How to perform anti-rust treatment on stator core
2024-04-25
Generally speaking, the silicon steel sheet of the stator is coated with insulation. As long as it is not under special circumstances, its layers are not easily corroded. However, on the stamping shear surface of the stator and rotor, Fe directly interacts with air. Therefore, if anti-rust treatment is not carried out immediately after stamping, the iron core will generally have different degrees of corrosion within 1-2 weeks. However, even if anti-rust treatment is adopted, if the working environment of the motor is overtime or there is water mist, such as the motor of the plant protection machine, it is necessary to carry out special anti-rust treatment for the product; we also call it electrophoresis spraying;
Color: Black
Thickness: 0.013-0.025mm, the thickest can be 0.1mm
Anti-rust ability: can pass 24 hours salt spray test;
Motor Design:
The design of the motor will affect the core loss, especially the appropriate number of motor teeth and the number of matching magnets; at the same time, the appropriate material selection and winding parameter design will also affect the overall motor loss;
Motor speed:
According to the motor design theory, the frequency of the motor is speed * number of pole pairs/60; The eddy current loss of core loss is proportional to the square of frequency, so the higher the speed of the motor, the greater the core loss of silicon steel sheets of the same thickness or brand. This is also the reason why ultra-thin silicon steel sheets are used for high-speed motors on the market, such as 0.1mm super silicon steel; below is the typical loss value of silicon steel sheet with common thickness under different frequencies, for reference only;
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