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:
Dec. 15, 1987
Filed:
Jul. 18, 1986
Shigeru Akiyama, Tosu, JP;
Hidetoshi Ueno, Tosu, JP;
Koji Imagawa, Tosu, JP;
Akira Kitahara, Tosu, JP;
Sumio Nagata, Tosu, JP;
Kazuo Morimoto, Amagasaki, JP;
Tooru Nishikawa, Amagasaki, JP;
Masao Itoh, Amagasaki, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Shinko Kosen Kogyo Kabushiki Kaisha, Amagasaki, JP;
Abstract
A foamed metal which has an apparent specific gravity of from 0.2 to 0.8 and comprises an aggregate of polygonal closed cells of from 2 to 10 mm in average diameter. The foamed metal is not only light in weight, free of directionality and structurally strong but also excellent in sound-absorbing and electromagnetic shielding properties, and is useful as constructional, structural or functional material. A method for producing the foamed material comprises adding calcium as a thickening agent to molten aluminum or alloy thereof in an amount of from 0.2 to 8% by weight, followed by agitating to adjust the viscosity of the melet, then adding from 1 to 3% by weight of powdered titanium hydride as a foaming agent to the melt, and agitating the melt to effect foaming.