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Magnetostriction device and manufacturing method thereof

A magnetostrictive device technology, applied in the field of magnetostrictive devices and their preparation, to achieve the effects of reducing eddy current loss, broadening the application field, and reducing heat generation

Active Publication Date: 2018-07-03
GRIREM ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in practical applications, how to apply thin strip-shaped FeGa materials, make full use of its large magnetostrictive properties, and improve its high-frequency magnetostrictive properties and precision actuation stability is still a relatively difficult problem that people face. big technical problem

Method used

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  • Magnetostriction device and manufacturing method thereof
  • Magnetostriction device and manufacturing method thereof
  • Magnetostriction device and manufacturing method thereof

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Embodiment

[0040] The magnetostrictive device that the present invention relates to mainly adopts the following methods to obtain:

[0041] (1) Flat strip preparation

[0042] The flat strip is prepared by spraying the molten alloy solution onto the rotating roller by induction spraying method and rapidly cooling it.

[0043] In this preparation process, the tape composition, thickness d (in μm), and width W (in mm) are as shown in Table 1.

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Abstract

The invention discloses a magnetostriction device, which comprises a magnetostrictive belt core, and is characterized in that the magnetostrictive belt core presents a columnar structure, a spiral loop exists on the relative section, and an induction coil generating a magnetic field is wound in the circumferential direction of the belt core; and the magnetostrictive belt core is formed by windingof a flat belt material, and the lamination coefficient N is 75% to 85%. According to the magnetostriction device, the eddy current loss of the magnetostrictive material at a high frequency can be reduced, the actuation precision of the magnetostrictive material is improved, the material application field is expanded, and the utilization efficiency of the rapidly-quenched magnetostrictive materialcan also be improved.

Description

technical field [0001] The invention relates to a magnetostrictive device and a preparation method thereof, belonging to the field of magnetic material devices. Background technique [0002] Fe-Ga alloy is a new type of magnetostrictive material. Compared with traditional Terfenol-D, its biggest feature is that it has a lower saturation magnetic field and higher mechanical strength, and the saturation field is as low as 8-17kA / m , about 1 / 10 of Terfenol-D, high magnetic field sensitivity. In some applications, there is no need to use complex prestressed structures, and the device structure design is relatively simple. Fe-Ga alloy is a metal solid solution with high strength, low brittleness, high tensile strength (500MPa) and ductility, especially suitable for harsh conditions with strong vibration, impact, heavy load and strong corrosion. In addition, the alloy has high magnetic permeability, high Curie temperature, good temperature characteristics, and can be used in a w...

Claims

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Application Information

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IPC IPC(8): H01L41/12H01L41/20H01L41/47
CPCH10N35/00H10N35/85H10N35/01
Inventor 罗阳谢佳君彭海军于敦波闫文龙权宁涛杨远飞豆亚坤
Owner GRIREM ADVANCED MATERIALS CO LTD
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