Metal fusion bonding – Process – Encasing a rodlike core within a substantially coextensive...
Patent
1977-05-31
1979-05-29
Lanham, C. W.
Metal fusion bonding
Process
Encasing a rodlike core within a substantially coextensive...
228156, 228193, B21D 3904, H01B 1322
Patent
active
041565002
ABSTRACT:
A method of producing a copper clad steel wire, which comprises the steps of preparing a 5 to 15 mm diameter steel rod and a 21 to 66.7 mm width copper tape; continuously supplying the steel rod and the copper tape separately and cleaning the surfaces thereof; forming the copper tape in tubular form such that the copper tape can cover the steel rod while supplying the steel rod and the copper tape in parallel, and welding the edges of the copper tape in a non-oxidizing atmosphere; sinking the tubular copper tape sufficiently for the copper tape to substantially come into contact with the steel rod to form a copper clad steel rod; cold-drawing the copper clad steel rod and/or hot working the clad rod at a temperature of 400.degree. to 800.degree. C. to reduce its cross-sectional area by more than 20%; and then annealing the copper clad steel rod at a temperature of 300.degree. to 1050.degree. C.
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patent: 3894675 (1975-07-01), Klebl et al.
patent: 3952571 (1976-04-01), Yokota et al.
Ihara Susumu
Nishimune Koichi
Yoshida Shigeaki
Lanham C. W.
Ramsey K. J.
Sumitomo Electric Industries Ltd.
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