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    • 5. 发明授权
    • Electrically conductive fibers, apparatus and method for the production
thereof
    • 导电纤维,其制造方法及其制造方法
    • US5173366A
    • 1992-12-22
    • US789539
    • 1991-11-08
    • Hideyuki MitamuraFumikazu YoshidaTatsuo Shimura
    • Hideyuki MitamuraFumikazu YoshidaTatsuo Shimura
    • D01D5/34D01F1/09D01F8/04
    • D01F1/09D01D5/34D01F8/04Y10T428/2929Y10T428/2931
    • Electrically conductive conjugate fibers having a diameter less than 50.mu.m. The fibers include a thermoplastic sheath and a low-melting metal core, with the core occupying 0.2 to 50% of the sectional area of the fiber. The sectional area of the core varies by less than 25% in the longitudinal direction, and the total length of the discontinuous portions of the core is 5 cm or less per meter. The fibers can be produced with a conjugate spinning nozzle. The low-melting metal is provided to the nozzle from the closed fusion tank located at a position below the spinning nozzle. The metal is supplied to the spinning nozzle by means of pressure from inert gas, which is supplied to an upper space of the fusion tank. The level of metal in the fusion tank is maintained substantially constant, and the pressure of the gas is controlled so as to maintain a pressure variation of 0.1 kg/cm.sup.2 or less.
    • 直径小于50微米的导电复合纤维。 纤维包括热塑性护套和低熔点金属芯,其中芯占纤维截面面积的0.2-50%。 芯的截面积沿纵向变化小于25%,芯的不连续部分的总长度为每米5厘米或更小。 纤维可以用复合纺丝喷嘴生产。 低熔点金属从位于纺丝喷嘴下方位置的封闭式熔化罐提供给喷嘴。 通过来自惰性气体的压力将金属供给到纺丝喷嘴,惰性气体被供应到熔化罐的上部空间。 熔池中的金属含量保持基本恒定,并且控制气体的压力以保持0.1kg / cm 2以下的压力变化。
    • 7. 发明授权
    • Method of making electrically conductive fibers
    • 制造导电纤维的方法
    • US5248468A
    • 1993-09-28
    • US786170
    • 1991-10-31
    • Hideyuki MitamuraFumikazu YoshidaTatsuo Shimura
    • Hideyuki MitamuraFumikazu YoshidaTatsuo Shimura
    • D01D5/34D01F1/09D01F8/04
    • D01D5/34D01F1/09D01F8/04
    • Electrically conductive conjugate fibers having a diameter less than 50 fm. The fibers include a thermoplastic sheath and a low-melting metal core, with the core occupying 0.2 to 50% of the sectional area of the fiber. The sectional area of the core varies by less than 25% in the longitudinal direction, and the total length of the discontinuous portions of the core is 5 cm or less per meter. The fibers can be produced with a conjugate spinning nozzle. The low-melting metal is provided to the nozzle from a closed fusion tank located at a position below the spinning nozzle. The metal is supplied to the spinning nozzle by means of pressure from inert gas, which is supplied to an upper space of the fusion tank. The level of metal in the fusion tank is maintained substantially constant, and the pressure of the gas is controlled so as to maintain a pressure variation of 0.1 kg/cm.sup.2 or less.
    • 直径小于50微米的导电复合纤维。 纤维包括热塑性护套和低熔点金属芯,其中芯占纤维截面面积的0.2-50%。 芯的截面积沿纵向变化小于25%,芯的不连续部分的总长度为每米5厘米或更小。 纤维可以用复合纺丝喷嘴生产。 将低熔点金属从位于纺丝喷嘴下方位置的封闭的熔化罐提供给喷嘴。 通过来自惰性气体的压力将金属供给到纺丝喷嘴,惰性气体被供应到熔化罐的上部空间。 熔池中的金属含量保持基本恒定,并且控制气体的压力以保持0.1kg / cm 2以下的压力变化。