covering the metal with varnish, paint or oil. keeping the metal dry will help your rusting problems!
dont know not so inteeligent
In some ways. Rusting is an oxidation reaction similar to fire and it does release heat, but it is so slow that the heat does not affect the reaction. In a fire the heat released goes helps sustain the reaction.
I'll give a non chemist answer but a wise answer... logically, you are covering it with a mixture (correct this If Im wrong), preventing it to have contact with the oxygen in the atmosphere. Therefore preventing the iron to oxidize :)
Galvanising or painting both prevent iron from rusting. Painting is less expensive but also less permanent and the treatment needs to be repeated as the paint flakes off.
Rusting is an oxidation and can be considered as a synthesis of an iron oxide.
It decreases rusting but doesn't totally prevent it.
By preventing rusting of iron in bus not being sarcastic at all
Steel castings can prevent rusting depending on what the kind of steel. Carbon steel may cause rusting at a higher rate than stainless steel.
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Rusting is the oxidation of iron. To prevent rusting you must prevent oxygen from coming into contact with the product. This is normally acheived by applying a barrier of oil in working environments. Products are available for storing materials for long periods to avoid rusting. These have a more waxy nature than oil and would not be suitable to use to stop rusting in a mechaincal item. Of course if you want to prevent rusting and for it to look nice. various paints and lackers can be applied. Chemical coatings can also be applied to prevent rusting. Or simply keep the item clean and dry and rusting can be slowed.
Rusting , Corrosion & Looks
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Paint can protect iron from rusting, especially if it is the right kind of paint - you would not want to use a water based acrylic paint, since the water in the paint would promote rusting, rather than preventing it.
Anything that keeps oxygen (air) away from iron will prevent rust - galvanize, paint, oil, etc.
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Use oil
Vervain such a pretty flower.