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:
May. 10, 2005
Filed:
Feb. 28, 2002
Shigeru Yanagimoto, Kitakata, JP;
Masashi Fukuda, Kitakata, JP;
Tomoo Uchida, Kitakata, JP;
Kunio Hirano, Kitakata, JP;
Shigeru Yanagimoto, Kitakata, JP;
Masashi Fukuda, Kitakata, JP;
Tomoo Uchida, Kitakata, JP;
Kunio Hirano, Kitakata, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A material for plastic working is produced by the steps of using a mold having a mold cavity () partially defined by an end surface of a stopper () for closing a molten metal inlet (), teeming molten metal () into the mold cavity through the inlet and cooling the molten metal to thereby attain unidirectional solidification of the molten metal. Regulation of the cooling rate enables the mean grain size to be graded in the direction from the cooled face (B surface) to the opposing face (T surface) and the added components to increase in the same direction. It is possible to obtain a material for plastic working that has a selected portion exhibiting an excellent function.