A new type of composite anode plate manufacturing method

Abstract

The invention discloses a method for preparing a novel composite anode plate. The method comprises the following steps: (1) adopting cold press compounding, namely two lead plates or lead alloy plates, stacking an aluminum plate or an aluminum alloy plate together to form a shape of the lead plate or the lead alloy plate, and the aluminum plate or the aluminum alloy plate and the lead plate or the lead alloy plate, and feeding to a roller to roll and form a lead-clad aluminum composite plate; (2) preparing an aluminum-clad copper composite conductive copper bar by cold drawing compounding or hot casting compounding, namely sleeving an aluminum pipe on the copper pipe or copper bar to compound by drawing plastic deformation, putting the copper pipe or the copper bar to be compounded into a special die, melting aluminum or aluminum alloy, and compounding the aluminum on the copper pipe or the copper bar by a hot casting method; and (3) welding the aluminum plate or the aluminum alloy plate in the middle of the composite plate and the aluminum pipe at the outer surface of the composite conductive bar together to form the composite anode plate. According to the method, the compound reliability of the aluminum plate and the lead plate in the composite plate, and the welding stability of the composite plate and the conductive bar can be improved; and the method has the advantages of good reliability, strong conductivity and high electric efficiency and the like.

Description

technical field [0001] The invention relates to a manufacturing method of a novel composite anode plate, which belongs to the technical field of electrolysis. Background technique [0002] Lead anode plates are widely used in non-ferrous metal purification and product production processes, and are used as insoluble anode plates in electrolytic cells. The disadvantages of the traditional lead anode plate are: (1) the lead density is high, and the weight of the lead anode plate is also large, and the conductive rod on the anode plate must bear a large load; (2) the conductivity of pure lead or lead alloy is poor, or It is said that the resistance is large, which not only makes the electrical efficiency of the electrodeposition process low but also loses the electric energy consumed by the resistance of the lead anode plate during the electrodeposition process, which will heat the electrolyte and complicate the operation and control of the electrodeposition process; (3) It is ...

AI Technical Summary

Problems solved by technology

The disadvantages of traditional lead anode plates are: (1) the density of lead is high, and the weight of lead anode plates is also large, and the conductive rods on the anode plate must bear a large load; (2) the conductivity of pure lead or lead alloy is poor, or It is said that the resistance is large, which not only makes the electrical efficiency of the electrodeposition process lower but also loses the electric energy consumed by the resistance of the lead anode plate during the electrodeposition process, which will heat the electrolyte, complicating the operation and control of the electrodeposition process; (3) It is easy to deform, making the surface of the anode plate uneven, which affects the electrodeposition efficiency and current efficiency of the product; (4) Once the anode plate is corroded and perforated, it is difficult to repair and then scrapped, the life of the anode plate is low, and the amount of waste lead is large

Although this preparation method solves a series of problems of the traditional lead anode plate, it also has the following defects: one, this method is easy to cause separation between the aluminum plate and the lead, especially after a period of use, the lead thermally compounded on the aluminum plate will be It is separated from the aluminum plate, and the reliability is poor; the second is that when the composite plate is connected with the copper conductive beam, it is welded between aluminum and copper, not only the stability of the welding is not easy to grasp, the solder joints are easy to fall off, but also the conductivity is poor