New soldering iron on by welding head is initially when using tin processing, can better make welding is fluent, the tin on the processing method is: plugged in, at the time of welding head temperature reached 260 degrees Celsius, with tin wire containing the rosin evenly coated on the soldering iron head; Can be repeated several times, welding head oxidation blackened taboo to use file or sand paper polishing, because will damage the plated metal so as to greatly reduce the service life, the right approach is to use wet soldering iron sponge (not dripping) repeatedly to add tin on the sponge to wipe until the welding head back into metallic luster. The life of the welding head is determined according to the number of solder joints, and guarantee its lifespan is associated with the coating thickness of the head. The thicker the coating, the welding head life is longer, but the conduction heat efficiency will greatly reduce the soldering iron tsui life.

For the same temperature series of welding head, fine welding head, life is shorter than the life of the thick welding head. Because the welding head in the work, inevitably will be installed on the surface abrasion tip life. So fine welding head is more prone to wear so reduce soldering iron tsui life.