Common faults and solutions of bell jar furnace

The bell jar furnace may encounter various malfunctions during operation, which are usually related to temperature control, atmosphere management, equipment mechanical performance, and improper operation. Here are some common faults and solutions for bell jar furnaces:
1. Temperature control malfunction
①. Abnormal temperature
Performance: Excessive or insufficient temperature can affect the quality of the sintering process.
reason:
The heating element is damaged.
Temperature sensor malfunction.
Control system issues.
resolvent:
Regularly check the working status of the heating element and replace it promptly if it is damaged.
Verify the accuracy of the temperature sensor to ensure that it can accurately reflect the temperature inside the furnace.
Check and optimize the control system to ensure its stable operation.
②. Poor temperature uniformity
Performance: Uneven temperature distribution inside the furnace affects product quality.
reason:
The layout of heating elements is unreasonable.
Furnace design or insulation material issues.
resolvent:
Optimize the layout of heating elements to ensure even distribution of heat within the furnace.
Check and replace aging insulation materials to improve the insulation performance of the furnace.
2. Atmosphere management malfunction
①. Abnormal atmosphere
Performance: The atmosphere inside the furnace does not meet the process requirements, resulting in abnormal chemical reactions during the sintering process.
reason:
Atmosphere control system malfunction.
Gas leakage.
The purity of the atmosphere is insufficient.
resolvent:
Regularly check the atmosphere control system to ensure its normal operation.
Check and repair gas leakage points to maintain the stability of the furnace atmosphere.
Ensure the use of high-purity atmosphere gas to avoid impurities from affecting the sintering process.
3. Equipment mechanical failure
①. Furnace lifting malfunction
Performance: The furnace body cannot be lifted or there are abnormalities during the lifting process.
reason:
The lifting mechanism is malfunctioning.
The furnace body is tilted or unbalanced.
resolvent:
Check the motor, transmission device, braking system and other components of the lifting mechanism to ensure their normal operation.
Adjust the balance state of the furnace body to ensure its stability during the lifting process.
②. Low fan speed
Performance: Insufficient fan speed, affecting the circulation of atmosphere and temperature uniformity inside the furnace.
reason:
The power supply voltage or current of the electric motor is insufficient.
The fan impeller or bearing is severely worn.
Excessive load inside the furnace or failure to burn completely.
resolvent:
Check if the power lines, power, and current are normal, adjust the power supply to ensure that the fan motor can work properly.
Regularly inspect and repair or replace components such as fan impellers and bearings to maintain their good working condition.
Adjust the load and combustion status inside the furnace to ensure sufficient fuel combustion and reduce fan load.
4. Improper operation
Performance: Equipment malfunction or sintering quality issues caused by operational errors.
resolvent:
Strengthen the training and management of operators to ensure they are familiar with and strictly follow the operating procedures.
Regularly assess and evaluate operators to improve their operational skills and sense of responsibility.
Pay attention to observing the operating status of the equipment and changes in the sintering process during operation, and promptly detect and handle any abnormal situations.
In summary, comprehensive solutions are needed to ensure the normal operation of the equipment and stable quality of the sintering process for common faults in the bell jar furnace. Meanwhile, strengthening the daily maintenance and upkeep of equipment is also an important measure to prevent malfunctions from occurring.