention, the roller axle (20) further comprises a cavity (70), at least in certain sections between its central axis (A) and a load introduction point. Due to the provision of the cavity according to the invention, particularly the load rating and the service life of the support roller are increased.
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B 13/14 - Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load
71.
METHOD AND DEVICE FOR LONGITUDINAL SEAM WELDING OF PROFILED TUBES ON A TUBE WELDING SYSTEM
The invention relates to a method and a device for longitudinal seam welding of profiled tubes on a tube welding system which is connected to a system computer for process control, and to which a slotted tube (5) formed directly in line from a metal strip in a roll forming mill, or a slotted tube shaped from at least one sheet metal panel is supplied, in particular, for welding the longitudinal seam or the longitudinal seams, wherein the tube welding machine is equipped with a means (12) for measuring the temperature of the welding point which is effective at the narrowest location and is occupied by the metal edges of the slotted tube pressed together by means of rollers (8) to form a gap with a tapering V shape. The longitudinal seam welding can be optimised in that temperature fluctuations and shifting of the welding point can be detected by a thermal imaging camera (12) directed onto the vertex of the convergent V-shaped gap with the longitudinal seam being formed, wherein the continuously measured data are processed in the system computer (7) for regulating the welding process in such a way that the welding point (11) at the hottest degree of effectiveness thereof is always located at the same position.
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
B23K 13/08 - Electric supply or control circuits therefor
The invention relates to a supply device for a shaft furnace connected to a gas extracting unit, having a feed device leading to the head of the upper vessel of the furnace and a loading device at least partially integrated in the atmosphere in the furnace for filling the furnace vessel with bulk material. The loading device consists of a drum which is rotatable about a rotational axis arranged horizontally with respect to the longitudinal axis of the furnace and has, at the circumference thereof, a sector-shaped cutout for introducing and removing the load.
The present invention relates to a method for the surface inspection of metallurgic cast products (1) in a production line, comprising the steps of receiving a thermographic image of at least one partial area of the cast product (1) and evaluating the thermographic image for the presence of surface defects and/or defects near the surface. The invention further relates to a device for inspecting metallurgic cast products (1) in the production line, comprising a thermography camera (2), which is arranged such that a thermographic image of at least one partial area of a cast product (1) can be made using said camera, and an evaluating device (5) for evaluating the thermographic image for the presence of surface defects and/or defects near the surface.
The invention relates to an apparatus for straightening metal strips, comprising a first, upper group (1) and a second, lower group (1') of straightening rollers arranged in each case immediately in succession in a strip running direction, and a group of individually controllable actuators (2) arranged alongside one another in a transverse direction, wherein an axial bending profile of at least a first of the straightening rollers (1) is settable by the group of actuators (2), wherein at least one second group of individually controllable actuators (2) arranged alongside one another in the transverse direction is provided, wherein an axial bending profile of the least a second of the straightening rollers (1), which is in particular different from the bending profile of the first bending roller (1), is settable by the second group of actuators.
B21D 1/02 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefromStretching sheet metal combined with rolling by rollers
The invention relates to a device (1) for detecting the presence of rolling or cast stock (2), more particularly a metal strip or plate (2), in a casting, rolling or other strip processing facility, wherein the device comprises a detection device (3) for detecting a fluid jet (5) which indicates the presence of the rolling or cast stock (2), and this detection device in turn comprises an air-filled cavity (7), which has a tubular opening (9), and a pressure sensor (11) for detecting an air pressure change in the cavity (7) when the fluid jet (5) hits the tubular opening (9). The invention further relates to a corresponding method for determining the position of rolling or cast stock (2), more particularly a metal strip or plate (2), which moves through a casting, rolling or other strip processing facility.
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B65H 7/02 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
The invention relates to a sealing device (100) for installation in a roll arrangement between the roll journals (110) of a roll (200) and an installation piece (300). The sealing device has an annular main body (110) having sealing rims (120-1, 120-2) that extend radially outwards. Furthermore, the sealing device (100) has an annular reinforcement element (130) having a strip-like section (132) which coaxially surrounds the main body (110) on the outer side thereof. In order to ensure the dimensional stability and thus also the function of the sealing device even after the installation thereof in the roll arrangement, that is to say after said sealing device has been pushed onto the frustoconical roll journals, the reinforcement element according to the invention has, in addition to the coaxial strip-like section, at least one flange (134-1, 134-2) which is connected thereto and is connected to the sealing rim (120-1, 120-2). Furthermore, the invention relates to said roll arrangement.
An apparatus for making a cold-pilger-rolled tube has two grooved pilger rolls rotatable about respective axes to compress a workpiece moving in a travel direction against a mandrel extending in the direction between a nip formed between the rolls and anchored upstream of the nip in a thrust block. Workpiece thickness is adjusted on the fly by measuring a wall thickness of the workpiece downstream in the direction from the roll as the workpiece passes through the nip and for displacing the thrust block and mandrel in to the travel direction as the workpiece passes through the nip in accordance with the measured wall thickness.
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
B21B 25/02 - Guides, supports, or abutments for mandrels, e.g. carriagesAdjusting devices for mandrels
The invention relates to a Steckel mill (1), comprising at least one reversing roll stand (2), a coiling furnace (3) arranged on the inlet side of the reversing roll stand (2), and a coiling furnace (4) arranged on the outlet side of the reversing roll stand. According to the invention, in order to achieve an economical implementation of a Steckel mill while maintaining high functionality, respective integral units (5, 6) having a driver (7), a shear (8), and a looper (8) are arranged between the coiling furnace (3) arranged on the inlet side and the at least one reversing roll stand (2) and between the at least one reversing roll stand (2) and the coiling furnace (4) arranged on the outlet side.
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
79.
DEVICE FOR STRAIGHTENING A FLOW FOR COOLING A ROLL OR A METAL STRIP
The invention is directed to a device (1) for straightening a stream of cooling medium for cooling a roll or a metal strip. This device (1) comprises a hollow body (3), extending over at least part of the width of the roll or the metal strip, and a tube (5), arranged in the hollow body (3) and extending in the direction of the width (B) of the roll or the metal strip, wherein the hollow body (3) is divided in the direction of the width (B) of the roll or the metal strip into a number of chambers and the tube (5) comprises openings (9) for introducing cooling medium into the chambers of the hollow body (3) and the chambers respectively comprise an opening for the flowing out of cooling medium from the hollow body (3). Furthermore, according to the invention the chambers respectively comprise a channel (12), formed between the inner wall of the hollow body (3) and the tube (5), for conducting cooling medium from the openings (9) of the tube (5) to the opening for the flowing out of cooling medium from the hollow body (3), wherein the flow cross section of the channel (12) narrows at least at its downstream end.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
80.
METHOD FOR THE CONTINUOUS CASTING OF A METAL STRAND IN A CONTINUOUS CASTING INSTALLATION AND A CONTINUOUS CASTING INSTALLATION
The invention relates to a method for the continuous casting of a metal strand in a continuous casting installation (1), in which, in a casting machine (2), the metal formed into a slab, with a still molten core, is brought out vertically (V) from a mould, wherein, downstream of the mould in the conveying direction (F), the slab is made to move along a casting bow (3), through a number of casting bow segments (4, 5, 6, 7, 8, 9, 10, 11), and is deflected into the horizontal (H), wherein each casting bow segment (4, 5, 6, 7, 8, 9, 10, 11) has a number of segment rollers (12, 13), which are designed for coming into contact with the surface of the slab. To allow consistently optimum process conditions to be maintained while the casting speed is changing, the invention provides that, in the region before the end of the casting machine (14), a number of segment rollers (12, 13) are lifted off from the surface of the slab, or are not installed in receptacles provided, and so the contact between the slab and the segment roller (12, 13) is interrupted or there is no contact. The invention also relates to a continuous casting installation.
The invention relates to a method for producing a metal strip (1) in a plant, comprising a continuous casting installation (2), a first furnace (3), a second furnace (4) and an adjoining rolling mill (5). To save energy, according to the invention the method provides the following steps: a) setting a production level of metal slabs or metal strips (1) to be produced, comprising at least two different metal slabs or metal strips (1); b) determining the respective entry temperatures (TFM) into the rolling mill (5) for all the metal slabs or metal strips (1) to be produced; c) determining an exit temperature (TAO1) from the first furnace (3), wherein this temperature is chosen to be lower than the highest entry temperature (TFM) into the rolling mill (5) determined in step b) and is chosen to be lower than or substantially the same as the lowest entry temperature (TFM) into the rolling mill (5) determined in step b); d) operating the first furnace (3) in such a way that the metal slabs or metal strips (1) to be produced leave the first furnace (3) with the exit temperature (TAO1) determined according to step c); e) heating or reheating a metal slab to be produced or metal strip (1) to be produced by means of the second furnace (4) to its required entry temperature (TFM) into the rolling mill (5), provided that this temperature lies above the exit temperature (TAO1) of the first furnace (3) that was reached according to step d). The invention also relates to a plant for producing a metal slab or a metal strip.
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
The invention relates to an edger rolling mill (1) for edging metal strips, comprising a roll housing (20, 22) and a mechanical adjustment device (3) for adjustment of an edging roll (2), wherein the mechanical adjustment device (3) comprises an adjusting screw (30) and a clamping nut (32) for adjusting the edging roll (2). The edger rolling mill has a balancing device (4), comprising a balance bushing (40) arranged on the roll housing (22), which receives the clamping nut (32) and the adjusting screw (30) and which is movable in order to balance the edging roll (2) relative to the roll housing (22).
The present invention relates to a method for recovering a metal from a slag containing the metal, in which the metal-containing slag is heated in at least one stirred tank reactor (2), and in which the liquid slag in the stirred tank reactor (2) is stirred by means of an appropriately directed magnetic field, wherein the slag is periodically stirred. The invention further relates to a device for recovering a metal from a slag containing said metal, comprising a stirred tank reactor (2) for heating the metal-containing slag and an electromagnet (13, 14) for generating a magnetic field in such a way that the liquid slag is stirred, wherein a switching device (15) is provided for the periodic operation of the electromagnet (13, 14).
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/10 - Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
F27B 14/06 - Crucible or pot furnacesTank furnaces heated electrically, e.g. induction crucible furnaces, with or without any other source of heat
F27B 14/08 - Details specially adapted for crucible, pot or tank furnaces
F27B 19/04 - Combinations of different kinds of furnaces that are not all covered by any single one of main groups arranged for associated working
The present invention relates to a method for temperature control in a rolling mill for production of preliminary strip comprising the steps: determining sections of reduced temperature in the preliminary strip and selective addition of heat energy to the sections of reduced temperature of the preliminary strip. The present invention further relates to a device for temperature control in a rolling mill.
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
85.
METHOD AND DEVICE FOR ROLLING ROLLING STOCK AND USE OF A COOLING LUBRICANT
The present invention relates to a method for rolling rolling stock (1), wherein a water-based cooling lubricant is applied to the rolling stock (1) and/or to at least one roller (20, 22, 30, 32) which forms a roll gap (200, 300), at least one water-soluble and tribologically active additive being added to the water-based cooling lubricant prior to application to the rolling stock and/or to the at least one roller.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
86.
METALLURGICAL DEVICE AND SEALING MEANS FOR A METALLURGICAL DEVICE
The present invention relates to a metallurgical device comprising at least one cooling device (10), into which at least one coolant duct (20, 22) is introduced, wherein the coolant duct (20, 22) is sealed by a sealing means (3) arranged in a sealing means mounting (24), wherein the sealing means (3) has a radial seal (4) for sealing the coolant duct (20, 22). The invention further relates to a sealing means (3) for a coolant duct (20, 22) of a continuous casting mould (1), wherein the sealing means (3) has a radial seal (4) for sealing the coolant duct (20, 22).
The invention relates to a method for cooling a roll (1), in particular a working roll (1) of a hot-rolling system, comprising the steps of feeding coolant (3) by means of a nozzle (5) into a gap (7) between at least a part of the roll surface and a cooling shell (9, 11) that can be placed against the part of the roll surface and adjusting the gap height (h) between the cooling shell (9, 11) and the roll surface. According to the invention, the adjustment of the gap height (h) comprises either measuring the pressure (Pactual) of the fed coolant (3) or measuring the volumetric flow rate (Vactual) of the fed coolant (3). The invention further relates to a corresponding device (10) for cooling a roll (1).
The invention relates to a converter gas discharge for a rotatable and pivotable blowing jet converter, having a cooling chimney hood between converter and static cooling chimney top section for discharging the converter gas to a gas recovery unit, wherein the cooling chimney hood is located at the top edge of the converter in a sealing manner. The cooling chimney hood can be raised and lowered relative to the static cooling chimney top section in order to leave free, in an upper position, an adequately large gap between converter edge and cooling chimney hood to allow the converter to make rotating and pivoting movements, while the edge of the cooling chimney hood facing the converter is located in a lower position at the edge of the static converter in a sealing manner. A seal permitting a vertical displacement between cooling chimney hood and cooling chimney top section is provided in the transition region from the cooling chimney hood to the static cooling chimney top section, and the cooling chimney hood can be lowered into a further position, in which it can be laterally displaced relative to the static cooling chimney top section.
In the case of a Cardan-joint shaft (1) comprising a first and a second jointed shaft portion (2, 3) and comprising bearing lugs (4) fastened in each case to a fastening region (7) of the first and second jointed shaft portions (2, 3) in particular by means of screw connections (8), which bearing lugs project in each case at one end beyond the respectively associated first or second jointed shaft portion (2, 3) and, in said projecting region (4a), hold between them a single-piece journal cross (6) which is mounted with in each case one journal (5) in an opening (10) of in each case one bearing lug (4), it is sought to provide a solution which permits the realisation of a Cardan joint which is of compact construction and nevertheless permits the transmission of high torques. This is achieved in that each bearing lug (4), at least in regions, engages in a positively locking and force-transmitting manner into in each case one of two recesses (12) formed diametrically oppositely in the fastening region (7) in the outer surface, in particular circumferential surface, of the first and of the second jointed shaft portion (2, 3).
F16D 3/38 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
B21B 35/14 - Couplings, driving spindles, or spindle carriers specially adapted for or specially arranged in metal-rolling mills
90.
METHOD FOR MAINTAINING AND/OR REPAIRING THE SPOUT AREA OF A METALLURGICAL VESSEL
The invention relates to a method for maintaining and/or repairing the spout area (1) of a metallurgical vessel, wherein a substantially hollow-cylindrical sleeve (3) in a perforated brick (2) of the metallurgical vessel is removed. In order to allow the sleeve to be replaced quickly and simply in the event of wear, the method according to the invention has the following steps: a) introducing at least one radially extending slit (4) into the sleeve (3), whereby the sleeve (3) is interrupted at at least one circumferential point (5); b) reaching behind the sleeve (3) or segments (3', 3'') thereof with a pulling tool (6); c) pulling the sleeve (3) or segments (3, 3'') thereof out of the perforated brick (2); and d) inserting a new sleeve (3) or a new brick material into the perforated brick (2).
A device is provided for cutting a cast strand of a strand casting system, preferably for producing long steel products. The device comprises cutting torches (23) which are directed transversely to the cast strand (12), and one or more nozzles (25) which blow a gas against the cast strand (12) at the cutting point (15) in order to remove the burrs (17) which form as a result of the cutting process at the sides of the cast strand (12). In the device (20), which is designed for a cast strand (12), the particular nozzle (25) which blows the gas against the cast strand is directed such towards the burr (17), which continuously forms at the cutting point (15), that an approximately complete removal of the burr is guaranteed when the cast strand part (12a) is cut away.
A tapered roll stand for making seamless pipe has a stationary frame formed relative to a workpiece-travel direction with a pair of laterally and horizontally oppositely open windows. Respective cover doors carried on the frame are vertically shiftable between respective closed positions covering the respective windows and open positions offset therefrom and exposing the respective windows. A pair of tapered rolls are each shiftable horizontally through a respective one of the windows into a use position inside the frame, lying to a respective horizontal side of the direction, and rotatable about a respective axis forming an acute angle with the direction. A pair of Diescher disks are vertically engageable with a workpiece extending in the direction between the tapered rolls, and respective roll-positioning actuators carried on the doors are couplable with the tapered rolls in the use position for setting positions of the tapered rolls.
B21B 31/10 - Interchanging rolls, roll mountings, or stand frames by horizontally displacing
B21B 19/02 - Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling
93.
INSTALLATION PART AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to an installation part for mounting an upper support roll in a roll stand. The installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole (130) extends, in the lower region of the installation part, in the direction of the drain side of the installation part. In order to be able to reduce the width in the lower region of the installation part and while guaranteeing the stability of the installation part, it is proposed according to the invention that the distance d from the centre point of the lubricant drain hole (130) to the vertical longitudinal centre plane LM of the installation part is ≤ half the diameter of the main hole and that - in the vertical longitudinal centre plane - the vertical minimum distance s from the counter face of a ring seal (400) in the lower region of the installation part to the horizontal tangential plane (500) at the top edge of the lubricant drain hole is not below a specified minimum clearance threshold value.
The invention relates to an installation part for mounting a lower support roll in a roll stand. The lower installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole 130 extends, in the lower region of the installation part, in the direction of the drain side of the installation part. Provided on the cambered side of the installation part is a seal holding ring for holding a round seal 400 for sealing the lubricant receiving space against the roll journal. In order to reduce the costs of producing the installation part and the costs incurred for maintaining the installation part, the invention proposes producing the installation part as one piece by means of casting with the seal holding ring 140.
With known trimming shears having a pair of scrap-cutting blades on the discharge side, the moving upper scrap-cutting blade must be moved as closely as possible past the trimmed plate edge in order to push the cutoff edge still hanging on the plate downward against the lower fixed scrap-cutting blade, which requires precise adjustment of the upper scrap-cutting blade. To that end, according to the invention, the distance between the upper scrap-cutting blade (2) or the lower scrap-cutting blade (3) and the trimming blade plane (5) is set prior to trimming in accordance with the thickness of each heavy plate (10) to be trimmed by displacement of the upper scrap-cutting blade (2) and/or the lower scrap-cutting blade (3) in a displacement direction with at least one component transverse to the trimming blade plane (5).
B23D 31/04 - Shearing machines or shearing devices covered by none or more than one of the groups Combinations of shearing machines for trimming stock combined with devices for shredding scrap
B23D 15/04 - Shearing machines or shearing devices cutting by blades which move parallel to each other having only one moving blade
B23D 31/00 - Shearing machines or shearing devices covered by none or more than one of the groups Combinations of shearing machines
B23D 35/00 - Tools for shearing machines or shearing devicesHolders or chucks for shearing tools
96.
ARC FURNACE WITH A FURNACE COVER SUPPORT ARM SYSTEM
Arc furnace with at least one furnace vessel, a furnace cover and a support arm system assigned to the furnace cover, said support arm system being designed so as to be capable of rotating and/or lifting and lowering the furnace cover onto the oven vessel via a rotating and/or lifting portal connected to the support arm system, and with at least one electrode support arm, which is designed to be capable of lifting and lowering an electrode through at least one passage opening in the furnace cover; with a single-acting hydraulic cylinder used on the piston side, which is connected to the base of the rotating and/or lifting portal at a first reception point and is rotatably mounted with a reception simulation assigned to the rotating and/or lifting portal at a second reception point, which is aligned in a line flush with the first reception point.
F27D 1/18 - Door framesDoors, lids or removable covers
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
97.
ELECTRIC ARC FURNACE AND METHOD FOR OPERATING SAME
The invention relates to an electric arc furnace and a method for operating same. The electric arc furnace comprises a lower vessel and a lid 120 placed on said lower vessel. The lower vessel has a tapping device for tapping molten metal. At least one electrode protrudes through the lid into the interior of the electric arc furnace, said electrode being held by an electrode holding device. A voltage supply device 150 is provided for supplying an electric direct current or alternating current to the electrode 130. The aim of the invention is to allow a continuous operation of the electric arc furnace. This is achieved in that the electrode holding device has an electrode adjusting device for adjusting the electrode dependent on the wear of the electrode and an electrode nippling device for nippling the electrode during the operation of the electric arc furnace. According to the invention, both the electrode adjusting device as well as the electrode nippling device 144 operate when the supply voltage of the electrode is switched on.
The invention relates to a blowing lance (2) for a BOF converter. A vibration sensor (5) is provided within the blowing lance (2) in order to detect the lance vibrations.
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
99.
CHUCK FOR A MACHINE TOOL FOR MACHINING A TUBULAR, ROTATING WORKPIECE
The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece (26) which rotates about a rotational axis that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate, and bear chucking jaws (8a, b, c). Such a chuck is intended to be created with improved operating characteristics and extension to all chucking functions. To this end, for the external central chucking of a tube (26), there are provided centring slides (27a, b, c) which can be disengaged from the chuck head plate with a forward inclination towards the end of the tube to be machined and centre the tube by means of chucking claws (29) which are arranged at the front, free end of centring slide rods (28), said centring slides (27a, b, c) engaging via a toothed rod section (34) into a toothing (35) of a drive means assigned to each centring slide, and meshing for their part, on a toothing side (37) parallel to the side with the toothing, with a central toothed wheel (33) arranged concentrically with the rotational axis, wherein the central toothed wheel (33) synchronizes the movements of all the centring slides (27a, b, c).
The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece which rotates about a rotational axis (4) that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis (4) in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate (2), and bear chucking jaws (8a, b, c). The operating characteristics for the central and/or balancing chucking of a tube are improved when each chucking slide (7a, b, c) is assigned firstly transverse slides (9a, b, c) which are provided tangentially to the rotational axis (4) in the head plate (2), are acted upon by an adjusting means and have a slide block (11) formed as a rack (12) on a longitudinal side, and secondly separate toothed wheels (19a, b, c) which mesh with the racks (12), wherein each chucking slide (7a, b, c) is provided on its underside with a driving claw (17) which, in order to deflect the movement of the transverse slide (9a, b, c) in an adjusting movement, extending at right angles to the rotational axis (4), of the chucking slide (7a, b, c), is in engagement with a slot-like guide groove (16) provided in the slide block (11) of the transverse slide (9a, b, c), and wherein the toothed wheels (19a, b, c) are assigned a coupling pinion (20) that can be engaged and disengaged axially with respect to the rotational axis.
