Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Patent
1975-08-27
1977-07-12
Lanham, C.W.
Metal working
Method of mechanical manufacture
Combined manufacture including applying or shaping of fluent...
295273, 164 80, 164132, 164 72, 164 58, 164 59, 164 97, 428450, B22D 11126
Patent
active
040344649
ABSTRACT:
A method of making aluminum castings having a self-fused high silicon content in the interior matrix near and at the surface. A sand core is coated with a tacky, low-ash, low-volatile adhesive along a predetermined zone. Silicon dust particles are deposited on said adhesive in bonded relation. Molten aluminum is cast into a mold cavity containing the coated core. After mold stripping, the silicon particles are exposed as metallurgically bonded to the aluminum but along an ultra-thin depth. At least some of the exposed silicon particles are machined to expose a planar facet and thereby increase the projected exposure of the silicon particles along the machined plane. The resulting product has a reduced shrinkage characteristic (typical of aluminum alloys having a high proportional precipitated silicon).
REFERENCES:
patent: 1561287 (1925-11-01), Stern
patent: 3091549 (1963-05-01), Kanter
patent: 3259948 (1966-07-01), Feagin
patent: 3911994 (1975-10-01), Truman
patent: 3927450 (1975-12-01), Sommer et al.
Ford Motor Company
Lanham C.W.
Malleck Joseph W.
Rising V.
Zerschling Keith L.
LandOfFree
Method of aluminum cylinder head valve seat coating transplant 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 of aluminum cylinder head valve seat coating transplant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of aluminum cylinder head valve seat coating transplant will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-480040