Medium frequency induction furnace

There will be various problems during the use of a medium frequency induction melting furnace. Among them, electric leakage and liquid leakage are the most serious. Today, Luoyang Hongteng mainly introduces the causes and solutions of the leakage problem of the intermediate frequency induction melting furnace.

Reasons for Leakage of Medium Frequency Induction Melting Furnace

The leakage of medium frequency furnaces is mostly caused by insulation problems. For example, the insulation protection of intermediate frequency furnace shells, cooling systems, coils, and other structures is destroyed.

Shell Insulation Peeled Off

The reason for the leakage of the shell of the intermediate frequency induction melting furnace is generally that the insulation treatment of the shell is not in place. Under normal circumstances, the shell of the intermediate frequency furnace will not leak electricity.

Cooling Water Hose Leaking

The cooling water hose of the intermediate frequency furnace passes through the slideway in the furnace. If there is water leakage, it may directly contact the power supply in the furnace, resulting in a short circuit and grounding, resulting in electric leakage.

Internal Wiring Ground

If the leakage of the intermediate frequency furnace shell is only felt as a weak voltage, it may be the leakage caused by the grounding short circuit of the shell. If the leakage voltage is too high, it may be caused by the internal circuit grounding.

Turn-To-Turn Short Circuit of Induction Coil of Intermediate Frequency Furnace

Water leakage in the induction coil will cause ignition between the turns of the coil. The short circuit of the coil often occurs on small intermediate frequency furnaces. The deformation due to heat causes a short circuit between the turns. The fault manifests as a large current and a higher operating frequency than usual.

Solutions to Leakage of Intermediate Frequency Induction Melting Furnace

Leakage of Medium Frequency Induction Melting Furnace Shell

The inside of the furnace must be kept clean, and the scale in the furnace must be cleaned irregularly. If any knotted material falls off, it must be repaired with the same material and dried. In addition, focus on checking whether there is any hose leakage or water seepage. If it is a heating furnace, there are two stainless steel slides in the furnace. Use stainless steel screws to press a soft copper wire with a cross-section of not less than 6 square millimeters on the slide at one end of the furnace feed port (must be pressed firmly!), and the other end is grounded. The device can also be driven into the ground with a piece of steel brazing, a screw rod is welded on the steel brazing head, and the copper wire is pressed on the screw rod, so that the induction electricity on the stainless steel slideway can be directly shielded into the ground, ensuring the safety of the operator.

Medium Frequency Furnace Cooling Water Leakage

In order to avoid accidents during the use of the intermediate frequency furnace, the grounding should be done when connecting the power cord, and the shell should be grounded according to the general low-voltage equipment standard, and repeated grounding is allowed. The leakage of cooling water may be related to the leakage of the intermediate frequency furnace hose. It needs to be repaired and replaced in time. At the same time, ensure that the cooling water equipment is installed in an environment without severe vibration and the room temperature does not exceed 40°C. At the same time, maintain good ventilation and heat dissipation conditions in order to maintain the performance of cooling water.

Medium Frequency Furnace Coil Leakage

The leakage and short circuit of the intermediate frequency furnace coil is easy to occur during the actual operation. Because the leakage of the intermediate frequency electric furnace coil causes the coil to ignite, the repair welding of the coil should be done in time before it can run. At the same time, check whether the molten steel is adhered to the coil. It will cause the copper tube to burn through and cause leakage and a short circuit, so the steel slag should be removed in time.

At Last

The above is the solution to the leakage problem of the intermediate frequency induction melting furnace, and I hope it can help everyone. In the process of operating the intermediate frequency furnace, personal protection work should be done well. Wear insulating gloves and insulated shoes to protect yourself.