The results show that the fracture may be due to improper heat treatment which leads to over hardness of the thread part and the joint of thread part and tooth part.
结果表明，断裂是由于热处理工艺不当、管子钳活动钳口齿部、螺纹部以及螺纹和齿部的过渡连接部分硬度过高引起；
This article proves that rolling operation can largely enhance fatigue strength through the research on the cold rolling operation of thread root of the drilling tool joint.
通过石油井下钻具接头螺纹冷滚压工艺的研究可以证明冷滚压可大大地提高接头的疲劳强度。
Radial distortion of the flexible component in the stop valve can be adjusted so as to ensure the joint depth between flexible screw thread trepanning circular groove and screw thread on the screw.
截止阀的柔性元件的径向变形值可以调节，保证柔性螺纹套的环槽与螺杆上的螺纹的接合深度。
This paper discusses the mechanical, hardware, software configurations and principles of CAT system for joint internal thread in details.
详细介绍了油管接箍内螺纹计算机辅助测量系统的机械、软硬件结构与原理。
That the thread endures high alternate stress is the first cause of failure of thread joint.
螺纹部位承受高的交变应力，是导致螺纹联接螺纹失效的主要原因。
The workmanship and operation flow of the punching straight thread joint is introduced, including the process in a factory.
介绍了镦粗直螺纹接头的工艺和流程以及工厂化加工过程。
Based on the statistics, 86%of tubing failure occurs in the place of thread joint, the failures of thread joint have two aspects, seal failure and slippage failure.
据统计，油管失效86%发生在螺纹联接处，而螺纹联接失效表现在两个方面：密封失效和滑脱失效。
There exists a spiral clearance space in the API round thread casing joint which is effected by the thread tolerance ranges.
API套管圆螺纹自身存在牙间间隙，并形成螺旋状空间间隙带。
Aerospace fitting joint assembly, radial sealing. Internal thread bosses. ISO metric thread profile and tolerances. Dimensions.
航空和航天。经向密封接头。阴螺纹剖面和iso米制螺纹公差。尺寸。
This paper introduce the many kinds of thread joint pre-tightening up force control method and against loose measure, elaborates the solution thread joint quality method.
文章介绍了多种螺纹联接的预紧力控制方法和防松措施，从多方面针对性的阐述了解决螺纹联接质量的方法。
The reasons caused seal and slippage failure are complicated, the most important factor was the thread gluing reduced the intensity and the sealing property of the thread joint.
造成密封和滑脱失效的原因较为复杂，最重要的因素是螺纹粘扣降低了螺纹联接的强度和密封性能。
Not just an added reinforcing ring, this unique pre-compression design compensates for expansion forces generated from normal tapered pipe thread joint make-up.
不仅仅增加了加固环，这种独特的预压缩结构能够抵消常规锥形管道螺纹连接结构所会产生的膨胀力。
To overcome the shortcomings of the shear pin type joint and left-hand thread type joint, a sliding sleeve subsurface safety joint is developed.
为了克服剪钉式和反扣式两种安全接头的不足，研制出一种滑套式井下安全接头。
The swinging rotating joint consists of spherical body, thread joint sleeve, locking screw nut, large copper washer and two spherical rings.
本发明摆动旋转接头由球型接头体，螺纹接头套，锁紧螺帽，大铜垫和两个球面转环构成。
The utility model relates to a tube fittings joint that is capable of replacing the traditional screw thread or welding or screw thread blocking connection.
本实用新型所涉及的管件接头，可以取代常用的螺纹或焊接或螺纹卡套式连接。
The Floormen apply proper pipe dope into the thread box of the pipe joint.
钻工用合适的丝扣油涂抹接头母扣。
The utility model relates to a thread tube bicycle frame made of carbon fibers combined with metal, which is composed of a plurality of supporting rods, an engaging head, and a two-way joint.
一种碳纤维与金属结合螺纹管式脚踏车架，车架是由数根支杆、衔接头及二通接头构成。
The pipe joint comprises a joint pipe and a press cover detachably connected with the joint pipe through screw thread, wherein, a clamp ring base is arranged on the head section of the joint pipe;
管接头，该管接头包括接 头管和压盖，压盖和接头管通过螺纹可拆卸式连接，接头管的端头部设置有卡环座；
The pipe joint comprises a joint pipe and a press cover detachably connected with the joint pipe through screw thread, wherein, a clamp ring base is arranged on the head section of the joint pipe;
管接头，该管接头包括接 头管和压盖，压盖和接头管通过螺纹可拆卸式连接，接头管的端头部设置有卡环座；
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