功能：初緊扭剪型高強(qiáng)螺栓、初緊大六角高強(qiáng)螺栓、終緊大六角高強(qiáng)螺栓
Function: initial tightening torsional shear high-strength bolt, initial tightening large hexagon high-strength bolt, final tightening large hexagon high-strength bolt
應(yīng)用：高強(qiáng)螺栓連接是鋼結(jié)構(gòu)連接的主要連接形式之一，具有受力性能好、連接強(qiáng)度高、耐疲勞、抗震性能好、安裝快速等優(yōu)點(diǎn)，被廣泛利用。
Application: high strength bolt connection is one of the main connection forms of steel structure connection. It has the advantages of good mechanical performance, high connection strength, fatigue resistance, good seismic performance, fast installation and so on.
越來越多的鋼結(jié)構(gòu)安裝都需要大六角高強(qiáng)螺栓，終緊緊固大六角高強(qiáng)螺栓必須用定扭矩電動(dòng)扳手。
More and more steel structures need large hexagon high-strength bolts for installation. Constant torque electric wrench must be used for final tightening of large hexagon high-strength bolts.
10.9級(jí)大六角高強(qiáng)度螺栓必須先初緊，后終緊。初緊可以選擇手動(dòng)扳手、沖擊扳手、定扭矩扳手，而終緊必須選擇使用定扭矩電動(dòng)扳手。
Grade 10.9 large hexagon high-strength bolts must be tightened initially and then finally. Manual wrench, impact wrench and constant torque wrench can be selected for initial tightening, while constant torque electric wrench must be selected for final tightening.
初緊扭矩值是大扭矩值的50%-60%都行，而終緊扭矩值必須要嚴(yán)格精確，所以必須使用可以設(shè)定扭矩值的扭矩扳手。
The initial tightening torque value is 50% - 60% of the large torque value, while the final tightening torque value must be strict and accurate, so a torque wrench that can set the torque value must be used.
定扭矩電動(dòng)扳手是鋼結(jié)構(gòu)安裝高強(qiáng)螺栓施工專用電動(dòng)扳手，專門緊固大六角高強(qiáng)螺栓。
Constant torque electric wrench is a special electric wrench for steel structure installation and high-strength bolt construction, which is specially used to fasten large hexagon high-strength bolts.
產(chǎn)品廣泛應(yīng)用于電力建設(shè)、高層建筑、橋梁建設(shè)、化工、廠房、冶金、鐵路施工等鋼結(jié)構(gòu)安裝工程。
Products are widely used in power construction, high-rise buildings, bridge construction, chemical industry, plant, metallurgy, railway construction and other steel structure installation projects.
