The linkage console is in order to make the product for a long time, and it will be selected to be plated with zinc on the surface without being oxidized, which can effectively avoid the case where the oxidized rust cannot be used. However, there is often a spot or irregular black area where there is a position.
What is the reason?
The link between the linkage console is attached or foreign matter when used, which will directly lead to leakage. The oxide layer is not reduced before entering the zinc pot, causing zinc to decrease the infiltration of the product, resulting in a phenomenon that the leakage occurs. It is easy to initiate refractory materials before starting the furnace, resulting in some minor particles to attach in the linkage console, affect the product quality. To avoid this, the linkage console should be left away from the furnace. After the production is completed, it is doing its quality inspection, and there is a case where the zinc should be reundened.
Or shorten the step residence time, strengthen the pre-galvanizing pre-treatment, to ensure that the linkage of the linkage console can prevent leakage. And when we are using it, we should pay attention to the zinc that the linkage console will be used for a long time.