公开(公告)号：US07081172B2

公开(公告)日：2006-07-25

申请号：US10683391

申请日：2003-10-14

Applicant: Yasuhiro Enya ,  Francois Coderre ,  Yoshikazu Ibayashi ,  Masaru Matukura

Inventor： Yasuhiro Enya ,  Francois Coderre ,  Yoshikazu Ibayashi ,  Masaru Matukura

IPC: C22C37/10 ,  C22C37/04 ,  C22C38/08

CPC classification number: C22C37/10 ,  C22C33/08

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.

Abstract translation: 提供球状石墨铸铁，其具有高强度和高韧性的珠光体基体。 结节状石墨铸铁基本上由重量％组成：3.0至4.6％的碳; 1.6〜2.5％的硅; 0.2〜0.6％的锰; 0.02〜0.05％的镁; 0.0004〜0.090％的锆; 锡和铜中的至少一种，使得α在0.01至0.06％的范围内，其中α表示锡的转化量，其通过锡的重量％和铜的0.1重量％的总和来定义; 铁的平衡和不可避免的外来事务。