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    • 3. 发明专利
    • Method of plating bundle of fiber
    • 光纤敷设方法
    • JPS58193391A
    • 1983-11-11
    • JP7355682
    • 1982-04-30
    • Hitachi Cable Ltd
    • ISHIKAWA TETSUOSUZUMURA TAKASHIYAMAGISHI RIYOUZOUYOSHIDA HIROMICHI
    • C25D7/00C23C18/16C23C18/31C23C18/34C23C18/40C25D7/06D06B3/02D06M11/00D06M11/83D06M11/84G09G5/10
    • PURPOSE: To plate each of fibrous strands with uniform thickness without the formation of damages or disconnection in the fibrous strands, by letting the bundle of fibers run along the same direction as that of the stream of a plating liquid ejected through a rectangular ejection opening, and opening the bundle of fibers by the flow of the plating liquid.
      CONSTITUTION: Two or more nozzles 4 having rectangular ejection openings are provided at the side of inroducing the bundle 1 of fibers inside a plating tank 3, so that a plating liquid is sprayed in parallel with the direction of carrying the bundle 1 of fibers and circulated toward the side of discharging the bundle of fibers. In addition, a rectifying plate 6 having many small holes is provided at a proper domain from the vicinity of the nozzles 4 to the direction of discharging the bundle 1 of fibers, to define a parallel passage for the parallel stream of the plating liquid from the nozzles 4. Thus, the bundle 1 of fibers being twisted is sufficiently opened by the stream of the sprayed plating liquid, and each of fibrous strands can be stably plated with uniform thickness by the parallel stream of the plating liquid.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:通过使纤维束沿着与通过矩形喷射口喷射的电镀液流的方向相同的方向延伸,以均匀厚度平板化每个纤维线,而不会在纤维束中形成损伤或断开, 并通过电镀液的流动来打开纤维束。 构成:在引入电镀槽3内的纤维束1的一侧设置两个以上具有矩形喷射口的喷嘴4,使得电镀液体与携带纤维束1的方向平行地喷射并循环 朝向排出纤维束的一侧。 此外,具有许多小孔的整流板6设置在从喷嘴4附近到排出纤维束1的方向的适当范围,以限定平行流动的电镀液体 因此,被扭转的纤维束1被喷镀的液体的液体充分地打开,并且每个纤维束可以通过电镀液体的平行流稳定地均匀地镀覆均匀的厚度。
    • 8. 发明专利
    • SYSTEM FOR MONITORING ETCHING RATE
    • JPS6263681A
    • 1987-03-20
    • JP20281685
    • 1985-09-13
    • HITACHI CABLE
    • SUZUKI KATSUMIISHIKAWA TETSUOSATO HIDEAKI
    • C23F1/00
    • PURPOSE:To easily monitor an etching rate and to make a criterion exact by impressing an AC voltage of a prescribed frequency between a material to be etched and counter electrode and measuring the polarization resistance. CONSTITUTION:The electrode which is the material to be etched and the counter electrode of the material electrochemically nobler than said material are immersed in an etching soln., then the AC voltage of a low frequency and AC voltage of a high frequency are impressed between the above-mentioned two electrodes. The above-mentioned low frequency is so adjusted that the impedance by the interface capacity of the electrodes and the etching soln. is made substantially higher than the polarization resistance of the electrodes. The above- mentioned high frequency is so adjusted that the impedance by the above- mentioned interfacial capacity is made substantially smaller than the polarization resistance of the electrodes. The above-mentioned polarization resistance is then measured and the etching rate of the material to be etched is monitored.