A Study on Operation and Management Control of Hot Dip Galvanizing Bath Made of Steel Considering Cor-rosion and Wear Prevention

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  • 鋼製溶融亜鉛めっき槽の腐食・衰耗防止策からの稼動・管理制御に関する一考察
  • コウセイ ヨウユウ アエンメッキ ソウ ノ フショク ・ スイモウボウシサク カラ ノ カドウ ・ カンリ セイギョ ニ カンスル イチ コウサツ

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Abstract

Galvanizing makes the surface of the steel products to prevent the corrosion on the steel surface, and to endure the long-term use of steel products. Generally, in galvanizing process, the steel product is dipped into the molten zinc with about 440 to 470°C then zinc coating with about 50 to 150 μm is formed on the surface of the steel material to achieve long-term corrosion protection.<br>Recently, zinc coating steel structure is increasing in size therefore the size of molten zinc galvanizing bath also becomes larger and larger.<br>In this report, some examples of corrosion and wear of steel galvanizing baths by molten zinc are introduced and the mechanism of corrosion and wear by molten zinc is described. In addition, the operation and management control of hot dip galva-nizing bath made of steel is discussed from the point of view of the prevention of corrosion and wear by molten zinc.

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