Member for immersion in hot dip galvanizing bath and method for producing the same
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United States of America Patent
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-
Sep 4, 2001
Issued Date -
N/A
app pub date -
May 28, 1999
filing date -
Mar 27, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A member used in contact with a hot dip galvanizing bath, such as a sinker roll, a support roll or a bearing, is produced by nitriding stainless steel to form a nitride layer and a nitrogen-diffused layer on the surface thereof. The member used in contact with a hot dip galvanizing bath is formed on its surface with the nitride layer by nitriding it in a salt bath containing a cyanide, a cyanate, a carbonate and the like or by heat-treating it in an atmosphere containing ammonium or nitrogen.
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