Method and apparatus for die-casting

Details Method and apparatus for die-casting Method and apparatus for die-casting

B - Operations, Transporting

22

D

22/172, 22/67

B22D 17/04 (2006.01) B22D 17/00 (2006.01) B22D 17/20 (2006.01) B22D 17/22 (2006.01)

Patent

CA 1263215

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.

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