Atomization Technologies Part 1 Typical Air Spray
Atomization can be explained as a method by which push can be used to convert a liquid stream into fine spray particles. The pressure can be from compressed air, from pumps that pressurize the fluid, from centrifugal forces, from electrostatic forces and by various combinations of the above. For our purposes, we refer to these methods as atomization technologies. Intended for finishing, the use of atomization technologies allows all of us to apply coatings for decorative, protective or dummy purposes or for a combo thereof. To help you be familiar with commonalities and the distinctions between these technologies, we provide the following explanations. We will discuss other technologies at a later date articles. stříkací pistole
Conventional Spray Firearms
Frequently referred to as air spray, this technology uses compressed air as it is primary atomization force. Seeing as the fluid exits the spray guns’ fluid nozzle, jets of air aimed by the spray weapons air cap intersect the fluid stream. This triggers the fluid stream to break apart into the fine spray particles. This kind of part of the air from the air cap is referred to as the atomizing air. Additional aircraft of air from the air cap are being used together to help distribute the particles into admirer like condition referred to as the spray pattern. This kind of percentage of the air from the air cap is referred to as the fan air or the pattern air.
The smooth may be shipped to the gun in a variety of ways. It might be fastened to the gun immediately by means of a cup. The cup can be a siphon glass, a gravity cup or a pressure cup. The very least efficient yet historically most popular configuration was the siphon or cup firearm. As the mane suggests the gun used the compressed air from the air cap to make a siphoning action just before the spray guns’ smooth nozzle. As the smooth in the cup is at atmospheric pressure, the fluid would move towards the vacuum created by the air cap and become siphoned out of the cup. How much fluid that the gun could squirt is directly related to the amount of atomizing air pressure that is used.
The bigger the atomizing air, the bigger the substance flow rate would be. The lack of persistent control of the atomizing air in relationship to the fluid flow rate is the reason why the siphon gun is the least transfer successful of the three types of feed designs. The faster the application form, the higher the atomizing air would need to be. The higher mid-air pressure, the more over spray and bounce back there would be.
With gravity given guns, the fluid is delivered to the weapon from a cup located on the top of the gun. In cases like this, the fluid flow is mainly handled by gravity. The gravitational force on the finish itself would allow the fluid to flow through the guns’ fluid nozzle thus reducing the amount of atomizing air needed for fluid flow purposes. Obviously, the flow would be afflicted by the coatings viscosity, how big is the fluid nozzle and to some degree by the atomizing air. The atomizing air can now be used more for atomizing and less for fluid flow concerns. Another advantage to the law of gravity guns over siphon weapons is that they do not spit or sprinkle when the cup operates out of fluid. They will just stops spraying.
Pressure fed guns are the best of three basic designs as the liquid flow is independently manipulated from the atomizing air by an additional air regulator or valve. Pressure fed cups are now widespread as a replacement unit for the old traditional siphon gun, especially with HVLP guns. The reason for this is the fact HVLP siphon prints simply do not have enough siphoning power for today’s’ higher solids films. They work well with thin coatings such as stains however.
Another good thing about pressure fed guns is they allow the finisher to spray from any angle, unlike siphon and gravity fed guns. In the event you tip gravity or a siphon gun too far while spraying you will interrupt the smooth flow to the shot gun. Remote pressure cups, pressure pots and low-pressure pumping systems for higher production applications can also feed pressure fed guns.