LVMP Spraying Technology And HVLP Spraying Technology

       

In the last article, we talked about air
spraying technology and high-pressure airless spraying technology. Let's review
the high flow and low pressure spraying technology first. High flow and low
pressure spraying technology can reduce the rebound and overspray of coating by
reducing the atomization pressure of spray gun, so as to improve the low
transmission efficiency of ordinary air spraying. The power source is not the
pressure of compressed air, but the flow, and the pressure is only 0.2MPa, and
the atomization pressure at the hood is less than 0.07MPa. Therefore, the
spraying speed is greatly reduced, reducing the rebound and waste of coating,
so the transmission efficiency can reach more than 65%. However, it also has
its defects, because its HVLP atomization pressure is low, it can only be
suitable for coatings with low viscosity, and the production efficiency is
relatively low.

Let's take a look at the characteristics of
lvmp spraying technology. Lvmp spraying technology combines the advantages and
disadvantages of traditional spray gun and HVLP. Through the unique air cap and
gun body structure design, the atomization effect of the coating is better than
HVLP, the transmission efficiency of the coating can reach more than 72%, and
the adaptability to the viscosity of the coating is also very good.

High pressure airless spraying technology,
high pressure airless spraying technology, uses high pressure pump to apply
7.5-30Mpa high pressure to the coating, so that it can spew through the olive
type nozzle. Then it will crack into a very fine spray. At the same time, the
paint speed will drop to about 1.2/s. This pressure difference will make the
paint atomized into fine particles to spray onto the furniture surface, forming
a uniform fine film. This kind of technology is especially suitable for coatings
with high viscosity or high solid mass, with high production efficiency and
less environmental pollution. However, because of its general atomization
effect, the paint output can only be controlled by the nozzle, which is
difficult to adjust at will, and the coating flow is large, so it is not
suitable for coating small-area workpieces or thin-layer coatings.

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