FIELD: metallurgy; hot galvanizing baths. SUBSTANCE: thermal unit for galvanizing bath has detachable hood over its surface provided with branch pipe connected to fan, air knives with air line where burners and filters are available, heating elements being mounted in lower portion of hood. Thermal unit reduces forming of oxides in galvanizing process of steel sheets. EFFECT: enhanced efficiency. 2 cl, 2 dwg
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