Method and apparatus for the low-pressure die-casting of metals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 29, 1989
Grant Date -
N/A
app pub date -
May 27, 1988
filing date -
Jul 27, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low-pressure die casting process in which gaseous pressure is applied to molten metal in a bath (C) in three stages from three pressure applying circuits. The first circuit applies pressure to lift molten metal to the charging aperture of the die. When the presence of the metal at that die is detected by a sensor (8), a datum pressure is established and the further application of gaseous pressure to the molten metal is taken over by a second circuit. When the pressure applied to the molten metal differs from the datum pressure by a predetermined amount, an after pressure is applied to the molten metal by the third circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully