0.5 new thick copper, iron soldering welding, how to live, to the Duodawa electric iron. Now the main iron is next to the copper, there is no temperature
Such a large copper skin, it is estimated that no more than 100 can not welding
You can heat it up with an alcohol lamp or a high powered hot air gun
I am the surface area of large welding parts, is the first to find a 1 kW to two KW electric stove, electric stove put this stuff heated hot enough (the premise is not heated to the temperature of melting solder, in addition to the anti shock), and then the heating and welding, easy welding.Or you put it on the gas burner, but I haven't tried it. I'm using an electric stove.