旋转螺纹连接件的螺纹加工与量规检测

[中文适用范围]： 本标准规定了石油和天然气工业用旋转台肩连接的以下要求：螺纹和螺纹量规的尺寸要求@测量实践和量规规格的规定以及螺纹连接检验的仪器和方法。这些连接主要用于钻柱组件。对于特殊公差要求@资格@测试@检验@和精加工，其他补充规范可由有关各方商定。本标准适用于新制造的连接件和使用后重新切割的连接件。应该认识到，重新切割连接需要接受额外的检查和测试？用户可参考 API 7G-2 以获取此类信息。本标准适用于以下优选的旋转台肩连接设计。这些可以追溯到国际支持的仪表和校准系统，可以描述为数字（NC）风格@常规（REG）风格@或全孔（FH）风格。 [外文原描述]： This standard specifies requirements on rotary shouldered connections for use in petroleum and natural gas industries, including dimensional requirements on threads and thread gauges, stipulations on gauging practice and gauge specifications, as well as instruments and methods for inspection of thread connections. These connections are intended primarily for use in drill-string components. Other supplementary specifications can be agreed between interested parties for special tolerance requirements, qualification, testing, inspection, and finishing. This standard applies both to newly manufactured connections and connections that are recut after service. It should be realized that recut connections are subject to additional inspection and testing – the user is referred to API 7G-2 for such information. This standard is applicable to the following preferred rotary shouldered connection designs. These are traceable to an internationally supported system of gauges and calibration that ca