The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 1990
Filed:
Aug. 09, 1989
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164 72 ; 164113 ; 164312 ;
Abstract
A die-casting method in which a lubricant is heated to a temperature higher than a temperature of mold cavity surfaces before molten metal is injected into the mold cavity. The lubricant is heated when the mold cavity is formed by bringing a movable mold into contact with a stationary mold. The heated lubricant is introduced into the mold cavity and applied on the mold cavity surfaces, and the molten metal is then injected into the mold cavity. The molten metal is allowed to solidify in the mold cavity to become a solidified article. A die-casting device for carrying out this method is also provided according to the present invention.