Technological method for increasing content of iron in thin amorphous Fe-Si-B alloy strip

A silicon boron alloy, amorphous iron technology, applied in the field of metal functional material preparation, can solve the problems of enhancing the ability of non-metal elements to form amorphous structures, inability to improve the distribution of non-metal elements, etc., to achieve controllability and High repeatability, high technical reliability, simple implementation effect

Active Publication Date: 2017-11-07
南京腾元软磁有限公司 +2
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  • Abstract
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  • Claims
  • Application Information

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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 met

Method used

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  • Technological method for increasing content of iron in thin amorphous Fe-Si-B alloy strip
  • Technological method for increasing content of iron in thin amorphous Fe-Si-B alloy strip
  • Technological method for increasing content of iron in thin amorphous Fe-Si-B alloy strip

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Embodiment 1

[0036] Embodiment 1: adopt amorphous solid alloy Fe 85 Si 9 B 6 Thin strip (the subscript number in the chemical formula is at%), the amorphous solid alloy Fe 85 Si 9 B 6 The thin strips are prepared by the high-speed planar flow continuous casting method commonly used in this field. Next, the specific operation steps of using the processing method of the present invention are as follows:

[0037] Step 1, calculate the temperature at which the non-metallic atomic clusters in the iron-silicon-boron alloy melt decompose: there are non-metallic atomic clusters at the initial stage of melting of the iron-silicon-boron alloy, and the non-metallic atomic clusters refer to iron atoms and non-metallic atomic clusters in the iron-silicon-boron alloy melt. Metal atoms form first-neighbor relationships; calculation of Fe using first-principles molecular dynamics simulations85 Si 9 B 6 The two-body function of non-metal atoms in the alloy melt changes with temperature, and the heat...

Embodiment 2

[0047] Embodiment 2: adopt amorphous solid alloy Fe 85 Si 9 B 6 Thin strip (the subscript number in the chemical formula is at%), the amorphous solid alloy Fe 85 Si 9 B 6 The thin strips are prepared by the high-speed planar flow continuous casting method commonly used in this field. Next, the specific operation steps of using the processing method of the present invention are as follows:

[0048] Step 1, calculate the temperature at which the non-metallic atomic clusters in the iron-silicon-boron alloy melt decompose: there are non-metallic atomic clusters at the initial stage of melting of the iron-silicon-boron alloy, and the non-metallic atomic clusters refer to iron atoms and non-metallic atomic clusters in the iron-silicon-boron alloy melt. Metal atoms form first-neighbor relationships; calculation of Fe using first-principles molecular dynamics simulations 85 Si 9 B 6 The two-body function of nonmetal atoms in the alloy melt changes with temperature, and the hea...

Embodiment 3

[0058] Embodiment 3: adopt amorphous solid alloy Fe 85 Si 9 B 6 Thin strip (the subscript number in the chemical formula is at%), the amorphous solid alloy Fe 85Si 9 B 6 The thin strips are prepared by the high-speed planar flow continuous casting method commonly used in this field. Next, the specific operation steps of using the processing method of the present invention are as follows:

[0059] Step 1, calculate the temperature at which the non-metallic atomic clusters in the iron-silicon-boron alloy melt decompose: there are non-metallic atomic clusters in the initial melting of the iron-silicon-boron alloy, and the non-metallic atomic clusters refer to the iron atoms and non-metallic atomic clusters in the iron-silicon-boron alloy melt. Metal atoms form first-neighbor relationships; calculation of Fe using first-principles molecular dynamics simulations 85 Si 9 B 6 The two-body function of non-metal atoms in the alloy melt changes with temperature, and the heating ...

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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...

Claims

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Application Information

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IPC IPC(8): C21D6/00C21D11/00C22C33/00C22C45/02
CPCC21D6/008C21D11/00C21D2201/03C22C33/003C22C45/02
Inventor 王岩国
Owner 南京腾元软磁有限公司
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