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Preparation and using method of magnesium oxide film coating liquid

A technology of magnesium oxide and coating liquid, which is applied in the direction of coating, liquid chemical plating, metal material coating process, etc., to achieve the effect of uniform film layer, high pass rate of coating film and easy operation

Inactive Publication Date: 2018-12-21
BEIJING SHUGUANG AERO ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: to solve the problem of the processing method and the use of magnesium oxide coating solution for 1J22 material punching magnesium oxide film coating solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Example 1: XXXX product 1J22 material is punched with an outer diameter of ф20 and coated with a magnesium oxide film of 10-20um.

[0030] (1) Preparation of coating solution: take an appropriate amount of chemically pure or analytically pure 1000-1500 mesh of magnesium oxide, remove an appropriate amount of distilled water, and prepare a 10% mixed solution for later use. The mixed liquid is a mixture of magnesium oxide, a small amount of magnesium hydroxide, and water, and the color is off-white to milky white.

[0031] (2) Grinding: put the prepared coating solution into a salt grinder, and grind for 2 hours at a speed of 300 rpm.

[0032] (3) Stirring and filtering: Stir the ground coating liquid with a stirrer at a stirring speed of 100 rpm for 2 hours. After stirring the mixture, filter it twice with a 200-mesh screen, and use up the prepared coating solution within 3 hours after filtering.

[0033] when using it,

[0034] (1) Coating solution pre-heating: when ...

example 2

[0037] Example 2: XXXX product 1J22 material is punched with an outer diameter of ф60 and coated with a magnesium oxide film of 10-20um.

[0038] (1) Preparation of coating liquid: take an appropriate amount of chemically pure or analytically pure 1000-1500 mesh of magnesium oxide, remove an appropriate amount of distilled water, and prepare an 8% mixed solution for later use. The mixed liquid is a mixture of magnesium oxide, a small amount of magnesium hydroxide, and water, and the color is off-white to milky white.

[0039] (2) Grinding: put the prepared coating solution into a salt grinder, and grind for 2 hours at a speed of 310 rpm.

[0040] (3) Stirring and filtering: Stir the ground coating liquid with a stirrer at a stirring speed of 100 rpm for 2 hours. After stirring the mixture, filter it twice with a 200-mesh screen, and use up the prepared coating solution within 4 hours after filtering.

[0041] when using it,

[0042] (1) Coating liquid pre-heating: when usin...

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Abstract

The invention belongs to the technical field of surface treatment and relates to the preparation and a using method of magnesium oxide film coating liquid, and particularly relates to a preparing process method of 1J22 material punching sheet magnesium oxide film coating liquid and the use of magnesium oxide coating liquid. The invention solves the problems of the preparation of the 1J22 materialpunching sheet magnesium oxide film coating liquid and the use of the thermal coating method of the coating liquid. The prepared coating liquid is subjected to high-speed grinding refining and high-speed stirring treatment, so that the magnesium oxide in the mixed liquid is completely refined, uniformly, and dispersed into the mixed liquid to form an off-white to milky white emulsion. Before coating, the magnesium oxide film coating liquid is pre-heated, and the surface of the part is also pre-heated to above 120 DEG C, so that the moisture in the coating liquid is quickly dried and vaporizedduring coating, and a uniform magnesium oxide coating film is formed on the surface of the part. According to the preparation and using method of magnesium oxide film coating liquid, no baking is required before coating, the film layer and the color are uniform, the number of stacked sheets is not affected, and since the concentration of the mixed liquid is low and the emulsion mixed liquid is formed by grinding and stirring, the emulsion mixed liquid can form a more uniform film layer during thermal coating.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and relates to a method for preparing and using a magnesium oxide film coating solution. In particular, it relates to a process method for preparing magnesia thin coating solution for sheet punching of 1J22 material and the use of magnesium oxide coating solution. Background technique [0002] At present, the process steps commonly used for magnesia coating solution on the surface of 1J22 material are: preparing coating solution - stirring and filtering - first coating - first baking - second coating - second baking Baking—3rd coating—3rd baking—inspection. The magnesium oxide coating layer treated by this process is generally thicker, the coating film is rougher, and the coating film thickness is at least 40-50um. Generally, there is a requirement for the number of sheets when punching and stacking. If the film thickness is too thick, it will affect the stacking. Count (the number of...

Claims

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Application Information

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IPC IPC(8): C23C18/12
CPCC23C18/1216C23C18/1241
Inventor 李忠山司雨欣李宇飞郑昭卓
Owner BEIJING SHUGUANG AERO ELECTRICAL
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