Cleverly remove rusty fasteners

Fasteners are used throughout various equipment and facilities. For the use of fasteners, our common problems are that they are rusty, difficult to unload, and cannot be screwed. This is actually very normal, maybe because the fasteners have been used for too long, or the quality of the fasteners is not too good, and when facing rusty fasteners and cannot be removed, what should I do? Provide you with five tips to facilitate the removal of rusty fasteners.

1. Vibration: Don't use a wrench to tighten the rusty screw. The six faces are angular to prevent the sliding screw from screwing the screw or twisting the wrench. At this time, you can use a wrench that trembles slightly with a hammer. Generally, rusty screws can vibrate.

2. Knock: Use your hammer to corrode the stainless steel nut, it is easy to loosen the nut. For example, the two ends of the bicycle pedal fixing bolt and nut, according to the thickness of the pedal, the metal structure, master the use of nut size. The nut between the cast iron can be forced to be slightly larger, using plastic. If you still can't do it, hit the nut in the direction of the hammer, and the nut can be easily removed. (Guide: Technical Conditions of Rivets)

3. Burning: Some screw embroidery is very badly corroded, and it still doesn't work with the above method, you can use fire. Use gas welding to oxidize the screw, the nut is grilled completely, and then burn the screw with small oil droplets. The purpose of heating the screw is to thermally expand the screw. The purpose of the dripping session is to make the screw cold shrink quickly, increase the gap between the screw and the stainless steel nut, and the oil flows into the loosened nut. But if you have any plastic components nearby be careful with this method.

4. Punch: The corrosion of stainless steel screws on the top of some equipment can not be used with a wrench or knife. The method of discharging influence is available. First use a hammer and a screwdriver to tighten the top is affected by the direction of the flat straight v-groove. Then, adjust the cone angle and the direction of rotation along the spiral. After that, you can use wire cutters to screw the screws. A straight or cross screw slide, this method may be adopted, the steel wire spiral clamping screw.

5. Welding: Remove the device and tighten the screws. The top of the broken screw is usually not used with an electric drill, because it will be a little careless for the broken wire hole. A better method is to weld with a long iron with broken wires. Determine the iron cross section by the diameter of the stainless steel fastener.

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