CN101788225A - Ultrahigh temperature heating furnace - Google Patents
Ultrahigh temperature heating furnace Download PDFInfo
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- CN101788225A CN101788225A CN 201010119615 CN201010119615A CN101788225A CN 101788225 A CN101788225 A CN 101788225A CN 201010119615 CN201010119615 CN 201010119615 CN 201010119615 A CN201010119615 A CN 201010119615A CN 101788225 A CN101788225 A CN 101788225A
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- burner hearth
- heater
- hearth
- zirconium diboride
- inductor
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Abstract
The invention discloses an ultrahigh temperature heating furnace which comprises a transformer, a controller, a furnace body, an inductor, a heat-preserving insulating material, a hearth, an infrared thermometer and a circulating water cooling device, wherein the heat-preserving insulating material is arranged in the furnace body, the infrared thermometer is arranged at one side of the furnace body, the transformer, the controller and the inductor are cooled through circulating water, the hearth is made of a zirconium diboride composite ceramic material, the inductor is positioned at the periphery of the hearth, and the heat-preserving insulating material is arranged between the inductor and the hearth. In the invention, when an alternating current power supply is input into an induction coil, an alternating electromagnetic field is formed in the inductor mainly through an induction heating principle. When the magnetic flux of the alternating electromagnetic field passes through the hearth made of the ZrB2 composite ceramic material, an eddy current can be generated, a large amount of heat can be generated by the hearth made of the ZrB2 composite ceramic material, and the hearth can heat. A high temperature environment is formed in the hearth and used for sintering under an oxidizing atmosphere and a vacuum atmosphere.
Description
Technical field
The invention belongs to a kind of superhigh temperature induction heater, relate generally to a kind of zirconium diboride (ZrB that utilizes
2) ultrahigh temperature heating furnace made of composite ceramic material.
Background technology
Surpass 1800 ℃ of heating furnaces in the stove and become ultrahigh temperature heating furnace.Common superhigh temperature resistance furnace is used heater element under the oxidizing atmosphere environment, have only chromic acid lanthanum heater element and zirconium dioxide heater element.The hot face temperature of chromic acid lanthanum heater element is 1900 ℃, and serviceability temperature is 1800 ℃ in the stove; The shortcoming of this element is when using under hot conditions, and the volatilization of chromic acid lanthanum produces a kind of material of chromium oxide, usually pollutes to be sintered thing, has limited the use of this element.The hot face temperature of zirconium dioxide heater element is 2100 ℃, and serviceability temperature is 2000 ℃ in the stove; The shortcoming of this element is when low temperature, zirconium dioxide is non-conductive, when using this element, must use auxiliary heating system, zirconium dioxide is heated to more than 1100 ℃, when making burner hearth, and the heating element heater of auxiliary heating system all can't be anti-2000 ℃ high temperature, the technology of making and the requirement of burner hearth material are high especially, also can not produce long-lived superhigh temperature electric stove so far, just rest on laboratory stage.
Therefore, the superhigh temperature electric stove that under oxidizing atmosphere environment and ultra-high temperature condition, uses, because the defective of the heating element heater that uses, only these several superhigh temperature electric stoves can not satisfy the needs of scientific research institutions and development in science and technology far away.
At present, induction heating technique is ripe, its application is very extensive, traditional induction heater is that heating object is placed in the burner hearth, itself does not generate heat burner hearth, it is by the heating object in the inductor heating furnace, heating object physics and chemical change self take place, perhaps surface property such as hardness, bright degree and the mechanical performance etc. to heating object change by heating performance own.The metallics that sensed object normally can conduct electricity, common induction furnace are that the raw metal of desiring melting is placed on melting in the burner hearth.
Summary of the invention
The purpose of this invention is to provide a kind ofly not only can under oxidizing atmosphere, use, but also the ultrahigh temperature heating furnace that can under vacuum condition, use.
Purpose of the present invention can be achieved through the following technical solutions: it comprises transformer, controller, body of heater, inductor, insulation insulating materials and burner hearth, infrared radiation thermometer, circulating water cooling device, the insulation insulating materials is arranged in the body of heater, infrared radiation thermometer is arranged on a side of body of heater, and transformer, controller and inductor cool off by recirculated water.Described burner hearth is a zirconium diboride composite ceramic material burner hearth, and inductor is located at the periphery of burner hearth, between inductor and the burner hearth insulating materials is set.
Described zirconium diboride composite ceramics burner hearth one end opening, an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door.
Described zirconium diboride composite ceramics burner hearth one end opening, an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door, on the body of heater of fire door outside sealing flange is set; Burner hearth links to each other with vavuum pump by pipeline, and valve and bleeding point are set on pipeline, can realize vacuum-sintering.
Described zirconium diboride composite ceramics burner hearth one end opening, an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door, on the body of heater of fire door outside sealing flange is set; Burner hearth links to each other with vavuum pump, the protective gas container of body of heater outside respectively by two pipelines, and on a pipeline air inlet and air intake valve is set, and sets out gas port and air outlet valve on another pipeline.
Described burner hearth is a zirconium diboride composite ceramics boiler tube, and boiler tube is horizontally set in the body of heater, boiler tube sealed at both ends, and the one end is connected with vavuum pump by pipeline; Or two ends connect air inlet and gas outlet by pipeline respectively, and air inlet is provided with air intake valve, set out air valve on the gas outlet.
Described burner hearth is a zirconium diboride composite ceramics boiler tube, and boiler tube vertically is arranged in the body of heater, boiler tube sealed at both ends, two ends connect air inlet and gas outlet by pipeline respectively, and air inlet is provided with air intake valve, sets out air valve, body of heater on the gas outlet.
Principle of the present invention mainly is by inductive heating principle, when AC power input induction coil, has just formed alternating electromagnetic field in inductor.The magnetic flux of alternating magnetic field passes by zirconium diboride (ZrB
2) composite ceramic material make burner hearth the time, will produce eddy current, the intensity of eddy current is directly proportional with the size of induced electromotive force, is inversely proportional to the reactance in eddy current loop, eddy current is easy to the numerical value that reaches bigger, ZrB
2The burner hearth that composite ceramic material makes will produce very big heat, and burner hearth itself will generate heat, and the temperature of burner hearth will raise.In burner hearth, form a hot environment, be used under oxidizing atmosphere, sintering under the vacuum atmosphere.Because ZrB
2The fusing point of composite ceramic material is higher, and the temperature of burner hearth can reach more than 3000 ℃ in theory.
The research document can find that superhigh temperature ceramic material is boride and the carbide ceramics material that a class has the transition metal of higher melt (greater than 3000 ℃) and other premium properties.Zirconium diboride is a kind of as superhigh temperature ceramic material, and it has plurality of advantages such as high-melting-point, high rigidity, good electrical conductivity, thermal conductivity, is widely used in the fields such as high temperature resistant structure ceramics, refractory material, electrode material and nuclear control material.ZrB
2-SiC composite ceramics is a kind of as superhigh temperature ceramic material, and its oxidative resistance has obtained certain raising, and, be applied to the science and techniques of defence field, obtained antioxidant effect preferably, based on ZrB
2-SiC composite ceramic material has the characteristics of high-melting-point, high rigidity, good electrical conductivity, thermal conductivity, non-oxidizability.
Description of drawings
Accompanying drawing 1 is embodiment 1 structural representation
Accompanying drawing 2 is embodiment 2 structural representations
Accompanying drawing 3 is embodiment 3 structural representations
Accompanying drawing 4 is embodiment 4 structural representations
Accompanying drawing 5 is embodiment 5 structural representations
Accompanying drawing 6 is embodiment 6 structural representations
Among the figure: 1, zirconium diboride composite ceramics burner hearth, 2, induction coil, 3, insulation material, 4, insulation insulating materials, 5, body of heater, 6, zirconium diboride composite ceramics boiler tube, 7, fire door, 8, valve, 9, bleeding point, 10, air intake valve, 11, air inlet, 12, the gas outlet, 13, the valve of giving vent to anger, 14, sealing flange, 15, the style piece, 16, go up lower clamp.
The specific embodiment
In the induction heater of the present invention, according to shape difference, the furnace binding difference of burner hearth, can make different purposes ultrahigh temperature heating furnace, its main type of furnace has following several:
Embodiment 1: the induction oxidation furnace, also be induction melting furnace, and it comprises transformer, body of heater 5, controller and insulation material 3, insulating materials 4.Induction oxidation furnace of the present invention is at first ZrB
2Composite ceramic material is made zirconium diboride composite ceramics burner hearth 1, induction coil 2 is set or copper pipe is made inductor around spherical hearth, and present embodiment adopts induction coil.By to ZrB
2The sensed heating of the spherical hearth that composite ceramic material is made is sintered object and is placed on oxidation in the burner hearth, burner hearth mouthful up, the end of burner hearth, is down.
Embodiment 2: it comprises transformer, body of heater 5, controller and insulation material 3, insulating materials 4.The described high temperature furnace of present embodiment is at first ZrB
2Composite ceramic material is done circular or square zirconium diboride composite ceramics burner hearth 16, and present embodiment is a circular arc, makes inductor twining induction coil 2, by to ZrB
2Circle that composite ceramic material is made or square burner hearth eddy-current heating are sintered object and are placed on sintering, annealing etc. in the burner hearth, and burner hearth keeps flat, burner hearth mouthful forward, the end of burner hearth, in a side of stockhole, be provided with a fire door 7 backwards.
Embodiment 3: the induction vacuum drying oven, also can be described as induction melting furnace, and it comprises transformer, body of heater 5, controller and insulation material 3, insulation insulating materials 4.The induction vacuum drying oven of present embodiment is at first ZrB
2Composite ceramic material is done zirconium diboride composite ceramics burner hearth 16, induction coil 2 is set makes inductor around spherical hearth, by to ZrB
2The spherical hearth eddy-current heating that composite ceramic material is made, be sintered object and be placed on sintering, annealing etc. in the burner hearth, burner hearth keeps flat, and the mouth of burner hearth forward, the end of burner hearth, backwards, in a side of stockhole, a fire door 7 is set, the fire door 7 outer sealing flanges 14 that are provided with, a such body of heater, be arranged in the airtight metal cabinet, burner hearth links to each other with vavuum pump by pipeline, and valve 8 and bleeding point 9 are set on pipeline.Can realize vacuum-sintering.
Embodiment 4: it comprises transformer, body of heater 5, controller and insulation material 3, insulation insulating materials 4, and present embodiment is at first ZrB
2Composite ceramic material is made zirconium diboride composite ceramics burner hearth 16, induction coil is set or copper pipe is made inductor around spherical hearth, by to ZrB
2The spherical hearth eddy-current heating that composite ceramic material is made, be sintered object and be placed on sintering in the burner hearth, annealing etc., burner hearth keeps flat, the mouth of burner hearth forward, the end of burner hearth, backwards, side at stockhole, a fire door 7 is set, outside the fire door 7 sealing flange 14 is set, a such body of heater, be arranged in the airtight metal cabinet, metal cabinet links to each other with vavuum pump by pipeline, can realize vacuum-sintering, also two pipelines can be set on metal cabinet, do air inlet 11 for one, another does gas outlet 12, and is provided with air intake valve 10 and give vent to anger valve 13, the induction furnace of Zhi Zuoing in this way, its contour structures can be called it and be the induction type vacuum atmosphere oven as vacuum atmosphere oven.
Embodiment 5: it comprises transformer, body of heater 5, controller and insulation material 3, insulation insulating materials 4, and present embodiment is at first ZrB
2Composite ceramic material is made a zirconium diboride composite ceramic tube 6, ZrB
2The external diameter of composite ceramic tube between Φ 20-300, between the internal diameter Φ 15-280, ZrB
2Induction coil is set in the centre of composite ceramic tube or copper pipe is made inductor, and present embodiment adopts induction coil 2, by to ZrB
2The ZrB that composite ceramic material is made
2The middle part eddy-current heating of composite ceramic tube is sintered object and is placed on ZrB
2Sintering, annealing etc. in the composite ceramic tube, ZrB
2Composite ceramic tube keeps flat, ZrB
2The both sides of composite ceramic tube are provided with sealed pipe fittings and valve, ZrB
2One side of composite ceramic tube links to each other with vavuum pump, can be implemented in vacuum-sintering in the pipe, also can be at ZrB
2The composite ceramic tube both sides are provided with two pipelines, do air inlet 11 for one, another does gas outlet 12, and be provided with air intake valve 10 and give vent to anger valve 13, can be implemented in the pipe under vacuum atmosphere sintering, the induction furnace of Zhi Zuoing in this way, its contour structures are as the vacuum atmosphere tube type stove, and can be called it is vacuum atmosphere induction tube furnace.
Embodiment 6: vacuum atmosphere induction hot pressing furnace, and it comprises transformer, body of heater 5, controller and insulation material 3, insulation insulating materials 4, present embodiment is at first ZrB
2Composite ceramic material is made a zirconium diboride composite ceramic tube 6, ZrB
2The external diameter of composite ceramic tube between Φ 20-300, between the internal diameter Φ 15-280, ZrB
2Induction coil is set in the centre of composite ceramic tube or copper pipe is made inductor, and present embodiment adopts induction coil 2, by to ZrB
2The ZrB that composite ceramic material is made
2The middle part eddy-current heating of composite ceramic tube is sintered coupon 15 and is placed on ZrB
2Sintering, annealing etc. in the composite ceramic tube, ZrB
2Composite ceramic tube is vertically placed, ZrB
2The both sides of composite ceramic tube are provided with sealed pipe fittings and valve, ZrB
2One side of composite ceramic tube links to each other with vavuum pump, can be implemented in vacuum-sintering in the pipe, also can be at ZrB
2The composite ceramic tube both sides are provided with two pipelines, do air inlet 11 for one, and another does gas outlet 12, and are provided with air intake valve 10 and the valve 13 of giving vent to anger, and can be implemented in the pipe sintering under atmosphere.Induction furnace is arranged between the last lower clamp 16 of a testing machine, is sintered the autoclave test of thing, can be called it and be vacuum atmosphere induction hot pressing furnace.
Utilize above-mentioned this principle can also make softening point apparatus, fusing point instrument or the like.
The above-mentioned embodiment that selects for use currently thinks to suit that the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the scope of the invention.
Claims (6)
1. ultrahigh temperature heating furnace, it comprises transformer, controller, body of heater, inductor, insulation insulating materials and burner hearth, infrared radiation thermometer, circulating water cooling device, the insulation insulating materials is arranged in the body of heater, infrared radiation thermometer is arranged on a side of body of heater, transformer, controller and inductor cool off by recirculated water, it is characterized in that: described burner hearth is a zirconium diboride composite ceramic material burner hearth, and inductor is located at the periphery of burner hearth, and the insulation insulating materials is set between inductor and the burner hearth.
2. ultrahigh temperature heating furnace according to claim 1 is characterized in that: zirconium diboride composite ceramics burner hearth one end opening, an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door.
3. ultrahigh temperature heating furnace according to claim 1 is characterized in that: described zirconium diboride composite ceramics burner hearth one end opening, and an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door, on the body of heater of fire door outside sealing flange is set; Burner hearth links to each other with vavuum pump by pipeline, and valve and bleeding point are set on pipeline, can realize vacuum-sintering.
4. ultrahigh temperature heating furnace according to claim 1 is characterized in that: described zirconium diboride composite ceramics burner hearth one end opening, and an end of zirconium diboride composite ceramics burner hearth opening is provided with fire door, on the body of heater of fire door outside sealing flange is set; Burner hearth links to each other with vavuum pump, protective gas container respectively by two pipelines, and on a pipeline air inlet and air intake valve is set, and sets out gas port and air outlet valve on another pipeline.
5. ultrahigh temperature heating furnace according to claim 1 is characterized in that: described burner hearth is a zirconium diboride composite ceramics boiler tube, and boiler tube is horizontally set in the body of heater, boiler tube sealed at both ends, and the one end is connected with vavuum pump by pipeline; Or two ends connect air inlet and gas outlet by pipeline respectively, and air inlet is provided with air intake valve, set out air valve on the gas outlet.
6. ultrahigh temperature heating furnace according to claim 1, it is characterized in that: described burner hearth is a zirconium diboride composite ceramics boiler tube, boiler tube vertically is arranged in the body of heater, boiler tube sealed at both ends, two ends connect air inlet and gas outlet by pipeline respectively, and air inlet is provided with air intake valve, sets out air valve on the gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010119615 CN101788225A (en) | 2010-03-06 | 2010-03-06 | Ultrahigh temperature heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010119615 CN101788225A (en) | 2010-03-06 | 2010-03-06 | Ultrahigh temperature heating furnace |
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| CN101788225A true CN101788225A (en) | 2010-07-28 |
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| CN 201010119615 Pending CN101788225A (en) | 2010-03-06 | 2010-03-06 | Ultrahigh temperature heating furnace |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022906A (en) * | 2010-10-28 | 2011-04-20 | 合肥高歌热处理应用技术有限公司 | Box-type resistance furnace |
| CN102706145A (en) * | 2012-06-11 | 2012-10-03 | 山东理工大学 | Method for preparing feeding nozzle for continuous high-purity alumina melting furnace and continuous melting furnace |
| CN102701744A (en) * | 2012-06-11 | 2012-10-03 | 山东理工大学 | Preparation method for feeding nozzle for high-purity quartz continuous smelting furnace and continuous smelting furnace |
| CN102728834A (en) * | 2012-05-25 | 2012-10-17 | 中国核动力研究设计院 | Eddy-current sintering method and device of conducting material |
| CN103471732A (en) * | 2013-08-29 | 2013-12-25 | 苏州工业园区华福科技有限公司 | Automatic temperature measurement device |
| CN104142062A (en) * | 2014-07-14 | 2014-11-12 | 洛阳市西格马炉业有限公司 | Ultrahigh temperature vacuum hot pressing furnace |
| CN106747464A (en) * | 2017-01-04 | 2017-05-31 | 广东工业大学 | ZrB2SiC ceramic heater and superhigh temperature firing equipment |
| CN107059143A (en) * | 2016-12-13 | 2017-08-18 | 无锡南方声学工程有限公司 | A kind of sealing structure of vacuum cleaning oven |
| CN107894441A (en) * | 2017-11-27 | 2018-04-10 | 洛阳西格马炉业股份有限公司 | A kind of local laser heating antioxygenic property test equipment and method of testing |
| CN108676998A (en) * | 2018-08-14 | 2018-10-19 | 宜兴市宇能冶金设备制造有限公司 | Outer-cover type incudes vacuum annealing furnace mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022906A (en) * | 2010-10-28 | 2011-04-20 | 合肥高歌热处理应用技术有限公司 | Box-type resistance furnace |
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| CN102706145A (en) * | 2012-06-11 | 2012-10-03 | 山东理工大学 | Method for preparing feeding nozzle for continuous high-purity alumina melting furnace and continuous melting furnace |
| CN102701744A (en) * | 2012-06-11 | 2012-10-03 | 山东理工大学 | Preparation method for feeding nozzle for high-purity quartz continuous smelting furnace and continuous smelting furnace |
| CN102706145B (en) * | 2012-06-11 | 2014-03-12 | 山东理工大学 | Method for preparing feeding nozzle for continuous high-purity alumina melting furnace and continuous melting furnace |
| CN103471732A (en) * | 2013-08-29 | 2013-12-25 | 苏州工业园区华福科技有限公司 | Automatic temperature measurement device |
| CN104142062A (en) * | 2014-07-14 | 2014-11-12 | 洛阳市西格马炉业有限公司 | Ultrahigh temperature vacuum hot pressing furnace |
| CN107059143A (en) * | 2016-12-13 | 2017-08-18 | 无锡南方声学工程有限公司 | A kind of sealing structure of vacuum cleaning oven |
| CN106747464A (en) * | 2017-01-04 | 2017-05-31 | 广东工业大学 | ZrB2SiC ceramic heater and superhigh temperature firing equipment |
| CN107894441A (en) * | 2017-11-27 | 2018-04-10 | 洛阳西格马炉业股份有限公司 | A kind of local laser heating antioxygenic property test equipment and method of testing |
| CN107894441B (en) * | 2017-11-27 | 2023-09-01 | 洛阳西格马高温电炉有限公司 | Laser local heating oxidation resistance testing equipment and testing method |
| CN108676998A (en) * | 2018-08-14 | 2018-10-19 | 宜兴市宇能冶金设备制造有限公司 | Outer-cover type incudes vacuum annealing furnace mechanism |
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Open date: 20100728 |