摘要
对QT400-18球墨铸铁堆焊进行工艺试验研究及评定,试验包括检测QT400-18焊接接头的抗拉强度、硬度、宏观及金相分析等。研究结果表明:该堆焊工艺可行,且重复性和稳定性好;试验结果成功应用于球墨铸铁柴油机机体的修复。
Experiment and evaluation were carried out on the technology of QT400-18 nodular cast iron build-up welding, which included tests on the tensile strength and hardness of QT400-18 welded joint, as well as macroscopic and metallographic analysis. The results show that this technology is feasible, and boast good performance on repeatability and stability. The experimental achievements have been successfully applied to the maintenance of nodular cast iron diesel engine blocks.
出处
《柴油机》
2015年第1期42-45,共4页
Diesel Engine
关键词
机体
球墨铸铁
堆焊
工艺
block
nodular cast iron
build-up welding
technology
