Electrochemical grind (polishing) method for stainless steel

An electrochemical grinding and stainless steel technology, applied in the field of surface grinding and polishing of stainless steel materials, can solve the problem of high grinding cost, and achieve the effect of improving grinding effect, reducing cost and small viscosity coefficient

Inactive Publication Date: 2004-03-10
周国桢
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Consumes a large amount of neutralizing materials—NaOH, etc., and the grinding cost is very high

Method used

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[0006] ingredients

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Abstract

A process for electrochemically grinding (polishing) stainless steel material includes preparing electrochemical grinding liquid from phosphoric acid, sulfuric acid, brightening agent and water and immersing the stainless steel material in it at 15-75 deg.C for 1min-2 hrs while applying current by 10-25 A / sq.dm. Its advantages are high grinding effect up to 8K and no environmental pollution.

Description

1. Technical field [0001] The invention relates to a surface grinding and polishing method of a stainless steel material (workpiece), in particular to a stainless steel electrochemical grinding (polishing) method. 2. Background technology [0002] The commonly used electrochemical grinding solution is composed of phosphoric acid, sulfuric acid, gelatin (bone glue) and other components. The solution has a large viscosity coefficient, poor fluidity, contains a lot of phosphoric acid, and the content of chromic anhydride is more than 50 grams per liter. It pollutes the environment and is only suitable for use. It is used for fine grinding (polishing) of fine parts, but not suitable for large containers and large mechanical parts because of its high current density (up to 30-40A / dm 2 ), the viscosity is large, the workpiece is taken out of the bath more, the waste is large, the cleaning waste water cannot be recycled, and the production cost is high. Japanese Patent Application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/24
Inventor 周国桢王思勤陈文银陈恩连周国良
Owner 周国桢
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