Vertical die-casting method and apparatus
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
Nov 13, 1997
filing date -
Mar 19, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An interior cooling inner plunger is caused to project from an outer plunger after casting. Alternatively, during casting, while it projects from the outer plunger, the inner plunger is inserted into a frustoconical gate. Subsequently, a pressure pin is moved downward from a movable mold side to a portion near a gate portion. When a melt solidifies, a casting sleeve and a casting plunger are moved downward, and a pressure pin is further moved downward to cut apart a biscuit from a mold product. An excellent product is produced and the cycle time is shortened by a good melt pushing operation.
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