What are the precautions for using a tube furnace?
When using a tube furnace, here are some things to note:
1. Installation and environment
- Install in a stable, well-ventilated and dry place, away from flammable and explosive items and strong electromagnetic fields.
- Make sure the power connection is correct and the grounding is reliable.
2. Preheating
- A new furnace or a furnace that has not been used for a long time should be fully preheated before formal use to remove moisture and impurities in the furnace.
3. Sample placement
- Use a suitable crucible or container to load the sample to avoid direct contact between the sample and the furnace tube.
- When putting in and taking out the sample, special tools should be used to prevent burns.
4. Temperature control
- Set the temperature strictly according to the process requirements and do not exceed the rated temperature of the furnace.
- Pay close attention to temperature changes to ensure accurate and stable temperature control.
5. Atmosphere control (if necessary)
- If operating under a specific atmosphere, ensure that the gas purity and flow meet the requirements.
- Pay attention to the safe use and discharge of gas.
6. Operation safety
- Wear necessary protective equipment, such as high-temperature gloves, goggles, etc.
- During the heating process, it is strictly forbidden to touch the furnace body and heating elements.
7. Shutdown and cooling
- After the experiment, the power should be turned off according to the correct procedure to allow the furnace to cool naturally and avoid forced cooling.
8. Regular maintenance
- Regularly check the condition of heating elements, thermocouples, seals and other components, and replace damaged parts in time.
- Clean the dust and debris in the furnace tube.
9. Follow the operating procedures
- Strictly follow the operating procedures provided by the manufacturer, and do not change parameters and steps at will.
10. Emergency handling
- Understand the handling methods of common faults and emergencies, such as power outages, overheating, etc.
In short, the correct use and maintenance of the tube furnace can ensure the safety of the experiment and the normal operation of the equipment, and extend its service life.
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