Vacuum mixing of powders

1. Laboratory investigation and industrial trials have shown that the mixing of powders of different densities in the preparation of MFC for the refractory carbide constituents of hard alloys can be markedly intensified by performing it in a vacuum, The optimum processing conditions for vacuum mixing have been determined. 2. On the basis of the test results obtained, a high-capacity vacuum mixer has been designed, constructed, and put into operation.