How to remove rust from screw bolts?

You have probably never given much thought to screw bolts, but they are actually important machines. The screw bolt is considered to be one of the six simple machines.

• How to deal with the covering layer of screw bolts?

• How to do moisture-proof measures for screw bolts?

• How to remove rust from screw bolts?

How to deal with the covering layer of screw bolts?

The structure of the covering layer of screw bolts should be tight and small in pores.

The layer of screw bolts is evenly distributed and has a certain thickness.

The covering layer of screw bolts is separated from the base metal and has good adhesion.

Screw bolts should be treated with corrosion resistance, wear resistance with high hardness.

Screw bolts have strong corrosion resistance, high temperature resistance, and good rust resistance. However, they will also be rust if they are often exposed to harsh environments.

How to do moisture-proof measures for screw bolts?

If the screw bolts get wet, it is very likely to rust. Therefore, in order to prevent the screw bolts from rusting, we have to protect them from moisture.

Use solvent-free paint as far as possible for screw bolts used on the vibration machinery.

It is best to use impregnating varnishes that do not contain oxidizing components.

When using melamine dipping paint, the curing temperature and time should be adjusted. The temperature should be slightly higher than 130°C and the time should be greater than 180 minutes. The process must be strictly implemented, especially in the hot and humid season.

Use paint without volatile acid for screw bolts. Or, choose a paint with good hydrolysis resistance.

How to remove rust from screw bolts?

For rusty screw bolts, do not use a wrench to tighten them to prevent the screw bolt from broken or the wrench is broken. You can gently shake the handle of the wrench with a hammer.

Use the edge of a square top hammer to knock the corroded screw bolt, which can easily loosen the nut. The nut on the cast iron can be knocked strongly, while that on the plastic should be tapped lightly. Otherwise, tap the screw bolt in a circular motion with a hammer to remove.

Some screw bolts are severely corroded, you can use fire attack. Use gas welding oxidizing flame to fully grill the screw bolts, and then drip a trace of oil on them. It can increase the gap between the screw bolt and the nut. But if there are plastic devices, use with caution.

The top of the screw bolt is corroded and out of shape, which cannot be unloaded with a wrench or wire pliers. Use a hammer and a flat screwdriver to hit a V-shaped groove in the vertical direction. Then, adjust the angle of the punching cone and impact in the direction where the screw bolt is unscrewed. After loosening, you can use wire cutters to unscrew.

It is common to break the screw bolts when disassembling. Electric drills are generally not used because the thread holes will be broken. The better way is to weld a long iron block on the broken wire by electric welding. The cross section of the iron block is determined by the diameter of the screw bolts.

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