Method for preparing anode alloy button by recovery of Co-Ni cutting chips

Abstract

The invention discloses a method for preparing an anode alloy button by recovery of Co-Ni cutting chips. The method is characterized in that an electroforming solution is prepared; the cutting chips are put tightly into a titanium basket; the titanium basket is immersed in the electroforming solution and plugged into a positive pole of a power supply; a cathode plate is provided with a plurality of titanium cylinders and is coated with epoxy resin or glass fiber-reinforced plastic; the cathode plate is processed by a grinder until the metal surfaces of the titanium cylinders are exposed; the cathode plate is flushed thoroughly after being immersed in sodium bisulfate and sodium hydrogen fluoride solutions, then is put into the electroforming solution and is plugged into the negative pole of the power supply; the power supply is turned on at the current density of 4A / dm<2> and the electroforming solution is subjected to air agitation; a compaction rate of cutting chips in the titanium basket is detected and the cutting chips are refilled according to the consumption; the power supply controls the current with the increasing of the superficial area of the cathode plate in the way of stepped increasing of a current; the electroforming period is 5 days and ends after the surfaces of the titanium cylinders form the alloy button; and the cathode plate is taken out and rinsed thoroughly and then the alloy button is peeled off. The method has simple processes and high recovery efficiency, and can effectively avoid the environmental pollution caused by the traditional recovery method.

Description

technical field [0001] The invention relates to a method for recycling Co-Ni cutting chips to make anodic alloy buttons. Background technique [0002] In the metallurgical industry, with the increase of steel output and continuous casting ratio year by year, the consumption of continuous casting molds is also increasing. At present, the annual consumption of continuous casting molds in my country's continuous casting enterprises is about 2 billion. [0003] In the manufacturing cost of the crystallizer, the consumption of plating materials accounts for about 80% of the repair cost of the copper plate of the crystallizer. Therefore, on the premise of ensuring the mold manufacturing process and the quality of copper plates, how to reduce the cost of mold manufacturing and repair has become a topic of common discussion among people in the industry. [0004] In the electroplating process of the crystallizer copper plate, the coating thickness is basically uniform everywhere. I...

AI Technical Summary

Problems solved by technology

This method not only has complicated treatment process and high cost, but also uses strong acid and strong alkali which seriously pollutes the environment.

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