Sheet metal shell - sheet metal fabrication materials

Sheet metal shell fabrication material method, sheet metal fabrication has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, large-scale mass production performance, etc.

1. Ordinary cold-rolled sheet SPCC SPCC means that a steel ingot is continuously rolled into a coil or sheet of a required thickness by a cold rolling mill. The SPCC Surface does not have any protection. It is easily oxidized when exposed to air, especially in humid environments. It has a dark red rust and should be painted, plated or otherwise protected during use.

2. The substrate of SECZ SECC SECC is a general cold-rolled steel coil. After continuous degreasing, pickling, electroplating and various post-treatment processes, the continuous electro-galvanizing line becomes an electro-galvanized product. SECC not only has the mechanical properties and approximate processability of general cold-rolled steel sheets, but also has superior corrosion resistance and decorative appearance. It has great competitiveness and substitution in the market of electronic products, home appliances and furniture. For example, the SECC is commonly used in computer cases.

3. Hot-dip galvanized steel sheet SGCC Hot-dip galvanized steel coil refers to the semi-finished product after pickling or cold rolling, which is washed, annealed, immersed in a molten zinc bath at a temperature of about 460 ° C, and the steel sheet is plated. The zinc layer is then tempered and leveled and chemically treated. SGCC materials are harder and less ductile than SECC materials (avoid deep draw design), thicker zinc layers, and poor weldability.

4. The content of stainless steel SUS301 Cr (chromium) is lower than that of SUS304, and the corrosion resistance is poor. However, after cold working, it can obtain good tensile force and hardness, and has good elasticity. It is mostly used for springs and EMI.

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