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Cleansing color coated steel plate for purification and preparation method thereof

A color-coated steel plate and surface cleaning technology, applied in the field of materials, to achieve the effect of fine and smooth appearance, not easy to scratch and damage, and high scratch resistance

Inactive Publication Date: 2011-12-14
SUZHOU YANGTZE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to make the color-coated steel plate meet the requirements of complex bending processing performance, and at the same time have the characteristics of easy cleaning and scrub resistance of the paint film, and have a fine and smooth coating surface, which is non-toxic and environmentally friendly under certain conditions. characteristic

Method used

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  • Cleansing color coated steel plate for purification and preparation method thereof
  • Cleansing color coated steel plate for purification and preparation method thereof
  • Cleansing color coated steel plate for purification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Using smooth galvanized substrate as the base material, the continuous automatic production process of cleansing color-coated steel sheets for purification and cleaning is briefly described as follows: uncoiling → degreasing I → brush roller grinding → degreasing II → three washings → chemical conversion film → drying →Primer coating / back coating→baking→cooling I→top coating→baking→cooling II→inspection→winding.

[0051] 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 ; Effective spraying time is 10 seconds; Degreasing II is to wash the board with the above lye;

[0052] 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;

[0053] Brush roller grinding is ...

Embodiment 2

[0065] Pollutants include water and carbon black. Under the condition that the preparation ratio is water: carbon black (FW 200) = 85:15, it is made of cleansing color coated steel plate (white ash) and ordinary color steel plate (white ash) for purification respectively. There are three test panels each, and after the pollutants are evenly painted on the surface of the test panels, they are baked in an oven at a temperature of 60°C for 2 hours. After taking them out, they are rinsed with clean running water, and then wiped with absorbent cotton until the carbon black on the coating surface cannot be wiped off. until. Based on the sample plate before the test, the color change was tested with a color difference meter. The stain resistance comparison between the cleansing color coated steel plate of this embodiment and the ordinary color steel plate is shown in Table 3:

[0066]

[0067] table 3

[0068] Note: In Table 3, ΔL, Δa, and Δb refer to the difference in hue change...

Embodiment 3

[0072] Under the condition that the temperature is 23°C, the load of the nylon brush is 454g, and the frequency of back-and-forth brushing is 37 times / min, the comparison of the wiping resistance of the cleansing color-coated steel plate of this embodiment with that of ordinary color-coated steel plates is shown in Table 4:

[0073]

[0074] Table 4

[0075] The results shown in Table 4 are:

[0076] Cleansing color-coated steel plate for purification can withstand an average of 1525 times of wiping

[0077] The average number of wipes of ordinary color steel plate is 1133 times

[0078] Result = number of times of wiping resistance of color-coated steel plate for purification / number of times of wiping resistance of ordinary color steel plate = 135%

[0079] After comparing the results of three groups of tests, the average value is greater than 100%, which shows that the abrasion resistance of the cleansing color-coated steel plate for purification is obviously better t...

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Abstract

The present invention relates to the technical field of materials, in particular to a cleansing color-coated steel sheet for purification and a preparation method thereof. The cleansing color-coated steel sheet for purification comprises: a smooth galvanized substrate (101); The chemical conversion layer (103), the primer layer (104), and the top paint layer (106) are sequentially upward from the surface, and the chemical conversion layer (103) and the back paint layer are sequentially downward from the lower surface of the substrate (101) (105). The present invention greatly improves the adhesion of the coating by improving the structure and process of the color-coated steel plate, and obtains a clean color-coated plate with a delicate and smooth outer coating surface. Compared with the existing color-coated steel plate, its The advantages are: good surface characteristics, bending processing performance, easy cleaning and resistance to repeated scrubbing, non-toxic and environmentally friendly, and the preparation method of the present invention is simple and effective, with less equipment investment and low cost, and is very suitable for large industrial production.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a cleansing color-coated steel plate for purification and a preparation method thereof. Background technique [0002] Color-coated steel plate refers to the steel plate with an organic coating on the substrate, generally referred to as color steel plate, the 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 commer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04B32B15/18B32B9/04B32B27/06B32B27/38
Inventor 杨建仁
Owner SUZHOU YANGTZE NEW MATERIALS CO LTD
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