Method for casting vitreous materials using the lost wax process

Details Method for casting vitreous materials using the lost wax process Method for casting vitreous materials using the lost wax process

1976-11-12

1978-09-19

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

65 72, 264235, 264299, 264317, 264DIG44, B29C 102

Patent

active

041155041

ABSTRACT:
A method for casting vitreous materials using the lost wax process in which a pattern of the article to be cast is formed with a substance which is vaporized at the casting temperature of the vitreous material. The pattern is embedded in a heat resistant silica compound such as sand which surrounds the pattern to form a casting mold. The sand is contained in a receptacle called a casting shell. The vitreous material is heated to a temperature at which its viscosity is between 20 and 100 poises and the article is cast.

REFERENCES:
patent: 3420644 (1969-01-01), Lirones
patent: 3520668 (1970-07-01), Keefer

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