One of my earphones is broken. I want to weld myself,One problem with me is that the melted tin does not stick to the copper wire when soldering. The soldering tin is stuck on the iron head and the copper wire is not melted
The headset line is generally enameled wire, above a layer of insulating paint, you use a knife to scrape paint, in the method we say welding. Paint on the line is the reason why you can't get it welded. And you take the direction of the soldering iron, take away the soldering iron, solder on the welded components, forward and down solder will be taken away by the iron.
The line in the copper wire with a copper wire, and then put on the rosin, the electric iron head stick solder, upward by copper wire have solder, breakpoint on both sides are the same, then two heads together with iron point about it (I have encountered this problem, pay attention to the inside of the clear line)
If the new electric iron, need to use sandpaper to wipe off the iron, and then put the hot iron head full of rosin or eat on the tin, soldering paste, until the iron tin eat so far. Then, the welding wire net sand, with a hot iron wire to pressure or soldering paste on rosin. At this time, the wires were filled with tin, and finally the welding was successful. If the wire was on good tin, iron mill two, is good
