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Preparation method of electrophoretic paint for automobile hub paint coating

An automotive wheel hub and electrophoretic paint technology, applied in electrophoretic coatings, coatings, epoxy coatings, etc., can solve the problems of high drying cost, large heat capacity, and impermeability of baking, so as to reduce the coating cost and curing temperature. , the effect of improving quality and performance

Inactive Publication Date: 2018-04-20
BENGBU FUWOTE WHEEL MFG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, ordinary cathodic electrophoretic coatings need to be baked at a high temperature of 180°C / 30min. Not only is the drying cost high and energy consumption is high, but more importantly, the coated object may be strained at high temperature or baked impermeable due to large heat capacity.

Method used

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  • Preparation method of electrophoretic paint for automobile hub paint coating
  • Preparation method of electrophoretic paint for automobile hub paint coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The preparation method of the electrophoretic paint that is used for automobile wheel hub coating, the steps are as follows:

[0057] (1) Add synthetic resin, 1 / 2 part of pH regulator, and emulsifier into the batching basin in turn, start stirring, stir at 900 rpm for half an hour, disperse evenly, and make a premix for later use;

[0058] (2) Add deionized water and anti-wear agent into the reaction kettle, start stirring, slowly add (1) pre-mixture at 600 rpm, and continue stirring for 1 hour after adding;

[0059] (3) Then add stabilizer and continue to stir for 0.6 hours;

[0060](4) After the stirring is completed, heat the quick-setting agent to 55°C and add it to the reaction kettle to continue stirring for 1 hour;

[0061] (5) Add the water-based emulsion into the reactor, and stir evenly at 200 rpm;

[0062] (6) Regulate the pH value with the remaining 1 / 2 part of the pH regulator, control the pH value to 5.0, stir evenly after the pH value is qualified.

Embodiment 2

[0064] The electrophoretic paint that is used for automobile wheel hub coating consists of the components of the following parts by weight:

[0065] 20 parts of synthetic resin, 1 part of acetic acid, 0.5 parts of alkyl imidazoline, 40 parts of deionized water, 15 parts of water-based emulsion, 1 part of anti-wear agent, 2 parts of accelerator, 3 parts of stabilizer;

[0066] Wherein the synthetic resin is made up of the composition of following parts by weight:

[0067] 30 parts of epoxy resin, 10 parts of co-solvent, 3 parts of amine hardener, 10 parts of ketimine, 5 parts of sucrose fatty acid ester, 8 parts of anhydrous disodium hydrogen phosphate, 5 parts of potassium carbonate, 3 parts of sodium thiosulfate 3 parts, 3 parts of pH regulator;

[0068] The aqueous emulsion is a mixture of sulfolane, gum arabic and deionized water, and the mixing ratio of each component is 1:2:5;

[0069] The anti-wear agent consists of: 10 parts of deionized water, 3 parts of furan resin,...

Embodiment 3

[0073] The electrophoretic paint that is used for automobile wheel hub coating consists of the components of the following parts by weight:

[0074] 30 parts of synthetic resin, 1.5 parts of lactic acid, 1 part of phenylethylphenol polyoxyethylene ether, 45 parts of deionized water, 120 parts of water-based emulsion, 2 parts of anti-wear agent, 3 parts of quick-setting agent, and 5 parts of stabilizer;

[0075] Wherein above-mentioned synthetic resin is made up of the composition of following parts by weight:

[0076] 35 parts of epoxy resin, 15 parts of co-solvent, 5 parts of amine hardener, 15 parts of ketimine, 6 parts of sucrose fatty acid ester, 10 parts of anhydrous disodium hydrogen phosphate, 10 parts of potassium carbonate, 5 parts of sodium thiosulfate 4 parts, 4 parts of pH regulator;

[0077] The aqueous emulsion is a mixture of sulfolane, gum arabic and deionized water, and the mixing ratio of each component is 1:2:5;

[0078] The anti-wear agent consists of: 13...

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Abstract

The invention discloses a preparation method of electrophoretic paint for automobile hub paint coating and relates to the technical field of automobile hub spray coating. The method comprises the following steps: adding synthetic resin, a pH regulator and an emulsifier sequentially into a dosing basin, and stirring for half an hour for later use; adding deionized water and an anti-wear agent intoa reactor, slowly adding a pre-mixture in (1) at a rate of 600 revolutions per minute, and stirring for an hour; adding a stabilizer for stirring; adding a setting accelerator into the reactor for stirring for an hour; adding waterborne emulsion into the reactor, and uniformly stirring at a rate of 200 revolutions per minute; regulating the pH value, and uniformly stirring after the pH value is qualified, thereby obtaining the product. According to the method disclosed by the invention, the stability of cathode electrophoretic paint can be improved, the molding and drying rate can be increased, and the protection and maintenance effect of the paint layer is improved; the electrophoretic paint can be cured in a low-temperature environment and has excellent stability, the obtained film is flat and smooth, and the film performance exceeds that of ordinary electrophoretic paint. Since the curing temperature is reduced, energy can be saved, and the coating cost is reduced.

Description

Technical field: [0001] The invention relates to the technical field of automobile wheel hub spraying, in particular to a preparation method of electrophoretic paint used for automobile wheel hub coating. Background technique: [0002] Electrophoretic paint, also known as electrophoretic paint, is becoming more and more popular as the defects of conventional spraying continue to emerge. Electrophoretic paint has also begun to be continuously updated, from anodic electrophoretic paint to cathodic electrophoretic paint, from single-component electrophoretic paint to two-component electrophoretic paint, the development of electrophoretic paint has also promoted the development of electrophoretic coating, so that more products are no longer Instead of using spray technology, electrophoresis is used. [0003] Electrophoretic coating has the characteristics of excellent corrosion resistance, good coverage, high degree of automation of coating equipment, less pollution, and high u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/44C09D7/63C09D7/61C09D7/65
CPCC09D5/4438C09D5/4473C09D5/4492
Inventor 年君
Owner BENGBU FUWOTE WHEEL MFG TECH