Advantages of amorphous alloy core

Amorphous alloy material is a new type of alloy material that appeared in the 1970s. The international advanced ultra-fast cooling technology is used to directly cool the liquid metal at a cooling speed of 106 ° C /S to form a solid thin strip with a thickness of 0.02-0.03mm. Before it crystallizes, it solidifies. This alloying material has an irregular arrangement of atoms similar to glass and does not have the characteristic crystal structure of metals. Its basic elements are iron (Fe), nickel (Ni), cobalt (Co), silicon (Si), boron (B), carbon (C), etc. Its material has the following advantages:

a) Amorphous alloy materials do not have a crystal structure and belong to isotropic soft magnetic materials; Low magnetizing power and good temperature stability. Because of the non-orientation characteristic of amorphous alloy, direct splicing can be used to simplify the manufacturing process of iron core. b) There are no structural defects that hinder the movement of magnetic domains, and the hysteresis loss is smaller than that of silicon steel sheet;

c) The thickness of the strip is extremely thin, only 0.02-0.03mm, about 1/10 of the silicon steel sheet.

d) High resistivity, about three times that of oriented silicon steel sheet; The eddy current loss of amorphous alloy material is greatly reduced, so the unit loss is about 20% ~ 30% of the oriented silicon steel sheet. e) Low annealing temperature, about half of the oriented silicon steel sheet;

The amorphous alloy core has excellent no-load performance. The transformer made of amorphous alloy core can reduce the no-load loss by 70-80% and the no-load current by more than 50% compared with the traditional transformer. The energy saving effect is outstanding. At present, with the goal of national energy conservation and emission reduction to reduce power grid line loss, the State Grid and the Southern Power Grid have vigorously increased the proportion of amorphous alloy transformer procurement since 2012, and the proportion of amorphous alloy transformer procurement has reached more than 50%.