CN202064009U - Aluminum rolled plate melted plate beam-type cathode plate - Google Patents

Abstract

Aluminum calendered plate fused cast plate beam-type cathode plate is to solve the problems of existing cast-formed aluminum cathode plate for zinc electrolysis, such as brittleness, poor surface finish, difficult peeling of electrolytic zinc plate, short service life and calendered aluminum plate welded plate beam. The cathode plate, whose welding stress makes the cathode plate easy to deform, causes the cathode plate to be arranged unevenly in the electrolytic cell, wastes electric energy, and affects the electrolysis output, quality and other technical problems. The solution: extend the end beam part of the calendered plate cut according to the required size into the mold, adopt the electric induction method to make the surface of the end beam of the calendered plate melt to a depth of ≥ 1mm, and then inject the melted aluminum liquid to make the surface of the end beam The melted part and the aluminum liquid injected into the mold are condensed into a whole, and the aluminum liquid injected into the mold wraps the copper conductive block to form a whole. After the solidification and unloading of the mold, the copper conductive block is partially brazed and strengthened. It has the advantages of firm combination, no gap, good conductivity, no deformation, high utilization rate of electricity in the zinc electrolysis process, can increase electrolysis output, increase electrolyte volume, and have a long service life of the cathode plate.

Description

Aluminum calendered plate fused cast plate beam type cathode plate

Technical field:

The utility model relates to an aluminum cathode plate used in the zinc electrolysis process of heavy nonferrous metals, in particular to an aluminum rolled plate melting cast plate beam type cathode plate used in the zinc electrolysis process of heavy nonferrous metals. the

Background technique:

There have been two manufacturing forms of aluminum cathode plates used in the heavy non-ferrous metal zinc electrolysis process at home and abroad:

1. Cast aluminum cathode plate has disadvantages: low forming rate, brittle and easy to crack, poor surface finish, difficult peeling of electrolytic zinc plate, and short service life. the

2. Use the calendered aluminum plate, and then weld the plate girder by welding. Its disadvantages: there is stress in the welding place, which makes the plate girder prone to lateral and end deformation, and makes the gap between the cathode plates in the electrolytic cell uneven. , causing waste of electric energy in the electrolysis process, affecting the output and quality of zinc electrolysis, and shortening the service life of the cathode plate. the

In today's social development, the electrolysis industry requires saving electric energy, increasing electrolysis output, increasing electrolyte volume, and reducing the cost of using cathode plates. The aluminum cathode plates used in the zinc electrolysis process manufactured in the above manner cannot meet the above requirements. the

Invention content:

The utility model aims to solve the problem of the cast aluminum cathode plate used in the existing zinc electrolysis process, which is brittle, poor in surface finish, difficult to peel off the electrolytic zinc plate, short in service life, and the welding stress of the cathode plate of the calendered aluminum plate welded plate beam. The cathode plate is easily deformed, resulting in uneven arrangement of the cathode plate in the electrolytic cell, wasting electricity, affecting the electrolysis output and quality and other technical problems. An aluminum calendered plate fused cast plate beam-type cathode plate is provided, which includes an aluminum calendered plate. , the calendered plate end beam portion at one end of the aluminum calendered plate is a surface melting layer with a thickness of ≥1 mm, and together with the aluminum liquid injected into the mold, the bonding part of the aluminum calendered plate end beam is connected to the plate girder by melting and casting Integrate; the aluminum liquid injected into the mold forms the wrapping layer of the copper conductive block in the mold, so that the copper conductive block and the plate girder are melted and cast as one, and the copper and aluminum joints of the copper conductive block are locally brazed. the

Features and beneficial effects of the utility model: the slab girder and the aluminum calendered plate are fused and cast to form a whole. Strong combination, smooth surface, no gaps, good electrical conductivity; non-deformable, durable, chemical properties resistant to electrolytic zinc liquid, prolonging the service life and reducing the cost of use; making the zinc electrolysis process have a high utilization rate of electric energy and play a role in saving electricity; At the same time, the output and quality of electrolytic products are improved. the

Description of drawings:

Fig. 1 structural representation of the utility model

Detailed ways:

Referring to Fig. 1, aluminum calendered plate fused cast plate beam-type cathode plate, it comprises aluminum calendered plate 1, the calendered plate end beam part of described aluminum calendered plate 1 one end, is the surface melting layer ≥ 1mm thick, and injects The aluminum liquid in the mold melts and casts the joint part 2 of the end beam of the aluminum rolling plate 1 and the plate beam 3 together; the aluminum liquid injected into the mold forms a wrapping layer of the copper conductive block 4 in the mold, so that the copper The conductive block 4 and the plate girder 3 are melted and cast into one body, and the copper-aluminum junction of the copper conductive block 4 is partially soldered and connected. the

The preparation method of this cathode plate is realized through the following steps:

1) Cut the aluminum calendered plate 1 according to the required size, and the length dimension includes the end beam part of the calendered plate formed by the joint part 2 of the aluminum calendered plate 1 and the plate girder 3;

2) Extend the end beam part of the calendered plate into the special mold with long holes;

3) Use the electric induction method to melt the surface of the end beam part of the calendered plate in the mold, and the melting depth is ≥ 1mm, and then inject molten aluminum that has been melted in advance, so that the end beam part of the calendered plate after the surface is melted and the injected aluminum liquid are melted and cast into one whole;

4) Place the copper conductive block 4 with embedded parts in a fixed position in the mold in advance, pour the aluminum liquid into the mold to wrap the copper conductive block, and make the copper conductive block 4 and the plate girder 3 into one after the aluminum liquid condenses. the

5) After solidification and mold removal, local brazing reinforcement is performed on the copper-aluminum junction of the copper conductive block 4 . the

After the condensed cathode plate is removed from the mold, the copper-aluminum junction of the copper conductive block 4 is partially brazed and strengthened. the

The aluminum materials of the aluminum calendered plate 1 and the plate girder 3 are selected to have chemical properties resistant to electrolytic zinc liquid and good electrical conductivity. the

Example

For the cathode plate of the calendered aluminum plate welded plate girder, the welding stress makes the cathode plate and the plate girder easy to deform, making the gap between the cathode plates in the electrolytic cell uneven, wasting electricity, and affecting the output and quality of electrolysis. The aluminum calendered plate developed in this paper The solution of casting plate beam type cathode plate is:

Both the aluminum calendered plate 1 and the plate girder 3 are made of materials with chemical properties resistant to electrolytic zinc liquid and excellent electrical conductivity: 1A97 grade is used for the aluminum calendered plate, and 1A97 grade is also selected for the plate girder material. Specific preparation process:

First process the aluminum cathode plate 1 according to the required size, and its size length should include the joint part 2 with the plate girder 3; according to the size of the plate girder, the end beam part with the elongated hole that can extend into the aluminum rolled plate is manufactured. Steel special mold;

Fix the red copper conductive block at the determined position in the special steel mold, and then use the electric induction method to melt the surface of the end beam part protruding into the mold, the depth is ≥ 1mm, and then inject the melted aluminum liquid to wrap the copper conductive block , and at the same time, it is melted and cast together with the aluminum rolled plate end beam part melted to a specified degree;

After solidification, open the mold and take out the formed aluminum cathode plate 1;

Then the copper-aluminum junction of the copper conductive block 4 is partially brazed and strengthened, and finally an "aluminum calendered plate fused cast plate beam type cathode plate" is obtained. the

Claims (2)

1. aluminium matter is rolled plate founding plate-girder type negative plate, it comprises aluminium matter calendering plate (1), it is characterized in that: the calendering plate end carriage part of described aluminium matter calendering plate (1) one end, be 〉=surface melting layer that 1mm is thick, and the aluminium liquid in injecting mould connects as one the bound fraction (2) of described aluminium matter calendering plate (1) end carriage with plate-girder (3) founding; Aluminium liquid in the described injection mould forms the integument of copper conducting block (4) in the mould, and making copper conducting block (4) and plate-girder (3) founding is one, and partial soldering connection is carried out in copper, the aluminium junction of copper conducting block (4).

2. the described aluminium matter of claim 1 is rolled plate founding plate-girder type negative plate, it is characterized in that: the thickness of described plate-girder (3) is 2～3 times of aluminium matter calendering plate (1) thickness.

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