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Energy-efficient annealing process for amorphous/ultra-microcrystalline alloy choke coil magnetic ring

A technology of ultra-microcrystalline alloy and annealing process, which is used in magnetic core manufacturing, manufacturing tools, inductor/transformer/magnet manufacturing, etc., can solve the problem of energy-saving annealing process that has not been relatively mature technical reports, and achieve control stability problems. , the effect of saving electric energy and controlling the increase of iron loss

Inactive Publication Date: 2019-08-30
洛阳中赫非晶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are no relatively mature technical reports on the energy-saving annealing process for Fe-B-Si-Nb-Cu system amorphous-ultracrystalline alloy choke coil magnetic ring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This scheme mainly puts the choke coil magnetic ring in the vacuum cover, so that the annealing of the amorphous-supermicrocrystalline alloy choke coil magnetic ring completes the entire annealing process in a vacuum environment. The annealing process is as follows:

[0035] a) Put the formed choke magnetic ring into the annealing rack according to the size and order, hoist the annealing rack into the vacuum furnace, and close the furnace door;

[0036] b) Vacuum and maintain the vacuum at 0.1atm;

[0037] c) Turn on the power supply, set the furnace temperature at 380℃ and start heating, the heating time is controlled at 80 minutes, and the temperature is maintained for 30 minutes;

[0038] d) Start the second stage of heating, set the furnace temperature at 485℃ and start heating, the heating time is controlled at 59 minutes, and the temperature is maintained for 30 minutes;

[0039] e) Start the third stage of heating, set the furnace temperature to 525℃ and start heating, th...

Embodiment 2

[0053] a) Put the formed choke magnetic ring into the annealing rack according to the size and order, hoist the annealing rack into the vacuum furnace, and close the furnace door;

[0054] b) Vacuum and maintain the vacuum at 0.1atm;

[0055] c) Turn on the power supply, set the furnace temperature at 390℃ and start heating, the heating time is controlled at 80 minutes, and the temperature is maintained for 30 minutes;

[0056] d) Start the second stage of heating, set the furnace temperature to 483°C and start heating, the heating time is controlled at 59 minutes, and the temperature is maintained for 30 minutes;

[0057] e) Start the third stage of heating, set the furnace temperature to 522°C and start heating, the heating time is controlled at 59 minutes, and the temperature is maintained for 30 minutes;

[0058] f) Start the fourth stage of heating, set the furnace temperature at 560℃ and start heating, the heating time is controlled at 30 minutes, and the temperature is maintained...

Embodiment 3

[0070] a) Put the formed choke magnetic ring into the annealing rack according to the size and order, hoist the annealing rack into the vacuum furnace, and close the furnace door;

[0071] b) Vacuum and maintain the vacuum at 0.1atm;

[0072] c) Turn on the power, set the furnace temperature at 400℃ and start heating, the heating time is controlled at 80 minutes, and it is kept for 30 minutes after reaching the temperature;

[0073] d) Start the second stage of heating, set the furnace temperature at 482℃ and start heating, the heating time is controlled at 59 minutes, and the temperature is maintained for 30 minutes;

[0074] e) Start the third stage of heating, set the furnace temperature at 520℃ and start heating, the heating time is controlled at 59 minutes, and the temperature is maintained for 30 minutes;

[0075] f) Start the fourth stage of heating, set the furnace temperature at 555℃ and start heating, the heating time is controlled at 30 minutes, and the temperature is maintai...

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Abstract

An energy-efficient annealing process for an amorphous / ultra-microcrystalline alloy choke coil magnetic ring is provided. The choke coil magnetic ring is made of a Fe-B-Si-Nb-Cu-based amorphous / ultra-microcrystalline alloy strip. The energy-efficient annealing process mainly comprises four times of temperature-increasing annealing and two times of temperature-decreasing cooling. The amorphous / ultra-microcrystalline alloy choke coil magnetic ring subjected to the energy-efficient annealing process is completely free of internal stress and is nano-crystallized, so that a choke coil magnetic corehas high electromagnetic performance and does not increase iron loss, thereby ensuring the stability and the stress resistance of the choke coil magnetic ring, reducing the scrap phenomena caused byannealing, and thus improving the utilization rate of the amorphous / ultra-microcrystalline alloy choke coil magnetic ring. Compared with a conventional annealing process, the energy-efficient annealing process can save about 30% of electric energy per furnace, especially solves the performance fluctuation of the annealed Fe-B-Si-Nb-Cu-based amorphous / ultra-microcrystalline alloy choke coil magnetic ring, and controls the iron loss increase and stability of the choke coil magnetic ring.

Description

Technical field [0001] The invention belongs to the technical field of Fe-B-Si-Nb-Cu system amorphous-ultra-microcrystalline alloy annealing technology, and is specifically an energy-saving annealing process for amorphous-ultramicrocrystalline alloy choke magnetic rings. [0002] technical background [0003] Amorphous-ultramicrocrystalline alloy choke magnetic ring is currently domestic most Energy-saving and environmentally friendly household air conditioners, refrigerators, TVs, induction cookers and other controller components, and their choke magnetic rings main It is made of Fe-B-Si-Nb-Cu amorphous-supermicrocrystalline alloy strip. In the production process, the choke coil must undergo an annealing process to reach the performance technical requirements of the controller element. [0004] Fe-B-Si-Nb-Cu series amorphous-ultra-microcrystalline alloy strips are quenched by liquid phase to 10 6 The K / s cooling rate is prepared into an amorphous alloy strip and wound into a magne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02C21D9/40C21D1/30C21D1/773
CPCC21D1/30C21D1/773C21D9/40H01F41/022H01F41/0226
Inventor 刘学锋李高锋文九巴赵海生
Owner 洛阳中赫非晶科技有限公司
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