摘要
推导了石油油管外螺纹小端大径和内螺纹大端小径的计算公式，并给出了常用石油油管螺纹这两个尺寸的计算结果，旨在对ＧＢ９２５３．３一８８“石油油管螺纹”提出建设性意见，以方便对石油油管螺纹的加工。
Abstract This article gives the calculational methods of the thread,s big diameter in the tubing's end and small di-arneter in the coupling's end. It is also an !important compleiiemtarity to the standard of GB9253. 388 andgives convenience to the manufacture of threads on tubing and couplings for petroleum industry.
出处
《石油矿场机械》
1999年第3期34-36,共3页
Oil Field Equipment
