CN100393893C - Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus - Google Patents
Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus Download PDFInfo
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- CN100393893C CN100393893C CNB2005100309938A CN200510030993A CN100393893C CN 100393893 C CN100393893 C CN 100393893C CN B2005100309938 A CNB2005100309938 A CN B2005100309938A CN 200510030993 A CN200510030993 A CN 200510030993A CN 100393893 C CN100393893 C CN 100393893C
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Abstract
The present invention belongs to the technical field of a magnetic device, particularly to a magnetic heat treatment method and a device of the magnetic device. When the method of the present invention carries out the magnetic heat treatment, the device to be processed is fixed on a rotary shaft and is rotated, and thus, each point of the device is uniformly magnetized and uniformly heated. The existing magnetic heat treatment device is additionally provided with the rotary shaft which is driven by a motor, and the device to be processed is fixed on the front end of the rotary shaft and is arranged in a heating furnace and the magnetic field. The device is carried with the magnetic heat treatment by the present invention, and the inhomogeneity of the magnetic flux is less than 4% after measured. Compared with the magnetic device without rotation, the magnetic uniformity of the device is greatly improved, which can satisfy the operation requirement under specific conditions and enlarge the applied range of the device. The magnetic device can be used for gyro motors, laser seeker components, orientation locators, etc.
Description
Technical field
The invention belongs to the magnetic device technical field, be specifically related to a kind of magnetic field heat treatment process and device of magnetic device.
Background technology
Traditional thermomagnetic treatment is that device is placed in the stove that is added with magnetic field both at home and abroad at present, carry out static heat treatment, improve the magnetic property of device by certain magnetic field and thermal treatment temp, the magnetic device that is processed into as AlNiCo, FeCrCo, FeNi alloy etc. all adopts this method.But after handling like this, the magnetic ununiformity at each position of device often reaches about 20%.This magnetic device, particularly the magnetic device of big section can not satisfy the technical requirements of use.
Summary of the invention
The objective of the invention is to propose a kind of magnetic field heat treatment process and device that magnetizes the high magnetic device of homogeneity.
The magnetic field heat treatment process that the present invention proposes is that pending device is fixed on the turning axle, when carrying out thermomagnetic treatment, makes the device rotation.Rotating speed requires not limit, and general rotating speed is 5-60 rev/min and gets final product.Other condition is identical with original thermomagnetic treatment condition, and promptly magneticstrength is that 1000-3000Oe gets final product, and magneticstrength is the bigger the better certainly, can be more than 3000Oe.The heat treated temperature is 500-900 ℃, and the hold-time is 0.5-2 hour.
According to aforesaid method, the present invention has designed corresponding thermomagnetic treatment device.This device comprises original thermomagnetic treatment device: electro-magnet A, the magnetizing coil E on the electro-magnet A, process furnace B.In addition, be provided with turning axle C again, turning axle C is driven by motor, and the leading section of turning axle C is used for fixing pending device D and enters among the process furnace B.
During work, pending device D is fixed in the leading section of turning axle C.Motor drives turning axle C rotation, driving device D rotates in process furnace B, energising by coil E, makes electro-magnet A produce high-intensity magnetic field, device D rotates in magnetic field and heat-treats, the magnetization of its each point is all very even, and it is also even to be heated, and has improved its magnetic homogeneity greatly, especially to the device of big section, effect is more obvious.Measure magnetic flux, its ununiformity can satisfy product service requirements under specific circumstances less than 4% (ununiformity of non-rotating processing reaches 20%), has enlarged the range of application of device.This magnetic device can be used for gyromotor, laser seeker parts and azimuth positioner etc.
Description of drawings
Fig. 1 is thermomagnetic treatment apparatus structure diagram.
Number in the figure: A is an electro-magnet, and B is a process furnace, and C is a turning axle, and D is a device, and E is a coil, and F is a supply lead.
Embodiment
Further specifically describe the present invention below by embodiment.
Embodiment 1, and crossing external diameter that the FeCrCo alloy of molten processing (treatment temp is 1000-1300 ℃) makes through high temperature is the turning axle C front end that the annular device of Φ 80mm is fixed in apparatus of the present invention, carries out thermomagnetic treatment.When heating up, apply magnetic field.Device is the constantly rotation with the rotation of axle C in the magnetic field that electro-magnet A produces.Rotating speed is 10-30 rev/min, and thermal treatment temp is about 600-700 ℃, and magneticstrength is 2000-3000Oe, and soaking time is 1-2 hour.After disposing, the device cooling of coming out of the stove, through 500-600 ℃ of temper, the magnetic flux of 3 products of test, its ununiformity such as following table 1:
| Numbering | ΔΦ (%) behind the steady magnetic | ΔΦ behind the high temperature (%) | ΔΦ behind the low temperature (%) | Wen Chonghou ΔΦ (%) |
| 6-1 | 1.80 | 2.25 | 2.40 | 2.25 |
| 6-2 | 1.50 | 1.80 | 1.95 | 1.95 |
| 6-3 | 1.65 | 1.62 | 1.65 | 1.95 |
ΔΦ is the magnetic flux ununiformity,
ΔΦ is a milli weber meter pointer minimax difference of reading, and C is a milli weber instrumentation coefficient of discharge (constant), and N is the number of turn of measurement coil,
Test conditions: high temperature: 50 ℃, 2 hours.Low temperature :-40 ℃, 2 hours.Temperature shock :-60 ℃, 1 hour+70 ℃, 1 hour, 3 circulations.
Embodiment 2, device is that the diameter that materials A lNiCo or FeCoV alloy are made is the annulus of Φ 100mm, carry out thermomagnetic treatment with apparatus of the present invention, the rotating speed of axle C is 30-60 rev/min, add magnetic field during intensification, intensity is 1000-2000Oe, and thermal treatment temp is 700-850 ℃, soaking time is 1-2 hour, the magnetic flux homogeneity after the device magnetization close with table 1 result (slightly concrete).
Claims (1)
1. the rotatingfield heat treating method of a magnetic device is characterized in that pending device is fixed on the turning axle, and places process furnace, when carrying out thermomagnetic treatment, and the rotation of controls revolution axle, rotating speed is 5-60 rev/min, thereby makes the device rotation; Controlling magnetic field intensity is 1000-3000Oe, and the heat treated temperature is 500-900 ℃, and the hold-time is 0.5-2 hour; Wherein, the material of pending device is AlNiCo or FeCrCo alloy series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100309938A CN100393893C (en) | 2005-11-03 | 2005-11-03 | Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100309938A CN100393893C (en) | 2005-11-03 | 2005-11-03 | Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760379A CN1760379A (en) | 2006-04-19 |
| CN100393893C true CN100393893C (en) | 2008-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100309938A Expired - Fee Related CN100393893C (en) | 2005-11-03 | 2005-11-03 | Heat treatment method and equipment through rotating magnetic field generated from magnetic parts of an apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824512B (en) * | 2010-05-21 | 2012-09-05 | 上海世路特种金属材料有限公司 | Method for preparing permanent magnet iron core |
| CN109762979A (en) * | 2019-03-11 | 2019-05-17 | 江苏振栋精密材料科技有限公司 | A kind of novel magnetic field annealing furnace that annealing effect is good |
| USD950189S1 (en) | 2020-07-08 | 2022-05-03 | Spectrum Brands, Inc. | Spiral pet treat |
| CN113096914B (en) * | 2021-03-18 | 2023-08-01 | 钢铁研究总院 | Device and method for applying magnetic field to high-temperature heat source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440848A (en) * | 2002-02-28 | 2003-09-10 | 李碚 | Prepn process of TbDyFe-base directionally solidified alloy crystal |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440848A (en) * | 2002-02-28 | 2003-09-10 | 李碚 | Prepn process of TbDyFe-base directionally solidified alloy crystal |
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| CN1760379A (en) | 2006-04-19 |
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