What is the basis for measuring the soldering iron tip after using the constant temperature electric soldering iron for a long time?
1. Steps to use:
1. Make sure the asbestos is wet.
2. Remove impurities on the surface of the heating tube.
3. Confirm that the soldering iron screw is locked tightly without loosening.
4. Make sure the 220V power outlet is plugged in.
5. Turn the power switch to the ON position.
6. Adjust the temperature setting adjustment button to 300°C. After the heating indicator light goes out, use a thermometer to measure whether the temperature of the soldering iron tip is within 300°C±10°C; then heat to the required working temperature.
7. If the temperature exceeds the range, stop using it and send it for repair.
8. Get started.
2. End use steps:
1. Clean and wipe the tip of the soldering iron and add a little tin wire for protection.
2. Adjust the temperature setting adjustment knob to the lowest temperature that can be set.
3. Turn the power switch to the OFF position.
4. Unplug the power plug.
3. The most suitable working temperature
Using too low temperature during the soldering process will affect the smoothness of the solder. If the temperature is too high, it will damage the copper foil of the circuit board and the soldering will be incomplete and unsightly. If white smoke comes out or the surface is uneven and dull with white powder, the temperature is too high. Both of the above situations may cause cold welding or cladding welding. In order to avoid the above situation, in addition to using tin wire with caution, it is necessary to choose an appropriate and correct working temperature.
The following are the appropriate operating temperatures for various soldering jobs:
The melting point of general tin wire is 183℃～215℃ (about 361℉～419℉)
Normal working temperature 270℃～320℃ (about 518℉～608℉)
The operating temperature of the production line is 300℃～380℃ (about 572℉～716℉)
Working temperature of tin suction (small solder joint) 315°C (about 600°F)
Tin absorption working temperature (large solder spot) 400°C (about 752°F)
Note: In the red zone, that is, the temperature exceeds 400°C (752°F), do not use it frequently or continuously; it can only be used for a short time when it is occasionally used for large solder joints or very fast soldering.
