CN206872881U - A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace - Google Patents
A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace Download PDFInfo
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- CN206872881U CN206872881U CN201720347162.1U CN201720347162U CN206872881U CN 206872881 U CN206872881 U CN 206872881U CN 201720347162 U CN201720347162 U CN 201720347162U CN 206872881 U CN206872881 U CN 206872881U
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- ventilating duct
- thermal conductivity
- annealing furnace
- purity nitrogen
- cylinder type
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000137 annealing Methods 0.000 title claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 12
- 238000012546 transfer Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000004087 circulation Effects 0.000 description 4
- 239000002178 crystalline material Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002707 nanocrystalline material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000003339 pneumostatic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses a kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace, including Muffle pot (7), circulating fan (10), heater (9) and ventilating duct (13), the ventilating duct (13) is arranged in the Muffle pot (7), the side of the ventilating duct (13) is provided with air outlet, the opposite side of the ventilating duct (13) is provided with air inlet, the centre of the ventilating duct (13) is placed with heated work pieces to be added (6), the circulating fan (10) is arranged at the right side of the ventilating duct (13), the heater (9) is arranged at the both sides of the circulating fan (10).Interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace provided by the utility model has advantages below：Workpiece inside and outside temperature difference can be reduced, is allowed to uniformly heat, to improve the annealing quality of workpiece.
Description
Technical field
A kind of magnetic element annealing device is the utility model is related to, especially a kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen is protected
Protect annealing furnace.
Background technology
Non-crystalline material and nanocrystalline material are the new soft magnetic materials occurred the eighties in last century, and non-crystalline material has atom
The longrange disorder of arrangement and minimum magnetocrystalline anisotropy, nanocrystalline material have nano level crystallite dimension again, it has been found that, warp
After crossing suitable heat treatment (including magnetic-field heat treatment), the amorphous nano-crystalline magnetic core of above-mentioned special construction is formed with extremely excellent
Soft magnetic characteristic, be widely applied and send out in the high-tech sectors such as electronics industry, new energy, electromagnetic compatibility in recent years
Exhibition.
In recent years, amorphous nano-crystalline new material industry in China's has in terms of material technology, application and system band equipment technology
Rapid development, still, for a long time, the heat treatment equipment development that is closely related with material magnetic characteristic is relative develop it is slower, it is special
The problems such as not being the temperature homogeneity in heat-treatment furnace, is not resolved thoroughly, have impact on the efficiency and product matter of batch production
Amount.
At present, amorphous soft magnet industry, which generally uses to apply, carries out 350-560 DEG C of annealing to improve soft magnetism magnetic under transverse magnetic field
The magnetic property of core element.Due to being limited by magnetic pole and retort height, moved back usually using the protection of external-heat compressed tunnel purity nitrogen
Stove, rolled up for example, Publication No. CN101555544A Chinese invention patent application discloses one kind soft magnetism under transverse magnetic field
Around the Equipment for Heating Processing and method of iron core, it includes a longitudinal tunnel annealing furnace, above and below the samming section of the stove
N pole plates and S pole plates with ndfeb magnetic pole are respectively arranged with, is produced between N pole plates and S pole plates by N to S vertically
The strength magnetic line of force, upper and lower two pole plates are connected with workpiece magnetic core is connected into magnetic circuit, and the magnetic pole is integrally provided in continuous tunnel furnace surface
Upper and lower, the hermetically sealed can for laying Wound core workpiece is additionally provided with continuous tunnel furnace, anti-oxidation gas is connected with tank.The patent
Apply for the external-heat compressed tunnel formula purity nitrogen protection annealing furnace existing defects used, such as in heating process, be heated workpiece
Internal-external temperature difference is excessive, particularly has a case that crystallization fever phenomenon (such as non-crystalline material), workpiece in heated workpiece material
Inner member temperature is often higher by outer member temperature up to as many as 160 DEG C, makes workpiece be caused to give birth to by thermoae uneven generation burning
The product of output is unqualified.
Utility model content
The defects of the utility model is directed to above in the prior art provides thermal conductivity wind cylinder type tunnel in a kind of rear wind circulation
Purity nitrogen protects annealing furnace, and the annealing furnace can reduce workpiece inside and outside temperature difference, be allowed to uniformly heat, to improve the annealing matter of workpiece
Amount, can greatly improve the performance of prepared product, and improve production efficiency.
The utility model is realized by following technical method：
A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace, including Muffle pot 7, circulating fan 10, heater 9 and lead
Air duct 13, the centre of the Muffle pot 7 are placed with heated work pieces 6 to be added, and the ventilating duct 13 is arranged in the Muffle pot 7,
The side of the ventilating duct 13 is provided with air outlet, and the opposite side of the ventilating duct 13 is provided with air inlet, and the ventilating duct 13 is just
Center is placed with heated work pieces 6 to be added, and the circulating fan 10 is arranged at the right side of the ventilating duct 13, and the heater 9 is set
In the both sides up and down of the circulating fan 10.
Further, the air outlet of the ventilating duct 13 is circular open, and is right against the circulating fan 10.
Further, the air outlet diameter of the ventilating duct 13 is straight less than or equal to the inlet scoop of the circulating fan 10
Footpath.
Further, the air inlet diameter of the ventilating duct 13 is more than the diameter of the air outlet of the ventilating duct 13.
Further, the circulating fan 10 is centrifugal fan.
Further, in addition to it is used for the motor 12 for driving the circulating fan 10, the motor 12 is arranged at the horse
The not outside of tank 7.
Further, in addition to it is used for the first thermocouple 15 for determining intake air temperature, first thermocouple 15 is set
In the left side of the heated work pieces 6 to be added.
Further, in addition to the second thermocouple 14, second thermocouple 14 are arranged at the right side of the heated work pieces to be added 6
Side.
Further, it is provided with insulating barrier 4 at the left side port of the Muffle pot 7.
Further, the outside of the Muffle pot 7 is provided with heat-insulation layer 5.
Compared with prior art, the utility model at least has advantages below：
Interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace provided by the utility model and conventional external-heat, pneumostatic stream
The design of non-tunnel stove is different, and in addition to carrying out purity nitrogen protection gas heating by the way of internal heat type and pressure wind circulation, its is main
Method is the design by increasing ventilating duct, is different from crosswind endless form.In the annealing furnace, heat-resisting circulating fan is not on
The side of body of heater, and be located at body of heater rear end, its with the ventilating duct of increased heat-resisting steel sheet and plate be engaged, make to be heated hot blast edge
The air inlet flowed on the outside of ventilating duct on the left of heated work pieces to be added, carries out pressure heat exchange, makes up to and forces workpiece uniformly to heat
Purpose.
Brief description of the drawings
Fig. 1 is the section signal for the front view that interior thermal conductivity wind cylinder type tunnel purity nitrogen provided by the utility model protects annealing furnace
Figure；
Fig. 2 is the section signal for the top view that interior thermal conductivity wind cylinder type tunnel purity nitrogen provided by the utility model protects annealing furnace
Figure.
Description of reference numerals：
4- insulating barriers；
5- heat-insulation layers；
6- heated work pieces to be added；
7- Muffle pots；
9- heaters；
10- circulating fans；
12- motors；
13- ventilating ducts；
The thermocouples of 14- second；
The thermocouples of 15- first.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed the scope of the utility model,
But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belong to the model of the utility model protection
Enclose.
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and can not
It is interpreted as to limitation of the present utility model.
The utility model is further described with specific embodiment below with reference to accompanying drawings.
As depicted in figs. 1 and 2, a kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace, including Muffle pot 7, circulated air
Fan 10, heater 9 and ventilating duct 13, ventilating duct 13 are arranged in Muffle pot 7, and the side of ventilating duct 13 is provided with air outlet, wind-guiding
The opposite side of cylinder 13 is provided with air inlet.The centre of ventilating duct 13 is placed with heated work pieces 6 to be added, and circulating fan 10 is arranged at wind-guiding
The right side of cylinder 13, heater 9 are arranged at the both sides of circulating fan 10.
Insulating barrier 4 is set at the left side port of Muffle pot 7, scattered and disappeared for reducing heat.The outside of Muffle pot 7, which is set, to be protected
Warm layer 5, for the insulation in Muffle pot 7.
Preferably, Muffle pot 7 uses heat-resistance stainless steel Muffle pot, and heater 9 uses tube heater, and ventilating duct 13 selects
Heat-resisting steel sheet and plate ventilating duct, circulating fan 10 are centrifugal fan.
The ladle body of ventilating duct 13 can be circular, square, cylindrical etc. or other shapes, but preferably circular.Wind-guiding
The air outlet of cylinder 13 is circular open, and it can extend diminution to the right by the ladle body of ventilating duct 13 and be formed.The air-out of ventilating duct 13
Mouth is right against circulating fan 10, and its diameter is less than or equal to the inlet scoop diameter of circulating fan 10.The air inlet of ventilating duct 13
Diameter is more than the diameter of the air outlet of the ventilating duct 13.Motor 12 for driving cycle fan 10 is arranged at Muffle pot 7
Outside.
First thermocouple 15 is set in the left side of heated work pieces 6 to be added, for controlling furnace temperature, while can also determine ventilating duct 13
Air inlet (i.e. the air intake location of workpiece) temperature.The right side of heated work pieces 6 to be added sets the second thermocouple 14, for entering for observation
Temperature difference between the wind location of workpiece and the air-out location of workpiece.
During work, heated work pieces 6 to be added are positioned over to the centre of ventilating duct 13, heater 9 is begun to warm up, and motor 12 drives
Dynamic circulating fan 10 is run.Because of circulating fan 10 in thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace in disclosed in the utility model
Using centrifugal fan, ventilating duct 13 is added, and the air outlet of ventilating duct 13 reduces, and its diameter is less than or equal to circulated air
The diameter of the flabellum connector of fan 10, when the air outlet of ventilating duct 13 is adjoining with circulating fan 10, the air-out of ventilating duct 13
Mouth can be used as the inlet scoop of circulating fan 10, ventilating duct 13 and the close fit of circulating fan 10 so that the air in Muffle pot 7
Flowed completely along direction as shown in Figure 1 or 2, form convection type heat transfer.
The applicable heat-treatment temperature range of the utility model is 200-560 DEG C.Thermal conduction study shows that the scope belongs to low temperature model
Enclose, its optimal heat transfer type is mainly convection heat transfer' heat-transfer by convection, and in the external-heat routinely used, the heating condition without gas flowing, it is passed
The thermal efficiency is very low, and heat transfer, internal-external temperature difference are very big at a slow speed for workpiece ecto-entad.The utility model is forced by applying circulating fan
Gas circulation, the heat transfer type of workpiece is changed to convection heat transfer' heat-transfer by convection mode by contact conduction heat transfer, hot gas flow speed quickly, makes
Heat transfer efficiency greatly reduces the internal-external temperature difference of workpiece while raising.
The thermal inertia of conventional external-heat mode of heating is serious, transfers heat to workpiece by heater 9, it is necessary to by stainless steel Muffle
Air transmitted around tank and workpiece can just pass to, and the thermal inertia time is very big, easily produce overtemperature and temperature control wave phenomenon, especially
In the case where workpiece material has a case that crystallization fever phenomenon (such as non-crystalline material), it is frequent that overheat overtemperature causes workpiece to scrap situation
Occur.By contrast, the interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace disclosed in the utility model, as a result of by outside
Hot type is changed to internal heat type heating, and the flowing of circulating fan forced gas, the cycle-index of thermal current within the workpiece is very high, local hot gas
Up to hundreds of circulations per minute, the heat energy from heater 9 is set to pass between the temperature-control heat couple 15 at workpiece position instead
It is very short between seasonable, almost without thermal inertia, make the temperature control of workpiece very accurate, greatly reduce workpiece overheat overtemperature and scrap
Generation, and workpiece surface by circulated air force taken away heat, accelerate inside workpiece heat outflow (particularly in work
In the case that part material has crystallization heating), workpiece inside and outside temperature difference is reduced, is allowed to uniformly heat, to improve the annealing matter of workpiece
Amount, can effectively be reduced or avoided burn-off phenomenon, so as to reduce production cost.
In addition, the utility model employs rear wind endless form, compared to crosswind endless form, its increased ventilating duct is set
Meter makes wind-guiding path be merged into furnace interior, and thermal inertia is reduced, thermal efficiency increase；Reduce the space in the stove external hot air road of side
And heat loss, the size of continuous tunnel furnace along its length can reduce accordingly, and it is too high to it also avoid local temperature in continuous tunnel furnace,
So as to reduce the damage of continuous tunnel furnace, extend the service life etc. of continuous tunnel furnace.
The preferable embodiment of the utility model, but the protection domain of utility model is not limited thereto, it is any ripe
Those skilled in the art are known in the technical scope that the utility model discloses, the change or replacement that can be readily occurred in, all
It should cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with claims
Protection domain is defined.
Claims (10)
1. a kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace, it is characterised in that including Muffle pot (7), circulating fan
(10), heater (9) and ventilating duct (13), the ventilating duct (13) are arranged in the Muffle pot (7), the ventilating duct (13)
Side be provided with air outlet, the opposite side of the ventilating duct (13) is provided with air inlet, and the centre of the ventilating duct (13) is placed
Need heated partses (6), the circulating fan (10) is arranged at the right side of the ventilating duct (13), and the heater (9) is set
In the both sides of the circulating fan (10).
2. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that the ventilating duct
(13) air outlet is circular open, and is right against the circulating fan (10).
3. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 2, it is characterised in that the ventilating duct
(13) air outlet diameter is equal to the inlet scoop diameter of the circulating fan (10).
4. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that the ventilating duct
(13) air inlet diameter is more than the diameter of the air outlet of the ventilating duct (13).
5. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that the circulated air
It is centrifugal fan to fan (10).
6. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that also include being used for
The motor (12) of the circulating fan (10) is driven, the motor (12) is arranged at the outside of the Muffle pot (7).
7. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that also include being used for
The first thermocouple (15) of intake air temperature is determined, first thermocouple (15) is arranged at a left side for the heated work pieces to be added (6)
Side.
8. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that also including second
Thermocouple (14), second thermocouple (14) are arranged at the right side of the heated work pieces to be added (6).
9. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that the Muffle pot
(7) insulating barrier (4) is provided with left side port.
10. interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace according to claim 1, it is characterised in that the Muffle
Heat-insulation layer (5) is provided with the outside of tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720347162.1U CN206872881U (en) | 2017-04-05 | 2017-04-05 | A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720347162.1U CN206872881U (en) | 2017-04-05 | 2017-04-05 | A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206872881U true CN206872881U (en) | 2018-01-12 |
Family
ID=61342844
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720347162.1U Expired - Fee Related CN206872881U (en) | 2017-04-05 | 2017-04-05 | A kind of interior thermal conductivity wind cylinder type tunnel purity nitrogen protection annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206872881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200645A (en) * | 2019-06-27 | 2019-09-06 | 上海市计量测试技术研究院 | Detect the device and method of solid-state esophageal manometry system |
-
2017
- 2017-04-05 CN CN201720347162.1U patent/CN206872881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200645A (en) * | 2019-06-27 | 2019-09-06 | 上海市计量测试技术研究院 | Detect the device and method of solid-state esophageal manometry system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 |