Casting apparatus for low-melting metals having two or more coat

Details Casting apparatus for low-melting metals having two or more coat Casting apparatus for low-melting metals having two or more coat

1994-04-11

1995-09-26

Rosenbaum, Mark

Metal founding

Means to shape metallic material

Continuous or semicontinuous casting

164138, B22C 100, B22D 1104

Patent

active

054527554

ABSTRACT:
A casting apparatus for low-melting metals has a coating layer of two-layered structure which hardly reacts with low-melting metals, adheres firmly to the substrate, and protects the substrate from thermal and mechanical shocks for a long period of time. The layer in contact with the substrate contains glass powder having a melting point below 1000.degree. C. and at least one binder selected from silicates and phosphates. The layer in contact with molten metal contains 5-80 wt. % of at least one fluorine compound (as a corrosion resistant material) having a melting point of above 700.degree. C. Owing to the multiple layers, each having a specialized function, the casting apparatus has improved durability over a long period of time.

REFERENCES:
patent: 4174972 (1979-11-01), Dreuzy et al.
patent: 4911225 (1990-03-01), Leppanen
patent: 4998710 (1991-03-01), Pelton
patent: 5033721 (1991-07-01), Gnyra

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