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Manufacturing method for amorphous alloy core used for motor and transformer

A technology for amorphous alloys and transformers, which is applied in the field of preparation of amorphous alloy iron cores, and can solve problems such as difficulty in using press forming and argon arc welding shaping processes, low efficiency, and high requirements for molds.

Inactive Publication Date: 2015-12-02
王新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is unacceptable to use the existing blanking process to process amorphous alloy strips, which has high requirements for molds, high loss and low efficiency.
[0005] Second, due to the material properties of amorphous alloys, it is difficult to use the commonly used press molding and argon arc welding shaping processes in the preparation of silicon steel sheet iron cores, and usually only the method of lamination bonding can be selected
[0007] To sum up, the existing preparation technologies of amorphous alloy iron for motors and transformers have failed to overcome the above-mentioned challenging difficulties

Method used

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  • Manufacturing method for amorphous alloy core used for motor and transformer
  • Manufacturing method for amorphous alloy core used for motor and transformer
  • Manufacturing method for amorphous alloy core used for motor and transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1 Preparation steps of radial flux motor amorphous alloy iron core :

[0054] Such as Figure 5 As shown, the amorphous alloy strip is coated, dried, cut, and linearly pressed to form an integral linear laminated iron core blank. In the figure, the strip disk 1 equipped with a brake, the amorphous alloy strip 2, the coating tank 3, the binder coating 4, the guide roller 5 in the tank, the agitator 6, the agitator motor 7, the coating tank cover plate 8, Squeegee plate 9, oven 10, heating pipe 11, guide roller 12 above the oven, nip roller 13, rolling shear cutting position 14, cutting detection position 15, strip sheet falling after cutting 16, strip sheet collecting box 17, collecting Strip laminate 18, linear laminate 20, pressing force 21, pressing plate 22, pressing table 23, upper pressing iron 24, side dies 25 and 26.

[0055] The composition of the inorganic insulating high temperature resistant binder is (weight %): SiO 2 : 12%, Al 2 o 3 : 13%,...

Embodiment 2

[0062] Example 2 Preparation Steps of Amorphous Alloy Iron Core for Transverse Flux Motor :

[0063] Such as Figure 8 As shown, the amorphous alloy strip is coated, dried, cut, and arc pressed to form an integral arc laminated iron core blank. In the figure, the arc laminated body 30, the pressing force 31, the upper pressing plate 32, the pressing table 33, the upper pressing iron 34, and the side arc pressing dies 35 and 36.

[0064] The composition (% by weight) of the inorganic insulating high-temperature-resistant adhesive for coating is the same as that of Example 1.

[0065] The iron core of a transverse flux machine is usually segmented by phase, and the individual iron cores of the stator or rotor in each phase segment are discrete and arranged in a circular array. The arc pressing of the laminate is to reduce the waste of material in the subsequent cutting process. The arc pressing of the amorphous alloy sheet laminate usually adopts a circular arc with the sam...

Embodiment 3

[0071] Embodiment 3 Preparation steps of amorphous alloy iron core of axial flux motor:

[0072] Such as Figure 11 As shown, the amorphous alloy strip is coated, dried, and tightly wound to form a torus core blank. In the figure, a torus core blank 40 and an inner ring fixture 41 of the torus core blank.

[0073] The composition (weight %) of the inorganic insulating high temperature resistant adhesive is the same as that of Example 1.

[0074] The temperature of the oven is set at 80°C, and the surface of the strip passing through the oven can retain a certain degree of viscosity, which is convenient for winding. Increase the braking force of the strip disc 1 to realize the tight winding of the torus core blank. Continuous tight winding, the strip winding speed is 1m~1.5m / s.

[0075] Such as Figure 12 As shown, the torus iron core blank and its fixing fixture in the microwave oven. In the figure, a circular iron core blank 40, an inner ring fixture 41 of the circula...

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Abstract

The invention discloses a manufacturing method for amorphous alloy cores used for motors and transformers. The method comprises the following steps: using an inorganic insulating high-temperature resistant binder to coat double surfaces of an amorphous alloy strip, drying the strip; cutting the strip, overlaying amorphous alloy sheets in the same shape in a die in a linear or arc manner, vertically pressing to form a linear or arc stacked body iron core billet; or tightly winding the amorphous alloy strip to form an annular iron core billet; or tightly winding the amorphous alloy strip to form a track iron core billet; fixing the iron core billets in different kinds in fixtures in different structures and shapes, the fixtures being made of a microwave-transmitting and high-temperature resistant material; heating / annealing / solidifying the iron core billets in a microwave oven; and performing subsequent processing and surface coating processing on the iron core billets, to form iron cores or core components in required shapes and sizes. The method can be used to manufacture radial, transverse, and axial magnetic flux motors and amorphous alloy cores of transformers.

Description

technical field [0001] The invention relates to a method for preparing motor and transformer iron cores, in particular to a method for preparing amorphous alloy iron cores for motors and transformers. Background technique [0002] Compared with the silicon steel sheet core materials used in traditional motors and transformers, amorphous alloy strips have low loss, high magnetic permeability, high resistivity and good temperature stability. The application of amorphous alloy strip iron core in motors and transformers is of great significance for improving efficiency, saving energy and reducing consumption, and is being highly valued by countries all over the world. [0003] The preparation of amorphous alloy iron cores for motors and transformers with existing technologies still faces many challenges: [0004] First, due to the huge difference in thickness, hardness, and tensile strength between amorphous alloy and silicon steel sheet, it is difficult to use the punching pro...

Claims

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Application Information

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IPC IPC(8): H01F41/02H02K15/02
Inventor 王新
Owner 王新
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