Method and apparatus for molding a light-alloy wheel

Details Method and apparatus for molding a light-alloy wheel Method and apparatus for molding a light-alloy wheel

1997-01-08

1998-09-22

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164132, 164137, 164340, 164342, 249 56, B22C 928, B22D 2900, B22D 3304

Patent

active

058100679

ABSTRACT:
A light-alloy wheel is cast using an apparatus wherein cores are moved by a cotter via a sliding mechanism. A sliding portion is isolated from molten metal so that locking at the sliding portion is unlikely to occur. The sliding mechanism can be of a small size and is disposed in an interior of a mold top segment with a relatively large gap between the cotter and the mold top segment. The gap assures a good heat dissipation from the mold top segment. In a molding method conducted using the apparatus, the cores may be positioned at a retracted position and extended before the molten metal has solidified to thereby remove blow holes in a cast wheel.

REFERENCES:
patent: 5143141 (1992-09-01), Frulla
patent: 5311918 (1994-05-01), Scott
patent: 5427171 (1995-06-01), Prieto
patent: 5538329 (1996-07-01), Stach
patent: 5562147 (1996-10-01), Bortoloni
patent: 5626182 (1997-05-01), Bortoloni

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