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S34700 stainless steel quenching classification

S34700 stainless steel quenching classification

Posted:2016-11-30 13:14:48

S34700 stainless steel quenching classification

 

S34700 stainless steel in low temperature salt bath or alkali bath quenching furnace, salt bath or alkali bath temperature near the Ms point, S34700 stainless steel in the temperature for min 2 ~ 5 min, then take out the air cooling, this call interrupted quenching cooling way.

Classification, the purpose of cooling is to make S34700 stainless steel inside and outside temperature is relatively uniform, at the same time to carry on the martensitic transformation, can greatly reduce the quenching stress, prevent deformation and cracking.

Sizing temperature were set at slightly higher than the Ms points, before S34700 stainless steel after uniform temperature inside and outside into the martensitic zone. Improvement for the temperature at the point slightly below Ms grading. Practice shows that under Ms point classification effect is better. For example, high carbon steel mould in 160 ℃ interrupted quenching in alkali bath, can not only quench, deformation and small, so the application is very extensive.

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