Bush for directing a stream of molten metal into a mold
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United States of America Patent
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May 10, 1994
Grant Date -
N/A
app pub date -
Feb 17, 1993
filing date -
Nov 27, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Molten metal is either poured or injected into the cavity of a permanent mold by way of a bush which comprises a metal sleeve, anchored to the mold itself, a first tubular element of ceramic material lodged internally of the sleeve, and a second tubular element, also ceramic, coaxial with the first. The stream of metal passes from a feeder into the inlet end of the bush, through the first and then the second ceramic element, and enters the cavity ultimately from an outlet end consisting of a metal annular element connected in a precise and effectively fluid-tight fit with the corresponding end of the second tubular element.
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