Atomization Technologies Part 1 Conventional Air Spray
Atomization can be defined as a method by which force is used to convert a liquid stream into fine spray particles. The force 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. For finishing, the use of atomization The technology allows us to apply coatings for decorative, protective and adherent or a combination. To help you understand the similarities and differences between these technologies, we propose the following explanation. We will discuss other technologies in future articles.
Conventional Spray Guns
Often referred to as air spray technology uses the force of compressed air as their primary atomization. Since the liquid leaving the guns' Nozzle, the air, the director cut cap spray jets of air guns fluid flow. This causes the fluid flow to split into spray particles. This part of the air from the air duct, the air after the atomization. additional air nozzle air jets can be used to help shape the same time, the particles are distributed in a fan known as the spray pattern. This part of the air> Air Cap is known as the air blower or air to the model.
The liquid can be supplied the weapon in a variety of ways. Can be connected directly by means of a cup on the gun. The cup can be a trap, a cup or severity of a pressure kick. The least efficient configuration, but historically the most popular is the siphon or gravity feed gun. When her mane means the weapon uses compressed air from the air cap sprays to create suction action just before theguns' fluid nozzle. As the fluid in the cup is at atmospheric pressure, the fluid would move towards the vacuum created by the air cap and be siphoned out of the cup. The amount of fluid that the gun could spray is directly related to the amount of atomizing air pressure that is used.
The higher the atomizing air, the higher the fluid flow rate would be. The lack of an independent control of the atomizing air in relationship to the fluid flow rate is why the siphon gun is the least transfer efficient of the three types of feed designs. The faster the application, the higher the atomizing air would need to be. The higher the air pressure, the more over spray and bounce back there would be.
With gravity fed guns, the fluid is delivered to the gun from a cup located on the top of the gun. In this case, the fluid flow is mostly controlled by gravity. The gravitational force on the coating itself would allow the fluid for the nozzle flow through Guns' fluid on the amount required for purposes of the atomization fluid. Obviously, the viscosity coatings flow of people would be affected, and some of the dimensions of the nozzle atomizing air. The atomizing air can now be used to scroll more concern for the atomization and less liquid. Another advantage of the gravity siphon guns weapons is not spit or spray of liquid when the cup goes. It simply ceasesSpray.
Pressure powered weapons are the best of the three basic models, as the flow valve is controlled by an independent air atomization or an extra controller. cups powered pressure have become a substitute for the old traditional siphon gun, particularly with guns HVLP spray used. The reason is that Siphon HVLP simply do not have enough power for the suction of today "than solid covering. They also work with film coatings such as stainshowever.
Another advantage of pressure fed guns is that they allow the finisher to spray from any angle, unlike siphon and gravity fed guns. If you tip gravity or a siphon gun too far while spraying you will interrupt the fluid flow to the gun. Remote pressure cups, pressure pots and low-pressure pumps for higher production applications can also feed pressure fed guns.
???????????????????????�????????????????????? ????????????????????�????????? ??????????????�???????????????
ไม่มีความคิดเห็น:
แสดงความคิดเห็น