Tired of... For a soldering iron let me be someone else's face! Did not expect to work for other people so poor! Only know that reading is good! Please help, teach me how to use and tell me why black black? How to do?? I don't want to see others face! Thank you...
When copper or iron is heated, it produces an oxide layer, so it turns black. The process uses a sponge to fill it with water. The iron head is dipped on it, and the oxide layer loses its brightness
High temperatures lead to oxidation of the surface of the metal and therefore appear black.Usually the iron is the main part of the iron, copper and so on, and the welding head is nickel plated and the like, the first is to prevent oxidation, and the other is better tin absorption, convenient welding.When the soldering iron has been used for a long time or has been improperly maintained, the nickel coating on the welding head will be taken off, which will even corrode and expose the iron and copper body underneath. At this point the soldering iron is difficult to solder to solder, which makes soldering difficult. Therefore, after each weld, add a layer of tin to the solder on the tip of the soldering iron to prevent the iron from touching the air, thus preventing oxidation.
It is better not to use a blade or sandpaper to make the original coating of the soldering iron lose its original antioxidant. The best way is to use a dedicated sponge absorbent dip on the line, the first time to use more iron to eat some solder
