Hello, aluminum plate is commonly used in high power LED, because good heat dissipation, so it is difficult to manual welding, first of all, you want to make sure the solder iron temperature above four baidu, method and the other is same, only is you want to put the soldering iron always on board, continued to add the tin soldering iron to the board and tin line won't melt, because heat is dispersed in the board,It's the same with soldering things to them, but instead of using tin wire, it's just heated for a long time!Simply put, keep the temperature high for a long time.

Almost all kinds of welding methods can be used for welding aluminum and aluminum alloy, but the adaptability of aluminum and aluminum alloy to various welding methods is different, each welding method has its own application occasions.Gas welding and electrode arc welding, simple equipment, easy to operate.Gas welding can be used to repair welding of aluminum sheet and castings with low welding quality requirements.Electrode arc welding can be used for repair welding of aluminum alloy castings.Inert gas shielded welding (TIG or MIG) is the most widely used welding method for aluminum and aluminum alloys.Aluminum and aluminum alloy sheet can be welded by AC argon arc tungsten welding or pulse argon arc tungsten welding.Tungsten-helium arc welding, argon-helium mixed tungsten gas shielded welding, fusion gas shielded welding and pulse fusion gas shielded welding can be used for aluminum and aluminum alloy thick plates.MGW and pulse MGW are widely used.