Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1973-11-27
1976-05-04
Padgett, Benjamin R.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75213, 252514, 252518, B22F 100
Patent
active
039544591
ABSTRACT:
To make an electric contact material, a molten alloy of silver and a non-noble metal is atomized into spheroidal particles having a particle size ranging up to almost 1 mm, and the fraction of these particles having a particle size ranging between 0.2 and 1 mm is separated, a small remainder of smaller particle size being treated as a reflux. This fraction is heated in an oxidizing atmosphere to oxidize the non-noble metal internally within the particles and the latter are then mechanically broken, as by suitable milling or pulverizing, into fragments having a particle size no greater than about 0.3 mm. The fragmented particles are then compressed, as by pressure molding, extrusion, etc., and sintered to provide a sintered silver-metal oxide electric contact material.
REFERENCES:
patent: 2671953 (1954-03-01), Balke
patent: 3158473 (1964-11-01), Gatti
patent: 3317991 (1967-05-01), Haarbye
patent: 3504058 (1970-03-01), Masselol
patent: 3506437 (1970-04-01), Gwyn, Jr.
patent: 3832156 (1974-08-01), Wilson et al.
Rothkegel Bernhard
Schreiner Horst
Hunt B.
Padgett Benjamin R.
Siemens Aktiengesellschaft
LandOfFree
Method for making sintered silver-metal oxide electric contact m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making sintered silver-metal oxide electric contact m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making sintered silver-metal oxide electric contact m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-675480