Amorphous alloy roll-core and its production method

Abstract

This invention relates to a non-crystal alloy rolled iron-core and its manufacturing method, in which, the iron-core is formed by several single frames winded in different sections and the section shape of the butt-joint iron-core is in a pre-designed Quasi-circular, quasi-polygon or a complex shape made of non-crystal alloy material or non-crystal alloy and silicon steel ribbon, in which, the one with the largest section is taken as the master frame rolled continuously with the straight non-crystal alloy ribbon and other single frames are formed by rolling different shapes of silicon steel ribbons, besides, the butt-joint core can be either close one or an open one, can be either single phase iron-core, three phase three posts planar core or a three phase five posts planar core or a three phase solid core.

Description

technical field [0001] The invention relates to a transformer manufacturing technology, in particular to an amorphous alloy wound iron core and a manufacturing method thereof. Background technique [0002] At present, the materials for making transformer iron core mainly include silicon steel strip and amorphous alloy. Compared with silicon steel strip, amorphous alloy is a more energy-saving material for manufacturing transformer iron core. [0003] Amorphous alloy is produced by rapid rapid cooling and solidification, and its physical state is that the metal atoms are arranged in a disordered amorphous manner, which is more conducive to magnetization and demagnetization. This material is used in the transformer core, and the transformer magnetization process is very easy, thereby greatly reducing the no-load loss of the transformer. From the point of view of the reduction of the no-load loss of the transformer, the amorphous alloy strip is incomparable to all the current ...

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Problems solved by technology

[0009] c. The material of the opening part of the open iron core has to be bent many times, especially the bending of the material after annealing, which will increase the stress of the material, reduce the performance of the iron core, and increase the no-load loss

[0010] d. There are gaps at the junction of the amorphous alloy material at the opening of the open-type iron core, and the joint is not tight enough. The noise is larger than that of the closed-end iron core with the same capacity.

[0011] e. When the amorphous alloy material at the opening is closed, the amorphous alloy material is bent, and the surface of the amorphous alloy material is easy to fall off, resulting in fish scale flakes. These flakes floating in the transformer oil are likely to cause transformer failure and make the transformer decreased security

[0012] f. Because the amorphous alloy material is too thin, the iron core made of it has poor rigidity and cannot bear the weight of the wire package. Supports must be added to bear the weight of the iron core, which increases the difficulty of body assembly

[0013] g. Amorphous alloy materials are relatively expensive, and the source of materials is single, which is not conducive to mass promotion

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