Top rated nanocrystalline toroidal core manufacturer and supplier 2022? Transmart Industrial Limited is an one stop solution provider for magnetic cores and chokes, supplying various magnetic cores in Nanocrystalline , Amorphous and Silicon steels, supplying soft magnetic materials, soft magnetic cores, toroidal transformer, nanocrystalline cores, toroidal core, electrical and electronic components as well as other materials for transformers and associated industries. See more information on nanocrystalline cores. Transmart electrical steel suppliers & manufacturers offer a variety of solutions based on soft magnetic materials. The soft magnetic materials series has become a hot product of Transmart Industrial. In this category you will find different kinds of soft magnetic materials that we produce, including traditional Electrical steel ( Silicon steel) raging from 0.05mm to 0.50mm thickness, latest high performance materials of Nanocrystalline foil and Amorphous ribbon.
We know that the actual transformer always works in AC state, and the power loss is not only on the resistance of the coil, but also in the iron core magnetized by alternating current. Usually, the power loss in the iron core is called “iron loss”. The iron loss is caused by two reasons, one is “hysteresis loss” and the other is “eddy current loss”. Hysteresis loss is the iron loss caused by the hysteresis phenomenon in the magnetization process of the iron core. The size of this loss is directly proportional to the area surrounded by the hysteresis loop of the material. The hysteresis loop of silicon steel is narrow, and the hysteresis loss of transformer core made of silicon steel is small, which can greatly reduce its heating degree.
This is because the sheet iron core can reduce another iron loss – “eddy current loss”. When the transformer works, there is alternating current in the coil, and the magnetic flux generated by it is of course alternating. This changing magnetic flux produces an induced current in the iron core. The induced current generated in the iron core flows in a ring in a plane perpendicular to the magnetic flux direction, so it is called eddy current. Eddy current losses also heat the core. In order to reduce the eddy current loss, the iron core of the transformer is stacked with silicon steel sheets insulated from each other, so that the eddy current passes through a small section in the narrow and long circuit, so as to increase the resistance on the eddy current path; At the same time, the silicon in silicon steel increases the resistivity of the material and reduces the eddy current. rolled silicon steel sheet is selected. It is cut into long pieces according to the size of the required iron core, and then overlapped into “day” shape or “mouth” shape. In principle, in order to reduce eddy current, the thinner the silicon steel sheet, the narrower the spliced strip, and the better the effect. This not only reduces the eddy current loss and temperature rise, but also saves the material of silicon steel sheet. But in fact, when making silicon steel sheet iron core. Not only from the above favorable factors, because making the iron core in that way will greatly increase the working hours and reduce the effective section of the iron core. Therefore, when making transformer iron core with silicon steel sheet, we should start from the specific situation, weigh the advantages and disadvantages and choose the best size.
As one of Transmart Industrial’s multiple product series, mumetal cores series enjoy a relatively high recognition in the market. Transmart Industrial provides diversified choices for customers. The mu-metal cores are available in a wide range of types and styles, in good quality and in reasonable price.Transmart Industrial effectively improves after-sales service by carrying out strict management. This ensures that every customer can enjoy the right to be served. Find additional information on https://www.transmart.net/.
Now, the test of magnetic core material loss of power frequency power transformer is carried out under sine wave voltage with distortion less than 2%. The actual power frequency power grid distortion is 5%. In this case, the loss of iron-based amorphous alloy increases to 106% and that of silicon steel increases to 123%. If the high-order harmonic is large and the distortion is 75% (such as power frequency rectifier transformer), the loss of iron-based amorphous alloy increases to 160% and the loss of silicon steel increases to more than 300%.
At present, up powder core occupies the main share in the high-end market. However, due to the complex manufacturing process of M, that is, powder core and the noble price of raw materials, the price of powder core remains high and the scope of application is restricted to a certain extent. In recent years, iron-based nanocrystalline soft magnetic powder core has attracted much attention because of its low price, simple preparation process and excellent performance. Its research is quite active, which is expected to replace the local use of up powder core and be applied in the field of high frequency.