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What are the common heat treatment methods of precision casting?

Issuing time:2021-06-17 16:08

In the process of precision casting, it is very important to do a good job of heat treatment, so what should be paid attention to in the heat treatment of precision casting?

1. Surface hardening treatment: in order to obtain the surface hardening layer, at the same time to get a very high surface wear resistance.

2 softening annealing: the purpose is mainly to decompose the carbide, reduce its hardness, and improve the processing performance, for ductile iron, the purpose is to get more ferrite structure.

3. Quenching treatment: in order to obtain higher hardness or wear strength, at the same time to a very high surface wear resistance.

4. Precipitation hardening treatment: in order to obtain high strength and the elongation does not change dramatically.

5. Normalizing treatment: the purpose is to obtain pearlite and sorbite structure to improve the mechanical properties of stainless steel casting.

Therefore, in the production process of precision casting, it is very important to do a good job of heat treatment to ensure its good performance.



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