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High magnetic permeability ni-fe soft magnetic alloy containing rare earth and its preparation method and application

A technology of soft magnetic alloy and high magnetic permeability. It is applied in the field of nickel-iron alloy and nickel-iron soft magnetic alloy. It can solve the problems of unmentioned magnetic properties, achieve good alloying effect, improve comprehensive magnetic properties and mechanical properties, and improve Effect of the original microstructure

Active Publication Date: 2015-12-02
昀诺能源科技(江苏)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Japanese application No. 55-73840 discloses a high-permeability magnetic alloy with improved wear resistance. By adding chromium, the surface wear resistance of magnetic products is improved, but the above two do not improve the magnetic properties. and

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  • High magnetic permeability ni-fe soft magnetic alloy containing rare earth and its preparation method and application

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Embodiment Construction

[0042] Below, the present invention will be further described in detail in conjunction with examples.

[0043] ingredients

[0044] According to the preparation method of the rare earth-containing high magnetic permeability Ni-Fe soft magnetic alloy of the present invention, the ingredients are distributed according to the following ingredients, and the chemical composition is by weight percentage: nickel (Ni) 40-83%, manganese (Mn) 0.38-0.56%, Silicon (Si) 0.2~4.0%, molybdenum (Mo) 3.0~5.7%, copper (Cu) 2.0~8.2%, rare earth element Re0.02~15%, Re is rare earth element gadolinium (Gd), terbium (Tb), At least one of dysprosium (Dy), samarium (Sm) and praseodymium (Pr), carbon < 0.015%, phosphorus < 0.015%, sulfur < 0.015%, the rest is iron and unavoidable impurities.

[0045] to smelt

[0046] Using a vacuum induction furnace (VIM) for semi-continuous production of electrodes and ingots, the required melting power is 575kVA, and it takes about 75 minutes to melt 1000Kg of mol...

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Abstract

The invention belongs to the field of metallic functional materials, and particularly relates to a rear earth-contained high-permeability Ni-Fe soft magnetic alloy, a preparation method and purposes thereof. The alloy as weight percentage comprises the following components: 40-83 percent nickel (Ni), 0.38-0.56 percent manganese (Mn), 0.24-4.0 percent silicon (Si), 3.0-5.7 percent molybdenum (Mo), 2.0-8.2 percent copper (Cu), 0.02-15 percent rare earth element Re in lanthanide series, carbon less than 0.015 percent, phosphorus less than 0.015 percent and sulfur less than 0.015 percent, as well as iron and inevitable impurities, which occupy the less percentage, wherein the Re is at least one of the elements among lanthanum (La), cerium (Ce), seodymium (Pr), neodymium (Nd), promethium (Pm), Samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm),Ytterbium (Yb), lutetium (Lu), Scandium (Sc) and yttrium (Y) which are the rare earth elements in the lanthanide series. According to the invention, the suitable rare earth elements are added and the components of the alloy are reasonably adjusted, the Ni-Fe alloy has good alloying effect and improves the original microscopic structure, thereby having improved integrated magnetic property and mechanical property.

Description

technical field [0001] The invention belongs to the field of metal functional materials and relates to a nickel-iron alloy, in particular to a nickel-iron soft magnetic alloy containing rare earth elements. Background technique [0002] Soft magnetic alloys belong to the category of precision alloys and are widely used in energy, transportation, environmental protection and other fields. Due to their low coercive force and high magnetic permeability properties, they are often used to make magnetic conductors, magnetic shields, rotors and stators of motors, and transformers And the iron core of the relay and the magnetic components in various communication, sensing, recording and other projects. At present, nickel-iron alloy (permalloy) has become the alloy series with the most varieties and the most complete specifications among soft magnetic alloys, and plays an important role in various industries, especially in the electronics industry. [0003] my country is rich in rar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/147C22C38/16C22C19/03C21D8/12
Inventor 白在铭白皞
Owner 昀诺能源科技(江苏)有限公司
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