Process for preparing cores and molds

Details Process for preparing cores and molds Process for preparing cores and molds

1983-07-11

1984-05-01

Lin, Kuang Y.

Metal founding

Process

Shaping a forming surface

106 383, 106 389, B22C 118

Patent

active

044455658

ABSTRACT:
A combination binder and hardener therefor for a foundry aggregate wherein a linear metal polyphosphate or ammonium polyphosphate is used as the binder, the hardener is a mixture of phosphoric acid and a source of polyvalent metal cations.

REFERENCES:
patent: 3923525 (1975-12-01), Toeniskoetter et al.
patent: 4070195 (1978-01-01), Toeniskoetter et al.
patent: 4078599 (1978-03-01), Makiguchi et al.
patent: 4127157 (1978-11-01), Gardikes et al.
patent: 4357165 (1982-11-01), Helferich et al.

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