Electrically insulated coil
    1.
    发明授权
    Electrically insulated coil 失效
    电绝缘线圈

    公开(公告)号:US4335367A

    公开(公告)日:1982-06-15

    申请号:US178154

    申请日:1980-08-14

    IPC分类号: H01F27/32 B32B19/00 B32B27/38

    摘要: An electrically insulated coil is composed of a coil and a mica tape containing a first resinous composition, wound upon the coil; the resinous composition containing a maleimide compound, an epoxy resin, a curing catalyst consisting of an aluminum compound, and a curing accelerator selected from the group consisting of a silane compound having a hydroxyl group and a polysiloxane compound having a hydroxyl group; the curing catalyst and the curing accelerator each being in an amount of about 0.0001 to 5% by weight based on the total amount of the maleimide compound and the epoxy resin; and the resinous composition being cured by heating after the mica tape is wound around the coil.The electrically insulated coil may further contain a second resinous composition comprising an epoxy resin and an acid anhydride, the second resinous composition impregnating the mica tape after the mica tape is wound around the coil, and being heat-cured together with the first resinous composition.

    摘要翻译: 电绝缘线圈由线圈和包含缠绕在线圈上的第一树脂组合物的云母带组成; 含有马来酰亚胺化合物的树脂组合物,环氧树脂,由铝化合物组成的固化催化剂和选自具有羟基的硅烷化合物和具有羟基的聚硅氧烷化合物的固化促进剂; 固化催化剂和固化促进剂各自相对于马来酰亚胺化合物和环氧树脂的总量为约0.0001至5重量%; 并且在将云母带缠绕在线圈上之后通过加热固化树脂组合物。 电绝缘线圈还可以含有包含环氧树脂和酸酐的第二树脂组合物,第二树脂组合物在云母带缠绕在线圈上之后浸渍云母带,并与第一树脂组合物一起热固化。