扭剪型高強螺栓，為什么擰掉梅花頭？
Why screw off the plum blossom head of torsional shear high-strength bolt?
扭剪型高強螺栓，采用電動力矩扳手來進行安裝。只有當(dāng)力矩達(dá)到要求后，高強螺栓的梅花頭才會被擰掉，這樣可以保證所使用的螺栓達(dá)到的預(yù)緊力從而保證性能。
Torsional shear type high-strength bolts are installed by electric torque wrench. Only when the torque meets the requirements, the plum blossom head of the high-strength bolt will be screwed off, so as to ensure the pre tightening force of the bolt used and ensure the performance.
所以在工程中可以通過檢查梅花頭是否還在還判斷高強螺栓是否起到作用，而扭剪型高強螺栓都是一次性也是因為這個原因。
Therefore, in the project, it can be judged whether the high-strength bolts play a role by checking whether the plum blossom head is still in use. This is also the reason why the torsional shear high-strength bolts are disposable.
扭剪扳手主要用于扭剪型高強度螺栓的擰緊。 其目的是中斷扭剪型高強度螺栓。 工作時，將扳手的頭部與螺栓的頭部對齊，然后拉動開關(guān)以開始工作。 幾秒鐘后，擰緊螺栓頭，然后拉出扳手并拉動扳機以彈出螺栓頭，這意味著工作結(jié)束。
Torsional shear wrench is mainly used for tightening torsional shear high-strength bolts. The purpose is to interrupt the torsional shear type high-strength bolt. When working, align the head of the wrench with the head of the bolt, and then pull the switch to start working. After a few seconds, tighten the bolt head, then pull out the wrench and pull the trigger to eject the bolt head, which means that the work is over.
扭剪扳手主要用于緊固鋼結(jié)構(gòu)工程中的扭剪型高強度螺栓。 扭剪螺栓分為六個標(biāo)準(zhǔn)螺栓M16-20-22-24-27-30。扭剪扳手的應(yīng)用：扭剪式高強度螺栓的初始擰緊可以使用沖擊電動扳手或固定扭矩扳手，而擰緊則使用扭剪扳手，因此扭剪扳手專門用于扭剪的擰緊型高強度螺栓。
Torsional shear wrench is mainly used to fasten torsional shear high-strength bolts in steel structure engineering. Torsional shear bolts are divided into six national standard bolts m16-20-22-24-27-30. Application of torsional shear wrench: impact electric wrench or fixed torque wrench can be used for initial tightening of torsional shear high-strength bolts, while torsional shear wrench is used for tightening. Therefore, torsional shear wrench is specially used for tightening high-strength bolts.
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