Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1997-08-22
1999-09-21
Ryan, Patrick
Metal founding
Means to shape metallic material
Pressure shaping means
164134, 164113, B22D 1704, B22D 1700
Patent
active
059541164
ABSTRACT:
A shot sleeve for a die casting machine includes an elongated hollow body for receiving and guiding a shot plunger. This body defines an elongated chamber of predetermined cross-section having a front opening leading to a sprue runner of a die. The cross-section enlarges over part of its length towards the front opening. The plunger's front surface can include a conical surface which tapers away from a perimetrical scraping edge of the plunger, the conical surface having an axial end surface of smaller cross-section than the perimetrical edge. The arrangement allows undesirable material such as scrape peripheral portions of a slug of semi-solid metal to be trapped in a biscuit which remains in the shot sleeve after formation of a part.
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patent: 4667729 (1987-05-01), Zecman
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patent: 5575325 (1996-11-01), Sugiura et al.
patent: 5630463 (1997-05-01), Shimmell
patent: 5730201 (1998-03-01), Rollin et al.
Buhler AG
Dey Anjan
Ryan Patrick
LandOfFree
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