automobile chassis production and processing is the core technology that sheet metal technicians must master, and it is also the main whole process of sheet metal equipment. It not only includes the traditional laser cutting and blanking, stamping, bending and forming methods and process main parameters, but also includes the structural characteristics and process main parameters of various cold stamping dies, the basic principles and operation steps of various facilities, and its new stamping technology and new process. SECC not only has the physical properties and processability of general cold-rolled plates, but also has excellent corrosion resistance and ornamental decoration appearance. In the electronic equipment, electrical products and home market, it has a high competitiveness and substitutability. For example, SECC is commonly found in electronic computer mainframe cases.

definition of hot dip: SGCC hot dip galvanized iron coil with hot dip or phosphating layer on the surface refers to the processing of semi-finished products after hot pickling passivation or hot rolling, cleaning and annealing. (Annealing), immersion at a temperature of approximately 460°C. In a molten zinc bath at 460°C, the sheet metal is stamped with a hot-dip galvanized layer on the steel, followed by quenching, leveling and chemical solution (CH3l1). SGCC raw material (material) is harder than SECC raw material, with poor plasticity (to prevent deep drawing design), thick zinc layer and poor malleability.