摘要
介绍了API Spec 5B第16版和15版的螺纹加工和测量部分在圆螺纹牙形高度公差、牙形高度标准块V形槽牙底削平、圆螺纹套管最后一牙位置的差异;分析了API Spec 5B第16版新增加的检验项目牙顶高、螺纹顶径、椭圆度等内容;指出了API Spec5B第16版的技术错误、编辑错误和一些不足,并给出了修改意见;讨论了标准使用者如何应对新标准变化对螺纹加工和测量、量具校准的影响。
The differences of threading and gauging on the tolerance of the round thread height, V-groove root radius/flat of thread height groove check blocks, the last perfect thread location on external threads between API Spec 5B 15 th edition and 16 th edition are introduced. The new added inspection items of the addendum, thread crest diameter, ovality are analyzed. The technical errors, editorial errors and some imperfections of the API Spec 5B 16 th edition are pointed out, and the modified suggestions are given. How to response the changes on the threading, inspection, gages calibration of thread for the standard users is discussed.
作者
艾裕丰
冯娜
田冲
白小亮
李光峰
AI Yufeng;FENG Na;TIAN Chong;BAI Xiaoliang;LI Guangfeng(CNPC Tubular Goods Research Institute,Xi＇an,Shaanxi 710077,China;Lanpec Technologies Limited,Lanzhou,Gansu 730070,China)
出处
《石油管材与仪器》
2018年第4期60-63,78,共5页
Petroleum Tubular Goods & Instruments
基金
中国石油天然气集团公司基础研究和战略储备技术研究基金项目(编号:2017D-5008)
关键词
螺纹加工
测量
螺纹顶径
牙顶高
校准
threading
gauging
thread crest diameter
addendum
calibration
