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US07938878B2 Fine grained cemented carbide with refined structure 有权
精细结构的细粒硬质合金

Fine grained cemented carbide with refined structure
摘要:
The present invention relates to a fine grained WC-Co cemented carbide. By adding an extremely small amount of Ti, V, Zr, Ta or Nb alone or in combinations, a grain refined cemented carbide structure with less abnormal WC-grains has been obtained.
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