Metal founding – Process – Shaping a forming surface
Patent
1977-01-24
1978-12-12
Husar, Francis S.
Metal founding
Process
Shaping a forming surface
164 65, 164160, 164167, 164255, 164322, B22C 1522, B22D 2716, B22D 4702
Patent
active
041291646
ABSTRACT:
In a method for reduced-pressure mould production, a plurality of mould flasks are simultaneously evacuated by evacuating means, and in which production of the moulds is carried out while moving the mould flasks sequentially through a mould shaping position, a pouring position and a mould disintegrating position. Evacuation is effected by first evacuating means during a period from the beginning of mould shaping to the beginning of mould pouring and a period after pouring, and evacuation is effected more strongly by second evacuating means during the period of pouring.
REFERENCES:
patent: 3825058 (1974-07-01), Miura et al.
patent: 3843301 (1974-10-01), Hijikota et al.
patent: 3861447 (1975-01-01), Hondo
patent: 3933194 (1976-01-01), Hijikota et al.
patent: 4028455 (1977-06-01), Ueda et al.
Hampilos Gus T.
Husar Francis S.
Mitsubishi Jukogyo Kabushiki Kaisha
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