電動扭矩扳手就是以電源或電池為動力的扳手，是一種擰緊螺栓的工具。主要應用于鋼結構安裝，或者可以理解為專門安裝鋼結構高強螺栓的。在使用電動扭矩扳手過程中，出現(xiàn)摩擦是普遍都存在的現(xiàn)象。

Electric torque wrench is a wrench powered by power or battery, which is a tool for tightening bolts. It is mainly used for the installation of steel structure, or it can be understood that it is specially used for the installation of high-strength bolts of steel structure. In the process of using electric torque wrench, friction is a common phenomenon.

一般摩擦會出現(xiàn)好壞兩方面。好的方面就是它可以使零件保持結合在一起。而壞的方面就是在扭緊時，它可能會帶來錯誤的結果，大家在使用過程中，也要把摩擦因素考慮進去。并且如果大家在擰緊螺紋上面有損傷或者障礙的螺母或者螺栓時，也一定要注意通過損傷的部位需要附加的扭矩有多大，然后再把這個附加的扭矩加到的扭矩值上面去。

Generally, there will be good and bad friction. The good thing is that it keeps the parts together. The bad aspect is that when tightening, it may bring wrong results. We should also take friction factors into account in the use process. And if you tighten the nut or bolt with damage or obstacle on the thread, you must also pay attention to the additional torque through the damaged part, and then add the additional torque to the recommended torque value.

我們在使用電動扭矩扳手的時候，用力一定要柔和均勻。大家不要用短促、沖動的力來扳動，因為如果猛拉的話，它會產生一個沖量，那么在停止用力的瞬間，就會出現(xiàn)螺釘或者螺栓扭過頭了的現(xiàn)象。所以用力一定要均勻。并且相信使用過電動扳手的消費者的都知道，污染物也會妨礙到精確的扭矩值。如果電動扳手的零件或者螺孔上面有污染物的話，那么就不可能有正確的扭矩值。所以大家在日常的使用過程中，也要注意這個問題。

When we use the electric torque wrench, the force must be gentle and even. Don't use short, impulsive force to pull, because if you pull, it will produce an impulse, then at the moment when you stop the force, there will be the phenomenon that the screw or bolt is over twisted. So the force must be even. And it is believed that consumers who have used electric spanners know that pollutants can also hinder accurate torque values. If there are pollutants on the parts or screw holes of the electric wrench, it is impossible to have the correct torque value. So we should also pay attention to this problem in our daily use.