Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1980-05-28
1983-01-18
Hunt, Brooks H.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
419 33, 419 68, 241 5, 241 18, B22F 100
Patent
active
043690785
ABSTRACT:
This invention relates to a process and an apparatus for converting lump-size material, particularly scrap, of titanium metal or its alloys, preferably of low oxygen content, into powder-form material, which is useable for forming in a powder-metallurgical way pressings and workpieces, wherein the lump-size material is highly embrittled by charging with hydrogen, the embrittled material is size-reduced by means of size-reducing machines, particularly impeller breakers, impact mills, hammer mills, impact hammer mills or hammer breakers, the size-reduced brittle material preferably having a particle size of less than about 10 mm and more particularly of less than about 6 mm is further size-reduced by means of at least one jet stream by impinging on a baffle plate or an anvil or on the particles of at least one other jet stream for the purpose of conversion into the powder-form material, and the powder-form material is converted into the ductile state by heating, preferably at temperatures above 450.degree. C. and more particularly at temperatures above 700.degree. C., preferably under reduced pressure and more particularly under a reduced pressure of the order of 10.sup.-1 Torr or lower.
REFERENCES:
patent: 3469976 (1969-09-01), Iler
patent: 3622313 (1971-11-01), Havel
patent: 3649242 (1972-03-01), Arias
patent: 3744993 (1973-07-01), Matt et al.
Perry et al, Chemical Engineer's Handbook, 1975, pp. 43 and 44.
Hunt Brooks H.
NYBY Uddeholm AB
LandOfFree
Process and an apparatus for converting lump-size material of ti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and an apparatus for converting lump-size material of ti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and an apparatus for converting lump-size material of ti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-136407