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1.发明公开
公开(公告)号：EP0226446A2
公开(公告)日：1987-06-24
申请号：EP86309598.0
申请日：1986-12-10
发明人： Matsuoka, Saiji , Satoh, Susumu , Obara, Takashi , Tsunoyama, Kozo , Abe, Hideo
CPC分类号： B21B1/46 , B21B1/28 , B21B1/34 , B21B1/40 , B21B9/00 , B21B2201/04 , B21B2261/20 , B21B2275/06 , C21D8/0226 , C21D8/0231 , C21D8/0263 , Y10T29/49991
摘要： Thin steel sheets having an improved processability are produced when a steel sheet or cast strip obtained through a continuous casting or strip caster process is subjected to a lubrication rolling step at a temperature of from Ar₃ transformation point to 300°C and a rolling speed of not less than l,500 m/min. By this method, the cold rolling step or cold rolling-annealing step can be omitted.
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2.发明授权Cold rolled steel sheets having improved spot weldability and method for producing the same 失效具有改进的冷轧钢板点焊性和它们的制备方法。
公开(公告)号：EP0295697B1
公开(公告)日：1994-09-07
申请号：EP88109682.0
申请日：1988-06-16
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3.发明公开Cold rolled steel sheets having improved spot weldability and method for producing the same 失效具有改进的点火焊接性的冷轧钢板及其制造方法
公开(公告)号：EP0295697A3
公开(公告)日：1989-11-23
申请号：EP88109682.0
申请日：1988-06-16
发明人： Okada, Susumu , Imananka, Makoto , Masui, Sasumu , Obara, Takashi , Shinozaki, Masatoshi , Tsunoyama, Kozo
摘要： An extra-low carbon cold rolled steel sheet useful for use in automobiles and the like having an improved spot weldability is obtained by combinedly adding Ti, Nb and B in predetermined amounts to the extra-low carbon steel so as to control the amount of fine Ti precipitate dispersed in steel to the specified reasonable range. Furthermore, the spot weldability is improved by controlling the production conditions of the extra-low carbon steel sheet to specified reasonable ranges.
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4.发明公开Cold rolled steel sheets having improved spot weldability and method for producing the same 失效Kaltgewalzte Stahlbleche mit verbesserterPunktschweissfähigkeitund Verfahren zu ihrer Herstellung。
公开(公告)号：EP0295697A2
公开(公告)日：1988-12-21
申请号：EP88109682.0
申请日：1988-06-16
发明人： Okada, Susumu , Imananka, Makoto , Masui, Sasumu , Obara, Takashi , Shinozaki, Masatoshi , Tsunoyama, Kozo
摘要： An extra-low carbon cold rolled steel sheet useful for use in automobiles and the like having an improved spot weldability is obtained by combinedly adding Ti, Nb and B in predetermined amounts to the extra-low carbon steel so as to control the amount of fine Ti precipitate dispersed in steel to the specified reasonable range. Furthermore, the spot weldability is improved by controlling the production conditions of the extra-low carbon steel sheet to specified reasonable ranges.
摘要翻译： 通过将Ti，Nb和B以预定量合并到超低碳钢中来获得可用于汽车等的具有改进的点焊性的超低碳冷轧钢板，以便控制精细量 Ti沉淀分散在钢中达到规定的合理范围。 此外，通过将超低碳钢板的生产条件控制在规定的合理范围内，可以提高点焊性。
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5.发明公开
公开(公告)号：EP0226446A3
公开(公告)日：1987-09-09
申请号：EP86309598
申请日：1986-12-10
发明人： Matsuoka, Saiji , Satoh, Susumu , Obara, Takashi , Tsunoyama, Kozo , Abe, Hideo
CPC分类号： B21B1/46 , B21B1/28 , B21B1/34 , B21B1/40 , B21B9/00 , B21B2201/04 , B21B2261/20 , B21B2275/06 , C21D8/0226 , C21D8/0231 , C21D8/0263 , Y10T29/49991
摘要： Thin steel sheets having an improved processability are produced when a steel sheet or cast strip obtained through a continuous casting or strip caster process is subjected to a lubrication rolling step at a temperature of from Ar₃ transformation point to 300°C and a rolling speed of not less than l,500 m/min. By this method, the cold rolling step or cold rolling-annealing step can be omitted.
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