Process for preparing sand cores and molds

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

1982-01-25

1984-11-27

Lin, Kuang Y.

Metal founding

Process

Shaping a forming surface

106 385R, B22C 100, B22C 116

Patent

active

044846169

ABSTRACT:
An improved process for preparing foundry cores and molds using a foundry aggregate and a binder therefor wherein the aggregate is mixed with an aqueous suspension of cereal flour and then with a core oil, the improvement comprising mixing the aggregate with phosphoric acid or sulfuric acid before mixing with the aqueous suspension of the cereal flour.

REFERENCES:
patent: 2875073 (1959-02-01), Gogek
patent: 2884412 (1959-04-01), Neukom
patent: 2977236 (1961-03-01), Neukom
patent: 3146113 (1964-08-01), Middleton
patent: 3227564 (1966-01-01), Standen
patent: 3316106 (1967-04-01), Montague et al.
Anon., Technical Bulletin 2-A, Delta Oil Products Corporation.
Houser, K. E., Foundry, Sep. 1970, Progress in Coremaking.

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