Composition and method for forming insulating films on electrical steel
sheets
    1.
    发明授权
    Composition and method for forming insulating films on electrical steel sheets 失效
    用于在电工钢板上形成绝缘膜的组合物和方法

    公开(公告)号:US5407990A

    公开(公告)日:1995-04-18

    申请号:US663959

    申请日:1991-03-20

    CPC分类号: C23C22/74 B23K35/226 H01F1/18

    摘要: A composition for forming insulating films on electrical steel sheets includes a (meth)acrylate ester polymer, modified into a polymer containing an ethylenic unsaturated carboxylic acid component as an essential copolymerizable component, optionally with other copolymerizable vinylic compound components. The composition is used in the form of an aqueous emulsion with or without methacrylate ester base polymer powders. The composition has low expandability and coatability and provides an improved film. Especially when the composition contains methacrylate ester base polymer powders, improved weldability is achieved and high-quality coated steel sheet products are provided. A method of forming the insulating films is also described.

    摘要翻译: PCT No.PCT / JP90 / 01029 Sec。 371日期1991年3月20日 102(e)1991年3月20日PCT PCT 1990年8月13日PCT公布。 出版物WO91 / 0282800 1991年3月7日。用于在电工钢板上形成绝缘膜的组合物包括(甲基)丙烯酸酯聚合物,改性成含有烯属不饱和羧酸组分作为必须的可共聚组分的聚合物,任选与其它可共聚的乙烯基化合物组分 。 该组合物以具有或不具有甲基丙烯酸酯基础聚合物粉末的水性乳液的形式使用。 该组合物具有低膨胀性和涂布性,并提供改进的膜。 特别是当组合物含有甲基丙烯酸酯基聚合物粉末时,可获得改善的焊接性,并且提供高质量的涂层钢板产品。 还描述了形成绝缘膜的方法。

    Process for producing electrical steel sheet
    4.
    发明授权
    Process for producing electrical steel sheet 失效
    电工钢板生产工艺

    公开(公告)号:US4762575A

    公开(公告)日:1988-08-09

    申请号:US874088

    申请日:1986-06-13

    IPC分类号: H01F1/16 C21D8/12 H01F1/04

    摘要: A process for the production of an electrical steel sheet having the ideal (100) [001] cube texture of iron of iron alloy, comprising cold rolling a sheet of a single crystal or large grained crystals of iron or iron alloy, in which said single crystal is or a majority of said large grained crystals are oriented so that the pole of the {114} plane may form an angle not greater than 15.degree. with the normal direction of the plane of the sheet, and the direction may form an angle of not greater than 15.degree. with a single direction in the plane of the sheet, in said single direction at a rolling reduction of at least 40%, and annealing the rolled sheet to form a primary recrystallization texture of fine grains of an average grain size of not larger than 5 mm under conditions preventing the occurrence of secondary recrystallization.

    摘要翻译: 一种生产具有铁合金铁理想的(100)[001]立方体结构的电工钢板的方法,包括冷轧一块单晶或大的铁或铁合金晶粒,其中所述单 晶体是或大部分所述大晶粒取向,使得{114}面的极点可以与片材的平面的法线方向形成不大于15°的角度,并且可以形成<401>方向 在片材的平面中具有不大于15°的单向的角度,在所述单一方向上以至少40%的压下率进行退火,并且对轧制板退火以形成平均的细晶粒的初次再结晶织构 在防止二次再结晶发生的条件下,晶粒尺寸不大于5mm。