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【Technical knowledge】What are the commonly used materials for sheet metal box processing?

With the development of science and technology, the sheet metal technology industry is becoming more and more mature, and the quality requirements for sheet metal chassis are also constantly improving. Therefore, while improving production efficiency, enterprises must also pay attention to the quality of materials used in sheet metal chassis shells. quality. So what are the main materials commonly used in the processing of sheet metal chassis shells? Next, the editor will give you a detailed introduction.

The specific content is as follows:

1. Ordinary cold-rolled sheet SPCC

SPCC refers to the continuous rolling of steel ingots into steel coils or steel plates of required thickness by cold rolling mills. The SPCC is ostensibly unprotected. When exposed to the air, it is easily oxidized, especially in a humid environment, the oxidation speed is accelerated, and dark red rust appears. During the shell processing, the surface of the precision metal plate chassis shell should be painted, electroplated or otherwise protected.

2. Stainless steel SUS304

Stainless steel is a widely used material for shell machining and has better corrosion and heat resistance than chromium-containing steel due to its nickel content. It has good mechanical properties, no heat treatment hardening, and no elasticity.

3. Hot-dip galvanized steel sheet SGCC

Hot dip galvanized steel coil (Hot dip placed steel coil) refers to the semi-finished product after hot rolling, pickling or cold rolling, after cleaning, annealing, immersed in a molten zinc bath at a temperature of about 460 ° C, and coating on the steel plate The zinc layer is then quenched, tempered, leveled and chemically treated. The SGCC material is harder than the Compeco material, has poor ductility (avoid deep drawing design), has a thicker zinc layer, and has poor weldability.

4. Stainless steel SUS301

The chromium content is lower than SUS304, and the corrosion resistance is poor. However, after cold working, good tension and hardness can be obtained during shell processing and stamping, and it has good elasticity. Mainly used for spring leaf springs and electromagnetic interference protection.

5. Galvanized steel plate

After degreasing, pickling, electroplating and various post-processing processes on the continuous electro-galvanizing production line, the precision sheet metal chassis shell becomes an electro-galvanized product. SECC not only has the mechanical properties and similar processing properties of ordinary cold-rolled steel sheets, but also has excellent corrosion resistance and decorative appearance. Sheet metal chassis processing is highly competitive and substitutable in the electronics, home appliances and furniture markets.