Preparation method of scratch-resistant and wear-resistant color coat steel plate

A technology for color-coated steel plates and substrates, applied in coatings, devices for applying liquid to surfaces, pre-treatment surfaces, etc., can solve the problems of cracking and exploding paint films, poor T-bending performance, and easy damage to paint films. , to achieve the effect of improving adhesion, good bending performance and less equipment investment

Inactive Publication Date: 2010-03-10
SUZHOU YANGTZE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two types of color-coated steel plates are the most commonly used and typical application examples at present. The former is the color-coated steel plate for construction. It is prone to cracking and explosion of the paint film; the latter is the color-coated steel plate for home appliances. When it is used in products that require anti-friction and anti-scratch, it is easy to be damaged during processing or use because of its soft paint film

Method used

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  • Preparation method of scratch-resistant and wear-resistant color coat steel plate
  • Preparation method of scratch-resistant and wear-resistant color coat steel plate
  • Preparation method of scratch-resistant and wear-resistant color coat steel plate

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0039] Using galvanized substrate as the base material, the continuous automatic production process of scratch-resistant and wear-resistant color-coated steel sheets is as follows:

[0040] Unbooking→Spray degreasing I→Brush roller grinding→Degreasing II→Three washings→Chemical conversion coating→Drying→Primer coating / back coating→Baking→Cooling I→Top coating→Baking→Cooling II→Inspection→Collection roll.

[0041] Spray degreasing I adopts alkaline degreasing method, the main components are sodium hydroxide, sodium carbonate, trisodium phosphate, sodium silicate, etc. and surfactants, the temperature of the bath is controlled at 55±5°C; cm 2 ;The effective spraying time is 10 seconds;

[0042] Among the three washings, softened water is used for the first and second washings, and deionized water is used for the third washing to ensure the cleanliness of the substrate surface;

[0043] Brush roller grinding is to place the brush roller on the surface of the galvanized or galv...

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Abstract

The invention relates to a preparation method of scratch-resistant and wear-resistant color coat steel plate, using a galvanized or aluminized substrate as a base material. The steel plate is preparedby the following steps: firstly, spraying and degreasing; secondly, grinding with a brush roller; thirdly, coating a chemical conversion film and drying; fourthly, coating primer and back coat by roller painting, and baking; and fifthly, coating finish coat by roller painting, baking, and finishing. The preparation method is simple and effective, has less equipment investment and low cost, and isespecially suitable for continuous roller painting production. The prepared scratch-resistant and wear-resistant color coat steel plate has excellent scratch and wear resistance, good bending processability and longer service life than a common color coat steel in a use environment with repeated folding and mutual friction; and the coating is not cracked or peel off under various complicated processing conditions.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a method for preparing a scratch-resistant and wear-resistant colored coated steel plate. Background technique [0002] Color-coated steel sheet refers to a steel sheet with an organic coating on the substrate, generally referred to as color-coated sheet, and its commonly used substrates are cold-rolled substrates, hot-dip galvanized substrates and electro-galvanized substrates; commonly used coatings are polyester, Silicon modified polyester, polyvinylidene fluoride and plastisol, etc. Color-coated steel sheets have the advantages of good corrosion resistance, bright colors, beautiful appearance, convenient processing and forming, high strength, and low cost. They are widely used in construction, household appliances, transportation and other industries, especially in the construction industry. They are mainly used as steel structures. Roof walls and doors of industrial and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/16B05D3/00B05D3/12B05D3/10
Inventor 杨建仁
Owner SUZHOU YANGTZE NEW MATERIALS CO LTD
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