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Heat treatment process of magnetically soft alloy iron core

A soft magnetic alloy and magnetic treatment technology, which is applied in heat treatment furnaces, heat treatment equipment, inductance/transformer/magnet manufacturing, etc., can solve the problems of small application range, affecting the magnetic effect of iron core, insufficient magnetic field strength, etc., and reach the application range Wide, improve the effect of heat treatment, optimize the effect of magnetic properties

Active Publication Date: 2011-11-23
DAYOU SCIENTFIC & TECHNICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The quality and quality of the electromagnetic properties, consistency, and corresponding working performance of the iron core are not only related to the quality and composition of the raw materials of the iron core, as well as the manufacturing process, but also related to the heat treatment of the iron core. The process is directly related, and the heat treatment of the iron core not only involves the heating temperature, heating time, heating method, and the magnetization method of the iron core, but also involves the heat treatment device including the magnetic field application device; the existing The heat treatment of the iron core usually adopts a certain method of heating and heat preservation treatment in sections, but the heating rate and the time of heat preservation have a crucial impact on the performance and quality of the iron core; and for the magnetization of the iron core, usually with A single conductor passes through the middle of the iron core, and the adjustment of its magnetic field strength is generally achieved by adjusting the thickness of the conductor (current size). On the one hand, the magnetic field strength of this magnetization method or structure is insufficient in many cases, which affects the iron core. The magnetizing effect of the core, especially for relatively large iron cores, is particularly prominent. On the other hand, this type of magnetizing device or method is relatively targeted and has a small scope of application.

Method used

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  • Heat treatment process of magnetically soft alloy iron core
  • Heat treatment process of magnetically soft alloy iron core
  • Heat treatment process of magnetically soft alloy iron core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: The soft magnetic alloy iron core of this example is an amorphous soft magnetic alloy iron core, and the temperature rise of the first stage is gradually increased from room temperature to 260, 270, or 300°C, and the holding time is 35, 45, or 58 minutes ; After the first stage of treatment, enter the second stage. The temperature rise of the second stage is to rise to 400, 420, or 450 ° C from the temperature after the first stage of treatment. , 60, or 80 minutes; after the second stage of heat preservation treatment, apply a magnetic field to the iron core at a temperature of 380, 400, or 420°C; the strength of the applied magnetic field corresponds to the size of the iron core and the corresponding performance requirements; add After the magnetic and heat preservation treatments, the iron core is naturally cooled, air-cooled, or interlayer water-cooled to room temperature before being released from the furnace.

Embodiment 2

[0019] Embodiment 2: heat treatment of iron-based nanocrystalline soft magnetic alloy iron core, in the present embodiment, the heating temperature of the first section is 360, 400, or 495 ℃, and the holding time is 35, 45, or 60 minutes, and the second section The heating temperature is 500, 520, or 565°C, and the holding time is 30, 80, or 120 minutes; the magnetic field is applied after the second section of holding at a temperature of 480, 520, or 550°C; the rest of the present embodiment includes The heating method, rate and other processing techniques are the same as those of the above-mentioned embodiments.

Embodiment 3

[0020] In Example 3 (amorphous soft magnetic alloy iron core), the heating temperature of the first section is 270 or 300°C, and the holding time is 45 or 58 minutes; the temperature of the second section is 420 or 450°C, and the holding time is 60 or 80 minutes; the temperature of the magnetic field applied to the core is 400 or 420°C.

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Abstract

The invention discloses a heat treatment process of a magnetically soft alloy iron core which is simple in structure and good in treated iron core property. The heat treatment process is simple in method and easy for implement. The heat treatment is performed in two stages, the first stage comprises warming the room temperature to 300 DEG C and performing the heat preservation for 35 minutes; thesecond stage comprises warming the temperature after the first stage of treatment to 400 DEG C, then performing the heat preservation for 60 minutes; exerting the magnetic filed on the iron core at 400 DEG C after the second stage of heat preservation treatment.

Description

technical field [0001] The invention relates to a heat treatment process for a soft magnetic alloy iron core. Background technique [0002] The quality and quality of the electromagnetic properties, consistency, and corresponding working performance of the iron core are not only related to the quality and composition of the raw materials of the iron core, as well as the manufacturing process, but also related to the heat treatment of the iron core. The process is directly related, and the heat treatment of the iron core not only involves the heating temperature, heating time, heating method, and the magnetization method of the iron core, but also involves the heat treatment device including the magnetic field application device; the existing The heat treatment of the iron core usually adopts a certain method of heating and heat preservation treatment in sections, but the heating rate and the time of heat preservation have a crucial impact on the performance and quality of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02C21D9/00
Inventor 毛圣华毛先华毛文龙金建华
Owner DAYOU SCIENTFIC & TECHNICAL CO LTD