Hot box process for preparing foundry shapes

Details Hot box process for preparing foundry shapes Hot box process for preparing foundry shapes

1987-05-08

1988-08-30

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

106 382, 523145, B22C 122

Patent

active

047669497

ABSTRACT:
The subject invention relates to a hot box process for forming foundry shapes. The foundry shapes are formed with a mixture of an aggregate and certain aqueous basic solutions of phenolic resole resins which act as binders. The use of these binders results in foundry shapes which are cured by heating at elevated temperatures without requiring an acid-generating curing catalyst.

REFERENCES:
patent: 4381354 (1983-04-01), Kai et al.
patent: 4426467 (1984-01-01), Quist et al.
patent: 4468359 (1984-08-01), Lemon et al.
patent: 4474904 (1984-10-01), Lemon et al.
patent: 4495316 (1985-01-01), Armbruster
patent: 4644022 (1987-02-01), Iyer

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