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Metal surface treating process

A metal surface treatment and metal surface 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, and improve scratch resistance. , the effect of increasing the variety of colors

Inactive Publication Date: 2019-03-29
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 metal surface treatment process 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

preparation example Construction

[0032] The preparation method of modified borax, by weight, comprises:

[0033] (1) Mix and stir the silane coupling agent of 0.2-0.3 part and 50-70 parts of borax to obtain the borax mixture;

[0034] (2) take by weighing the vinyl alcohol monomer of 1 part-5 part, the sodium dodecylbenzene sulfonate of 0.1 part-0.5 part and the persulfate of 0.2 part-0.3 part are mixed with aqueous solution, then with step (1) The borax mixture in the mixture is mixed and hydrothermally reacted for 0.5-2 hours, and the modified borax is obtained after filtering and washing. The particle size of the modified borax is less than 100nm.

[0035] 4) Cleaning and drying the metal to be treated after the blasting treatment, and coating the surface of the metal to be treated.

[0036] The coating treatment of the metal surface to be treated includes the application of a protective lacquer layer.

Embodiment 1

[0039] A metal surface treatment process, comprising:

[0040] 1) Carry out the pre-treatment process to the metal to be treated to remove the grease on the surface of the metal to be treated;

[0041] 2) Put the metal to be treated in a heating furnace, heat it to 40°C, and then place it in a mist atmosphere of 5% sodium hydroxide under a pressure of 3MPa for 20 seconds, then neutralize it with acid, wash and dry it. Dry;

[0042] 3) Put the dried metal to be treated in the sand blasting machine, use borax to treat the metal to be treated by sand blasting for 15 minutes, and then bury the metal to be treated after sand blasting in modified borax at 180°C under a pressure of 5 MPa Infiltration for 4 hours;

[0043] 4) The metal to be treated after the blasting treatment is cleaned, dried, and then subjected to surface coating treatment of the metal to be treated; the surface coating treatment of the metal to be treated includes plating a protective paint layer.

[0044] The...

Embodiment 2

[0049] A metal surface treatment process, comprising:

[0050] 1) Carry out the pre-treatment process to the metal to be treated to remove the grease on the surface of the metal to be treated;

[0051] 2) Put the metal to be treated in a heating furnace, heat it to 50°C, and then place it in a mist atmosphere of 8% sodium hydroxide under a pressure of 1MPa for 30 seconds, then neutralize it with acid, wash and dry it. Dry;

[0052] 3) Put the dried metal to be treated in the sand blasting machine, use borax to treat the metal to be treated by sand blasting for 30 minutes, and then bury the metal to be treated after sand blasting in modified borax at 160°C under a pressure of 3MPa Infiltrate for 1 hour;

[0053] 4) The metal to be treated after the blasting treatment is cleaned, dried, and then subjected to surface coating treatment of the metal to be treated; the surface coating treatment of the metal to be treated includes plating a protective paint layer.

[0054] The prepa...

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PUM

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Abstract

The invention relates to a metal surface treating process. The process is characterized in that the metal to be treated is placed in a heating furnace to be heated, and then the metal is placed in analkali steam atmosphere and then neutralized by acid liquor; the dried to-be-treated metal is placed in a sand blasting machine, and performing sand blasting treatment on the to-be-treated metal by using borax, and then the to-be-treated metal which is subjected to sand blasting is embedded into the modified borax to permeate; and the to-be-treated metal which is subjected to the sanding treatmentis carrying out cleaning and drying, and coating treatment on the surface of the to-be-treated metal is carried out. According to the technical scheme, the borax polishing sand is adopted to replacethe ceramic sand blasting in the prior art, so that in the sand blasting process, part of borax permeates into the surface of the to-be-treated metal; then, the surface of the to-be-treated metal is treated through the modified borax, the infiltration amount of the borax on the surface of the to-be-treated metal is increased, and the surface of the to-be-treated metal is modified by vinyl alcohol,through the principle that the bonding force between the organic matter and the coating layer is larger than the bonding force between the metal surface and the coating layer, the scratch resistanceof the o-be-treated metal surface is improved, meanwhile, the color variety of the o-be-treated metal is increased.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, in particular to a metal 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] However, when...

Claims

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Application Information

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IPC IPC(8): B24C1/08C23C8/68
CPCB24C1/08C23C8/68
Inventor 应兴隆
Owner 宁波英科特精工机械股份有限公司