Mixing catalyst and carrier gas for curing foundry molds and cor

Details Mixing catalyst and carrier gas for curing foundry molds and cor Mixing catalyst and carrier gas for curing foundry molds and cor

1976-11-19

1978-09-05

Person, Sandra M.

Agitating

Mortar mixer type

With ingredient proportioning

164 4, 164 16, 164154, 260 38, B01J 802, B22C 912

Patent

active

041125150

ABSTRACT:
Method and apparatus for mixing foundry mold catalyst and carrier gas when the catalyst is in the liquid phase and the carrier is in the gaseous phase at standard conditions of temperature and pressure. The catalyst liquid is heated to vaporize it and the resulting catalyst gas is then mixed with the carrier gas under control of an automatic gas flow regulator which maintains the mass ratio between the catalyst gas and the carrier gas at the desired level in the gaseous mixture notwithstanding variations in the flow rate of either or both gases. The gaseous mixture is then blown through foundry molds and cores to cure the resin binder therein.

REFERENCES:
patent: 2263797 (1941-11-01), Christensen
patent: 2917465 (1959-12-01), Begley
patent: 3409579 (1968-11-01), Robins
patent: 3639654 (1972-02-01), Robins
patent: 3919162 (1975-11-01), Austin

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