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Electroslag remelting method for soft magnetic alloy with high magnetic permeability and low coercive force

A technology of electroslag remelting and low coercivity, applied in circuits, magnetic objects, magnetic materials, etc., can solve problems such as unfavorable on-site construction, unstable process, high magnetic permeability, etc., to improve processing performance and improve finished products. rate, the effect of improving the alloy structure

Active Publication Date: 2018-06-05
天通(六安)新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a method for electroslag remelting of soft magnetic alloys with high magnetic permeability and low coercive force, which solves the problem of unstable process in electroslag remelting of Fe-Ni soft magnetic alloys in the prior art, which is not conducive to on-site construction The problem

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  • Electroslag remelting method for soft magnetic alloy with high magnetic permeability and low coercive force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The electroslag remelting method of high magnetic permeability and low coercive force soft magnetic alloy in the present embodiment is as follows:

[0024] (1) Preparation of self-fusing electrode rod

[0025] The ingredients of high magnetic permeability and low coercivity soft magnetic alloy self-fusing electrode rods are as follows: Ni 78.5 parts (23550g), Mo 3 parts (1050g), Mn 0.9 parts (270g), Si 0.4 parts (120g ), Fe 17.2 parts (5010g), with a total weight of 30000g, vacuum induction melting, casting into a round rod with a diameter of 110mm, and after the surface of the round rod is sanded and finished, it is a self-melting electrode rod for electroslag remelting;

[0026] (2) Electroslag remelting

[0027] The slag ratio of electroslag remelting is by weight: CaF 2 55 parts (3850g), Al 2 o 3 18 parts (1260g), 12 parts of CaO (840g), 15 parts of MgO (1050g), total weight 7000g. For electroslag remelting of soft magnetic alloys with high magnetic permeabil...

Embodiment 2

[0030] The electroslag remelting method of high magnetic permeability and low coercive force soft magnetic alloy in the present embodiment is as follows:

[0031] (1) Preparation of self-fusing electrode rod

[0032] The ingredients of high magnetic permeability and low coercive force soft magnetic alloy self-fluxing electrode rod are as follows: 78 parts of Ni (23550g), 3.8 parts of Mo (1140g), 1 part of Mn (300g), 0.4 parts of Si (120g ), Fe 16.8 parts (4740g), total weight 30000g. After vacuum induction melting, it is cast into a round rod with a diameter of 120mm. After the surface of the round rod is sanded and finished, it is a self-melting electrode rod for electroslag remelting;

[0033] (2) Electroslag remelting

[0034] The slag ratio of electroslag remelting is by weight: CaF 2 60 parts (4200g), Al 2 o 3 15 parts (1050g), 13 parts of CaO (910g), 12 parts of MgO (840g), total weight 7000g. For electroslag remelting of soft magnetic alloys with high magnetic p...

Embodiment 3

[0037] The electroslag remelting method of high magnetic permeability and low coercive force soft magnetic alloy in the present embodiment is as follows:

[0038] (1) Preparation of self-fusing electrode rod

[0039] The ingredients of high magnetic permeability and low coercive force soft magnetic alloy self-fluxing electrode rod are as follows: Ni 79.3 parts (23790g), Mo 4 parts (1200g), Mn 0.8 parts (240g), Si 0.4 parts (120g ), Fe 15.5 parts (4650g), total weight 30000g. After vacuum induction melting, it is cast into a round rod with a diameter of 140mm. After the surface of the round rod is sanded and finished, it is a self-melting electrode rod for electroslag remelting;

[0040] (2) Electroslag remelting

[0041] The ratio of slag material for electroslag remelting is by weight: CaF 2 60 parts (4060g), Al 2 o 3 14 parts (1120g), 13 parts of CaO (980g), 13 parts of MgO (840g), total weight 7000g. For electroslag remelting of soft magnetic alloys with high magnet...

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Abstract

The invention discloses an electroslag re-melting process for soft magnetic alloy with high magnetic conductivity and low coercive force. The electroslag re-melting process comprises the following steps of: manufacturing a self-fluxed electrode rod, wherein the self-fluxed electrode rod made of the soft magnetic alloy with high magnetic conductivity and low coercive force consists of the following components in parts by weight: 78-80 parts of Ni, 3-5 parts of Mo, 0.9-1 part of Mn, 0.4 part of Si and the balance Fe; and performing vacuum-induction smelting, and performing casting to form a circular rod, namely an electroslag re-molten self-refluxed electrode rod, wherein slag charge for electroslag re-melting consists of the following components in parts by weight: 55-65 parts of CaF2, 12-18 parts of Al2O3, 10-15 parts of CaO and 10-15 parts of MgO. The electroslag re-melting process disclosed by the invention can reduce segregation, can refine a structure, can reduce content of P and S elements, can reduce content of impurities and can improve distribution for the soft magnetic alloy with high magnetic conductivity and low coercive force, so that the forming property and using property of the material are improved.

Description

technical field [0001] The invention relates to the field of metallurgical technology of soft magnetic alloys, in particular to an electroslag remelting method for soft magnetic alloys with high magnetic permeability and low coercive force. Background technique [0002] Fe-Ni soft magnetic alloy is a kind of alloy with high magnetic permeability and low coercive force in weak magnetic field. It shows high magnetic permeability and low coercive force under weak magnetic field magnetization, and has Good cold working properties. By changing the content of the composition, adding one or several alloying elements (such as Mo, Cu, Cr and Ti, etc.) and adjusting the process, a variety of permalloys with different characteristics can be obtained, and there are many varieties, It is the most among soft magnetic materials. This kind of alloy is widely used in the radio electronics industry, precision instruments and meters, remote control and automatic control systems. It is mainly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/03C22C1/03H01F1/147
CPCC22C1/023C22C1/03C22C19/03C22C2202/02H01F1/14708
Inventor 张玉碧汤安胡晓阳赵永涛刘希东张俊晖
Owner 天通(六安)新材料有限公司