What is the reason for the appearance of wave patterns on the surface polished with a permanent magn

The polishing indication of the motor with permanent magnet synchronization appears so more than 300 will be written like this.

I don't know what my reason is for that kind of automatic step motorcycle, you look at the news in this area, and leave some words on the Internet to take a look.

Nowadays, the world's major automobile companies are actively developing new technologies for energy conservation and emission reduction, and vigorously developing new energy vehicles. As we all know, the power source of electric vehicles has changed from the traditional internal combustion engine to the motor, and the performance of the motor directly affects the range and driving performance of the car. The basic knowledge of the motor will not be repeated here, and readers who want to know can read the author's previous article "Permanent Magnet Synchronous Motor**".

I believe that many people have seen the following one**, which also illustrates the differences in the use of drive motors in new energy vehicles in different countries. Today, let's talk about the permanent magnet synchronous motor used in Tesla's Model 3 and the reason why Tesla uses a permanent magnet synchronous motor.

The appearance of wavy lines on the polished surface proves that its strength is different when grinding, some deep and some shallow.

Glad to ask you a question, the reason for the surface here, De Bowen, is because many people don't know enough about motors.

The pool synchronous motor shows a wavy pattern on the polished surface of the grinding head.

If he showed up, it was probably because his polished surface wasn't flat.

If there is a wavy pattern on the polishing surface of the synchronous motor with a grinding head, I think you can try it, but there is a fault when you polish.

There are wavy patterns on the surface of the engraving machine

1. Servo motor.

processing speed, etc.

3. The mechanical rigidity of the machine tool is too poor, which will produce mechanical vibration.

It is not easy to achieve a mirror effect by hand polishing, so it is better to use a polishing machine.

It should be caused by two reasons, on the one hand, the holding pressure is insufficient, it is recommended that you increase the injection pressure, holding pressure, injection time, holding time, and melt amount; Then the mold temperature and material temperature are low, and the melt material. It is recommended that you increase the mold temperature and barrel temperature, appropriately shorten the molding cycle, and if it is not possible, go to consult Tairuifeng.

If the product is too thick and the glue mouth is too small, it is recommended to increase the glue mouth or change the position of the glue mouth.

Do you know the reason for TPE?

The starving ghost is hot while he entrusts the business.

It is generally believed that there are two ways of electromagnetic interference transmission: one is conduction; The other is the radiation method. In practice, interference between two devices usually involves coupling in many ways.

It is precisely because of the coupling of multiple pathways that they exist from time to time, repeatedly intersect, and jointly produce interference, which makes electromagnetic interference difficult to control.

In the control method, in addition to the use of well-known technology to suppress the propagation of interference, such as shielding, grounding, lapping, reasonable wiring and other methods, but also to take the technical treatment of avoidance and grooming, such as spatial orientation separation, frequency division and avoidance, filtering, absorption and bypass, etc., sometimes these avoidance and grooming technology is simple and ingenious, can replace the expensive and mass volume of hardware measures, receive twice the result with half the effort.

It is possible that the load is uneven, and the conditioning coefficient of the current feedback loop is asymmetrical.