| 摘要 |
1510684 Coated cemented carbide bodies FRIED KRUPP GmbH 25 July 1975 [26 July 1974] 31302/75 Headings C7D and C7F A hard metal body of at least one carbide of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W cemented with Fe, Co or Ni is coated with a layer of a metal carbide, e.g. TiC, boride, nitride and/or oxide from the gas phase and then heated e.g. at 900-1600‹C at 10<SP>-5</SP> Torr to 10 bar to diffuse binder metal from the hard metal into the coating layer. |
