Sintering or reaction sintering process for ceramic or...

Details Sintering or reaction sintering process for ceramic or... Sintering or reaction sintering process for ceramic or...

B - Operations, Transporting

28

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25/141, 25/92

B28B 11/00 (2006.01) C04B 35/64 (2006.01) C04B 35/65 (2006.01) H05H 1/44 (2006.01)

Patent

CA 1245040

ABSTRACT OF THE DISCLOSURE A process for sintering or reaction sintering ceramic or refractory materials with hot plasma gases. The hot plasma gases are produced by injecting a combined primary plasma arc with a secondary gas stream directly into a reaction furnace. The secondary gas stream is tangentially injected into the primary plasma arc gas stream to mix the gases for the required sintering temperature at the highest energy efficiency. The plasma torches are positioned in the furnace ports so that the plasma gas flow is perpendicular to the furnace process gas flow. This process is inexpensive and efficient and results in a superior quality sintered product. It may be adapted to continuous or periodic kilns to achieve a high furnace productivity.

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