Introduction and Application of High Strength Bolts
Introduction and Application of High Strength Bolts 1. Introduction High-strength bolts are high-strength bolts and are a standard part. In general, high-strength bolts can withstand loads larger than normal bolts of the same specification. The shape and connection structure of the high-strength bolt are basically the same as those of the ordinary bolt. The main difference between the two is that the ordinary bolt connection relies on the pressure and shear of the shaft to transmit the shear force, and the pre-tension of the bolt is small when the nut is tightened. The effect of the high-strength bolt connection is to intentionally apply a large pre-tension to the bolt, so that a pressing force is generated between the contact surfaces of the connected parts, so that there is a large friction force perpendicular to the screw direction, relying on this Friction to transmit the connection shear. The pre-tension of the high-strength bolt is realized by tightening the nut. The or...