One Stop Solution Manufacturer for all kind of Stamping Products and CNC lathed products.
Classification of anti-loose methods
There are three basic types of anti-loosening methods for threaded fastener connections:
a. Non-detachable anti-loose
This is an anti-loosening method that uses welding, bonding or punching riveting to change the detachable threaded connection into a non-detachable threaded connection. It is a very reliable traditional anti-loosening method. The disadvantage is that threaded fasteners cannot be reused. And the operation is troublesome. It is often used in some important occasions that require anti-loose and high reliability without disassembly.
b. Anti-loosening of mechanical fixing parts
Using mechanical fixing parts to fix and pin between the threaded part and the connected part or between the threaded part and the threaded part to prevent loosening. The advantage of this method is that it is anti-loosing and reliable, and its anti-loosing reliability generally depends on the static strength or fatigue strength of the mechanical fixing parts (or the fasteners themselves, such as slotted nuts). Its disadvantage is that it increases the weight of the fastening connection, is troublesome to manufacture and install, and cannot be installed by motor, so the cost is relatively high. Because of its high reliability, it is still widely used in some important parts of mechanical products and aerospace products. (Guide: Stainless Steel Screw Inspection Method)
c. Increase friction to prevent loosening
Using the method of increasing the friction between the threads or the end surface of the bolt (screw) and the nut, or increasing the friction of both at the same time, to achieve the purpose of anti-loosening. This anti-loose method is less reliable than the above-mentioned type a or type b methods, but its biggest advantage is that it is not limited by the use of space, can be repeatedly assembled and disassembled many times, and can be assembled by maneuvering, and some of them Fasteners (such as nylon ring lock nuts, all-metal lock nuts), its anti-loosening reliability has reached a very high level. Therefore, this anti-loosening method is the most widely used in the machinery manufacturing sector and the aerospace field.
More related stamping hardware industry news: