Aimed at preventing plastic screw thread from of easy to be damaged when tightening the join the starting part of screw thread is manufactured to be arc shape so as to increase intensity the manufacture method of this injection mold screw thread is stated .

针对防止塑料螺纹在 紧固联接时易损坏的特点，将 螺纹起头加工成弧形，以加大强度，叙述了此注射模螺纹的加工方法。

Nowadays the commonly used method of tightening screw thread is torque control method which causes decentralization of axial pre-tightening force and decreases the reliability of the joint .

目前最常用的 螺纹 拧紧方法是扭矩控制法，该方法容易导致螺纹副轴向预紧力分散，联接可靠性不高。

Fixation tightening force of the second sacral enter pedicle screw and strain distribution of the sacrum

骶2椎弓根 钉内进 钉固定 拧紧力与骶骨的应变分布规律

Ultrasonic Velocity and Attenuation of Tightening Screw in Nuclear Power Plant

核电 紧固 螺栓的超声速度和衰减

Strictly observe specified tightening torque for screw .

请严格遵守指定的 螺钉 拧紧力矩。

The tightening quality of screw connection structure is affected directly by the Controlling Method of the Pre - tightening Force .

螺纹联接件预紧力控制方法直接决定联接副 拧紧质量。

A greater tightening torque must be applied for the new micro-self-locking screw .

必须对新的微型自锁 螺钉应用更大的 拧紧力矩。

After alignment make second tightening to the screw bolts of crossing .

调线完成后对辙叉螺栓进行二次 拧紧。

Study of Special-purpose Torsion sensor Used to measure The moment in Tightening a Screw

螺丝 端子 拧紧力矩专用扭力传感器的研制

A set of special-purpose high precision sensors is necessary in measuring the moment of tightening a screw .

在 螺丝 端子 拧紧力矩测量仪的研制过程中，需研制一套专用高精度传感器。

Before tightening the screw in the upper left corner verify the laser reflections are centered on the viewing area .

在 旋紧 稍微靠左上方的 螺丝前，请确定雷射光反射点会在观察区的中心。

NSK-I type of controller of the tightening up a screw machine is a new type of the torque controller . It has achieved continuous adjustment to the torque of the controlled motor .

NSK-Ⅰ型拧 丝机控制器作为一种新型的力矩控制器，实现了对被控电动机力矩的连续调节。