A process for increasing iron content in amorphous iron-silicon-boron alloy strip

Abstract

The invention relates to a technological method for increasing the content of iron in a thin amorphous Fe-Si-B alloy strip. The method is characterized by comprising the steps as follows: S1, the decomposition temperature of nonmetallic atomic clusters in Fe-Si-B alloy melt is calculated; S2, the temperature for mainly forming the first neighborhood relation between iron atoms and nonmetallic elements in the Fe-Si-B alloy melt is calculated; S3, the heating treatment temperature of the Fe-Si-B alloy melt is set, the Fe-Si-B alloy is heated to the temperature at which the iron atoms form the strong first neighborhood relation with silicon atoms and boron atoms; S4, the heated alloy melt is quickly cooled to the set pouring temperature and is quickly solidified, and the thin amorphous solid alloy strip is obtained. With the method, the purpose of increasing the content of iron in the thin amorphous Fe-Si-B alloy strip can be achieved by regulating and controlling the microstructure of the amorphous Fe-Si-B alloy, so that the saturation magnetic induction intensity of the thin amorphous Fe-Si-B alloy strip can be increased.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal functional materials, and in particular relates to a process method for increasing iron content in amorphous iron-silicon-boron alloy strips. Background technique [0002] Iron-based amorphous alloy has the characteristics of high resistivity, magnetic permeability and low loss. It is a soft magnetic alloy material with excellent performance and is widely used in power transmission and distribution, electronic information, new motors and other fields. Compared with traditional silicon steel transformers, transformers made of iron-based amorphous alloys can reduce 60-80% no-load loss, and are one of the important basic materials for energy saving and emission reduction. The preparation of iron-based amorphous alloys needs to add a certain amount of non-metallic elements such as silicon and boron to control the formation of an amorphous structure during the solidification of the alloy m...

AI Technical Summary

Problems solved by technology

[0005] In summary, although the iron content of the amorphous solid Fe-Si-B alloy has an important influence on its saturation magnetic induction, increasing the Fe content in the amorphous Fe-Si-B alloy is the key to improving the saturation magnetic induction of the amorphous Fe-Si-B alloy and increasing the One of the important ways to improve the performance of amorphous iron-silicon-boron alloy devices, but there is still no effective process technology for improving the iron content of amorphous solid iron-silicon-boron alloys. It has become an amorphous solid iron-silicon-boron alloy material One of the key and important scientific and technological problems that have not been solved in the field

The main reason for the inability to effectively increase the iron content in amorphous solid Fe-Si-B alloys is the lack of methods to improve the ability of non-metallic elements to form amorphous structures during the solidification of alloy melts

The role of non-metallic elements in the formation of amorphous structures during the solidification of alloy melts is closely related to the distribution of non-metallic elements in atomic clusters in the melt. Due to the lack of technical methods to control the atomic cluster structure of FeSiB alloy melts, Therefore, it is impossible to improve the distribution of non-metallic elements in the atomic clusters of the melt by regulating the atomic cluster structure of the iron-silicon-boron alloy melt, and to enhance the ability of non-metallic elements to form an amorphous structure during the solidification of the alloy melt, and it is also impossible to improve Iron Content in Amorphous Solid Fe-Si-B Alloy

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