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

A technology of continuous casting crystallizer and alloy process, which is applied in the field of electroplating alloy layer and electroplating nickel-cobalt alloy on the working face of the mold of high-efficiency slab continuous casting machine, to achieve the effect of improving high-temperature mechanical properties, reducing internal stress, and improving quality

Inactive Publication Date: 2003-11-12
鞍山冶金集团工业有限公司鞍山一炼钢分公司
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AI Technical Summary

Problems solved by technology

This is the method of conventional electroplating alloy layer is difficult to achieve the purpose

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0044] First, polish and clean the working surface of the processed copper plate, etch with lye and acid solution, and then activate it with dilute acid, and then perform the following steps:

[0045] The box-type electroplating alloy process for the copper plate of the continuous casting crystallizer includes grinding and cleaning the copper plate. A bottomless tank is placed on the electroplating working platform, which is in common with the working platform

[0046] Form the electroplating tank;

[0047] (2) the titanium mesh basket as anode is put into the middle of the above-mentioned electroplating tank, fills the sulfamic acid salt series electroplating solution of low cobalt content in the tank,

[0048] The composition of this sulfamate-based electroplating solution is:

[0049] Nickel sulfamate (calculated as nickel ion) 20~30g / L

[0050] Nickel chloride 0.5~1g / L

[0051] Cobalt sulfamate (calculated as cobalt ion) 0.2~1.0g / L

[0052] Boric acid 20~50g / L

[005...

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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...

Claims

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Application Information

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IPC IPC(8): B22D11/057C25D3/56C25D7/00
Inventor 苏钢方克明张宏杰汪振明薛悦忠李毓昌
Owner 鞍山冶金集团工业有限公司鞍山一炼钢分公司
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