Among fasteners, metal fasteners often rust due to various reasons. When corrosion occurs, some fasteners will be completely locked, resulting in the failure of the operation of the fastener itself, that is, it cannot be disassembled or continued to be locked. Fasteners on. The complete locking of fasteners may only occur within a few seconds, so it is necessary to know and use fasteners more correctly to prevent locking.
1. The reason for the locking of fasteners
The locking of fasteners generally occurs on products made of stainless steel or alloy materials. This is because these metal materials themselves have the ability to resist corrosion. Once the metal surface of the fastener is damaged, oxidation will occur. However, when the fastener is locked, the pressure and heat generated by the applied force will destroy the oxide layer, causing blockage or shearing between the metal threads, and then adhesion. It is locked.
2. The method of fasteners to avoid locking:
★The locking of fasteners cannot be complete, but we can reduce the probability of locking by paying attention to various factors, such as ensuring the load capacity of fasteners, choosing screws and nuts with higher tensile strength, etc.
★Whether the thread of the fastener is clean or not will also have a certain impact on whether it is locked. When the thread is rough or not clean, the lock occurs more often, so make sure to clean the fastener before use and remove iron filings or dirt.
★ After the fasteners are properly and properly lubricated, the heat generated by the metal parts due to the force will be effectively reduced, which will also reduce the probability of the fasteners being locked.
★When the fasteners use washers and are installed in the correct way, there is less lockup.
