The difference between laser soldering and soldering iron soldering
Laser soldering
1. Remote welding, contactless welding, reducing substrate load
2. Adapt to complex surfaces without interference
3. The light spot can reach micron level and can be adapted to needle tip solder joints
4. Little impact on heat around solder joints
5. The solder joint temperature is continuously adjustable from 100 to 600°C.
6. No wearing parts
soldering iron soldering
1. Must contact the surface of the substrate and put a load on the substrate
2. Due to physical contact, fine spot welding is more difficult
3. Only solder joints of a certain size can be used
4. The temperature rises slowly and the heat affected zone around the solder joint is large.
5. The welding temperature cannot be controlled stably
6. Need to frequently replace or repair the soldering iron tip
Electric ferrochrome is a heating device that has the characteristics of fast heating and light weight. Commonly used electric ferrochrome is divided into two types: internal heating type and external heating type. The ferrochrome head of the internally heated electric ferrochrome is outside the heating wire. This type of electric ferrochrome heats quickly and is light in weight. The ferrochrome head of the externally heated electric ferrochrome is inserted inside the heating wire. It heats slowly but is relatively Speak relatively firmly. Electric ferrochrome is heated directly using 220V AC power supply. The power cord and the casing are insulated, and the resistance is greater than 200M ohms.
When using a soldering iron, you must first set the temperature of the soldering iron. Generally, when using 0.8mm and 1.0mm tin wire, it should be set to about 360 degrees. During use, you should dip more tin wire, try to use the middle part of the soldering iron tip, and use the tip less. Once the tip is rotten, the soldering iron tip will basically become unusable. After using the soldering iron, not only should the power be turned off in time to avoid damage to the soldering iron due to prolonged heating, but also the residue on the soldering iron tip should be cleaned with tin wire and coated with a layer of tin to protect the soldering iron tip. Be careful to use a sponge dipped in water to clean.
The correct operating posture of holding ferrochrome can ensure the physical and mental health of the operator and reduce labor injuries. In order to reduce the harm to humans caused by chemical substances volatilized when the flux is heated and reduce the inhalation of harmful gases, in general, the distance from the soldering iron to the nose should be no less than 20cm, usually 30cm is appropriate. The counter-grip method has stable movements and is not prone to fatigue during long-term operation, so it is suitable for the operation of high-power soldering irons; the forward-grip method is suitable for the operation of low-power soldering irons or electric soldering irons with elbows; generally welding printed boards and other weldments are done on the operating table. When writing, the pen holding method is often used.
