Soldering Iron - Precautions for Soldering Operation
1. Keep the tip of the soldering iron clean and maintained. When soldering, the tip of the soldering iron is in a high temperature state for a long time, and it is easy to oxidize and get a layer of black impurities. Therefore, pay attention to wipe the tip of the soldering iron with a wet sponge at any time, and add tin to the tip of the soldering iron when it has not been used for a long time to prevent the tip of the soldering iron from oxidizing and making it impossible to stick tin.
2. When increasing the contact area to speed up heat transfer and heating, the parts on the weldment that need to be infiltrated by solder should be heated evenly, instead of only heating a part of the weldment, let alone using the soldering iron to increase the pressure on the weldment.
3. The evacuation of the soldering iron should pay attention to the evacuation of the soldering iron in time, and the angle and direction of the evacuation are related to the formation of solder joints.
4. Do not move or vibrate the weldment before the solder is solidified, otherwise it will easily cause loose solder joint structure or virtual welding.
5. The amount of solder should be moderate. The tin wire is already filled with flux made of rosin and activator.
6. The amount of flux should be moderate. Excessive use of rosin flux will inevitably wipe off excess flux after welding, and prolong the heating time and reduce work efficiency. When the heating time is insufficient, it is easy to form the defect of "slag inclusion".
7. Do not use the soldering iron tip as a tool for transporting solder (with tin soldering). Some people are used to using the soldering iron tip as a tool for transporting solder for soldering, which results in oxidation of the solder
Because the temperature of the tip of the soldering iron is generally above 300°C, the flux in the solder wire is easy to decompose and fail at high temperature, and the solder is also in a low-quality state of overheating.
