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A kind of painting process of coating pearl oil on the surface of metal plate

A surface coating and metal plate technology, which is applied to the surface coating liquid device, pretreatment surface, coating, etc., can solve the problems of composite layer temperature resistance, poor weather resistance, large-scale application of pearl paint, and preparation process Incomplete and other problems, to achieve the effect of good weather resistance, high scratch resistance, smooth and uniform paint surface

Active Publication Date: 2019-04-19
ZHENGZHOU JINTAI CANNER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the imperfection of the preparation process in the coating of the workpiece, the pearl powder in the pearl paint is easy to peel off from the workpiece, and it is easy to wrinkle. The composite layer after spraying has poor heat resistance and weather resistance. These factors make the pearl Large-scale application of lacquer has been hindered

Method used

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  • A kind of painting process of coating pearl oil on the surface of metal plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of painting process of metal plate surface coating pearl oil, its steps are as follows:

[0014] Step 1. Pre-treat the surface of the metal plate. The pre-treatment process includes degreasing, rust removal, water washing, and neutralization. The front side of the pre-treated metal plate is painted with white paint, and the reverse side is painted with gold oil. The temperature is 175- Bake on a 180°C oven for 20-25 minutes. The viscosity of the white paint is 110-120 Pa·s, the thickness of the white paint is 8-10μ, the viscosity of the gold oil is 80-110 Pa·s, and the thickness of the gold oil is 4-7μ.

[0015] Step 2, ink is applied to the front side of the metal plate treated in step 1, and baked on a baking bed at a temperature of 155-160°C for 20-25 minutes;

[0016] Step 3, pass the pearl oil on the metal plate after the above steps, the pearl oil is mixed with resin and pearl powder to form a liquid with a viscosity of 115-120Pa·s, the thickness of the pe...

Embodiment 2

[0018] A kind of painting process of metal plate surface coating pearl oil, its steps are as follows:

[0019] Step 1. Pre-treat the surface of the metal plate. The pre-treatment process includes degreasing, rust removal, water washing, and neutralization. The front side of the pre-treated metal plate is painted with white paint, and the reverse side is painted with gold oil. The temperature is 175 ° C. Bake on the baking sheet for 23 minutes. The viscosity of the white paint is 110 Pa·s, the thickness of the white paint is 10μ, the viscosity of the gold oil is 110 Pa·s, and the thickness of the gold oil is 7μ.

[0020] Step 2, ink the front side of the metal plate treated in step 1, and bake it on a baking bed with a temperature of 160°C for 25 minutes;

[0021] Step 3, put the pearl oil on the metal plate after the above steps, the pearl oil is mixed with resin and pearl powder to form a liquid with a viscosity of 115Pa·s, the thickness of the pearl oil on the metal plate i...

Embodiment 3

[0025] A kind of painting process of metal plate surface coating pearl oil, its steps are as follows:

[0026] Step 1. Pre-treat the surface of the metal plate. The pre-treatment process includes degreasing, rust removal, water washing, and neutralization. The front side of the pre-treated metal plate is painted with white paint, and the reverse side is painted with gold oil. The temperature is 179 ° C. Bake on the baking sheet for 25 minutes. The viscosity of the white paint is 119 Pa·s, the thickness of the white paint is 8μ, the viscosity of the gold oil is 103 Pa·s, and the thickness of the gold oil is 4μ.

[0027] Step 2, ink the front side of the metal plate treated in step 1, and bake it on a baking bed with a temperature of 157°C for 21 minutes;

[0028] Step 3, put the pearl oil on the metal plate after the above-mentioned steps, the viscosity of the pearl oil is 117Pa·s, the thickness of the pearl oil on the metal plate is 8μ, and the metal plate after the pearl oil...

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Abstract

The invention provides a paint coating process for coating surfaces of metal plates with pearl oil. The paint coating process comprises the following steps: step one, carrying out pretreatment on the surfaces of the metal plates, in which the pretreatment processes comprises oil removal, rust removal, water scrubbing and neutralization; coating the front surfaces of the metal plates subjected to pretreatment with white paint, coating the back surfaces of the metal plates subjected to pretreatment with gold oil, and roasting the metal plates for 20-25 minutes on a roasting bed at the temperature of 175-180 DEG C; step two, coating the front surfaces of the metal plates treated by the step one with ink and roasting the metal plates for 20-25 minutes on a roasting bed at the temperature of 155-160 DEG C; and step three, enabling the metal plates treated by the above steps to pass through pearl oil, in which the thickness of the pearl oil on the metal plates is 8-10 microns; and roasting the metal plates after passing through the pearl oil for 20-25 minutes on a roasting bed at the temperature of 155-165 DEG C. The surfaces of workpieces produced by the process are smooth and uniform in paint and thick in paint films; experiments of impact resistance test and adhesion test show that the qualification rate of products is greater than 80%.

Description

technical field [0001] The invention belongs to the painting process of paint, in particular to a painting process for coating the surface of a metal plate with pearl oil. Background technique [0002] Pearl paint contains many different thicknesses of translucent pearl powder. Due to the translucency of pearl powder itself, when the sun shines on it, it will be refracted many times, and through the pearl powder, it will reflect the color of the bottom layer of the paint, so it has a deep and three-dimensional feeling. However, due to the imperfection of the preparation process in the coating of the workpiece, the pearl powder in the pearl paint is easy to peel off from the workpiece, and it is easy to wrinkle. The composite layer after spraying has poor heat resistance and weather resistance. These factors make the pearl Large-scale application of lacquer has been hindered. Contents of the invention [0003] The purpose of the present invention is to overcome the defici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D7/24B05D3/12B05D3/02
Inventor 刘秋珍郭建航宋宝军
Owner ZHENGZHOU JINTAI CANNER