Flow Hangs, The Ills in The Spraying Process!

In the process of paint construction, excessive paint in vertical or inclined areas and the formation of top-down flow traces or local film thickening flow falling phenomenon is called flow hanging.

The reasons are as follows:

1) The viscosity of the coating is too low;

2) spit out the amount (also called the amount of paint) is too large;

3) Paint film is too thick;

4) The construction environment temperature is too low, and the air humidity is large;

5) Improper spraying method;

6) The air pressure is too small, and the paint is not well atomized.

Solution:

1) Add thickener to increase the viscosity of the coating;

2) Reduce the spit amount;

3) Increase the production speed and reduce the output;

4) Improve the temperature of the spray room and reduce the humidity of the spray room;

5) Standard spraying method;

6) Increase air pressure.

Short comments: In the process of painting coated drum closure, the phenomenon of stream-hanging may also occur, but the automatic detection machine can directly detect it.