公开(公告)号：EP0415328A2

公开(公告)日：1991-03-06

申请号：EP90116400.4

申请日：1990-08-27

申请人： FUJIKURA LTD.

发明人： Takayama, Teruyuki, c/o FUJIKURA Ltd. ,  Tominaga, Haruo, c/o FUJIKURA Ltd. ,  Yokoyama, Kazuo, c/o FUJIKURA Ltd. ,  Nagasawa, Hiroki, c/o RAILWAY TECHNICAL RES. INST. ,  Aoki, Sumihisa, c/o RAILWAY TECHNICAL RES. INST.

IPC分类号： B60M1/13

CPC分类号： B21B1/16 ,  B21B2001/383 ,  B60M1/135 ,  Y10T29/49982

摘要： First, a steel wire (1) is continuously dipping in molten copper or molten copper alloy so that copper or copper alloy builds up and solidifies on the peripheral surface of said steel wire, thereby obtaining an initial copper-clad steel wire (2). Then, the initial copper-­clad steel wire (2) is subjected a first cycle of hot rolling by a caliber roll. The hot-rolled wire is dipped in molten copper or molten copper-alloy (21) at least once so that copper or copper alloy builds up and solidifies thereon, thereby obtaining a final copper-­clad steel wire.
The final copper-clad steel wire is hot-rolled at a temperature of 750 to 850°C and with a rolling ratio of 10 to 40%. Then, the hot-rolled wire is cold-rolled with a reduction of area of 20% or more.
Thus, 75 to 90% of the cross sectional area of the obtained copper-clad steel trolley wire is occupied by the copper or copper alloy covering layer (3) so that the electric conductivity of the trolley wire is very high as 80% IACS or more. Moreover, the cast rod (2) is hot-rolled so that the core (1) and the covering layer (3) are metallurgically bonded to each other, thereby obtaining a copper-clad steel trolley wire whose core and covering layer are firmly bonded. Also, the hot-­rolled wire is cold-rolled so that the trolley wire with a high strength is obtained.

摘要翻译： 首先，将钢丝（1）连续地浸入熔融铜或熔融铜合金中，使铜或铜合金在所述钢丝的外周面上积聚固化，从而得到初始的铜包钢线（2）。 然后，通过口径辊对初始的铜包钢线（2）进行第一次热轧循环。 将热轧钢丝浸入熔融铜或熔融铜合金（21）中至少一次，使铜或铜合金在其上积聚固化，由此得到最终的铜包覆钢丝。 最后的铜包钢线在750〜850℃的温度下以10〜40％的压延比进行热轧。 然后，将热轧钢丝以20％以上的面积进行冷轧。 因此，所得到的铜包覆钢架线的横截面积的75〜90％被铜或铜合金覆盖层（3）占据，使得电车线的导电性非常高，为80％IACS或 更多。 此外，铸造棒（2）被热轧，使得芯（1）和覆盖层（3）彼此冶金结合，从而获得其覆盖层牢固地结合的铜包钢电车线 。 此外，热轧钢丝被冷轧，从而获得高强度的电车线。

公开(公告)号：EP0415328B1

公开(公告)日：1994-11-02

申请号：EP90116400.4

申请日：1990-08-27

申请人： FUJIKURA LTD.

发明人： Takayama, Teruyuki, c/o FUJIKURA Ltd. ,  Tominaga, Haruo, c/o FUJIKURA Ltd. ,  Yokoyama, Kazuo, c/o FUJIKURA Ltd. ,  Nagasawa, Hiroki, c/o RAILWAY TECHNICAL RES. INST. ,  Aoki, Sumihisa, c/o RAILWAY TECHNICAL RES. INST.

IPC分类号： B60M1/13

CPC分类号： B21B1/16 ,  B21B2001/383 ,  B60M1/135 ,  Y10T29/49982

公开(公告)号：EP0415328A3

公开(公告)日：1992-01-29

申请号：EP90116400.4

申请日：1990-08-27

申请人： FUJIKURA LTD.

发明人： Takayama, Teruyuki, c/o FUJIKURA Ltd. ,  Tominaga, Haruo, c/o FUJIKURA Ltd. ,  Yokoyama, Kazuo, c/o FUJIKURA Ltd. ,  Nagasawa, Hiroki, c/o RAILWAY TECHNICAL RES. INST. ,  Aoki, Sumihisa, c/o RAILWAY TECHNICAL RES. INST.

IPC分类号： B60M1/13

CPC分类号： B21B1/16 ,  B21B2001/383 ,  B60M1/135 ,  Y10T29/49982

摘要： First, a steel wire (1) is continuously dipping in molten copper or molten copper alloy so that copper or copper alloy builds up and solidifies on the peripheral surface of said steel wire, thereby obtaining an initial copper-clad steel wire (2). Then, the initial copper-­clad steel wire (2) is subjected a first cycle of hot rolling by a caliber roll. The hot-rolled wire is dipped in molten copper or molten copper-alloy (21) at least once so that copper or copper alloy builds up and solidifies thereon, thereby obtaining a final copper-­clad steel wire. The final copper-clad steel wire is hot-rolled at a temperature of 750 to 850°C and with a rolling ratio of 10 to 40%. Then, the hot-rolled wire is cold-rolled with a reduction of area of 20% or more. Thus, 75 to 90% of the cross sectional area of the obtained copper-clad steel trolley wire is occupied by the copper or copper alloy covering layer (3) so that the electric conductivity of the trolley wire is very high as 80% IACS or more. Moreover, the cast rod (2) is hot-rolled so that the core (1) and the covering layer (3) are metallurgically bonded to each other, thereby obtaining a copper-clad steel trolley wire whose core and covering layer are firmly bonded. Also, the hot-­rolled wire is cold-rolled so that the trolley wire with a high strength is obtained.