Process for applying a coating to a centrifugal casting mold

Details Process for applying a coating to a centrifugal casting mold Process for applying a coating to a centrifugal casting mold

1976-08-03

1979-04-24

Spruill, Robert Louis

Metal founding

Process

Shaping liquid metal against a forming surface

164 33, 164114, 164138, B22D 1310

Patent

active

041507096

ABSTRACT:
A process for applying a coating to a centrifugal casting mold for casting copper or alloys thereof in which prior to introducing the molten metal into the mold, an aqueous suspension of powdery material is introduced into the mold and applied on the internal surface thereof in the form of a thin layer. The constituent components of the suspension are zirconium oxide (ZrO.sub.2) and an inorganic binder material, preferably non-sintered alumina (Al.sub.2 O.sub.3), so that a heat-conductive and gas-permeable layer is formed on the surface of the mold.

REFERENCES:
patent: 2169384 (1939-08-01), Hall
patent: 2399606 (1946-04-01), Schuh et al.
patent: 3437131 (1969-04-01), Ornitz
patent: 3445250 (1969-05-01), Preece

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