How to manually solder the mounted components

1、 Required equipment:

 One hot air gun, one anti-static soldering iron, one mobile phone board, one pair of tweezers, an appropriate amount of low melting point solder wire, rosin flux (flux), solder suction wire, and a suitable amount of board washing water.

Specific steps:

1. Turn on the hot air gun, adjust the air volume and temperature to the appropriate position at 230 degrees Celsius, 4-speed: feel the air volume and temperature of the air duct with your hand; Observe whether there is any unstable temperature phenomenon in the air duct due to air volume.

2. Observe that the interior of the air duct appears slightly red. Prevent overheating inside the air duct.

3. Use paper to observe the distribution of heat. Find the temperature center.

4. Application and precautions of wind nozzle.

5. Blow a resistor at the lowest temperature and remember the position where the lowest temperature twist can blow down the resistor the most.

2： White light digital display hot air gun:

1. Adjust the air volume knob so that the steel ball indicating the air volume is in the middle position.

2. Adjust the temperature control to keep the temperature reading around 380 ℃.

Attention: When the hot air gun is not used for a short period of time, it should be put into sleep mode (press the sleep switch on the handle, if there is no switch on the handle, the air nozzle will work when it is down, and sleep when it is up). If it does not work for more than 5 minutes, the hot air gun should be turned off.

3： White light 936 digital display constant temperature anti-static soldering iron:

1. The temperature is generally set at 300 ℃. If it is used for welding small components, the temperature can be adjusted downwards. If the component being welded is large or is welded on a large area of metal (such as a large copper foil on the ground wire), the temperature should be adjusted upwards appropriately.

2. The soldering iron tip must be kept white with tin, and if it turns gray, it must be treated with a special sponge.

3. When welding, do not apply force to the solder joints, otherwise it will damage the PCB board and soldering iron tip.

4. Do not turn off the power of the soldering iron for a long time to avoid idle burning.

5. Electric soldering iron is generally used for disassembling and soldering small components, handling solder joints, short circuits, soldering, and wire flying work.