摘要
针对长输在役管道带磁,在维抢修焊接中产生磁偏吹,严重影响焊接工艺实施和焊接质量的问题,研制了长输管道端口磁滞缓冲器。该产品通过利用励磁线圈克服管道焊接部位铁磁性材料剩磁的矫顽力,使管道焊接部位的磁性达到内磁平衡状态,在焊接过程中使磁偏吹的影响降到最低,满足焊接工艺要求,确保焊接质量。产品较现有消磁产品具有重量轻、能耗低、控制方式先进、运行可靠、消磁迅速、消磁效果好等优点,经现场应用,证实运行稳定,消磁效果好。
Magnetic bias happens in maintenance and welding of the long-distance pipelines in service,seriously affecting welding process execution and welding quality.The port magnetic hysteresis buffer for long-distance pipelines has been developed for settlement of those problems.As compared to the existing degaussing products,this product is light in weight,low in energy consumption,advanced in control mode,reliable in operational mode,rapid for degaussing and good at degaussing.Field application indicates that this product is in stable operation with good degaussing effects.
出处
《石油科技论坛》
2016年第S1期210-211,257-258,共4页
PETROLEUM SCIENCE AND TECHNOLOGY FORUM
关键词
长输管道
焊接磁偏吹
磁滞缓冲
脉冲消磁
long-distance
welding
magnetic bias
magnetic hysteresis buffer
pulse degaussing
