Electromagnetic heating die

Abstract

The invention provides an electromagnetic heating die. A magnetic conducting groove prepared from a magnetic conducting ceramic material and used for accommodating an electrified coil is formed in thedie body of the electromagnetic heating die; the electrified coil can be electrically connected with a middle-high-frequency power supply on the exterior of the die body so as to obtain a middle-high-frequency current to generate an alternating magnetic field; the electrified coil is directly arranged in the die body and placed in the magnetic conducting groove, so that the generated alternatingmagnetic field is constrained in the die body, so that a condition that the alternating magnetic field only acts on the die body is avoided. By virtue of the scheme, the middle-high-frequency alternating magnetic field is all applied to direct heating on a to-be-heated part, so that a very high heating effect is achieved, thereby highly shortening the heating time.

Description

Technical field [0001] The invention belongs to the technical field of electromagnetic applications, and specifically relates to an electromagnetic heating mold that directly heats internal parts of the mold by using an electromagnetic field. Background technique [0002] Different industries often encounter the need for heating materials, and various heating methods are also designed according to different demand scenarios. The most common heating method is to achieve heat conduction through an intermediate medium (such as heat transfer oil), that is, first heat the intermediate medium to reach a high temperature, and then contact the material to be heated with the intermediate medium, and heat the material to the required level through heat conduction Temperature, but the above heating method is applied to some special structures or special materials with low efficiency and poor uniformity. For example, when heating some materials with poor thermal conductivity, they are gener...

AI Technical Summary

Problems solved by technology

After actual tests, the inventor found that the effect of this heating method is not ideal, because the mold itself is made of metal materials, which have a strong shielding effect on electromagnetic fields, and the alternating magnetic field generated by the medium and high frequency coils outside the mold is almost It all acts on the mold of metal material, and cannot directly heat the material inside the mold

Therefore, the electromagnetic heating method in the prior art is not feasible

Images