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1.再颁专利
公开(公告)号：USRE30851E
公开(公告)日：1982-01-19
申请号：US125749
申请日：1980-02-28
申请人： Kenzo Toda , Hisashi Gondo , Bunichiro Kawasaki , Mitsunobu Abe , Ryoseki Katsutani , Tsuyoshi Kawano , Norimasa Uehara , Yoshio Saito , Kenichiro Suemune , Masahiko Shiraishi , Yoshifumi Tadashige , Masao Morimoto , Takao Tsukamura , Kurayoshi Watanabe , Teruhiko Nishimura
发明人： Kenzo Toda , Hisashi Gondo , Bunichiro Kawasaki , Mitsunobu Abe , Ryoseki Katsutani , Tsuyoshi Kawano , Norimasa Uehara , Yoshio Saito , Kenichiro Suemune , Masahiko Shiraishi , Yoshifumi Tadashige , Masao Morimoto , Takao Tsukamura , Kurayoshi Watanabe , Teruhiko Nishimura
CPC分类号： C21D8/0426 , B21B31/10 , C21D8/0452 , C21D8/0473 , C21D9/52 , C21D9/56 , B21B2001/228 , B21B2015/0071 , B21B39/08 , C21D8/0436 , C21D8/0442 , C21D9/563 , C21D9/573
摘要： In the production of low-carbon steel, particularly low-carbon steel sheet containing less than 0.25% of Mn, improvements in the method and apparatus, which comprises hot rolling a steel having a controlled range content of Mn, O and S contents, then coiling thus hot rolled steel at temperatures between 600.degree.-800.degree. C., further cold rolling the hot rolled plate down to a prescribed thickness, annealing and overaging the steel in a continuous furnace, rapidly cooling the steel near room temperatures and skin pass rolling, leveling, and recoiling the sheet. Thus produced steel sheet is very useful for applications such as pressed automobile body parts which require good workability particularly good drawability.
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2.再颁专利Apparatus for continuous treatment of low-carbon cold-rolled steel sheet having excellent cold working properties 失效用于连续处理具有优异的冷加工性能的低碳冷轧钢板的设备
公开(公告)号：USRE30933E
公开(公告)日：1982-05-18
申请号：US125750
申请日：1980-02-28
申请人： Kenzo Toda , Hisashi Gondo , Bunichiro Kawasaki , Mitsunobu Abe , Ryoseki Katsutani , Tsuyoshi Kawano , Norimasa Uehara , Yoshio Saito , Kenichiro Suemune , Masahiko Shiraishi , Yoshifumi Tadashige , Masao Morimoto , Takao Tsukamura , Kurayoshi Watanabe , Teruhiko Nishimura
发明人： Kenzo Toda , Hisashi Gondo , Bunichiro Kawasaki , Mitsunobu Abe , Ryoseki Katsutani , Tsuyoshi Kawano , Norimasa Uehara , Yoshio Saito , Kenichiro Suemune , Masahiko Shiraishi , Yoshifumi Tadashige , Masao Morimoto , Takao Tsukamura , Kurayoshi Watanabe , Teruhiko Nishimura
CPC分类号： C21D8/0426 , B21B31/10 , C21D8/0452 , C21D8/0473 , C21D9/52 , C21D9/56 , B21B2001/228 , B21B2015/0071 , B21B39/08 , C21D8/0436 , C21D8/0442 , C21D9/563 , C21D9/573
摘要： An apparatus for continuous treatment of cold rolled steel sheet. The apparatus has a continuous annealing furnace through which the sheet is continuously passed and which is composed of, in succession, a heating chamber for heating the cold rolled steel sheet to a temperature range of 700.degree. to 900.degree. C. within 2 minutes, a soaking chamber for keeping the sheet in the above temperature range for two minutes or less, a primary cooling chamber for rapidly cooling the sheet from the above temperature range to an overageing at a rate of 5.degree. to 30.degree. C./sec., an overageing chamber for keeping the sheet between 300.degree. to 400.degree. C. for up to eight minutes, and a secondary cooling chamber for cooling the sheet from the above overageing temperature to below 50.degree. C. within 2 minutes. Adjacent the output end of said furnace is apparatus for successively skin pass rolling, levelling and recoiling the sheet from the annealing furnace. The skin pass rolling apparatus has apparatus for replacing the working rolls.
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