经过前处理的彩涂卷

天物彩板专注彩涂卷行业17年——经过前处理的彩涂卷_淄博镀膜彩钢板厂家请拨打网站上方电话咨询

为了去除彩涂卷表面的氧化铁，酸洗后在氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中清洗彩色涂层盘管，然后送至热浸涂层槽。热浸镀锌具有镀层均匀、附着力强、使用寿命长的优点。热镀锌钢管基体和镀液中含有复杂的物理和化学抗镀锌钢管，形成结构致密的耐蚀锌铁合金层。

彩涂卷预处理后的工件可直接放入槽内处理。在常规工艺条件下，电镀2~3分钟后取出，用盐酸除去电镀锌。如果工件表面仍有水滴，可重新电镀，然后用盐酸去除。退镀后，可用清水冲洗常规镀锌。这个过程的主要功能是。
在初次镀锌的初始阶段，可以去除部分油膜。当去除第一层锌层时， 彩涂卷锌层下的残余油污将与锌层一起被拉下。单面电镀和双面劣质镀锌钢板。单面镀锌钢板，即仅单面镀锌的产品。在焊接、涂装、防锈处理、加工等方面均优于双面镀锌板。
在冷却后的卷取过程中，由于卷取张力，涂层表面轻微变形，有时表面粗糙，显示可见的压力点形状。热浸镀锌管是使熔融金属与铁基体反应生成合金层，使基体与涂层结合。热浸镀锌是先对钢管进行酸洗。

In order to remove iron oxide on the surface of steel pipe, the color coating coil is cleaned in ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank after pickling, and then sent to the hot-dip coating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The matrix of hot-dip galvanized steel pipe and molten plating solution have complex physical and chemical anti galvanized steel pipe to form a corrosion-resistant zinc ferroalloy layer with compact structure.

The pretreated workpiece can be directly put into the tank for treatment. Take it out after plating for 2 ~ 3min under the conventional process conditions, and remove the plated zinc in hydrochloric acid. If there are still water droplets on the workpiece surface, it can be plated again, and then removed in hydrochloric acid. After retreating, it can be washed with clean water for conventional zinc plating. The main functions of this process are.
Part of the oil film can be removed at the initial stage of primary zinc plating. When the first zinc layer is removed, the residual oil stain under the zinc layer will be pulled down together with the zinc layer. Single side plated and double side poor galvanized steel sheet. Single side galvanized steel plate, i.e. products galvanized only on one side. It has better adaptability than double-sided galvanized sheet in welding, coating, antirust treatment and processing.
During coiling after cooling, the coating surface is slightly deformed due to coiling tension, and sometimes the surface is rough, showing a visually visible pressure spot shape. Hot dip galvanized pipe is to make molten metal react with iron matrix to produce alloy layer, so as to combine the matrix and coating. Hot dip galvanizing is to pickle the steel pipe first.