Title:
ピストン用球状黒鉛鋳鉄、一体型ピストン及び舶用エンジン
Document Type and Number:
Japanese Patent JP6381388
Kind Code:
B2
Abstract:
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.
Inventors:
Cheap food Takuya
Masanori Oka
Kotani Tomokatsu
Risa Sato
Masanori Oka
Kotani Tomokatsu
Risa Sato
Application Number:
JP2014199271A
Publication Date:
August 29, 2018
Filing Date:
September 29, 2014
Export Citation:
Assignee:
Yanmar Co., Ltd.
International Classes:
C22C37/04; F02F3/00; F16J1/01
Domestic Patent References:
| JP2000045011A | ||||
| JP3104841A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office