Treatment of new soldering iron before use
A new soldering iron cannot be used immediately. The tip of the soldering iron must be treated before it can be used normally. That is to say, the tip of the soldering iron should be coated with a layer of solder before use. The specific method is: first use a file to file the tip of the soldering iron into a certain shape as required, then connect the power supply, when the temperature of the tip of the soldering iron rises to the point where it can melt tin, apply rosin on the tip of the soldering iron, wait for the rosin to smoke before applying Apply a layer of solder, and do this two to three times, so that the surface of the soldering iron tip is completely covered with a layer of tin and it can be used.
After the soldering iron has been used for a period of time, an oxide film will be formed on the blade surface of the soldering iron tip and its surroundings, which will make it difficult to "eat tin". At this time, the oxide film can be removed and re-plated with solder.
Adjusting the length of the soldering iron tip
After selecting the power of the soldering iron tip, it has basically met the needs of the soldering temperature, but it still cannot fully meet the needs of the components installed in the printed circuit board. For example, when welding integrated circuits and transistors, the temperature of the soldering iron tip should not be too high, and the time should not be too long. At this time, the length of the soldering iron tip inserted on the soldering iron core can be properly adjusted to control the temperature of the soldering iron tip.
