Method of cooling cold steel strip with cooling rolls
Номер патента: CA1196841A
Опубликовано: 19-11-1985
Автор(ы): Kaneaki Hyodo, Kazuo Morimoto, Osamu Hashimoto, Shinjiro Murakami
Принадлежит: Kawasaki Steel Corp, Mitsubishi Heavy Industries Ltd
Опубликовано: 19-11-1985
Автор(ы): Kaneaki Hyodo, Kazuo Morimoto, Osamu Hashimoto, Shinjiro Murakami
Принадлежит: Kawasaki Steel Corp, Mitsubishi Heavy Industries Ltd
Реферат: Abstract of the Disclosure A method of cooling band or hoop steels with hollow cooling rolls through which a cooling medium flows to absorb the heat of the steel strips trained about and in contact with the hollow cooling rolls, thereby cooling the steel strips. According to the invention this method is carried out so as to [ulfil the following equation (1) with the cooling roll having a diameter D>600 mm when a thickness h of the steel strip is within 0.2<h<0.6 mm, .DELTA.TS < 0.65 .sigma.T1.5 .theta. h-0.75 (1) and so as to fulfil the following equation (2) with the cooling roll having a diameter D>l,000 mm when a thickness h of the steel strip is within 0.6mm<h, .DELTA.TS < 1.05 ? .sigma.T1.5 ? .theta. ? h-0.83 (2) where .DELTA.TS is temperature fall °C per one cooling roll, .sigma.T is tensile stress in a lengthwise direction of the steel strip and .theta. is winding angle about the cooling roll.
Method of controlling the temperature of steel strip in the cooling zone of a continuous annealing furnace
Номер патента: CA1239570A. Автор: Yasunobu Hayama,Takeo Fukushima,Norihisa Shiraishi,Sachihiro Iida,Kuniaki Tanouchi. Владелец: Kawasaki Steel Corp. Дата публикации: 1988-07-26.