Process and autoclave for dewaxing mold for lost wax casting

Details Process and autoclave for dewaxing mold for lost wax casting Process and autoclave for dewaxing mold for lost wax casting

1984-04-23

1986-02-18

Hruskoci, Peter

Cleaning and liquid contact with solids

Processes

Including melting

34 37, 34216, 134 19, 134 40, 134153, 134157, 134200, B08B 300

Patent

active

045712700

ABSTRACT:
A process for dewaxing a mold for use in lost wax casting is proposed, wherein the mold is loaded on a pallet which is placed and then securely held on a carrier which is rotatably assembled in a dewaxing tank. The mold is inverted to be ready for dewaxing within the tank and then returned to the initial condition within the tank by rotating the carrier by about 180 degrees at a time.
An autoclave for use in the process comprises a carrier framework rotatably disposed within a dewaxing tank for carrying a pallet loaded with shell mold trees. The carrier framework is held in a first position for assembling the pallet and then is rotated by about 180 degrees to a second inverted position to hold the pallet securely in the inverted condition during the dewaxing operation.
A preferred embodiment of the autoclave further comprises means for securely fastening the pallet and the mold trees automatically and simultaneously with the operation of sealingly closing the entrance opening of the dewaxing tank.

REFERENCES:
patent: 1596214 (1926-08-01), O'Brien
patent: 3071178 (1963-01-01), Howeth
patent: 3744402 (1973-07-01), Piegza et al.
patent: 4018239 (1977-04-01), Caldwell et al.
patent: 4104080 (1978-08-01), Sadwith
patent: 4204872 (1980-05-01), Hayati et al.

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