In the process of spraying operations, improper operation of the best pressure feed spray gun will affect the product spraying effect. Good spraying effect is shown in:
1.The average distribution of the coating.
2.The coating can not be too thick or too thin.
The distance between the nozzle discharge port and the object to be coated is called the gun distance. The smaller the gun distance, the greater the spraying pressure, the greater the impact of air pressure on the product, the coating will be uneven, resulting in the problem of overcoating. The larger the gun distance, the smaller the spraying pressure, the easier to lose the coating, so that the coated part of the spraying material is too little, and the coating does not reach the specified thickness. The spraying fan surface and the surface of the object to be coated present a vertical state. When manually manipulating the gun, the spraying width should not appear too large, otherwise the problem of average coating will occur. The purpose of gun operation should always be parallel to the surface of the object to be coated, perpendicular to the surface of the spraying fan, the operation rate is not stable, the coating thickness is not even, the operation rate is too fast coating is too thin, the operation rate is too slow coating is too thick. All in all, when using the best pressure feed spray gun, to achieve the right strength, the right distance can be, so that you can get the desired coating effect, after the construction, some sweeping things also need to be perfected, the paint and help apparatus to clean up, after the use of the residual paint to block the retention of these are the issues that need attention.
Operation of using the best pressure feed spray gun needs to pay attention to the main points including: gun movement speed, trigger control, gun distance and gun grip posture, etc., the following for you to elaborate.
H2: Speed of the best pressure feed spray gun movement
In the spraying operation, the speed of gun movement has a great impact on the coating effect.
1.If the best pressure feed spray gun moves too fast, the surface coating of the object is to be coated thin, dry, poor leveling and clumsy.
2.If the best pressure feed spray gun moves slowly, the surface coating is certainly very later, and easy to produce flow hanging phenomenon.
3.The most ideal gun moving speed is at the end of spraying, the surface coating of the object is full, uniform and wet. This requires a certain amount of experience in spraying operators to control.
The best pressure feed spray gun is controlled by the trigger. The deeper the trigger, the greater the liquid flow rate. Electrostatic spraying equipment in the process of the traditional gun, the trigger is always totally controlled, not half-button. In order to avoid the accumulation of paint sprayed at the end of each gun line, experienced paint sprayers have to slightly relax the trigger to reduce the amount of paint supply.
Spray gun to the surface of the substrate should be kept vertical, or as vertical as possible. If the gun is a little skewed, the result will certainly cause the spray width with a bias to one side of the flow, while the other side is dry and thin, lack of paint, most likely to cause streak-like coating.
For the air siphon spray gun, the best working interval of 15 ~ 20cm. if the interval is too close, it may produce flow, in the spray metal glitter paint or pearl paint may even cause color inconsistency with the expected. If the interval is too far. More than 20cm, it may lead to dry spraying, over spraying, so that the leveling of the paint becomes poor. If the sprayed metal glitter paint, there may also be the possibility of color change. The pressure feed gun can be placed farther away from the substrate. These are the principles that must be followed when spraying construction.
Spray gun is held by the palm of the hand, thumb, pinky and ring finger, middle finger and index finger to pull the trigger. Some painters work for a longer period of time is to change the way to hold the gun from time to time, sometimes just use the thumb, palm with the pinky, and sometimes with the ring finger to hold the gun, the middle finger and index finger used to pull the trigger. Electrostatic spraying equipment so as to relieve fatigue and improve efficiency.