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High-crack-resistance passivating agent

A passivation agent, high crack resistance technology, applied in the direction of metal material coating process, etc., can solve the problems of unable to meet market demand, poor crack resistance performance, etc., to achieve short passivation time, corrosion resistance and crack resistance performance Improved, good surface finish

Inactive Publication Date: 2018-08-24
TIANCHANG RUNDA METAL ANTIRUST AUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, although the passivating agent used for metal has a certain anti-rust effect, but other properties such as crack resistance are poor, and it is increasingly unable to meet the needs of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A high crack resistance passivator, its raw materials include by weight: 9 parts of secondary alkyl sodium sulfate, 10 parts of high magnesium powder, 8 parts of urotropine, 2 parts of organic phosphonic acid, 10 parts of barium metaborate , 1 part of polyoxyethylene laurate, 5 parts of N-phenyl-2-naphthylamine, 5 parts of anti-cracking agent, and 1 part of diethylenetriamine.

Embodiment 2

[0015] A high crack resistance passivator, its raw materials include by weight: 3 parts of secondary alkyl sodium sulfate, 20 parts of high magnesium powder, 4 parts of urotropine, 8 parts of organic phosphonic acid, 1 part of barium metaborate , 5 parts of polyoxyethylene laurate, 1 part of N-phenyl-2-naphthylamine, 15 parts of anti-cracking agent, 5 parts of diethylenetriamine;

[0016] Wherein, the preparation process of the anti-cracking agent is as follows: add ammonium phosphate to the attapulgite dispersion, heat up to 40° C., and stir for 70 minutes to obtain the anti-cracking agent.

Embodiment 3

[0018] A high crack resistance passivator, its raw materials include by weight: 7 parts of secondary alkyl sodium sulfate, 13 parts of high magnesium powder, 6 parts of urotropine, 5 parts of organic phosphonic acid, 5 parts of barium metaborate , 3 parts of polyoxyethylene laurate, 2.5 parts of N-phenyl-2-naphthylamine, 10 parts of anti-cracking agent, 3 parts of diethylenetriamine;

[0019] Wherein, the preparation process of the anti-cracking agent is as follows: add ammonium phosphate to the attapulgite dispersion, heat up to 60°C, and stir for 50 minutes to obtain the anti-cracking agent;

[0020] The weight ratio of the attapulgite to ammonium phosphate is 1.5:0.3.

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Abstract

The invention discloses a high-crack-resistance passivating agent. The high-crack-resistance passivating agent comprises, by weight, 3-9 parts of sec-alkyl sodium sulfate, 10-20 parts of high magnesium powder, 4-8 parts of urotropine, 2-8 parts of organic phosphonic acid, 1-10 parts of barium metaborate, 1-5 parts of polyoxyethylene monolaurate, 1-5 parts of N-phenyl-naphthylamine, 5-15 parts of anti-crack agents, and 1-5 parts of diethylenetriamine. The high-crack-resistance passivating agent has excellent rust resistance, abrasion resistance, corrosion resistance and crack resistance and ishigh in passivating efficiency and short in passivating time, a passivation film can be rapidly formed on the surface of metal, and the film is uniform and compact and has good surface smoothness.

Description

technical field [0001] The invention relates to the field of passivators, in particular to a highly crack-resistant passivator. Background technique [0002] Passivation is a method to transform the metal surface into a state that is not easily oxidized, and to delay the corrosion rate of the metal. In addition, the phenomenon of an active metal or alloy in which the chemical activity is greatly reduced and becomes a noble metal state is also called passivation. [0003] In the prior art, although passivators used for metals have a certain anti-rust effect, other properties such as crack resistance are relatively poor, and cannot meet market demands increasingly. Contents of the invention [0004] Based on the technical problems existing in the background technology, the present invention proposes a high-crack-resistant passivator, which has excellent anti-rust, wear-resistant, corrosion-resistant, and crack-resistant properties, and has high passivation efficiency and sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05
CPCC23C22/05
Inventor 林伟江海涛
Owner TIANCHANG RUNDA METAL ANTIRUST AUX
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