METHOD FOR MAGNETIZING MULTIPLE ZONES IN A MONOLITHIC PIECE OF MAGNETIC MATERIAL
    3.
    发明申请
    METHOD FOR MAGNETIZING MULTIPLE ZONES IN A MONOLITHIC PIECE OF MAGNETIC MATERIAL 审中-公开
    在磁性材料的单片中磁化多个区域的方法

    公开(公告)号:WO2016053379A1

    公开(公告)日:2016-04-07

    申请号:PCT/US2015/015678

    申请日:2015-02-12

    Applicant: APPLE INC.

    CPC classification number: H01F13/003

    Abstract: An article having a multiple magnetic polarities and a method for making the article are disclosed. The article can be a monolithic substrate form from a metallic material or materials. The article may include a first magnetic polarity and a second magnetic polarity opposite the first magnetic polarity. Methods for making the article include provide either providing a monolithic substrate having a first magnetic polarity, or applying a first magnetic field to the monolithic substrate to impart a first magnetic polarity. The method may also include raising the temperature of the monolithic substrate in order to reduce the coercivity of the monolithic substrate. The temperature of the monolithic substrate may also be selectively raised to lower the coercivity of the monolithic substrate in associated areas. By lowering the coercivity, the second magnetic polarity may be imparted on the monolithic substrate.

    Abstract translation: 公开了具有多个磁极性的制品和制造该制品的方法。 该制品可以是由金属材料或材料制成的整体衬底形式。 物品可以包括与第一磁极性相反的第一磁极性和第二磁极性。 制造该制品的方法包括提供具有第一磁极性的单片基板,或向整体式基板施加第一磁场以赋予第一磁极性。 该方法还可以包括提高整体式衬底的温度以便降低整体式衬底的矫顽力。 整体式衬底的温度也可以选择性地升高以降低相关区域中整体衬底的矫顽力。 通过降低矫顽力,可以将第二磁极性赋予单片基板。

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