Method for manufacturing stainless steel negative plate

Abstract

The invention discloses a method for manufacturing a stainless steel negative plate. A negative plate selects 316L stainless steel or duplex stainless steel; a current conducting rod selects electrolytic copper with the purity larger than 99%; and a connecting sleeve selects 316L stainless steel plates. A lifting hole is opened at one end of the negative plate, and a V-shaped groove is opened on an end face at the other end; a copper rod is molded into the current conducting rod in an extruding mode, and the flexibility of the current conducting rod is less than or equal to 0.2mm; a clamping groove is opened in the center line on a cambered surface of the current conducting rod; and the 316L stainless steel plate is rolled into the connecting sleeve, and the cross section of the connecting sleeve is matched with the section of the current conducting rod; the current conducting rod is embedded into the connecting sleeve tightly, one end of the negative plate with the lifting hole is inserted into the connecting sleeve through an opening and in interference fit with the clamping groove of the current conducting rod; the negative plate is welded; the surface of the negative plate is passivated; and an insulating clamping side bar is mounted. The stainless steel negative plate obtained through the method has the advantages of being firm, long in service life, and high in current utilization efficiency.

Description

technical field [0001] The invention relates to a method for manufacturing a cathode plate, in particular to a method for manufacturing a stainless steel cathode plate used in the electrolysis industry. Background technique [0002] With the advancement of technology, the application of stainless steel cathode plates in copper refining enterprises is becoming more and more extensive, and its development trend will gradually replace the traditional copper starter plates. Stainless steel cathodic electrolysis technology is the world's advanced technology, representing the top level of copper refining. The promotion and application of stainless steel cathode plates in copper refining enterprises has broad development prospects. However, the current cathode plate has the following problems: 1. The connection between the conductive rod and the cathode plate body, and the connection between the cathode plate body and the connecting sleeve is not firm enough; 2. The current distri...

AI Technical Summary

Problems solved by technology

However, the current cathode plate has the following problems: 1. The connection between the conductive rod and the cathode plate body, and the connection between the cathode plate body and the connecting sleeve is not firm enough; 2. The current distribution between the conductive rod of the cathode plate and the guide row of the electrolytic cell Uneven, the conductive rod is easily heated to high temperature, resulting in increased resistance and low current efficiency; 3. The corrosion resistance of the cathode plate is not good, and the service life is not long

Images