Metal fasteners in fasteners often rust due to various reasons. Some fasteners may become completely locked when rust occurs, resulting in the failure of the fastener itself to operate, that is, it cannot be disassembled or continue to lock. Upper fasteners. The complete locking of the fasteners may only occur within a few seconds, so it is necessary to know and use the fasteners more correctly to prevent lock-up.
1, the reason for the lock of the fastener
The locking of fasteners generally occurs on products made of stainless steel or alloy materials. This is because these metal materials have the ability to resist rust. Once the metal surface of the fastener is damaged, oxidation will occur. The layer provides protection against corrosion, but when the fastener is locked, the pressure and heat generated by the force will damage the oxide layer, causing blockage or shearing between the metal threads, and then adhesion occurs. It is locked up.
2, the method of fasteners to avoid locking:
The locking of the fasteners can not be completely eliminated, but we can reduce the probability of locking by paying attention to various factors, such as ensuring the load capacity of the fasteners, and selecting the screws and nuts with stronger 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 common. Therefore, it is necessary to ensure the cleaning work of the fastener before use, remove the iron filings or Dirt.
After the fastener is properly and properly lubricated, the heat generated by the force of the metal part is effectively reduced, which will reduce the probability of the fastener being locked.
Locks are also less likely to be used when the fasteners are installed in the correct manner.
Concerned about surprises
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