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1. (WO2017155331) ALLOY CAST IRON HAVING IMPROVED WEAR RESISTANCE, AND PISTON RING COMPRISING SAME

Pub. No.:    WO/2017/155331    International Application No.:    PCT/KR2017/002573
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: F16J 9/26
F16J 9/12
Applicants: SAMYOUNG MACHINERY CO., LTD.
삼영기계(주)
Inventors: HAN, Geum Tai
한금태
Title: ALLOY CAST IRON HAVING IMPROVED WEAR RESISTANCE, AND PISTON RING COMPRISING SAME
Abstract:
The present invention relates to an alloy cast iron, and a piston ring including the same, the alloy cast iron comprising: a pearlite base; and a graphitized structure precipitated in the pearlite base and a steadite-type process structure, wherein the steadite-type process structure comprises at least one element selected from boron (B) and vanadium (V), at least one element selected from chromium (Cr) and molybdenum (Mo), and copper (Cu).