Projection molten impeller for concave section used in apparatus
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United States of America Patent
Stats
-
Nov 9, 1993
Issued Date -
N/A
app pub date -
Jul 17, 1991
filing date -
Mar 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An impeller as used in a projecting construction apparatus for a concave section of a molten-metal-discharging hole is supported on a rotating shaft for redirecting flow of impinging projection material. The impeller includes a plurality of vanes which are attached to the rotating shaft with a specified twisting angle relative to the rotating shaft. A material supplying pipe is directed upon the plurality of vanes, so that, upon impingement of the projection material upon the plurality of vanes, the projection material is projected outwardly and in a direction nearly opposite to the predetermined direction of impingement of the projection material supplied through the material-supplying pipe.
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