Metal founding – Process – Shaping a forming surface
Patent
1980-08-18
1982-08-10
Hampilos, Gus T.
Metal founding
Process
Shaping a forming surface
106 3827, 164 72, 164114, 164138, 427135, B22D 1310
Patent
active
043433456
ABSTRACT:
A mold facing for producing a gas-permeable, non-gassing and, in view of its small thickness and its porosity, heat-conductive cladding of a centrifugal ingot mold for copper and its alloy contains pulverulent material in a dispersing agent, particularly water, evaporating without residue. The pulverulent material has titanium dioxide (TiO.sub.2) as the main constituent or the sole constituent, preferable with an average particle sizes of about 15 .mu.m. A process for cladding a centrifugal ingot mold by using such a mold facing contemplates at first preheating the mold and subsequently applying the mold facing by spraying to the inner wall of the centrifugal ingot mold rotating around its axis in form of a suspension free of binding agents and surface active agents as a thin layer of, as far as possible, uniform thickness of preferably 0.1 to 0.3 mm and subsequently evaporating the dispersing sheet of the mold facing without leaving any residue for obtaining a porous layer.
REFERENCES:
patent: 3437131 (1969-04-01), Ornitz
patent: 4150709 (1979-04-01), Brugger
patent: 4178981 (1979-12-01), Murray
Batten, Jr. J. Reed
Hampilos Gus T.
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