The temperature of the multi zone rotating electric furnace used in the experiment cannot rise

The temperature of the multi zone rotating electric furnace used in the experiment cannot rise, which may be caused by power supply failure, damaged heating elements, abnormal temperature control system, furnace tube sealing problems, or incorrect process parameter settings. The following are specific reasons and solutions:

1. Power supply failure
Possible reasons: power plug not plugged in properly, power switch not turned on, damaged power cord, unstable or low power supply voltage.
resolvent:
Check if the power plug is securely plugged into the socket and if the power switch is turned on.
Use a multimeter to check if the power line is energized and eliminate the possibility of a circuit break or short circuit.
Confirm whether the power supply voltage is stable and ensure that it is within the rated voltage range of the electric furnace. If the voltage is too low, adjust the power supply or use a voltage regulator.

2. Heating element damaged
Possible reasons: Heating elements (such as heating wires and heating tubes) are damaged or aged, resulting in insufficient heating power.
resolvent:
Check if the heating element is damaged or aged, and if necessary, use a multimeter to measure the resistance value and compare it with the normal range.
If the heating element is damaged, it needs to be replaced with a new one, and it is important to choose a model that is compatible with the original equipment.

3. Abnormal temperature control system
Possible cause: Damage to the temperature controller, temperature sensor, or their wiring, resulting in temperature control failure.
resolvent:
Check if the temperature controller is working properly, including display screen, button response, etc.
Check if the temperature sensor is damaged or detached, ensuring that the sensor is connected correctly and in good condition.
If the temperature controller or temperature sensor is damaged, new components need to be replaced and the temperature needs to be recalibrated.

4. Sealing problem of furnace tube
Possible reason: The furnace tube is not tightly sealed, causing heat loss or atmosphere leakage, which affects the heating effect.
resolvent:
Check the sealing parts of the furnace tube, such as sealing rings, flanges, etc., for aging or damage.
If there is a problem with the sealing part, new sealing materials or components need to be replaced to ensure good sealing of the furnace tube.

5. Process parameter setting error
Possible reasons: set temperature too low, heating rate too fast or too slow, insufficient insulation time, etc.
resolvent:
Reset process parameters such as temperature, heating rate, and holding time according to experimental requirements.
Ensure that the set temperature is higher than the current actual temperature, and check if the temperature rise rate and other parameters are set correctly.