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Method for preparing iron-based amorphous alloy strip by reducing casting temperature of melt

An iron-based amorphous alloy and pouring temperature technology is applied in the field of reducing the melt pouring temperature to prepare iron-based amorphous alloy strips. High reproducibility and repeatability, low cost and easy implementation

Active Publication Date: 2019-09-03
江苏中科启航新材料工业研究院有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of this method is that the alloy melt needs to be treated at a high temperature of 1700°C, which easily leads to the oxidation of the metal in the melt.
[0005] In summary, although reducing the casting temperature of the iron-based alloy melt plays an important role in improving the density and surface quality of the iron-based amorphous alloy strip, there is still a lack of technical methods to effectively reduce the minimum casting temperature of the alloy melt. It is one of the key problems that cannot be solved in the field of iron-based amorphous alloy materials

Method used

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  • Method for preparing iron-based amorphous alloy strip by reducing casting temperature of melt
  • Method for preparing iron-based amorphous alloy strip by reducing casting temperature of melt
  • Method for preparing iron-based amorphous alloy strip by reducing casting temperature of melt

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Embodiment 1

[0034] to adopt Fe 76 PCSi 6 B 16 Take the amorphous alloy thin strip as an example, the number in the chemical formula is at%, and the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of the process method for preparing iron-based amorphous alloy strips by using a kind of method proposed by the present invention to reduce the melt pouring temperature are as follows:

[0035] Step 1, establish the minimum casting temperature of different composition amorphous alloy melts: (1) prepare 6 kinds of different nonmetal element compositions Fe 76 PCSi 22-X B X alloy melt, where the value of X ranges from 11 to 16, and the step size of each change of X is 1; (2) from Fe 76 PCSi 22-X B X The normal casting temperature of the melt starts at 1260°C, and the range of reducing the casting temperature is set to 10°C each time. The method of lowering the casting temperature is...

Embodiment 2

[0041] to adopt Fe 76 PCSi 11 B 11 Take the amorphous alloy thin strip as an example, the number in the chemical formula is at%, and the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of the method for preparing iron-based amorphous alloy strips by using a method of reducing the melt pouring temperature proposed by the present invention are as follows:

[0042] Step 1, establish the minimum casting temperature of different composition amorphous alloy melts: (1) prepare 6 kinds of different nonmetal element compositions Fe 76 PCSi 22-X B X alloy melt, where the value of X ranges from 9 to 21, and the step size of each change of X is 1; (2) from Fe 76 PCSi 22-X B XThe normal casting temperature of the melt starts at 1260°C, and the range of reducing the casting temperature is set to 10°C each time. By lowering the casting temperature, a series of alloy melts wit...

Embodiment 3

[0048] to adopt Fe 76 PCSi 9 B 13 Take the amorphous alloy thin strip as an example, the number in the chemical formula is at%, and the amorphous solid alloy thin strip is prepared by the high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of the method for preparing iron-based amorphous alloy strips by using a method of reducing the melt pouring temperature proposed by the present invention are as follows:

[0049] Step 1, establish the minimum casting temperature of different composition amorphous alloy melts: (1) prepare 6 kinds of different nonmetal element compositions Fe 76 PCSi 22-X B X alloy melt, where the value of X ranges from 9 to 21, and the step size of each change of X is 1; (2) from Fe 76 PCSi 22-X B X The normal casting temperature of the melt starts at 1260°C, and the range of reducing the casting temperature is set to 10°C each time. By lowering the casting temperature, a series of alloy melts wit...

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Abstract

The invention relates to a method for preparing an iron-based amorphous alloy strip by reducing casting temperature of melt, in particular to a method for preparing an iron-based amorphous alloy stripby reducing casting temperature of Fe-P-C-Si-B series alloy melt. The casting temperature of the melt is reduced by adjusting and controlling the contents of nonmetal elements Si and B in the Fe76PCSi22-XBX alloy melt, and the value of X ranges from 11 to 16. The process is further adjusted, the casting temperature of the Fe76PCSi22-XBX alloy melt can be adjusted and controlled to the lowest casting temperature, and the lowest casting temperature of the method ranges from 1150 DEG C to 1210 DEG C. The density of the iron-based amorphous alloy strip can be improved, the surface quality can beimproved, and the advantages of low implementation cost, high efficiency, high controllability and repeatability, high in technical reliability and the like are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal functional material preparation, and in particular relates to a method for preparing iron-based amorphous alloy strips by reducing the melt pouring temperature. Background technique [0002] Compared with crystalline iron-based alloys, iron-based amorphous alloys have the advantages of high magnetic permeability and low loss. When used in the manufacture of iron cores, they can significantly improve the energy-saving performance of distribution transformers and the efficiency of amorphous motors. At present, advanced electromagnetic materials with excellent comprehensive performance are widely used in many fields such as smart grid, smart manufacturing and information technology. The iron-based amorphous alloy is obtained by direct solidification of the alloy melt, and the non-equilibrium preparation method is adopted. The density and surface quality of the iron-based amorphous alloy strip are inver...

Claims

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Application Information

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IPC IPC(8): C22C38/02B22D11/06
CPCB22D11/0611C22C38/002C22C38/02
Inventor 王岩国
Owner 江苏中科启航新材料工业研究院有限公司
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