When I solder the original with an electric soldering iron, why is it that the solder iron is not smooth and sharp when leaving the solder joint? I'm using 50W's internal heating circuit, iron!
If the solder is not fused thoroughly, try some rosin (flux) to aid it. If it is a temperature regulating iron, please increase the welding temperature properly.
Welding of electronic components, can not use excessive power iron, easy to damage the original. It is recommended that you add a high and low switch to the electric iron, that is, a diode is added inside the ship type switch, which can be used as a high and low gear. Try low temperature soldering.
Basically, the flux is not enough50W soldering iron, it may be too much power or too long soldering, the flux has evaporated, it will bring a tip
