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    • 1. 发明授权
    • Electrical insulation, manufacturing method, and use thereof
    • 电气绝缘,制造方法及其应用
    • US5154954A
    • 1992-10-13
    • US501292
    • 1990-03-19
    • Edward J. CroopThomas S. SnyderDean C. Westervelt
    • Edward J. CroopThomas S. SnyderDean C. Westervelt
    • H01B3/00H01B7/29
    • H01B3/008H01B7/292Y10S428/92Y10T428/1314Y10T428/1317Y10T428/1321Y10T428/1362Y10T428/1369Y10T428/251Y10T428/252Y10T428/2933Y10T428/294Y10T428/2982Y10T428/2996Y10T442/2475
    • Electrical insulation which has good dielectric strength, good radiation resistance, and good thermal resistance at temperatures of up to 500.degree. C. and, preferably up to 1700.degree. C., includes a substrate which is flexible, has the form of a filament, sheet, wrapper, tape or sleeve, and consists essentially of inorganic materials selected from the group consisting of inorganic fibers and metals, metalloids, or alloys; and at least one layer of at least one oxide of an alkoxide-forming element provided on the substrate to impregnate and/or coat same. The insulation is prepared by a process including applying a solution containing an alkoxy gel polymer, optionally additionally containing at least one inorganic material in finely divided form, to the substrate to provide a treated substrate useful as a preform when allowed to set under ambient conditions. The preform is applied to a part by, for example, wrapping, and is heated to pyrolyze the alkoxy gel polymer to its oxide and provide electrical insulation consisting essentially of inorganic materials. The application and pyrolysis steps may be repeated to build up the thickness of the at least one oxide.
    • 在高达500℃,优选高达1700℃的温度下具有良好的介电强度,良好的耐辐射性和良好的耐热性的电绝缘包括柔性的,具有长丝,片状 ,包装物,胶带或套筒,并且基本上由选自无机纤维和金属,准金属或合金的无机材料组成; 以及至少一层至少一种形成醇盐的元素的氧化物,其设置在基材上以浸渍和/或涂覆其上。 绝缘体通过包括将含有烷氧基凝胶聚合物的溶液(任选地另外含有至少一种细碎形式的无机材料)的溶液施加到基底上来制备,以提供当被允许在环境条件下设定时用作预成型体的经处理的基材。 通过例如包装将预成型件施加到部件上,并加热以将烷氧基凝胶聚合物热解成其氧化物,并提供基本上由无机材料组成的电绝缘体。 可以重复应用和热解步骤以建立至少一种氧化物的厚度。
    • 3. 发明授权
    • Method of making patterned dry resin coated sheet insulation
    • 制作图案干树脂涂层板材绝缘方法
    • US3974302A
    • 1976-08-10
    • US527458
    • 1974-11-26
    • Edward J. CroopHoward E. SaundersDean C. Westervelt
    • Edward J. CroopHoward E. SaundersDean C. Westervelt
    • B05B15/04B05D1/04B05D1/32B05D3/06B05D5/12D21H23/50H01B3/06H01B3/08H01B3/50H01B3/52H01B3/54H01F27/32H01F41/12B05D1/06
    • D21H23/50B05B15/045B05D1/045B05D5/12H01B3/06H01B3/084H01B3/50H01B3/52H01B3/54H01F27/323H01F41/122B05D1/32B05D2203/22B05D2252/02B05D2252/10B05D3/068Y10T29/49071
    • A porous, electrical insulating adhesive substrate is made by (A) electrostatically coating a flexible sheet material with heat reactive adhesive resin particles, having an average particle size of between about 1 micron to 2,000 microns, the adhesive particles are applied in a predetermined pattern on the sheet covering from about 10 percent to 90 percent of the sheet material area, the area between the resin pattern not being patterned and then (B) heating the patterened coated sheet material between about 65.degree.C to 250.degree.C, forming a discontinuous, 0.25 mil to 25 mil (0.006 mm to 0.635 mm) thick, dry coating pattern of heat reactive adhesive particles bonded to the sheet material, said heat reactive adhesive coating covering from about 10 percent to 90 percent of the sheet material area; the patterned coated sheet may then be inserted as an oil permeable layer insulation between high voltage windings and low voltage windings and between layers of high and low voltage windings in a wound coil assembly, after which the assembly can be heated at a temperature and for a time effective to securely bond the winding layers together, and thus provide a porous, oil permeable, bonded transformer coil assembly.
    • 多孔电绝缘粘合剂基材是通过(A)用热反应性粘合树脂颗粒静电涂覆柔性片材制成的,其平均粒度为约1微米至2,000微米,粘合剂颗粒以预定图案施加在 片材覆盖片材面积的约10%至90%,树脂图案之间的区域未被图案化,然后(B)在约65℃至250℃之间加热被镀覆的片材,形成不连续的, 0.25密耳至25密耳(0.006mm至0.635mm)的厚的,与片材材料结合的热反应性粘合剂颗粒的干涂层图案,所述热反应性粘合剂涂层覆盖片材面积的约10%至90%; 然后可以将图案化的涂覆片材作为高压绕组和低压绕组之间的油渗透层绝缘以及在缠绕线圈组件中的高压和低压绕组的层之间插入,之后组件可以在一个温度下加热, 时间有效地将绕组层牢固地粘合在一起,从而提供多孔的,可透油的,粘合的变压器线圈组件。