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Metal anti-corrosive treatment agent and application method thereof

A technology of metal anti-corrosion and application method, which is applied in the direction of metal material coating process, etc., can solve the problems of insufficient environmental protection and complicated process, and achieve the effect of good environmental protection, simple process and anti-corrosion

Active Publication Date: 2018-07-24
湖南倍德睿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing metal surface anti-corrosion methods use chromate to chemically treat the metal substrate, forming a dense chemical passivation film on the surface of the metal substrate to protect the metal. The general process includes: degreasing - washing - passivation Chemical-washing-drying, etc., the process is complicated, and industrial wastewater containing heavy metal ions is produced at the same time, which is not environmentally friendly

Method used

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  • Metal anti-corrosive treatment agent and application method thereof
  • Metal anti-corrosive treatment agent and application method thereof
  • Metal anti-corrosive treatment agent and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The metal anti-corrosion treatment agent includes the following raw materials in weight percentage: 0.3% zirconium fluoride, 0.6% zirconium phosphate, 0.5% phosphoric acid, 0.5% polyacrylate, and the balance is water; the above-mentioned metal anti-corrosion treatment agent is brushed and coated on the aluminum foil The surface of the substrate is baked at 180° C. for 5 minutes to obtain the metal anti-corrosion part of this embodiment.

Embodiment 2

[0034] The metal anticorrosion treatment agent comprises the following raw materials in weight percentage: 2% chromium fluoride, 3% chromium phosphate, 2% phosphoric acid, 2% phenolic resin, and the balance is water; the above-mentioned metal anticorrosion treatment agent is coated on stainless steel by roll coating The surface of the substrate was baked at 250° C. for 5 minutes to obtain the metal anti-corrosion part of this embodiment.

Embodiment 3

[0036]The metal anti-corrosion treatment agent comprises the following raw materials in weight percentage: 0.1% of hafnium fluoride, 0.2% of hafnium phosphate, 0.2% of phosphoric acid, 0.2% of polytetrafluoroethylene, and the balance is water; the above-mentioned metal anti-corrosion treatment agent is dip-coated on The surface of the aluminum alloy substrate was baked at 150° C. for 5 minutes to obtain the metal anti-corrosion part of this embodiment.

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Abstract

The invention relates to the technical field of anti-corrosion, in particular to a metal anti-corrosive treatment agent, a metal anti-corrosive part and a preparation method thereof. The metal anti-corrosive treatment agent comprises, by weight, 0.1%-2% of metal fluoride salt, 0.2%-3% of phosphates, 0.2%-2% of phosphoric acid, 0. 2%-2% of high molecular polymers, and the balance water; and the pHof the anti-corrosive treatment agent is 3-4. The metal fluoride salt and the phosphates of the metal anti-corrosive treatment agent can form a dense anti-corrosive protective layer on the surface ofa metal substrate under the action of the high molecular polymers, so that the surface corrosion of the metal substrate is prevented, raw materials are good in environmental protection property, and the anti-corrosion effect is good. The preparation method of the metal anti-corrosive treatment agent can directly apply the metal anti-corrosive treatment agent to the surface of the metal substrate for drying without activation in advance, the process is simple, environmental protection property is good, and the anti-corrosion effect is good.

Description

technical field [0001] The invention relates to the field of anticorrosion technology, in particular to a metal anticorrosion treatment agent and an application method thereof. Background technique [0002] In order to reduce or prevent metal corrosion, the most common method is to coat the metal surface with an anti-corrosion coating to isolate the corrosive medium from contacting the metal substrate. Most of the existing metal surface anti-corrosion methods use chromate to chemically treat the metal substrate, forming a dense chemical passivation film on the surface of the metal substrate to protect the metal. The general process includes: degreasing - washing - passivation Chemical-washing-drying, etc., the process is complicated, and industrial wastewater containing heavy metal ions is produced at the same time, which is not environmentally friendly. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, one of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/36
CPCC23C22/36
Inventor 周秦政
Owner 湖南倍德睿新材料科技有限公司