CN109489419A - A kind of intermediate frequency furnace - Google Patents
A kind of intermediate frequency furnace Download PDFInfo
- Publication number
- CN109489419A CN109489419A CN201811428662.3A CN201811428662A CN109489419A CN 109489419 A CN109489419 A CN 109489419A CN 201811428662 A CN201811428662 A CN 201811428662A CN 109489419 A CN109489419 A CN 109489419A
- Authority
- CN
- China
- Prior art keywords
- crucible
- intermediate frequency
- furnace shell
- induction coil
- probe
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a kind of intermediate frequency furnaces, including furnace shell, intermediate frequency power supply is provided with outside furnace shell, furnace shell inner cavity is provided with the induction coil annularly arranged and induction coil is connected with intermediate frequency power supply, induction coil bottom is equipped with bottom cover, top cover is installed at the top of induction coil, induction coil inner cavity packet is equipped with crucible, incubation cavity is provided between induction coil inner wall and crucible outer wall, insulation material is filled in incubation cavity, the thermocouple for the monitoring of crucible inner cryogenic and the radar stealthy materials of crucible internal high temperature monitoring are provided with outside furnace shell, thermocouple passes through to be connected to inside the probe and crucible that can be slided, cylinder is connected on probe, cylinder is for driving the probe to pass in and out the crucible, radar stealthy materials inside graphite-pipe and the crucible by being connected to.The present invention is switched by thermocouple and radar stealthy materials, is monitored low temperature and high temperature inside crucible respectively, can effectively be realized going on smoothly for equipment thermometric process.
Description
Technical field
The present invention relates to heat treatment machinery fields, more specifically, in particular to a kind of intermediate frequency furnace.
Background technique
Intermediate frequency furnace is a kind of novel Equipment for Heating Processing, and intermediate frequency furnace is in use, what heated work pieces to be added were surrounded
When magnetic flux changes, induced potential will be generated in loop, effect of the workpiece in alternating magnetic field by electromagnetic induction
Induced potential equally can be also generated, to can be formed in workpiece induced current (vortex), induced current overcomes workpiece itself
Resistance just generates Joule heat, this heat can directly heat workpiece itself in turn, to make workpiece heating, fusing, reaches
The purpose of the various heat treatments of workpiece.Since the heat of intermediate frequency furnace is generated in workpiece therein, heating method heating temperature
Degree is high, heating rate is fast, oxidation is few, heating efficiency is high, while induction heating easily realizes that homogeneous heating, the core table temperature difference are small, because
This, intermediate frequency furnace is deeper and deeper to be liked by users.
In intermediate frequency furnace, it is the heating temperature of better monitoring workpiece, effectively realizes the control of workpiece heating temperature, in
Special temperature monitor is typically provided with inside frequency induction furnace.In existing design, since thermocouple has, structure is simple, manufactures
Conveniently, the advantages that measurement range is wide, precision is high, and additional power source is not necessarily to when thermocouple measurement, use is very convenient, therefore, in
Usually use thermocouple as temperature monitor inside frequency induction furnace.In practical operation, although thermocouple thermometric under normal circumstances
It is more convenient, but the temperature of Medium frequency induction furnace interior is often very high, it usually can achieve 3000 degrees Celsius, and thermocouple sheet
The highest bearing temperature of body is usually no more than 1600 degrees Celsius, in this way, thermocouple is caused usually to burn out since temperature is excessive, pole
The normal thermometric of equipment is affected greatly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of intermediate frequency furnace, which is set by its structure
Meter, can effectively realize going on smoothly for equipment thermometric process.
A kind of intermediate frequency furnace, including furnace shell are provided with intermediate frequency power supply outside the furnace shell, and the furnace shell inner cavity is provided with
The induction coil and the induction coil annularly arranged are connected with the intermediate frequency power supply, and the induction coil bottom is equipped with
Bottom cover, is equipped with top cover at the top of the induction coil, and the induction coil inner cavity packet is equipped with crucible, the induction coil inner wall with
It is provided with incubation cavity between the crucible outer wall, insulation material is filled in the incubation cavity, is provided with and is used for outside the furnace shell
The thermocouple of crucible inner cryogenic monitoring and the radar stealthy materials of crucible internal high temperature monitoring, the thermocouple is by can be with
Be connected to inside the probe of sliding and the crucible, is connected with cylinder on the probe, the cylinder be used to driving the probe into
The crucible out, the radar stealthy materials inside graphite-pipe and the crucible by being connected to.
Preferably, when the crucible internal temperature is no more than 1600 degrees Celsius, the thermocouple passes through the probe pair
The crucible internal temperature is monitored；When the crucible internal temperature is more than 1600 degrees Celsius, the cylinder is by the spy
Needle is extracted inside the crucible, and the radar stealthy materials are monitored the crucible internal temperature by the graphite-pipe.
Preferably, the induction coil is formed using alumina material is integrated poured.
Preferably, the insulation material is viscose base chopped strand.
Preferably, the crucible is the graphite crucible of annular configuration.
Preferably, be inserted with cooling water ingress pipe and cooling water delivery line on the furnace shell, the cooling water ingress pipe with
The cooling water delivery line is used to form water cooling loop in the furnace shell.
Preferably, vacuum pump is provided with outside the furnace shell, the vacuum pump is connected with the furnace shell inner cavity.
Preferably, it is provided with the first gas-guide tube for the input of furnace shell inner cavity inert gas outside the furnace shell and uses
In the second gas-guide tube of furnace shell inner cavity inert gas output.
The beneficial effects of the present invention are: intermediate frequency furnace provided by the invention is compact-sized, it can effectively realize that equipment is surveyed
Warm process is gone on smoothly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the overall structure diagram of intermediate frequency furnace provided by the embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.
Based on the embodiment in the application, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
A kind of specific embodiment of the invention is provided referring to Fig. 1, Fig. 1, wherein Fig. 1 is provided by the embodiment of the present invention
Intermediate frequency furnace overall structure diagram.Arrow direction is the flow direction of gas or cooling water in figure.
This programme is provided in the thermocouple and crucible for the monitoring of crucible inner cryogenic outside intermediate frequency furnace furnace shell
Low temperature is monitored and is distinguished with high temperature monitoring by the radar stealthy materials of portion's high temperature monitoring, can be efficient under 1600 degrees Celsius of low temperature conditions
The sensitivity and accuracy for applying to thermocouple under the high-temperature condition more than 1600 degrees Celsius, and can switch to radar stealthy materials
It carries out thermometric and is also possible to prevent thermocouple due to by warm mistake so that it is guaranteed that the entire thermometric process of intermediate frequency furnace is gone on smoothly
It is high and burn.
In the present solution, the intermediate frequency furnace includes furnace shell 1, and intermediate frequency power supply 2, induction coil 3, bottom cover 4, top cover 5, crucible 6,
Insulation material 7, thermocouple 8, radar stealthy materials 9, probe 10, cylinder 11, graphite-pipe 12, cooling water ingress pipe 13, cooling water delivery line 14,
Vacuum pump 15, the first gas-guide tube 16, the second gas-guide tube 17.
In the present solution, furnace shell 1 is the body supports part of equipment, the concrete shape and size of furnace shell 1 can be according to reality
It needs to carry out selection design.Specifically, the present embodiment has selected cylindric furnace shell.
In the present solution, being provided with intermediate frequency power supply 2 outside furnace shell 1,1 inner cavity of furnace shell is provided with the induction annularly arranged
The coil 3 and induction coil 3 is connected with the intermediate frequency power supply 2.Wherein, intermediate frequency power supply 2 is used for the offer of alternating current, sense
Offer of the coil 3 for alternating magnetic field is provided.Specifically, it due to the presence of induction coil 3, is placed in crucible 6 and in alternation
Workpiece in magnetic field equally can also be generated induced potential by the effect of electromagnetic induction, so that induced current can be formed in workpiece
(vortex), induced current overcome the resistance of workpiece itself just to generate Joule heat, this heat can directly heat workpiece in turn.
In the present solution, 3 bottom of induction coil is equipped with bottom cover 4, top cover 5, the sense are installed at the top of the induction coil 3
It answers 3 inner cavity of coil packet to be equipped with crucible 6, is provided with incubation cavity between 6 outer wall of 3 inner wall of induction coil and the crucible, it is described
Insulation material 7 is filled in incubation cavity.Specifically, bottom cover 4 generally selects thermal insulation material to be made with top cover 5, in this way, bottom cover 4
With top cover 5 incubation cavity can be formed around crucible 6 together with insulation material 7.Specifically, for further facilitate workpiece plus
Heat, crucible 6 are preferably the graphite crucible of annular configuration.
In the present solution, being provided with the thermocouple 8 and the crucible 6 for 6 inner cryogenic of crucible monitoring outside furnace shell 1
The radar stealthy materials 9 of internal high temperature monitoring, the thermocouple 8 passes through to be connected to inside the probe 10 and the crucible 6 that can be slided, described
Cylinder 11 is connected on probe 10, for the cylinder 11 for driving the probe 10 to pass in and out the crucible 6, the radar stealthy materials 9 are logical
It crosses inside graphite-pipe 12 and the crucible 6 and is connected to.
Specifically, the low temperature of the present embodiment refers to 0 to 1600 degree Celsius, and high temperature refers to 1600 to 3300 degrees Celsius.Certainly, above-mentioned
For the division of low temperature and high temperature and boundary are only in relation to the present embodiment.The temperature measuring device specifically selected when this programme thermometric can
To switch over according to temperature height situation, thermocouple 8 is selected when low temperature, when high temperature selects radar stealthy materials 9.Wherein, radar stealthy materials 9
Thermometric visor is connected inside the graphite-pipe 12 and crucible 6 by sealing, and the graphite-pipe 12 of sealing is inserted into furnace high-temperature area, sealing
Graphite-pipe 12 not only can be used for temperature conduction, but also can make to avoid workpiece volatile matter under high temperature to 9 thermometric visor eyeglass of radar stealthy materials
At pollution, so that it is guaranteed that thermometric process is gone on smoothly under high-temperature condition.
When it is implemented, the thermocouple 8 passes through described when 6 internal temperature of crucible is no more than 1600 degrees Celsius
Probe 10 is monitored 6 internal temperature of crucible；When 6 internal temperature of crucible is more than 1600 degrees Celsius, the gas
Cylinder 11 extracts the probe 10 inside the crucible 6, and the radar stealthy materials 9 are by the graphite-pipe 12 in the crucible 6
Portion's temperature is monitored.
In the present embodiment, the induction coil 3 is formed using alumina material is integrated poured.Relatively traditional induction coil
Using glass fiber tape winding insulation mode production, this programme is initiative integrally to pour induction coil 3 using alumina material
It infuses, in this way, it is higher using temperature, it insulate more reliable.It is Celsius that the heating temperature of traditional intermediate frequency furnace is generally below 3000
Degree, the present invention are designed by it, and the heating temperature of intermediate frequency furnace has successfully been promoted 3300 degrees Celsius or more.
In the present embodiment, the insulation material 7 is preferably viscose base chopped strand.Specifically, because intermediate frequency furnace uses
Temperature is high, and conventional equipment is all to keep the temperature charcoal felt after a period of use often as insulation material using heat preservation charcoal felt outside crucible
Can there is a situation where scaling loss, once there is scaling loss, need to split out and re-replace thermal insulation material after crucible, this patent is then initiative to be adopted
The viscose base chopped strand used is filled between induction coil 3 and crucible 6 as insulation material 7, and viscose base chopped strand is burnt
Can directly dismantle top cover 5 after damage, then continue to use, keep away from the incubation cavity that top is filled between induction coil 3 and crucible 6
The frequent replacement of crucible 6 dismantled repeatedly with thermal insulation material, time saving and energy saving cost-saving are exempted from.
In the present embodiment, to further facilitate cooling for furnace shell 1 and induction coil 3, it is preferable that on the furnace shell 1
It is inserted with cooling water ingress pipe 13 and cooling water delivery line 14, the cooling water ingress pipe 13 is used with the cooling water delivery line 14
In the formation water cooling loop in the furnace shell 1.Specifically, sandwich can be set in furnace shell 1, then cooperates above-mentioned water-cooling structure,
Uniform cooling water flow can be formed in equipment, greatly improve the service life of equipment and use under certain temperature is strong
Degree.
In the present embodiment, vacuum pump 15, the vacuum pump 15 and the 1 inner cavity phase of furnace shell are provided with outside the furnace shell 1
Connection.It is provided with outside the furnace shell 1 for the first gas-guide tube 16 of the 1 inner cavity inert gas of furnace shell input and for described
Second gas-guide tube 17 of 1 inner cavity inert gas of furnace shell output.
Specifically, before Medium frequency induction stove heating, certain vacuum degree first can will be evacuated to by vacuum pump 15 inside equipment, to
After device temperature is increased to 1800 DEG C, argon gas is filled with by the first gas-guide tube 16 of device bottom, argon gas is again before vacuum pump 15
The discharge of the second gas-guide tube 17, to make to be remarkably improved the use temperature of material in inert gas shielding state in equipment
And the service life.
A kind of intermediate frequency furnace provided by the present invention is described in detail above.Specific case used herein
Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection scope.
Claims (8)
1. a kind of intermediate frequency furnace, which is characterized in that including furnace shell, intermediate frequency power supply, the furnace shell are provided with outside the furnace shell
Inner cavity is provided with the induction coil annularly arranged and the induction coil is connected with the intermediate frequency power supply, the induction coil
Bottom is equipped with bottom cover, and top cover is equipped at the top of the induction coil, and the induction coil inner cavity packet is equipped with crucible, the induction
It is provided with incubation cavity between coil inner wall and the crucible outer wall, is filled with insulation material in the incubation cavity, outside the furnace shell
It is provided with the thermocouple for crucible inner cryogenic monitoring and the radar stealthy materials of crucible internal high temperature monitoring, the thermoelectricity
It is connected to inside even probe and the crucible by that can slide, cylinder is connected on the probe, the cylinder is used to drive
The probe passes in and out the crucible, and the radar stealthy materials inside graphite-pipe and the crucible by being connected to.
2. intermediate frequency furnace according to claim 1, which is characterized in that taken the photograph when the crucible internal temperature is no more than 1600
When family name spends, the thermocouple is monitored the crucible internal temperature by the probe；When the crucible internal temperature is super
When crossing 1600 degrees Celsius, the cylinder extracts the probe inside the crucible, and the radar stealthy materials pass through the graphite-pipe
The crucible internal temperature is monitored.
3. intermediate frequency furnace according to claim 1, which is characterized in that the induction coil is whole using alumina material
It is poured.
4. intermediate frequency furnace according to claim 1, which is characterized in that the insulation material is viscose base chopped strand.
5. intermediate frequency furnace according to claim 1, which is characterized in that the crucible is the graphite crucible of annular configuration.
6. intermediate frequency furnace according to claim 1, which is characterized in that be inserted on the furnace shell cooling water ingress pipe with
Cooling water delivery line, the cooling water ingress pipe and the cooling water delivery line are used to form water cooling loop in the furnace shell.
7. intermediate frequency furnace according to claim 1, which is characterized in that vacuum pump is provided with outside the furnace shell, it is described
Vacuum pump is connected with the furnace shell inner cavity.
8. intermediate frequency furnace according to claim 1, which is characterized in that be provided with outside the furnace shell for the furnace shell
First gas-guide tube of inner cavity inert gas input and the second gas-guide tube for the output of furnace shell inner cavity inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428662.3A CN109489419A (en) | 2018-11-27 | 2018-11-27 | A kind of intermediate frequency furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428662.3A CN109489419A (en) | 2018-11-27 | 2018-11-27 | A kind of intermediate frequency furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489419A true CN109489419A (en) | 2019-03-19 |
Family
ID=65697940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811428662.3A Pending CN109489419A (en) | 2018-11-27 | 2018-11-27 | A kind of intermediate frequency furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN109489419A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891335A (en) * | 2019-11-22 | 2020-03-17 | 中国航天空气动力技术研究院 | Heat accumulating type induction heating equipment |
| CN112978789A (en) * | 2021-02-07 | 2021-06-18 | 山东电亮亮信息科技有限公司 | Method for producing lithium titanate by high-temperature melting method |
| CN113624010A (en) * | 2021-08-02 | 2021-11-09 | 合肥科晶材料技术有限公司 | Induction heating furnace for glove box |
| CN114011527A (en) * | 2021-11-23 | 2022-02-08 | 湖南长仪微波科技有限公司 | Drum-type microwave high-temperature roasting ball mill for industrial production |
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| CN205280231U (en) * | 2015-12-30 | 2016-06-01 | 西安航天复合材料研究所 | Medium frequency induction fur nace with no disturbance temperature measuring device |
| CN206974138U (en) * | 2017-06-29 | 2018-02-06 | 南京威途真空技术有限公司 | A kind of packaged type vacuum high temperature furnace therm-param method device |
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| CN200943097Y (en) * | 2006-06-15 | 2007-09-05 | 山西太钢不锈钢股份有限公司 | Intermediate frequency heating graphite furnace lining |
| CN201770483U (en) * | 2010-06-29 | 2011-03-23 | 罗旺 | Intermediate-frequency induction heating ultrahigh-temperature graphitization furnace |
| CN102927830A (en) * | 2012-11-01 | 2013-02-13 | 西安电炉研究所有限公司 | Measurement and control system with discriminative tracking for temperature of high-temperature resistance furnace and monitoring method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891335A (en) * | 2019-11-22 | 2020-03-17 | 中国航天空气动力技术研究院 | Heat accumulating type induction heating equipment |
| CN112978789A (en) * | 2021-02-07 | 2021-06-18 | 山东电亮亮信息科技有限公司 | Method for producing lithium titanate by high-temperature melting method |
| CN113624010A (en) * | 2021-08-02 | 2021-11-09 | 合肥科晶材料技术有限公司 | Induction heating furnace for glove box |
| CN114011527A (en) * | 2021-11-23 | 2022-02-08 | 湖南长仪微波科技有限公司 | Drum-type microwave high-temperature roasting ball mill for industrial production |
| CN114011527B (en) * | 2021-11-23 | 2022-11-29 | 湖南长仪微波科技有限公司 | Drum-type microwave high-temperature roasting ball mill for industrial production |
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Application publication date: 20190319 |
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