Many people think if there is a difference between the set temperature and the actual temperature of the soldering iron tip, it means there is a problem with the performance of the soldering iron or it is damaged. However, this is not correct. The difference between the set temperature and the actual temperature of the soldering iron tip is affected by two factors:
■1. Size and Shape of the Soldering Iron Tip
The temperature of the soldering iron tip varies depending on its shape. For example, for the soldering iron tip of the 900M series. If you replace the 900M-T-B soldering iron tip with the 900M-T-H soldering iron tip , even if the set temperature remains unchanged, their actual temperatures will be different. The temperature difference between them can reach 20 °C .
If the welding work requires frequent replacement of soldering iron tips of different shapes, it is necessary to use a soldering iron with a calibration function and match it with a thermometer for the soldering iron tip . we have to place the soldering iron tip on the thermometer first and then read the number on the display. If there is a deviation with the set temperature, we can use the calibration function of the soldering iron to adjust the soldering temperature to be nearly same with the set temperature.
■ 2.The Wear and Tear of the Soldering Iron Tip and the Heating Element
The heat of the soldering iron tip comes from the heating element. If there is an obstruction in the heat transfer process, the temperature of the soldering iron tip will decrease. If the contact area between the heating element and the soldering iron tip is oxidized, the heat transfer efficiency will be reduced. Therefore, more attention must be paid to the maintenance of the soldering iron tips
