Causes of damage to high-strength bolts

Causes of damage to high-strength bolts

There are various factors that can cause damage to threaded fasteners, but in the vast majority of cases, due to looseness:

When threaded fasteners become loose, a huge amount of kinetic energy MV2 is generated, directly affecting the fasteners and equipment, causing damage to the fasteners. Welding nail manufacturer's welding nail is a kind of fastener with high strength and rigidity. Welding nail is the abbreviation of Cheese head studies for arc stud welding. The specification of welding nail is nominal diameter Ф 10~ Ф 25mm, with a total length of 40-300 mm before welding. Welding nails have the identification mark of the manufacturer made of raised characters on the top surface of the head, and the use of welding nails is very extensive. Steel structure bolt manufacturer Steel structure bolt is a high-strength bolt and also a standard component. The fastening performance is relatively good, used in steel structures and engineering, to enhance the fastening effect. On general steel structures, the required steel structural bolts are grade 8.8 or above, as well as grade 10.9 and 12.9, all of which are high-strength steel structural bolts. Sometimes, the bolts on steel structures do not need to be electroplated, and it is OK to use the natural color. After the fastener is damaged, the equipment cannot function properly, further leading to equipment damage.

The wire is broken, the bolt is broken.

The bolt is cut and the bolt hole is broken into a circle by the fastener subjected to radial force.

At present, the most advanced and effective anti loosening method is to tighten the screws.

The Tang thread has the characteristics of left-hand and right-hand rotation. It can fit with left-hand threads and right-hand threads.

Tighten the nuts to two different couplings. The workpiece support surface is called a nut fastening nut, and the nut support surface is called a non locking nut. When using the first tightening nut preload, then lock the nut preload.

If vibration and impact occur, the fastening nut will loosen. However, since the loosening direction of the fastening nut is the tightening direction of the locking nut, the tightening of the locking nut can only prevent the loosening of the fastening nut, resulting in the inability to loosen the fastening nut.