DEFECTS IN THE SPRAY WIDTH OF SPRAY GUN AND THE SOLUTIONS (PART I)
|19.1.2021||Posted by zegospraygun under Advertising & Marketing|
As a common spraying tool, the spray gun will encounter various failures in daily use. Some users often complain that the automatic spray gun doesn’t work well again. Now TOOL-BAR MACHINERY will tell you about the common defects of the automatic spray gun and the corresponding solutions.
- The deformation of spray width
Causes: The gas hole (fan-shaped hole or auxiliary atomization hole) on the wind cowl is blocked by dry solid paint, resulting in abnormal air flow and deformation of spray width; incorrect intake pressure (too high / too low) causes the disconnection of the spray width or makes the width too small.
Solutions: clean the gas holes on the spray gun and wind cowl according to the cleaning instructions; adjust the intake pressure to normal pressure.
- The spray width is narrow in the center but large in both ends
Causes: The paint viscosity is too low, and it does not match with the spraying air pressure; the spraying air pressure and the air pressure of the fan-shaped hole are too high, which makes the center of the spraying range concave; the atomization hole is blocked, so that relatively more air runs to the fan-shaped hole, making the center of the spraying width concave.
Solutions: adjust the viscosity of the paint or use a suitable nozzle; adjust the normal intake pressure; use a suitable cleaning tool to clean the air hole of the wind cowl, and replace the nozzle set if necessary.
- The paint gathered in the center and the spray width can not spread
Reasons: The spraying air pressure and the air pressure of the fan-shaped hole are too low to fan out the shape; the paint viscosity is too high, and the air pressure of the fan-shaped hole is not strong enough to press the high viscosity paint into a fan shape; the nozzle is damaged, and the spray width adjustment knob is not opened.
Solutions: adjust the normal intake pressure; adjust the paint viscosity, or use the nozzle with appropriate caliber. If the nozzle is damaged, replace the nozzle set; check whether the spray width adjustment knob is fully opened.
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