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What are the processing characteristics of stainless steel precision casting?

Edit:Xiangyang Liqiang Machinery Co., Ltd.UpDate:2020-03-30

Stainless steel precision castingIts physical properties are higher than that of pig iron, but the forging performance is worse than pig iron. It is called investment precision casting or precision casting. Stainless steel precision casting has a high melting point, easy to oxidize in the air, poor circulation of molten iron, and large gathering. Stainless steel precision casting is not only suitable for forging of various types and various aluminum alloys.

Process characteristics of stainless steel precision casting:

1. Because the compaction of stainless steel precision casting greatly exceeds that of pig iron, in order to avoid the shortcomings of shrinkage porosity and casting defects in castings, most of the countermeasures such as risers, cold iron and subsidies are used in the forging process to maintain sequential condensation.

2. Because of the poor circulation of desolventization, in order to avoid insufficient cold isolation and pouring caused by stainless steel castings, the thickness of stainless steel castings should not be less than 8 mm; use dry metal casting or hot metal casting. Increase the pouring temperature moderately, generally 1520°~1600°C. Due to the high pouring temperature, the molten iron has a high degree of overheating, and the liquid is maintained for a long time, the flowability can be improved.

The stainless steel precision casting production process is relatively precise, and we must carry out actual operations in strict accordance with the regulations.

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