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31 条记录 (耗时 0.025 秒)

    Method for manufacturing grain-oriented silicon steel sheets with mirror-like surface
    4.
    发明授权
    Method for manufacturing grain-oriented silicon steel sheets with mirror-like surface 有权
    制造具有镜面表面的晶粒取向硅钢板的方法

    公开(公告)号：US07364629B2

    公开(公告)日：2008-04-29

    申请号：US10500994

    申请日：2003-01-07

    申请人： Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Hiroyasu Fujii ,  Kenichi Murakami

    发明人： Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Hiroyasu Fujii ,  Kenichi Murakami

    IPC分类号： H01F1/147 ,  H01F1/18

    CPC分类号： C21D8/1272 ,  C21D1/76 ,  C21D8/1255 ,  C21D8/1283

    摘要： In a method for manufacturing grain-oriented silicon steel with mirror-like surface by applying an aqueous slurry of an annealing separator, magnetic properties are stabilized by controlling the amount of moisture, carried in the annealing separator consisting mainly of alumina after application and drying thereof, to not more than 1.5%, controlling the partial water vapor pressure during finish-annealing and eliminating the variation (instability) in secondary recrystallization caused by the inhibitor reaction at the interface.

    摘要翻译： 在通过应用退火分离剂的水性浆料制造具有镜面状的晶粒取向硅钢的方法中，通过控制施加和干燥之后主要由氧化铝组成的退火隔离物中所含的水分的量而使磁性能稳定 ，不超过1.5％，控制最终退火时的部分水蒸汽压力，消除由界面处的抑制剂反应引起的二次再结晶的变化（不稳定性）。

    Method for producing grain-oriented silicon steel sheet not having inorganic mineral film
    5.
    发明授权
    Method for producing grain-oriented silicon steel sheet not having inorganic mineral film 有权
    不具有无机矿物膜的晶粒取向硅钢板的制造方法

    公开(公告)号：US06733599B2

    公开(公告)日：2004-05-11

    申请号：US10312115

    申请日：2002-12-20

    申请人： Hiroyasu Fujii ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Kenichi Murakami ,  Norihiro Yamamoto ,  Kiyoshi Sawano ,  Shuichi Yamazaki

    发明人： Hiroyasu Fujii ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Kenichi Murakami ,  Norihiro Yamamoto ,  Kiyoshi Sawano ,  Shuichi Yamazaki

    IPC分类号： H01F114

    CPC分类号： C21D8/1283 ,  C21D1/70 ,  C21D3/04 ,  C21D8/1255 ,  C21D8/1272

    摘要： The present invention provides a method for producing a grain-oriented silicon steel sheet not having inorganic mineral films by using an annealing separator capable of preventing the inorganic mineral films composed of forsterite (Mg2SiO4), and so on, from forming during final annealing, comprising the steps of decarburization annealing followed by coating of annealing separator and final annealing, wherein alumina powder calcined at a calcination temperature of 900 to 1,400° C., or further having a BET specific surface area of 1 to 100 m2/g, an oil absorption of 1 to 70 ml/100 g, and/or having a gamma ratio of 0.001 to 2.0, is used as the annealing separator. Magnesia having a BET specific surface area of 0.5 to 5 m2/g may be added to said alumina powder.

    摘要翻译： 本发明提供一种通过使用能够防止由最终退火形成的镁橄榄石（Mg 2 SiO 4）等的无机矿物膜的退火隔板而制造不具有无机矿物膜的晶粒取向硅钢板的方法，包括 脱碳退火的步骤，然后进行退火分离剂的涂布和最终退火，其中在煅烧温度为900〜1400℃或BET比表面积为1〜100m 2 / g的条件下煅烧的氧化铝粉末， 使用1〜70ml / 100g的吸油量和/或具有0.001〜2.0的γ比值的退火分离剂。 可以向所述氧化铝粉末添加BET比表面积为0.5-5m 2 / g的氧化镁。

    Method for producing a grain-oriented electrical steel sheet having a mirror surface and improved core loss
    6.
    发明授权
    Method for producing a grain-oriented electrical steel sheet having a mirror surface and improved core loss 失效
    具有镜面和改善铁心损耗的方向性电磁钢板的制造方法

    公开(公告)号：US5509976A

    公开(公告)日：1996-04-23

    申请号：US503112

    申请日：1995-07-17

    申请人： Shuichi Yamazaki ,  Yoshiyuki Ushigami ,  Hiroyasu Fujii ,  Kenichi Murakami

    发明人： Shuichi Yamazaki ,  Yoshiyuki Ushigami ,  Hiroyasu Fujii ,  Kenichi Murakami

    IPC分类号： C21D8/12 ,  H01F1/14

    CPC分类号： C21D8/1283 ,  C21D8/1272

    摘要： Disclosed is a method for producing a grain-oriented electrical steel sheet having mirror surface containing 0.8 to 4.8% of Si in the form of a strip which has been subjected to a conventional series of operations including hot rolling with or without annealing, cold rolling once or at least twice with intermediate annealing to obtain a final thickness, decarburization annealing with or without nitriding treatment, coating the steel sheet with an annealing separator mainly containing non-hydrating oxide and final annealing, the improvement comprising:satisfying the relationship A!>0.2.times. O!where A! is the total concentration of alkali metal impurity in the annealing separator (weight %), and O! is the amount of oxygen contained in the steel sheet just prior to the final annealing (g/m.sup.2).

    摘要翻译： 公开了一种具有镜面的晶面取向电工钢板的制造方法，其具有含有带状的0.8〜4.8％的Si的方式，该钢带经过常规的一系列操作，包括或不进行退火的热轧，冷轧一次 或至少两次中间退火以获得最终厚度，或者不进行氮化处理的脱碳退火，用主要包含非水合氧化物和最终退火的退火分离器涂覆钢板，改进包括：满足关系[A]> 0.2×[O]其中[A]为退火分离剂中碱金属杂质的总浓度（重量％），[O]为最终退火前的钢板中所含的氧的量（g / m 2 ）。

    Grain oriented electrical steel sheet having specular surface
    8.
    发明授权
    Grain oriented electrical steel sheet having specular surface 失效
    具有镜面的晶粒取向电工钢板

    公开(公告)号：US5782998A

    公开(公告)日：1998-07-21

    申请号：US175430

    申请日：1994-01-07

    申请人： Yoshiyuki Ushigami ,  Takeo Nagashima ,  Shuichi Yamazaki ,  Hiroyasu Fujii ,  Yozo Suga ,  Tadashi Nakayama ,  Katsuro Kuroki ,  Yosuke Kurosaki

    发明人： Yoshiyuki Ushigami ,  Takeo Nagashima ,  Shuichi Yamazaki ,  Hiroyasu Fujii ,  Yozo Suga ,  Tadashi Nakayama ,  Katsuro Kuroki ,  Yosuke Kurosaki

    IPC分类号： C21D1/72 ,  C21D8/12

    CPC分类号： C21D8/1255 ,  C21D8/1277 ,  C21D8/1283 ,  C21D1/72 ,  C21D8/1272 ,  C21D8/1288 ,  C21D8/1294

    摘要： In order to provide a very low iron loss, it is necessary to render the surface of a steel sheet smooth (specular). In the present invention, this is effected in a finish annealing furnace to simultaneously attain a high magnetic flux density and a specular surface. Specifically, after the completion of decarburization annealing, a steel material is pickled to remove an oxide layer present on the surface of the steel sheet, coated with an annealing separator comprising a substance nonreactive or less reactive with SiO.sub.2 and then subjected to finish annealing to provide a grain oriented electrical steel sheet having a specular surface. Magnetic domain division and tension coating of the steel sheet can provide a low iron loss value. In the finish annealing, since no time is required for dehydration, the annealing time can be shortened.

    摘要翻译： PCT No.PCT / JP93 / 00136 Sec。 371日期1994年1月7日 102（e）日期1994年1月7日PCT提交1993年2月4日PCT公布。 公开号WO93 / 23577 日期1993年11月25日为了提供非常低的铁损，必须使钢板的表面光滑（镜面）。 在本发明中，这是在最终退火炉中实现的，以同时获得高的磁通密度和镜面。 具体地说，在脱碳退火结束后，将钢材酸洗以除去存在于钢板表面上的氧化物层，涂覆有退火分离体，该退火分离剂包含与SiO 2反应性较差或反应性低的物质，然后进行最终退火，以提供 具有镜面的晶粒取向电工钢板。 钢板的磁畴分割和张力涂层可以提供低铁损值。 在最终退火中，由于脱水不需要时间，可以缩短退火时间。

    Method of producing grain oriented silicon steel sheets each having a low watt loss and a mirror surface
    10.
    发明授权
    Method of producing grain oriented silicon steel sheets each having a low watt loss and a mirror surface 失效
    生产具有低谷损失和镜面表面的面向谷物的硅钢板的方法

    公开(公告)号：US5129965A

    公开(公告)日：1992-07-14

    申请号：US732076

    申请日：1991-07-18

    申请人： Hisashi Kobayashi ,  Yoshiyuki Ushigami ,  Hiroyasu Fujii

    发明人： Hisashi Kobayashi ,  Yoshiyuki Ushigami ,  Hiroyasu Fujii

    IPC分类号： C21D1/76 ,  C21D8/12

    CPC分类号： C21D8/1277 ,  C21D1/76 ,  C21D8/1272 ,  C21D8/1288

    摘要： A method of producing grain oriented silicon steel sheets each having a low watt loss, at an inexpensive cost and a high operational efficiency, wherein surfaces of each silicon steel sheet are given a mirror surface is disclosed. After completion of a finish annealing, forsterite films on the surface of each grain oriented silicon steel sheet are removed therefrom, and thereafter, the silicon steel sheet is annealed within the temperature range of 1000.degree. C. or higher in an atmosphere composed of a mixture gas comprising 20 to 80% by volume of hydrogen gas and 0 to 80% by volume of an inert gas, whereby surfaces of the silicon steel sheet are given a mirror surface. Subsequently, tensile stress additive films are formed on the surfaces of the silicon steel sheet, and consequently, the resultant silicon steel sheet exhibits a remarkably reduced watt loss.