Process for the preparation of rope and spring wire of carbon steel with an improved corrosion resistance
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United States of America Patent
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May 13, 1980
Issued Date -
N/A
app pub date -
Nov 8, 1978
filing date -
Feb 24, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention refers to a process for the preparation of carbon steel wire for cables and springs and having an improved resistance to corrosion. The invention is characterized in that in a first step, a conventional hot galvanizing bath (bath No. 1) is used for plating, and in a second plating step, a bath (bath No. 2) is used consisting of an alloy of zinc and one or more of the metals Sn, Cd, Al, Pb, Cu and Ni, at a temperature not less than 30.degree. C. and not more than 75.degree. C. above the liquidus temperature of said alloy composition. The wire thus treated is used for the preparation of cables and springs.
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