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Production method of color coated sheet

A production method and technology for color-coated plates, which are applied to devices for coating liquid on surfaces, coatings, pre-treatment surfaces, etc., can solve the problems of reduced service life, shortened service life, accelerated corrosion rate, etc., and improved service life. , The effect of reducing production cost and high production efficiency

Inactive Publication Date: 2010-04-14
王连成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The service life of color-coated plates produced by this process is very different in different regions and different parts of use. For example, in industrial areas or coastal areas, the corrosion rate is accelerated and the service life is greatly improved due to the action of harmful gases or salt in the air. In the rainy season, the coating is soaked by rain for a long time or in the parts where the temperature difference between day and night is too large and easy to condense, it will be corroded quickly, and the service life will be reduced. Some color-coated plates will be corroded and perforated after only one or two years of use.

Method used

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  • Production method of color coated sheet
  • Production method of color coated sheet
  • Production method of color coated sheet

Examples

Experimental program
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Effect test

Embodiment 1

[0015] like figure 1 , image 3 As shown, the whole roll of cold-rolled steel sheet (galvanized sheet can also be used) is used as the base material to be coated. After uncoiling, it goes through the entrance looper, degreasing tank, cleaning tank, phosphating tank and cleaning tank for degreasing, cleaning, phosphating, Cleaning treatment; then the plate to be coated after pretreatment is used as the cathode and immersed in the electrophoretic tank for electrophoretic coating. The electrophoretic coating can be selected from water-soluble epoxy resin, amino, alkyd, acrylic acid, polyester paint, etc. 350V, time 1-3 minutes, according to the area and location of the color-coated plate, the electrophoresis process parameters can be adjusted within the above range, such as setting the electrophoresis voltage 100V, time 3 minutes or electrophoresis voltage 350V, time 1 minute or electrophoresis voltage 150V , time of 2 minutes, to get the corresponding thickness of the paint fil...

Embodiment 2

[0017] like figure 2 , image 3 As shown, with a single cold-rolled sheet (galvanized sheet can also be used) as the substrate, the single or multiple substrates to be coated, the present embodiment takes three as an example, and the hanging device is used to mount and move simultaneously. Carry out degreasing, cleaning, phosphating, and cleaning treatments in the degreasing tank, cleaning tank, phosphating tank, and cleaning tank in sequence; then use the pre-treated plate to be coated as the cathode and immerse it in the electrophoresis tank through the hanging device for electrophoretic coating , The electrophoretic coating can be selected from water-soluble epoxy resin, amino, alkyd, acrylic, polyester paint and other electrophoretic paints, the electrophoretic voltage is 100-350V, and the time is 1-3 minutes. Adjust the electrophoresis process parameters within the scope, such as setting electrophoresis voltage 100V, time 3 minutes or electrophoresis voltage 350V, time ...

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Abstract

The invention relates to a production method of a color coated sheet, which can solve the problems that the existing color coated sheet has high corrosion speed and greatly reduced service life due to the action of harmful gases or salt content in the air in industrial areas or coastal areas. The production method comprises the following steps: firstly, a substrate to be coated is degreased, cleaned, phosphorized and cleaned, and then immersed into an electrophoresis tank as a cathode for electro-coating, with the electrophoresis voltage being 100-350V and time being 1-3 minutes; and after coating, the substrate is cleaned, dried, and sprayed or coated with finish paint, thus obtaining the color coated sheet. The production method has the advantages that: coatings with different film thickness but uniformity can be obtained through the electro-coating, and electrophoresis process parameters are adjusted aiming at different electrophoresis coating varieties so as to obtain corrosion-resistant color coated sheet paint films which are used in different areas and at different positions, thus greatly improving the service life of the color coated sheet, and having good product appearance.

Description

technical field [0001] The invention relates to a method for producing a color-coated plate by using an electrophoretic coating process. Background technique [0002] Color-coated plate is a coating product obtained by applying organic materials to thin steel plates. It has light weight, beautiful appearance and good corrosion resistance, and can be directly processed. It is used in the construction industry, shipbuilding industry, vehicle manufacturing industry, and furniture industry. , the electrical industry, etc. provide a new type of raw material, which has played a good role in replacing wood with steel, efficient construction, energy saving, and pollution prevention. The production process of conventional color-coated sheets is: based on cold-rolled steel sheets or galvanized sheets, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), apply paint in a continuous method (roller coating method), after baking and The products made by cooli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/00B05D3/02B05D3/10
Inventor 王连成
Owner 王连成
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