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:
Apr. 10, 2007
Filed:
Jul. 27, 2005
Yahuhiro Nakao, Sayama, JP;
Hiroto Shoji, Sayama, JP;
Kunitoshi Sugaya, Sayama, JP;
Takashi Kato, Sayama, JP;
Takaharu Echigo, Sayama, JP;
Satoshi Matsuura, Sayama, JP;
Yahuhiro Nakao, Sayama, JP;
Hiroto Shoji, Sayama, JP;
Kunitoshi Sugaya, Sayama, JP;
Takashi Kato, Sayama, JP;
Takaharu Echigo, Sayama, JP;
Satoshi Matsuura, Sayama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An aluminum casting process using a casting mold in which after the cavity () is filled with an inert gas, magnesium is introduced into the cavity to have a magnesium layer () deposited on the cavity wall. Then, nitrogen gas is introduced into the cavity to form magnesium nitride () on the surface of the magnesium layer after the cavity wall is heated to a specific temperature. Then, molten aluminum is supplied to have an aluminum casting molded, while the surface of the molten aluminum () is reduced with magnesium nitride. This makes it possible to form magnesium nitride within a short time and decrease the amount of nitrogen gas as required.