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. 13, 2011
Filed:
Apr. 17, 2008
Kiyoshi Shibata, Tokyo, JP;
Toshirou Ichihara, Tokyo, JP;
Keizou Tanoue, Tokyo, JP;
Kouzou Miyamoto, Tokyo, JP;
Masamitsu Yamashita, Tokyo, JP;
Kiyoshi Shibata, Tokyo, JP;
Toshirou Ichihara, Tokyo, JP;
Keizou Tanoue, Tokyo, JP;
Kouzou Miyamoto, Tokyo, JP;
Masamitsu Yamashita, Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
The object of the present invention is to provide a casting method capable of simultaneously attaining the shortening of cycle time and the improvement in casting quality. The pressure allowing the molten metal level to go up to the positions of from Pto Pis applied to the molten metal within a molten metal reservoir. Then, the pressure of Pis maintained for a predetermined time. During this time, the molten metal which comes into contact with an upper dieis cooled earlier than the molten metal being in contact with another die. Through this cooling the molten metal shrinks. However, since the pressure of Pis maintained, the molten metal is supplied from the lower side to a shrunk portion, so as not to cause shrinkage cavity or underfill.