CN104525564B - The short route roll former of a kind of three-layer metal composite plate and method - Google Patents
The short route roll former of a kind of three-layer metal composite plate and method Download PDFInfo
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- CN104525564B CN104525564B CN201410622562.XA CN201410622562A CN104525564B CN 104525564 B CN104525564 B CN 104525564B CN 201410622562 A CN201410622562 A CN 201410622562A CN 104525564 B CN104525564 B CN 104525564B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
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Abstract
The short route roll former of a kind of three-layer metal composite plate and method, including frame, rack-mounted two rolls of horizontal Tile, be arranged on the crystallizer above two rolls, be arranged on two tundish above crystallizer and be arranged on centre position the preheating device between two tundish above crystallizer, the center of described crystallizer and preheating device be provided centrally with the oblong channel for sandwich layer metallic plate traverse.Due to the fact that have employed be provided with between crystallizer and two rolls two crystallization cavity and in a crystallizer the heart be provided with the structure of oblong channel for sandwich layer metallic plate traverse, in two crystallization cavity, can make two kinds of clad molten metals be cooled continuously stir into semi solid slurry after be rolled into three-layer metal composite plate with sandwich layer metallic plate direct combination, therefore adopt the present invention to produce three-layer metal composite plate and have the advantages such as the technological process of production is short, composite plate quality is good.
Description
Technical field
The invention belongs to composite metal plate preparing technical field, particularly relate to short route roll former and the method for a kind of three-layer metal composite plate.
Background technology
Three-layer metal composite plate is the composite metal plate of a kind of sandwich structure form of the upper and lower faces other double layer of metal of cladding at sandwich layer metallic plate.It is combined into by metallurgical interface between sandwich layer metal and clad metal, sandwich layer metal and the clad metal of upper and lower faces are different metals, the clad metal of upper and lower faces can be same metal, it can also be different metals, therefore, three-layer metal composite plate combines the performance of two kinds or three kinds metals, is a kind of metallic plate multi-functional, multiduty, can be widely applied to the fields such as automobile, electronic apparatus, metallurgy, chemical industry, space flight and aviation.
The production method of three-layer metal composite plate is presently mainly method hot rolling method, the method is usually the ingot blank first casting out two kinds or three kinds metals, through milling face, heating, the slab of metal is obtained after roughing, then polished in the surface of metal slabs and clean, remove greasy dirt and the oxide skin on surface, according still further to sandwich structure form metal slabs stacked and bind, it is re-fed into milling train after heating and carries out the rolling deformation of multi-pass, finally obtain three-layer metal composite plate, the technological process of production is as follows: ingot casting → milling face → heating → roughing → polish → clean → stack → tie up → hot rolling compound → three-layer metal composite plate.Therefore, the production process of method hot rolling method is many, technological process is long, and material and energy resource consumption are big.
The preparation method that report a lot of ply-metal is also disclosed at present, and such as rolling casting bonding, Explosion composite, jet deposition compound etc., but these methods cannot prepare three-layer metal composite plate within a production cycle.If adopting these methods to prepare three-layer metal composite plate, it is necessary to first to prepare the ply-metal of two-layer, then adopting same method by the ply-metal of two-layer and another kind of metal composite again, finally just can obtain into three-layer metal composite plate.Therefore, adopting these methods to prepare three-layer metal composite plate, same production process is many, technological process is long, and material and energy resource consumption are big.
Summary of the invention
It is an object of the invention to for the deficiency existed in existing three-layer metal composite plate production method, it is provided that the short route roll former of a kind of three-layer metal composite plate and method, belong to a kind of novel semisolid/solid/semi-solid complex method.
It is an object of the invention to realize by following technical scheme:
The short route roll former of three-layer metal composite plate of the present invention, it is characterized in including frame, horizontal Tile and be rotatably arranged in two rolls in frame, it is positioned at the crystallizer on two rolls, it is arranged on crystallizer two tundish horizontal Tile and is arranged on centre position and the preheating device between two tundish above crystallizer, the both sides, top of wherein said crystallizer are each provided with a rectangular runner, the center of crystallizer is provided with an oblong channel, the surrounding of this oblong channel is provided with thermal insulation board, the bottom of described crystallizer is provided with two each cambered surfaces being positioned at the same side with a roll, the lateral part of said two cambered surface is each provided with an arc side seal block being connected with crystallizer one, described each arc side seal block respectively and is positioned at the roll of the same side and contacts and the arc side seal block that makes to be each positioned at the same side with it, a crystallization cavity it has been collectively forming between roll and cambered surface, the upper end of said two crystallization cavity is respectively connected with a runner, roll gap reserved between its lower end with two rolls is connected, and described crystallizer is respectively arranged with cooling water hole on the position of each cambered surface and each roll, it is separately provided for holding the square burner hearth of molten metal in said two tundish, the bottom that described each tundish is positioned at square burner hearth is respectively arranged with a rectangular liquid outlet, described each liquid outlet is respectively connected with a runner, the center of described preheating device is provided with an oblong channel, the both sides of this oblong channel are provided with calandria, and the bottom of this oblong channel is connected with the oblong channel on crystallizer.
The short route roll-forming method of three-layer metal composite plate of the present invention, is characterized in comprising the steps:
The first step: the surface of sandwich layer metallic plate is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer metallic plate sequentially passes through the oblong channel on preheating device and the oblong channel on crystallizer, finally reaches the roll gap of two rolls, is then turn on the power supply of preheating device, sandwich layer metallic plate is preheated, and preheating temperature is 150 ~ 350 DEG C；
3rd step: heat melted a kind of clad molten metal in a smelting furnace or heat melted a kind of clad molten metal in one of them smelting furnace of two smelting furnaces, the melted another kind of clad molten metal of heating in another smelting furnace, and control the temperature of molten metal well at 690 ~ 1550 DEG C；
4th step: starting roll former, one of them of two rolls of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 30 ~ 60 revs/min；
5th step: connecting water valve, make the cooling water hole on crystallizer and two rolls pass into cooling water, the cooling water flow on crystallizer is 5 ~ 15 liters/min, the cooling water flow on two rolls respectively 10 ~ 20 liters/min；
6th step: clad molten metal is respectively transferred in a tundish, the molten metal being positioned at each tundish is respectively flow to a crystallization cavity by the runner being correspondingly arranged on the liquid outlet arranged on tundish and crystallizer respectively, and in two crystallization cavity, clad molten metal is cooled respectively stirs into semi solid slurry, through two roll Rolling compund becomes three-layer metal composite plate after simultaneously entering roll gap with sandwich layer metallic plate after then converging.
The present invention is combined into three-layer metal composite plate with sandwich layer metallic plate Direct Rolling after clad molten metal continuous coo1ing is stirred into semi solid slurry, compared with prior art, there is advantages that
(1) production process reduces, and technological process is shortened.Present invention achieves three-layer metal composite plate a roll forming, and achieve the preparation of clad metal semi-solid slurry and the integration of Rolling compund shaping and serialization, therefore, production process significantly reduces, technological process is substantially shortened, and advantageously reduces the production cost of three-layer metal composite plate；
(2) better quality of three-layer metal composite plate.The invention belongs to semisolid/solid/semi-solid complex method, it is possible not only to realize the metallurgical binding between sandwich layer metal and clad metal, but also can avoid compound interface produces the appearance of the fragility chemical combination such as ferrum aluminum, copper aluminum, such that it is able to improve the interface bond strength of composite plate.The grain structure of semi solid slurry fine uniform can also improve the obdurability of composite plate simultaneously, therefore, adopts three layers prepared by the present invention to belong to the better quality of composite plate；
(3) production is good flexibly.The present invention is adopted to produce three-layer metal composite plate, if the clad molten metal changed in two tundish, various types of three-layer metal composite plate can be produced, such as three-layer metal composite plates such as aluminum/aluminum/aluminum, aluminum/steel aluminum, steel/aluminum/steel, copper/aluminum/copper, therefore, the present invention also has production chains advantage good, adaptable.
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the part section structural representation of the present invention.
Fig. 3 is the plan structure schematic diagram of crystallizer in the present invention.
Fig. 4 be in the present invention crystallizer look up structural representation.
Fig. 5 is the structural representation of preheating device in the present invention.
Fig. 6 is the structural representation of tundish in the present invention.
Fig. 7 is the use status architecture schematic diagram of the present invention.
Detailed description of the invention
As shown in Fig. 1-Fig. 7, the short route roll former of three-layer metal composite plate of the present invention, it includes 1, two rolls of frame, 3, two tundish 4 of 2, crystallizer and a preheating device 10.Said two roll 2 is horizontal Tile and is installed in rotation in frame 1, roll 2 is provided with cooling water hole 5, is reserved with roll gap 23 between two rolls 2, and the width of roll gap 23 is equal to the thickness of three-layer metal composite plate 6.
Described crystallizer 3 is mounted in above two rolls 2, and both sides, crystallizer 3 top are each provided with a rectangular runner 31, and each runner 31 length is equal to the width of three-layer metal composite plate 6.Crystallizer 3 central upper portion position is provided with an oblong channel 11, and the surrounding of this oblong channel 11 is provided with thermal insulation board 8.Crystallizer 3 bottom is provided with two symmetrical and between two runners 31 cambered surfaces 32, the width of each cambered surface 32 is equal to the width of three-layer metal composite plate 6, the cornerite of each cambered surface 32 is 60 ~ 90 °, the radius of each cambered surface 32 adds the thickness of 0.5 ~ 5 times of three-layer metal composite plate equal to the radius of roll 2, and crystallizer 3 is respectively arranged with cooling water hole 5 near the position of each cambered surface 32.The lateral part of said two cambered surface 32 is each provided with an arc side seal block 33 being connected with crystallizer 3 one, the arc radius of each arc side seal block 33 is equal to the radius of roll 2, and the arc cornerite of each arc side seal block 33 is 90 ~ 120 °, as shown in Figure 2, described each arc side seal block 33 respectively and contacts with its roll 2 in the same side and makes to be each positioned at the arc side seal block 33 of the same side, has been collectively forming a crystallization cavity 34 between roll 2 and cambered surface 32, it is to say, be asymmetrically formed two crystallization cavity 34 between crystallizer 3 and two rolls 2.And, the upper end of two crystallization cavity 34 is respectively connected with a runner 31 on crystallizer 3, its lower end is connected with the roll gap 23 of two rolls 2, as shown in Figure 2, the crystallization cavity 34 being positioned at left side is connected with the runner 31 being positioned at left side, and the crystallization cavity 34 being positioned at right side is connected with the runner 31 being positioned at right side.And the width of each crystallization cavity 34 is equal to the width of three-layer metal composite plate 6.
It is arranged on above crystallizer 3 said two tundish 4 horizontal Tile, and its orientation is consistent with the orientation of two rolls 2, the square burner hearth 41 holding molten metal it is provided with in each tundish 4, the bottom that each tundish 4 is positioned at square burner hearth 41 simultaneously is respectively arranged with rectangular liquid outlet 42, the length of each liquid outlet 42 is equal to the width of three-layer metal composite plate 6, and each liquid outlet 42 is respectively connected with a runner 31 on crystallizer 3, as shown in Figure 2, the runner 31 being positioned at left side is connected with the liquid outlet 42 being positioned at left side, the runner 31 being positioned at right side is connected with the liquid outlet 42 being positioned at right side.
Described preheating device 10 is arranged on the centre position above crystallizer 3 and between two tundish 4, preheating device 10 center is provided with an oblong channel 11, these oblong channel 11 both sides are provided with calandria 7, and the oblong channel 11 on preheating device 10 is connected with the oblong channel 11 on crystallizer 3.
The short route roll-forming method of three-layer metal composite plate of the present invention, comprises the steps:
The first step: two surfaces of sandwich layer metallic plate 12 are carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer metallic plate 12 is sequentially passed through the oblong channel 11 on preheating device 10 and the oblong channel 11 on crystallizer 3, finally reach the roll gap 23 of two rolls 2, being then turn on the power supply of preheating device 10, sandwich layer metallic plate 12 is preheated, preheating temperature is 150 ~ 350 DEG C；
3rd step: heat melted a kind of clad molten metal in a smelting furnace or heat melted a kind of clad molten metal in one of them smelting furnace of two smelting furnaces, the melted another kind of clad molten metal of heating in another smelting furnace, and control the temperature of molten metal well all at 690 ~ 1550 DEG C；
4th step: starting roll former, one of them of two rolls 2 of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 30 ~ 60 revs/min；
5th step: connecting water valve, make the cooling water hole 5 on crystallizer 3 and two rolls 2 pass into cooling water, the cooling water flow on crystallizer 3 is 5 ~ 15 liters/min, the cooling water flow on two rolls 2 respectively 10 ~ 20 liters/min；
6th step: clad molten metal is respectively transferred in a tundish 4, the molten metal being positioned at each tundish 4 is respectively flow to a crystallization cavity 34 by the runner 31 being correspondingly arranged on the liquid outlet 42 arranged on tundish 4 and crystallizer 3 respectively, and in two crystallization cavity 34, two kinds of molten metals are cooled respectively and stir into semi solid slurry, through two roll 2 Rolling compund become three-layer metal composite plate 6 after simultaneously entering roll gap 23 with sandwich layer metallic plate 12 after then converging.
The operation principle of the present invention is as follows:
After the clad molten metal in two tundish flows to crystallization cavity respectively, being subject to the cooling effect of crystallizer and roll, molten metal is gradually cooled as it passes through the cooler, and solidification and crystallization, and the solid volume fraction of molten metal is gradually increased.Owing to crystallizer is actionless, and roll is rotary motion, therefore molten metal is the shear agitation effect being constantly subject to rotary roller in crystallization cavity, shear agitation effect makes in molten metal established solid-phase grain that broken and refinement occurs, the semi solid slurry that molten metal is transformed into the solid-phase grain by fine uniform gradually and liquid phase collectively constitutes.In crystallization cavity outlet at bottom position, the semi solid slurry of two kinds of clad metals simultaneously enters roll gap and becomes three-layer metal composite plate through two roll Rolling compund after converging with sandwich layer metallic plate.
The present invention is direct after clad molten metal continuous coo1ing is stirred into semi solid slurry and sandwich layer plates is combined into three-layer metal composite plate, semi solid slurry is stirred in order to ensure that clad molten metal can be cooled, therefore, crystallizer and roll must be provided with cooling water hole, the steel manufacture that crystallizer and roll need use heat shock resistance simultaneously, heat conductivity is good and intensity is higher, such as 3Cr2W8V, W18Cr4V, 4Cr5MoSiV etc., the high speed to ensure crystallizer and roll is dispelled the heat and structural strength.In order to when ensureing Rolling compund, the curdled appearance of clad metal is all semi solid slurry, and obtain there is the three-layer metal composite plate of metallurgical binding, it is necessary to control the cooling water flow in the temperature of molten metal in the preheating temperature of sandwich layer metallic plate, two tundish, the rotating speed of two rolls and two rolls and crystallizer well.
It addition, in order to make roll 2 crystallizer 3 above have better stability, it is possible to by fixing device 9, crystallizer 3 and frame 1 are fixedly connected.In order to make the temperature transferring to the molten metal in each tundish 4 remain unchanged as far as possible, it is possible to arrange calandria 7 in the both sides of two tundish 4 or surrounding, for the molten metal in tundish 4 being heated insulation.It is transferred on crystallizer 3 to prevent the heat of two tundish 4 to be likely to, it is possible between two tundish 4 and crystallizer 3, thermal insulation board 8 is set.In addition, in order to reduce the manufacturing cost of roll, roll 2 can also be designed to the structure being made up of roller core 21 and roller shell 22, and cooling water hole 5 is arranged on roller shell 22, only need roller shell 22 heat shock resistance, heat conductivity is good and intensity is higher steel manufacture just passable.
Embodiment 1:
The present invention is adopted to produce 4005/3003/4005 three layers aluminium alloy compound plate, this three layers aluminium alloy compound plate has the advantage that 4005 Welded performances are good and 3003 corrosion resistance of aluminum alloy are good simultaneously, being usually used in manufacturing the heat exchanger of automobile, electronics, electrical equipment etc., method is as follows:
The first step: the surface of sandwich layer 3003 aluminium alloy plate is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer 3003 aluminium alloy plate is sequentially passed through the oblong channel on preheating device and the oblong channel on crystallizer, finally reach the roll gap of two rolls, being then turn on the power supply of preheating device, sandwich layer metallic plate is preheated, preheating temperature is 200 DEG C；
3rd step: heat melted 4005 aluminum alloy melts in a melting resistance furnace, and control the temperature of 4005 aluminum alloy melts well at 690 DEG C；
4th step: starting roll former, one of them of two rolls 2 of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 60 revs/min；
5th step: connecting water valve, make the cooling water hole 5 on crystallizer 3 and two rolls 2 pass into cooling water, the cooling water flow of two rolls 2 controls at 10 liters/min respectively, and the cooling water flow on crystallizer 3 controls at 5 liters/min；
6th step: 4005 aluminum alloy melts are transferred to respectively in two tundish 4,4005 aluminum alloy melts being positioned at each tundish 4 are respectively flow to a crystallization cavity 34 by the runner 31 being correspondingly arranged on the liquid outlet 42 arranged on tundish 4 and crystallizer 3 respectively, and in two crystallization cavity 34,4005 aluminum alloy melts are cooled respectively stirs into semi solid slurry, becomes the three layers aluminium alloy compound plate 6 of 4005/3003/4005 after then converging with sandwich layer 3003 aluminium alloy plate after simultaneously entering roll gap 23 through two roll 2 Rolling compund.
Embodiment 2:
The present invention is adopted to produce 4005/3003/7002 three layers aluminium alloy compound plate, this three layers aluminium alloy compound plate has 4005 aluminium alloys, 7002 advantages that Welded performance is good and 3003 corrosion resistance of aluminum alloy are good simultaneously, being usually used in manufacturing the heat exchanger of automobile, electronics, electrical equipment etc. equally, method is as follows:
The first step: the surface of sandwich layer 3003 aluminium alloy plate is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer 3003 aluminium alloy plate is sequentially passed through the oblong channel on preheating device and the oblong channel on crystallizer, finally reach the roll gap of two rolls, being then turn on the power supply of preheating device, sandwich layer metallic plate is preheated, preheating temperature is 200 DEG C；
3rd step: heat melted 4005 aluminum alloy melts in a melting resistance furnace, heats melted 7002 aluminum alloy melts in another melting resistance furnace, and controls the temperature of 4005 aluminum alloy melts well at 690 DEG C, and the temperature of 7002 aluminum alloy melts is at 710 DEG C；
4th step: starting roll former, one of them of two rolls 2 of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 60 revs/min；
5th step: connecting water valve, make the cooling water hole 5 on crystallizer 3 and two rolls 2 pass into cooling water, the cooling water flow of two rolls 2 controls at 10 liters/min respectively, and the cooling water flow on crystallizer 3 controls at 5 liters/min；
6th step: 4005 and 7,002 two kind of aluminum alloy melt are transferred in two tundish 4 respectively, the aluminum alloy melt being positioned at each tundish 4 is respectively flow to a crystallization cavity 34 by the runner 31 being correspondingly arranged on the liquid outlet 42 arranged on tundish 4 and crystallizer 3 respectively, and in two crystallization cavity 34,4005 and 7002 aluminum alloy melts are cooled respectively stirs into semi solid slurry, becomes the three layers aluminium alloy compound plate 6 of 4005/3003/7002 after then converging with sandwich layer 3003 aluminium alloy plate after simultaneously entering roll gap through two roll 2 Rolling compund.
Embodiment 3:
The present invention is adopted to produce steel/aluminum/steel three-layer metal composite plate, steel is 304 rustless steels, and aluminum is 6063 aluminium alloys, and this steel/aluminum/steel three-layer metal composite plate is usually used in manufacturing the bottom of a pan of the high-grade cooker such as fume-less cooker, electric cooker, having the advantages such as uniform, the safety and environmental protection of heat transfer, method is as follows:
The first step: the surface of sandwich layer 6063 aluminium alloy plate is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer 6063 aluminium alloy plate is sequentially passed through the oblong channel on preheating device and the oblong channel on crystallizer, finally reach the roll gap of two rolls, being then turn on the power supply of preheating device, sandwich layer metallic plate is preheated, preheating temperature is 150 DEG C；
3rd step: heat melted 304 molten stainless steel in a medium frequency induction melting furnace, and control the temperature of 304 molten stainless steel well at 1550 DEG C；
4th step: starting roll former, one of them of two rolls 2 of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 40 revs/min；
5th step: connecting water valve, make the cooling water hole 5 on crystallizer 3 and two rolls 2 pass into cooling water, the cooling water flow of two rolls 2 controls at 20 liters/min respectively, and the cooling water flow on crystallizer 3 controls at 15 liters/min；
6th step: 304 molten stainless steel are transferred to respectively in two tundish 4,304 molten stainless steel being positioned at each tundish 4 are respectively flow to a crystallization cavity 34 by the runner 31 being correspondingly arranged on the liquid outlet 42 arranged on tundish 4 and crystallizer 3 respectively, and in two crystallization cavity 34,304 molten stainless steel are cooled respectively stirs into semi solid slurry, simultaneously enters after roll gap through two roll 2 Rolling compund Cheng Gang/aluminum/steel three-layer metal composite plates 6 after then converging with sandwich layer 6063 aluminium alloy plate.
Embodiment 4:
The present invention is adopted to produce copper/aluminum/copper three-layer metal composite plate, copper is CuCr1Zr copper alloy, aluminum is 6061 aluminium alloys, this copper/aluminum/copper three-layer metal composite plate has lightweight, plasticity good, price the is low advantage of copper alloy conduction, good heat conductivity and 6061 aluminium alloys simultaneously, it is usually used in manufacturing electric switch, reach with aluminum for copper, reduce the purpose of production cost.Method is as follows:
The first step: the surface of sandwich layer 6061 aluminium alloy plate is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer 6061 aluminium alloy plate is sequentially passed through the oblong channel on preheating device and the oblong channel on crystallizer, finally reach the roll gap of two rolls, being then turn on the power supply of preheating device, sandwich layer metallic plate is preheated, preheating temperature is 350 DEG C；
3rd step: heat melted CuCr1Zr copper alloy liquid in a medium frequency induction melting furnace, and control the temperature of CuCr1Zr copper alloy liquid well at 1150 DEG C；
4th step: starting roll former, one of them of two rolls 2 of control rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 30 revs/min；
5th step: connecting water valve, make the cooling water hole 5 on crystallizer 3 and two rolls 2 pass into cooling water, the cooling water flow of two rolls 2 controls at 15 liters/min respectively, and the cooling water flow on crystallizer 3 controls at 10 liters/min；
6th step: CuCr1Zr copper alloy liquid is transferred to respectively in two tundish 4, the CuCr1Zr copper alloy liquid being positioned at each tundish 4 is respectively flow to a crystallization cavity 34 by the runner 31 being correspondingly arranged on the liquid outlet 42 arranged on tundish 4 and crystallizer 3 respectively, and in two crystallization cavity 34, CuCr1Zr copper alloy liquid is cooled respectively stirs into semi solid slurry, through two roll 2 Rolling compund becomes copper/aluminum/copper three-layer metal composite plate 6 after simultaneously entering roll gap after then converging with sandwich layer 6061 aluminium alloy plate.
The present invention is described by embodiment, but do not limit the invention, with reference to description of the invention, other changes of the disclosed embodiments, as the professional person for this area is readily apparent that, such change should belong within the scope that the claims in the present invention limit.
Claims (5)
1. the short route roll former of a three-layer metal composite plate, it is characterized in that: include frame (1), horizontal Tile and be rotatably arranged in two rolls (2) in frame (1), it is positioned at the crystallizer (3) on two rolls (2), it is arranged on two tundish (4) on crystallizer (3) horizontal Tile and is arranged on crystallizer (3) centre position above and the preheating device (10) being positioned between two tundish (4), the both sides, top of wherein said crystallizer (3) are each provided with a rectangular runner (31), the center of crystallizer (3) is provided with an oblong channel, the surrounding of this oblong channel is provided with thermal insulation board (8), the bottom of described crystallizer (3) is provided with two each cambered surfaces (32) being positioned at the same side with a roll (2), the lateral part of said two cambered surface (32) is each provided with arc side seal block (33) being connected with crystallizer (3) one, described each arc side seal block (33) respectively and is positioned at the roll (2) of the same side and contacts and arc side seal block (33) that makes to be each positioned at the same side with it, a crystallization cavity (34) it has been collectively forming between roll (2) and cambered surface (32), the upper end of said two crystallization cavity (34) is respectively connected with a runner (31), roll gap (23) reserved between its lower end with two rolls (2) is connected, and described crystallizer (3) is respectively arranged with cooling water hole on the position and each roll (2) of each cambered surface (32), it is separately provided for holding the square burner hearth (41) of molten metal in said two tundish (4), the bottom that described each tundish (4) is positioned at square burner hearth (41) is respectively arranged with a rectangular liquid outlet (42), described each liquid outlet (42) is respectively connected with a runner (31), the center of described preheating device (10) is provided with an oblong channel, the both sides of this oblong channel are provided with calandria (7), and the bottom of this oblong channel is connected with the oblong channel on crystallizer (3).
2. the short route roll former of three-layer metal composite plate according to claim 1, it is characterized in that: the arc cornerite of above-mentioned each arc side seal block (33) is 90 ~ 120 °, and the arc radius of each arc side seal block (33) is equal to the radius of roll (2).
3. the short route roll former of three-layer metal composite plate according to claim 1, it is characterized in that: the arc cornerite of above-mentioned each cambered surface (32) is 60 ~ 90 °, and the arc radius of each cambered surface (32) adds the thickness of 0.5 ~ 5 times of three-layer metal composite plate equal to the radius of roll (2).
4. the short route roll former of three-layer metal composite plate according to claim 1, it is characterised in that: the length of above-mentioned each liquid outlet (42), the length of each runner (31), the width of each cambered surface (32) and the length of each oblong channel are equal to the width of three-layer metal composite plate.
5. a short route roll-forming method for three-layer metal composite plate, the method adopts the short route roll former of the three-layer metal composite plate as described in above-mentioned any claim, it is characterised in that: comprise the steps:
The first step: the surface of sandwich layer metallic plate (12) is carried out, removes greasy dirt and the oxide skin on surface；
Second step: sandwich layer metallic plate (12) is sequentially passed through the oblong channel on preheating device (10) and the oblong channel on crystallizer (3), finally reach the roll gap (23) of two rolls (2), it is then turn on the power supply of preheating device (10), sandwich layer metallic plate (12) is preheated, and preheating temperature is 150 ~ 350 DEG C；
3rd step: heat melted a kind of clad molten metal in a smelting furnace or heat melted a kind of clad molten metal in one of them smelting furnace of two smelting furnaces, the melted another kind of clad molten metal of heating in another smelting furnace, and control the temperature of molten metal well at 690 ~ 1550 DEG C；
4th step: start roll former, one of them controlling two rolls (2) rotates clockwise, and another rotates counterclockwise, and rotating speed is identical, and rotating speed is 30 ~ 60 revs/min；
5th step: connecting water valve, make the cooling water hole on crystallizer (3) and two rolls (2) pass into cooling water, the cooling water flow on crystallizer (3) is 5 ~ 15 liters/min, the cooling water flow on two rolls (2) respectively 10 ~ 20 liters/min；
6th step: clad molten metal is respectively transferred in a tundish (4), the molten metal being positioned at each tundish (4) is respectively flow to a crystallization cavity (34) by the runner (31) being correspondingly arranged on the upper liquid outlet (42) arranged of tundish (4) and crystallizer (3) respectively, and in two crystallization cavity (34), clad molten metal is cooled respectively stirs into semi solid slurry, simultaneously enters roll gap (23) and become three-layer metal composite plate (6) by two roll (2) Rolling compund after then converging with sandwich layer metallic plate (12).
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| CN114226663B (en) * | 2020-09-09 | 2023-01-20 | 上海交通大学 | Casting device and casting method |
| CN114101332B (en) * | 2021-11-19 | 2022-07-08 | 河南铜创有色金属科技有限公司 | Method for manufacturing copper-aluminum composite strip by using solid copper and liquid aluminum |
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| CN1836800A (en) * | 2005-03-21 | 2006-09-27 | 孙恩波 | Continuous casting continuous rolling composite metal board and its production method |
| CN102671945A (en) * | 2011-12-25 | 2012-09-19 | 河南科技大学 | Continuous cast-rolling and composite forming device for three-layered metal composite plate by adopting brazing method |
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