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    • 57. 发明授权
    • Process for producing a resin bonded magnet structure
    • 生产树脂粘结磁体结构的方法
    • US5149477A
    • 1992-09-22
    • US840634
    • 1992-02-21
    • Fumitoshi YamashitaAkihiko WatanabeMasami Wada
    • Fumitoshi YamashitaAkihiko WatanabeMasami Wada
    • H01F1/08C08L63/00H01F1/057H01F41/02H02K1/02H02K15/03
    • H01F1/0578C08L63/00H02K1/02H02K15/03Y10S264/58
    • A process for producing resin bonded magnet structures is disclosed which includes the steps of: (a) adding a solid epoxy resin of at least one epoxy oligomer and a microcapsule which contains at least one liquid epoxy resin to a melt spun powder of a rare earth element-iron alloy to form a granulated intermediate material, wherein the epoxy oligomer has alcoholic hydroxyl groups in the molecular chain thereof and the solid epoxy resin has a softening temperature (Durran's melting point) of 65.degree. C. to 85.degree. C.; (b) mixing the granulated intermediate material with a powdered curing agent and a lubricant to form a compound; (c) forming a green body of a resin bonded magnet by compressing the compound, and then integrating the green body directly with a supporting member; and (d) curing the solid and liquid epoxy resins in the green body by application of heat to form a rigid structure of the resin bonded magnet integrated with the supporting member.
    • 公开了一种生产树脂粘结磁体结构的方法,其包括以下步骤:(a)将至少一种环氧低聚物的固体环氧树脂和含有至少一种液体环氧树脂的微胶囊加入到稀土熔融纺丝粉末中 元素 - 铁合金以形成颗粒状中间体材料,其中环氧低聚物在其分子链中具有醇羟基,固体环氧树脂的软化温度(Durran的熔点)为65℃至85℃。 (b)将颗粒状中间材料与粉末状固化剂和润滑剂混合以形成化合物; (c)通过压缩化合物形成树脂粘结磁体的生坯,然后将生坯直接与支撑构件一体化; 和(d)通过加热来固化生坯中的固体和液体环氧树脂,以形成与支撑构件一体化的树脂粘结磁体的刚性结构。