Method of making a soft steel sheet by continuous annealing

Details Method of making a soft steel sheet by continuous annealing Method of making a soft steel sheet by continuous annealing

1975-11-17

1977-05-31

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

148 12C, 148 12F, C21D 714

Patent

active

040267296

ABSTRACT:
In a process of making a cold-reduced steel strip for press-forming by a continuous annealing process comprising a rapid cooling step after recrystallization heating and an over-aging treatment step, when no spray of cooling water at the runout table before coiling in the hot-rolling stage is carried out on the top side and the bottom side of a travelling hot-rolled steel strip by about 20 to 200m respectively, a cold reduced soft steel sheet for press-forming is easily obtained by the above continuous annealing process.

REFERENCES:
patent: 2377922 (1945-06-01), Campbell et al.
patent: 2666722 (1954-01-01), Epstein et al.
patent: 3513036 (1970-05-01), McFarland et al.
patent: 3560270 (1971-02-01), Reinbold et al.
patent: 3716420 (1973-02-01), Matsudo et al.
patent: 3806376 (1974-04-01), Toda et al.
patent: 3814636 (1974-06-01), Mould et al.
patent: 3879232 (1975-04-01), Gondo et al.

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