Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1991-09-19
1992-12-15
Lechert, Jr., Stephen J.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
419 10, C22C 2900
Patent
active
051713594
ABSTRACT:
A clean refractory metal SWARF particle product is made from refractory metal SWARF. The SWARF particles are produced with coolant at a temperature of less than 650.degree. C. to prevent formation of refractory metal oxides and nitrides. The SWARF particles are comminuted to reduce the particle size of theh SWARF slivers and to liberate residual coolant. The comminuted SWARF slivers are washed with a displacement wash to remove the bulk of the coolant and subject to a counter-current wash to remove substantially all of the coolant components to produce clean SWARF particles. The clean SWARF particles can be pressed into briquettes and sintered at elevated pressures or mixed with an alkali metal refractory metal halide salt, pressed at elevated pressures into SWARF/salt briquettes and dried. The briquettes are non-pyrophoric.
REFERENCES:
patent: 3753690 (1973-08-01), Emley et al.
patent: 4940572 (1990-07-01), Laundon et al.
LandOfFree
Refractory metal SWARF composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refractory metal SWARF composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refractory metal SWARF composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2090072