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Process for treating metal oxide layer

A treatment process and oxide layer technology, applied in the direction of metal material coating process, etc., can solve the problems of part matrix damage, complex process, and many steps, and achieve the effect of reducing part matrix damage, simple process, and thorough removal.

Inactive Publication Date: 2016-05-18
CHONGQING CHUNGU MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For active metals, the surface is prone to oxidation, forming a dense oxide film. The oxide film is loose and porous. Anti-oxidation measures must be implemented for such metals. Existing measures will treat some metals that are particularly sensitive to temperature. Parts will cause the oxide layer of the parts to reach a very high temperature, causing deformation or cracks in the metal parts, affecting the dimensional accuracy and normal use of the parts, and even causing the parts to break in severe cases
The oxidation treatment process of the metal oxide layer in the prior art has the disadvantages of complex process, many steps, serious damage to the part matrix, and incomplete removal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment one: a kind of metal oxide layer processing technology, its technology comprises the following steps: put the metal to be treated in the solution that is made up of sodium dichromate, magnesium sulfate, manganese sulfate, water, immerse 10 under room temperature condition -20min, then rinse with cold water, then wash with distilled water for 5-10min, and finally dry at 60-70°C; the weight ratio of sodium dichromate, magnesium sulfate, manganese sulfate, and water is 10-12:5- 8:5-7:80-90;

Embodiment 2

[0011] Embodiment two: a kind of metal oxide layer processing technology, its technology comprises the following steps: put the metal to be treated in the solution that is made up of sodium dichromate, magnesium sulfate, manganese sulfate, water, immerse 10 under room temperature condition -20min, then rinse with cold water, then wash with distilled water for 5-10min, and finally dry at 60-70°C; the weight ratio of sodium dichromate, magnesium sulfate, manganese sulfate, and water is 11:7:6: 85.

[0012] The metal oxide layer treatment process of the present invention has a simple process, and can remove oxide skin at a high speed, reduce damage to parts matrix, and remove more thoroughly through strict process parameter control.

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PUM

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Abstract

The invention discloses a process for treating a metal oxide layer. The process is characterized by comprising the following steps that metal to be treated is placed in a solution formed by sodium dichromate, magnesium sulfate, manganese sulfate and water, dipping is conducted for 10-20 min under the room temperature condition, and then the metal is flushed with cold water; afterwards, the metal is washed with distilled water for 5-10 min; and finally the metal is dried at the temperature of 60-70 DEG C. The process for treating the metal oxide layer is simple, and through strict control over process parameters, the descaling speed is high, part base body damage can be reduced, and removal is more thorough.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, in particular to a metal oxide layer treatment process. Background technique [0002] For active metals, the surface is prone to oxidation, forming a dense oxide film. The oxide film is loose and porous. Anti-oxidation measures must be implemented for such metals. Existing measures will treat some metals that are particularly sensitive to temperature. Parts will cause the oxide layer of the parts to reach a very high temperature, causing deformation or cracks in the metal parts, affecting the dimensional accuracy and normal use of the parts, and even causing the parts to break in severe cases. The oxidation treatment process of the metal oxide layer in the prior art has the disadvantages of complex process, many steps, serious damage to the part matrix, and incomplete removal. Contents of the invention [0003] The purpose of the present invention is to aim at the deficiencies in the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/68
Inventor 吴家超
Owner CHONGQING CHUNGU MACHINERY MFG CO LTD
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