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Surface water-based preserving agent for GCr15 steel

A water-based, corrosion inhibitor technology, applied in the direction of metal material coating technology, can solve the problems of human health and environmental hazards, failure to meet customer needs, low alloy content, etc., to achieve strong corrosion resistance, excellent material selection, Excellent construction performance

Inactive Publication Date: 2016-08-31
ANHUI KAILIN ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] GCr15 steel is a high-carbon chromium bearing steel with less alloy content, good performance and the most widely used. After quenching and tempering, it has high hardness, uniform structure, good wear resistance and high contact fatigue. Performance, in order to improve the corrosion resistance of GCr15 steel surface, it is necessary to carry out anti-rust treatment on the surface of GCr15 steel, and most of the anti-rust processes in my country are treated with chromic acid or dichromate solution, and the raw materials contain hexavalent Chromium and trivalent chromium cause serious harm to human health and the environment, are highly toxic, and fail to meet customer needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of GCr15 steel surface water-based sealing agent described in the present embodiment is made of the following components in mass percentage: deionized water 24%, corrosion inhibitor 16%, 10% tannic acid solution 14%, potassium sorbate 2 %, sodium carbonate 3%, triethanolamine 8%, polyisobutylene 2%, guar gum 5%, kale gum 3%, mixed alcohol 12%, concentrated phosphoric acid 4%, dextrose essence 4%, wetting agent 2%, Silicone defoamer 1%.

[0041] The corrosion inhibitor described in this example is obtained by mixing and stirring ammonium metatungstate and mercaptobenzothiazole for 18 minutes. The mass percentage of ammonium metatungstate and mercaptobenzothiazole is 66%:34%.

[0042] The mixed alcohol described in this example is obtained by mixing and stirring isopropanol and dodecanethiol at a temperature of 88° C. and a pressure of 360 KPa for 13 minutes. The mass percentage of the isopropanol and dodecanethiol is 52%:48%.

[0043] The wetting agent described ...

Embodiment 2

[0060] A kind of GCr15 steel surface water-based sealing agent described in the present embodiment is made of the following components by mass percentage: deionized water 24%, corrosion inhibitor 14%, 10% tannic acid solution 16%, potassium sorbate 2 %, 4% sodium carbonate, 6% triethanolamine, 3% polyisobutylene, 3% guar gum, 5% squash gum, 10% mixed alcohol, 6% concentrated phosphoric acid, 3% dextrose essence, 3% wetting agent, Silicone defoamer 1%.

[0061] The corrosion inhibitor described in this example is obtained by mixing and stirring ammonium metatungstate and mercaptobenzothiazole for 15 minutes. The mass percentage of the ammonium metatungstate and mercaptobenzothiazole is 70%:30%.

[0062] The mixed alcohol described in this example is obtained by mixing and stirring isopropanol and dodecanethiol at a temperature of 90° C. and a pressure of 350 KPa for 15 minutes. The mass percentage of the isopropanol and dodecanethiol is 50%:50%.

[0063] The wetting agent desc...

Embodiment 3

[0080] A kind of GCr15 steel surface water-based sealing agent described in the present embodiment is made of the following components by mass percentage: deionized water 20%, corrosion inhibitor 18%, 10% tannic acid solution 11%, potassium sorbate 3 %, sodium carbonate 2%, triethanolamine 9%, polyisobutylene 2%, guar gum 6%, kale gum 2%, mixed alcohol 15%, concentrated phosphoric acid 2%, dextrose essence 6%, wetting agent 2%, Silicone defoamer 2%.

[0081] The corrosion inhibitor described in this example is obtained by mixing and stirring ammonium metatungstate and mercaptobenzothiazole for 20 minutes. The mass percentage of the ammonium metatungstate and mercaptobenzothiazole is 60%:40%.

[0082] The mixed alcohol described in this example is obtained by mixing and stirring isopropanol and dodecanethiol at a temperature of 85° C. and a pressure of 380 KPa for 10 minutes. The mass percentage of the isopropanol and dodecanethiol is 60%:40%.

[0083] The wetting agent descri...

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PUM

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Abstract

The invention discloses a surface water-based preserving agent for GCr15 steel. The surface water-based preserving agent is composed of, by weight, 20-24% of deionized water, 14-18% of corrosion inhibitors, 11-16% of 10% tannic acid solutions, 2-3% of potassium sorbate, 2-4% of sodium carbonate, 6-9% of triethanolamine, 2-3% of polyisobutene, 3-6% of guar gum, 2-5% of sesbania gum, 10-15% of mixed alcohols, 2-6% of strong phosphoric acid, 3-6% of grape saccharin, 2-3% of wetting agents and 1-2% of defoaming agents. According to the surface water-based preserving agent, the selected materials are superior, the scientific processing method is adopted, and rust protection and film formation act together; the deionized water serving as a dispersion medium is matched with the other raw materials, the environment friendliness is high, and pollution is avoided. In addition, the surface water-based preserving agent is free of methylbenzene, ethylbenzene, dimethylbenzene, chromic acid, sodium nitrite and formaldehyde, low in volatile organic compound (VOC), free of pungent smells and harmless to the human body, can be easily absorbed by deep structures, can effectively protect the surface of the steel against corrosion, cavitation and scale formation, can form a protective film layer, can delay the time of generating rusts on the surface of the steel and has remarkable environmental benefits, economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of steel surface treatment agents, in particular to a GCr15 steel surface water-based sealing agent. Background technique [0002] GCr15 steel is a high-carbon chromium bearing steel with less alloy content, good performance and the most widely used. After quenching and tempering, it has high hardness, uniform structure, good wear resistance and high contact fatigue. Performance, in order to improve the corrosion resistance of GCr15 steel surface, it is necessary to carry out anti-rust treatment on the surface of GCr15 steel, and most of the anti-rust processes in my country are treated with chromic acid or dichromate solution, and the raw materials contain hexavalent Chromium and trivalent chromium cause serious harm to human health and the environment, are highly toxic, and fail to meet customer needs. Contents of the invention [0003] In order to solve the above problems, the present invention discloses...

Claims

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Application Information

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IPC IPC(8): C23C22/40
CPCC23C22/40
Inventor 王和山朱建林王和东
Owner ANHUI KAILIN ADVANCED MATERIAL CO LTD
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