Color steel plate is a kind of steel plate whose base plate is cold-rolled, hot-dip galvanized and electro galvanized. It is widely used in building appliances, transportation and other industries. In order to better understand and use it, Jinan Color Steel Plate Factory will introduce the standard and production process of color steel plate base plate.
Base plate standard
1. Galvanized (aluminum) coil: galvanized steel plate is used to protect the surface of steel plate from corrosion and prolong its service life. A layer of metal zinc is coated on the surface of steel plate. This steel plate is called galvanized plate. It has the characteristics of excellent processing performance, good stamping resistance and corrosion resistance.
There are two types of galvanized coils. One is for civil galvanizing. The zinc layer is generally 60g/m2 thick, and the zinc flakes are generally large and medium, which are mainly used for processing corrugated boards; The other is zinc coating for color coated coil, which is called "base plate" of color steel coil in the industry. Generally, the zinc layer is 20-40g/m2 thinner than that of civil zinc coating. The zinc flakes are small zinc flakes and no zinc flakes. Aluminum and zinc plating can be used as both civil and color substrate
2. Color steel plate paint: the front primer is light yellow, which mainly reacts with the substrate to play a role in adhesion; The front surface paint has different colors, which has adhesion effect with the primer to increase the appearance; The back paint is actually a gray white primer. The paint is epoxy resin paint, which can be customized to Nippon, kcc, Burke and other brands.
3. Color coated steel plate: usually refers to the product made by roller coating or bonding organic film and baking after surface treatment of the substrate, which can be further processed into products. Color coated steel has excellent decoration, formability, corrosion resistance, strong adhesion of coating, and can keep the color novel for a long time.
4. Full hard color steel plate: refers to zinc plated (aluminum) coils or color steel plates with a hardness of more than 80. This type of steel coil is made of G550. Full hard steel coils have the characteristics of high hardness and good forming. Most of the production standards required for this type are for export, and most of the thickness is thin plate (less than 0.3mm). The price of full hard materials is higher than that of normal materials.
Production process sequence:
The main production processes of the two coating and two drying color coating unit are as follows: uncoiler ------ sewing machine ------ pressure roller ------ tension machine ------ uncoiling loop ------ alkali washing degreasing ------ cleaning ------ drying ------ purification ------ drying ------ initial coating ------ drying ------ finishing coat ------ finishing coat drying ------ air cooling cooling ------ winding loop ------ winding machine ------ down winding ------ weighing ------ packaging ------ warehousing.
The above is the content and information about the color steel plate substrate standard and production process summarized by Xiao Bian. I hope it can help you. If you have other questions, you can leave a message on our website or contact us directly http://www.jnhscg.com consulting service