Production and Application of Hot

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Production and Application of Hot

qizhenapp
<p>Production process characteristics Cleaning: Compared with the production of hot galvanized sheet, the production of aluminum-zinc alloy coated steel plate on the substrate cleanliness have more stringent requirements. This is due to the hot-dip galvanized alloy, the bath aluminum content is higher, the bath temperature is higher, the aluminum is  recycled material wood   easy to oxidize, easy to produce zinc vapor, so easy to deteriorate the coating adhesion. Therefore, in order to ensure the adhesion of the coating, hot-dip galvanized alloy plating board production generally need to use the furnace cleaning, that is, in the annealing furnace before the installation of electrolytic degreasing cleaning section.</p><p> Hot-dip galvanized alloy plating plate annealing and ordinary hot-dip galvanized sheet compared   can you lacquer over scratches on vinyl fence  to two issues to be considered: Second, because the bath temperature than the melting point of zinc higher than 200 ℃, easy to cause the nose of the evaporation of zinc, This zinc vapor is attached to the strip, which can cause the product to be defective. Therefore, it is necessary to ensure a strong reducing atmosphere in the furnace and to strictly control the zero temperature at the furnace nose. </p><p>In order to obtain better coating adhesion, the temperature of the strip into the zinc pot is about 50 ℃ lower than the bath temperature. In order to refine   wooden fence railing sale  the dendritic structure of aluminum-rich, reduce the dendrites between the zinc-rich crystal grain fraction, in order to improve the corrosion resistance of the coating (aluminum-like crystal fine, inter-crystal gap is small, In addition, in recent years, in order to improve the formability and environmental protection of hot-dip aluminized zinc alloy plating plate, the hot-dip galvanized alloy coating plate is   cheap waterproofing for wood plastic  also treated with chrome acid, The hot-dip galvanized alloy coating is used as a color coated substrate</p>
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