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. 18, 2018
Filed:
Oct. 30, 2015
Applicant:
Toshiba Kikai Kabushiki Kaisha, Chiyoda-ku, Tokyo, JP;
Inventors:
Ryousuke Fujimoto, Numazu, JP;
Takumi Hareyama, Morioka, JP;
Assignee:
TOSHIBA KIKAI KABUSHIKI KAISHA, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 37/00 (2006.01); C22C 37/04 (2006.01); C21D 5/00 (2006.01); C22C 37/10 (2006.01); C22C 33/08 (2006.01);
U.S. Cl.
CPC ...
C22C 37/04 (2013.01); C21D 5/00 (2013.01); C22C 33/08 (2013.01); C22C 37/00 (2013.01); C22C 37/10 (2013.01);
Abstract
A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided. The high-strength, high-damping-capacity cast iron is obtained by a method including performing a graphite spheroidizing treatment on a molten metal, and consists of 2% to 4% of C, 1% to 5% of Si, 0.2% to 0.9% of Mn, 0.1% or less of P, 0.1% or less of S, 3% to 7% of Al, 0% to 1% of Sb, 0% to 0.5% of Sn, 0.02% to 0.10% of Mg, 01% to 0.5% of RE (Ce, La), Fe as balance, and unavoidable impurity.