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Selection of steel coil: First of all, you need to choose the right material for the steel coil
Commonly used materials include cold rolled steel coils, hot rolled steel coils and so on. According to different needs, choose the right thickness and specifications of the steel coil.
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he first is degreasing and descaling, removing grease and oxidized skin on the surface of the steel coil by acid washing or mechanical removal to ensure the adhesion of the plating layer. Then surface cleaning is carried out, using alkaline solution to remove residual impurities and dirt.
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First a solution containing appropriate amount of Al-Zn alloy needs to be prepared and poured into the galvanizing bath. The formulation and concentration of the solution will be adjusted according to different requirements.
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where the coil moves in a circular motion. Under the action of electric current, the aluminum-zinc alloy will form a uniform coating on the surface of the steel coil.
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Common coating treatments include hot rolled coatings, powder coatings etc. These coatings can increase the corrosion resistance of steel coils and also provide a variety of colors to choose from.
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The coils can be cold rolled or hot rolled to change their shape and thickness.
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The inspection includes the thickness, adhesion and corrosion resistance of the coating. Qualified steel coils will be packaged, usually in wooden crates or steel pallets for transportation and storage.
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