Why iron sheets are treated with hydrochloric acid before galvanizing?
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are cleaned with HCl acid before galvanising them with Zinc? To clear away and impurities on the surface of the iron. Any impurities leave weaknesses for oxygen to breach theming barrier and react with the iron to form rust. ... The galvanised iron lost its zinc coating even after it doesn't corrode.
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To clear away and impurities on the surface of the iron. Any impurities leave weaknesses for oxygen to breach theming barrier and react with the iron to form rust.
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