The soldering circuit is particularly vulnerable to soldering ironThe oil has no stickinessWhat can be done quickly and effectively?
1. Choose an electric iron with proper power. Attention should be paid to the design of a protective circuit to reduce the oxidation of the copper head when the welding gap (when the electric iron is in heating but not used) should be designed.2, choose a good solder, such as hollow (containing rosin), buy when to look good, whether there is impurities, in addition, solder should be placed in a dry place, to prevent oxidation.3, the choice of flux, you can choose HCL low concentration solution (but volatile HCL gas harmful to human body), dissolved in Rosin alcohol solution (better than the effect of rosin alone).4, you can also learn about the principle of electroplating, first some solder dissolved in the low concentration of HCL solution, and then use the principle of electroplating, the weldment to be plated with a layer of solder, and then to the circuit board welding, the effect is good.5, note: when welding, as far as possible to keep yourself away from volatile gas; careful burns the skin and desktop.
The oxide layer on the weld surface must be removed, and then solder with a resin or solder paste. Tin plated on the weld surface, facing the two welded surface, and then solder the solder and rosin with the soldering iron.
With solder paste, but after use, it is best to wipe with alcohol, so as not to corrode
