彩涂板生产厂家彩色镀锌板应具有突出的外观，不应有任何有害于产品使用的缺陷，如无镀层、孔洞、裂纹和浮渣、镀层厚度以外的划痕、铬酸粉尘、白锈等。详细的外观缺陷规则在国外规范中非常清楚。订货时应在合同中详细说明不足之处。镀锌量标准值：镀锌量是指示镀锌板厚度的有效方法。镀锌量单位为g/m2。
Appearance: due to different treatment methods in the coating process, the appearance of color coated galvanized sheet is also different, such as common zinc flower, fine zinc flower, flat zinc flower, non zinc flower and phosphating treatment. German norms also have a hierarchical look.
The color galvanized sheet shall have a prominent appearance and shall not have any defects harmful to the use of the product, such as no coating, holes, cracks and dross, scratches beyond the coating thickness, chromic acid dust, white rust, etc. The detailed appearance defect rules are very clear in foreign specifications. Defects shall be specified in the contract when ordering. Standard value of galvanizing quantity: galvanizing quantity is an effective method to indicate the thickness of galvanized sheet. The unit of galvanizing quantity is g / m2.
