Second, the electric submersible pump connected to the pipe thread pretightening force enough (or not pre-torque).
第二，电潜泵各管螺纹联接的预紧力不够（或预紧扭矩不够）。
By applying different pre-pressure, the speed, torque and temperature of the ultrasonic motor in low and high vacuum have been tested and compared with the normal condition.
施加不同的预压力在低、高真空环境下对超声电机的转速、转矩及温升进行测量并与常态下相比较。
The results show that stalling torque increases and no load speed decreases with the increase of the pre-load and degree of vacuum.
结果表明，随着预紧力和真空度的增加，马达的堵转力矩增加而空载转速下降；
The development of controllable certain torque pre-loading machine effectively solves the domestical problem of oil filter semi-automated assembly.
可控定扭矩旋紧机的研制有效解决了滤清器半自动化装配的国产化问题。
Servo motor controls capping torque, pre-set torque from touch-screen. When capping reaches set torque, capping head stops, suitable for tighter capping requirement.
旋盖的扭力由伺服电机控制，在触摸屏上设定扭矩。当旋盖达到设定的扭矩时，旋盖头即停止旋转，适合对旋紧度要求高的产品。
The paper analyzed the bolt pre-stress affected to the mine roadway support effect and the relevant relationship between the bolt pre-tightening torque and the pre-tension.
分析了锚杆预应力对巷道支护效果的影响，锚杆预紧扭矩与预紧力对应关系。
The paper analyzed the bolt pre-stress affected to the mine roadway support effect and the relevant relationship between the bolt pre-tightening torque and the pre-tension.
分析了锚杆预应力对巷道支护效果的影响，锚杆预紧扭矩与预紧力对应关系。
应用推荐