High-temperature automotive intermediate paint suitable for electrostatic spraying of automatic robots and preparation method thereof

A technology of electrostatic spraying and robotics, applied in coatings, polyester coatings, etc., can solve problems such as severe personnel constraints, complex production processes, and power consumption, and achieve uniform spraying efficiency, obvious gloss improvement, and energy saving effects.

Inactive Publication Date: 2014-03-05
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional spraying method of metallic paint is: mid-spray painting→drying→spraying metallic color paint→spraying varnish→drying. This kind of production process adopts manual operation and manual spraying method, which is seriously restricted by personnel.
Intermediate coating can only be dried before spraying metallic paint and varnish. In terms of equipment, automobile manufacturers need to have two sets of spray booths and two sets of drying equipment, and the production process is quite complicated, which consumes energy and electricity.

Method used

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  • High-temperature automotive intermediate paint suitable for electrostatic spraying of automatic robots and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of automotive middle paint that significantly improves painting efficiency, the method comprises the following process steps:

[0029] (1) Put 40 kg of polyester resin, 40 kg of titanium dioxide, 1 kg of polyacrylate polymer, and 13 kg of methyl isobutyl ketone into the dispersion tank according to the formula requirements, and stir at high speed for 30 minutes;

[0030] (2) Grinding the above-mentioned mixed material to a fineness of less than 15 microns with a grinder;

[0031] (3) add 4 kilograms of polyester resins again, stir 10 minutes;

[0032] (4) Measure the solid content, and adjust the solid content of the coating to a theoretical value with 2 kilograms of methyl isobutyl ketone;

[0033] (5) Use a conductive agent to adjust the resistance of the coating to a range suitable for the robot current

[0034] (6) After the solid content detection and electrical resistance are qualified, weigh and pack.

[0035] The theoretical value of the solid content ...

Embodiment 2

[0037] A kind of automotive middle paint that significantly improves painting efficiency, the method comprises the following process steps:

[0038] (1) Put 45 kg of polyester resin, 36 kg of titanium dioxide, 2 kg of polyacrylate polymer, and 12.5 kg of methyl isobutyl ketone into the dispersion tank according to the formula requirements, and stir at high speed for 30 minutes;

[0039] (2) Grinding the above-mentioned mixed material to a fineness of 18 microns with a grinder;

[0040] (3) add 3 kilograms of polyester resins again, stir 12 minutes;

[0041] (4) measure solid content, and adjust coating to theoretical value with 1.5 kilograms of methyl isobutyl ketone;

[0042] (5) Use a conductive agent to adjust the resistance of the coating to a range suitable for the robot current

[0043] (6) After the solid content detection and electrical resistance are qualified, weigh and pack.

[0044] The theoretical value of the solid content in the above step (4): 60wt%, the res...

Embodiment 3

[0046] A kind of automotive middle paint that significantly improves painting efficiency, the method comprises the following process steps:

[0047] (1) Put 48 kg of polyester resin, 35 kg of titanium dioxide, 2.5 kg of polyacrylate polymer, and 12.5 kg of methyl isobutyl ketone into the dispersion tank according to the formula requirements, and stir at high speed for 17 minutes;

[0048] (2) Grinding the above-mentioned mixed material to a fineness of 18 microns with a grinder;

[0049] (3) Add 1 kilogram of polyester resin again, stir for 12 minutes;

[0050] (4) measure solid content, and adjust coating to theoretical value with 1 kilogram of methyl isobutyl ketone;

[0051] (5) Use a conductive agent to adjust the resistance of the coating to a range suitable for the robot current

[0052] (6) After the solid content detection and electrical resistance are qualified, weigh and pack.

[0053] The theoretical value of the solid content in the above step (4): 60wt%, the re...

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Abstract

The invention relates to a high-temperature automotive intermediate paint suitable for the electrostatic spraying of automatic robots and a preparation method thereof. The high-temperature automotive intermediate paint comprises the following components in part by weight: 35-65 parts of a resin, 20-40 parts of pigments and fillers, 0.5-5 parts of auxiliaries, and 10-30 parts of a solvent. When an automatic electrostatic robot sprays the intermediate paint, the coating process is implemented sequentially through the steps of spraying the intermediate paint, air-drying the intermediate paint, spraying a metallic colored paint, air-drying the metallic colored paint, spraying an overcoat varnish, and drying the overcoat varnish, so that compared with traditional coating processes, intermediate coating is implemented without drying firstly, therefore, the process is relatively simple and easy to operate, and to a certain extent, the energy consumption is saved by one time, the production efficiency is increased by over two times, and the labor cost is reduced.

Description

technical field [0001] The invention relates to a high-temperature automobile interior paint, in particular to a high-temperature automobile interior paint suitable for electrostatic spraying by an automatic robot and a preparation method thereof. Background technique [0002] The traditional spraying method of metallic paint is: mid-spray painting→drying→spraying metallic color paint→spraying varnish→drying. This kind of production process adopts manual operation and manual spraying method, which is seriously restricted by personnel. Intermediate coating can only be dried before spraying metallic paint and varnish. In terms of equipment, automobile manufacturers need to have two sets of spray booths and two sets of drying equipment, and the production process is quite complicated, which consumes energy and electricity. At present, more and more large automobile manufacturers have introduced automatic robot three-process electrostatic spraying production lines through equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/00C09D101/12C09D161/20C09D7/12C09D5/46
Inventor 谢平展
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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