Die casting arrangement

Details Die casting arrangement Die casting arrangement

1986-12-29

1988-08-09

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164113, B22D 1710, B22C 300

Patent

active

047621630

ABSTRACT:
A die-casting arrangement which prevents a lubricant from becoming mixed into a die cast article which might cause it to bulge when later heated. The lubricating agent is sprayed over a high-temperature portion of a sprue interconnecting a mold cavity and an injection sleeve in order to partly carbonize the lubricant. The carbonized lubricating agent even if mixed into a die cast article will not expand even when the article is heated thereby preventing bulging of the article.

REFERENCES:
patent: 2120333 (1938-06-01), Kubo et al.
patent: 3920099 (1975-11-01), Pondelicek et al.
patent: 4562875 (1986-01-01), Ogoshi et al.
Patent Abstracts of Japan, vol. 9, No. 187 (M-401) [1910], 3rd Aug. 1985; & JP-A-60 45 261 (Toyoda Jido Shokki Seisakusho K.K. 28-03-1985.
Patent Abstracts of Japan, vol. 8, No. 274 (M-345) [1711], 14th Dec. 1984; JP-A 59 144 556 (Touyou Kikai Knzoku K.K.) 18-08-1984.

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