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:
Nov. 09, 1999
Filed:
Mar. 22, 1996
Ryoichi Shibata, Ishibashi-machi, JP;
Tomomi Souda, Mooka, JP;
Takao Kaneuchi, Mooka, JP;
Hideya Yamane, Utsunomiya, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
The present invention relates to a die casting method in order to obtain aluminum alloy having high quality and excellent mechanical characteristics. Further, the present invention relates to a die casting method to produce such an aluminum alloy casting, wherein primary crystal of molten metal is substantially granulated in a casting sleeve so as to form a semi-molten status, and then filled under pressure into a die cavity and solidified, so that molten metal flow becomes laminar flow, thus making less air mixing, and casting can be made without oxides and solidified matter being filled into die cavity.