what is galvanisation preventive methods. tell only preventive methods of it
Answers
Answer:
Galvanization or galvanization (or galvanizing as it is most commonly called) is the process of applying a protective zinc coating to iron or steel, to prevent rusting. The most common method is hot dip galvanizing, in which steel sections are submerged in a bath of molten zinc.
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Answer:
How does galvanisation prevent rusting?
Galvanizing protects from rust in a number of ways:
It forms a barrier that prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron.
The zinc surface reacts with the atmosphere to form a compact, adherent patina that is insoluble in rainwater.