The role of automobile generator stator iron core
When the generator is in operation, the auto generator stator core is under the action of alternating magnetic field, and the hysteresis loss and eddy current loss will be generated in the auto generator stator core material, which will cause the auto generator stator core to heat up and its energy will be consumed in the form of heat. In order to reduce the hysteresis loss, the generator stator core is required to be made of silicon steel with good magnetic conductivity. In order to reduce eddy current losses, it is also necessary to insulate the silicon steel sheets from each other, and the thinner the silicon steel sheet, the better.
Theoretically, the thinner the silicon steel sheet used in the motor, the better, but too thin will increase the production cost of enterprises, and the mechanical strength will be weakened. After the thinning of the silicon steel sheet insulation layer accounted for a larger proportion, resulting in a lower stacking system, effectively reducing the effective area of the magnetic circuit. Therefore, generators generally use silicon steel sheets with a thickness of between 0.35 mm and 0.5 mm and a total thickness of the paint film on both sides of between about 0.02 and 0.025 ram.
In order to detect the operating temperature of the automotive generator stator core and stator winding during the operation of the generator. We placed thermometers in the wire groove of the stator core of the automotive generator. Most of the generators in general use resistance type pyrometer. This is a non-inductive winding resistance coil, the use of metal at different temperatures have different resistance characteristics, to indirectly reflect the temperature change, the higher the temperature, the higher the resistance value.
Check the thermometer must be in accordance with a certain location and number, placed in the back of the car generator stator core, the bottom of the wire groove, the upper and lower layer of the wire rod directly, etc.. Generally, the temperature measuring resistor is buried in a special line and led through a shielded wire. In recent years, with the continuous improvement of the process, the line of the upper and lower wire rod uses a whole pad bar, whose installation and removal is the same as the ordinary pad bar, greatly simplifying the operation process.
Carbon fiber tube winding mold forming process
Carbon fiber tube production process is one of the more mature production methods, the quality of carbon fiber tube products made by this process is better than other processes.
Precautions for daily use of the stator
The daily use of the stator winding machine has been a headache for people, then Taizhou Yangnuo Mould Co. First, the structure of the stator and rotor Stator winding machine is simple and convenient, and can be used for punching and cutting tensile test pieces and other test pieces of various shapes.
How much do you know about the chassis suspension? Is the difference between the torsion beam and the multi-link?
So independent suspension must be independent? Some multi-links are not purely independent suspensions if strictly differentiated as required. Because the independent suspension is based on the fact that the two wheels operate independently and do not interfere with each other, but in some models, in order to prevent the lateral displacement of the independent suspension, a lateral stabilizer bar is added between the two wheels.
Top ten common brake system failures and solutions
Whether the brake system is fault-free or not directly determines our life safety. Its performance cannot be determined because the production design has been fixed. We must ensure that it can operate normally without failure. So what are the faults that the brake system often causes? What are the symptoms when you brake?