Method for producing a thin casting of Cr-series stainless steel

Details Method for producing a thin casting of Cr-series stainless steel Method for producing a thin casting of Cr-series stainless steel

1986-11-24

1987-12-01

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164476, 164477, 148 2, 148 3, 295274, 295277, C21D 802, B22D 1100

Patent

active

047097426

ABSTRACT:
The Cr-series stainless steel sheet heretofore produced by a method including annealing a hot-rolled strip for decomposing the .alpha.'-phase or .gamma.-transformed phase therein, can be produced by omitting this annealing. In the method according to the present invention, a thin casting is cooled from the solidification temperature to the end temperature of the .gamma.-phase-precipitation at a cooling speed at least equal to the air cooling-speed, thereby avoiding the .gamma.-phase-precipitation. Then, the precipitation treatment for precipitating the supersaturated C, N, and S, or the heating to the .alpha.+.gamma. dual phase-temperature region for precipitating the .gamma.-phase, is carried out.

REFERENCES:
patent: 4382828 (1983-05-01), Henych

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