Precautions for operating a bell jar furnace

The operation of a bell jar furnace requires high attention to safety and process requirements. The following are precautions for operating a bell jar furnace:
1. Pre operation inspection
Electrical system inspection: Ensure that the electrical system, protective atmosphere system, water circulation system, and electrical equipment are complete and normal, and that the instruments are sensitive and reliable. This is the foundation for ensuring the safe operation of equipment.
Furnace body inspection: Check whether the circuit system of the bell jar furnace outer cover is normal, whether the base pipeline is unobstructed, and whether the water seal system is in good condition. These checks help prevent equipment from malfunctioning during operation.
2. Furnace installation and atmosphere protection
Strictly follow the process requirements when loading the furnace: pay attention to maintaining a smooth atmosphere, align the powder or film vertically when loading, and ensure that the cushion plate is flat to avoid bending or unevenness.
Sealing of Inner Cover: Ensuring that the inner cover cannot leak air is the key to maintaining a stable atmosphere inside the furnace.
3. Operating environment and safety
Flammable material management: Flammable materials are not allowed to be placed around the stove to prevent fires.
Smoking prohibited: Smoking is strictly prohibited during operation to prevent fire or poisoning accidents.
4. Ignition and temperature rise
Exhaust protection: Before ignition, exhaust protection must be carried out and hydrogen purity analysis must be conducted. If there is no explosion sound for 3 times, ignition and start-up can be carried out. This is to prevent residual flammable gases in the furnace from causing explosions.
Ignition operation: When igniting, it is necessary to stand on the side of the furnace door to prevent flames from directly spraying onto the body.
Heating up according to process requirements: During the heating process, it is necessary to strictly follow the process requirements to ensure accurate temperature control.
5. Out of the oven and subsequent processing
Out of furnace operation: When out of furnace, extinguish the fire and shut off the hydrogen. Wear heat-resistant gloves during operation to prevent burns.
Equipment maintenance: After the equipment is released, necessary inspections and maintenance should be carried out to ensure that it is in good condition.
6. Other precautions
Vehicle and water pump management: Vehicle and water pumps should be managed by dedicated personnel and not operated randomly. This is to prevent equipment malfunctions or accidents during operation.
Emergency handling: In the process of operation, if an emergency situation occurs, it should be handled immediately according to the emergency plan and reported to the superior in a timely manner.
In summary, the operation of a bell jar furnace is a complex and delicate process that requires operators to have a high sense of responsibility and professional skills. By strictly following the operating procedures and precautions, the safe operation of the bell jar furnace and the achievement of process requirements can be ensured.