摘要
如何实现管道连续性、安全性作业逐渐成为坡地管道施工亟待解决的难题。为此,研制了CPP900-FIW48新型内焊机,制定了“内焊机根焊+双焊炬自动焊机外焊”全自动焊接工艺。通过力学性能试验和现场工艺试验进行相关试验研究。试验结果表明:新型内焊机及其配套的全自动焊接工艺可在山区、丘陵等坡地管道上坡与下坡施工中实现连续、安全及根焊至盖面焊全工序的自动焊接;其自动对中定位、一键遥控自动焊接等功能,可提高焊炬中心基于管端定位的精度与效率,从而实现内环缝焊接全过程自动化;15°~30°坡度范围内管道环缝焊接应重点控制热输入量、焊接电压、焊接电流等,且通过焊接参数的适时调整控制熔池下坠。所得结论可为坡地管道自动焊作业提供技术指导。
To facilitate continuous and safe operations for pipeline construction on slopes,a new internal welding machine featuring the fully automatic welding technology of“internal root welding and external automatic welder with dual welding torches”was developed,and the mechanical performance and field testing was performed.The testing results show that the new internal welding machine and the matching fully automatic welding technology enable continuous,safe and full-process automatic welding from root welding to cap welding in up-and down-slope pipeline construction in mountainous areas and hills.The automatic centering and one-click remotecontrol automated welding enhance the precision and efficiency of welding torch positioning with respect to the pipe end so as to enable full-process automation of internal girth welding.For pipeline girth welding with slope gradients of 15°~30°,extra attention shall be paid to control of the hat input,welding voltage and welding current,and the molten pool falling is controlled by adjusting welding parameters in a timely fashion.The findings of this research provide technical guidance for the automatic welding of pipelines on slope.
作者
杨天冰
王长江
刘然
冯大勇
马培勇
Yang Tianbing;Wang Changjiang;Liu Ran;Feng Dayong;Ma Peiyong(China Petroleum Pipeline Engineering Co.,Ltd.;PipeChina Engineering Technology Innovation Co.,Ltd.;China Petroleum Pipeline Research Institute Co.,Ltd.)
出处
《石油机械》
北大核心
2023年第3期145-152,共8页
China Petroleum Machinery
基金
中国石油管道局工程有限公司重大科技项目“CPP900内组对根焊设备山地性能提升技术研究”(2021-28)。
关键词
坡地管道
内焊机
全自动焊接工艺
坡口形式
焊接参数
性能试验
slope pipeline
internal welding machine
fully automatic welding technology
groove geometry
welding parameter
performance testing
作者简介
第一作者:杨天冰,工程师,生于1974年,2011年毕业于北京航空航天大学软件工程专业,获硕士学位,现主要从事科研管理工作。地址:(065000)河北省廊坊市。E-mail:yangtionbing@cnpc.com.cn;通信作者:王长江,高级工程师,E-mail:wangcj10@pipechina.com.cn。
