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How do we guarantee the quality of circular hole needle arrangement technology? How much do we know about round hole stitching? The following description is how to guarantee the quality of circular hole needle arrangement. The technique can be used to guarantee the quality of circular hole needle arrangement. The details are as follows:
1, anti-static round hole needle electronic display screen assembly factory should have a good anti-static method.
2. Heat dissipation planning: There will be heat in the operation of circular hole stitching. Excessive temperature will affect the attenuation speed and stability of LED, so the heat dissipation planning of PCB board and the ventilation and heat dissipation planning of box will affect the performance of LED.
The nominal current of the circular hole needle is 20mA, and it is generally advocated that the maximum applied current should not exceed 80% of the nominal value, especially for the display with a small distance between the points, because the heat dissipation condition is not safe, the current value should also be reduced.
4. The temperature and time of wave-front welding must be strictly controlled. The preheating temperature is 100 ° C ±5 ° C, and the highest temperature should not exceed 120 ° C, and the preheating temperature should rise steadily. The welding temperature is 245 ° C ±5 ° C, and the welding time should not exceed 3 seconds.