The principle of anti-rust: Keep steel away from water, oxygen and other substances.
The easiest way: to keep the surfaces of steel products clean and dry
Surface protective film: oil, spray paint, burning enamel
Plated with a layer of corrosion-resistant metal: galvanized iron tube, bicycle steel chrome plated
Reaction produces a dense oxide film: bake blue on the saw blade
Change the internal structure of the metal and melt into a corrosion-resistant alloy: stainless steel
Remove rust spots:
1, rust spots on the metal objects, wipe with a soft cloth on the toothpaste, the effect is quite good.
2. In case of stubborn rust stains, dilute halogen bleach can be applied and rinse with water after a few moments.
3. If the rust is only on the surface, it can be removed by scrubbing with a decontaminating powder.