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Types of hot air guns:
- Spiral wind is mainly used for soldering and desoldering connectors, NAND, CPU, WiFi modules and other relatively large chips. It is characterized by soft airflow and low heat. Vertical wind has concentrated airflow and high heat.
- Vertical wind is mainly used for soldering and desoldering small components such as resistors and capacitors.
Proper use of hot air guns can improve repair efficiency, while incorrect use of hot air guns can damage mobile phones. Here are several safety precautions, guidelines and safety issues for using hot air guns.
Safety precautions:
Grounding: Make sure the ground wire is connected to avoid static electricity.Overheat protection: Pay attention to the automatic overheat protection switch inside the hot air soldering gun. When the overheat protection switch is activated, the machine will stop working.
Cooling: After use, let the heating tube cool down by automatically spraying cold air before unplugging the power plug.
Handle placement: Place the handle on the bracket when not in use to prevent accidental contact and damage.
Step-by-step guide:
Preparation: Connect and turn on the power supply, connect the hot air rework station to the power supply and turn on the power switch.Temperature and airflow settings: Adjust the temperature and airflow settings according to the size and type of components being processed. For example, in general, the wind speed is set to around 3 gears and the temperature is set to around 4 gears. For large chips such as NAND, the temperature is set to around 365°C-400°C and the airflow is set to around 45-653.
Desoldering large chips: Apply high-temperature tape around the components to protect them, and then use a spiral hot air gun to desolder large chips. Use a Trinocular Microscope to evenly heat the components for about 40 seconds to ensure accuracy.
Soldering components: Put the components in place first, then heat them as you would when desoldering, making sure the temperature and airflow are set correctly.
Cooling: After you finish soldering or desoldering, turn off the power switch of the hot air station, but allow it to spray cold air until it is completely cooled before unplugging the power.
Common Problems:
Damage caused by overheating: Overheating can cause solder joints to fall off, damage plastic cable holders, and even cause short circuits. Be careful to adjust the temperature and airflow settings.Component damage: Using the incorrect nozzle or overheating can damage surrounding components. Use the appropriate nozzle and settings according to the component size.
Static electricity: Ungrounded equipment can cause electrostatic discharge to damage sensitive motherboard components.
By following these detailed steps and precautions, you can effectively use a hot air gun to repair the motherboard of a mobile phone while minimizing the risks.
How to use a hot air gun to repair the iPhone Motherboard, we can learn by watching the following video: The hot air gun is a tool we often use when repairing mobile phones. It enables us to complete the welding faster and more efficiently. Below I will introduce several popular hot air guns in Phonefix stores.
1. ATTEN ST-862D Lead-Free Hot Air Gun Soldering Station
2. AiXun H310D Internet BGA Rework Station Smart Hot Air Gun
3. Quick 861DW Hot Air Rework Station Soldering Tool
Hot air gun plays a key role in mobile phone repair. In addition to the above introduction, if you want to know more about the function of hot air gun, you can follow China Phonefix to explore. Phonefix provides you with professional iPhone repair tools and accessories.
