After the zinc layer of the printed color coated sheet is cooled, a kind of grain morphology will be formed on its surface, which is called zinc flower. The formation of zinc flower can be divided into many ways. Today, we mainly take you to know the
Water spraying method: When the pure zinc solution on the surface of galvanized sheet does not solidify, the crystal nucleus is formed by spraying water mist (mixture of water and steam, water and air). The undissolved zinc liquid diffuses outward from
this point to form zinc flower.
Surface blowing method: When the pure zinc layer on the printed color coating board is about to solidify, if the zinc crystal can grow smoothly through steam flow or sulfur dioxide flow, larger patterns can be obtained.
The method can also form a dense oxide film and improve the corrosion resistance of galvanized layer.
Wire mesh method: This method is only applicable to thin galvanized printing layer. It uses magnetic roller to make the wire mesh contact with
the zinc layer surface to achieve this purpose. As the contact of the wire mesh joint is cooled first, the solid particles of the product form and become nuclei, while other undissolved zinc liquids begin to crystallize as nuclei and expand outward to
form zinc sparks.
The production of zinc flower is related to the quality of finished products. If we need to make large zinc stamps on the printed color coating board, we need to consider the comprehensive factors. The above information is for
reference only. If you have more details about the product, please feel free to contact us.