如何处理镀锌板出现边部过镀锌的现象

天物彩板专注彩涂卷行业17年——如何处理镀锌板出现边部过镀锌的现象_北京镀锌板批发厂家请拨打网站上方电话咨询

在生产线的正常运行过程中，边部过镀问题会导致卷取翘曲，产生的产品是损耗很大的废品，从减少损耗的角度来看，需要首先进行处理。但是，降低生产线的速度会加剧边缘的过度镀锌，因此一个步骤可以是增加气刀的空气压力并减少整体镀锌量。通过生产一些锌含量低的产品，我们可以争取一段时间的处理时间，而不会造成大量的废品，我们也可以冷静地处理这个问题。

这两个步骤的区别在于原料、锌锅温度或气刀参数的问题。方法是观察镀锌板的边缘。如果熔渣过度镀锌，则位于边缘。如果边缘粗糙、白色且光泽较弱，则通常是由原材料造成的。此时，可以找到原材料进行验证，看是否有切边、无边裂和锯齿边。
如果镀锌板边缘光滑，且厚度距边缘4-10mm，则可能是由于气刀参数匹配不当导致过度镀锌。此时，首先调整气刀的角度，准确确认气刀的实际角度，尤其是国产科勒仿气刀，需要仔细调整，确保前后角度错开1到2。
如果从风刀钢带的边缘可以明显看出已经开始结晶，则冷却后镀锌板边缘的锌花非常小，这可能是由于锌锅温度低造成的，因此有必要立即提高锌锅的度。

During the normal operation of the production line, the edge over plating problem leads to coiling warpage, and the products produced are waste products with great loss, which need to be treated first from the perspective of reducing waste loss. However, reducing the speed of the production line will aggravate the over galvanizing of the edge, so one step can be to increase the air pressure of the air knife and reduce the overall galvanizing amount. By producing some products with low zinc content, we can strive for a period of treatment time without causing a large number of waste products, and we can also calmly deal with the problem.

The two-step distinction is the problem of raw materials, zinc pot temperature or gas knife parameters. The method is to observe the edge of galvanized sheet. If the slag is over galvanized, it is at the edge. If the edge is rough, white and weak luster, it is often caused by raw materials. At this time, you can find the raw materials for verification to see if there is edge cutting, no edge crack and sawtooth edge.
If the edge of the galvanized sheet is smooth and the thickness is 4-10mm from the edge, it is likely that the excessive galvanization is caused by improper matching of air knife parameters. At this time, first adjust the angle of the air knife and accurately confirm the actual angle of the air knife, especially the domestic Kohler imitation air knife, which needs to be carefully adjusted to ensure that the front and rear angles are staggered by 1 to 2.
If it is obvious from the edge of the steel strip from the air knife that the crystallization has begun, the zinc flower on the edge of the galvanized plate after cooling is very small, which is likely caused by the low temperature of the zinc pot, so it is necessary to improve the degree of the zinc pot immediately.