Method for removing amorphous alloy iron core localized stress

A technology of amorphous alloy and local stress, which is applied in the field of eliminating local stress of amorphous alloy iron core, can solve the problems affecting the performance of iron core and the magnetic performance of amorphous iron core, and achieve the goal of removing magnetic performance and improving market competitiveness Effect

Inactive Publication Date: 2009-02-18
SHANGHAI RIGANG ZHIXIN AMORPHOUS METAL
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Problems solved by technology

However, during the rapid cooling preparation process of the amorphous strip, as well as the cutting, crimping, processing, and transportation of the strip, stress is easily generated, which affects the magnetic properties of the amorphous core.
At present, the iron core stress is generally eliminated by annealing under a magnetic field according to a specific process, which has an effect to a certain extent, but there is still a certain local stress in the iron core, which affects the performance of the iron core. It is necessary to do further work. deal with

Method used

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Embodiment

[0009] Step 1. After cutting the amorphous strip according to the procedure, use molds and related tools to perform stacking, bending, stretching, extrusion, binding and other processes to make an amorphous alloy core;

[0010] Step 2, the iron core is annealed by heat treatment under a magnetic field; after this step, about 85% to 95% of the stress is eliminated, but there are still some stresses that cannot be eliminated due to different mechanisms of generation;

[0011] Step 3. Hitting the annealed amorphous alloy iron core with a hammer with a rubber hammer head; the mechanical vibration generated after the knocking makes each layer of the iron chip move effectively, thereby achieving the purpose of releasing stress.

[0012] Manual tapping generally acts on the upper and lower end faces, surrounding sides and corners of the amorphous iron core. The force of knocking on the upper and lower end faces should be moderate, so as to avoid damage and slag falling due to the ver...

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Abstract

The invention provides a method for removing a partial stress of an amorphous alloy iron core, which is characterized in that a hammer with a soft hammerhead is used to beat the amorphous alloy iron core which is processed through quenching. The beating refers to beating the upper end surface and the lower end surface, the surrounding side surfaces and the corners of the amorphous alloy iron core. The method for removing a partial stress of an amorphous alloy iron core has the advantages of effectively removing the magnetic performance of the amorphous alloy iron core through using the mode of manual beating, thereby improving the market competition of the amorphous iron core.

Description

technical field [0001] The invention relates to a method for eliminating local stress of an amorphous alloy iron core, which is used in the manufacturing process of the amorphous alloy iron core and belongs to the technical field of methods for eliminating local stress of the amorphous alloy iron core. Background technique [0002] As an energy-saving and environment-friendly "green material", amorphous alloys are widely used due to their remarkable low iron loss performance compared with traditional silicon steel materials used in the manufacture of distribution transformer iron cores. However, stress is easily generated during the rapid cooling preparation process of the amorphous strip, as well as during strip cutting, crimping, processing, and transportation, thereby affecting the magnetic properties of the amorphous core. At present, the iron core stress is generally eliminated by annealing under a magnetic field according to a specific process, which has an effect to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00
Inventor 周永红张士岩陈飞
Owner SHANGHAI RIGANG ZHIXIN AMORPHOUS METAL
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