How to solve the common failure problems in medium frequency melting furnace?

Medium frequency melting furnace is a common metal melting equipment, widely used in metal smelting, casting and heat treatment industry. However, intermediate frequency melting furnace may have some common failure problems during daily use, affecting the normal work of the furnace. Some common failure problems and their solutions are described below.

Power failure Power failure is one of the common problems of medium frequency melting furnace. The main manifestation is that the power supply can not be turned on or off, or can not produce enough current and voltage. This may be caused by damaged power supply components, loose or broken connecting wires, and so on.

Solution:

Check the working condition of the power supply components, such as the rectifier, inverter and power semiconductor components, etc., and replace them promptly if damage is found.

Check whether the connection line is tight and firm, if found loose or broken, it should be reconnected or replaced.

Water-cooling failure The medium frequency melting furnace usually adopts water-cooling to dissipate heat to ensure the normal operation of the furnace and power supply system. If the water-cooling system fails, it will lead to high furnace temperature and damage to the furnace body and power supply components.

Solution:

Check whether the cooling water supply is normal, make sure the water flow and pressure meet the requirements.

Clean the cooling water piping and radiator to prevent water and dirt from clogging the cooling system.

Regularly check the valves, pumps and pipelines of the water cooling system to ensure that they work properly.

Leakage of the furnace body The furnace body of the medium frequency melting furnace usually consists of the bottom and the shell, and if there is a leakage problem in the furnace body, it will affect the normal operation of the melting and the protective layer.

Solution:

Check the sealing performance of the furnace bottom and shell, if water leakage is found, the seals should be repaired or replaced in time.

Check the cooling water system of the furnace body to ensure that the cooling water flows normally to prevent the furnace body from leaking due to overheating.

Furnace lining breakage The furnace lining of medium frequency melting furnace is the part that directly contacts the high temperature metal, if the furnace lining is broken, it will lead to metal penetration and affect product quality.

Solution:

Regularly inspect the furnace lining for breakage and replace the lining if found.

Use high quality refractory material as furnace lining to increase its heat resistance and corrosion resistance.

Temperature control system failure Medium frequency melting furnace is usually equipped with a temperature control system for controlling the furnace temperature. If the temperature control system fails, it will lead to high or low furnace temperature.

Solution:

Check the working status of the temperature sensor and temperature controller, and replace them in time if faults are found.

Adjust the parameters of the temperature control system to ensure that the furnace temperature is stable near the set value.

Induction Coil Failure The medium frequency melting furnace generates a magnetic field through the induction coil to heat the metal. If the induction coil fails, it will lead to uneven furnace temperature or unable to heat.

Solution:

Check the connection status of the induction coil to ensure that the connection is firm and the resistance is normal.

Check the insulation of the induction coil and replace it promptly if it is found to be broken.

Control cabinet failure Medium frequency melting furnace is usually equipped with a control cabinet for controlling the operation of the furnace and power supply system. If the control cabinet fails, the melting furnace cannot be started or stopped.

Solution:

Check the electrical components and connecting lines inside the control cabinet and repair or replace them promptly if faults are found.

Clean the control cabinet regularly to ensure that the environment in which it works is clean and dry.

In short, the common failure problems of medium frequency melting furnace can be prevented and solved by regular maintenance and repair. At the same time, replacing high-quality parts and strengthening the maintenance of the furnace body can prolong the service life of the melting furnace and improve the working efficiency.