含铌球铁活塞环的研究  

Investigation on the Piston Rings of Ductile Iron Containing Niobium

作　　者：李国安[1] 

机构地区：[1]山东省科学院新材料研究所

出　　处：《铸造》1991年第1期16-21,共6页Foundry

摘　　要：铌球铁活塞环比目前广泛使用的铬钼铜铸铁活塞环耐磨性提高一倍以上,热稳定性提高近10%,无断环现象,很适应内燃机发展的需要.Increases in wear resistance and thermal stability for the piston rings of ductile iron containing niobium are respectively 2 times and 100% and no piston rings broken, compared with the CrMoCu cast iron piston rings used widely at present, thus it is suitable for the needs of development for internal-combustion engine.

关 键 词：铌 球墨铸铁 活塞环 

分 类 号：TG255[金属学及工艺—铸造]