Color-coating steel plate and coating process
A color-coated steel plate and coating process technology, applied in the field of coil coating and steel coil material production, can solve the problems of high surface resistance and difficult release of electrostatic charge, and achieve high corrosion resistance, simple manufacturing process, excellent resistance to electrostatic effect
Active Publication Date: 2013-07-17
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
However, the surface of ordinary color-coated steel products generally used in indoor buildings is composed of polymer materials, so it has a high surface resistance, which makes it difficult to release the static charge generated on the surface of ordinary color-coated steel sheets for a while, thus accumulating more and more More and more electrostatic charges, sometimes the electrostatic voltage of these materials can even be as high as several thousand volts
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1-5
[0036] In Examples 1-5, common hot-dip galvanized aluminum-killed steel with a brand name of TDC51D, a thickness of 0.5 mm, and a width of 1200 mm was selected as the metal base plate. The composition of the antistatic polyester coating in each embodiment is shown in Table 1.
[0037] Table 1
[0038] Element
[0039] In Examples 1-5, each metal bottom plate is painted according to the following steps, and the specific process parameters are shown in Table 2:
[0040] (1) Apply polyurethane primer on the metal base plate by roller coating, the roller speed of the coating roller is 130-150m / min, and the roller speed of the belt material roller is 20-50m / min;
[0041] (2) Initial coating curing: Bake the metal plate coated with the primer in a curing furnace at a temperature of 232-241°C and a baking time of 20-40s. ;
[0042] (3) Cooling: water-cooling the metal plate that has been cured by initial coating;
[0043] (4) Fine coating of paint: Stir the antistatic ...
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The invention discloses a color-coating steel plate which comprises a metal substrate, priming paint coated on the metal substrate, and top finish coated on the priming paint; the top finish is antistatic polyester paint which comprises the following compound ingredients by mass: 30-70 parts of high molecular weight polyester resin, 3-15 parts of methyl-etherified amino resin, 10-20 parts of conductive titanium dioxide, 16-37 parts of pigments, 0.1-1 parts of acrylic acid leveling agents, 0.1-1 parts of silica, 0.1-1 parts of polytetrafluoroethylene wax. Correspondingly, the invention also provides a coating process of the color-coating steel plate, which comprises several process steps such as paint primary coating, primary coating curing, primary coating cooling, paint fine coating, fine coating curing, fine coating cooling, and the like, and the color-coating steel plate produced by the process has a beautiful appearance, and an excellent antistatic property.
Description
technical field [0001] The invention relates to the production field of steel coil coatings and coil steel materials, in particular to a color-coated steel plate and a coating process thereof. Background technique [0002] The so-called color-coated steel plate is also called organic coated steel plate or pre-coated steel plate. It is widely used in construction and home appliance industries due to its high quality and aesthetics. [0003] Static electricity can be seen everywhere in daily life. The accumulation of static charge will cause a large number of microorganisms and bacteria on the surface of the object, reduce the apparent performance and use value of the product, and cause combustion and explosion in severe cases. However, the surface of ordinary color-coated steel products generally used in indoor buildings is composed of polymer materials, so it has a high surface resistance, which makes it difficult to release the static charge generated on the surface of ord...
Claims
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IPC IPC(8): B32B15/04B32B33/00C09D167/00C09D5/24B05D1/38B05D3/02B05D3/00
Inventor 马雪丹顾进荣田新芳李招余
Owner BAOSHAN IRON & STEEL CO LTD