Just bought an electric iron, 8 dollars, with the time is always above the accumulation of solder iron head, and solder will turn black, there is a lot of smoke, do not see the spot, smoke too much, is not to solder pads, always above in the iron head together, finally, a large pad fell suddenly, the iron head is not, is not the quality of the electric iron, the temperature is 420 degrees.
8 pieces of electric iron is very cheap, to consider is the quality and price is proportional to, this is one of them; the second is your tin silk, it is also estimated that very cheap kind. Otherwise it would not have melted at 420 degrees. Advise you in addition to the purchase of electric iron with good quality, but also consider buying good quality tin wire: Ruile Xinxi wire is good: RLS-M tin wire, not only strictly control the content of solder (welding smoke less), and in strict accordance with the national standard production. RLS-M optional model, yes:1, 50/50 (50% tin content; 50% lead content)2, 45/55 (45% tin content; 45% lead content)3, 40/60 (40% tin content; 60% lead content)The routing options are: 0.6mm, 0.8mm, 1.0mm, etc.; the package has 750 grams / volume, 800 grams / volume, and 1000 grams / volume.
If you are used to welding circuit board or electronic wire industry in the most standard is 360 degrees Celsius, the temperature is too high will be oxidized iron is too low will not use the best is 360 degrees Celsius is not good because you do not have water, water wash sponge sponge iron Duojiaxi maintenance iron and then not to change the iron head not good with the iron itself Never mind
The temperature is too high, 420 degrees are generally used for lead-free solder welding, if you are using solder, more than 300 degrees is enough. The long-term high temperature of the electric iron destruction, use effectiveness and life will greatly influence the electric iron electric iron. In addition, you are not just a invasion? Time to start using the tin in the iron head welding thin...
