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Technological method for performing static fluorocarbon spraying on surface of stainless steel

A process method, stainless steel technology, applied to the device for coating liquid on the surface, special surface, pretreated surface, etc., can solve the problems of poor adhesion between the coating film and stainless steel, unable to meet the actual use requirements, and limiting the application scope of stainless steel. , to achieve the effect of high work efficiency, easy control of surface quality and time saving

Active Publication Date: 2012-04-11
SHENYANG YUANDA ALUMINUM IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its own organizational structure, stainless steel is sprayed with conventional electrostatic fluorocarbon, and the adhesion between the coating film and stainless steel is poor. According to the national standard GB / T9286-1998 test method, the highest level can only reach level 2, which cannot meet the actual use requirements.
This limits the scope of application of stainless steel as a decorative material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take a stainless steel revolving door frame material as a sample, and conduct conventional electrostatic fluorocarbon spraying on it. The specific steps are:

[0020] (1) The sample is polished with sandpaper to remove rust and scars on the surface;

[0021] (2) Rinse the polished sample with clear water, then dry and dehydrate;

[0022] (3) Use a manual spray gun to carry out conventional electrostatic fluorocarbon spraying on the sample that has undergone the above pretreatment, choose DURANAR series PVDF coating produced by PPG Company, the color is orange, the spraying pressure is 0.4MPa, the electrostatic voltage is 45KV, and the total dry film thickness is 60μm;

[0023] (4) The sample in step (3) was cured at high temperature, the curing temperature was 232° C., and the curing time was 15 minutes, to obtain a sample with an orange coating film on the surface.

[0024] The national standard GB / T9286-1998 cross-cut inspection method was used to test, and the adhes...

Embodiment 2

[0026] Get the same certain stainless steel revolving door frame material as a sample, adopt the process of the present invention to spray it, and the concrete steps are:

[0027] (1) Soak the sample frame in ALUETCH degreasing solution produced by Henkel Company for 5 minutes to remove oil stains;

[0028] (2) Rinse the degreased sample with clear water, then dry and dehydrate;

[0029] (3) Use a manual spray gun to spray N7111-1 Bico metal nano-treatment agent on the surface of the sample after the above treatment, the spraying pressure is 0.4MPa, and the spraying thickness is 4 microns;

[0030] (4) Choose the DURANAR series PVDF paint produced by PPG Company, orange, using wet-on-wet coating operation, and carry out conventional electrostatic fluorocarbon spraying on the surface of the sample sprayed with metal nano-treatment agent, that is, spray the primer first, and then spray the topcoat , and finally spray varnish, spraying pressure 0.4MPa, electrostatic voltage 45KV...

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PUM

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Abstract

The invention relates to a technological method for performing static fluorocarbon spraying on a surface of stainless steel, and the method comprises the following steps of: (1) putting the stainless steel into an acid degreaser so as to remove greasy dirt on the surface of the stainless steel after soaking; (2) washing the greasy-dirt-removed stainless steel with water, dewatering and drying; (3) spraying a metal nanometer finishing agent on the processed surface of the stainless steel; (4) by using a wet-on-wet coating operation, performing general static fluorocarbon spraying on the processed surface of the stainless steel; and (5) obtaining a finished product after curing at a high temperature. By utilizing the technological method, decorative stainless steel materials with different colors can be manufactured; and furthermore, the adhesive force of a coating film is improved to 0 level so that actual use requirements are met.

Description

technical field [0001] The invention relates to metal surface coating treatment, in particular to a process method for electrostatic fluorocarbon spraying on the surface of stainless steel. Background technique [0002] Stainless steel is widely used in many fields such as construction, chemical industry, military and machinery because of its characteristics of corrosion resistance, weather resistance, flame retardancy and high strength. In some decoration projects, in order to overcome the defect that stainless steel is not coordinated with some surrounding occasions and environments due to its single color, it is often necessary to spray paint with various colors on the surface of stainless steel to achieve harmony and unity with the surrounding occasions and environmental colors. The effect, but also increase the stain resistance of stainless steel. However, due to its own organizational structure, stainless steel is sprayed with conventional electrostatic fluorocarbon, ...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D7/14B05D3/00B05D3/10
Inventor 吕立军
Owner SHENYANG YUANDA ALUMINUM IND GROUP
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