Knowledge and Operating Standards for Electric Soldering Iron
1： Understand the electric soldering iron, which is the most commonly used tool in soldering.
1. Function: It converts electrical energy into thermal energy to heat and weld the welding point. The effectiveness of welding largely depends on how well it is controlled. Generally speaking, the higher the power and heat of an electric soldering iron, the higher the temperature of the soldering iron tip.
2. The commonly used power of electric soldering iron is: 20W; 25W; 30W;40W; 60W;100W.
3. Heating form of electric soldering iron: internal heating type; External heat type.
4. Common soldering iron accessories: soldering iron holder, tin absorber, tweezers, electrostatic wristband, diagonal pliers, absorbent sponge.
2： Precautions for using electric soldering iron
1. Preparation before using the soldering iron.
Before using the soldering iron, it is necessary to tin it. The specific method is to heat the soldering iron until it can melt the solder, and then evenly apply a layer of tin wire to the tip of the soldering iron to make it evenly coated with tin. (Note: Smoking during the heating process of a newly purchased soldering iron is a normal reaction)
2. Master the correct operating posture.
It can ensure the physical and mental health of the operator and reduce labor injuries. To reduce the harm of chemical substances emitted during the heating of solder to humans and minimize the inhalation of harmful gases, the distance from the soldering iron to the nose should generally be no less than 20cm, with a recommended distance of 30cm.
3. Before using the soldering iron, check whether the voltage used matches the nominal voltage of the soldering iron.
4. The soldering iron should be grounded and well grounded.
5. When using a soldering iron, wear an electrostatic wristband, and ensure that the wristband is well grounded. (Note: The static grounding wire and the soldering iron grounding wire must be separated)
6. After the electric soldering iron is powered on, it cannot be arbitrarily tapped, disassembled, or installed with its electric heating parts.
7. Electric soldering iron should be kept dry and should not be used in excessively humid or rainy environments.
8. When removing the soldering iron tip, turn off the power.
9. After turning off the power, use residual heat to apply a layer of tin on the soldering iron tip to protect it.
10. When there is a black oxide layer on the soldering iron tip, it can be wiped off with a water absorbing sponge and immediately tinned. (Cannot be scraped with a knife)
11. Sponge is used to collect tin slag, tin beads, and oxides, and it is advisable to pinch it by hand just enough not to release water.
12. Electric soldering irons should not be left unused for long periods of time, as this can accelerate the oxidation of the soldering iron core and burn it out, shortening its lifespan. At the same time, it can also cause the soldering iron tip to oxidize due to prolonged heating, and even be "burned to death" and no longer "eat tin"
