Metal founding – Process – Shaping a forming surface
Patent
1989-05-31
1990-07-10
Seidel, Richard K.
Metal founding
Process
Shaping a forming surface
164 34, B22C 904
Patent
active
049400720
ABSTRACT:
Pattern material, such as wax, is removed from an investment casting mold by vapor phase-condensation heating with a fluorochemical boiling at a temperature above the melting point of the pattern material.
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Tetrahydran; 1963; vol. 19; pp. 1893 & 1899; "Polycyclic Fluoroaromatic Compounds III"; Harrison et al.
Hahn Terrence S.
Kilhefner, III Paul T.
Pellman Mark A.
Air Products and Chemicals Inc.
Chase Geoffrey L.
Marsh William F.
Seidel Richard K.
Simmons James C.
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