Industrial Aluminum Profile Surface Friction Electrostatic Spray Coating Principle and Characteristics-Aluminum Profiles Supplier

Rongci static spraying is also one of the methods for industrial aluminum -type electrostatic powder spraying. It mainly uses the principle of friction band charging, so that pinks with positive charges are adsorbed on the surface of industrial aluminum profiles through the collision between powder particles, and a uniform film is formed after solidification. The specific work principle is briefly described as follows. In the industrial aluminum profile friction and electrostatic spray, the electric energy carried by the powder particles is not provided by the external electric field, but it is provided by the internal friction. The spray gun is made of strong electrical negative material. The powder particles collide with the inner wall of the gun in the inner wall of the gun under the driving of compressed air. Because the material with weak electricity generates positive charge, the material with strong electrical negatives generates negative charge, and the collision between the powder particles generates a positive charge. The negative charge generated by the inner wall of the gun body is introduced to the ground through the ground line, and the positive charge powder particles are brought to the ground. Under the action of current, adsorb on the surface of the industrial aluminum profile, form a film after solidification, and complete the friction static spraying process. Because the electrical energy generated by the friction electrostatic spray coating is generated by friction, not generated by the external electric field, there is the following characteristics 1. The friction gun will not be as large as a high -voltage gun, and it will not penetrate the surface of the thin film to form electrical ionization. It can be used to spray thick film, which will not form snowflakes or numbers on the surface of the film.

2. No need to install a high -voltage static generator to reduce the cost of equipment.

3. There is no metal electrode in the rubbing gun, so there is no risk of the fire explosion during the spraying process, which does not exist in the short circuit of the electrode, which eliminates the occurrence of a safety accident.

4. There is no powder in the spray gun, it is convenient to operate, and it is conducive to the smooth progress of spraying.

5. The deposit efficiency of the powder is higher than that of high -voltage static spraying, which can be used to spray thick film.

6. The operation requirements are low, which can flexibly choose the operation method of hot spray or cold spray. The spray spray distance elastic space is large and can be kept within the range of 50-300mm. In addition to the above advantages, there are some disadvantages of industrial aluminum profile friction and electrostatic spray coating, which is mainly manifested in: the service life of the friction gun is shorter than the high -voltage gun; the powder friction has poor adsorption force, and the friction -free electricity is required. The environment should be relatively high. If the pressure of the powder supply should be maintained within a certain range, the powder is strict, so as not to block the muzzle of the spray gun, purify the air, and ensure that the powder is dry.