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一、六角螺栓的机械性能六角螺栓的机械性能如附表。二、计算拧紧扭矩的条件施加于被拧螺栓头部或螺母上的扭矩Tf等于螺纹表面的摩擦力矩与端面摩擦力矩之和,如下式所列: Tf=1/2Ff〔dp(1.15μs+tgβ)+dwμW〕式中 Ff—螺栓上产生的拧紧力(轴向力); dp—螺纹的有效径(有效径基准尺寸
First, the mechanical properties of hex bolts The mechanical properties of hex bolts, such as the schedule. Calculation of Tightening Torque The torque Tf applied to the head or nut to be screwed is equal to the sum of the friction torque on the screw thread surface and the friction torque on the face as given by the following equation: Tf = 1 / 2Ff [dp (1.15μs + tgβ ) + dwμW] Where Ff- tightening force on the bolt (axial force); dp-effective diameter of the thread (effective diameter reference size