发明授权
- 专利标题： Soft-magnetic, amorphous alloy ribbon and its production method, and magnetic core constituted thereby
- 专利标题（中）： 软磁性，非晶合金带及其制造方法，由此构成磁芯
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申请号： US13392427申请日： 2010-09-14
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公开(公告)号： US09290831B2公开(公告)日： 2016-03-22
- 发明人: Yoshihito Yoshizawa , Naoki Ito , Shinichi Kazui , Makoto Sasaki
- 申请人： Yoshihito Yoshizawa , Naoki Ito , Shinichi Kazui , Makoto Sasaki
- 申请人地址： JP Tokyo
- 专利权人： HITACHI METALS, LTD.
- 当前专利权人： HITACHI METALS, LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2009-212355 20090914
- 国际申请： PCT/JP2010/065866 WO 20100914
- 国际公布： WO2011/030907 WO 20110317
- 主分类号： C21D1/34
- IPC分类号： C21D1/34 ; H01F3/04 ; C22C38/02 ; C22C45/02 ; H01F1/153 ; H01F41/02
摘要：
A soft-magnetic, amorphous alloy ribbon produced by a rapid quenching method, having transverse lines of recesses formed on its surface by laser beams with predetermined longitudinal intervals, with a doughnut-shaped projection formed around each recess; doughnut-shaped projections having smooth surfaces substantially free from splashes of the alloy melted by the irradiation of laser beams, and a height t2 of 2 μm or less; and a ratio t1/T of the depth t1 of the recesses to the thickness T of the ribbon being in a range of 0.025-0.18, thereby having low iron loss and low apparent power.
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