摘要
大直径管道、套筒的螺纹卸扣困难一直是工程中不易解决的问题。首先从螺纹副的几何参数、配合状态及材料的选择等方面分析了螺纹副卸扣阻力大的原因,然后从加工精度和使用工况方面,分析了因不均匀承载及锈蚀等因素造成的螺纹副破坏,继而造成卸扣困难的影响机理,为解决大直径螺纹的卸扣提供了有益的借鉴。
The difficulty in disassembling the screw thread of large-diametered conduits and sleeves is a tough problem during construction.At first,the causes of heavy resistance in disassembling the screw thread were analyzed in terms of geometrical parameters,fit status and selected material,then the destroy of screw pair due to uneven loading and rusting were analyzed in terms of machining precision and employment status,thus the affecting mechanism of difficulty in disassembling the screw thread was clear.The study offers beneficial references for the disassembly of large-diametered screw threads.
出处
《矿山机械》
北大核心
2010年第22期46-48,共3页
Mining & Processing Equipment
关键词
大直径螺纹
螺纹副
螺纹卸扣
影响机理
large-diametered screw thread
screw thread pair
disassembly of screw thread
affecting mechanism
