A kind of iron-based amorphous thin strip and its manufacturing method

An iron-based amorphous and thin strip technology, applied in the field of amorphous alloys, can solve the problem of high manufacturing cost, achieve the effects of good toughness, ultra-high saturation magnetic induction intensity, and reduce manufacturing cost

Inactive Publication Date: 2011-12-07
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of high manufacturing cost of transformer core materials currently on the market

Method used

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  • A kind of iron-based amorphous thin strip and its manufacturing method
  • A kind of iron-based amorphous thin strip and its manufacturing method
  • A kind of iron-based amorphous thin strip and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Fe, Si, boron iron (24%), C, Al are divided into Fe a Si b B c C d Al e Chemical composition ratio configuration, the manufacturing process adopts the following steps:

[0042] Step 1, configure the master alloy according to the chemical composition ratio,

[0043] Step 2, smelting the master alloy obtained in step 1,

[0044] Step 3, remelting the alloy obtained in step 2, and throwing the strip to make an amorphous thin strip,

[0045] Step 4, heat-treating the amorphous ribbon obtained in Step 3,

[0046] Step five, perform performance test on the product obtained in step four.

[0047] When operating the step 1, according to Fe a Si b B c C d Al e Calculate the number of atoms required for the target composition of the corresponding raw materials, and use a physical balance to weigh and prepare the Fe a Si b B c C d Al e master alloy;

[0048] When operating the step 2, put the master alloy obtained in the step 1 into an intermediate frequency vacuum...

Embodiment 2

[0057] Iron-based amorphous ribbons according to chemical composition Fe 82 Si 5.5 B 11.5-e C 1 Al e (e≤1) Proportioning is carried out, and the obtained alloy is processed according to the method of Example 1, and its saturation magnetic induction Bs and iron loss P2 / 20k are measured. The saturation magnetic induction Bs varies with the Al content as figure 1 As shown, the change of iron loss with Al content is as figure 2 shown. from Figure 1 ~ Figure 2 It can be seen that it is appropriate to control the amount of Al addition within 1 atomic percent.

Embodiment 3

[0059] Iron-based amorphous ribbons according to chemical composition Fe 80 Si 7 B 11-e C 2 Al e (e≤1) Proportioning is carried out, and the obtained alloy is processed according to the method of Example 1, and its saturation magnetic induction Bs and iron loss P2 / 20k are measured. The saturation magnetic induction Bs varies with the Al content as image 3 As shown, the change of iron loss with Al content is as Figure 4 shown. from Figure 3 ~ Figure 4 It can be seen that the addition of Al significantly increases the saturation magnetic induction Bs, and Bs increases with the increase of Al content; the iron loss of the alloy with Al addition is significantly lower than that without Al addition, and decreases with the increase of Al content.

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Abstract

The invention discloses an iron-based amorphous thin strip, wherein the composition of the iron-based amorphous thin strip is calculated by atomic percentage, and its chemical composition is expressed as FeaSibBcCdAle, wherein a, b, c, d, e The atomic percent contents are respectively: 76≤a≤85, 3≤b≤10, 7≤c≤13, 0.01≤d≤2, 0.01≤e≤1, and a+b+c+d+e=100. c+d is preferably 10.5-14, c+e is preferably 9.5-12.5, and its chemical composition expression is preferably Fe80Si9B9C1.5Al0.5 or Fe80Si9B10C0.5Al0.5. The saturation magnetic induction Bs of the iron-based amorphous strip is not less than 1.5T. And it can show low yield strength, and it can be bent at 180° without breaking during the process of elastic deformation. The invention has excellent soft magnetic performance and low manufacturing cost, and the prepared iron-based amorphous strip has good toughness and large width. It can be completely used as a replacement material for the iron core of an intermediate frequency transformer, and is suitable for large-scale manufacturing.

Description

Technical field: [0001] The invention relates to an amorphous alloy, in particular to an iron-based amorphous thin strip and a manufacturing method thereof. Background technique: [0002] Amorphous alloys prepared by rapid solidification have unique mechanical properties, magnetic properties, corrosion resistance and electrical properties due to their lack of long-range atomic order structure. Therefore, the study of amorphous alloy materials has become an important one in the field of material research. Iron-based amorphous materials in amorphous alloys are widely used in various technical fields such as transformers and electromagnetic transducer elements due to their excellent magnetic properties and low cost. [0003] Currently. Intermediate frequency transformer core, the use frequency is from 400Hz to 20kHz, it can be used as aviation power transformer, railway control system transformer, mechanical parts quenching equipment transformer, laser power transformer, inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02
Inventor 邹永清秦振武李楠庞靖
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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