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Most users will perform atomization tests for the newly purchased spray guns. Today we list a few universal error test methods. Are you the same?
1 Use volatile solvents (scarcity) Test spray gun:
Volatile solvent boiling point is low. Finally, there are not many solvents on the test board, and the results of the test cannot be accurately obtained; and the dilute materials are rushing and unstable during the atomization process.
Suggestion: Directly tested with paint.
2 View the atomization effect of the spray gun directly:
Affected by air flow, viewing angle and light, it cannot intuitively see the spray gun Whether the atomization effect is normal.
Suggestion: Spray in the test board to see the shape of the spray.
3 Use incorrect spraying gas pressure test spray gun:
High spraying air pressure, resulting The glyphs, the ends of the spray amplitude are large, the middle is small; the spraying gas is low, resulting in the inability to sufficient atomized paint, the spray amplitude is small, and the coatings gather.
Suggestion: adjust the air pressure and distance according to the parameters recommended by the SATA spray gun packaging box.
4 Test spraying with water:
The viscosity of water (about 11 seconds/din4) is lower than the coating, using normal jet compression testing test There will be a large ends of spraying, small in the middle.
Suggestion: It is best to use the paint to test directly. If the spray amplitude is tested with water, please reduce the spray air pressure to half of the recommended air pressure.
Correct test method:
According to the parameter recommended by the bottom of the SATA spray gun packaging box The amount and spray amplitude are adjusted to the maximum, the spray gun and the test board (paper) are 90 °, the trigger buckle is about 2 seconds, and the spray shape of the spray spray on the test board (paper) is normal.
