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Sheet metal processing mainly relies on metal materials, and commonly used materials for sheet metal processing include:
The substrate of SECC is a general cold-rolled steel coil, which becomes an electroplated product after undergoing degreasing, pickling, electroplating, and various post-treatment processes on a continuous electroplated production line. SECC not only has the mechanical properties and similar processability of general cold-rolled steel sheets, but also has superior corrosion resistance and decorative appearance. It has great competitiveness and substitutability in the market of electronic products, home appliances, and furniture. For example, SECC is commonly used in computer cases.
SPCC refers to the continuous rolling of steel ingots into steel plate coils or sheets with the required thickness by a cold rolling mill. The surface of SPCC lacks any protection and is highly susceptible to oxidation when exposed to air, especially in humid environments where the oxidation rate accelerates and dark red rust appears. When using, the surface needs to be painted, electroplated, or other protective measures.
Hot dip galvanized steel coils refer to semi-finished products that have been hot-rolled, pickled or cold-rolled, cleaned, annealed, and immersed in a molten zinc bath at a temperature of about 460 ° C, to coat the steel sheet with a zinc layer, and then subjected to quenching, tempering, leveling, and chemical treatment. SGCC material is harder than SECC material, with poor ductility (avoiding deep drawing design), thicker zinc layer, and poor weldability.
One of the most widely used stainless steels, it has higher corrosion and heat resistance than steel containing Cr (chromium) due to its Ni (nickel) content. It has excellent mechanical properties, no heat treatment hardening phenomenon, and no elasticity.
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