CN114985690A - Casting and rolling equipment for producing copper-aluminum composite board and casting and rolling process thereof - Google Patents
Casting and rolling equipment for producing copper-aluminum composite board and casting and rolling process thereof Download PDFInfo
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- CN114985690A CN114985690A CN202210600127.1A CN202210600127A CN114985690A CN 114985690 A CN114985690 A CN 114985690A CN 202210600127 A CN202210600127 A CN 202210600127A CN 114985690 A CN114985690 A CN 114985690A
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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
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
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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
- B22D11/007—Continuous casting of metals, i.e. casting in indefinite lengths of composite ingots, i.e. two or more molten metals of different compositions being used to integrally cast the ingots
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of casting and rolling equipment, and discloses casting and rolling equipment for producing a copper-aluminum composite plate, which comprises a shell, an upper compression roller and a copper-aluminum composite plate, wherein a liquid cavity is formed in the upper compression roller, a pressing plate is fixedly sleeved on the outer surface between the fixed roller and the upper compression roller, a returning groove is formed in the pressing plate, a through groove is formed in the top surface of the returning groove and one side close to the upper compression roller, an exhaust hole is formed in the side surface of the pressing plate and positioned at the upper part of the returning groove, an exhaust groove is formed in the shell and at the position corresponding to the exhaust hole, and a baffle is movably hinged to the lower surface of the pressing plate and positioned right above the lower compression roller. According to the invention, liquid nitrogen enters the return-type groove through the water outlet and the through groove, so that the bottom of the pressing plate can cool the upper surface of the copper-aluminum composite plate, the cooling of the upper part and the lower part of the copper-aluminum composite plate can be ensured, the cooling uniformity of the composite plate is improved, and the segregation condition of the composite plate due to uneven cooling is effectively prevented.
Description
Technical Field
The invention relates to the technical field of casting and rolling equipment, in particular to casting and rolling equipment for producing a copper-aluminum composite plate and a casting and rolling process thereof.
Background
With the rapid development of new energy automobiles, the requirements of the new energy automobiles on batteries are gradually improved, the copper-aluminum composite plates are used as important parts in the battery pack, the demand is greatly increased, and meanwhile, the quality requirements on the copper-aluminum composite plates are also gradually improved.
The copper-aluminum composite board is used as a part in a battery pack, the main production mode is casting, the casting process is to cast a copper-aluminum mixed liquid by using two opposite compression rollers, and in the casting process, only the lower compression roller can cool the copper-aluminum solution (casting and rolling at the same time for enabling the copper-aluminum solution to be rapidly molded), so that the copper-aluminum composite board is cooled from bottom to top, the cooling speed of the composite board is inconsistent, the segregation condition can appear on the surface or the center of the composite board, the quality of the composite board is influenced, meanwhile, after the copper-aluminum solution forms the composite board, the temperature of the composite board can not be rapidly reduced, the aluminum element inside the composite board is easy to react with oxygen in the air to form aluminum oxide when being heated, and the quality of the composite board is influenced.
Disclosure of Invention
Aiming at the defects of the existing casting and rolling equipment in the use process in the background technology, the invention provides the casting and rolling equipment for producing the copper-aluminum composite plate and the casting and rolling process thereof, which have the advantages of increasing the cooling uniformity of the composite plate, reducing the probability of the strip segregation of the composite plate, reducing the oxidation probability of aluminum in the composite plate, adjusting the position of the deviated composite plate, avoiding the phenomenon that the surface of the composite plate presents extrusion lines due to the uneven compression of the composite plate, and solving the technical problems in the background technology.
The invention provides the following technical scheme: a casting and rolling device for producing copper-aluminum composite boards comprises a shell, a pouring nozzle, a pouring channel, a lower compression roller, an upper compression roller and a copper-aluminum composite board, a liquid cavity is arranged inside the upper press roller, a water outlet is arranged at the bottom of the liquid cavity, a water inlet hole is arranged on the side surface of the upper press roller and positioned at the middle upper part of the water outlet, a fixed roller is fixedly connected with the inner cavity of the shell and positioned at the rear side of the upper compression roller, a pressing plate is fixedly sleeved on the outer surface between the fixed roller and the upper compression roller, a returning groove is arranged inside the pressing plate, a through groove is arranged on the top surface of the returning groove and on one side close to the upper pressing roller, the side surface of the pressure plate and the upper part of the returning groove are provided with exhaust holes, the inside of the shell and the corresponding part of the exhaust holes are provided with exhaust grooves, the lower surface of the pressing plate is movably hinged with a baffle right above the lower pressing roller, and an air outlet hole is formed in the baffle.
Preferably, the liquid cavity is communicated with the cavity outside the upper pressing roller through a water outlet, a pipeline for conveying liquid nitrogen is connected to the outer side of the water inlet hole, the pressing plate is fixed on the outer surfaces of the fixed roller and the upper pressing roller in a transmission belt shape, the outer surface of the bottom of the pressing plate is in contact with the upper surface of the copper-aluminum composite plate, and the pressing plate has good heat conduction performance.
Preferably, the returning groove is communicated with a cavity outside the upper compression roller through a through groove, the exhaust hole is communicated with the exhaust groove, the position of the lower opening of the exhaust groove corresponds to the position of the baffle, and the position of the air outlet hole is flush with the position of the lower opening of the exhaust groove.
Preferably, the number of the baffle plates is two, the two baffle plates are respectively positioned on two sides of the copper-aluminum composite plate and under the upper press roller, and the air outlet transversely penetrates through the whole baffle plate.
Preferably, the number of the exhaust holes, the exhaust grooves and the baffle plates is two, and the axial centers of the more than one press roll are symmetric centers.
A casting and rolling process for producing a copper-aluminum composite board comprises the following steps:
firstly, injecting a copper-aluminum solution into a cavity formed among a pouring nozzle, a lower pressing roller and a pressing plate by using a pouring channel, starting equipment, driving the lower pressing roller to rotate and cooling the copper-aluminum solution, and driving the copper-aluminum solution to form a copper-aluminum composite plate by using the lower pressing roller and the pressing plate;
injecting liquid nitrogen into the liquid cavity through the water inlet hole, enabling the liquid nitrogen to enter the inner cavity of the pressing plate through the water outlet and enter the returning groove through the groove, and enabling the temperature of the pressing plate to be reduced and cooling the copper-aluminum composite plate by utilizing the liquid nitrogen;
a third step; the liquid nitrogen is promoted to be vaporized to generate nitrogen through the temperature of the copper-aluminum composite plate, and meanwhile, the nitrogen enters the exhaust groove through the exhaust hole in the top of the returning groove and is finally discharged around the copper-aluminum composite plate through the exhaust hole;
fourthly, using the pressure generated when the liquid nitrogen is vaporized to promote the nitrogen to be sprayed out through the lower opening of the exhaust groove and push the two baffles to be attached to the side surface of the copper-aluminum composite plate, thereby ensuring that the copper-aluminum composite plate can not deviate;
fifthly, when the position of the copper-aluminum composite plate deviates to the right side, the copper-aluminum composite plate can also push the movable baffle to deviate to the right side, so that the volume of a cavity formed between the right side baffle and the shell is reduced, nitrogen gas continuously enters the cavity at the moment, the pressure of the nitrogen gas in the cavity formed between the right side baffle and the shell is increased, the movable baffle is pushed to the left to reset, and the copper-aluminum composite plate after deviation is enabled to reset through the baffle.
The invention has the following beneficial effects:
1. according to the invention, by designing the liquid cavity, the fixed roller, the pressing plate, the returning groove and the through groove, liquid nitrogen is continuously filled into the liquid cavity through the water inlet hole, and the liquid nitrogen in the liquid cavity enters the returning groove through the water outlet and the through groove, so that the bottom of the pressing plate can cool the upper surface of the copper-aluminum composite plate, the cooling of the upper part and the lower part of the copper-aluminum composite plate can be ensured, the cooling uniformity of the composite plate is improved, and the segregation condition of the composite plate due to uneven cooling is effectively prevented.
2. According to the invention, by designing the liquid cavity, the fixed roller, the pressing plate, the return groove, the through groove, the exhaust hole and the exhaust groove, when the composite plate is cooled by liquid nitrogen in the return groove, the heat of the composite plate is utilized to promote the liquid nitrogen to be vaporized to generate nitrogen, the nitrogen is continuously generated along with the generation of the nitrogen, the nitrogen enters the exhaust groove through the exhaust hole and is finally discharged around the copper-aluminum composite plate, so that the copper-aluminum solution is surrounded by the nitrogen after the composite plate is formed, and the nitrogen belongs to inert gas, thereby effectively preventing aluminum elements in the composite plate from being oxidized.
3. The invention uses the pressure generated when the liquid nitrogen in the returning type groove is converted into nitrogen to drive the nitrogen to be discharged through the vent hole and the vent groove by designing the liquid cavity, the fixed roller, the pressure plate, the returning type groove, the through groove, the vent hole, the vent groove, the baffle plate and the vent hole, and the baffle plates at the two sides of the composite board are pushed to be jointed with the composite board, when the position of the composite board deviates (such as to the right side), the baffle plate on the right side is pushed by the composite plate to deflect towards the right side, at the moment, the space formed between the baffle plate on the right side and the shell is reduced, nitrogen continuously enters to promote the pressure of the nitrogen on the right side to be gradually increased, and then the top is moved the baffle and is squinted left and drive the position of copper aluminium composite sheet and squint left gradually and reset, realized the compound board position after excursion and reset, avoid the compound board position after excursion receive the pressure inhomogeneous lead to its surface appear extrude the line influence composite sheet's quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a cut-away internal perspective structure of the platen of the present invention;
FIG. 3 is a schematic view of the rear side of the platen according to the present invention;
FIG. 4 is a schematic cross-sectional view of the joint between the pressing plate and the housing according to the present invention;
fig. 5 is a schematic diagram of a composite plate offset structure according to the present invention.
In the figure: 1. a housing; 2. a pouring nozzle; 3. pouring a channel; 4. a lower pressing roller; 5. an upper compression roller; 51. a liquid chamber; 52. a water outlet; 53. a water inlet hole; 54. a fixed roller; 55. pressing a plate; 551. a returning groove; 552. a through groove; 553. an exhaust hole; 554. an exhaust groove; 56. a baffle plate; 57. an air outlet; 6. copper-aluminum composite board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a casting and rolling device for copper-aluminum composite board production includes a housing 1, a pouring nozzle 2 is fixedly mounted on the middle upper portion of the right side surface of the housing 1, a pouring channel 3 is formed inside the pouring nozzle 2, a lower press roller 4 is movably mounted in the inner cavity of the housing 1 and located at the lower left corner of the pouring nozzle 2, an upper press roller 5 is fixedly mounted in the inner cavity of the housing 1 and located at the upper left corner of the pouring nozzle 2, a casting and rolling cavity is formed between the pouring nozzle 2, the lower press roller 4 and the upper press roller 5, and a molded copper-aluminum composite board 6 is placed between the lower press roller 4 and the upper press roller 5.
Referring to fig. 1-5, a liquid chamber 51 is formed inside the upper pressing roller 5, a water outlet 52 is formed at the bottom of the liquid chamber 51, a water inlet 53 is formed in the side surface of the upper pressing roller 5 and located at the middle upper portion of the water outlet 52, a fixed roller 54 is fixedly connected to the inner cavity of the casing 1 and located at the rear side of the upper pressing roller 5, a pressing plate 55 is fixedly sleeved on the outer surface between the fixed roller 54 and the upper pressing roller 5, the liquid chamber 51 is communicated with the cavity outside the upper pressing roller 5 through the water outlet 52, a pipeline for conveying liquid nitrogen is connected to the outside of the water inlet 53 to ensure the liquid nitrogen inside the liquid chamber 51 is sufficient, the pressing plate 55 is fixed on the outer surfaces of the fixed roller 54 and the upper pressing roller 5 in a transmission belt shape, the outer surface at the bottom of the pressing plate 55 contacts with the upper surface of the copper-aluminum composite plate 6, the pressing plate 55 has good heat conduction performance, the pressing plate 55 is convenient for realizing cast rolling of the copper-aluminum composite plate 6 by matching with the lower pressing roller 4, and can conduct the temperature of the copper-aluminum composite plate 6, a return groove 551 is arranged in the pressing plate 55, a through groove 552 is arranged on the top surface of the return groove 551 and on one side close to the upper press roll 5, exhaust holes 553 are arranged on the side surface of the pressing plate 55 and on the upper part of the return groove 551, an exhaust groove 554 is arranged in the shell 1 and at the position corresponding to the exhaust holes 553, a baffle 56 is movably hinged on the lower surface of the pressing plate 55 and right above the lower press roll 4, the number of the exhaust holes 553, the exhaust groove 554 and the baffle 56 is two, and the axial center of the upper press roll 5 is a symmetric center, so that the two baffles 56 can adjust the offset of the copper-aluminum composite plate 6, an air outlet 57 is arranged in the baffle 56, the return groove 551 is communicated with the exhaust holes on the outer side of the upper press roll 5 through the through groove 552, the position 551 is communicated with the exhaust groove 554, the position of the lower opening of the exhaust groove 554 corresponds to the position of the baffle 56, and the position of the lower opening of the air outlet 57 is flush with the position of the lower opening of the exhaust groove 554, guaranteed that exhaust nitrogen gas can be discharged through venthole 57 in exhaust groove 554 department to with nitrogen gas emission around copper aluminium composite sheet 6, avoid the inside aluminium element of copper aluminium composite sheet 6 to take place to oxidize, the quantity of baffle 56 is two, two baffles 56 are located copper aluminium composite sheet 6's both sides respectively and are located under compression roller 5, venthole 57 transversely runs through whole baffle 56, ensure that venthole 57 department exhaust nitrogen gas can push up and move baffle 56 and laminate copper aluminium composite sheet 6.
Referring to fig. 1-5, when the device is in normal operation, liquid nitrogen is continuously injected into the liquid chamber 51 through the water inlet 53, the liquid nitrogen in the liquid chamber 51 enters the returning groove 551 through the water outlet 52 and the through groove 552, and the liquid nitrogen is used to reduce the temperature of the pressing plate 55 and simultaneously cool the upper surface of the copper-aluminum composite plate 6, so that the upper and lower cooling of the copper-aluminum composite plate 6 is synchronous, and the segregation condition caused by the desynchrony of the cooling of the copper-aluminum composite plate 6 is avoided;
referring to fig. 1-5, as the temperature of the copper-aluminum composite plate 6 is reduced by absorption of liquid nitrogen, the liquid nitrogen is vaporized by the temperature to generate nitrogen gas, and the nitrogen gas enters the exhaust slot 554 through the exhaust hole 553 at the top of the return slot 551, and finally is released around the copper-aluminum composite plate 6 under the action of the air outlet 57 on the baffle 56, so that the nitrogen gas is used to protect the copper-aluminum composite plate 6, thereby effectively preventing oxidation of aluminum element in the copper-aluminum composite plate 6;
referring to fig. 1-5, the pressure generated by vaporization of liquid nitrogen is used to make nitrogen jet out through the exhaust slot 554, and further the pushing baffle 56 is attached to the side of the copper-aluminum composite board 6, and the position of the baffle 56 is always attached to the copper-aluminum composite board 6 by continuous jetting of nitrogen, and the baffles at both ends can ensure that the position of the copper-aluminum composite board 6 is in a relative balance state, when the copper-aluminum composite board 6 deflects rightwards, the pushing baffle 56 of the copper-aluminum composite board 6 deflects rightwards, so that the volume of the cavity formed between the right baffle 56 and the shell 1 is reduced, and the pressure of nitrogen at the right side is increased along with the continuous entering of nitrogen, so that the baffle 56 at the right side is moved leftwards and reset, and then the copper-aluminum composite board 6 is moved and reset by pushing the baffle 56, so that the position of the copper-aluminum composite board 6 is adjusted after deflection, thereby effectively preventing the extrusion caused by uneven pressing after the position deflection of the copper-aluminum composite board 6, further improving the quality of the copper-aluminum composite board 6.
A casting and rolling process for producing a copper-aluminum composite board comprises the following steps:
firstly, injecting a copper-aluminum solution into a cavity formed among a pouring nozzle 2, a lower pressing roller 4 and a pressing plate 55 by using a pouring channel 3, starting equipment, driving the lower pressing roller 4 to rotate and cooling the copper-aluminum solution, and driving the copper-aluminum solution to form a copper-aluminum composite plate 6 by using the lower pressing roller 4 and the pressing plate 55;
secondly, injecting liquid nitrogen into the liquid cavity 51 through the water inlet 53, wherein the liquid nitrogen enters the inner cavity of the pressing plate 55 through the water outlet 52 and enters the returning groove 551 through the through groove 552, and the liquid nitrogen is used for reducing the temperature of the pressing plate 55 and cooling the copper-aluminum composite plate 6;
a third step; the liquid nitrogen is promoted to be vaporized to generate nitrogen through the temperature of the copper-aluminum composite plate 6, and meanwhile, the nitrogen enters the exhaust groove 554 through the exhaust hole 553 at the top of the returning groove 551 and is finally discharged around the copper-aluminum composite plate 6 through the air outlet 57;
fourthly, by utilizing the pressure generated when the liquid nitrogen is vaporized, the nitrogen is enabled to be sprayed out through the lower opening of the exhaust slot 554 and pushes the two baffles 56 to be attached to the side surface of the copper-aluminum composite plate 6, so that the copper-aluminum composite plate 6 is ensured not to deviate;
fifthly, when the position of the copper-aluminum composite plate 6 deviates to the right side, the copper-aluminum composite plate 6 can also push the baffle 56 to deviate to the right side, so that the volume of a cavity formed between the right baffle 56 and the shell 1 is reduced, nitrogen gas continuously enters the cavity at the moment, the pressure of the nitrogen gas in the cavity formed between the right baffle 56 and the shell 1 is increased, the left movement of the baffle 56 is further pushed to reset, and the deflected copper-aluminum composite plate 6 is enabled to reset through the baffle 56.
The use method (working principle) of the invention is as follows:
firstly, the equipment is started, copper-aluminum solution is injected into a cavity formed among the pouring nozzle 2, the lower press roll 4 and the press plate 55 through the pouring channel 3, the copper-aluminum solution is cooled by the lower press roll 4, meanwhile, the copper-aluminum solution is enabled to form the copper-aluminum composite plate 6 by the press plate 55 matched with the rotation of the lower press roll 4, secondly, liquid nitrogen is continuously injected into the liquid cavity 51 through the water inlet 53, the liquid nitrogen in the liquid cavity 51 enters the inner cavity of the press plate 55 through the water outlet 52 and enters the return groove 551 through the through groove 552, at the moment, the liquid nitrogen in the return groove 551 enables the temperature of the copper-aluminum composite plate 55 to be reduced and simultaneously cools the upper surface of the copper-aluminum composite plate 6, secondly, the temperature of the copper-aluminum composite plate 6 enables the liquid nitrogen in the return groove 551 to be vaporized to generate nitrogen, the nitrogen is discharged around the copper-aluminum composite plate 6 through the exhaust hole 553, the exhaust groove 554 and the exhaust hole 57 to form protective gas for the copper-aluminum composite plate 6, finally, the pressure that produces when utilizing the liquid nitrogen vaporization impels nitrogen gas to spray through exhaust duct 554 and discharges, impel the side of both sides baffle 56 and the side laminating of copper aluminium composite sheet 6 through the pressure of nitrogen gas, when the position of copper aluminium composite sheet 6 squints right, copper aluminium composite sheet 6 can drive baffle 56 squints right, make the cavity volume that forms between right side baffle 56 and the casing 1 reduce, and nitrogen gas is still in continuous entering, make the nitrogen pressure on right side increase, and then the baffle 56 that pushes up the right side moves to the left and resets, impel baffle 56 to push up copper aluminium composite sheet 6 and reset.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a cast rolling equipment of copper aluminium composite sheet production, includes casing (1), pouring nozzle (2), pouring channel (3), compression roller (4) down, goes up compression roller (5) and copper aluminium composite sheet (6), its characterized in that: a liquid cavity (51) is formed in the upper pressing roller (5), a water outlet (52) is formed in the bottom of the liquid cavity (51), a water inlet (53) is formed in the middle upper portion, which is positioned on the side surface of the upper pressing roller (5), a fixed roller (54) is fixedly connected to the rear side of the inner cavity of the shell (1), which is positioned on the upper pressing roller (5), a pressing plate (55) is fixedly sleeved on the outer surface between the fixed roller (54) and the upper pressing roller (5), a returning groove (551) is formed in the pressing plate (55), a through groove (552) is formed in the top surface of the returning groove (551) and one side, which is close to the upper pressing roller (5), an exhaust hole (553) is formed in the side surface of the pressing plate (55) and is positioned on the upper portion of the returning groove (551), an exhaust hole (553) is formed in the shell (1) and an exhaust groove (554) is formed in the position corresponding to the exhaust hole (553), the lower surface of the pressing plate (55) is movably hinged with a baffle (56) right above the lower pressing roller (4), and an air outlet hole (57) is formed in the baffle (56).
2. The cast-rolling equipment for producing the copper-aluminum composite plate according to claim 1, characterized in that: the liquid cavity (51) is communicated with a cavity on the outer side of the upper pressing roller (5) through a water outlet (52), a pipeline for conveying liquid nitrogen is connected to the outer side of the water inlet hole (53), the pressing plate (55) is fixed on the outer surfaces of the fixed roller (54) and the upper pressing roller (5) in a transmission belt shape, the outer surface of the bottom of the pressing plate (55) is in contact with the upper surface of the copper-aluminum composite plate (6), and the pressing plate (55) has good heat conducting performance.
3. The cast-rolling equipment for producing the copper-aluminum composite plate according to claim 1, characterized in that: the return groove (551) is communicated with a cavity on the outer side of the upper compression roller (5) through a through groove (552), the exhaust hole (553) is communicated with an exhaust groove (554), the position of the lower opening of the exhaust groove (554) corresponds to the position of the baffle (56), and the position of the exhaust hole (57) is flush with the position of the lower opening of the exhaust groove (554).
4. The cast-rolling equipment for producing the copper-aluminum composite plate according to claim 1, characterized in that: the number of the baffle plates (56) is two, the two baffle plates (56) are respectively positioned on two sides of the copper-aluminum composite plate (6) and under the upper pressing roller (5), and the air outlet holes (57) transversely penetrate through the whole baffle plates (56).
5. The cast-rolling equipment for producing the copper-aluminum composite plate according to claim 1, characterized in that: the number of the exhaust holes (553), the exhaust grooves (554) and the baffles (56) is two, and the axial center of the upper pressure roller (5) is taken as a symmetrical center.
6. The casting and rolling process for producing the copper-aluminum composite plate according to claim 1, which is characterized by comprising the following steps of:
firstly, injecting a copper-aluminum solution into a cavity formed among a pouring nozzle (2), a lower pressing roller (4) and a pressing plate (55) by using a pouring channel (3), starting equipment to drive the lower pressing roller (4) to rotate and cool the copper-aluminum solution, and driving the copper-aluminum solution to form a copper-aluminum composite plate (6) by using the lower pressing roller (4) and the pressing plate (55);
secondly, injecting liquid nitrogen into the liquid cavity (51) through the water inlet (53), wherein the liquid nitrogen enters the inner cavity of the pressing plate (55) through the water outlet (52) and enters the returning groove (551) through the through groove (552), and the liquid nitrogen is used for promoting the temperature of the pressing plate (55) to be reduced and cooling the copper-aluminum composite plate (6);
a third step; the liquid nitrogen is promoted to be vaporized to generate nitrogen through the temperature of the copper-aluminum composite plate (6), and meanwhile, the nitrogen enters the inside of the exhaust slot (554) through the exhaust hole (553) at the top of the returning slot (551), and is finally discharged around the copper-aluminum composite plate (6) through the exhaust hole (57);
fourthly, by utilizing the pressure generated when the liquid nitrogen is vaporized, the nitrogen is sprayed out through the lower opening of the exhaust groove (554) and pushes the two baffles (56) to be attached to the side surface of the copper-aluminum composite plate (6), so that the copper-aluminum composite plate (6) is ensured not to deviate;
fifthly, when the position of the copper-aluminum composite plate (6) deflects to the right side, the copper-aluminum composite plate (6) can also push the baffle (56) to deflect to the right side, so that the volume of a cavity formed between the right baffle (56) and the shell (1) is reduced, nitrogen gas continuously enters the cavity at the moment, the pressure of nitrogen gas in the cavity formed between the right baffle (56) and the shell (1) is increased, the pushing baffle (56) is pushed to the left to reset, and the deflected copper-aluminum composite plate (6) is reset through the baffle (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210600127.1A CN114985690B (en) | 2022-05-27 | 2022-05-27 | Cast rolling equipment for producing copper-aluminum composite board and cast rolling process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210600127.1A CN114985690B (en) | 2022-05-27 | 2022-05-27 | Cast rolling equipment for producing copper-aluminum composite board and cast rolling process thereof |
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| Publication Number | Publication Date |
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| CN114985690A true CN114985690A (en) | 2022-09-02 |
| CN114985690B CN114985690B (en) | 2023-06-06 |
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| CN202210600127.1A Active CN114985690B (en) | 2022-05-27 | 2022-05-27 | Cast rolling equipment for producing copper-aluminum composite board and cast rolling process thereof |
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