How to clean die casting parts?

After die casting process from the die casting machine, the first thing to do is cleaning, which determines the quality of the die casting parts. 

Normally, the cleaning process involves removing the pouring system, the lining of the overflow system, the edges and the flash, and sometimes the metal and the marks that are left behind after the cleaning work is done.

The mainly used equipments to remove the pouring system and the flying sides are the punching machine, hydraulic press and friction press. Under mass production, according to the structure and shape of die castings a special mould can be designed and manufactured to do the cleaning job in the punching machine. 

For the burrs and flying edges on small holes and screw thread, it can be mounted on a special fixture, which uses a semi-automatic or automatic multi-station rotating disk machine to accomplish the cleaning of flash burr and cutting operation of the pouring system at various stations. The surface cleaning is usually carried out by ordinary multi-angle roller and vibration embedded cleaning device. For small batch of simple small diecast pieces, multi-angle roller can be used. 

Decorative surfaces that require a high degree of surface can be polished by cloth or with a leather polishing wheel. Shell - type vibration cleaning machine can be used for mass production of castings. After cleaning, the die casting parts shall be surface treated and impregnated according to the requirements of application, so as to increase luster, prevent corrosion and improve air tightness. For residual metal or trace after finishing, rubber grinding wheel or abrasive belt can be used. Simple small diecast parts can also be cleaned with a roller.

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