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Trolley wire
Copper wire used to send electricity to train`s pantographs. The majority are not pure copper (most cases contain a small amount of tin, etc.). Once in a while there may even be the ones with iron cores.
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Origin
A trolley wire is a wire that runs along the upper space of the track, through which the electricity that powers the train through the pantograph passes. Therefore, it is generated when the electric railway companies replace the overhead wire or may also come from electric wire manufacturers.
process until becomes usable material
Since the trolley wire may be collected in a coil form with a length of several meters, it is cut with a special cutting machine called the shirring machine. At the same time with the cutting process, visually check for foreign unwanted materials and iron cores materials take place. Those wires are cut into drums and jumbo bags sizes and iron detectors machine are used to detect the iron mixed-in before the wires are shipped to manufacturers as metal raw materials.
Manufacturer
The trolley wire delivered to the manufacturer is melted and cast in an electrical or reverberatory furnace. The cast ingots are remanufactured as semi-finished copper plates and strips by techniques such as rolling and extrusion.
Such semi-finished products are used for equipment such as electrical and communication devices, and are recycled into various products such as parts for mobile phones and connector parts for sensors.
YOKOHAMA BRANCH
12/F YCS BLDG, 5-1 SAKAE-CHO, KANAGAWA-KU, YOKOHAMA-SHI, KANAGAWA, 221−0052, JAPAN
TEL: +81-(0)45-444-6333
Fax: +81-(0)45-444-6330