扭剪型高強(qiáng)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(qiáng)螺栓，采用電動(dòng)力矩扳手來進(jìn)行安裝。只有當(dāng)力矩達(dá)到要求后，高強(qiáng)螺栓的梅花頭才會(huì)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(qiáng)螺栓是否起到作用，而扭剪型高強(qiáng)螺栓都是一次性也是因?yàn)檫@個(gè)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(qiáng)度螺栓的擰緊。 其目的是中斷扭剪型高強(qiáng)度螺栓。 工作時(shí)，將扳手的頭部與螺栓的頭部對齊，然后拉動(dòng)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(dòng)扳機(jī)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(qiáng)度螺栓。 扭剪螺栓分為六個(gè)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(qiáng)度螺栓的初始擰緊可以使用沖擊電動(dòng)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(qiáng)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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