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1.
公开(公告)号:US5185043A
公开(公告)日:1993-02-09
申请号:US609007
申请日:1990-10-31
申请人: Ujihiro Nishike , Shigeko Sujita , Tsuneo Nagamine
发明人: Ujihiro Nishike , Shigeko Sujita , Tsuneo Nagamine
CPC分类号: C21D8/1294 , B08B7/022 , H01F1/14775
摘要: A grain oriented silicon steel sheet having a low iron loss and not causing degradation of properties even through strain relief annealing is produced by applying ultrasonic vibrations to the surface of the sheet after secondary recrystallization annealing.
摘要翻译: 通过在二次再结晶退火后对片材的表面施加超声波振动,制造即使经由应变消除退火也具有低铁损且不引起特性劣化的晶粒取向硅钢板。
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公开(公告)号:US4768363A
公开(公告)日:1988-09-06
申请号:US887033
申请日:1986-07-02
申请人: Michio Yamashita , Hiroshi Yoshida , Toru Sasaki , Hideo Abe , Tsuneo Nagamine , Norio Takashima , Hideki Watanabe , Shuji Watanabe
发明人: Michio Yamashita , Hiroshi Yoshida , Toru Sasaki , Hideo Abe , Tsuneo Nagamine , Norio Takashima , Hideki Watanabe , Shuji Watanabe
CPC分类号: B21D1/02 , B21B37/44 , C21D1/00 , B21B2001/383
摘要: A method for preventing the camber of a two-layered clad metal sheet having a base layer and a covering layer of different metals which exhibit different amounts of thermal contraction. The method comprises developing a temperature difference .DELTA. T expressed by the following formula between the base layer and the covering layer during a hot levelling, by providing a greater cooling effect before or during levelling to the layer which exhibits the greater thermal contraction than to the layer which exhibits the smaller thermal contraction:.DELTA.T=f (.DELTA..alpha., .alpha., a, To)where,.DELTA..alpha.: the difference in thermal expansion coefficient between both metalsa: the clad ratio (ratio of covering layer thickness to total sheet thickness)To: hot leveller inlet temperature (.degree.C.).alpha.: mean thermal expansion coefficient of both metals.Since the layer which exhibits a greater thermal contraction is forcibly cooled before or during a hot levelling adequately and by a required amount, the clad metal sheet does not exhibit any substantial camber after cooled down to the room temperature.
摘要翻译: PCT No.PCT / JP85 / 00658 Sec。 371日期:1986年7月2日 102(e)日期1986年7月2日PCT提交1985年11月28日PCT公布。 公开号WO86 / 03435 日期:1986年6月19日。一种防止具有不同金属的基底层和覆盖层的两层复合金属片的弯度的方法,其具有不同的热收缩量。 该方法包括在热平整过程中在基底层和覆盖层之间通过下列公式表示的温差DELTA T,通过在与层之间呈现更大的热收缩的层的平整之前或期间提供更大的冷却效果 其表现出较小的热收缩:DELTA T = f(DELTAα,α,a,To)其中,ΔTAα:两种金属之间的热膨胀系数之差a:包层比(覆盖层厚度与总板厚的比率 )To:热矫平机入口温度(℃)α:两种金属的平均热膨胀系数。 由于表现出较大的热收缩的层在热调平之前或期间被充分地强度冷却并且所需的量,所以在冷却至室温后,复合金属板不会显示任何实质的弧度。
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