NODULAR GRAPHITE CAST IRON FOR PISTONS, ONE-PIECE PISTON, AND MARINE ENGINE
    2.
    发明公开
    NODULAR GRAPHITE CAST IRON FOR PISTONS, ONE-PIECE PISTON, AND MARINE ENGINE 审中-公开
    用于活塞,单件式活塞和海洋发动机的普通石墨铸铁

    公开(公告)号:EP3202935A1

    公开(公告)日:2017-08-09

    申请号:EP15845945.3

    申请日:2015-09-18

    申请人: Yanmar Co., Ltd.

    摘要: A nodular graphite cast iron for pistons according to an embodiment contains, in mass%, C: 2.7 to 4.3%, Si: 2.0 to 3.5%, Mn: 0.3 to 0.8%, Mg: 0.02 to 0.10%, Cu: 0.3 to 1.0%, Cr: 0.05 to 0.90%, and Mo: 0.05 to 1.00% with the balance being composed of Fe and inevitable impurities. Then, the C content and the Si content fall within a composition range defined by a line sequentially joining respective points of point A (2.7%, 3.5%), point B (3.2%, 2.0%), point C (4.3%, 2.0%), and point D (3.8%, 3.5%) indicated by (the C content and the Si content) in a graph illustrating the relation between the C content and the Si content.

    摘要翻译: 本发明的活塞用球墨铸铁以质量%计含有C:2.7〜4.3%,Si:2.0〜3.5%,Mn:0.3〜0.8%,Mg:0.02〜0.10%,Cu:0.3〜1.0 %,Cr:0.05〜0.90%,Mo:0.05〜1.00%,余量由Fe和不可避免的杂质构成。 然后,C含量和Si含量落入由点A(2.7%,3.5%),B点(3.2%,2.0%),C点(4.3%,2.0%), (C含量和Si含量)表示的D点(3.8%,3.5%),表示C含量与Si含量的关系。