A cooling fan needs to go through multiple processes to complete. Each fan of a responsible manufacturer needs to pass strict inspection before it can be handed over to customers. Let's introduce the appearance inspection specifications of cooling fan manufacturers.

Welding standard: 1. Confirmation of welding color sequence. 2. The solder joint shall be smooth and oval, and the bare wire head shall be completely wrapped by tin spot, and no obvious bare wire head shall be exposed, and the bare wire shall be completely covered. 3. The welding wire should be welded along the direction of the pad, and the wire skin should not have obvious scald.

Glue dispensing instructions: 1. Purpose: to fix the wire, avoid shaking, break from the root of the bare wire head, and prevent corrosion. 2. Non moisture-proof model: the red glue covers the root of the bare wire, and the wire skin needs to be fixed on the board surface; 3. Moisture proof model: the red glue should completely cover the pad and fix the wire skin.

For 12 years, we have learned about the fan and fan cooling industry in Shenzhen Low noise fan, suitable for inverter, power supply equipment, cabinet fan, communication industry, office supplies, household appliances, charging pile, new energy and other industries.