Soldering iron welding skills and methods
1
Preparation
Before using a new soldering iron, polish the tip of the soldering iron with fine sandpaper, heat it up with electricity, dip it in rosin, and touch the solder wire with the blade of the tip of the soldering iron, so that the tip of the soldering iron is evenly coated with a layer of tin.
Soldering iron welding skills and methods
2
Pre-weld treatment
Perform pre-soldering treatment on component pins or soldering parts of circuit boards, remove the oxide layer on the soldering parts, and tin-plate components.
Soldering iron welding skills and methods
3
Welding method
Hold the soldering iron in your right hand. Use needle-nose pliers or tweezers with your left hand to hold components or wires. Before soldering, the electric soldering iron should be fully preheated. Tin should be eaten on the blade surface of the soldering iron head, that is, a certain amount of solder should be brought on.
Soldering iron welding skills and methods
4
welding quality
Flux (rosin and solder oil) is the key when soldering. Fresh rosin and non-corrosive solder oil can help to complete the soldering well and make the surface clean and beautiful. You can use more flux when using it.
Soldering iron welding skills and methods
5
Inspection after welding
After soldering, it is necessary to check whether there are missing soldering, virtual soldering, and component short circuits caused by solder flow. False soldering is difficult to find, you can use tweezers to clamp the component pins and pull it gently, if you find shaking, you should repair the soldering immediately.
