LOW POROSITY GLASS COATINGS FORMED ON COILED WIRES, HIGH TEMPERATURE DEVICES CONTAINING THE SAME, AND METHODS FOR THE FABRICATION THEREOF

    公开(公告)号:US20200098516A1

    公开(公告)日:2020-03-26

    申请号:US16141263

    申请日:2018-09-25

    Abstract: Methods for fabricating wires insulated by low porosity glass coatings are provided, as are high temperature electromagnetic (EM) devices containing such wires. In embodiments, a method for fabricating a high temperature EM device includes applying a glass coating precursor material onto a wire. The glass coating precursor material contains a first plurality of glass particles having an initial softening point. after application onto the wire, the glass coating precursor material is heat treated under process conditions producing a crystallized intermediary glass coating having a modified softening point exceeding the initial softening point. The crystallized intermediary glass coating is then infiltrated with a filler glass precursor material containing a second plurality of glass particles. After infiltration, the filler glass precursor material is heat treated to consolidate the second plurality of glass particles into the crystallized intermediary glass coating and thereby yield a low porosity glass coating adhered to the wire.

    HIGH TEMPERATURE LAMINATED STATOR CORES AND METHODS FOR THE MANUFACTURE THEREOF

    公开(公告)号:US20190020229A1

    公开(公告)日:2019-01-17

    申请号:US16121146

    申请日:2018-09-04

    Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

    Low porosity glass coatings formed on coiled wires, high temperature devices containing the same, and methods for the fabrication thereof

    公开(公告)号:US11437188B2

    公开(公告)日:2022-09-06

    申请号:US16141263

    申请日:2018-09-25

    Abstract: Methods for fabricating wires insulated by low porosity glass coatings are provided, as are high temperature electromagnetic (EM) devices containing such wires. In embodiments, a method for fabricating a high temperature EM device includes applying a glass coating precursor material onto a wire. The glass coating precursor material contains a first plurality of glass particles having an initial softening point. After application onto the wire, the glass coating precursor material is heat treated under process conditions producing a crystallized intermediary glass coating having a modified softening point exceeding the initial softening point. The crystallized intermediary glass coating is then infiltrated with a filler glass precursor material containing a second plurality of glass particles. After infiltration, the filler glass precursor material is heat treated to consolidate the second plurality of glass particles into the crystallized intermediary glass coating and thereby yield a low porosity glass coating adhered to the wire.

    High temperature laminated stator cores and methods for the manufacture thereof

    公开(公告)号:US10958115B2

    公开(公告)日:2021-03-23

    申请号:US16121146

    申请日:2018-09-04

    Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

    Methods for manufacturing high temperature laminated stator cores

    公开(公告)号:US10097054B2

    公开(公告)日:2018-10-09

    申请号:US14609752

    申请日:2015-01-30

    Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

    HIGH TEMPERATURE LAMINATED STATOR CORES AND METHODS FOR THE MANUFACTURE THEREOF
    6.
    发明申请
    HIGH TEMPERATURE LAMINATED STATOR CORES AND METHODS FOR THE MANUFACTURE THEREOF 审中-公开
    高温层压定子线及其制造方法

    公开(公告)号:US20160226323A1

    公开(公告)日:2016-08-04

    申请号:US14609752

    申请日:2015-01-30

    Abstract: Embodiments of laminated stator cores suitable for usage in high temperature applications are provided, as are embodiments of methods for manufacturing high temperature laminated stator core. In one embodiment, the method includes obtaining a plurality of coated laminates each comprising a laminate over which a coating precursor layer is formed. The coating precursor layer contain inorganic dielectric particles having a softening point. The plurality of coated laminates are arranged in a laminate stack, which is then fired at temperatures equal to or greater than the softening point of the inorganic dielectric particles. During firing, a compressive force is applied to the laminate stack sufficient to consolidate the inorganic dielectric particles into a plurality of coherent interlaminate dielectric layers electrically insulating and bonding together the plurality of coated laminates as the high temperature laminated stator core.

    Abstract translation: 提供了适用于高温应用的层叠定子铁芯的实施例,如制造高温层压定子铁心的方法的实施例。 在一个实施方案中,该方法包括获得多个涂覆的层压体,每个涂层层压板包括形成有涂层前体层的层压板。 涂层前体层含有具有软化点的无机介电粒子。 多个涂覆的层压体被布置在层压叠层中,然后在等于或大于无机介电颗粒的软化点的温度下烧制。 在焙烧期间,将压缩力施加到叠层叠层上,足以将无机介电颗粒固结成多个相干层间电介质层,将多个涂覆的层压板电绝缘并结合在一起作为高温层压定子芯。

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