Doosan Infracore Co., Ltd.

Jong Kwon Chung

Sik Yang

Jae Hyoung Hwang

Ki Hwan Jung

Dong Seob Shim

Young Kyu Ju

Yeniseul Lee

The present disclosure relates to a manufacturing method of high-strength flake graphite cast iron, the high-strength flake graphite cast iron manufactured by the method, and an engine body including the cast iron, and more particularly, to flake graphite cast iron and a manufacturing method thereof, wherein the flake graphite cast iron has a uniform graphite shape and low probability of forming chill and has high tensile strength of at least 350 MPa and excellent workability and fluidity by controlling the content of manganese (Mn) and a trace of strontium (Sr), which are included in the cast iron, within a specific ratio.

High-strength flake graphite cast iron, manufacturing method thereof, and engine body for internal combustion engine including cast iron

The present disclosure relates to flake graphite cast iron having high workability and a preparation method thereof, and more particularly, to flake graphite cast iron with a uniform graphite shape, low chill formability, a high strength such as a tensile strength of 350 MPa or more, and excellent workability and fluidity by controlling each of the contents of manganese (Mn) and sulfur (S) and carbon (C) and silicon (Si) included in the cast iron and a carbon equivalent (CE) to predetermined ratios, and a preparation method thereof.

High strength flake graphite cast iron having excellent workability and preparation method thereof

Growing community of inventors

Gyeonggi-do, South Korea

Jong Kwon Chung