Unlock instant, AI-driven research and patent intelligence for your innovation.

Iron-based amorphous strip and preparation method thereof

An iron-based amorphous and amorphous strip technology, applied in the field of amorphous alloys, can solve the problems of high noise, low thermal stability, and high iron core loss, and achieve the effects of low noise and high thermal stability

Active Publication Date: 2019-01-04
山东海瑞得新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The iron-based amorphous strips in the prior art have the following defects: the current general working temperature is lower than 150°C, and the thermal stability is low; the iron core loss of single-phase transformer core is high, and the noise is large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 An iron-based amorphous strip and its preparation method

[0024] Preparation:

[0025] Step 1. Smelting

[0026] The raw materials used are renewable resources, such as waste steel and transformer iron cores, etc., which are re-melted to make the composition contain 92% iron, 4% boron, 3% silicon and 1% carbon.

[0027] SCR 12-pulse intermediate frequency series power supply melting furnace is used for melting, and argon gas is used to protect molten steel during melting. The heating temperature of the melting furnace is 1250°C; the power of the melting furnace is 3000kw, and the capacity of the melting furnace is 6 tons; the melting time is 50-60min;

[0028] During smelting, the electric furnace induction coil is used to magnetically stir the molten iron to facilitate slag removal and degassing, and the frequency of the electric furnace is 500Hz.

[0029] Step 2. Keep warm

[0030] The SCR 12-pulse intermediate frequency series power supply heat preserv...

Embodiment 2

[0037] Example 2 An iron-based amorphous strip and its preparation method

[0038] Preparation:

[0039] Step 1. Smelting

[0040] The raw materials used are renewable resources, such as waste steel and transformer iron cores, etc., which are re-melted to make the composition reach 92% iron, 2% boron, 3.2% silicon, 1% carbon, and 0.1% chromium.

[0041] SCR 12-pulse intermediate frequency series power supply melting furnace is used for melting, and argon gas is used to protect molten steel during melting. The heating temperature of the melting furnace is 1250°C; the power of the melting furnace is 3000kw, and the capacity of the melting furnace is 6 tons; the melting time is 50-52min.

[0042] During smelting, the electric furnace induction coil is used to magnetically stir the molten iron to facilitate slag removal and degassing, and the frequency of the electric furnace is 500Hz.

[0043] Step 2. Keep warm

[0044] The SCR 12-pulse intermediate frequency series power sup...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elastic modulusaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Curie pointaaaaaaaaaa
Login to View More

Abstract

The invention provides an iron-based amorphous strip. Renewable resources, waste steel and transformer iron cores serve as raw materials of the iron-based amorphous strip, and the raw materials are smelted again, so that the iron content reaches 90-93%, the boron content reaches 2-4%, the silicon content reaches 3-5%, and the carbon content reaches 0.5-2%. The preparation method of the iron-basedamorphous strip includes the step of smelting, wherein the smelting temperature is 1200-1250 DEG C, the power of a smelting furnace is 2800-3200 kw, the capacity of the smelting furnace is 5-6 tons, and the smelting time is 50-60 minutes. According to the iron-based amorphous strip, the saturation magnetic induction Bs is greater than 1.6 T, the maximum magnetic permeability is greater than 720000H / m, the iron loss is 0.16 W / kg, the elastic modulus is 105 GPa, the Vickers hardness is 900 kg / mm<2>, and the Curie temperature is 415 DEG C.

Description

technical field [0001] The invention relates to an iron-based amorphous strip material and a preparation method thereof, belonging to the technical field of amorphous alloys. Background technique [0002] Amorphous alloy, or metallic glass, is a new type of material that came out in the 1970s. It is a solid alloy (thin strip) obtained by forming molten steel into a thin strip with a thickness of 30 microns by using rapid cooling technology. It is different from the crystalline structure in which atoms are arranged regularly in cold-rolled silicon steel materials. It is this alloy whose atoms are in an amorphous structure that is arranged randomly, so that it has a narrow B-H circuit and has the characteristics of high magnetic permeability and low loss; at the same time The irregular atomic arrangement of amorphous alloys restricts the free passage of electrons, resulting in a resistivity 2-3 times higher than that of crystal alloys, which is also conducive to reducing eddy ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02B22D11/06
CPCB22D11/0611C22C45/02
Inventor 滕晓群隋建都
Owner 山东海瑞得新材料科技有限公司