Production of sponge metal from sponge metal fines

Details Production of sponge metal from sponge metal fines Production of sponge metal from sponge metal fines

1989-11-17

1990-09-04

Rosenberg, Peter D.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419356, 419 54, C22B 502

Patent

active

049541668

ABSTRACT:
The pyrophoric fines inevitably resulting from the crushing of zirconium and/or hafnium or other exotic metal fines, such as titanium and uranium, are brought into contact with molten magnesium or a molten mixture of magnesium and magnesium chloride in the usual vacuum distillation furnace so that their surfaces are wetted by the molten material, after which furnace temperature is dropped to solidify the molten material about the fines. Furnace temperature is then raised to that required to vaporize the magnesium and magnesium chloride, whereupon sintering of the fines takes place over a period of time.

REFERENCES:
patent: 3396777 (1968-08-01), Reding
patent: 3634066 (1972-01-01), Matthews

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