Why is it so hard to weld? Instant welding is not firm, what should I do? What's the trick?
You can find a rosin! (playing the violin) first solder the wire to the rosin and then solder it! Again, the other side does the same thing, OK! This is easier to solder than direct welding! Then there is the smooth wire! Files can be used to burnish the surface! Are you satisfied?
Hello First look at the welding line size to choose the size of the electric iron, because higher welding line with a small iron when the temperature is not enough will be very difficult to weld, even if the welding is not tight, the main items to scrape the surface welding, solder size, some with rosin, some, if not the welding surfaces with rosin, try to see if possible
Estimate that you are a novice, wire and copper bar is very good welding, said the method, but also try more, slowly understand, or else it can not be welded.1, the wire and copper strip welding surface polished bright.2, the rosin into powder, bubble point of alcohol, that is, rosin solution (yellow thick). Apply to wires and jump together. Or directly pour rosin powder in two places, slightly hot, melt on the line. This step is necessary, or it won't be welded.3, the copper strip and wire together. The iron head slightly against the copper wire, stretch into melted, saw smoke coming out, can take away the iron, 5, 6 seconds after the solder solidification is good. Remember to solder the wires around, so it's secure.4, welding wire better. With active welding wire.
