Finally, we will introduce the most widely used anti-loose method: thread deformation. Simply put, a certain part of the thread of the bolt/nut is controlled and deformed. Then, when it is installed, it is forced to recover by the mounting torque. It relies on the elastic deformation of the metal to prevent loosening. There are many types in this way, but the ultimate goal is Let the thread deform. This method has the following advantages: 1. The anti-loose performance is reliable, especially for some complicated working conditions, such as high temperature, vibration, etc.; 2. detachable, reusable performance, at the very least, it can ensure a good anti-loosening effect after repeated disassembly for 15 times;
However, the following disadvantages also exist: 1. High cost; 2. High processing technology and stability, that is, the anti-loose torque must be controllable.
For now, there are countless ways to prevent loosening, and more ways will be added in the future. The main key point is to choose according to the actual situation.