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What are the characteristics of modern punching die structure of SMC core of stator rotor

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What are the characteristics of modern punching die structure of SMC core of stator rotor

Date:2017-05-12 Author: Click:

Modern stamping technology is a combination of equipment, molds, materials and processes in a variety of new technology. High speed stamping technology is an advanced forming technology developed in the past 20 years. The modern stamping technology of fixed rotor iron core parts is to use high precision, high efficiency, long life, and multiple work steps to set each process on a single die.
Its structural features have the following four aspects:
1. In addition to the commonly used structures with step input modes such as step guide system, unloading system(composed of the main body of the discharge board and the partial unloading plate), feeding system and safety system(misdelivery detection device), The special structure of the motor core feeding mode: such as the counting separation device(ie, the drawing plate structure device) of the iron core automatic stacking, the structure of the iron core stacking riveting point structure and the structure of the top riveting point of the iron core stacking material, and the pinching of the falling material. Riding structure, torsion or rotary device , safety devices for large rotations, etc.;
2. Due to the common use of cemented Carbide in the main parts of the stage die and concave die materials, considering the processing characteristics and the price factors of the material, the convex die adopts a pressure plate type fixed form structure, and the concave die adopts an inlaid type structure form to facilitate assembly and replacement.
3. The mold adopts a dual-guided structure, that is, the upper and lower die seats are guided by four or more large ball guide columns, and each discharging device and the upper and lower mold seats have four small guide columns to guide the mold, ensuring that the mold has a reliable guidance accuracy;

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  4. From the technical considerations of convenient manufacturing, testing, maintenance, and assembly, the mold board adopts more lumped structures and combination structures;
The iron core used for Transformers is generally 0.35 mm thick cold-rolled Silicon steel sheets. According to the size of the required iron core, it is cut into long pieces, and then folded into "Japanese" or "mouth" shapes. In the actual production of Silicon steel core. It is not only based on the above-mentioned favorable factors, because the production of iron cores in that way will greatly increase the processing time, but also reduce the effective cross section of the iron core. Therefore, when using Silicon steel sheet to make Transformer core, we must proceed from the specific situation, weigh the pros and cons, and choose the best size.
The Transformer is made based on the principle of electromagnetic induction. There are two windings, one original windings, and one secondary windings above the closed core column. When the original windings are hypothetical on the AC power supply voltage. The original rapper current has an alternating current, and the magnetic potential is established, Under the action of the magnetic potential, a alternating main flux is generated in the core. The main flux passes through the core at the same time. The intersection chain is a secondary winding and the closure is induced by the electromagnetic induction in the first and second winding respectively.
With the development of technology and the progress of technology, we believe that the modern punching technology of the fixed rotor core will have a greater breakthrough and will develop in a more diversified direction.
The commonly used Transformer core is generally made of Silicon steel sheets. When the Transformer is working, there is an alternating current in the coil, and the flux it produces is of course alternating. This changing flux generates an induced current in the core. The induced current generated in the core circulates in a plane perpendicular to the direction of the flux, so it is called Eddy current. The eddy current loss also causes the core to heat up. In order to reduce Eddy current loss, the iron core of the Transformer is stacked with mutually insulated Silicon steel sheets, so that the eddy current is in a narrow loop and passes through a small section to increase the resistance of the vortex flow path.
In the modern era of rapid economic development, the use of Transformers has brought great convenience to people. Transformers are used in large factories or as small as one dormitory. Iron core is an indispensable part of the transformer, it is necessary to understand its simple role, thank you for your reading.


Tags:SMC铁芯

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