Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1989-11-20
1991-08-27
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164477, 148 2, B22D 1100
Patent
active
050425641
ABSTRACT:
In the manufacture of formable steel in the form of a strip with a final thickness of between 0.5 and 1.5 mm, in a number of continuous successive process stages, molten steel is continuously cast into a slab of less than 100 mm thickness and the slab is rolled into the strip. To simplify the apparatus required, and improve process control, the slab is cooled down to a rolling temperature of between 300.degree. C. and a temperature T.sub.t at which at least 75% of the material is converted into ferrite, and the rolling of the slab into strip comprises at least one reduction stage with a thickness reduction of over 30%. The rolling exit speed is less than 1000 m/min. After recrystallization, the strip is coiled.
REFERENCES:
patent: 3969162 (1976-07-01), Henke
patent: 4885041 (1989-12-01), den Hartog et al.
Patent Abstracts of Japan, vol. 9, No. 211 (C-300) (1934) 8/29/85, K. Oosawa, "Production of Cold-Rolled Steel Plate for Drawing".
Patent Abstracts of Japan, vol. 10, No. 276 (C-373) (2332) 9/19/86, H. Suzuki, "Manufacture of Cold Rolled Steel Sheet for Press Working . . . ".
Patent Abstracts of Japan, vol. 10, No. 98 (C-339) (2155) 4/15/86, H. Katou, "Manufacture of Nonaging Cold Rolled Steel Plate by . . . ".
den Hartog Huibert W.
Gadellaa Robert F.
Van Perlstein Erik B.
Hoogovens Groep B.V.
Lin Kuang Y.
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