Understanding how to operate an electric soldering iron and its operating guidelines
One: Acquaint yourself with the electric soldering iron. This is the welding tool that is used the most frequently.
1. Purpose: To heat and fuse the welding site, electrical energy is transformed into heat energy. Whether welding is effective or not, in great part, depends on how well it is handled. In general, the heat produced and the temperature of the soldering iron tip increase with the electric soldering iron's power.
2. Electric soldering irons typically come in 20W, 25W, 30W, 40W, 60W, and 100W powers.
3. Internal and external heating options are available for electric soldering irons.
4. Frequently used tin suction devices, tweezers, electrostatic bracelets, diagonal pliers, and absorbent sponges are soldering iron auxiliary supplies.
Two: Safeguards when using an electric soldering iron
1. Setting up the soldering iron before using it.
Before used, the electric soldering iron needs to be tinned. The precise procedure is to heat the electric soldering iron, melt the soldering tin, and then evenly apply a tin wire to the tip of the soldering iron so that it is covered in tin. (Note: Smoking during the heating phase is a typical reaction for a newly purchased soldering iron.)
2. Learn the proper stance for functioning.
It can protect the operator's physical and mental wellbeing and lower workplace accidents. The distance from the soldering iron to the nose should generally be at least 20 cm, and is usually 30 cm, to minimize the harm from chemical substances that volatilize when the flux is heated and to minimize the inhalation of dangerous gases.
3. Verify that the voltage being utilized matches the soldering iron's normal voltage before beginning to solder.
4. A strong grounding should be used for the electric soldering iron.
5. Always wear an electrostatic wristband that is properly grounded when using a soldering iron. (Note: The grounding wires for the soldering iron and the static generator must be kept apart.)
6. The electric soldering iron must not be knocked, disassembled, or installed arbitrarily after it has been powered on.
7. The electric soldering iron needs to be kept dry and shouldn't be utilized in conditions that are overly muggy or rainy.
8. Disconnect the power before removing the soldering iron tip.
9. After shutting off the electricity, coat the soldering iron's tip with tin to protect it by using the heat that remains.
10. As soon as the soldering iron's tip develops a layer of black oxide, wipe it off with an absorbent sponge and immediately tin it. (Avoid using a knife to scrape)
11. Tin oxides, tin beads, and slag are all collected using the sponge. Simply to get out of the water, it is advised to pinch it with your hands.
12. You shouldn't leave the electric soldering iron on for an extended period of time without using it. This will quickly increase oxidation and limit the life of the soldering iron by causing the core to burn out. Long-term heating will also cause the soldering iron tip to oxidize, and it may even become "burned" and cease to "eat" at the same time. tin"
Three: Solder
Solder is a fusible metal that enables component leads to be joined to the connection points on a printed circuit board. Tin (Sn) is a soft, malleable silver-white metal with a melting point of 232°C. It has stable chemical properties at room temperature, is not easy to oxidize, does not lose its metallic luster, and has strong atmospheric corrosion resistance. Lead (Pb) is a soft light blue-white metal with a melting point of 327°C. High-purity lead has strong atmospheric corrosion resistance and good chemical stability, but it is harmful to the human body. Adding a certain proportion of lead and a small amount of other metals to tin can make it low melting point, good fluidity, strong adhesion to components and wires, high mechanical strength, good conductivity, not easy to oxidize, good corrosion resistance, bright solder joints Beautiful solder, generally called solder. Solder can be divided into 15 types according to the amount of tin content, and three grades of S, A, and B according to the chemical composition of tin content and impurities. Filiform solder is commonly used in manual soldering. (There are also environmentally friendly lead-free solders that are commonly used now)
Four: Flux
Fluxes can generally be divided into inorganic fluxes, organic fluxes and resin fluxes, which can dissolve and remove oxides on the metal surface and wrap
Surround the surface of the metal to isolate it from the air and prevent the metal from oxidizing when heated; it can reduce the surface tension of the solder after melting, which is conducive to the wetting of the solder. (rosin a natural resin flux)
