Combined-box alloy plating process of continuous casting crystallizer copper plate

Abstract

The present invention provides a crystallizer copper plates group box-type nickel-cobalt alloy electroplating process for high-effectively continuously-casting plate blank, which includes: using two cleaned copper plate working surfaces oppositely arranged and other two non-metallic end plates to form a bottom less tank, placing said bottomless tank on the electroplating work platform to form electroplating bath, placing anode into the electroplating bath and injecting the sulfamate system electroplating solution with low cobalt content, powering-on to make electroplating, when the coating thickness is reached to 0.1-0.3 mm, discharging 20-60% of electroplating solution, raising cobalt content in the residual electroplating solution to 15-30%.

Description

technical field

[0001] The invention belongs to the technical field of electroplating, in particular to a box-type electroplating alloy element process for copper plates of continuous casting crystallizers, and is especially suitable for electroplating alloy layers on the working surface of crystallizers of high-efficiency slab continuous casting machines, such as nickel-cobalt alloy electroplating . Background technique

[0002] The high-efficiency medium-thin slab continuous casting process is a high-efficiency and energy-saving near-net-shape continuous casting process developed in the 1990s. This process has some special requirements for the mold copper plate. The slab is between 50 and 150 mm in thickness. Medium and thin slabs, and the casting speed is between 1.8 and 6m / min, the heat exchange of the mold copper plate is very large, and there are high requirements for the flow and pressure of cooling water. As a result, hot cracks occur on the copper plate near the mo...