Recovery and Processing Method of Waste Hard Alloy Material

According to this invention, the waste block or powder of hard alloy generated during application and production and the waste tungsten block, filament, powder and tungsten dioxide, may be used to make W-Co kind or W-Co-Ti kind of hard alloy or spray coating (welding) powder of hard alloy with uniformly distributed Co and tungsten carbide whose grain size is 0.6-1.0 micrometers through following steps: breaking, cleaning, calcine, reduction, carbonization, regulation and manufacture of hard alloy. Its technological process is stable.

A method of recycling waste carbide by crushing electric melting method and the selective method of cleaning the zinc melt, the composition of the milling step, which is characterized by a secondary raw material of tungsten, including the use of the process of production and the production process carbide cobalt content of various waste materials and powder blocks, scrap metal tungsten block, tungsten wire, tungsten powder and tungsten dioxide, crushing cleaning, roasting, milling, screening reduction with carbon carbide milling screening and adjustment processes in the system tungsten - tungsten carbide-cobalt composite powder or - cobalt composite powder.

waste-carbide


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