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:
Jul. 25, 2006
Filed:
Oct. 14, 2003
Yasuhiro Enya, Kariya, JP;
Francois Coderre, Kariya, JP;
Yoshikazu Ibayashi, Shimonikawa-gun, JP;
Masaru Matukura, Shimonikawa-gun, JP;
Yasuhiro Enya, Kariya, JP;
Francois Coderre, Kariya, JP;
Yoshikazu Ibayashi, Shimonikawa-gun, JP;
Masaru Matukura, Shimonikawa-gun, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A nodular graphite cast iron is provided, having a pearlite matrix, with high strength and high toughness. The nodular graphite cast iron consists essentially of, by weight %: from 3.0 to 4.6% of carbon; from 1.6 to 2.5% of silicon; from 0.2 to 0.6% of manganese; from 0.02 to 0.05% of magnesium; from 0.0004 to 0.090% of zirconium; at least one of tin and copper such that α ranges from 0.01 to 0.06% where α indicates a tin conversion amount defined by a summation of a weight % of the tin and 0.1× a weight % of the copper; and the balance of iron and inevitable foreign matters.