The heat gun is a tool that is frequently used by electric tools.
It mainly uses the hot air blown from the core of the heating resistance wire to weld and remove the components. Today, the editor mainly talks about the safe operation and precautions of the heat gun.
1. Safe operation of hot air gun
1. Before use, you should make sure that it has been reliably grounded to prevent the static electricity on the tool from damaging the components.
2. It should be adjusted to the appropriate temperature and air volume, and the temperature and air volume of the hot air gun should be adjusted according to the shape of different nozzles and work requirements; the desoldering time of small components such as resistors and capacitors is about 5 seconds, and the general IC desoldering time is 15 seconds. The desoldering time of small BGA is about 30 seconds, and the desoldering time of large BGA is about 50 seconds.
3. When the power switch is turned on, the hot air gun must be preheated to a stable temperature before soldering. When using, the soldering iron part must be evenly heated at 1~2CM above the component and the inaccessible components; during the desoldering process, pay attention to protect the surrounding components Security.
4. Do not use excessive force when installing the nozzle, and do not hit the workbench with the soldering iron to give a strong impact to avoid damage to the heating wire and high temperature glass.
5. Be very careful when operating at high temperature. Do not use a hot air gun near flammable gas or flammable objects. Pay attention to personal safety. Turn off the power when replacing parts and leaving and wait for it to cool down. Unplug the power plug if it is not used for a long time.
6. When the work is completed, turn off the power switch. At this time, the automatic cooling period starts. Do not unplug the power plug during the cooling period.
Second, the matters needing attention of the heat gun
1. Do not use the heat gun with chemical (plastic) scrapers.
2. Please remove the dry paint from the nozzle or scraper after use to avoid fire.
3. Please use it in a well-ventilated place, because the residue removed from the paint of lead products is toxic.
4. Do not use the heat gun as a hair dryer.
5. Do not direct the hot air at people or animals.
6. When the hot air gun is used or just after use, do not touch the nozzle. The handle of the hot air gun must be kept dry, clean and away from oil or gas.
7. The hot air gun can only be stored after it has cooled down completely.
