Metal stamping part surface treating agent and surface treatment process

A technology of metal stamping parts and surface treatment agent, which is applied in the direction of pretreatment surface, device for coating liquid on surface, paint containing biocide, etc. Extend the production cycle and other issues to achieve the effects of improving comprehensive protection performance, improving reactivity, and increasing drying rate

Inactive Publication Date: 2017-07-07
周楠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is widely used in the industrial field, especially in the field of metal surface coating, but the phosphating process mainly uses phosphate-based film-forming agents, and the phosphating slag produced is very harmful to the environment, especially to soil and water pollution. serious
Some of the existing improved surface treatment agents form an adsorption film on the metal surface. The process is simple, but it does not meet the requirements of the phosphating process. The protective effect against acid, alkali, salt, water, dust, etc. is poor, which reduces the service efficiency and life of metal stamping parts, and the drying rate is slow, prolonging the production cycle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Metal stamping parts surface treatment agent, including the following parts by mass: 25 parts of silica sol, 4 parts of vinyl acetate, 0.5 parts of alkyl glycoside, 4 parts of epoxy fatty acid methyl ester, 5 parts of alkyl alcohol amide, 4 parts of lithium silicate 2 parts, 2 parts of trifluoroethyl methacrylate, 3 parts of hydroxyl-terminated polydimethylsiloxane, and 15 parts of water.

[0021] The preparation method of metal stamping part surface treatment agent, the steps are as follows:

[0022] 1) Blend alkyl glucoside, epoxy fatty acid methyl ester, hydroxyl-terminated polydimethylsiloxane, and alkyl alcohol amide, and place it in a cold water bath for 2.5 hours with stirring. The temperature of the cold water bath is 1°C, and the stirring speed is For 40r / min, the mixture was obtained;

[0023] 2) Add the mixture into the silica sol, raise the temperature to 60°C, stir for 15 minutes first, then add lithium carbonate, vinyl acetate, trifluoroethyl methacrylate...

Embodiment 2

[0029] Metal stamping parts surface treatment agent, including the following parts by mass: 20 parts of silica sol, 2 parts of vinyl acetate, 1 part of alkyl glycoside, 5 parts of epoxy fatty acid methyl ester, 3 parts of alkyl alcohol amide, 3 parts of lithium silicate 3 parts, 3 parts of trifluoroethyl methacrylate, 5 parts of hydroxyl-terminated polydimethylsiloxane, and 20 parts of water.

[0030] The preparation method of metal stamping part surface treatment agent, the steps are as follows:

[0031] 1) Blend alkyl glucoside, epoxy fatty acid methyl ester, hydroxyl-terminated polydimethylsiloxane, and alkyl alcohol amide, and place it in a cold water bath for 2.5 hours with stirring. The temperature of the cold water bath is 4°C, and the stirring speed is For 40r / min, the mixture was obtained;

[0032] 2) Add the mixture to the silica sol, heat up to 65°C, stir for 10 minutes, then add lithium carbonate, vinyl acetate, trifluoroethyl methacrylate, and dihydrogen phosphat...

Embodiment 3

[0038] Surface treatment agent for metal stamping parts, made of the following parts by mass: 30 parts of silica sol, 5 parts of vinyl acetate, 1.5 parts of alkyl glycoside, 3 parts of epoxy fatty acid methyl ester, 6 parts of alkyl alcohol amide, 2 parts of lithium silicate 1 part, 1 part of trifluoroethyl methacrylate, 5 parts of hydroxyl-terminated polydimethylsiloxane, and 30 parts of water.

[0039] The preparation method of metal stamping part surface treatment agent, the steps are as follows:

[0040] 1) Blend alkyl glucoside, epoxy fatty acid methyl ester, hydroxyl-terminated polydimethylsiloxane, and alkyl alcohol amide, and place them in a cold water bath for 3 hours with stirring. The temperature of the cold water bath is 0°C, and the stirring speed is 40r / min, to get the mixture;

[0041] 2) Add the mixture to the silica sol, heat up to 65°C, stir for 10 minutes, then add lithium carbonate, vinyl acetate, trifluoroethyl methacrylate, dihydrogen phosphate successiv...

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Abstract

The present invention proposes a surface treatment agent and a surface treatment process for metal stamping parts. The surface treatment agent comprises the following parts by mass: 20-30 parts of silica sol, 1-5 parts of vinyl acetate, and 0.5-2 parts of alkyl glycoside , 2-5 parts of epoxy fatty acid methyl ester, 3-6 parts of alkanolamide, 2-4 parts of lithium silicate, 1-3 parts of trifluoroethyl methacrylate, 3 parts of hydroxyl-terminated polydimethylsiloxane ‑5 parts, water 0‑30 parts, made by heating, stirring, water bath, ultrasonic and other steps, combined with tung oil for the surface spraying treatment of metal stamping parts, greatly improving the wear resistance, corrosion resistance, corrosion resistance of metal stamping parts Rust, waterproof and stain-resistant properties, and strong bonding with the metal surface, with a certain degree of self-drying, which significantly improves the overall performance of metal stamping parts and prolongs the service life.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a surface treatment agent for metal stamping parts, that is, a surface treatment process. Background technique [0002] Metal surface treatment agent refers to the general term for various chemical agents for metal surface treatment. Metal surface treatment includes degreasing, rust removal, phosphating, antirust and other substrate pretreatments, which are prepared for metal coating technology and metal protection technology. The quality of substrate pretreatment has a great influence on subsequent coating preparation and metal use. big impact. At present, in the field of metal surface treatment, the phosphating process is the main method. The phosphating process is simple to operate and low in cost. After phosphating, a uniform and dense reaction film is formed on the metal surface. Therefore, it is widely used in the industrial field, especially in the field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C09D5/16C09D7/12C09D191/00B05D7/14B05D7/00B05D3/10
CPCC09D1/00B05D3/102B05D7/14B05D7/53C09D5/08C09D5/1656C09D5/1687C09D5/18C09D191/005
Inventor 周楠
Owner 周楠
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