Method and apparatus for molding a light-alloy wheel
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Jan 8, 1997
filing date -
Jan 12, 1996
priority date (Note) -
Expired
status (Latency Note)
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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.
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