[China Aluminum Network] Spray Gun Position The spray gun should maintain a certain degree of inclination, biased toward the direction of the profile running, the spray guns remain vertically aligned in the arrangement, the end parts remain in a straight line, there should be no overlap between the spray guns The position of the upper and lower spray guns is preferably covered with powder. The control of the fluidized air pressure is controlled by the fluidized air pressure. The function of the fluidized bed is to use the effect of the air flow to make the powder form an appropriate fluidized state. The feel is similar to the state of the liquid flow, and the detection fluidization reaches a sufficient state. It is relatively simple. The operation is: When the powder is agitated with a hand or a stick, no resistance is felt. The fluidization facilitates the suction of the powder into the duct, and under the action of the accelerated wind, the effect of atomization is produced. When the pressure is insufficient or the pressure is too large, the powder which is not sufficiently fluidized can be recovered and reused, and the powder can be reused and adsorbed on the surface of the profile. The powder only accounts for about 1/3 of the total powder output of all the guns. There are more powders scattered in the spray booth. The recycled powder must be mixed with the newly added powder in an appropriate ratio. The effect is relatively good, so the powder should be recycled and reused. The closedness of the closed spray booth in the room, the powder is easily contaminated by the external air suspension, the surface of the profile after spraying is prone to produce floc or shrinkage holes, after baking, it affects the flatness of the profile surface, so the spray The house should take enclosed measures to prevent the intrusion of pollutants. Tracheal residual powder should be promptly cleaned and cleaned. If it is not used for a long time, it is easy to agglomerate. The powder is prone to produce powdered powder, which affects the spraying effect. The spare powder bucket is used for powder replacement and can effectively improve labor efficiency. Dust, moisture and other maintenance work must be done to ensure the quality of the remaining powder in the powder bucket. The powder filling operation should also be paid attention to. Although the technical parameters have been debugged before production is normal, it is necessary to constantly monitor the profiles through the powder filling window, and find that the powder is light and the powder is not adsorbed. Make up powder in time. Because the amount of powder emitted by the manual friction gun is larger than that of the automatic gun, the speed of the manual friction gun can be appropriately accelerated. In addition, due to the influence of its own structure, some profiles have some dead angles in the dusting process. Even if powders are added, they cannot achieve normal results. These positions should be distinguished, and must not be blindly filled with powder. Otherwise, too much powder, film Thicker, affect the quality of the profile surface, and wasted powder. This position is mostly located on the deeper and narrower profile of the groove, these grooves are mostly located on the non-decorative surface of the profile. The effect on the overall appearance of the profile is not significant because the two opposing surfaces in the groove are at The same pole and the distance is too close, forming a mutually exclusive electric field, that is, Faraday shielding effect, hindering the adsorption of powder inside the groove. The operation of the oven (curing oven) should pay attention to the problems during the production process of the oven. During the powder spraying production process, due to the limitation of the production line, the running time of the profile in the oven completes the entire baking process, despite the fact that the oven Relatively simple in the operating procedures, but in the process parameters control requirements are more stringent, such as the conveyor belt speed, furnace temperature control, operating speed can be adjusted by the frequency of the frequency control motor control, furnace temperature control involves a key point In the adjustment of the air supply pressure, the air supply pressure is required to be stable at about 1 kg/cm2. To achieve this requirement, the pipeline gas is generally used, and the pressure of the air supply is continuously adjusted using a pressurizer to ensure the normal operation of the combustion device.