Five steps to eliminate rusty and locked fasteners

Nowadays, fasteners are used for fastening in machinery, equipment, vehicles and railways. That is to say, fasteners are indispensable in many fields of application. Symptoms of rusting and locking of firmware? This is also a common problem in our daily life, but many people don’t know how to deal with it flexibly. Here, China Standard Parts Network shares with you how to eliminate the rust and lock of fasteners. Five steps.

1. Vibration: For those rusty and locked screw stud stainless steel fasteners, we can use a hammer to hit the wrench with appropriate strength to make the fastener vibrate, so that the lock can be locked. The screw was easily unscrewed.

2. Knock: Use the edge of the square top hammer to knock the rusty and locked stainless steel studs to loosen the rusty fasteners. The strength of the percussion can be determined according to the specific situation of the nut installation position. For example, the nuts on the bolts on both sides of the bicycle pedal can be reasonably controlled according to the metal structure and metal thickness of the pedal. The intensity of. If this does not solve the problem, we can use a hammer to beat the nut in a counterclockwise direction, so that the fastener can be easily removed. (Guide: Knowledge of Fasteners: Six Points Should Be Paid Attention To When Maintaining Cylinder Head Welding Nails)

3. Burning: This method is suitable for severe rusting and locking. If the above magic weapon cannot solve the problem, we can use the flame of gas welding to burn the rusted nut. After the burning is completed After that, drip lubricating oil on the threads of the red-hot fasteners so that the rusty and locked fasteners can be easily removed. (The principle of this method is the principle of thermal expansion and contraction. It should be noted that some plastics and other devices that are easily melted by heat are prohibited from using this magic weapon.)

Four. Chong: We can use this method for fasteners that are corroded and deformed on the top of the screw due to serious rust. Just hit the top of the screw with a hammer and a screwdriver in the vertical direction, the purpose is to form a v-shaped groove, and then impact the fastener in the direction of screwing out until it is loose, and finally we can use The pliers disassembled it easily. (This method is also more suitable when there is a slippery hole in a flat or cross screw).

5. Welding: This magic weapon is suitable for use when the screw is broken during disassembly due to severe rust. In view of this situation, we can use electric welding to weld an iron block of appropriate length on the unscrewed screw, and then combine the above magic weapons to reasonably disassemble it. The cross-sectional size of the welded iron block can be determined according to the diameter of the stainless steel screw.

Warm reminder: When the phenomenon of rusting and locking occurs, you must use the above five methods to remove the fasteners scientifically and reasonably, otherwise the hexagonal corners of the screws will be slipped, the screws will be broken, and the wrench will be broken. It was screwed and so on.

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