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Metal surface anti-corrosion treating agent and preparation method thereof

A metal surface treatment and metal surface technology, applied in the field of metal surface anti-corrosion treatment agent and its preparation, can solve the problems of corrosion resistance difference, coating film adhesion gap, etc., to improve coating film adhesion and corrosion resistance performance Effect

Active Publication Date: 2014-01-22
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

[0005] However, all chromate-free metal surface treatments or phosphate metal surface treatments in the prior art still cannot compare with the effect of using chromate or phosphate metal surface treatments, and there is also a difference in corrosion resistance, and the subsequent There is also a gap in the coating film adhesion

Method used

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Embodiment 1

[0037]A metal surface treatment agent consisting of titanium fluoride, zirconium nitrate, zirconium fluoride, peroxovanadic acid, aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxy Silyl) hexane composition; titanium fluoride, zirconium nitrate and zirconium fluoride account for 110-140ppm of the total treatment agent in terms of metal elements, wherein the ratio of titanium fluoride to zirconium nitrate and zirconium fluoride metal element atoms The ratio of metal element atoms of zirconium nitrate and zirconium fluoride is 1:3; the ratio of metal element atoms of zirconium nitrate and zirconium fluoride is 2:5; 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane in a molar ratio of 17:3, wherein 1,2-bis(triethoxysilyl)ethane and bis(tri Ethoxysilyl)hexane in a molar ratio of 1:1.

Embodiment 2

[0039] A metal surface treatment agent consisting of titanium fluoride, zirconium nitrate, zirconium fluoride, aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane Composition of alkane; titanium fluoride, zirconium nitrate and zirconium fluoride account for 550-650ppm of the total treatment agent in terms of metal elements, wherein the ratio of titanium fluoride to zirconium nitrate and zirconium fluoride metal element atoms is 1:1, The metal element atom ratio of zirconium nitrate and zirconium fluoride is 2:5; perovanadic acid accounts for 30ppm of the total treatment agent in terms of metal elements; aminosilane and 1,2-bis(triethoxysilyl) Ethane and bis(triethoxysilyl)hexane in a molar ratio of 9:1, wherein, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl) base) hexane in a molar ratio of 1:1.

[0040] The preparation method of metal surface treatment agent,

[0041] First, condensate I was prepared by hydrolysis of p-aminosilane, 1,2-bis(trieth...

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Abstract

The invention relates to a metal surface anti-corrosion treating agent and a preparation method thereof. The metal surface anti-corrosion treating agent comprises titanium fluoride, zirconium nitrate, zirconium fluoride, peroxy-vanadic acid, aminosilane, 1,2-bis(triethoxysilyl)ethane and bis(triethoxysilyl)hexane, wherein the titanium fluoride, the zirconium nitrate and the zirconium fluoride account for 110-1400ppm or 550-650ppm of the total amount of the treating agent if converted into metallic elements, the ratio of metallic element atoms of the titanium fluoride, the zirconium nitrate and the zirconium fluoride is 1:1-1:3, the ratio of metallic element atoms of the zirconium nitrate and the zirconium fluoride is 2:5, the molar ratio of the aminosilane to the 1,2-bis(triethoxysilyl)ethane and the bis(triethoxysilyl)hexane is 17:3-9:1, and the molar ratio of the 1,2-bis(triethoxysilyl)ethane to the bis(triethoxysilyl)hexane is 1:1.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, and specifically refers to a metal surface anticorrosion treatment agent and a preparation method thereof. Background technique [0002] To improve the corrosion resistance of metal surfaces, metal surfaces are often treated with chromates or treated with phosphates. However, the waste water in the metal surface treatment process using chromate or phosphate has serious damage to the environment and the health of workers. With the increasing awareness of environmental protection in the world, the use of chromate or phosphate is now subject to strict restrictions. [0003] Although the harm to workers is relatively small in the process of metal surface treatment with phosphate, the problem of rich phosphating in the subsequent wastewater is serious, and the use of chromium-containing salts is inevitable in the process of using phosphate. Therefore, now Many countries have banned the use of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34
CPCC23C2222/20
Inventor 应兴隆
Owner 宁波英科特精工机械股份有限公司
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