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Phosphate oxidation antirust treatment solution and antirust treatment process of steel part

A technology of anti-rust treatment and phosphate, which is applied in the coating process of metal materials, etc., can solve the problem of corrosion resistance reduction, and achieve the effect of small surface roughness and small impact

Inactive Publication Date: 2018-06-22
XIAN AERO ENGINE CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems in the background technology, the present invention provides a non-hydrogen embrittlement effect on components, which can solve the problem of reduced corrosion resistance after carburizing and nitriding on the surface of parts, and can replace cadmium-plated and galvanized parts. Phosphate oxidation anti-rust treatment liquid and anti-rust treatment process for iron and steel parts with dichromate passivation treatment, dense film layer and little influence on the surface roughness of components

Method used

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  • Phosphate oxidation antirust treatment solution and antirust treatment process of steel part
  • Phosphate oxidation antirust treatment solution and antirust treatment process of steel part
  • Phosphate oxidation antirust treatment solution and antirust treatment process of steel part

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Embodiment 1

[0034] The formula and the content of each component of the iron and steel parts phosphate oxidation antirust treatment solution adopted in the present embodiment are respectively barium nitrate 35g / L, zinc nitrate 15g / L, zinc phosphate 10g / L; Treatment process Phosphate oxidation anti-rust treatment of steel parts. 12CrNi3A iron and steel parts are subjected to phosphate oxidation anti-rust treatment, wherein the temperature of the solution is 80°C and the time is 10 minutes.

[0035] After the treatment process described in the present invention, the iron and steel parts are subjected to phosphate oxidation and antirust treatment to form a phosphate oxidation and antirust film layer. After the phosphate oxidation and antirust treatment, the iron and steel parts are subjected to a neutral salt spray test, and after 28 hours After that, no rust phenomenon was found, that is, the neutral salt spray test of the phosphate oxidation antirust film layer obtained by the antirust tre...

Embodiment 2

[0037] The formula and the content of each component of the iron and steel parts phosphate oxidation antirust treatment solution adopted in the present embodiment are respectively barium nitrate 35g / L, zinc nitrate 15g / L, zinc phosphate 10g / L; Treatment process Phosphate oxidation anti-rust treatment of steel parts. Carburize the steel parts of 12CrNi3A first (the thickness of the carburized layer is 0.03 mm), and then carry out the phosphate oxidation antirust treatment, wherein the temperature of the solution is 73 °C. Time 3 minutes.

[0038] After the treatment process described in the present invention, the iron and steel parts after carburizing are subjected to phosphate oxidation and antirust treatment to form a phosphate oxidation and antirust film layer, and at the same time, the iron and steel parts are subjected to a neutral salt spray test after the phosphate oxidation and antirust treatment , after 24 hours, no rust phenomenon was found, that is, the neutral salt...

Embodiment 3

[0040]The formula and the content of each component of the iron and steel parts phosphate oxidation antirust treatment solution adopted in the present embodiment are respectively barium nitrate 35g / L, zinc nitrate 15g / L, zinc phosphate 10g / L; Treatment process Phosphate oxidation anti-rust treatment of steel parts. The steel parts of 12CrNi3A are first nitrided (the thickness of the nitriding layer is 0.06 mm), and then phosphate oxidation antirust treatment is carried out, and the temperature of the solution is 73 ° C. Time 3 minutes.

[0041] After the treatment process described in the present invention, the iron and steel parts after nitriding are subjected to phosphate oxidation and antirust treatment to form a phosphate oxidation and antirust film layer, and at the same time, the iron and steel parts are subjected to a neutral salt spray test after the phosphate oxidation and antirust treatment , after 24 hours, no rust phenomenon was found, that is, the neutral salt sp...

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Abstract

The invention relates to a phosphate oxidation antirust treatment solution and an antirust treatment process of a steel part. The process comprises the steps of (1) cleaning the steel part to be subject to antirust treatment with a degreasing solution; (2) hanging the cleaned steel part for phosphate oxidation antirust treatment, wherein the antirust treatment temperature is 70 DEG C to 90 DEG C,and the antirust treatment time is 3 to 20 minutes; (3) immersing the steel part into mixed oil of HH-20 lubricating oil and No.180 aviation gasoline at room temperature for 10 to 15 minutes; and (4)drying. The phosphate oxidation antirust treatment solution and the antirust treatment process of the steel part have the advantages that no hydrogen embrittlement influence is generated on parts andassemblies, the problem of low corrosion resistance after carburization and nitridation of the surface of the part can be solved, the bichromate passivation treatment of cadmium plating and zinc plating parts can be replaced, films are compact, and the influence on the surface roughness of the parts and the assemblies is less.

Description

technical field [0001] The invention belongs to the field of material surface treatment, and relates to an anti-rust treatment liquid and an anti-rust treatment process, in particular to a phosphate oxidation anti-rust treatment liquid for iron and steel parts which can be used for anti-rust treatment of parts with carburized surfaces and nitriding surfaces and anti-rust treatment process. Background technique [0002] The existing treatment related to phosphate treatment includes the phosphating treatment of steel parts. This process is to put the metal parts into the monophosphate solution containing zinc, manganese or iron to undergo a chemical reaction, so that the surface of the metal parts becomes insoluble. Phosphate film, when the phosphate film is subjected to a neutral salt spray test, it can withstand 2 hours without corrosion of the base metal; since the total acidity of the phosphating solution is around 75 points, it also contains a certain amount of free acid....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/22C23C22/73
CPCC23C22/22C23C22/73
Inventor 马小昭刘静吴雨桥任可真马伟国周佳
Owner XIAN AERO ENGINE CONTROLS
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