Anti counterfeiting inquiry telephone:

0517-88219151

Add:A17, West Side of Industrial Avenue, Xucheng Industrial Concentration Zone, Xuyi County, Jiangsu Province

Tel:0517-88219151

NEWS

Current location: Home > > NEWS

NEWS

Common sense of high-strength bolts
Added:2021-06-28     Views:    

High-strength bolts are high-strength bolts, which belong to a standard part. Under normal circumstances, high-strength bolts can bear greater load than ordinary bolts of the same specification.

According to the force state, it is divided into friction type and pressure type:

In fact, there is a difference in design calculation methods. Friction-type high-strength bolts use sliding between plate layers as the ultimate load-bearing capacity; pressure-bearing high-strength bolts use sliding between plate layers as the normal service limit state, and connection failure as the load-bearing capacity Limit state. Friction-type high-strength bolts cannot fully exploit the potential of bolts. In practical applications, for very important structures or structures subject to dynamic loads, especially when the load causes reverse stress, friction-type high-strength bolts should be used. At this time, the unutilized bolt potential can be used as a safety reserve. In other places, pressure-bearing high-strength bolts should be used to reduce the cost.

According to the construction process, it is divided into torsion shear type high-strength bolts and large hexagonal high-strength bolts.

Large hexagonal high-strength bolts belong to the high-strength grade of ordinary screws, while torsion shear high-strength bolts are improved types of large hexagonal high-strength bolts for better construction.

The construction of high-strength bolts must be first tightened and then finally tightened. For the first tightening of high-strength bolts, an impact type electric wrench or torque adjustable electric wrench must be used; and the final tightening of high-strength bolts has strict requirements, and the final tightening of torsion shear type high-strength bolts must use torsion shears. Type electric wrench, torque type electric wrench must be used for final tightening torque type high-strength bolts.


 
Previous:Hexagon bolts Hexagon nuts Commonly used fastener standards Knowledge
Next:No Data...

Copyright  ©  2021-   XuYi YongShun Hardware Electric Powr Co.,LTD  All Rights Reserved. 网站地图

Add:A17, West Side of Industrial Avenue, Xucheng Industrial Concentration Zone, Xuyi County, Jiangsu Province   Contact:黄经理   Tel:0517-88219151   Phone:15295716936   QQ:1317582499