Research on Welding Repair Process for Large-scale Cast Steel Parts of Marine Diesel Engine
Marine cast steel parts generally have features such as large cross-section dimensions and complex shapes,hard to repair once damaged.This paper analyzes the cracks and causes of weld cracks commonly found in the welding of large steel castings,takes the repair of diesel cylinders as an example,and analyzes the common welding repair methods for steel castings.The welding repair through the cylinder shows that under the strict control of the welding process,the heterogeneous cold welding repair process is practically applicable to the on-site repair.And cracks may occur in the nickel-based welds after the diesel engine actually operates.The welding repair process should be strictly controlled and appropriate measures should be taken to eliminate the welding residual stress.
welding repair process large-scale cast steel residual stress
Zhao Zhiqiang Guo Haijian
Binzhou Polytechnic,Binzhou,Shandong,China,256600 Qilu Traffic Development Group co.,Ltd.Binzhou Branch,Binzhou,Shandong,China,256600
国际会议
长春
英文
1-4
2018-07-07（万方平台首次上网日期，不代表论文的发表时间）