When choosing a spray gun, factors such as the size of the sprayed object, the variety of paint, and the quality registration standard of spraying should be considered.

If the object to be painted is large, a spray gun with a larger diameter should be used, so that the paint volume is large and the speed is fast. When spraying quality requirements are high, choose a paint spray gun with a good spray nozzle atomization. On the contrary, if the object is large and the quality requirements are not high, the selection of a spray gun with good atomization will affect the efficiency. When the amount of paint is small, the area of ​​the object to be sprayed is small, and there are many kinds of colors, the use of a large spray gun will cause waste and cannot improve the quality. At this time, a gravity spray gun should be used, because the spray gun has a small paint capacity, easy to change colors, and clean paint. Save thinner when jug.

The larger the diameter of the spray gun, the greater the air pressure required, the more paint sprayed, and the higher the consistency of the paint to be used. The size of the caliber of the spray gun and the air hole of the air cap of the spray gun nozzle are matched with each other. The air cap is divided into porous type and less-porous type. The porous air cap has a large amount of air, good atomization performance and good coating quality. The air cap with few holes has a small amount of air, but has poor atomization ability, and is suitable for objects that do not require high spray quality.

The degree of atomization of the spray coating has a lot to do with the diameter of the spray gun, the viscosity of the coating, the amount of exhaust air from the air outlet, and the angle p of the arrangement. Therefore, it is necessary to select the diameter of the spray gun nozzle and the number of air outlets according to different varieties of paint, and adjust the viscosity of the paint. If you want to know more about the methods and skills of pneumatic spray guns, please continue to pay attention to Rongpeng pneumatic tools manufacturers. Professional guarantee gives you reliable quality.