As an efficient and versatile thermal tool, heat guns are widely used in various fields. However, due to their high-temperature characteristics, strict adherence to safety instructions and operating procedures is essential to prevent possible dangers and damages. The following details the safety instructions and operating procedures for heat guns.

I. Safety Instructions

1. Avoid Overheating and Fire Sources: The hot air generated by heat guns reaches high temperatures, so it is imperative to avoid directing it towards flammable objects or high-temperature items such as paper, cloth, wood, etc., to prevent fires. Additionally, it is necessary to prevent the heat gun from overheating itself. It is recommended to allow it to cool down appropriately after a period of use.
2. Prevent Burns: The hot air temperature from heat guns is extremely high. Therefore, users must avoid directing the hot air towards skin or body parts to prevent burns. It is advisable for users to wear appropriate protective gloves and clothing.
3. Use Protective Equipment: When using a heat gun, it is essential to wear suitable personal protective equipment such as protective gloves and goggles to reduce the risk of injury from hot air and flying debris.
4. Pay Attention to Electrical Safety: Ensure that the power voltage used matches the rated voltage of the heat gun and avoid using it in damp environments to prevent electric shocks and short circuits.
5. Children and Untrained Personnel Prohibited: Due to the potential dangers associated with heat guns, it is crucial to ensure that children or untrained individuals do not use them.

II. Operating Procedures

1. Inspection and Preparation: Before use, inspect the heat gun for damage, check if the power cord is intact, and ensure all components are securely fastened. Choose an appropriate nozzle based on the work requirements.
2. Power Connection and Preheating: Connect the heat gun to the power source and turn on the power switch. Adjust the temperature to a suitable range, typically recommended between 300 and 360 degrees Celsius. Adjust the airspeed to the appropriate level, generally between 7 and 8.
3. Operation Process: During operation, hold the heat gun in one hand, position the nozzle 2 to 3 centimeters above the workpiece, aim it vertically at the component, and gently shake the nozzle to ensure uniform heating of the component. The other hand can perform other auxiliary operations, such as using tweezers to pick up components.
4. Shutdown and Storage: After use, turn off the power switch, place the heat gun in a safe location, and allow it to cool before storing to avoid damage or safety issues.
5. Maintenance and Care: Regularly clean and maintain the heat gun to ensure its performance and extend its lifespan. Pay special attention to cleaning the nozzle after each use to prevent clogging and fire hazards.

In summary, although heat guns are efficient tools, strict adherence to safety instructions and operating procedures is essential during use. Only by ensuring safe and correct usage can we fully utilize their effectiveness and guarantee user safety.