The use of medium frequency heating furnaces has brought great convenience to our daily work and life. However, improper use may cause great inconvenience to our work and life. To facilitate the majority of users in using medium frequency heating furnaces, Wanle here introduces the precautions for using AC medium frequency heating furnaces.

1. For medium frequency heating furnaces, inductors come in different lengths according to the length and diameter of the workpiece to be heated. Generally speaking, the inductor of a medium frequency furnace is relatively long (referring to the axial direction of the heated workpiece). The purpose of this design is to ensure the heating temperature and the temperature difference between the core and the surface of the workpiece when the heating rhythm of the workpiece remains unchanged.

2. At present, there are basically two forms of lining assembly for medium frequency furnace inductors: one is rammed lining, and the other is assembled lining.

3. Whether it is rammed lining or assembled lining, changes will occur after long-term work under high temperature (mainly due to thermal expansion and contraction and oxidation). If used improperly, the heated material may collide with and extrude the lining. Therefore, the lining has a certain service life, which mainly depends on the actual situation during use.

4. Once cracks occur on the lining: for rammed lining, if the crack is no more than 2mm, it must be filled with ramming material in time; if the crack exceeds 2mm, the lining must be re-rammed. For assembled lining, it must be replaced. Therefore, users must take necessary measures according to the actual situation. Never act rashly, so as to avoid unnecessary consequences such as burning out the inductor.

5. During the heating process of the medium frequency heating furnace, a lot of oxide scale peeled off from the heated workpiece will accumulate inside the inductor. If the lining is damaged, or has cracks or splits and is not cleaned in time, on one hand, it is easy to cause ignition and trigger overcurrent protection of the medium frequency power supply; on the other hand, it is easy to break down the inductor coil and cause inter-turn short circuit of the inductor. Therefore, the oxide scale in the inductor chamber must be cleaned at least once per shift (8 hours).

Luoyang Wanle Power Equipment Factory is a professional manufacturer of medium frequency electric furnaces. Your demand is the direction of our efforts. We look forward to creating better, more efficient and optimal induction heating equipment more suitable for production together with you.