Hot paint spraying

Advantages of hot spraying:

1) consistency of the applied material, suitable for spraying, is obtained with less solvent;

2) because the material contains less solvent, covers the treated surfaces better, which is especially noticeable at the corners;

3) do natrysku na gorąco wystarcza niewielkie nadciśnienie;

4) wykonywanie natrysku na gorąco jest szczególnie korzystne dla środowiska, as relatively few substances are atomised and fewer constituents evaporate from the solvent;

5) ponieważ natryskiwany materiał jest podgrzany, dries and hardens faster, reducing the possibility of streaking.

In hot spraying, materials heated to a temperature from 333 K (60°C) do 353 K (80°C). Spray material, it cools only slightly from the spray gun to the surface to be sprayed.

Two ways, with which the necessary pressure of the sprayed material is obtained with high-pressure airless spraying
Spray material pressure, indispensable in high pressure spraying, can be obtained as follows:
1. W urządzeniu Airless typu hydraulicznego materiał spręża się przy użyciu pompy membranowej napędzanej silnikiem elektrycznym lub spalinowym.

2. W urządzeniu Airless typu pneumatycznego ciśnienie materiału uzyskuje się za pomocą pompy tłokowej poruszanej sprężonym powietrzem. The ratio of air pressure to material pressure in this case is from 1:14 do 1:70.

When spraying varnish, the nozzle opening size of the airless device is 0,23-0,48 mm.
If the nozzle becomes clogged with debris while you spray, this is the case with a ball system (feedback) it can turn 180 ° and continue to feed material.

The electric spray gun works according to the airless principle. The built-in electric motor compresses the material to pressure 120-160 bars. The holes in the nozzle are sized 0,3-1,5 mm. The material is atomized, when its pressure drops sharply after leaving the nozzle.