There are many sheet metal materials suitable for stamping processing. Sheet metal materials commonly used in the electronic and electrical industry include:

1. Ordinary cold-rolled sheet SPCC SPCC refers to the continuous rolling of steel ingots into steel coils or sheets of required thickness through a cold rolling mill. There is no protection on the surface of SPCC, and it is very easy to be oxidized when exposed to the air, especially in a humid environment, the oxidation speed is accelerated, showing dark red rust, and the surface should be painted, electroplated or otherwise protected during use.

⒉ Galvanized steel sheet SECC The substrate of SECC is an ordinary cold-rolled steel coil, which becomes an electro-galvanized product after degreasing, pickling, electroplating and various post-treatment processes in a continuous electro-galvanizing production line. SECC not only has the mechanical properties and similar workability of ordinary cold-rolled steel sheets, but also has superior corrosion resistance and decorative appearance. It has great competition and substitution in the market of Electronic Products, home appliances and furniture. For example, the commonly used computer case is SECC.

⒊ Hot-dip galvanized steel sheet SGCC Hot-dip galvanized steel coil refers to the semi-waste products after hot-rolling pickling or cold-rolling, after cleaning and annealing, immersed in a molten zinc bath with a temperature of about 460 ° C, and the steel sheet is plated. The upper zinc layer is then quenched, leveled and chemically treated. SGCC material is harder than SECC material, has poor ductility (prevents deep drawing design), thicker zinc layer and poor weldability.

⒋ Stainless steel SUS301 The content of Cr (chromium) is lower than that of SUS304, and the corrosion resistance is poor, but it can obtain good tensile force and hardness after cold working, and has good elasticity. It is mostly used for shrapnel springs and anti-EMI. ⒌ Stainless steel SUS304 One of the most commonly used stainless steels, because it contains Ni (nickel), it is richer in corrosion resistance and heat resistance than steel containing Cr (chromium), has very good mechanical properties, no heat treatment hardening phenomenon, no elasticity.

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