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Explain to reduce the chance of fastener locking
People who often deal with hardware know that fasteners often appear locked during use. The locking of fasteners will cause the operation of the fasteners to lose efficacy, that is, they cannot be disassembled or continue to be locked and fastened. Pieces. What is the cause of the fastener locking? How can we avoid the state of fastener locking? China Standard Parts Network will explain the relevant knowledge to reduce the probability of fastener locking.
1. Reasons 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 prevent corrosion. Once the metal surface of the fastener is damaged, it will An oxide layer will appear to provide protection and prevent the intensification of rust, but when the fastener is locked, the pressure and heat generated by the force will destroy the oxide layer, causing blockage or shearing between the metal threads, and then adhesion. Phenomenon, that is, lockup.
2. How to avoid locking of fasteners: (Guide: Standard content of several aspects of fastener products)
The locking of fasteners cannot 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 choosing screws and nuts with more tensile strength Wait.
Whether the threads of the fasteners are clean also has a certain impact on whether the fasteners are locked. When the threads are rough or not clean, the locking occurs more often. Therefore, ensure that the fasteners are cleaned and removed before use. Iron filings or dirt.
After the fastener is properly lubricated, the heat generated by the metal part due to the force will be effectively reduced, which will also reduce the probability of fastener locking.
When fasteners use washers and are installed in the correct way, locking is less likely to occur.
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