company news about Several misunderstandings of purchasing electrostatic powder spraying equipment

Misunderstanding 1: The higher the gun voltage, the faster the powder, the better.
1. According to the basic physical principle of electrostatic powder spraying equipment, we can know that when the charging voltage exceeds a certain value, it will intensify the occurrence of "Faraday effect" and "anti-ionization effect", and more affect the powder rate
2. Too high electrostatic voltage is easy to cause the phenomenon of gun tip ignition, easy to leave pinholes on the surface of the workpiece, resulting in poor apparent quality.
3. The phenomenon of high pressure ignition will also increase the phenomenon of dust combustion in the dusting room.
Therefore, in the actual use process, the voltage should be adjusted to the appropriate stage according to the characteristics of the powder and the characteristics of the workpiece in order to obtain a better spraying effect. Mistake 2: A workpiece with a simple shape can use a spray gun with poor performance.
1. Some users think that the shape of the workpiece is simple, so it does not need a spray gun with good performance. In fact, the good performance of the spray gun is not only the ability to overcome the shape, but more importantly, the uniformity of the powder state will achieve a better apparent coating and powder rate. And the powder rate is high, of course, it will save powder and greatly reduce production costs.
2. Good electrostatic performance will also speed up the production speed and improve work efficiency.
3. Uniform powder will also improve the yield, reduce the scrap rate, and make production management easier.
4, poor performance spray gun due to the use of components performance is relatively poor, although the cost is slightly lower, but the failure rate will be much higher, even if the manufacturer timely maintenance will inevitably delay production.
Therefore, the workpiece shape is definitely not a reason to choose a poor performance spray gun. Misunderstanding 3: The greater the amount of powder produced by the spray gun of the electrostatic powder spraying equipment, the higher the powder rate, the faster the work.
1. In the process of long-term work, we have encountered many users who put forward that the larger the spray gun powder, the better the powder. In fact, the powder rate of the spray gun is determined by the electrostatic properties and the powder state. Only when the electric field strength and powder output reach the best matching point can the best powder rate be achieved.
2. Too much powder from the spray gun will inevitably affect the uniformity of the powder state, which is the root cause of the uneven powder state of many large powder spray guns. The poor powder state may cause uneven coating thickness.
3. Through a large number of foreign experimental data and practical work experience, we can conclude that the powder output of the spray gun can meet the work needs in 450g/min, and the larger powder output will only lead to a part of the powder can not be charged at all, no adhesion, and directly fall into the recovery system, resulting in serious waste.
4. The spray gun with excellent performance is developed according to the optimal ratio of electric field strength and powder output, which not only eliminates unnecessary waste, but also makes the powder state uniform and perfect, and improves the powder rate.