How the LED lamp patch welded to the PCB plug-in board (except the ordinary electric iron is too slow and I mass) with what method or welding tool
If the aluminum substrate reflow, then you can also use the hot plate. How much is the mass do you, if you do not want to make a cast equipment 500W with large iron or iron heating, aluminum plate, but must pay attention to the speed, remove immediately after welding.
The aluminum substrate market price is generally 8 points (1.5mm thick), the device power is not for you, the thermal conductivity of the board is not high it can also lower. Reflow machines do not use, small to a few thousand. A large iron line is denoted by.LED if there is no need to use aluminum the substrate, with ordinary plate on the line, with a hot-air gun slowly blowing. The two can also operate more tired, eye to eye to hand to hand, otherwise the high temperature will make some devices. We are a small amount of fees (dozens of pieces) test in this way, the batch machine to produce. It is LED lighting please use the aluminum substrate.
Solder patch components, ready to solder paste, buy a box of solder paste. Then buy a 5 ml syringe and add the solder paste. Change into a 0.8-1.2MM needle. Now, point the solder joints on the solder paste. After the point is good, place the patch element on the solder joint. It doesn't need to be neatly placed. When welding, it will be automatically aligned because of the tension of the solder. All right, with off, up to 255 degrees, each blow welding components. Don't think too fast, include a baking time! Practice first and learn quickly
