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Magnetic field orientation method and device for tape casting of magnetic materials and product

A tape-casting, magnetic material technology, applied in the direction of magnetic objects, inductor/transformer/magnet manufacturing, electrical components, etc., can solve the problems of low efficiency, weak orientation ability, cumbersome installation, etc., to achieve flexible and convenient operation, high orientation efficiency , the effect of uniform intensity

Active Publication Date: 2021-04-09
广东高鑫信息股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution has complex parallel magnetic field design, heavy installation, expensive price, limited width, uneven strength of the obtained parallel magnetic field, and the use of a single magnetic force for orientation, weak orientation ability, and low efficiency, making it difficult to apply Orientation of magnetic materials such as magnetic particles and magnetic fibers

Method used

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  • Magnetic field orientation method and device for tape casting of magnetic materials and product
  • Magnetic field orientation method and device for tape casting of magnetic materials and product
  • Magnetic field orientation method and device for tape casting of magnetic materials and product

Examples

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Effect test

Embodiment 1

[0054] The magnetic field orientation device and method for tape casting of magnetic materials provided by the embodiments of the present invention are used to prepare a magnetic thin film in which magnetic fillers are oriented vertically or along the length direction of the film.

[0055] The magnetic field orientation device for tape casting of magnetic materials provided in this embodiment includes a tape casting machine and its support (not shown in the drawings), and also includes the first limiting pair of rollers 1 and the magnetic field orientation roller sequentially arranged on the support. 3, the second position-limiting pair of rolls 2, and the cast base tape 4 passing through the first position-limiting pair of rolls 1, the magnetic field orientation roll 3, and the second position-limiting pair of rolls 2 in sequence; The slurry is scraped and coated by a scraper, etc.) The cast slurry to be tape-casted, the slurry includes magnetic fillers to be oriented; in this...

Embodiment 2

[0072] The magnetic field orientation device, method and product provided by the embodiment of the present invention are basically the same as the embodiment 1, and it is used to prepare a magnetic thin film in which the orientation of the magnetic filler is perpendicular to the length direction of the film. The difference is that:

[0073] In the magnetic field orientation device for tape casting of magnetic materials provided in this embodiment, the horizontal height of the top arc section where the magnetic field orientation roller 3 is in contact with the casting base tape 4 is higher than the position where the first limiting pair of rollers 1 contacts the casting base tape 4 Horizontal height, at the arc-shaped top position of this section, the casting base belt 4 is lifted upwards, so that the casting base belt 4 forms a slope of 2 to 8° between the first limiting pair of rollers 1 and the top of the magnetic field orientation roller 3 , that is to form an uphill sectio...

Embodiment 3

[0085] The magnetic field orientation device, method and product provided by the embodiments of the present invention are basically the same as those in Embodiments 1 and 2, and are used to obtain a magnetic field in which the orientation of the magnetic filler is aligned along the length direction of the film. film. The difference is that:

[0086] In the magnetic field orientation device tape-casting of the magnetic material, the horizontal height of the top arc section of the magnetic field orientation roller 3 contacting the casting base tape 4 is higher than the horizontal height of the position where the second limiting pair of rollers 2 contacts the casting base tape 4, The casting base tape 4 is lifted up at the position of the top arc section, so that the casting base tape 4 forms a slope of 2 to 8° between the second position-limiting pair of rollers 2 and the top of the magnetic field orientation roller 3, that is, a gradient from the magnetic field is formed. The ...

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Abstract

The invention discloses a magnetic field orientation device for tape casting of magnetic materials. The magnetic field orientation device comprises a support, a first limiting pair roller, a magnetic field orientation roller, a second limiting pair roller and a tape casting base band which sequentially passes through the first limiting pair roller, the magnetic field orientation roller and the second limiting pair roller; tape casting slurry to be subjected to tape casting is carried on the tape casting base band, and the slurry comprises magnetic fillers to be oriented; the casting base band is in contact with the top arc section of the magnetic field orientation roller; the magnetic field orientation roller consists of a fixed shaft, a magnet mounting layer and a rubber sleeve layer; and the magnet mounting layer is provided with a magnetic hard magnet for performing magnetic field orientation arrangement and magnetization on each magnetic filler in the tape casting slurry. The invention further discloses a magnetic field orientation method adopting the device and a product. The magnetic materials are rearranged and oriented under the combined action of magnetic force and gravity, and the magnet is small in size, uniform in strength at all positions, higher in orientation efficiency and better in effect; and a prepared magnetic film material is large in thickness, and the width of the magnetic film material can be expanded as required.

Description

technical field [0001] The invention relates to the technical field of tape casting of magnetic fillers, in particular to a magnetic field orientation method, device and product for tape casting of magnetic materials. Background technique [0002] Magnetic film material is a strong magnetic material with a small thickness. Due to the unique characteristics of the magnetic film material, more and more applications are available. Magnetic film materials are widely used in the manufacture of computer storage, magneto-optical modulators, optical isolators and optical circulators in optical communications. [0003] Magnetic materials can obtain magnetic anisotropy by forming them in a magnetic field, thereby improving their performance. Almost all kinds of magnetic materials can be made into magnetic film materials whose composition and thickness can be controlled. However, because the magnetic film material is relatively thin, the conventional magnetic field orientation formi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F13/00H01F41/02
CPCH01F13/003H01F41/0253
Inventor 颜铄清翟文正曹粲贺君孙明科孙化海
Owner 广东高鑫信息股份有限公司
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