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    • 7. 发明授权
    • Conductor strand formed of solid wires and method for making the
conductor strand
    • 由实心线形成的导体线和制造导线的方法
    • US4471161A
    • 1984-09-11
    • US467124
    • 1983-02-16
    • John D. Drummond
    • John D. Drummond
    • H01B5/08H01B7/00H01B13/02H01B13/00
    • D07B3/10H01B13/0221H01B5/08H01B7/0009D07B2207/206
    • A conductor strand 12 for an electric cable 10 is disclosed. The conductor strand includes a solid first wire 16 having a longitudinal axis A.sub.1, an inner layer of six solid wires 20 twisted helically about the first wire and an outer layer 24 formed of two different diameter wires. The outer layer includes six third wires 26 spaced circumferentially one from the other leaving a gap G therebetween. Disposed in each gap is a fourth wire 28 having a diameter which lies in a range of sixty-eight percent to seventy-eight percent of the diameter of the third wire. A method for making the cable is disclosed which includes the steps of helically twisting the inner layer about the first wire with a lay greater than the lay of the finished conductor, twisting the outer layer of wires about the inner layer of wire with that greater lay, and twisting the outer and inner wires about the first wire to reduce the lay to the lay of the finished conductor strand.
    • 公开了一种用于电缆10的导线12。 导体线包括具有纵向轴线A1的固体第一线16,六条固定线20的内层,其中第一线20围绕第一线扭转螺旋形,以及由两根不同直径的线形成的外层24。 外层包括六个彼此间隔开的第三线26,在它们之间留有间隙G. 在每个间隙中设置的是第四线28,其直径位于第三线的直径的百分之六十八至百分之八十八的范围内。 公开了一种用于制造电缆的方法,其包括以大于成品导体的铺设的布线螺旋地扭转围绕第一线的内层的步骤,用更大的布线围绕电线的内层扭转外层电线 并且围绕第一线扭转外线和内线,以减少成品导体绞线的铺设。
    • 9. 发明公开
    • Treatment of steel cord
    • Behandlung eines Stahlseils。
    • EP0627521A1
    • 1994-12-07
    • EP94200999.4
    • 1994-04-13
    • N.V. BEKAERT S.A.
    • De Waegenaere, JohanSabbe, Lucvan Giel, Frans
    • D07B3/10D07B7/02
    • D07B3/10D07B7/022D07B2207/206D07B2207/4072
    • A steel cord (12) having steel filaments (2) twisted so as to have a final twist pitch, is subjected to

      a step (i) of plastically deforming the steel filaments (2) by overtwisting the steel cord (12) until a twist pitch which is smaller than the final twist pitch,
      a step (ii) of untwisting the steel cord (12) until the final twist pitch,
      a step (iii) of further untwisting the steel cord (12) until a twist pitch which is greater than the final twist pitch,
      a step (iv) of twisting the steel cord (12) again to its final twist pitch.
      Steps (i) and (ii) are done under a first tension and steps (iii) and (iv) are done under a second tension, the second tension is lower than half the first tension.
    • 将具有扭曲成具有最终扭曲节距的钢丝(2)的钢丝帘线(12)经受使钢丝帘线(12)过度扭曲直到扭曲的使钢丝(2)发生塑性变形的步骤(i) 小于最终扭转节距的节距,将钢帘线(12)解捻直到最终扭转节距的步骤(ii),进一步将钢帘线(12)解捻的步骤(iii),直到较大的捻角 比最终扭转节距再次将钢帘线(12)扭转到其最终扭转节距的步骤(iv)。 步骤(i)和(ii)在第一张力下进行,并且步骤(iii)和(iv)在第二张力下进行,第二张力低于第一张力的一半。