The present utility model relates to an air-cooled double-layer material bed capable of recycling waste heat of wear-resistant ball forging, comprising a cooling chamber, a ball passage provided in the cooling chamber, a cooling fan, and a steel ball lifter. According to the present utility model, on the one hand, by providing the double-layer material bed and upper-layer and lower-layer rails, the waste heat of wear-resistant ball forging can be fully used to preheat a cooled wear-resistant ball before entering a secondary heating system, so that the loss and waste of energy are avoided, and the production cost is reduced; on the other hand, rails for cooling and preheating are stacked up and down, so that the space occupied by the rails is reduced, and thus the structure is simple and the implementation is easy.
A heat treatment process for wear-resistant steel balls performed with residual heat from the forging of the wear-resistant steel balls, comprising the following steps: 1) forged wear-resistant steel balls at 800±50 °C are transferred one-by-one to a feed-in end (1a) of a bilevel material bed (1); 2) the wear-resistant steel balls enter from the feed-in end (1a) to a lower-level track (2) and roll freely along the lower-level track (2) towards a first ball outlet end section (2b), at the same time, the temperature of the wear-resistant steel balls is reduced by air cooling to 550±10 °C; 3) the wear-resistant steel balls delivered from the first ball outlet end section (2b) are lifted to a second ball inlet end section (3a) of an upper-level track (3) and roll freely along the upper-level track (3) towards a second ball inlet end section (3a), the upper-level track (3) being divided into two sections, the temperature of the wear-resistant steel balls at the front section being 350±10 °C, and the temperature of the wear-resistant steel balls at the rear section being 200±5 °C; and 4) the wear-resistant steel balls are discharged from the bilevel material bed (1) via an automatic ball discharging unit (D). The steel ball heat treatment process on the one hand utilizes the residual heat from the forging of the wear-resistant steel balls for preheating, thus eliminating loss and wastage of energy and reducing production costs, and on the other hand reduces the footprint of the tracks.
C21D 9/36 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour billesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour galets de roulement
C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
3.
COOLING SYSTEM FOR CONTINUOUS SOLID SOLUTION HEAT TREATMENT OF ALUMINUM COILED STRIP
The present utility model relates to a cooling system for continuous solid solution heat treatment of an aluminum coiled strip. The cooling system comprises a rapid cooling chamber in communication with a solid solution furnace, and a water cooling device, an air cooling device and an air exhaust device, which are arranged in the rapid cooling chamber, wherein the water cooling device comprises a plurality of water spray units, which are in communication with one another and are distributed above and below an aluminum strip at intervals, and a water supply unit. According to the present utility model, by means of combining air cooling with water cooling, it can be ensured that water and hot air cannot enter a heating area of the solid solution furnace; moreover, the aluminum strip is rapidly and smoothly cooled and shaped by combining density distribution of the water spray units, the angles of nozzles and an acting force applied to the aluminum strip. In addition, the surface of the aluminum strip is air-dried, and thus, it is ensured that there are no residual water stains.
The present utility model relates to an air cushion generator of a furnace for continuous solution heat treatment of a coiled aluminum strip. The air cushion generator comprises a plurality of air cushion generation units distributed in a heating area in sequence, wherein each air cushion generation unit comprises an upper air blowing box, a lower air blowing box, a fan, and an air duct; the plurality of upper air blowing boxes and the plurality of lower air blowing boxes are staggered with and spaced apart from each other, and are distributed at extreme value positions in a shape of a sine or cosine graph; the upper air blowing boxes each has a cavity formed narrowing from one end part to the other and has a rectangular bottom surface, and upper air inlet holes are located at the end parts of the cavities having a larger space and are communicated with the air duct; upper air blowing holes are distributed in an array on the bottom surface of each upper air blowing box; each lower air blowing box is in a cuboid shape, and lower air inlet holes are located at one end of the cuboids and are communicated with the air duct; and the lower air blowing holes are distributed in an array on the top surface of each lower air blowing box. The present utility model can ensure that the aluminum strip in an aluminum strip conveying passage is stressed and heated uniformly and does not deform, and can also implement continuous solution heat treatment of the entire coiled aluminum strip.
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
5.
HEAT SHIFTING APPARATUS FOR FORGING WASTE HEAT OF WEAR-RESISTANT STEEL BALL
A heat shifting apparatus for forging waste heat of a wear-resistant steel ball, comprising a cooling area (A), a feeding unit (C) provided between a wear-resistant steel ball forging machine (B) and the cooling area (A), an automatic ball arrangement unit (D), and a steel ball lifter (T). According to the heat shifting apparatus, on one hand, by means of the arrangement of a double-layer material bed (1), an upper-layer track (3), and a lower-layer track (2), the forging waste heat of the wear-resistant steel ball can be fully utilized to preheat the wear-resistant steel ball before entering a secondary heating system after cooling, thereby avoiding the loss and waste of energy, and reducing the production cost; and on the other hand, the tracks used for cooling and preheating are stacked up and down, so that the occupied space of the tracks is reduced, the structure is simple, and implementation is convenient.
Disclosed is a hoisting machine for wear-resistant ball production. The hoisting machine comprises a vertically extending hoisting track (1), a hoisting hopper (2) arranged on the hoisting track (1) in a sliding manner, a driver (3) driving the hoisting hopper (2) to move up and down along the hoisting track (1), and an automatic ball unloading assembly (4) arranged on a ball receiving track (J), wherein the hoisting hopper (2) comprises a hoisting seat (20), which can move up and down and is arranged on the hoisting track (1), and a hoisting hopper body (21), which is arranged on the hoisting seat in a manner of flipping in the horizontal direction. The automatic ball unloading assembly (4) fits with the hoisting hopper body (21), and during moving up and down in an unloading area formed by the corresponding automatic ball unloading assembly (4), the hoisting seat (20) drives the hoisting hopper (2) to perform flipping unloading or flipping resetting. By means of the hoisting machine, the hoisting of wear-resistant steel balls is completed by means of the vertical movement of the single hoisting hopper, and the hoisting hopper can automatically perform flipping unloading and resetting actions during the vertical movement process. The hoisting machine is simple in terms of operation and conveniently implemented; and there is no no-load state, thereby saving on costs.
B65G 47/40 - Dispositifs pour décharger les objets ou matériaux des transporteurs en basculant, renversant ou dégageant les porte-charges en basculant les godets de transporteurs
B65G 65/23 - Dispositifs pour basculer et vider les réceptacles
7.
AIR CUSHION AND ROLLER INTEGRATED CONTINUOUS SOLUTION HEAT TREATMENT APPARATUS AND PROCESS FOR ALUMINUM STRIP ROLL
An air cushion and roller integrated continuous solution heat treatment apparatus for an aluminum strip roll, comprising a solution heat treatment furnace (1), an air cushion generator (2), a cooling system (3), transmission rollers (4), and an auxiliary strip guiding system (5). Also provided is a continuous solution heat treatment process using the apparatus. By means of the cooperation between an air cushion and transmission rollers, the solution heat treatment of an aluminum strip having a thickness of 0.2-15 mm can be satisfied; meanwhile, by means of the layout formed by upper and lower air spraying boxes (q1, q2), the distribution of upper and lower air spraying holes (q10, q20), and the shapes of the upper and lower air spraying boxes, equal stress and uniform heat for the aluminum strip in an aluminum strip transmission channel are ensured, and no deformation is generated. On the other hand, by means of the combination of air cooling and water cooling, it can be ensured that water and hot air do not move into a heating area of the solution heat treatment furnace; meanwhile, by combining the density of distribution of water spraying units (20), the angle of nozzles, and a uniform acting force on the aluminum strip, the aluminum strip can be quickly and smoothly cooled; in addition, air drying of the surface of the aluminum strip ensures that no water stain is remained.
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
8.
CONTINUOUS TAKT TYPE HEAT TREATMENT FURNACE FOR BAR
The present invention relates to a continuous takt type heat treatment furnace for a bar, comprising a furnace body, a one-by-one bar feeding system, and a one-by-one bar discharging system. A plurality of heat treatment rails parallel to each other and distributed at intervals are provided in the furnace body. Upper surfaces of the plurality of heat treatment rails are flush with each other and form a slope surface inclining from top to bottom. The one-by-one bar discharging comprises a material blocking module, jacking and discharging units, and a furnace discharging unit. According to the present invention, on the one hand, the heat treatment rails on the slope surface are arranged, so that it is convenient for the bar to freely roll, the thermal short circuit caused by the use of a movable beam is avoided, and the furnace is stable, energy-saving, and uniform in heating; at the same time, during the free roll process of the bar, the high temperature deformation of the bar due to the gravity can be effectively avoided; on the other hand, the continuous takt type heat treatment can be performed on the bar one by one; moreover, the interference or collision of other bars when the bar is discharged and fed can be avoided to ensure the quality of the heat treatment performance of the bar, and the thermal deformation of a jacking rod member can also be prevented.
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27D 9/00 - Refroidissement des fours ou des charges s'y trouvant
F27D 3/12 - Supports ou réceptacles pour charges, mobiles ou à translation
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
9.
BAR MATERIAL DISCHARGING SYSTEM OF CONTINUOUS BEAT-TYPE HEAT TREATMENT FURNACE
A bar material discharging system (C) of a continuous beat-type heat treatment furnace (A), comprising a blocking module (1) provided at the tail end of each heat treatment rail (G) to block the movement of bar materials (P), two or more groups of jacking and discharging units (2) distributed in a staggered manner relative to the plurality of heat treatment rails (G), and a furnace discharging unit (3) provided at an outlet of the heat treatment furnace (A). On the one hand, single bar material taking regions are formed by staggered jacking modules (20) and corresponding blocking grooves, avoiding interference or collision of other bar materials (P) when the bar materials (P) are taken and conveyed, and achieving continuous beat type feeding of the bar materials (P) one by one, preventing the thermal deformation of an ejector rod (210) during the cooling of the ejector rod (210), and improving the stability of the lifting movement of the ejector rod (210); and on the other hand, the discharging of the bar materials (P) is implemented on one side or the end portion of the heat treatment furnace (A), being convenient to implement, not affecting the atmosphere inside the furnace, and ensuring the heat treatment quality of the bar materials (P).
F27B 17/00 - Fours d'un genre non couvert par l'un des groupes
F27D 19/00 - Aménagement des dispositifs de commande
C21D 9/08 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour corps tubulaires ou tuyaux
F27D 3/12 - Supports ou réceptacles pour charges, mobiles ou à translation
10.
CONTINUOUS BEAT PUSH HEAT TREATMENT PROCESS OF BARS
The present invention relates to a continuous beat push heat treatment process of bars, comprising the following steps: 1) a bar by bar feeding process; 2) a bar by bar heating process, which enables the bars to freely roll from the top part of a slope surface formed by a plurality of heat treated tracks to the bottom part thereof, and sequentially pass through a preheating cavity and a heating cavity; and 3) a bar by bar discharging process, which enables the single bars to freely roll, under the jacking of a jacking and discharging unit, towards a furnace discharging unit after being jacked up, and to then be conveyed out of a heat treatment furnace from one side or an end part of the heat treatment furnace, and meanwhile after jacking reset, the bars roll down for position compensation. In one aspect, the present invention prevents thermal short circuits from being generated, is stable and energy-saving, and heating is uniform, and at the same time can also effectively prevent the high-temperature deformation of bars caused by gravity; and in another aspect, continuous beat type heat treatment of the bars may be implemented, and at the same time interference or collision of other bars caused when removing and conveying the bars may be avoided, so as to ensure the quality of the heat treatment performance of the bars; in addition, heat deformation of a jacking rod piece may be prevented.
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27D 9/00 - Refroidissement des fours ou des charges s'y trouvant
F27D 3/12 - Supports ou réceptacles pour charges, mobiles ou à translation
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
11.
SEALED FURNACE ROLLER ASSEMBLY FOR FULL-HYDROGEN ROLLER-HEARTH FURNACE
A sealed furnace roller assembly for a full-hydrogen roller-hearth furnace, comprising a furnace roller (2), a driving member (3) used for driving the furnace roller (2) to rotate around its own axis, and a sealing assembly (4). The furnace roller (2) comprises a hollow roller body (20) located in a heat treatment furnace (1), roller sleeves (21) extending to the outside of the furnace from the two ends of the roller body (20) and having the outer diameters gradually reduced, and roller shafts (22) respectively connected to the ends of the roller sleeves (21) away from the roller body (20) and rotatably disposed on side walls of the heat treatment furnace (1); one of the roller shafts (22) passes out of the heat treatment furnace (1) from one end to be connected to the driving member (3); a connection end between each roller sleeve (21) and the roller body (20) covers the periphery of the roller body (20) to form a stop portion (2a); a workpiece transfer area is formed between the stop portions (2a) at the two ends of the roller body (20), and the workpiece transfer area is located between the inner walls of the heat treatment furnace (1) on the corresponding opposite sides. Heat conduction from the furnace roller (2) to the outside of the furnace, heat energy loss, the weight of the furnace body itself, and the probability of bending and deformation are reduced, and the life of the furnace roller is prolonged; moreover, collision or friction between a workpiece and the inner wall of the heat treatment furnace (1) is prevented.
Disclosed is a cleaning apparatus for the heat treatment of bearing micro steel balls. The cleaning apparatus comprises a rack (1), a cleaning tank (2) butt-jointed with a discharge end part of a steel ball quenching system, an oil-water separator (3), a circulation system (4) for circulating separated water to the cleaning tank (2), a conveying system (5) for conveying steel balls from the cleaning tank (2) to a tempering furnace, a first vibrator (6) and a second vibrator (7) arranged at the discharge end part of the steel ball quenching system and a discharge end part of the conveying system respectively, a heater (8) arranged in the cleaning tank (2) and used for heating a cleaning fluid, and a temperature controller, wherein the temperature controller controls the temperature of the cleaning fluid located in the cleaning tank (2) to be 45±5°C. According to the apparatus, on the one hand, the occurrence of ball adhesion and ball mixing phenomena is eliminated by means of the vibration manner for the vibrators, and on the other hand, grease on the surfaces of steel balls is more easily removed by means of a heated cleaning fluid, thereby improving the cleaning effect.
B08B 3/10 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p. ex. par la chaleur, par l'électricité ou par des vibrations
B08B 3/14 - Enlèvement des déchets, p. ex. des étiquettes, se trouvant dans le liquide de nettoyage
B08B 13/00 - Accessoires ou parties constitutives, d'utilisation générale, des machines ou appareils de nettoyage
C21D 9/36 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour billesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour galets de roulement
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
13.
DUAL-STATION WASTE HEAT UTILIZATION AND AUTOMATIC PRODUCTION LINE FOR BEARING STEEL WIRE COIL
A dual-station waste heat utilization and automatic production line for a bearing steel wire coil, comprising two heat treatment furnaces (1), wherein each heat treatment furnace (1) is provided with a smoke discharging channel (2). The automatic production line comprises: a first communication tube (3) and a second communication tube (4) that are respectively communicated with the furnace bodies (11) of the two heat treatment furnaces (1), a flange (5) used for communicating the end parts of the first communication tube (3) and the second communication tube (4) distant from the furnace bodies (11), and an electromagnetic valve (6), wherein an energy transfer channel is formed after the first communication tube (3) is communicated with the second communication tube (4); the electromagnetic valve (6) controls the turn-on/off of the energy transfer channel; moreover, the electromagnetic valve is linked with the control valves (20) of the smoke discharging channels (2), and when one of the two smoke discharging channels (2) is in a smoke discharging state and the other one is in a closed state, the electromagnetic valve (6) is opened, the energy of the heat treatment furnace (1) with the closed smoke discharging channel (2) flows into the heat treatment furnace (1) with the opened smoke discharging channel (2); when the two smoke discharging channels (2) are both in an opened state, the electromagnetic valve (6) is in the closed state. The dual-station waste heat utilization and automatic production line for the bearing steel wire coil can realize energy transfer between the two heat treatment furnaces (1), fully reduces energy consumption, and reduces the costs.
A continuous-heat-treatment rotary-drum-type heating furnace special for bearing steel balls, comprising a furnace body (1) provided with a feeding end portion (10) and a discharging end portion (11); a rotary drum (2) rotatably disposed in the furnace body (1) around the axis line extending in the horizontal direction; helical flow guide parts (3) disposed on the inner wall of the rotary drum (2) and helically distributed along the length direction of the rotary drum (2); heating assemblies (4) located between the outer side of the rotary drum (2) and the inner wall of the furnace body (1); and a driving assembly (5) used for driving autorotation of the rotary drum (2). The feeding end portion (10) is located at one end of the furnace body (1) and transfers steel balls to feeding ends of the helical flow guide parts (3) by means of a screw feeder (b); the discharging end portion (11) is located at the other end of the furnace body (1) and is communicated with discharging ends of the helical flow guide parts (3). When continuous production is satisfied, a helical transfer mode is used, in which steel balls are transferred from the feeding end portion (10) to the discharging end portion (11) in a rolling process, so that the steel balls are heated more uniformly and thus the quality of steel ball heat treatment is improved. In addition, the yield is increased significantly, the difference between inner structures of the steel balls is little, and the quality is stable.
C21D 9/36 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour billesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour galets de roulement
C21D 1/74 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes
15.
DUAL-LAYER ISOTHERMAL SPHEROIDIZING ANNEALING HEAT TREATMENT DEVICE FOR BEARING STEAL BAR PIPE MATERIAL
A dual-layer isothermal spheroidizing annealing heat treatment device for bearing steal bar pipe material, comprising: a furnace body (1), the furnace body (1) being divided into a centrally-located heating and holding zone (13), and, sequentially and symmetrically arranged on either side of the heating and holding zone (13) from near to distant, intermediate cold zones (12, 14), isothermal zones (11, 15), and heat exchange zones (10, 16); a furnace roller assembly (2), comprising upper and lower furnace roller sets (20, 21); and a cooler (3) comprising upper and lower cooling units (30, 31). The upper cooling unit (30) comprises a circulating fan (30a), a flow guide tube (30b), and an exhaust pipe (30c), airflow expelled from the exhaust pipe exchanging heat with bearing steel bar pipe material on the lower furnace roller set (21) and then flowing to the upper furnace roller set (20) and continuously absorbing heat, and then flowing to the lower roller set (21) and performing heat exchange, forming a circulating airflow. The lower cooling unit (31) comprises a heat exchange pipe (31a), a fan (31b), and an exhaust pipe (31c). The present heat treatment device, under the condition of utilizing surplus heat, shortens the cooling time in the intermediate cold zones (12, 14), guarantees heat treatment time in the isothermal zones (11,15), and improves heat treatment quality, while also rapidly carrying away heat energy by means of a flowing airflow, thereby allowing for rapid cooling of the bearing steel bar pipe material.
C21D 1/32 - Recuit d'adoucissement, p. ex. sphéroïdisation
C21D 9/08 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour corps tubulaires ou tuyaux
16.
BEARING STEEL BALL SPECIAL CONTINUOUS HEAT TREATMENT DRUM-TYPE PRODUCTION LINE AND PROCESS
A bearing steel ball special continuous heat treatment drum-type production line and process. The production line comprises: a drying device (B); a drum type heating furnace (D) comprising a furnace body (1), a drum (2), a spiral flow guide part (3), a heating assembly (4) and a driving assembly (5), wherein a feed end (10) is located at one end of the furnace body (1), steel ball blanks are fed to the feed end of the spiral flow guide part (3) by means of a spiral feeder (b), and a discharge end (11) is located at the other end of the furnace body (1) and is communicated with the discharge end (11) of the spiral flow guide part (3); a steel ball blank quenching system (E); a cleaning machine (F); and a tempering furnace (G), wherein the cleaning machine (F) comprises a rack (F1), a cleaning tank (F2), an oil-water separator (F3), a circulating system (F4) used for circulating separated water to the cleaning tank (F2), a conveying system (F5), a first oscillator (F6), a second oscillator (F7), a heater (F8), and a temperature controller; and the temperature controller controls the temperature of cleaning fluid in the cleaning tank (F2) to 45±5°C. On one hand, the output is increased, and the quality is stable on the premise of implementing continuous heat treatment on steel balls; on the other hand, the phenomena of ball adhering and ball mixing are avoided, and the cleaning effect can also be improved.
C21D 9/36 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour billesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour galets de roulement
C21D 1/74 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes
17.
PURE-HYDROGEN BRIGHT SOLUTION HEAT TREATMENT ROLLER-HEARTH FURNACE FOR HIGH-TEMPERATURE NICKEL-BASED ALLOY PIPES AND PROCESS
A pure-hydrogen bright solution heat treatment roller-hearth furnace for high-temperature nickel-based alloy pipes and a process. Said roller-hearth furnace comprises a feeding rollerway (1), a drying chamber (2), an inlet sealing chamber (3), a pre-heating channel (4), a heating chamber (5), an air cooling chamber (6), a water cooling chamber (7), an outlet sealing chamber (8), a discharge rollerway (9), and a protective atmosphere system (10); the heating chamber (5) comprises a chamber body (5A) and a furnace roller assembly (5B), the furnace roller assembly (5B) comprising a transverse furnace roller (2B), a driving member (3B), and a sealing assembly (4B); said furnace roller (2B) comprises a hollow roller body (20), roller sleeves (21), and roller shafts (22), one roller shaft (22) penetrating the chamber body (5A) from one end and being connected to the driving member (3B), the end of each roller sleeve (21) connecting the roller body (20) surrounding the periphery of the roller body (20) and forming a blocking part (2a), a workpiece conveying area being formed between the blocking parts (2a) at both ends of the roller body (20), and the workpiece conveying area being located between two opposite inner walls of the chamber body (5A). Said roller-hearth furnace reduces the heat conduction from the furnace roller to the outside of the furnace, reduces the weight of the furnace itself, reduces the bending deformation probability, prolongs the life of the furnace roller, and also prevents the occurrence of workpiece collision or friction, and has a high volume of production and low cost.
C22F 1/10 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du nickel ou du cobalt ou de leurs alliages
C22F 1/02 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid en atmosphère neutre ou contrôlée ou dans le vide
C21D 9/08 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour corps tubulaires ou tuyaux
18.
SPECIALIZED NUCLEAR-GRADE ZIRCONIUM PLATE ROLLING AND QUENCHING HEAT TREATMENT CONTINUOUS PRODUCTION LINE AND PROCESS THEREFOR
Disclosed are a specialized nuclear-grade zirconium plate rolling and quenching heat treatment continuous production line and a process therefor. The production line comprises a rolling system (A) and a quenching system (B). The rolling system (A) involves a rolling heating furnace (A1), and a rolling mill (A2), wherein a zirconium plate can move back and forth in a heating area (1b) of the rolling heating furnace; and the quenching system (B) comprises a heating furnace (B1), a rapid quenching device (B2) arranged at an outlet of the heating furnace, and a traversing roller way (B3) arranged at the outlet of the heating furnace and communicating with a conveying roller way, towards the rolling mill, of the rolling heating furnace. By means of the production line and process, on the one hand, the processes of rolling and quenching are directly coupled, so that continuous processing is realized; and on the other hand, through the arrangement of a temperature area of a furnace roller assembly in the heating furnace, the length of the whole furnace body is shortened, the equipment structure is simplified, and the cost and the energy consumption are reduced.
A continuous heat treatment furnace dedicated to a nuclear-grade zirconium plate or zirconium tube, comprising a furnace body and a furnace roller assembly provided in the furnace body, wherein the furnace body comprises a feeding zone, a heating zone, and a discharge zone, and the furnace roller assembly comprises first, second, and third furnace roller groups; first, second, and third driving members, which drive the first, second, and third furnace roller groups respectively so as to convey a zirconium plate or zirconium tube to move inside of the furnace body; and a PLC control system, which issues movement instructions to the first, second, and third driving members respectively so as to control the conveyance speed and conveyance direction of each furnace roller group, wherein when the zirconium plate or zirconium tube is located in the heating zone, the second furnace roller group drives the zirconium plate or zirconium tube to move back and forth in the heating zone, and after being directly heated, the third furnace roller group conveys the zirconium plate or zirconium tube out of the furnace body. The present continuous heat treatment furnace may shorten the length of the whole furnace body and simplify the structure of the heat treatment furnace while reducing the usage costs. On the premise of fulfilling the conveyance of the zirconium plate or zirconium tube, each furnace roller group is independently driven, thereby reducing energy consumption.
brevets