Study on High Hydrogen Fast Cooling System for High Strength Steel Galvanizing
The slit burner is used to study the high strength steel galvanizing quick cooling system by using nitrogen hydrogen mixed gas for impinging jet.The results show that the increase of hydrogen content in the nitrogen hydrogen mixed gas can increase the thermal conductivity of the mixed gas,thereby increasing the average heat transfer coefficient of the nozzle.Based on the data analysis of engineering examples,when the high hydrogen quick cooling system of high strength steel galvanizing achieves the best rapid cooling effect,The optimum ratio of nitrogen to hydrogen in the mixed gas is 30%/70%.
cold rollinghigh strength steel galvanizinghigh hydrogen fast coolingimpingingjet
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