Stress analysis on thread hole in woven composite materials;
燃料电池复合材料结构螺纹孔联接的应力分析
FEM analysis and design of the magnetizer on external thread testing of drill pipe;
钻杆外螺纹检测中磁化器的有限元分析与设计
The Design of the Special Installation of Thread Machining;
特殊螺纹加工装置的设计
Calculation and analysis on failure of J55 tubing string screw thread;
J55不加厚油管螺纹滑脱失效计算分析
Analysis and prevention on screw thread failure of oil pipe;
油管螺纹失效分析与预防
A comprehensive analysis on the failure of the screw threads connecting the oil tubes;
油管联接螺纹失效综合分析
Flaw Recognition of Screw Based on Alternating Magnetic Flux Leakage Testing;
交变漏磁检测在螺纹缺陷检测中的应用
The Study on the Machine Vision Method of Screw Measurement;
螺纹检测的机器视觉方法研究
The Study of Screw Parameter Measurement Based on Computer Vision;
基于计算机视觉的螺纹参数检测算法研究
Seal analysis of API8 button round threads;
API8牙圆螺纹接头密封性分析
Simple method calculating the big pore size and the small pore size of cylinder tube threads in drawing;
在绘图中圆柱管螺纹大径小径简便计算法
In view of the problems of the standard SY/T-5383-1999 "Downhole Motors" concerning the threads, suggestions for its modification are proposed based on the on-site situation to make the threads' flexural strength achieve a more balanced connection and to make the standard more scientific and reasonable.
针对SY/T5383-199《9螺杆钻具》标准中有关螺杆钻具连接螺纹存在的一些问题,联系现场工作实际,提出了修改建议,以使螺杆钻具连接螺纹的弯曲强度比更加接近平衡连接,整个标准更加科学合理。
Based on an analysis on the cooling simulating experienment to the brittleness of 20MnSi thread steel, the paper determines that Granular B is not the major factor of the brittle snap of steel.
针对20MnSi螺纹钢的脆断性进行轧后模拟冷却试验及分析。
The application of grooveless rolling in the splitting rolling of small size thread steel has been described in this paper.
介绍了无槽轧制在小规格螺纹钢切分生产中的应用。