What if fastener screws and nuts are rusty

2023-03-14 14:28

In our life, screws and nuts are a kind of structural reinforcement of a standard part, but also in daily life indispensable industrial production needs, as long as the existence of industrial production on the earth, the effect of screws will never fade. Everyone in the process of using screws may encounter screws can not be taken out of the problem, but do not worry, then take you together to see what method can easily take off the screws.

Method 1: In the use of screws and nuts, if the corrosion is not very serious, and it is a very large screw and nut, we can use the method of knocking to loosen the screw and nut. Rusted screws look very hard, but it is a lot of rust used for fixing, sometimes knock this trick will have the desired effect, can be directly small energy knock, if really can not open the situation to increase the appropriate force, so many knocks, with the wrench to twist twist, if loose, can be removed, not only can keep the screw as a whole, but also speed is quite fast .

Soda water contains carbonic acid, which can react with the compounds in rust. In the process of chemical reaction, rust gradually disappeared or became soft. It is logical that screws and nuts will not rust each other dead. A few minutes later, if the rust is very serious, it also needs response time. After unscrewing, remember to wash away the soda with water or replace the new screw, otherwise it will be easier to re-corrode and rust.

1. First, eliminate the silt on the surface of the broken screws and nuts and blunderbusse the center of the cross section to death with the center blunderbusse. Then, use the electric hand drill to mount a twist drill with a diameter of 6-8 mm to drill holes in the center blunderbusse hole of the cross section. After the hole is drilled through, take out the small drill bit, replace the twist drill with a diameter of 16mm, and expand and drill through the hole of the broken bolt again.

2, screws and nuts take the diameter of the welding wire within 3.2mm choose small and medium-sized current flow in the hole of the broken bolt from inside to outside to carry out surfacing welding gradually take half of the whole length of the broken bolt. Gradually surfacing welding arc should not be too long to prevent the broken bolt surface burning. After surfacing to the upper port of the broken bolt, continue surfacing to weld a 14-16mm diameter 8-10mm high cylinder.

3. After surfacing the screws and nuts, beat the ports with a hammer to make the broken bolts vibrate along the radial direction. This is because the heat generated by the previous electric isolation and the subsequent cooling combined with the vibration at this time will cause the broken bolt and the human screw to loosen.

4. Carefully observe the screws and nuts if it is found that there is a trace of rust when beating from the fracture surface, you can take the nut of M18 suction on the top of the surfacing column and weld the two together.

5. Slightly cold after welding while hot, swing back and forth on the bolt with the plum wrench protective gloves. You can also swing back and forth on the bolt.

6. Remove the broken bolt and process the wire mouth in the sound card frame with the appropriate wire hammer to remove the rust and other dirt in the hole.

Whether it is very small screws and nuts of electronic products, or general screws and nuts of furniture appliances, and even engineering projects, engineering construction, highway Bridges, transportation equipment, airports, electric vehicles, automobiles and applications of large screws, screws and nuts in these fields above occupy a very important position.