06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Common metals and their alloys; building materials of metal;
buildings, transportable, of metal; metal products, namely
buildings, transportable, of metal, storage containers of
metal, containers of metal for transport; pipes and tubes of
metal; building components of metal for the offshore sector
and hydraulic steelwork, included in this class;
construction pipes of metal for high buildings; ducting
pipes of metal (non-electric) for energy and raw materials;
metallic pipes being parts of pressurised containers, except
machine parts. Engineering pipes of metal (being engineering components);
rigid pipes of metal being parts of machines. Installation of pipe insulation; construction consultancy. Heat treatment of pipes and tubes made of metal; external
and internal treatment of pipes and tubes made of metal,
namely exterior and interior plating. Technical advice relating to building and construction,
technical project studies; technological consultancy and
engineering services; calibration; non-destructive materials
testing related to metal pipes and to pipes of metal.
2.
ROLLER APPLICATION DEVICE FOR APPLYING A COATING LAYER ON THE INNER SIDE OF A LARGE-DIAMETER TUBE
The invention relates to a roller application device for applying a coating layer (11) to the inner side of a carrier layer (10) of a metal large-diameter tube by means of a pressure roller (21), which is mounted, rotatably and by means of a open-loop or closed-loop-controlled force application unit having a piston/cylinder assembly (23), in a pressure section (214) of a rotatable roller application head (20) such that it can be adjusted by exerting a pressure force radially in the X direction, and which is supported by means of a support unit (220) provided therein when rolling the coating layer (11) against the inner side of the large-diameter tube. The piston/cylinder assembly (23) comprising at least one piston/cylinder unit (230, 231) is connected to a reservoir containing hydraulic fluid, in particular hydraulic liquid, via a line assembly (25) having a feed line (250) and a return line (251), wherein, by obtaining a predefined pressure force of the piston/cylinder assembly (23), the hydraulic fluid can be supplied to or discharged from same by means of an open-loop or closed-loop control unit.
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
3.
METHOD AND COATING DEVICE FOR APPLYING A CLADDING LAYER DURING THE PRODUCTION OF A MULTILAYER HEAVY-DUTY PIPE
The invention relates to a method and a coating device for applying a cladding layer onto the inner side of a carrier layer during the production of a multilayer heavy-duty pipe, with a pressure-exerting unit (22) having a force application unit. A stable application of the cladding layer is achieved by having the coating device comprise a rolling tool (2) with the pressure-exerting unit (22) and the force application unit, and by providing the pressure-exerting unit (22) with at least one pressure roller (20) having a diameter that is smaller than the inside diameter of the heavy-duty pipe to be produced, and with at least one support element acting diametrically counter thereto with a supporting force in the operating state.
B21C 37/15 - Making tubes of special shapeMaking the fittings
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
4.
METHOD AND COATING DEVICE FOR APPLYING A CLADDING LAYER DURING THE PRODUCTION OF A MULTILAYER HEAVY-DUTY PIPE
The invention relates to a method and a coating device for applying a cladding layer on the inside of a carrier layer during the production of a multilayer heavy-duty pipe, said device comprising a pressure-exerting unit (22) having a force- application unit. A stable application of the cladding layer is achieved in that the coating device comprises a roll-on tool (2) having the pressure-exerting unit (22) and the force-application unit and in that the pressure-exerting unit (22) is provided with at least one pressure roller (20) that has a smaller diameter than the inside diameter of the heavy-duty pipe to be produced and is provided with at least one support element that diametrically counteracts the pressure roller during operation by means of a supporting force.
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
B21C 37/15 - Making tubes of special shapeMaking the fittings
The invention relates to a method for producing a large multilayer pipe from an outer pipe (1), which forms a carrier layer, and at least one inner pipe (2), which forms a support layer and which is bent from a support plate or is present in seamless form, said method having the following sequence of method steps - providing an undulating inner pipe (20), bent from the support plate, having a continuously rounded wave-like contour (22) which runs transversely to the longitudinal axis of the large pipe and has wave troughs (21) and wave peaks (23) extending continuously over the length of the undulating inner pipe (20), wherein the maximum outer diameter (ODL) of the undulating inner pipe (20) is smaller than the inner diameter (IDT) of the outer pipe (1), - inserting the undulating inner pipe (20) into the outer pipe (1), - widening the undulating inner pipe (20) by means of a radially outwardly acting expansion force, until it adopts a round shape and is wedged in the outer pipe (1) with a force fit once the expansion force has been eliminated, and - subsequent relaxation.
B21C 37/15 - Making tubes of special shapeMaking the fittings
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
The invention relates to a method for producing a multi-layer large pipe, which has an outer carrier layer (1) and at least one inner application layer (2). Advantages regarding productivity and properties of the multi-layer large pipe are achieved by the sequence of the following method steps: - providing a carrier sheet for the carrier layer (1), which carrier sheet is pre-bent to a predetermined initial bending radius (RBO), and at least one application sheet for the application layer (2), which application sheet is pre-bent to a predetermined initial bending radius (RAO); - applying the at least one pre-bent application sheet to the inside of the pre-bent carrier sheet in order to form the carrier layer (1) and the at least one application layer (2), wherein the longitudinal edges of the pre-bent application sheet extending in the direction of the bending axis are positioned and oriented in parallel; - connecting at least the two longitudinal edges (3a, 3b, 3c, 3d) of the at least one application sheet to the carrier sheet in a bonded manner; - shaping the composite of the carrier layer (1) and at least one application layer (2) connected in a bonded manner into a slotted multi-layer large pipe by means of a bending machine, wherein contact regions not connected in a bonded manner are connected in a force-closed manner; - closing the remaining gap of the slotted multi-layer large pipe with a longitudinal seam by welding.
The invention relates to a pipe having a relatively high wall thickness and relatively large diameter, comprising a wall composed of at least two layers made of at least one first and one second metal sheet (1, 2), which are adhesively bonded to each other by means of an interposed binder. A durable composite pipe is obtained in that the bonded connection is manufactured by means of soldering, wherein a solder (3) is introduced between the at least two metal sheets (1, 2).
The invention relates to a method for producing a steel tube, wherein a steel sheet (4) is formed into tubular body (1.2) having a round cross section in a bending process (a), welded in a subsequent welding process (b) along the longitudinal edges facing each other for producing a continuous longitudinal seam, and then subjected to a stress-relieving treatment. The production quality is improved, with reduced production time, in that the stress-relieving treatment is performed in a process (c) for concentrically truing along the circumference in at least one segment relative to the longitudinal axis thereof, while cold forming by compression (Fig. 1). The mechanical technological properties of the material are also thereby improved.
B21C 37/08 - Making tubes with welded or soldered seams
B21D 3/10 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
B21D 5/10 - Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
