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Iron-based amorphous alloy strip, preparation method thereof and single-roller rapid quenching device for iron-based amorphous alloy strip

A technology for iron-based amorphous alloys and strips, applied in the field of iron-based amorphous alloy strips, can solve problems such as unsatisfactory customer stability, increased customer complaint rate, and fluctuations in basic performance of amorphous strips.

Active Publication Date: 2021-04-23
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the basic performance of amorphous strips has certain fluctuations, which leads to a certain gap in the quality of strips produced in the same batch, and also leads to the unsatisfactory stability of the customer during use, resulting in an increase in the rate of customer complaints

Method used

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  • Iron-based amorphous alloy strip, preparation method thereof and single-roller rapid quenching device for iron-based amorphous alloy strip
  • Iron-based amorphous alloy strip, preparation method thereof and single-roller rapid quenching device for iron-based amorphous alloy strip
  • Iron-based amorphous alloy strip, preparation method thereof and single-roller rapid quenching device for iron-based amorphous alloy strip

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preparation example Construction

[0034] The present invention also provides a preparation method for obtaining a continuous and stable iron-based amorphous alloy strip texture, comprising the following steps:

[0035] The iron-based amorphous alloy molten steel in the molten state is sprayed on the cooling roller through the nozzle for rapid cooling to obtain the iron-based amorphous alloy strip;

[0036] The strip spray nozzle includes a strip spray port arranged in the center, an oxygen replenishment port arranged on the periphery of the strip spray port, and a combustible gas injection port arranged on the periphery of the oxygen supplement port;

[0037] The 360° direction of the spray nozzle is provided with an annular fire spray head;

[0038] A first grinding wheel, a gas cooling injection device and a second grinding wheel are arranged in the rotation direction of the cooling roller, and the gas cooling injection device is arranged between the first grinding wheel and the second grinding wheel; the fi...

Embodiment 1

[0059] In terms of atomic percentage, the chemical composition is Fe a Si b B c C d m f The molten steel in the molten state of the iron-based amorphous alloy is rapidly cooled on the cooling roll through the spray nozzle under different process conditions, that is, the molten steel in the molten state is rapidly quenched by a single roll to obtain an iron-based amorphous alloy with a width specification of 142mm and a thickness of 27μm. Crystalline alloy strip; Wherein process condition 1 is the example process condition of the present invention, and process condition 2 is conventional process condition;

[0060] Process condition 1: In the process of single-roll rapid quenching, a ring-shaped flame nozzle with nozzle nozzle is installed within the 360° range of the nozzle nozzle, and the temperature of the nozzle nozzle is fully controlled, and each nozzle has an independent switch; at the same time The spray nozzles are arranged in a circular air gap, the outermost is t...

Embodiment 2

[0079] In order to verify the influence of the method of the present invention on the texture, further experimental verification is carried out by means of cross experiment.

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Abstract

The invention provides an iron-based amorphous alloy strip which has continuous and stable grains. Areas, with the grains, of the roller attaching face and the free face of the iron-based amorphous alloy strip are larger than or equal to 95%, and the grain interval is 1.5-4.0 mm. The invention further provides a preparation method of the iron-based amorphous alloy strip. Furthermore, the invention further provides a single-roller rapid quenching device for the iron-based amorphous alloy strip. By stably controlling casting environment of a melting pool, reducing the roughness degree of the surface of a cooling roller and further improving the surface quality of the cooling roller, uniform, stable and continuous appearing of the grains of the iron-based amorphous alloy strip is achieved, and finally improvement of performance is benefited.

Description

technical field [0001] The invention relates to the technical field of iron-based amorphous alloy strips, in particular to an iron-based amorphous alloy strip, a preparation method thereof, and a single-roll rapid quenching device for the iron-based amorphous alloy strip. Background technique [0002] Iron-based amorphous strips have excellent soft magnetic properties and can be used as iron core materials for distribution transformers; Reduce the no-load loss of the transformer. On the other hand, the preparation process of traditional silicon steel sheets requires Compared with several process links and dozens of processes, the production process of iron-based amorphous strip is simpler and the production energy consumption is small, so iron-based amorphous strip is called "double energy-saving material". [0003] However, the basic performance of amorphous strips has certain fluctuations, which leads to a certain gap in the quality of strips produced in the same batch, a...

Claims

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Application Information

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IPC IPC(8): C22C45/02C22C1/02B22D11/06B22D11/22B22D11/10
Inventor 李晓雨刘红玉王玲庞靖杨东
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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