Metal founding – Process – Shaping a forming surface
Patent
1997-08-18
1998-12-22
Lin, Kuang Y.
Metal founding
Process
Shaping a forming surface
164349, 106 384, B22C 120
Patent
active
RE0360015
ABSTRACT:
A foundry mold member made from a plurality of sand practice bound together with a binder which is concentrated at the contact points between contiguous particles and consists essentially of gelatins having a Bloom rating less than about 175 Bloom grams. The sand particles are first coated with a sol of the gelatin, cooled to ambient temperature and conditioned to prescribed water content necessary to effect migration of the gelatin to the interparticle contact points upon heating of the coated particles in a pattern mold.
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Datte Mark Allen
Schreck Richard Michael
Siak June-Sang
Whited William Thomas
General Motors Corporation
Lin Kuang Y.
Plant Lawrence B.
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