ROBERT Y ABRAMSON
Plumbers in Stonington, CT
License number
New Jersey 36BI00498200
Issued Date
Jan 11, 1974
Category
Master Plumbers
Type
Master Plumber
Address
Address
Stonington, CT
Professional information
Process And Apparatus For Melting And Casting Of Metals In A Mold
US Patent:
5819837, Oct 13, 1998
Filed:
Mar 3, 1997
Appl. No.:
8/810022
Inventors:
Franz Hugo - Aschaffenburg, DE
Jakob Huber - Aschaffenburg, DE
Robert Y. Abramson - Stonington CT
John Sheehan - Poway CA
Jakob Huber - Aschaffenburg, DE
Robert Y. Abramson - Stonington CT
John Sheehan - Poway CA
Assignee:
ALD Vacuum Technologies GmbH - Erlensee
International Classification:
B22D 2715, B22D 3504
US Classification:
164 61
Abstract:
Metal is melted in an induction-heated crucible (13) on which a mold (10) with a downward-facing filling opening (26) is located in the melting position. After melting the metal, the crucible (13) and the mold (10) are jointly rotated about a horizontal axis (A--A) into a tilting position in which the molten material flows from the crucible (13) into the mold (10). In order to melt reactive metals, melting is done in a crucible (13) that is surrounded by a vacuum, this crucible being surrounded by an induction coil (15) outside of the vacuum. The mold (10) is located in a vacuum-sealed casting chamber (6) which is evacuated together with the crucible (13) prior to melting and casting is carried out by a joint tilting of the crucible (13), casting chamber (6) and mold (10) by at least 180 degrees while the vacuum is maintained.