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. 08, 1998
Filed:
Dec. 16, 1996
Takeshi Sugawara, Saitama, JP;
Nobuhiro Saito, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a thixocasting process, a casting material is subjected to a heating treatment to prepare a semi-molten casting material having solid and liquid phases coexisting therein, and then, the semi-molten casting material is poured into a cavity under a pressure. A through-hole for applying a constricting effect to the material is provided in a flow path for the semi-molten casting material leading to the cavity in a casting mold. A material deforming pressure P.sub.1 immediately before the semi-molten casting material flows into the through-hole is used as a parameter. For example, the material deforming pressure P.sub.1 is equal to or lower than 6.7 MPa, it is determined that the material is satisfactorily filled in the cavity.