Amorphous/nanocrystalline soft magnetic material application market profile

       Amorphous soft magnetic alloy material appeared in the 1970 s a new type of material, because of the small core loss, high resistivity, good frequency characteristic, high magnetic induction intensity, and the advantages of corrosion resistance is strong, has attracted great attention, has been hailed as a new type of green energy-saving materials in the 21st century. Its technical characteristics as follows: the ultra rapid cooling solidification technology to the steel liquid molding thin tape material time;   Manufactured using nanotechnology, nano state between macroscopic and microscopic (10-20 nm) soft magnetic material. The excellent soft magnetic properties of amorphous and nanocrystalline alloy from its special structure, no grain and grain boundary in the amorphous alloy, easy to magnetization; Nanocrystalline alloy grain size less than magnetic exchange function length, lead to the average magnetocrystalline anisotropy is very small, and by adjusting the composition, can make its magnetostrictive close to zero.

      In recent years, with the rapid development of information processing and power electronic technology, all kinds of electrical equipment to high frequency, miniaturization, energy saving. In the field of electric power, amorphous and nanocrystalline alloy were a large number of applications. The iron base amorphous alloy distribution transformer core is the biggest application. As a result of the amorphous alloy iron loss power frequency is only 1/5 ~ 1/3 of silicon steel, using amorphous alloy to replace silicon steel can reduce the no-load loss of distribution transformer 60 ﹪ and 70 ﹪. Therefore, amorphous distribution transformer as the product has a good application prospect. With nanocrystalline core can not only meet the accuracy requirements, and the price is lower than bo mo alloy. In the field of power electronics, with the high frequency inverter technology matures, the traditional high power linear power supply to replaced by high frequency switching power supply, and in order to improve the efficiency, reducing the volume and the working frequency of switch power supply is more and more high, that's one of the soft magnetic materials put forward higher requirements. Silicon steel loss at high frequency is too big, can not meet the use requirement. Ferrite, while the low loss at high frequency, under the condition of high power still exists many problems, one is saturated magnetic induction low, unable to reduce the volume of transformer; The second is the low Curie temperature, thermal stability is poor; 3 it is to make large size core yield is low, the high cost. The nanocrystalline alloy in the inverter welding power source has been widely used, in areas such as communication, electric vehicles, electrolytic plating with the application of switching power supply is in active development. In the field of electronic information, with the rapid development of computer, network and communication technology, small size, light weight, high reliability and low noise of switching power supply and the demand of the network interface device is growing, the demand is higher and higher.

      In electronic burglar system, early use of cobalt-based amorphous ribbon harmonic type security label won a lot of application in the library. Recent use of the sound of the magnetic iron nickel base amorphous strip type security label overcomes the harmonic type security label the high false alarm rate, detection area narrow, application market has extended to the super market. Can foresee, along with the development of the open service mode, as the anti-theft security of the application of amorphous alloy strip and wire will increase sharply.

       In household products, frequency conversion technology is conducive to saving energy and reducing the volume and weight, is a lot of popularity. But negative effects cannot be ignored, if can restrain the interference lack the necessary link in the inverter, there will be a lot higher harmonic injected into power grid, the grid power factor always fall. Is one of the most effective way to reduce the pollution of the power grid in the frequency converter with power factor correction (PFC) link, the key parts of them are very low loss at high frequency, saturated magnetic induction large inductive iron core. Iron-based amorphous alloy has obvious advantages in such applications, will play an important role in variable frequency electrical appliances greening. Currently using amorphous PFC inductor in frequency conversion air conditioning has become a focus.