Five methods to improve the welding quality of electric soldering irons
1. When using an electric soldering iron for welding, it is necessary to ensure that each welding point is firmly welded and has good contact to ensure welding quality.
2. Good solder joints require bright, smooth, and free of burrs, with moderate tin content. Tin and the soldered object fuse firmly. There should be no false welding or false welding.
3. Pay attention to the prevention of false soldering and false soldering: False soldering refers to a situation where only a small amount of solder is stuck at the solder joint, resulting in poor contact and intermittent disconnection. Fake soldering refers to a situation where it appears to be soldered on the surface, but in reality, it is not soldered on. Sometimes, when pulled out by hand, the lead will be pulled out of the solder joint.
4. When soldering circuit boards, it is necessary to control the time well. If the time is too long, the circuit board will be burnt or cause the copper foil to fall off. When disassembling components from the circuit board, the soldering iron tip can be attached to the solder joint, and after the tin on the solder joint melts, the component can be pulled out.
5. When welding, flux (rosin and solder oil) is crucial. Fresh rosin and non corrosive solder oil help to complete welding with high quality, and can make the surface smooth and beautiful. Use more flux.
Precautions for welding operations
1) Lead accounts for a certain proportion in the composition of welding wire, which is harmful to the human body. It is necessary to wear gloves or wash hands after operation to avoid ingestion.
2) The chemical substances that evaporate during the heating of the flux are harmful to the human body. When operating, if the person's nose is too close to the soldering iron head, it is easy to inhale harmful gases. The distance between the nose and the soldering iron is generally not less than 30cm, and it is generally recommended to use 40cm.
3) Use an electric soldering iron to configure a soldering iron holder, usually placed in the right front of the workbench. After use, the electric soldering iron must be securely placed on the soldering iron holder, and be careful not to touch the soldering iron head with wires or other objects.
