摘要
主要研究了调质球墨铸铁活塞环的材料、铸造工艺及热处理工艺等,确定了化学成分、球化孕育、800 rpm的固定转速、2 mm^3 mm涂料层厚度、冷却方式、930℃×(8~10)h油冷+630℃×4 h空冷的热处理等关键工艺参数,从而开发出一种值得推广应用的优质活塞环,具有较好的经济效益和市场价值。
The quenched and tempered ductile iron piston ring was studied in this paper. The key process parameters such as the chemical composition,casting process and heat treatment process were determined as： fixed rotational speed 800 rpm,coating layer thickness 2~3 mm,heat treatment of oil cooling 930 ℃ ×（8~10）h and air cooling 630 ℃ × 4 h,thus a high quality piston ring was developed which is worthy of popularization and application and has good economic benefit and market value.
出处
《铸造设备与工艺》
2017年第1期44-46,57,共4页
Foundry Equipment & Technology
关键词
球墨铸铁
活塞环
热处理
ductile iron
piston ring
heat treatment
