Disc-type electrostatic coating process for vehicle transmission shaft aqueous anticorrosion coating material

A technology for anti-corrosion coatings and water-based coatings, applied in anti-corrosion coatings, devices for coating liquid on surfaces, coatings, etc., to achieve the effects of increasing storage stability and improving compatibility

Active Publication Date: 2017-04-19
GUANGZHOU KINTE IND
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the objectives of the present invention is to provide a disc-type electrostatic coating process suitable for water-based anti-corrosion coatings for automobile drive shafts, to solve the problem of corrosion resistance of water-based one-component coatings for iron-based phosphating steel structures, low-temperature curing One-component coating off-line dryness, anti-adhesive problems and how one-component water-based coating technology meets the technical problems of sagging and leveling of disc electrostatic coating

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  • Disc-type electrostatic coating process for vehicle transmission shaft aqueous anticorrosion coating material
  • Disc-type electrostatic coating process for vehicle transmission shaft aqueous anticorrosion coating material

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[0029] Some specific examples are listed below to illustrate the present invention. It should be pointed out that the following specific examples are only used to further illustrate the present invention, and do not represent limitations to the protection scope of the present invention. Some non-essential modifications and adjustments made by others according to the present invention still belong to the protection scope of the present invention.

[0030] The preparation method of the oxidation-drying type epoxy phosphate resin in the embodiment 1~5: Add co-solvent ethylene glycol monobutyl ether and epoxy resin E03 to the reaction kettle, heat up to 160±5 ℃ to dissolve, at 600 rev / min Stir at a low speed, and then add fatty acid into the reaction kettle, the fatty acid is composed of palmitoleic acid and linolenic acid in a mass ratio of 1:1, and the temperature is raised to 200-240°C for fatty acid-epoxy ring-opening reaction, to the reactant The acid value of the acid value ...

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Abstract

The invention discloses a disc-type electrostatic coating process for a vehicle transmission shaft aqueous anticorrosion coating material, wherein an aqueous anticorrosion coating material is sprayed on a steel structure member by using a disc-type electrostatic spraying gun and then drying is performed, wherein the surface of the steel structure member is subjected to iron-based phosphating treatment, and the aqueous anticorrosion coating material comprises, by weight, 50-70% of an oxidative drying type epoxy phosphate resin, 5-15% of pigment and filler, 5-15% of a functional antirust pigment, 1-2% of a functional accelerant, and 10-20% of deionized water. The present invention further discloses the aqueous coating material. According to the present invention, the problem of the corrosion resistance of the aqueous single-component coating in the iron-based phosphating treatment of the steel structure member, the problems of the offline drying and the sticking resistance of the low-temperature curing single-component coating, and the technical problem of the meeting of the sagging and the leveling of the disc-type electrostatic coating with the single-component aqueous coating material technology are solved.

Description

technical field [0001] The invention relates to a coating process, in particular to a disk-type electrostatic coating process suitable for water-based anticorrosion coatings for automobile transmission shafts. Background technique [0002] Following the announcement of the "Volatile Organic Compounds Pollutant Discharge Pilot Measures" on October 1, 2015, replacing organic solvents with water has become an inevitable trend in the development of the coatings industry. Water-based anti-corrosion coatings use water as a solvent, which avoids safety problems such as flammability and explosion caused by organic solvents such as benzene, as well as environmental protection and health problems, and is more and more popular in the market. The car transmission shaft is a round tubular steel structure with thick wall and slow heat conduction. The workpiece is often treated with iron-based phosphating solution, and the surface is colored and smooth, so the corrosion resistance of the w...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D5/08C09D7/12C08F283/10C08F220/10C08F230/02C08G59/16
CPCB05D1/04B05D2202/10B05D2504/00C08F283/105C08G59/1472C08K3/04C08K3/22C08K3/32C08K3/36C08K13/02C08K2003/2265C08K2003/328C08K2201/014C09D5/084C09D5/086C09D7/61C09D151/08C08F220/10
Inventor 许奕祥姚煌张红
Owner GUANGZHOU KINTE IND
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