Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1987-03-02
1989-01-24
Godici, Nicholas P.
Metal founding
Means to shape metallic material
Pressure shaping means
164312, 425289, 425562, B22D 1712
Patent
active
047995343
ABSTRACT:
A vertical die casting machine of a vertically clamping type provided with a hydraulic piston-cylinder to actuate movable parting plates disposed between an injection sleeve and a runner hole in a stationary mold for constricting a melt passage, the parting plates defining an axial through-hole in a clamped state. The parting plates prevent a semi-solidified part of the melt "shell" formed in the sleeve before an injection operation from intruding into a die cavity with the liquid melt. In an embodiment with a narrow runner hole having a diameter smaller than that of the sleeve, the parting plates move together to shear a cold melt runner from the cold melt bisket formed in the sleeve so that a cast product may be upwardly removed from the stationary mold. In another embodiment with an enlarged runner hole having a diameter not less than that of the sleeve, the parting plates move away from each other to allow an integral piece including the bisket formed in the sleeve, the runner formed in the runner hole, and the cast product, to be removed upward through the stationary mold and the enlarged runner hole.
REFERENCES:
patent: 3969055 (1976-07-01), Buckethal
patent: 4077760 (1978-03-01), Sauer
patent: 4088178 (1978-05-01), Ueno et al.
patent: 4284124 (1981-08-01), Komatsu et al.
patent: 4287935 (1981-09-01), Ueno et al.
Dannoura Sadayuki
Uchida Masashi
Ueno Toyoaki
Batten, Jr. J. Reed
Godici Nicholas P.
Ube Industries Ltd.
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