Hot-tinned wire for electrotechnical purposes and method for its

Details Hot-tinned wire for electrotechnical purposes and method for its Hot-tinned wire for electrotechnical purposes and method for its

1974-10-31

1977-03-29

Rutledge, L. Dewayne

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291916, 29199, 427118, 427357, 427405, 427433, B32B 1500, C23C 104

Patent

active

040146600

ABSTRACT:
Hot-tinned wire of copper or copper alloys is provided having a first coating of from 0.5 to 2 .mu.m thick consisting of an SnBi alloy containing 2 to 10 percent by weight Bi or of a SnNi alloy containing 0.2 to 1 percent by weight Ni, and having a second coating 1 to 4 .mu.m thick consisting of pure tin or of a SnPb alloy. The first coating acts as diffusion retarding film and retards the Cu.sub.3 Sn phase growth considerably.

REFERENCES:
patent: 3573008 (1971-03-01), Akin, Jr.
patent: 3579377 (1971-05-01), Schreiner et al.
patent: 3642523 (1972-02-01), Schreiner et al.

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