On the surface of the Dongguan spiral duct , there is usually a layer of electroplating, mainly zinc, which is mainly used to protect the iron skin. Generally, we call it zinc plating. After the galvanized layer is formed, it is generally subjected to passivation treatment and dyeing, or coated with a light protectant. This can improve the protection of the galvanized layer and also has a certain decorative effect.
However, after using the Dongguan Spiral Duct for a period of time, sometimes there are dirt, dust, etc. on the surface, so it must be removed so that the Dongguan Spiral Duct can be used normally. What are the methods?
Method 1: The vacuum suction method is to use a vacuum suction pipe, and then manually remove it. It requires a large manhole for the air duct, but the formed air duct may be missing during manual operation, so it is not very good.
Method 2: The power scrubbing method is to use a pneumatic or electric brush to remove the dirt, and then collect the dirt together. It can be collected using a vacuum collector, but it is required not to damage the surface of the duct.
Method three: The gas flushing method uses compressed air to transport compressed air to drive away the dirt, and the dirt is transported to a vacuum container for concentration.