摘要
分析了油管、套管的接箍镗孔直径在不同标准中的差异,明确了加工检验的依据。研究了套管外径极限偏差、椭圆度对螺纹加工带来的影响,指出套管内倒角必须保证在管端360°圆周上完整。探讨了使用量规检验紧密距疑点,给出了紧密距检验的推荐公式。指出传统螺纹量规紧密距测量已有逐渐被螺纹中径测量所取代的趋势。分析了扭矩—位置上扣后进行J值检验的合理性。
Analyzed the differences of diameter of coupling recess of tubing and coupling between standards, Clarified the criterion of threading and thread inspection. Researched the impact of outside diameter tolerances and ovality of casing on threading, pointed out inner chamfer at the end of the pipe must extend a full 360 degrees around the face of the pipe. Discuss the knotty problems of standoff inspection by gauge, given the recommended formula for standoff inspection. Pointed out the traditional thread gauge standoff measurement has gradually been replaced by the pitch diameter measurement. Analyzed the reasonableness of J value inspection after torque-location power-tight made up.
出处
《工具技术》
2013年第3期51-54,共4页
Tool Engineering
关键词
螺纹加工
镗孔直径
管端加工
紧密距检验
J值检验
threading
diameter of coupling recess
pipe end finish
standoff inspection
J value inspection
