Method for hardening the surfaces of work pieces made of stainless steel, and a molten salt bath for realizing the method
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United States of America Patent
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Dec 27, 2011
Grant Date -
May 6, 2010
app pub date -
Oct 31, 2008
filing date -
Oct 31, 2007
priority date (Note) -
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Abstract
A method for hardening the surfaces of work pieces made from stainless steel includes submerging the work pieces into a molten salt bath having the composition: potassium acetate 60-100 weight %; sodium acetate 0-100 weight %; metal salt 0-2 weight %, and are subjecting the work pieces to the molten salt bath for a period of 24 to 240 hours, during which the temperature of the molten salt bath is maintained less than 400° C.
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