Method of shaping a mould under a reduced pressure

Details Method of shaping a mould under a reduced pressure Method of shaping a mould under a reduced pressure

1975-09-26

1977-07-19

Shore, Ronald J.

Metal founding

Process

Shaping a forming surface

164 23, 164 33, 164 41, 164160, 164253, 164379, 164380, B22C 116

Patent

active

040362760

ABSTRACT:
A method of producing a reduced-pressure-shaped mould in which at least in the region of a sprue runner of the mould to be formed and in regions where a shield material for the mould material is likely to be destroyed during introduction of the molten material to be moulded, the mould material partially or entirely comprises moulding sand mixed with substantially 0.5% to substantially 3.0% by weight of binder.

REFERENCES:
patent: RE24655 (1959-06-01), Sylvester
patent: 2789331 (1957-04-01), Dietert
patent: 3581802 (1971-06-01), Krzyzanowski
patent: 3789907 (1974-02-01), Nakata et al.
patent: 3952793 (1976-04-01), Hiyikata et al.
patent: 3961967 (1976-06-01), Brooks

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