After molding, heat treatment (anti-oxidation) is carried out for about 900 degrees and not less than 2 hours, and then pickling, electroplating (zinc, chromium, etc.), assembly. Since the magnetic field loop problem is to be considered, it is recommended that materials such as armature and pure iron coil skeleton for the shell be used. Small magnetism.

The choice of skeleton depends on the temperature resistance of your electromagnet, which is basically to withstand high temperature, up to 180 degrees Celsius. The shell should be rust-proof, anti-coating peeling, environmental protection requirements should be passed, and so on. Regarding the material selection of each part of the electromagnet, and the electromagnet performance you require, environmental protection requirements are inseparable. The vending machine motor drive requires that there is no magnetic force after the power is cut off, and the ferromagnetic substance without magnetic force will be magnetized in the magnetic field, and there will be residual magnetism after leaving the magnetic field. The residual magnetism of soft iron is basically absent, but the steel is very strong, especially the high carbon steel, which is very strong.

A conductive winding that matches its power is wound on the outside of the core, and this coil with current is magnetic like a magnet. It is usually made into a bar or hoof shape to make the core easier to magnetize. In addition, in order to make the electromagnet demagnetized immediately, we often use soft iron or silicon steel materials with faster demagnetization.