Analysis of the use of constant temperature electric soldering iron
1. How to hold the constant temperature electric soldering iron
There are three ways to hold a constant temperature electric soldering iron.
① The reverse grip method is to hold the handle of the electric soldering iron in the palm with five fingers. This method is suitable for high-power electric soldering irons to weld parts with large heat dissipation.
②Forward grip method This method is suitable for larger electric soldering irons, and this method is generally used for curved soldering iron tips.
③Pen-holding method Use the method of holding a pen to hold the electric soldering iron. This method is suitable for small-power electric soldering irons, welding parts with small heat dissipation, such as welding printed circuit boards of radios and TVs and their maintenance.
2. Treatment of constant temperature electric soldering iron before use
Power on the tip of the soldering iron to "tin" before use. First use a file knife to file the tip of the soldering iron into a certain shape as required, then connect the power supply, when the temperature of the soldering iron tip rises to the point where it can melt tin, dip the tip of the soldering iron on the rosin, wait for the rosin to smoke, and then apply a layer Soldering, so repeated two to three times, so that all the blade surface of the soldering iron tip is covered with a layer of tin and can be used. The electric soldering iron should not be energized for a long time without using it. This will easily cause the soldering iron core to burn out due to accelerated oxidation and shorten its life. At the same time, it will also cause the soldering iron tip to oxidize due to prolonged heating, and even be "burned to death" and no longer "eat tin". .
3. Precautions for using constant temperature electric soldering iron
① Reasonably select different types of electric soldering irons according to the welding objects.
②During use, do not hit the tip of the soldering iron arbitrarily to avoid damage. The thickness of the steel pipe wall of the connecting rod of the internal heating electric soldering iron is only 0.2mm, so it cannot be clamped with pliers to avoid damage. During use, it should be maintained frequently to ensure that the tip of the soldering iron is covered with a thin layer of tin.
