Hard metal or cermet body and method for producing the same
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United States of America Patent
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Jan 14, 2003
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N/A
app pub date -
Nov 3, 2000
filing date -
Jul 8, 1998
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Abstract
The invention relates to a hard metal or cermet body with a hard material phase consisting of WC and/or at least one carbide, nitride, carbonitride and/or oxicarbonitride of at least one of the elements from group IVa, Va, or VIa of the periodic table and a binding metal phase consisting of Fe, Co and/or Ni, said binding metal phase making up 3 to 25 mass %. In particular, WC crystallites should protrude beyond the hard metal or cermet surface of the by 2 to 20 .mu.m in order to improve the adhesion of surface layers that are applied.
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