What is the Common Material of Cold Rolled Steel Sheet?

DX: The first letter D represents flat steel for cold forming. If the second letter is X, it means that the rolling status of the substrate is not specified. If the second letter is C, it means that the substrate is specified as a cold rolled substrate; If the bit letter is D, it means that the substrate is specified as a hot-rolled substrate.

SECC = Electric cold-rolled steel sheet knowledge: fingerprint resistance, excellent corrosion resistance, and maintain the workability of cold-rolled sheet. Applications: Home appliances, computer cases, and some door panels and panels.

SGCC = Hot-dip galvanized steel sheet: No steel plant in China has been able to produce high-quality materials, which are mainly imported from abroad, which is more expensive.

① Hot-dip galvanized sheet. The steel sheet is immersed in a molten zinc bath, and a layer of zinc steel sheet is adhered to the surface. At present, it is mainly produced by continuous galvanizing process, that is, the knowledge of making cold rolled steel sheet by continuously dipping the coiled steel sheet into the zinc plating bath with molten zinc;

② Knowledge of alloyed cold rolled steel sheet. This steel sheet is also manufactured by the hot-dip method, but immediately after it is out of the tank, it is heated to about 500 ° C to form an alloy coating of zinc and iron. This galvanized sheet has good paint adhesion and weldability;

③ Knowledge of electric cold rolled steel sheet. Knowledge of manufacturing such cold-rolled steel plates by electroplating has good workability. But the coating is thin and the corrosion resistance is not as good as Hot Dipped Galvanized Steel Sheet;

④ Knowledge of single-sided plating and double-sided differential cold-rolled steel sheet. Knowledge of single-sided cold-rolled steel sheet, that is, products that are galvanized on only one side. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of uncoated zinc on one side, there is another type of galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet; galvanized sheet factory, galvanized steel sheet, hot-dip galvanized sheet, hot-dip galvanized sheet Zinc sheet, cold rolled steel sheet, galvanized iron sheet, galvanized sheet price, tin sheet

⑤ Knowledge of alloy and composite cold-rolled steel plate. It is made of zinc and other metals such as lead, zinc, and even plated steel. This steel plate has both excellent rust prevention performance and good coating performance.

In addition to the above five types, they also have knowledge of colored Cold Rolled Steel Sheet, knowledge of cold-rolled steel sheets for printing and coating, and knowledge of cold-rolled steel sheets for laminated PVC. But currently the most commonly used is hot-dip galvanized sheet.

Cold Rolled Steel Sheet

1. Hydrogen reduction galvanizing Hydrogen reduction galvanizing was invented in 1937. Hydrogen reduction galvanizing lays the foundation for modern continuous galvanizing. The products produced by the hydrogen reduction method have better appearance quality and galvanized layer bonding force than the solvent method galvanization. After galvanizing, the strip enters the heating reduction furnace after being pickled, and the hydrogen oxide is used to reduce the oxide film produced by the pickling. During the heating and reducing process, a sponge-like reducing layer is generated on the surface of the steel sheet. After entering the zinc pot, It can produce a layer of zinc-iron alloy with good two-way bonding force and uniformity, which greatly increases the adhesion of the zinc layer, which also determines the high energy consumption cost of its galvanizing method.

2. Ammonium chloride solvent galvanizing was invented in 1837. For products using the ammonium chloride solvent production process, because the ammonium chloride solvent method galvanization does not have a heating reduction process, its appearance quality and galvanized layer surface binding force is slightly worse than that of hydrogen reduction galvanization. This also determines that the energy consumption cost of the galvanizing method is lower than that of the hydrogen reduction method.

The above are the common materials of cold rolled steel sheet introduced by Galvanized Steel Sheet Manufacturer.