Mutual inductor magnetic core iron-based amorphous alloy material

An iron-based amorphous alloy and transformer technology, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems that affect the popularization and application of non-gold alloy magnetic cores and high iron loss

Inactive Publication Date: 2018-12-04
芜湖君华材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional magnetic cores are mainly made of silicon steel sheets, which contain high content of silicon and aluminum elements, so the iron loss of silicon steel sheet magnetic cores is low; with the continuous development of non-gold alloy materials, more and more Many non-gold alloy cores have replaced silicon steel sheet cores in transformers, transformers, generators and motors. Non-gold alloy cores have excellent excitation characteristics, but silicon and aluminum in conventional non-gold alloy materials The content of elements is generally lower than that of silicon steel sheets, which leads to the problem that although most low-cost non-gold alloy cores have high saturation magnetic flux, there is a problem of high iron loss, which affects the popularization and application of low-cost non-gold alloy cores.

Method used

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specific Embodiment 1

[0011] An iron-based amorphous alloy material for a transformer magnetic core provided in this embodiment includes the following elements by mass percentage:

[0012] Silicon element 30%, aluminum element 16%, tin element 6.0%, cobalt element 2.4%, yttrium element 0.35%, molybdenum element 0.8%, gallium element 0.15%, and the balance is iron element.

[0013] The preparation method of an iron-based amorphous alloy material for a magnetic core of a transformer provided in this embodiment includes the following steps:

[0014] Step 1. After weighing silicon, cobalt, yttrium, molybdenum and gallium according to the ratio, put them into an airtight intermediate frequency induction melting furnace, then vacuumize the intermediate frequency induction melting furnace, and then heat The magnetic material is prepared by raising the raw materials to 2200° C. to fully melt and mix the raw materials to obtain the first alloy masterbatch.

[0015] Step 2. After weighing the aluminum and i...

specific Embodiment 2

[0019] An iron-based amorphous alloy material for a transformer magnetic core provided in this embodiment includes the following elements by mass percentage:

[0020] Silicon element 20%, aluminum element 13%, tin element 4.5%, cobalt element 1.9%, yttrium element 0.10%, molybdenum element 0.3%, gallium element 0.05%, and the balance is iron element.

[0021] The preparation method of the iron-based amorphous alloy material for the magnetic core of a transformer provided in this embodiment is the same as that in the specific embodiment 1.

[0022] An iron-based amorphous alloy material for a magnetic core of a transformer provided in this embodiment has a saturation flux density of 2.2 T-2.4 T and a unit iron loss of 0.15 W / kg-0.18 W / kg at 1.35 T / 50 Hz.

specific Embodiment 3

[0023] An iron-based amorphous alloy material for a transformer magnetic core provided in this embodiment includes the following elements by mass percentage:

[0024] Silicon element 33%, aluminum element 17%, tin element 5.5%, cobalt element 2.5%, yttrium element 0.55%, molybdenum element 1.1%, gallium element 0.50%, and the balance is iron element.

[0025] The preparation method of the iron-based amorphous alloy material for the magnetic core of a transformer provided in this embodiment is the same as that in the specific embodiment 1.

[0026] An iron-based amorphous alloy material for a magnetic core of a transformer provided in this embodiment has a saturation flux density of 1.9 T-2.1 T and a unit iron loss of 0.11 W / kg-0.13 W / kg at 1.35 T / 50 Hz.

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Abstract

The invention discloses a mutual inductor magnetic core iron-based amorphous alloy material comprising the elements of silicon, aluminum, tin, iron and a crystalline phase adjustment element accordingto the mass ratio of: 20-33% of silicon, 13-17% of aluminum, 4.5-6.0% of tin, 2.0-5.0% of the crystalline phase adjustment element, and the balanced being iron. The amorphous alloy material is high in contents of silicon and aluminum, is high in saturation flux with saturation magnetic density being 1.9-2.4 Tesla, and is low in iron loss, wherein the iron loss per unit weight under 1.35 Tesla/50Hz is 0.05-0.18 W/kg.

Description

technical field [0001] The invention relates to the technical field of amorphous alloy materials, in particular to an iron-based amorphous alloy material for a magnetic core of a transformer. Background technique [0002] Iron loss is an inevitable energy loss in the magnetic core of transformers, transformers, generators and motors. When the magnetic core is excited, eddy currents are generated inside, and the eddy currents generate heat that cannot be used for external work by heating the magnetic core. Traditional magnetic cores are mainly made of silicon steel sheets, which contain high content of silicon and aluminum elements, so the iron loss of silicon steel sheet magnetic cores is low; with the continuous development of non-gold alloy materials, more and more Many non-gold alloy cores have replaced silicon steel sheet cores in transformers, transformers, generators and motors. Non-gold alloy cores have excellent excitation characteristics, but silicon and aluminum in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02C22C33/06B22D11/06H01F1/153
CPCB22D11/0611C22C33/003C22C33/06C22C45/02H01F1/15325
Inventor 丁鸿飞柯强胡昌才
Owner 芜湖君华材料有限公司
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