理化检验：物理分册2012，Vol.48Issue(6)：351-354,4.
大功率柴油机气缸盖的残余应力
Residual Stress of Cylinder Head of High-power Diesel Engine
潘斯宁 1陈清锋 1俸文斌1
作者信息
- 1. 广西玉柴机器股份有限公司,玉林537005
- 折叠
摘要
Abstract
Aiming to solve the leakage problem of cylinder head,the effect of thermal annealing process,machine manufacturing process and testing process on residual stress of the cylinder head was analyzed by using blind-hole method.The results show that the thermal annealing process,which was with higher holding temperature,longer holding time,lower cooling rate and lower out-of-furnace temperature,was able to keep lower residual stress of the rough cylinder head.The residual stress of the cylinder head was increased after machine manufacturing process.Through the optimization of thermal annealing process,residual stress of bottom surface of the cylinder head was effectively controlled.No crack was found after 1 000 h bench testing,indicating that the optimization of thermal annealing process can greatly reduce the residual stress of bottom surface of the cylinder head and effectively solve the leakage problem of the cylinder head.关键词
气缸盖/残余应力/盲孔法/热时效退火工艺Key words
cylinder head/residual stress/blind-hole method/thermal annealing process分类
矿业与冶金引用本文复制引用
潘斯宁,陈清锋,俸文斌..大功率柴油机气缸盖的残余应力[J].理化检验：物理分册,2012,48(6):351-354,4.
