Detailed processing of metal processing by precision casting

Precision casting is also crucial to metal processing. The processing of steel and other products must also pay attention to details. Only by mastering the processing details can we make better finished products, otherwise the quality of the finished products will decrease, so understand the processing details and pay attention to the details of steel product processing .

Due to the poor fluidity of molten steel, the wall thickness of cast steel is not less than 8mm, and the cross-sectional size of the pouring system is larger than that of cast iron; dry casting or hot casting; the pouring temperature is appropriately increased, generally 1520 degrees Celsius to 1600 degrees Celsius, the pouring temperature is high, the pouring temperature is high, the pouring temperature is high , the molten steel is overheated and the liquid is maintained for a long time, which can improve fluidity. However, if the pouring temperature is too high, it will cause defects such as coarse particles, thermal cracks, pores, and sand sticking.

Since the shrinkage of precision casting is much greater than that of cast iron, in order to prevent defects such as shrinkage holes, shrinkage and looseness in castings, measures such as risers, cold iron, and subsidies are mainly adopted to achieve continuous solidification.