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    Annealing separator for grain oriented silicon steel strips
    2.
    发明授权
    Annealing separator for grain oriented silicon steel strips 失效
    晶粒取向硅钢带退火分离器

    公开(公告)号：US4287006A

    公开(公告)日：1981-09-01

    申请号：US98118

    申请日：1979-11-27

    申请人： Yoshitaka Hiromae ,  Kazuo Nakamura ,  Hajime Nitto

    发明人： Yoshitaka Hiromae ,  Kazuo Nakamura ,  Hajime Nitto

    IPC分类号： C01F5/08 ,  C03C8/00 ,  C21D1/68 ,  C21D1/70 ,  C21D8/12 ,  C04B35/04 ,  B23K35/24

    CPC分类号： C23D5/10 ,  C21D1/70

    摘要： An annealing separator useful for producing a grain oriented silicon steel strip having an excellent magnetic property, comprises non-hydrating magnesium oxide which has been calcined at a temperature of 1300.degree. C. or more, preferably, from 1300.degree. to 2100.degree. C., and which is in the form of fine particles, 70% by weight of which have a size of 5 microns or less, and optionally, magnesium hydroxide in an amount of 1 to 100% based on the weight of the magnesium oxide and/or an aluminium compound in an amount of 0.05 to 10% based on the weight of the magnesium oxide.

    摘要翻译： 用于制造具有优异磁性的晶粒取向硅钢带的退火分离剂包括在1300℃以上，优选1300〜2100℃的温度下煅烧的非水合氧化镁， 并且其为细颗粒的形式，其70重量％具有5微米或更小的尺寸，以及任选地，基于氧化镁的重量为1至100％的氢氧化镁和/或 铝化合物的量为0.05至10％，基于氧化镁的重量。

    Process for producing a non-oriented electromagnetic steel sheet having excellent magnetic properties
    4.
    发明授权
    Process for producing a non-oriented electromagnetic steel sheet having excellent magnetic properties 失效
    制造磁特性优异的无取向电磁钢板的制造方法

    公开(公告)号：US4560423A

    公开(公告)日：1985-12-24

    申请号：US486949

    申请日：1983-03-15

    申请人： Yoshiaki Shimoyama ,  Kunisuke Miyoshi ,  Yoshitaka Hiromae

    发明人： Yoshiaki Shimoyama ,  Kunisuke Miyoshi ,  Yoshitaka Hiromae

    IPC分类号： C22C38/00 ,  C21D8/12 ,  H01F1/16 ,  H01F1/04

    CPC分类号： H01F1/16 ,  C21D8/1272

    摘要： The present invention relates to a process for producing a non-oriented silicon steel sheet having a low watt loss and an improved magnetic flux density. Generally, increasing the content of silicon and aluminum in a steel reduces the watt loss of the final product but deteriorates the magnetic flux density. Also, increasing the finishing temperature of a steel sheet or to increase the size of the crystal grains of the final product reduces the watt loss of the final product but also decreases the magnetic flux density.In accordance with the present invention, a grade S7 or grade S8 non-oriented electromagnetic steel sheet exhibiting such excellent magnetic properties at a high magnetic field that the magnetic flux density B.sub.50 is 1.67 tesla or more, the watt loss W.sub.15/50 is 2.70 W/kg or less (0.50 mm thick), and the watt loss W.sub.15/50 is 2.20 W/kg or less (0.35 mm thick) is produced by subjecting a high aluminum electromagnetic steel containing not less than 2.5% silicon and not less than 1.0% aluminum to cold-rolling at a high reduction ratio before finishing-annealing and by subjecting the cold-rolled steel sheet or strip to finishing-annealing at a high temperature of 1050.degree. C. or more for a very short period of from 3 to less than 60 seconds.

    摘要翻译： PCT No.PCT / JP81 / 00202 Sec。 371日期1983年3月15日 102（e）1983年3月15日PCT申请1981年8月28日PCT公布。 公开号WO83 / 00506 日本1983年2月17日。本发明涉及一种具有低瓦特损耗和改善的磁通密度的无取向硅钢板的制造方法。 通常，增加钢中的硅和铝的含量降低了最终产品的瓦特损耗，但是磁通密度降低。 此外，提高钢板的最终温度或增加最终产品的晶粒的尺寸降低了最终产品的瓦特损耗，而且降低了磁通密度。 根据本发明，在磁通密度B50为1.67特斯拉以上的高磁场下显示出优异的磁特性的S7级或S8级无电磁钢板，瓦特损耗W15 / 50为2.70W / kg以下（0.50mm厚），瓦数W15 / 50为2.20W / kg以下（0.35mm厚），通过对含有2.5％以上的硅且不小于1.0的高铝电磁钢进行制造 ％的铝以高精度退火前的高还原率进行冷轧，并且在1050℃以上的高温下将冷轧钢板或钢带进行最终退火3〜 少于60秒。