CN106872065A - A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core - Google Patents
A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core Download PDFInfo
- Publication number
- CN106872065A CN106872065A CN201710217010.4A CN201710217010A CN106872065A CN 106872065 A CN106872065 A CN 106872065A CN 201710217010 A CN201710217010 A CN 201710217010A CN 106872065 A CN106872065 A CN 106872065A
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- China
- Prior art keywords
- magnetic core
- measurement apparatus
- based amorphous
- crystallization temperature
- initial crystallization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 33
- 230000008025 crystallization Effects 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 title claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 25
- 239000011162 core material Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The present invention discloses a kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core, body of heater, muffle tube, multigroup resistance wire and sample box including being provided with cavity, the muffle tube is crossed in the cavity of the body of heater, the resistance wire is arranged between the muffle tube and the body of heater, the sample box is located at the center of inside of the muffle tube, and the first thermocouple is set near the position of sample in the sample box；It is provided for controlling the second thermocouple of furnace temperature in the muffle tube.The measurement apparatus that the present invention is provided have advantages below：Closer to the heat treatment condition at scene, magnetic core initial crystallization temperature parameter and incidence relation of size etc. in heat treatment process are effectively and accurately measured, formulate factory more reasonably Technology for Heating Processing program and acted on there is provided important guiding.The measurement apparatus cost is extremely low, is conducive to large-scale production and popularization and application.
Description
Technical field
A kind of measurement the present invention relates to field of electrical components, more particularly to initial crystallization temperature of Fe-based amorphous magnetic core is filled
Put.
Background technology
In soft magnetic amorphous industry, for the technological temperature of precise control initial crystallization incipient stage, confirm Fe-based amorphous
Magnetic core starts temperature parameter during crystallization, be factory improve product percent of pass, the Technology for Heating Processing of rational magnetic core it is important
Foundation.In the case of conditional, often buy complete thermal analyzer (such as DTA or DSC) and measure, but purchase instrument cost
It is very high.
And, during these apparatus measures, required measurement sample generally only has several grammes per square metres, and the magnetic core measured starts crystallization
When temperature parameter only with measurement sample material it is relevant, it is unrelated with actual magnetic core size weight.But in factory's practical operation
Middle discovery, but magnetic core workpiece that dimensional weight different identical for material, if carrying out crystallization and thermal treatment with certain programming rate
When, the behavior that the temperature that its crystallization starts heating rises is different, and its crystallization heating process is extremely complex, for example, starting is super
Warm temperature departure, the increasing of overtemperature amplitude etc., the temperature data when magnetic core measured by above-mentioned instrument starts crystallization is only risen with reference to work
With, and scene heating often makes magnetic core that burning occurs, and influences the performance and quality of product.
Therefore, research and development more agree with produce reality, eased directly perceived and more effectively can exactly determine magnetic core in Re Chu
Initial crystallization temperature parameter during the science and engineering skill practical measurement apparatus related to size etc. are particularly necessary.
The content of the invention
Present invention defect of the prior art for more than provides a kind of survey of the Fe-based amorphous initial crystallization temperature of magnetic core
Amount device, the measurement apparatus can effectively and accurately measure magnetic core initial crystallization temperature parameter and chi in heat treatment process
The incidence relation of very little grade, and cost is extremely low.
The present invention is realized by following technical method：
A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core, including it is provided with the body of heater 1 of cavity, muffle tube 3, many
Group resistance wire 5 and sample box 6, the muffle tube 3 are crossed in the cavity of the body of heater 1, and the resistance wire 5 is arranged at the Muffle
Between pipe 3 and the body of heater 1, the sample box 6 is located at the center of inside of the muffle tube 3, near sample in the sample box 6
Position set the first thermocouple 8；It is provided for controlling the second thermocouple 9 of furnace temperature in the muffle tube 3.
Further, the resistance wire 5 surrounds muffle tube 3 and is distributed in a tubular form, and the enclosing region of the resistance wire 5 forms samming
Area.
Further, the temperature error in the uniform temperature zone is less than ± 2 DEG C.
Further, the programming rate of the uniform temperature zone is 5 DEG C/min.
Further, second thermocouple 9 is arranged in the uniform temperature zone.
Further, also including cyclelog 10, described program controller 10 is arranged at the outside of the muffle tube 3,
Described program controller 10 is electrically connected with second thermocouple 9, the resistance wire 5.
Further, the resistance wire 5 is single group Power Control.
Further, it is provided with galvanic couple protection pipe 11 on the outside of the thermocouple of first thermocouple 8 and second.
Further, the inner side of the body of heater 1 sets heat-insulation layer 4.
Further, purity nitrogen protection gas is injected with the muffle tube 3.
Compared with prior art, the present invention at least has advantages below：
The measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core that the present invention is provided, can be closer to the heat treatment at scene
Condition, can effectively and accurately measure magnetic core initial crystallization temperature parameter and size etc. in heat treatment process and associate pass
System, formulates factory more reasonably Technology for Heating Processing program and is acted on there is provided important guiding.And the measurement apparatus cost is extremely low, has
Beneficial to large-scale production and popularization and application.
Brief description of the drawings
The structural representation of the measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core that Fig. 1 is provided for the present invention；
The measurement apparatus longitudinal profile schematic diagram of the initial crystallization temperature of Fe-based amorphous magnetic core that Fig. 2 is provided for the present invention；
First thermocouple 8 and the second thermocouple 9 when Fig. 3 in the embodiment that provides of the present invention to determine Fe-based amorphous sample
Temperature curve variation diagram.
Description of reference numerals：
1- bodies of heater；
3- muffle tubes；
4- heat-insulation layers；
5- resistance wires；
6- sample boxs；
7- samples；
The thermocouples of 8- first；
The thermocouples of 9- second；
10- cyclelogs；
11- galvanic couple protection pipes.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.Therefore, reality of the invention below to providing in the accompanying drawings
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Embodiment below with reference to Description of Drawings is exemplary, it is intended to for explaining the present invention, without being understood that
It is limitation of the present invention.
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
As illustrated in fig. 1 and 2, a kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core, including the stove for being provided with cavity
Body 1, muffle tube 3, resistance wire 5 and sample box 6.The inner side of body of heater 1 sets heat-insulation layer 4.Muffle tube 3 is thin-wall stainless steel muffle tube,
Diameter is smaller, preferably 25-50mm.Sample box 6 is made of copper product.Muffle tube 3 is crossed in the cavity of body of heater 1, resistance
Silk 5 is arranged between muffle tube 3 and body of heater 1, and sample box 6 is located at the center of inside of muffle tube 3, near sample in sample box 6
Position sets the first thermocouple 8, for showing sample temperature, and carries out heating curve record.Second is also set up in muffle tube 3
Thermocouple 9.Second thermocouple 9 and the first thermocouple 8 are with a uniform temperature zone, but the second thermocouple 9 makes away from sample box 6
Not by testing sample heating influenceed.The outside of the first thermocouple 8 and the second thermocouple 9 is provided with galvanic couple protection pipe 11.
The device is additionally provided with cyclelog 10, and cyclelog 10 is electrically connected with the second thermocouple 9, resistance wire 5, shape
Into closed loop, it is used to carry out the at the uniform velocity intensification control of uniform temperature zone.Usually, the programming rate of uniform temperature zone is 5 DEG C/min.
Resistance wire 5 surrounds muffle tube 3 and is distributed in a tubular form, and the region that resistance wire 5 is surrounded forms uniform temperature zone.Resistance wire 5 is single
Group Power Control, preferably nickel-chromium resistance wire.By adjusting the power density distribution along its length of resistance wire 5, make horse
Not the Temperature Distribution along its length of pipe 3 forms sufficiently long uniform temperature zone.Uniform temperature zone precision ± 2 DEG C.Injection in muffle tube 3 is quiet
Purity nitrogen protection gas only.
When using, testing sample 7 is put into sample box 6, the weight of usual sample 7 is less than 30 grams.Cyclelog is set
10, to control furnace temperature, make uniform temperature zone be heated up with 5 DEG C/min of linear speed.Now, the temperature of sample 7 is also therewith substantially at the uniform velocity
Raise, due to the thermal inertia and the thermal capacity of sample conducted heat, the temperature of sample 7 is slightly delayed, the weight of delay degree and sample 7
It is relevant.
When showing the initial crystallization temperature of the typical Fe-based amorphous sample of measure such as Fig. 3, the first thermocouple 8 and the second thermoelectricity
Even 9 temperature curve variation diagram.
As seen from Figure 3, the measurement apparatus for being provided using the present invention, the mid-winter that can accurately measure magnetic core to be measured is bent
Line, the projection peak height H of the heating curve and the area A that covers have a large change with magnetic core material and size, phase same material, bigger
The H and A at its peak of the sample of size can gradually increase increasing, and these changes can qualitatively judge the magnetic core of the material, the size
The initial crystallization behavior of product, the program that rational furnace temperature heats up is formulated in order to scene, reaches the favourable of control product quality
Means.
The present invention preferably specific embodiment, but the protection domain of invention is not limited thereto, it is any to be familiar with this technology
The technical staff in field the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered in this hair
Within bright protection domain.Therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (10)
1. a kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core, it is characterised in that the body of heater including being provided with cavity
(1), muffle tube (3), multigroup resistance wire (5) and sample box (6), the muffle tube (3) are crossed in the cavity of the body of heater (1),
The resistance wire (5) is arranged between the muffle tube (3) and the body of heater (1), and the sample box (6) is positioned at the muffle tube
(3) center of inside, the first thermocouple (8) is set in the sample box (6) near the position of sample；In the muffle tube (3)
It is provided for controlling second thermocouple (9) of furnace temperature.
2. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that the electricity
Resistance silk (5) is surrounded muffle tube (3) and is distributed in a tubular form, and resistance wire (5) enclosing region forms uniform temperature zone.
3. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 2, it is characterised in that it is described
Temperature error in warm area is less than ± 2 DEG C.
4. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 2, it is characterised in that it is described
The programming rate of warm area is 5 DEG C/min.
5. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 2, it is characterised in that described
Two thermocouples (9) are arranged in the uniform temperature zone.
6. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that also include
Cyclelog (10), described program controller (10) is arranged at the outside of the muffle tube (3), described program controller (10)
Electrically connected with second thermocouple (9), the resistance wire (5).
7. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that the electricity
Resistance silk (5) is single group Power Control.
8. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that described
Galvanic couple protection pipe (11) is provided with the outside of one thermocouple (8) and the second thermocouple.
9. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that the stove
The inner side of body (1) sets heat-insulation layer (4).
10. measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core according to claim 1, it is characterised in that described
Purity nitrogen protection gas is injected with muffle tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217010.4A CN106872065A (en) | 2017-04-05 | 2017-04-05 | A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217010.4A CN106872065A (en) | 2017-04-05 | 2017-04-05 | A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core |
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| Publication Number | Publication Date |
|---|---|
| CN106872065A true CN106872065A (en) | 2017-06-20 |
Family
ID=59160127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710217010.4A Pending CN106872065A (en) | 2017-04-05 | 2017-04-05 | A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344520A (en) * | 2018-02-07 | 2018-07-31 | 芜湖东旭光电科技有限公司 | Thermocouple combines the unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015488A (en) * | 2011-07-06 | 2013-01-24 | Miyagawa Kasei Ind Co Ltd | Thermo couple |
| CN104568209A (en) * | 2015-01-07 | 2015-04-29 | 大连理工大学 | Magnetic material curie temperature measuring method based on thermogravimetry changes |
| CN104775021A (en) * | 2014-01-10 | 2015-07-15 | 宝山钢铁股份有限公司 | Carbon steel sheet continuous annealing production line rapid heating method and apparatus |
| CN204944182U (en) * | 2015-08-20 | 2016-01-06 | 中国航空工业集团公司北京航空材料研究院 | A kind of heating furnace for bar and sheet coupon tension test |
| CN106521100A (en) * | 2016-12-06 | 2017-03-22 | 内蒙古科技大学 | Magnetic field annealing furnace experimental apparatus |
| CN206740264U (en) * | 2017-04-05 | 2017-12-12 | 北京郡北科磁性科技有限公司 | A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core |
-
2017
- 2017-04-05 CN CN201710217010.4A patent/CN106872065A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015488A (en) * | 2011-07-06 | 2013-01-24 | Miyagawa Kasei Ind Co Ltd | Thermo couple |
| CN104775021A (en) * | 2014-01-10 | 2015-07-15 | 宝山钢铁股份有限公司 | Carbon steel sheet continuous annealing production line rapid heating method and apparatus |
| CN104568209A (en) * | 2015-01-07 | 2015-04-29 | 大连理工大学 | Magnetic material curie temperature measuring method based on thermogravimetry changes |
| CN204944182U (en) * | 2015-08-20 | 2016-01-06 | 中国航空工业集团公司北京航空材料研究院 | A kind of heating furnace for bar and sheet coupon tension test |
| CN106521100A (en) * | 2016-12-06 | 2017-03-22 | 内蒙古科技大学 | Magnetic field annealing furnace experimental apparatus |
| CN206740264U (en) * | 2017-04-05 | 2017-12-12 | 北京郡北科磁性科技有限公司 | A kind of measurement apparatus of the initial crystallization temperature of Fe-based amorphous magnetic core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344520A (en) * | 2018-02-07 | 2018-07-31 | 芜湖东旭光电科技有限公司 | Thermocouple combines the unit |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
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