Rusty screws often complicate disassembly, but it's not insurmountable. In this article, we will share some practical tips for quickly and effectively solving rusty screws based on real-life experience and disassembly knowledge, so that you can easily cope with this common repair problem.
1.Causes of rusty screws.
Oxidation reaction: Rust is mainly due to the oxidation reaction of the metal on the surface of the screw with oxygen, forming rust. Factors such as a humid environment, oxygen in the air, and metal materials can all cause rust of the screws.
Not used for a long time:
If the screw is not used for a long time, it is easy to accumulate dust, moisture, etc., and accelerate the process of rusting. In this case, there may be some resistance when dismantling.
2.Removal tool for rusty screws.
Use a professional screwdriver:
Choose a screwdriver for the screw model and ensure that the knife edge fits snugly into the screw groove to improve the tightening efficiency. For screws with heavier rust, choose a screwdriver with a non-slip design to increase the grip.
Screw remover:
Screw remover is a chemical specially designed for rusty screws, which has the characteristics of strong permeability and good lubrication effect. Pay attention to ventilation before use, spray on rusty screws, wait a few moments, and then disassemble.
3.Combination of lubrication and heating.
Use of lubricants:
Drip lubricant into the rusty screws and allow it to penetrate into the thread gaps. The lubricant helps to reduce the friction on the surface of the screws, making the disassembly process smoother.
Principle of Thermal Expansion:
Using the heating principle, the screws can be loosened. Using a torch or heat gun, heat is applied to the screws, and the principle of thermal expansion and cold contraction causes the screws to expand, helping to break down the rust layer and making it easier to remove.
4.Application of passivating agents.
The role of the passivator:
Passivators can change the chemistry of the surface of the screw, forming a protective film that slows down the rate of corrosion. Before disassembly, you can apply the passivating agent to the screws and wait a few moments before disassembling.
Vinegar and soda mixture:
Mix vinegar and soda into a paste, apply to rusty screws, and wait a little. This mixture has an effect on removing the rust layer and helps to improve the efficiency of disassembly.
5.Twisting techniques.
Back and forth**When disassembling, you can try to twist the screw a little clockwise, and then counterclockwise, back and forth, sometimes you can break the rust layer and reduce the difficulty of disassembly.
Twist counterclockwise**
When twisting the screws, you can try twisting it counterclockwise for a short distance, then clockwise, repeatedly. This helps to gradually overcome the resistance of the rust layer, making it easier for the screws to loosen.
6.Precautions.
Protect your hands: Always protect your hands when using tools for disassembly. Wear gloves to avoid hand injuries caused by excessive force.
Be aware of safe distance:
When using a torch or heat gun for heating, pay attention to a safe distance to avoid burns or other hazards.
Use chemicals with caution:
When using chemicals, be careful to avoid contact with ** and eyes, and ensure that the operation is carried out in a well-ventilated environment.
Using a combination of the above techniques, the removal of rusty screws will become much easier. In real-life maintenance, you will be able to better solve the problems caused by rusty screws, improve maintenance efficiency, and easily cope with various disassembly work.