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    • 23. 发明申请
    • APPARATUS FOR PREPARING ALLOY SHEET
    • 制备合金板的装置
    • US20100186923A1
    • 2010-07-29
    • US12668511
    • 2008-05-28
    • Boping HuYizhong WangXiaolei RaoJingdong Jia
    • Boping HuYizhong WangXiaolei RaoJingdong Jia
    • B22D27/02B22D27/04
    • B22D23/003B22D11/0611B22D11/062B22D11/0651B22D11/0665B22F9/002B22F9/08B22F2009/048
    • Apparatus for preparing alloy sheet, comprising a container for melted alloy liquid positioned in an inductive heating coil; a liquid flow stabilization outfit comprising a barrel container with open bottom and a base board arranged below the open bottom, and the barrel container's upper part being positioned below the mouth of the container for melted alloy liquid; a quenching wheel positioned below the melted alloy liquid flown from the liquid flow stabilization outfit's base board, which carries the melted alloy liquid and spins it into strips, so as to make the strips become alloy sheets after collision; a transferring outfit positioned below the wheel for further cooling and transferring of the alloy sheets, characterized in that the quenching wheel is equipped with a means for differentiating cooling rate for various alloy sheets. The apparatus for preparing alloy sheets of this invention can produce rare earth-transition metal alloy sheets at different cooling rates, and make a proper distribution of grain size. The magnetic material made of these alloy sheets is good in orientation, easy for post-sinter processing, and suitable for mass production.
    • 用于制备合金片的装置,包括位于感应加热线圈中的用于熔融合金液体的容器; 一种液体流动稳定装置,包括具有开口底部的桶形容器和布置在开口底部下方的基板,并且桶形容器的上部位于用于熔融合金液体的容器口部下方; 位于熔融合金液体下方的淬火轮,其从液体流动稳定装置的基板流出,其携带熔融的合金液体并将其旋转成条带,以使得条带在碰撞之后成为合金板; 位于车轮下方的转移装置进一步冷却和转移合金板,其特征在于,所述淬火轮配备有用于区分各种合金板的冷却速率的装置。 本发明的合金薄板的制备装置可以以不同的冷却速度生产稀土 - 过渡金属合金薄片,并使晶粒尺寸适当分配。 由这些合金板制成的磁性材料的取向性好,烧结后处理容易,适合批量生产。
    • 24. 发明授权
    • Method for providing a perpendicular magnetic recording head
    • 提供垂直磁记录头的方法
    • US08793866B1
    • 2014-08-05
    • US11960596
    • 2007-12-19
    • Jinqiu ZhangLiubo HongYong ShenYizhong WangHai SunLi He
    • Jinqiu ZhangLiubo HongYong ShenYizhong WangHai SunLi He
    • G11B5/187C23C14/22
    • G11B5/3163G11B5/1278G11B5/3116
    • A method provides a PMR transducer. In one aspect, the method includes forming a trench in an intermediate layer using reactive ion etch(es). The trench top is wider than its bottom. In this aspect, the method also includes providing a seed layer using atomic layer deposition and providing a PMR pole on the seed layer. Portion(s) of the seed layer and PMR pole reside in the trench. In another aspect, the method includes providing a mask including a trench having a top wider than its bottom. In this aspect, the method includes providing mask material in the trench, providing an intermediate layer on the mask material and removing the mask material to provide another trench in the intermediate layer. In this aspect, the method also includes providing a PMR pole in the additional trench.
    • 一种方法提供PMR换能器。 一方面,该方法包括使用反应离子蚀刻在中间层中形成沟槽。 沟槽顶部比底部宽。 在这方面,该方法还包括使用原子层沉积提供种子层并在种子层上提供PMR极点。 种子层和PMR极的部分位于沟槽中。 在另一方面,该方法包括提供一种掩模,该掩模包括具有比其底部更宽的顶部的沟槽。 在这方面,该方法包括在沟槽中提供掩模材料,在掩模材料上提供中间层并去除掩模材料以在中间层中提供另一个沟槽。 在这方面,该方法还包括在附加沟槽中提供PMR极点。