The electric heating tube is used in various temperatures or environments in daily life. Due to the bad operation or control, the service life of the electric heating tube is greatly shortened or there will be problems of this kind. The addition of the sensor to the electric heating tube equipment It can effectively reduce the errors in the operation, and can ensure the normal operation of the electric heating tube to a greater extent and more safety. Therefore, induction heating equipment is an indispensable and important part of the electric heating tube. For example, the flange heating tube heated in liquid, the finned electric heating tube in air dry burning, etc. need a good sensor to control.
Let us first understand what is a sensor?
Induction heater is abbreviated as inductor, which is a kind of induction coil, which can satisfy various heat treatment processes by reasonably distributing induction magnetic field. It is a key component to realize various induction heating processes, and it is also a necessary part of induction heating tube equipment. Its performance It is directly related to the quality of the heat treatment process. The inductor must be manufactured according to the heat treatment process. Due to the wide variety of electric heating tube heating processes, the specifications and varieties of the inductor are correspondingly diverse.
The working principle of the inductor is to use an alternating current to generate an alternating magnetic field. This alternating magnetic field generates an eddy current inside the metal conductor, thereby causing the metal workpiece to quickly heat up. In the process of induction heating, only the metal part of the heated workpiece is increased in temperature, and the inductor itself and the non-metal part of the heated workpiece do not generate heat.
There are several types of sensors currently used in the market:
1. Quick-change sensors for low-power equipment.
2. Diathermic induction furnace inductor: suitable for overall or partial heating of forged parts, generally made into flat and spiral tubes. According to the shape, you can choose built-in quartz tube or knotted refractory material.
3. Shaft sensor: shaft quenching sensor, scanning water spray quenching, completed in one time. Flexible installation of conductive magnets, suitable for special workpieces.
4. Machine tool rail sensor: high-precision modelling of various rail cross-sections. Accurate scanning and heating, while spray quenching, miniature guide wheel, strictly control the gap between the guide wheel and the guide rail surface, to ensure that the quenching and quenching layer is uniform.
5. Inductors for special-shaped parts: various sensors can be made according to customer requirements to meet the heat treatment requirements of customers' special-shaped parts.
