Strip flow is the main flow that impacts the quality of color coated coil surface. And this occupies a large proportion in all flows of color coated products. Due to the invasion of polluted foreign matters, the surface of coated film sees continuous line strip flows. And these flows sometimes move horizontally, which forms the dirt line.
Dirt line frequently occurs in the surface of color coated coil because some links suffer abnormal situation or improper control. This greatly impacts the appearance quality of color coated coil, thus the products can not be used by users.
According to long-term practice of CAMELSTEEL, there are many factors influencing the occurrence of dirt line. Such as feed stock, coating, coating stirring, environment cleaning, coating equipment, coating auxiliary tools, etc. Thus, in order to reduce the probability of occurrence of dirt line flow to the greatest extent, it is necessary to integrate various factors, focus on different details and adopt corresponding measures.