CN110656351A - Preparation method of segment-clamping type copper-aluminum beam for zinc electrodeposition - Google Patents

Preparation method of segment-clamping type copper-aluminum beam for zinc electrodeposition Download PDF

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CN110656351A
CN110656351A CN201911030619.6A CN201911030619A CN110656351A CN 110656351 A CN110656351 A CN 110656351A CN 201911030619 A CN201911030619 A CN 201911030619A CN 110656351 A CN110656351 A CN 110656351A
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copper
aluminum
die
aluminum beam
clip
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孙成余
雷华志
岳有成
孙彦华
胥福顺
包崇军
杨筱筱
冯伟光
陈新
包稚群
周娴
闫森
谭国寅
李恒
崔丁方
何光深
张安福
朱国邦
匡志恩
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Kunming Metallurgical Research Institute
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/16Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/16Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08Tin or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02Electrodes; Connections thereof
    • YGENERAL 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
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    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
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Abstract

The invention relates to a preparation method of a clamping-joint copper-aluminum beam for zinc electrodeposition, belonging to the technical field of hydrometallurgy electrodeposition. The copper-aluminum beam is always in a pressure state in the process of cooling, solidifying and shrinking the aluminum liquid, the phenomenon of layering of a copper-aluminum transition surface caused by solidification and shrinkage of the aluminum liquid is continuously compensated, the conductivity of a product is effectively improved, and compared with gravity casting, the conductivity of the product is improved by more than 30%. In addition, the die-casting production efficiency is high, the metal loss phenomenon is hardly generated in the production process, and the production cost is low. In addition, the die-casting clamping joint type copper-aluminum beam has tight copper-aluminum contact surface, and acid mist can hardly enter the copper-aluminum contact surface in the zinc electrodeposition process, so that the service life of the die-casting clamping joint type copper-aluminum beam is effectively prolonged, the heating phenomenon in the electrodeposition process is reduced, and the direct current power consumption and the production cost of the zinc electrodeposition are reduced.

Description

Preparation method of segment-clamping type copper-aluminum beam for zinc electrodeposition
Technical Field
The invention belongs to the technical field of hydrometallurgy electrodeposition, and particularly relates to a preparation method of a segment-clamping type copper-aluminum beam for zinc electrodeposition.
Background
The electrodeposition engineering, especially the electrochemical industry and the electrometallurgical industry, cannot be separated from electrode materials, which are divided into cathodes and anodes. For example, in the zinc hydrometallurgy industry, the main material of the cathode plate is mainly aluminum, and the main components are an aluminum plate, an aluminum beam, a lifting lug and a copper-aluminum conductive head. According to the design and the plate surface size of a wet zinc smelting enterprise, the negative plate adopts a lap joint type or a clamping joint type in the conductive process, the clamping joint type negative plate aluminum beam is mainly applied to a small polar plate, the production process is shown in the attached drawing 1, and the defects of complex production process, long flow, multiple welding procedures, unstable product quality and the like exist.
The copper-aluminum beam is an important component influencing the use of a cathode plate and the direct current consumption of electrodeposition, the copper-aluminum beam is manufactured at home and abroad at present by welding a copper-aluminum conductive head and an aluminum beam together, and the preparation process of the copper-aluminum conductive head mainly comprises the following steps: (1) explosion welding: the explosive welding process is characterized in that a copper block with a smooth surface is tightly contacted with an aluminum block, a proper amount of explosive is filled in the copper block, the explosive is detonated to generate high-temperature heat instantly, the copper surface and the aluminum surface are melted, and the copper and the aluminum are welded in a contact mode through extrusion. (2) Flash butt welding: the flash butt welding principle is that a copper plate and an aluminum plate are rapidly melted under the action of strong current, and then the copper and the aluminum are melted together under the action of mechanical upsetting pressure. (3) Friction welding: the friction welding principle is that the welding surfaces of copper and aluminum are melted at high temperature under the high-speed rotation of a copper rod and an aluminum rod, and the copper and the aluminum are combined together through pressure maintaining and upsetting. (4) Tin soldering: the tin soldering process principle is a process for clamping a thin copper sheet and aluminum equipment, and soldering the copper sheet on an aluminum plate after special processing and mechanical compression joint of tin solder, and the process is simple, but has low soldering melting point and corrosive soldering flux. (5) Copper-aluminum brazing: copper-aluminum brazing is a new process for brazing and welding copper materials and aluminum materials, and has the advantages that the welded part cannot be broken, the electric conductivity is good, manual welding is achieved, the operation is simple, less equipment is invested, and the welding efficiency is low. (6) Gravity casting: the gravity casting principle is that a copper block is placed in a mold, liquid aluminum is poured into the mold, and the aluminum wraps the copper block to form the copper-aluminum conductive transition piece.
The aluminum beam is manufactured by common gravity casting and extrusion molding. (1) Ordinary gravity casting: the method comprises the steps of manufacturing a mold according to a certain specification and size, casting molten aluminum into the mold, opening the mold after the molten aluminum is cooled and solidified, taking out a product, and shearing and polishing the product to obtain the aluminum beam. (2) Extrusion molding: the method comprises the steps of machining the section according to a preset specification and size to obtain a cross beam, obtaining a lifting lug in a stamping plate mode, and welding the lifting lug and the cross beam together to obtain the aluminum cross beam.
Therefore, the clamping-joint copper-aluminum beam with good conductivity, low production cost, simple production process, high production efficiency and long service life is required to be provided in the electrodeposition industry, the service life of the cathode plate is prolonged, the direct current power consumption in the electrodeposition process is reduced, the production cost of zinc electrodeposition is reduced, some potential safety hazards are eliminated, and some problems faced by the cathode plate for the zinc electrodeposition industry at present are solved.
Disclosure of Invention
The invention combines various developed clamping-joint copper-aluminum beams for zinc electrodeposition and various preparation process advantages and limitations, develops a preparation method of the clamping-joint copper-aluminum beam for zinc electrodeposition, obtains the copper-aluminum conductive transition piece with compact copper-aluminum contact surface and good conductivity, solves the problem of transition piece heating, has long service life, and reduces the direct current power consumption and the production cost of the zinc electrodeposition.
In order to realize the purpose, the invention is realized by the following technical scheme:
the preparation method of the clamping-joint type copper-aluminum beam for zinc electrodeposition comprises the following steps:
1) soaking the copper block in the degreasing agent for 5 ~ 10min, wiping the surface of the copper block, and brushing HCl and SnCl on the surface of the cleaned copper block2Drying the mixed solution;
2) soaking the dried copper block in molten tin liquid, taking out the copper block after the copper block is fully wetted by the tin liquid, and scraping excessive tin liquid by using a copper sheet;
3) placing the tinned copper block at a preset position in a die casting machine die, and closing the die;
4) aluminum is melted and then an automatic die casting process is adopted to die cast aluminum alloy liquid into a die, and the die is opened after the aluminum liquid is cooled and solidified, so that a primary clip-joint copper-aluminum beam with the required overall dimension is obtained;
5) carrying out heat treatment on the primary clip type copper-aluminum beam, heating and preserving heat to fully diffuse interface copper and aluminum;
6) and taking out the heat-treated clip-joint copper-aluminum beam, and naturally cooling to room temperature to obtain the clip-joint copper-aluminum beam.
Further, the copper block is T2 red copper, and the chemical components are as follows:w(Cu+Ag)≥99.90%,w(Bi)≤0.001%,w(Sb)=0.002%,w(As)=0.002%,w(Fe)=0.002%,w(Pb)=0.005%,w(S)=0.002%,w(impurities) is less than or equal to 0.1 percent.
Further, the aluminum alloy comprises the following chemical components:w(Si)=3-1.5%,w(Mg)=0.2-0.4%,w(Fe)≤0.20%,w(Cu)≤0.20%,w(Mn)≤0.10%,w(Zn)≤0.10%,wless than or equal to 0.15 percent of (Ti), less than or equal to 0.05 percent of other elements, less than 0.15 percent of the total amount, and the balance of aluminum.
Further, the HCl and SnCl2Mixed liquor ofm(HCl):m(SnCl2)=0.5~2.5,w(HCl+SnCl2)=5%~30%。
Further, in the step 1), the drying condition is drying for 0.5 ~ 1h at 110 ~ 140 ℃ under 140 ℃.
Further, in the step 4), the die casting process parameters are that the die casting temperature is 710 ~ 740 ℃, the pressure is 70 ~ 90MPa, the jet speed is 30 ~ 38m/s, and the pressure maintaining time is 15 ~ 20 s.
Further, in the step 6), the heat treatment process is carried out at the heat preservation temperature of 350 ~ 470 ℃ for 3 ~ 5 h.
The invention has the beneficial effects that:
the invention adopts the die casting process to prepare the segment-sandwiched copper-aluminum beam, and has the advantages of good conductivity, high production efficiency, low production cost, stable transition piece quality and good appearance quality. The die-casting copper-aluminum conductive transition piece is always in a pressure state in the process of cooling, solidifying and shrinking the aluminum liquid, the phenomenon of layering of the copper-aluminum transition surface caused by the solidification and shrinkage of the aluminum liquid is continuously compensated, the conductive performance of a product is effectively improved, and compared with gravity casting, the conductivity of the product is improved by more than 30%. In addition, the die casting production efficiency is high, and the production process hardly has metal loss phenomenon, so the production cost is low. In addition, the die-casting clamping joint type copper-aluminum beam has tight copper-aluminum contact surface, and acid mist can hardly enter the copper-aluminum contact surface in the zinc electrodeposition process, so that the service life of the die-casting clamping joint type copper-aluminum beam is effectively prolonged, the heating phenomenon in the electrodeposition process is reduced, and the direct current power consumption and the production cost of the zinc electrodeposition are reduced.
Drawings
FIG. 1 is a schematic view of a conventional clip-joint copper aluminum beam;
fig. 2 is a schematic view of a clip copper aluminum beam of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below to facilitate understanding of the skilled person.
Examples
The raw materials of this example include degreaser, copper billet, aluminum alloy, HCl and SnCl2(ii) a The equipment comprises a smelting furnace, a die casting machine and a heat treatment furnace.
Wherein the degreasing agent is a conventional metal degreasing agent sold in the market. The copper block is T2 red copper, and its chemical composition is:w(Cu+Ag)≥99.90%,w(Bi)≤0.001%,w(Sb)=0.002%,w(As)=0.002%,w(Fe)=0.002%,w(Pb)=0.005%,w(S)=0.002%,w(impurities) is less than or equal to 0.1 percent. The aluminum alloy comprises the following chemical components:w(Si)=3-1.5%,w(Mg)=0.2-0.4%,w(Fe)≤0.20%,w(Cu)≤0.20%,w(Mn)≤0.10%,w(Zn)≤0.10%,wless than or equal to 0.15 percent of (Ti), less than or equal to 0.05 percent of other elements, less than 0.15 percent of the total amount, and the balance of aluminum. HCl and SnCl2Mixed liquor ofm(HCl):m(SnCl2)=0.5~2.5,w(HCl+SnCl2)=5%~30%。
The preparation method of the joint type copper-aluminum beam for zinc electrodeposition comprises the following steps:
1) processing a copper plate into a required copper block according to a related drawing, placing the copper block in a degreasing agent for soaking for 5 ~ 10min, wiping the surface of the copper block by using a clean towel, and brushing HCl and SnCl on the surface of the clean copper block2The copper block after being brushed is placed in an oven to be dried under the condition of 110 ~ 140 ℃ for 0.5 ~ 1 h.
2) And (3) heating the tin ingot in a smelting furnace, soaking the dried copper block in the tin liquid after the tin ingot is melted and the temperature is raised to be more than 350 ℃, taking out the copper block after the copper block is fully wetted by the tin liquid, and scraping excessive tin liquid by using a copper sheet.
3) And placing the tinned copper block at a preset position in a die of a die casting machine, and closing the die.
4) And (2) putting aluminum into a smelting furnace, and after the aluminum is melted, die-casting aluminum alloy liquid into a die by adopting an automatic die-casting process, wherein the die-casting process parameters are that the die-casting temperature is 710 ~ 740 ℃, the pressure is 70 ~ 90MPa, the jet flow speed is 30 ~ 38m/s, and the pressure maintaining time is 15 ~ 20 s.
5) And (3) placing the primary clip type copper-aluminum beam in a heat treatment furnace, heating and preserving heat at the temperature of 350 ~ 470 ℃ for 3 ~ 5h, and fully diffusing interface copper and aluminum.
6) And taking out the heat-treated clip-joint copper-aluminum beam, and naturally cooling to room temperature to obtain the clip-joint copper-aluminum beam.
Application analysis
The copper-aluminum beam prepared by the invention is compared with the traditional copper-aluminum beam.
Application example 1
The electrolytic condition of a certain company for industrially producing zinc is that the inter-polar distance is 62mm, the electrolytic period is 24 hours, and the current density is 420A/m2The negative plate is made of aluminum, and the size of the negative plate is 1.2m2The copper-aluminum beam manufacturing process is characterized in that a conductive head, a lifting lug and a beam are welded together, the overall conductivity of a product is detected to be 28.54, the same batch of products are subjected to sampling inspection, the product percent of pass is about 99.8%, the service life is 9.8 months, and the average temperature of the contact position of a busbar and copper in the electrodeposition process is 54.2 ℃.
Under the same electrolysis condition, the copper-aluminum conductive transition piece adopts the clip-joint copper-aluminum beam, the detection result shows that the conductivity of the beam is 30.12, the product percent of pass reaches 100%, the service life reaches 18.2 months, and the average temperature of the copper-aluminum conductive transition piece in the electrodeposition process is 51.3 ℃.
Application example 2
The electrolytic condition of the industrial production of zinc by a certain company is that the inter-polar distance is 60mm, the electrolytic period is 24 hours, and the current density is 480A/m2The negative plate is made of aluminum, and the size of the negative plate is 1.2m2The copper-aluminum beam manufacturing process is characterized in that a conductive head, a lifting lug and a beam are welded together, the conductivity of the whole product is detected to be 29.18, the same batch of products are subjected to sampling inspection, the product percent of pass is about 99.9%, the service life is 8.2 months, and the average temperature of the contact position of a busbar and copper in the electrodeposition process is 55.2 ℃.
Under the same electrolysis condition, the copper-aluminum conductive transition piece adopts the die-casting copper-aluminum beam copper-aluminum conductive transition piece with the clamping-joint type copper-aluminum beam, the detection result shows that the conductivity of the clamping-joint type copper-aluminum beam is 29.95, the product percent of pass reaches 100%, the service life reaches 15.5 months, and the average temperature of the contact position of the busbar and the copper in the electrodeposition process is 52.2 ℃.
Application example 3
The electrolytic condition of a company for industrially producing zinc is that the inter-polar distance is 62mm, the electrolytic period is 48h, and the current density is 430A/m2The negative plate is made of aluminum, and the size of the negative plate is 1.6m2The conductive head, the lifting lug and the cross beam are welded together by the copper-aluminum cross beam in a welding mode, the conductive head is prepared by a gravity casting process, the conductivity of the whole product is 23.2 according to a detection result, the same batch of products are subjected to sampling inspection, the product percent of pass is about 98.5%, the service life is 7.5 months, and the average temperature of the contact position of the busbar and the copper in the electrodeposition process is 57.4 ℃.
Under the same electrolysis condition, the copper-aluminum conductive transition piece adopts the die-casting copper-aluminum beam copper-aluminum conductive transition piece with the clamping-joint type copper-aluminum beam, the detection result shows that the conductivity of the clamping-joint type copper-aluminum beam is 26.4, the product percent of pass reaches 100%, the service life reaches 14.5 months, and the average temperature of the contact position of the busbar and the copper in the electrodeposition process is 53.2 ℃.
Application example 4
The electrolytic condition of a certain company for industrially producing zinc is that the inter-polar distance is 62mm, the electrolytic period is 48 hours, and the current density is 500A/m2The negative plate is made of aluminum, and the size of the negative plate is 1.6m2The conductive head, the lifting lug and the cross beam are welded together by the copper-aluminum cross beam in a welding mode, the conductive head is prepared by a gravity casting process, the conductivity of the whole product is 22.2 according to a detection result, the same batch of products are subjected to sampling inspection, the product percent of pass is about 98.6%, the service life is 8.5 months, and the average temperature of the contact position of a busbar and copper in the electrodeposition process is 53.4 ℃.
Under the same electrolysis condition, the copper-aluminum conductive transition piece adopts the die-casting copper-aluminum beam copper-aluminum conductive transition piece with the clamping-joint type copper-aluminum beam, the detection result shows that the conductivity of the clamping-joint type copper-aluminum beam is 24.4, the product percent of pass reaches 100%, the service life reaches 17.5 months, and the average temperature of the contact position of the busbar and the copper in the electrodeposition process is 50.2 ℃.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (7)

1. A preparation method of a segment-clamping type copper-aluminum beam for zinc electrodeposition is characterized by comprising the following steps: the method comprises the following steps:
1) soaking the copper block in the degreasing agent for 5 ~ 10min, wiping the surface of the copper block, and brushing HCl and SnCl on the surface of the cleaned copper block2Drying the mixed solution;
2) soaking the dried copper block in molten tin liquid, taking out the copper block after the copper block is fully wetted by the tin liquid, and scraping excessive tin liquid by using a copper sheet to prevent the excessive tin liquid from entering aluminum to form alloy so as to influence subsequent welding work;
3) placing the tinned copper block at a preset position in a die casting machine die, and closing the die;
4) aluminum is melted and then an automatic die casting process is adopted to die cast aluminum alloy liquid into a die, and the die is opened after the aluminum liquid is cooled and solidified, so that a primary clip-joint copper-aluminum beam with the required overall dimension is obtained;
5) carrying out heat treatment on the primary clip type copper-aluminum beam, heating and preserving heat to fully diffuse interface copper and aluminum;
6) and taking out the heat-treated clip-joint copper-aluminum beam, and naturally cooling to room temperature to obtain the clip-joint copper-aluminum beam.
2. The method for preparing the clip type copper-aluminum beam for zinc electrodeposition according to claim 1, which is characterized in that: the copper block is T2 red copper, and the chemical components are as follows:w(Cu+Ag)≥99.90%,w(Bi)≤0.001%,w(Sb)=0.002%,w(As)=0.002%,w(Fe)=0.002%,w(Pb)=0.005%,w(S)=0.002%,w(impurities) is less than or equal to 0.1 percent.
3. Preparation of the copper-aluminum beam for zinc electrodeposition according to claim 1The method is characterized in that: the aluminum alloy comprises the following chemical components:w(Si)=3-1.5%,w(Mg)=0.2-0.4%,w(Fe)≤0.20%,w(Cu)≤0.20%,w(Mn)≤0.10%,w(Zn)≤0.10%,wless than or equal to 0.15 percent of (Ti), less than or equal to 0.05 percent of other elements, less than 0.15 percent of the total amount, and the balance of aluminum.
4. The method for preparing the clip type copper-aluminum beam for zinc electrodeposition according to claim 1, which is characterized in that: the HCl and SnCl2Mixed liquor ofm(HCl):m(SnCl2)=0.5~2.5,w(HCl+SnCl2)=5%~30%。
5. The method for preparing the sandwich copper-aluminum beam for zinc electrodeposition according to claim 1, wherein in the step 1), the drying is carried out at 110 ~ 140 ℃ for 0.5 ~ 1 h.
6. The method for preparing the clip-type copper-aluminum beam for zinc electrodeposition according to claim 1, wherein in the step 4), the die casting process parameters are that the die casting temperature is 710 ~ 740 ℃, the pressure is 70 ~ 90MPa, the jet velocity is 30 ~ 38m/s, and the pressure holding time is 15 ~ 20 s.
7. The method for preparing the clip-type copper-aluminum beam for zinc electrodeposition according to claim 1, wherein in the step 6), the heat treatment process is carried out at the temperature of 350 ~ 470 ℃ for 3 ~ 5 hours.
CN201911030619.6A 2019-10-28 2019-10-28 Preparation method of segment-clamping type copper-aluminum beam for zinc electrodeposition Pending CN110656351A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111893517A (en) * 2020-07-20 2020-11-06 云南铜业压铸科技有限公司 Copper-aluminum composite cathode plate conductive beam formed by integral die-casting and die-casting method thereof
CN111945189A (en) * 2020-09-15 2020-11-17 昆明冶金研究院有限公司 Lap joint type copper-aluminum integrated beam for zinc electrodeposition and preparation method thereof
CN113948257A (en) * 2021-09-13 2022-01-18 江苏金安电气有限公司 Ceramic structure glue-impregnated fiber capacitive sleeve and use method thereof
CN114574906A (en) * 2022-04-15 2022-06-03 昆明冶金研究院有限公司 Zinc electrodeposition cathode plate aluminum integral beam and preparation method thereof

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