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Magnesium-containing coating composition for automotive ball joint assembly and use thereof

A coating composition, the technology of the composition, applied in the direction of coating, anti-corrosion coating, device for coating liquid on the surface, etc., can solve the problems of surface coating damage, high cost, heavy weight, etc.

Active Publication Date: 2021-09-10
SHAOXING SHUNTAI MASCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently commonly used automobile ball joint assembly is composed of multiple parts, which is costly and heavy. In particular, the existing automobile ball joint assembly needs to be riveted because the cover plate needs to be riveted, and the surface coating is easy after riveting. It is damaged by wear and tear, and at the same time causes the inner carbon steel to be exposed to the air, which is easy to rust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Stir 40 g of tri-tert-butoxyaluminum and 10 g of triethanolamine in 35 g of ethylene glycol monobutyl ether, slowly add 15 g of tartaric acid during the stirring process, and stir at room temperature for 6 hours to obtain a mixture 1A;

[0086] 4g of cellulose acetate butyrate with a butyryl content of 32wt% was dissolved in 26.4g of ethylene glycol monobutyl ether, slowly added dropwise 0.1g of benzoyl peroxide and 12g of methyl methacrylate, and then 7.5g of average particle size Magnesium nanoparticles with a diameter of 620nm were stirred to make them evenly mixed, then heated to 45°C, reacted for 1h under reflux conditions, and cooled to room temperature to obtain a mixture 1B;

[0087] 56g of mixture 1A, 34g of mixture 1B, 2g of PEG300 and 8g of glycerin were stirred evenly at 1500rpm, and then filtered through a 250-mesh filter to obtain mixture 1C.

[0088] The mixture 1C was coated on the steel surface by roll coating, and baked at 300° C. for 30 minutes to obt...

Embodiment 2

[0093] Stir 45g of aluminum tri-tert-butoxide and 12g of triethanolamine in 31g of ethylene glycol monobutyl ether evenly, slowly add 12g of tartaric acid during the stirring process, and stir at room temperature for 4h to obtain mixture 2A;

[0094] 3g of cellulose acetate butyrate with a butyryl content of 32wt% was dissolved in 30.4g of ethylene glycol monobutyl ether, slowly added dropwise 0.1g of benzoyl peroxide and 10.5g of methyl methacrylate, and then 6g of average grain Magnesium nanoparticles with a diameter of 620nm were stirred to make them evenly mixed, then heated to 50°C, reacted for 0.5h under reflux conditions, and cooled to room temperature to obtain a mixture 2B;

[0095] 58g of mixture 2A, 32g of mixture 2B, 2g of PEG300 and 8g of glycerin were stirred evenly at 1500rpm, and then filtered through a 250-mesh filter to obtain mixture 2C.

[0096] The mixture 2C was coated on the steel surface by roll coating, and baked at 250° C. for 40 minutes to obtain a m...

Embodiment 3

[0101] Stir 35g of tri-tert-butoxyaluminum and 8g of triethanolamine in 39g of ethylene glycol monobutyl ether evenly, slowly add 18g of tartaric acid during the stirring process, and stir at room temperature for 5h to obtain mixture 3A;

[0102] Dissolve 5g of cellulose acetate butyrate with a butyryl content of 32wt% in 30.9g of ethylene glycol monobutyl ether, slowly add 0.1g of benzoyl peroxide and 15g of methyl methacrylate dropwise, and then add 9g of average particle size 620nm magnesium nanoparticles, stirred to mix evenly, then heated to 40°C, reacted under reflux for 2h, cooled to room temperature, and obtained mixture 3B;

[0103] 54g of mixture 3A, 36g of mixture 3B, 2g of PEG300 and 8g of glycerin were stirred evenly at 1500rpm, and then filtered through a 250-mesh filter to obtain mixture 3C.

[0104] The mixture 3C was coated on the steel surface by roll coating, and baked at 250° C. for 40 minutes to obtain a magnesium-containing coating, and the thickness of t...

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Abstract

Disclosed is a coating composition for an automobile ball joint assembly and its use; the composition includes a first composition and a second composition, the first composition includes an alkoxy aluminum compound; the second composition Contains modified magnesium nanoparticles. The samples obtained from the coating composition not only have better corrosion resistance, but also better wear resistance. Relevant technical indicators can make it fully meet the coating performance requirements for automotive ball joint assemblies.

Description

technical field [0001] The invention belongs to the field of automobile materials; it relates to a coating composition for an automobile ball joint assembly and its application; more specifically, it relates to a magnesium-containing coating composition for an automobile ball joint assembly and its application . Background technique [0002] Currently, ball joints are the most important components of the suspension and steering systems of modern automobiles. It is crucial to the safety of driving and the stability of operation of the car. As the guide and force transmission element of the automobile suspension system, the ball joint assembly acts between the wheel and the frame to transmit force and moment. The ball joint used in the swing arm acts as a ball joint. Together with the bushing, the wheel and the body are elastically connected together to buffer the impact force transmitted from the uneven road to the frame or body, so that the wheel can follow a certain track...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/02C09D7/61C09D5/08C09D5/10B05D1/28B05D1/00B05D3/02B05D7/14B05D7/24
CPCB05D1/28B05D1/60B05D3/0254B05D7/14B05D7/24B05D2202/10C08K2003/222C08K2003/2227C09D5/08C09D5/10C09D151/02C09D7/61C08K3/08C08K3/22
Inventor 丁鹏
Owner SHAOXING SHUNTAI MASCH TECH CO LTD