Static molds – Including coating or adherent layer – Parting layer
Patent
1993-11-22
1996-04-30
Aftergut, Karen
Static molds
Including coating or adherent layer
Parting layer
249 62, 249135, 249144, 249174, 264 30, 264 35, 264 36, 264317, 264338, 266281, B28B 734, B28B 736, F27D 116
Patent
active
055117627
ABSTRACT:
A method of manufacturing an open top, walled member for containing a molten metal, including the steps of forming an inner wall of a mold with a metal sheet and an inner lining covering the sheet, wherein the inner wall defines an inside surface of the walled member and transferring a casting compound between an outer wall of the mold and the inner lining of the inner wall to form the walled member. The metal sheet and inner lining are then removed to allow one to apply heat to dry the casting compound. In the case where the metal sheet includes a plurality of openings, one may also retain the inner wall during the heating step. The heat to dry the casting compound is applied to the inner lining to a sufficient temperature to melt the inner lining and uncover said openings of the metal sheet. The metal sheet is removed when the casting compound is dried. Another aspect of the present invention is a mold for forming an open top, walled member for containing a molten metal having an inner wall including an inner lining and a metal sheet and an outer wall, wherein the inner wall and the outer wall are spaced relative to each other to define a space so that the open top, walled member is formed therebetween.
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Connors, Jr. Charles W.
Irwin James S.
Aftergut Karen
Magneco/Metrel, Inc.
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