【摘要】 采用球墨铸铁制造G32气缸盖。从化学成分中硅与铜两元素着手,试验两元素在不同含量时对G32气缸盖组织和力学性能的影响;结果表明:要使G32气缸盖满足材质QT500-7的力学性能,同时具有良好的耐压性能,应选择硅铜含量分别为:2.50%~2.65%,0.45%~0.55%。更多还原

【Abstract】 The microstructure and mechnical properties of G32 with different Si and Cu contents were studied. The experimential results showed G32 cylinder head was made of ductile cast iron with 2.50%~2.65%(wt)Si and 0.45%~0.55%(wt)Cu contents to meet mechanical properties of QT500-7 and have good pressure-proof property.更多还原