Light metal part activation for casting with another light metal

Details Light metal part activation for casting with another light metal Light metal part activation for casting with another light metal

1997-08-27

2000-06-13

Jones, Deborah

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

428612, 428654, 428608, 428609, 123668, 164111, B21C 100

Patent

active

060747633

ABSTRACT:
A cylinder-liner blank which preferably consists of a hypereutectic aluminum/silicon alloy and is cast into a crankcase. A special surface treatment achieves better material bonding of the liner in the crankcase. The blank has a roughness of 30 to 60 .mu.m on its outside, in the form of pyramid-like or lancet-like protruding material scabs or material accumulations. To obtain this roughness, the surface is blasted with particles which are broken so as to have sharp edges and consist of a brittle hard material, preferably high-grade corundum, with an average grain size of about 70 .mu.m. A fine fraction is formed and is continuously separated off. The average grain size is maintained by adding new particles.

REFERENCES:
patent: 4023613 (1977-05-01), Uebayasi et al.
patent: 4154900 (1979-05-01), Kalu et al.
patent: 5333668 (1994-08-01), Jorstad et al.
patent: 5537969 (1996-07-01), Hata et al.
patent: 5820938 (1998-10-01), Pank et al.
patent: 5891273 (1999-04-01), Ruckert et al.

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