Amorphous anti-DC iron core and its heat treatment method

Abstract

The invention discloses a heat treatment method of non-crystal anti-direct-current iron cores. The heat treatment method comprises the steps that iron cores are classified and put in plates according to set standard; a continuous annealing furnace is preheated; the annealing time and annealing temperature of the continuous annealing furnace are set according to the weight of the iron cores; the well put iron cores are put in the continuous annealing furnace, and the continuous annealing furnace keeps the annealing temperature for iron core annealing. In the heat treatment method of the non-crystal anti-direct-current iron cores, the iron cores are firstly classified, and then the annealing time and annealing temperature of the continuous annealing furnace are set according to different weights of iron cores so that the continuous annealing furnace can conduct targeted continuous annealing on the iron cores, the temperature in the continuous annealing furnace is uniform, and it can be ensured that the annealed non-crystal anti-direct-current iron cores have higher magnetism consistency. The invention further discloses the non-crystal anti-direct-current iron cores. The products have higher magnetism consistency.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a heat treatment method for an amorphous anti-DC iron core. In addition, the present invention also provides a product produced by the heat treatment method of the above-mentioned amorphous anti-DC iron core. Background technique [0002] Amorphous anti-DC iron core is usually made by cutting the strip to the required width, winding it into the required disc or ring, and then heat-treating it. The qualified products are then cured. The strip used as raw material is mostly iron-based alloy, usually called iron core. The heat treatment of the iron core will change the atomic arrangement order of the amorphous, so that it becomes a crystal, and becomes a constant magnetic permeability, which is used for DC resistance. [0003] A typical heat treatment method is to use an ordinary annealing furnace to heat the iron core multiple times. However, since different iron cores in the s...

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Problems solved by technology

[0003] A typical heat treatment method is to use a common annealing furnace to heat the iron core multiple times. However, since different iron cores in the same batch of iron cores have different positions in the annealing furnace, the temperature of different positions inside the common annealing furnace is different. Uniformity, for example, the temperature at the furnace door is lower than that at other locations, resulting in different magnetic properties of different iron cores in the same batch of amorphous anti-DC iron cores after annealing, and the product magnetic consistency is low

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