There are many sheet metal materials suitable for stamping processing. Sheet metal materials widely used in the electronic and electrical industry include:
Folding ⒈ ordinary cold rolled plate SPCC
SPCC refers to steel ingots being continuously rolled by a cold rolling mill into steel plate coils or sheets of required thickness. There is no protection on the surface of SPCC, and it is easily oxidized when exposed to the air. Especially in humid environments, the oxidation rate accelerates and dark red rust appears. The surface must be painted, electroplated or otherwise protected during use.
Folded ⒉ galvanized steel sheet SECC
The substrate of SECC is a general cold-rolled steel coil, which undergoes degreasing, pickling, electroplating and various post-processing in the continuous electro-galvanizing production line After the manufacturing process, it becomes an electro-galvanized product. 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 is highly competitive and substitutable in the markets of electronic products, home appliances and furniture. For example, SECC is commonly used in computer cases.
Folding ⒊Hot-dip galvanized steel plate SGCC
Hot-dip galvanized steel coil refers to a semi-finished product that is hot-rolled, pickled or cold-rolled. After cleaning and annealing, the immersion temperature is about The steel sheets are coated with zinc in a molten zinc bath at 460°C, and then tempered, leveled and chemically treated. SGCC material is harder than SECC material, has poorer ductility (avoid deep drawing design), thicker zinc layer, and poorer weldability.
Folding ⒋ stainless steel SUS301
The content of Cr (chromium) is lower than that of SUS304, and the corrosion resistance is poor. However, it can obtain good tensile strength and hardness after cold working, and has good elasticity. Mostly used for shrapnel springs and EMI prevention.
Folding ⒌ stainless steel SUS304
One of the most widely used stainless steels. Because it contains Ni (nickel), it is more corrosion-resistant and heat-resistant than steel containing Cr (chromium). , has very good mechanical properties, no heat treatment hardening phenomenon, and no elasticity.