Many times we buy a set of large dusting equipment, due to improper operation or will not operate there will be a lot of defective products, resulting in low product efficiency and low quality spraying. When dusting equipment manufacturers customize equipment, they are customized according to the standard, but improper operation will also appear a lot of problems, and now I will tell you a few key points that affect the efficiency and quality of dusting equipment.
1 powder resistance: the resistivity of the powder is ideal between 1010~1016 ohms/cm, if the resistivity of the powder spraying equipment is too low, it is easy to lead to powder dispersion, if the resistivity is too high, it will affect the thickness of the coating. 2. Spray amount: the film thickness is greatly affected by the powder spraying device, the deposition speed is faster, and the powder spraying amount is generally controlled at 50~1000 g/min. 3. Velocity gradient: The velocity gradient refers to the ratio of the speed of the powder mixture gas at the outlet of the powder spraying device to the spray distance, and the thickness of the film gradually decreases with the increase of the spray gradient. 4. Spray distance: The coating distance is the main parameter to determine the thickness of the coating film, under normal circumstances, the coating distance is between 10~25cm.
5. Spraying time: With the extension of the dusting equipment, the increase of the coating distance, the coating voltage gradually decreases, with the increase of the dusting time, the change of the coating voltage will be significantly reduced. These are the key points of attention when the dusting equipment manufacturer customized equipment, in the purchase of equipment, we should first understand the use of the dusting equipment line process and equipment need to pay attention to the point, in order to use there will be no more errors, but also make the product spray efficiency, higher quality.
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