White photoelectric soldering iron constant temperature electric soldering iron
At present, there are imported white photoelectric soldering irons, domestic white photoelectric soldering irons and many imitation white photoelectric soldering irons on the market; at present, electric soldering irons have developed from ordinary electric soldering irons to temperature-adjustable electric soldering irons, and now digitally adjustable constant temperature electric soldering irons.
Introduction
The constant temperature electric soldering iron adopts high Curie temperature strip-shaped PTC constant temperature heating element inside, and is equipped with a fastening heat conduction structure. The characteristic is that it is superior to the traditional heating wire soldering iron core, heating up rapidly, energy saving, reliable work, long life and low cost. The low-voltage PTC heating core can be used in the field, which is convenient for maintenance work.
Structural principle
The structural principle of the constant temperature electric soldering iron is shown in the figure.
Technical Parameters
Working voltage: AC 110V, 220V
Surface temperature: 300+10°C
Stable power: 20~ 60W
Maximum current: ≤2A .
Dielectric strength: AC 3000V/min
Precautions
Precautions for using electric soldering iron
1. Before using the soldering iron, check whether the voltage used matches the nominal voltage of the soldering iron.
2. The electric soldering iron should be grounded;
3. After the electric soldering iron is energized, it is not allowed to knock, disassemble and install its electric heating parts arbitrarily;
4. The electric soldering iron should be kept dry, and should not be used in excessively humid or rainy environments.
5. When removing the soldering iron head, cut off the power supply;
6. After cutting off the power supply, it is best to use the residual heat to put a layer of tin on the tip of the soldering iron to protect the tip of the soldering iron;
7. When there is a colored oxide layer on the tip of the soldering iron, it can be wiped off with emery cloth, then energized, and tinned immediately;
The eight-sponge is used to collect tin slag and tin beads, and it is suitable to pinch it just so that the water does not come out;
9. Do "5S" well before welding, and do "5S" after welding.
Soldering iron temperature setting
1. The temperature is determined by the actual use, and it is most suitable to solder one tin spot for 4 seconds. Usually observe the tip of the soldering iron, when it turns purple, the temperature setting is too high.
2. For direct plug-in electronic materials, set the actual temperature of the soldering iron tip to (330~370 degrees); for surface mount materials (SMC), set the actual temperature of the soldering iron tip to
Set to (300~320 degrees)
3. For special materials, the temperature of the soldering iron needs to be specially set.
4. Microphones, buzzers, etc. should use silver-containing tin wire, and the temperature is generally between 270 and 290 degrees.
5. When soldering large component feet, the temperature should not exceed 380 degrees, but the power of the soldering iron can be increased.
