Metal product surface treatment process

A surface treatment and product technology, applied in the direction of metal material coating process, coating, solid diffusion coating, etc., can solve the problems of scratch resistance of metal treatment technology and high production cost of product color, to improve compatibility and compatibility, Improve scratch resistance, increase the effect of color variety

Pending Publication Date: 2019-02-22
宁波英科特精工机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a surface treatment process for metal products to solve the problem that the existing metal treatment technology cannot solve the problem of both scratch resistance and product color and high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A metal product surface treatment process, comprising:

[0039] 1) Carry out the pretreatment process on the metal product to remove the grease on the surface of the metal product;

[0040] 2) Put the metal product in the blasting machine, and use borax to blast the metal product for 15 minutes in a nitrogen atmosphere, and then wash and dry it;

[0041] 3) Put the metal product in a heating furnace, heat it to 60°C, and then put it in a sodium hydroxide mist atmosphere with a pressure of 1MPa and a mass percentage concentration of 5% for 20 seconds, then neutralize it with acid, wash and dry it ;

[0042] 4) Embed the dried metal product in a mixture of borax, charcoal and corresponding metal powder at 360°C for 4 hours under nitrogen pressure of 3 MPa; the mass ratio of borax, charcoal and metal powder is 1:3:1 .

[0043] 5) Modify the surface of metal products;

[0044] 6) The modified metal product is cleaned and dried, and then the surface coating of the metal ...

Embodiment 2

[0052] A metal product surface treatment process, comprising:

[0053] 1) Carry out the pretreatment process on the metal product to remove the grease on the surface of the metal product;

[0054] 2) Put the metal product in the blasting machine, and use borax to blast the metal product for 30 minutes in a nitrogen atmosphere, and then wash and dry it;

[0055] 3) Put the metal product in a heating furnace, heat it to 70°C, and then place it in a sodium hydroxide mist atmosphere with a pressure of 3 MPa and a mass percentage concentration of 8% for 30 seconds, then neutralize it with acid, wash and dry it ;

[0056] 4) Embed the dried metal product in a mixture of borax, charcoal and corresponding metal powder at 380°C for 2 hours under nitrogen pressure of 2 MPa; the mass ratio of borax, charcoal and metal powder is 1:3:2 .

[0057] 5) Modify the surface of metal products;

[0058] 6) The modified metal product is cleaned and dried, and then the surface coating of the metal...

Embodiment 3

[0066] A metal product surface treatment process, comprising:

[0067] 1) Carry out the pretreatment process on the metal product to remove the grease on the surface of the metal product;

[0068] 2) Put the metal product in the blasting machine, and use borax to blast the metal product for 20 minutes in a nitrogen atmosphere, and then wash and dry it;

[0069] 3) Place the metal product in a heating furnace, heat it to 65°C, and then place it in a 6% sodium hydroxide mist atmosphere with a pressure of 2 MPa for 25 seconds, then neutralize it with acid, wash and dry it ;

[0070] 4) Embed the dried metal product in a mixture of borax, charcoal and corresponding metal powder at 370°C for 3 hours under nitrogen pressure of 2 MPa; the mass ratio of borax, charcoal and metal powder is 1:3:1.5 .

[0071] 5) Modify the surface of metal products;

[0072] 6) The modified metal product is cleaned and dried, and then the surface coating of the metal product is carried out.

[0073...

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Abstract

The invention relates to a metal product surface treatment process which comprises the steps of heating a metal product in a heating furnace, then putting in an alkali steam atmosphere, and neutralizing through an acid liquor; slinging the metal product through borax, embedding the slung metal product into the borax, charcoal and corresponding metal powder, and permeating; and carrying out surfacemodification treatment on the metal product, and then coating the surface of the metal product. According to the technical scheme, the borax slinging is adopted to replace ceramic slinging in the prior art, so that during the slinging process, a part of borax is permeated into the surface of the metal product; then through boriding treatment, the infiltration capacity of the borax on the surfaceof the metal product is increased; and after modification through vinyl alcohol, through the principle that the bonding strength of an organic matter and a coating layer is larger than the bonding strength of the surface of the metal product and the coating layer, the scratch resistance of the surface of the metal product is improved, and meanwhile, the color variety of the metal product is increased.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, in particular to a metal product surface treatment process. Background technique [0002] In order to improve the corrosion resistance of the metal surface, in the prior art, the metal surface is usually treated with chromate or phosphate. However, chromate has certain toxicity, and the cost of its treatment process and waste liquid treatment after treatment is very high, and the treatment effect is poor, which does not meet the requirements of the current society for environmental protection. [0003] It is also proposed that in order to improve the corrosion resistance of the metal surface, the metal surface is doped by doping, that is, the corrosion-resistant metal is doped into the metal surface through doping technology to improve the corrosion resistance of the metal surface, and then the metal surface The surface is treated with varnish and surface coating. [0004] Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C12/02C23C22/05C23C22/78C23C22/82B24C1/00
CPCB24C1/00C23C12/02C23C22/05C23C22/78C23C22/82
Inventor 应兴隆
Owner 宁波英科特精工机械股份有限公司
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