Metallurgical apparatus – Having means for contacting a solid metalliferous material... – With means changing the shape of a treated object – e.g.,...
Patent
1979-12-27
1982-05-18
Dean, R.
Metallurgical apparatus
Having means for contacting a solid metalliferous material...
With means changing the shape of a treated object, e.g.,...
266110, 266112, 266113, C21D 164
Patent
active
043301126
ABSTRACT:
Method and apparatus for cooling a steel strip in a continuous annealing line, which has a first cooling step in which the steel strip immediately after an overageing treatment is cooled from the overageing temperature to a temperature in the range of from about 95.degree. C. to 60.degree. C., a temperature which prevents a surface oxidation but allows self-drying of the strip, in a protective atmosphere using a liquid coolant; and a second cooling step in which the steel strip is cooled to a temperature suitable for a subsequent temper rolling using liquid coolant at a temperature no higher than 40.degree. C.
REFERENCES:
patent: 4052235 (1977-10-01), Nakaoka et al.
Nagira Norichika
Toshimitsu Tohoru
Ueda Kenji
Dean R.
Nippon Steel Corporation
Nittetsu Plant Designing Corporation
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