Based on years of experience in encountering fractures, the analysis is as follows: 1. Since there is no heat treatment, it may be that the locking torque is too large. It is safe as required. It may also be caused by the customer's increased locking torque due to poor locks. 2. Hydrogen embrittlement is also possible after electroplating. Analyze with the help of instruments and grasp the hydrogen removal link 3. Material problems, if the material is too poor, there will be fractures.
During the use of the welding nut, if the assembly tightening torque is too large, the force will be uneven, and when the yield limit of the welding nut is exceeded, deformation will occur. Broken due to excessive elongation. So in life we think that the closer the better is unscientific. In addition, during the overhaul of the welding nut, it should not be installed in a wrong or disorderly manner, otherwise the positioning of the sawtooth will be inaccurate, which may cause the welding nut to break. It is also possible that the weld nut has broken due to material problems, machining defects, or processing techniques.
Based on years of experience in encountering fractures, the analysis is as follows
1. Since there is no heat treatment, it may be that the locking torque is too large. It is safe as required. It may also be caused by the customer's increased locking torque due to poor locks.
2. Hydrogen embrittlement is also possible after electroplating. With the help of instrument analysis, grasp the hydrogen removal process
3. Material problems, if the material is too poor, there will be fractures. Look at the broken surface and there are seams. Be sure to use materials from official channels
The real cause of weld nut fastener damage is looseness:
After the welding nut fasteners are loosened, huge kinetic energy is generated. This huge kinetic energy directly acts on the fasteners and equipment, resulting in damage to the fasteners. After the fasteners are damaged, the equipment cannot work in a normal state, which further leads to Equipment damage.
Fasteners subjected to axial force, the nut is destroyed, and the bolt is pulled off.
Weld nuts are cylindrical fasteners used in conjunction with rivet nuts and are widely used in many industries. And it can be seen everywhere in daily life. Although its structure is small, its function is very powerful. Improper use of the weld nut can cause breakage during use.
