How to debug the coating machine to the optimal operating state?
How to debug the coating machine to the optimal operating state? The best working state of the Conformal coating coating machine can be debugged from the aspects of needle selection, dispensing time and dispensing pressure of the three proofing coating machine.
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1. Selection of coating machine needle:
The diameter inside the coating machine needle should be chosen to be the same as the radius of the adhesive point. In dispensing work, suitable dispensing needles can be selected based on the size of the product, and suitable needles should be selected for products of different sizes. In this way, the Conformal coating coating machine can be used for dispensing to avoid defective glue spots.
The minimum dispensing amount of the coating machine is 0.005 milliliters less than the standard amount. The minimum inner diameter of the stainless steel needle is 0.1 millimeters, and the minimum inner diameter of the needle is 0.1 millimeters. The coating machine has a specially designed needle tip with an inner diameter of 0.02 millimeters.
Note: The height of the dispensing needle to the circuit board and the inner diameter of the needle are the most important parameters, so choosing a suitable dispensing needle is also important.
2. Setting of the dispensing time of the coating machine:
The setting of the glue amount should be half of the product spacing to ensure sufficient glue amount to stick the component, and also to pay attention to excessive glue leakage.
The glue output of the coating machine can be adjusted by the glue output time of the glue dispenser. In actual production, the glue output and time can be adjusted according to specific conditions (such as workshop temperature, glue viscosity, glue speed, etc.).
3. Pressure setting of the coating machine:
The amount of glue output of the coating machine is supplied by the controller of the Conformal coating coating machine to the rubber tube and the needle. The pressure of the three proofing coating machine determines the amount of glue output and the speed of dispensing.
Excessive pressure can lead to problems such as glue spraying and excessive amount of glue, which can affect the appearance and aesthetics of the product; If the pressure is too weak, uneven dispensing and leakage of glue may occur, which can affect product quality issues.
In real production, pressure should be set according to specific environments, such as factors such as adhesive viscosity, production workshop environment, and temperature.
