工程油缸缸筒变形控制技术研究  

Study on Deformation Control Technology of Cylinder Tube of Engineering Cylinder

作　　者：廉政 吕彭民[1] 米永胜[2] LIAN Zheng;LYU Pengmin;MI Yongsheng(Key Laboratory for Road Construction Technology and Equipment,Ministry of Education,Chang＇an University,Xi＇an 710064,China;School of Rail Transportation,Nanjing Communications Institute of Technology,Nanjing 211188,China)

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,陕西西安710064 [2]南京交通职业技术学院轨道交通学院,江苏南京211188

出　　处：《热加工工艺》2018年第13期256-259,共4页Hot Working Technology

基　　金：国家科技支撑计划项目(2015BAF07B02)

摘　　要：工程油缸附件焊接容易引起刮滚后圆度超差,造成缸筒变形。从调整刮滚参数、不焊接附件、先焊缸底后焊附件、增加时效和精修缸筒孔口倒角五种工艺方案逐项论证,详细分析了因缸筒变形造成圆度超差的原因并制定相关控制措施。结果表明：增加时效和精修缸筒孔口倒角都可以有效控制缸筒附件焊接带来的热应力变形。但在保证圆度≤0.08 mm的情况下,与增加时效相比,采取精修缸筒孔口倒角措施既能减少时效、抛丸、底漆等工序,又可节约成本,提高生产效率。The welding of engineering cylinder attachment is easy to cause roundness deviation after scraping and rolling, which leads to cylinder deformation. Five process schemes which were scraping and rolling parameter adjustment, non-welding of attachment, welding of attachment after welding of the bottom of the cylinder, increasing aging and finish cutting of cylinder orifice chamfer were demonstrated one by one. The reason of roundness deviation was analyzed in detail and relevant control measures were formulated. The results show that increasing aging and finish cutting of cylinder orifice chamfer can both effectively control thermal stress distortion caused by welding of cylinder attachment. But when the roundness ≤0.08 mm is guaranteed, compared with increase of aging, taking measures of finish cutting of cylinder orifice chamfer can not only reduce the process of aging, blasting and priming, etc, but also save cost and improve production efficiency,

关 键 词：附件焊接 圆度超差 缸筒变形 控制措施 缸筒孔口倒角 

分 类 号：TG404[金属学及工艺—焊接]