Metal fasteners in fasteners often cause corrosion due to various reasons. Some fasteners will completely lock up when rust occurs, causing the fasteners themselves to lose their effectiveness, that is, they cannot be disassembled or continue to lock. Fasteners. The complete locking of the fastener may only occur within a few seconds, so it is necessary to understand and use the fastener more correctly in order to prevent the lock from happening.
1, the reasons for locking the fastener
Locking of fasteners generally occurs on products made of stainless steel or alloy material. This is because these metal materials have the ability to prevent corrosion. Once the metal surface of the fastener is damaged, oxidation occurs. The layers provide protection against rusting, but when the fasteners are locked, the pressure and heat generated by the application of force can damage the oxide layer, causing blocking or shearing between the metal threads, which in turn causes sticking. It is locked.
2, fasteners to avoid locking method:
★ The locking of fasteners can not be completely eliminated, but we can reduce the chance of lock-up by paying attention to various factors, such as ensuring the load-bearing capacity of fasteners, and selecting screws and nuts with more tensile strength.
★ Whether the thread of the fastener is clean or not has a certain influence on whether the lock is locked. When the thread is rough or not clean, the lock is more often appeared. Therefore, before the use, ensure the cleaning work of the fastener and remove the iron filings. Or dirt.
★ After the fasteners are properly and properly lubricated, the heat generated by the metal parts will be effectively reduced. This will also reduce the chance of fasteners locking up.
★ When fasteners use washers and are installed in the correct way, they are less likely to lock up.