B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/89
B23K 11/30 (2006.01) H01R 39/64 (2006.01)
Patent
CA 1260552
ABSTRACT OF THE DISCLOSURE An electrode roll for an electrical resistance seam welding machine comprising a stator being substantially made of copper or a copper alloy, a rotor being substantially or in part made of copper or a copper alloy rotatably mounted on a periphery of the stator, a gap portion formed by the stator and the rotor and a conductive liquid metal which is a fusible alloy composed mainly of gallium and sealed in the gap portion, wherein at least a portion of the filling hole that may come in contact with the conductive liquid metal is fabricated with a metal or metal alloy resistant to corrosion by the fusible alloy; the surfaces of both rotor and stator facing the gap portion are covered with a layer or layers of a metal or metal alloy that is resistant to corrosion by the fusible alloy and such layer or layers are further covered with another thin layer of metal which has an excellent wettability with the fusible alloy.
516307
Kato Hiroyuki
Kawai Yasushi
Masuda Shunsuke
Shudo Katsuyoshi
Yamamoto Masatoshi
Daiwa Can Company Limited
Riches Mckenzie & Herbert Llp
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