What should be paid attention to in the use of electric soldering iron
1. How to hold the soldering iron
There are three types of grips for soldering irons.
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.
② Forward 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 and welding parts with small heat dissipation, such as welding printed circuit boards of radios and TVs and their maintenance.
2. Treatment of electric soldering iron before use
Power on to "tin" the soldering iron tip 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 oxidize and burn out, shortening its life.
Sometimes the tip of the soldering iron will be oxidized due to long-term heating, and even be "burned to death" and no longer "eat tin".
3. Precautions for using electric soldering iron
① Reasonable selection of different types of electric soldering irons according to the welding object.
② Do not hit the tip of the soldering iron arbitrarily during use to avoid damage. The steel pipe wall thickness 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.
