CN107277946A - A kind of refractory ceramics heating plate - Google Patents
A kind of refractory ceramics heating plate Download PDFInfo
- Publication number
- CN107277946A CN107277946A CN201710588545.2A CN201710588545A CN107277946A CN 107277946 A CN107277946 A CN 107277946A CN 201710588545 A CN201710588545 A CN 201710588545A CN 107277946 A CN107277946 A CN 107277946A
- Authority
- CN
- China
- Prior art keywords
- parts
- heating plate
- refractory ceramics
- temperature
- electrode
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
Abstract
The invention belongs to high-temperature service technical field, and in particular to a kind of refractory ceramics heating plate；Including ceramic substrate, the conductive layer between substrate connects the electrode and wire of conductive layer, and the component of ceramic substrate includes：Silicon nitride, aluminum oxide, beryllium nitride, aluminium nitride, barium monoxide, yittrium oxide and rare earth compound, it is fabricated by by way of compressing and high temperature sintering, wherein, electrode is tungsten metal electrode, tungsten filament electrode resistance is smaller, can reduce the loss produced on electrode material.The production cost of the heating plate is relatively low, can provide higher heating-up temperature, and the thermal efficiency is higher, and power consumption is relatively small.
Description
Technical field
The invention belongs to high-temperature service technical field, and in particular to a kind of refractory ceramics heating plate.
Background technology
Electric furnace be it is a kind of the device that heat is heated to workpiece is converted electrical energy into by electrocaloric effect, medicine, change
Work, metallurgy, etc. multiple fields extensive use.There is electric furnace furnace atmosphere to be easily controlled, or even can be evacuated；Material is heated
It hurry up, heating-up temperature is high, easy control of temperature；Production process is easier to realize mechanization and automation；Labour health condition is good；Thermal effect
Rate is high；The characteristics of good product quality.
Wherein, electrothermal furnace is a kind of principal mode of electric furnace, including body of heater, calandria and circuit part, and it passes through heating
Body carries out heating heating to body of heater, and in-furnace temperature is controlled.Conventional heater includes metallic heating body and nonmetallic hair
Hot body etc., can apply to different scenes；Main metallic heating body includes Ni-Cr heating wires, and its maximum temperature is reachable
1200 DEG C, and the simple metal heater such as Mo-Si alloys, W, Mo；Nonmetal heating unit includes SiC heaters, and its highest can add
Heat is to 1600 DEG C, and LaCrO3 and graphite rod；But above calandria production cost is higher, and the heating temperature of METAL HEATING PROCESS body
Degree is relatively low, and insulation control requires very high, rather than the efficiency of heating surface of METAL HEATING PROCESS body is poor, and power consumption is very big.
The content of the invention
For problem above, it is an object of the invention to provide a kind of refractory ceramics heating plate, the heating plate can be provided
Higher heating-up temperature, more preferably, power consumption is relatively small for the efficiency of heating.
A kind of refractory ceramics heating plate, it is characterised in that：Including ceramic substrate, the conductive layer between substrate, connection
The electrode and wire of conductive layer.
The raw material components of the ceramic substrate include：70-80 parts of silicon nitride, 4-7 parts of aluminum oxide, 4-6 parts of beryllium nitride, nitridation
3-5 parts of aluminium, 1-3 parts of barium monoxide, 3-5 parts of yittrium oxide, 1-2 parts of rare earth compound.
It is preferred that, the component of the ceramic substrate includes：74-76 parts of silicon nitride, 5-6 parts of aluminum oxide, 5-6 parts of beryllium nitride,
3-4 parts of aluminium nitride, 2-3 parts of barium monoxide, 1-2 parts of rare earth oxide.
It is preferred that, the conductive layer is formed by screen printing mode.
It is preferred that, the welding electrode is metal tungsten electrode.
It is preferred that, the ceramic substrate is divided into having on upper substrate and infrabasal plate, upper substrate can be embedded in infrabasal plate just
Groove.
It is preferred that, the production method of the tungsten electrode is：It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through
200-400MPa pressure hydrostatic profile, is then fed into electrothermal furnace, sinters 1-2h by 1200-1300 DEG C of temperature, then
The high temperature sintering 3-4h at a temperature of 2800-2900 DEG C, is cooled to room temperature afterwards, obtains required tungsten electrode.
It is preferred that, the rare earth compound is one kind of lanthana, dysprosia and neodymia.
The manufacture method of refractory ceramics heating plate comprises the following steps：Ceramic substrate raw material is mixed in proportion, by ball
It is 60-70 DEG C of liquid paraffin that grinding machine grinding, which adds temperature, and blank is made, by blank after pug mill is rubbed and practiced in a mold
Extrusion forming, is then fed into electric furnace and is sintered in the atmosphere of nitrogen, and furnace temperature is 1750-1760 DEG C, Isothermal sinter 4-5h,
Then electric furnace is powered off, be cooled to after room temperature, respectively obtained the upper substrate and infrabasal plate of ceramic heating plate, use screen printing technique
The carbonaceous conductive layer in printing on infrabasal plate, then electrode is connected with conductive layer, upper substrate and infrabasal plate are then pressed into one
Body, refractory ceramics heating plate needed for obtaining.
A kind of refractory ceramics heating plate that the present invention is provided, compared with prior art, with advantages below：
The outer layer of the heating plate is ceramic substrate, and substrate is two layers, and conductive layer is arranged in the middle of substrate, passes through silk-screen printing
Formed, stabilized structure, heat resistance is good, and fuel factor is good, the electrically conductive layer of substrate provides good insulation protection, it is ensured that heating plate
Normal work, relative to simple metal calandria, the heating plate can provide higher heating-up temperature, and can reduce and be produced into
This.
The heating plate uses tungsten metal as electrode, and because the resistance of tungsten electrode is smaller, then the high current of electrothermal furnace passes through
When, thermal loss can be substantially reduced, so as to improve the heating efficiency of heater, kwh loss is reduced, graphite electricity is it also avoid
The drawbacks of other electrode material volumes such as pole are larger, the difficulty of reduction heating plate manufacture production.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Embodiment 1
It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through 200MPa pressure hydrostatic profile, is then fed into
In electrothermal furnace, 1h is sintered by 1200 DEG C of temperature, then the high temperature sintering 3h at a temperature of 2800 DEG C, is cooled to room temperature afterwards,
Obtain required tungsten electrode.
Weigh the raw material of ceramic substrate：70 parts of silicon nitride, 4 parts of aluminum oxide, 4 parts of beryllium nitride, 3 parts of aluminium nitride, barium monoxide 1
Part, 3 parts of yittrium oxide, 1 part of lanthana.Ceramic substrate raw material is mixed in proportion, it is 60 to add temperature by ball mill grinding
DEG C liquid paraffin, blank is made, by blank after pug mill is rubbed and practiced extrusion forming in a mold；It is then fed into electric furnace
Sintered in the atmosphere of nitrogen, furnace temperature is 1750 DEG C, and then electric furnace is powered off, be cooled to after room temperature by Isothermal sinter 4h, respectively
Obtain having on the upper substrate and infrabasal plate of ceramic heating plate, upper substrate and can be embedded in the groove of infrabasal plate just, use silk-screen printing
Technology prints carbonaceous conductive layer on infrabasal plate, then tungsten electrode is connected with conductive layer, then by upper substrate and infrabasal plate pressure
Integrator, refractory ceramics heating plate needed for obtaining.
Embodiment 2
It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through 400MPa pressure hydrostatic profile, is then fed into
In electrothermal furnace, 2h is sintered by 1300 DEG C of temperature, then the high temperature sintering 4h at a temperature of 2900 DEG C, is cooled to room temperature afterwards,
Obtain required tungsten electrode.
Weigh the raw material of ceramic substrate：80 parts of silicon nitride, 7 parts of aluminum oxide, 6 parts of beryllium nitride, 5 parts of aluminium nitride, barium monoxide 3
Part, 5 parts of yittrium oxide, 2 parts of dysprosia.Ceramic substrate raw material is mixed in proportion, it is 70 to add temperature by ball mill grinding
DEG C liquid paraffin, blank is made, by blank after pug mill is rubbed and practiced extrusion forming in a mold；It is then fed into electric furnace
Sintered in the atmosphere of nitrogen, furnace temperature is 1760 DEG C, and then electric furnace is powered off, be cooled to after room temperature by Isothermal sinter 5h, respectively
Obtain having on the upper substrate and infrabasal plate of ceramic heating plate, upper substrate and can be embedded in the groove of infrabasal plate just, use silk-screen printing
Technology prints carbonaceous conductive layer on infrabasal plate, then tungsten electrode is connected with conductive layer, then by upper substrate and infrabasal plate pressure
Integrator, refractory ceramics heating plate needed for obtaining.
Embodiment 3
It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through 300MPa pressure hydrostatic profile, is then fed into
In electrothermal furnace, 1.5h is sintered by 1250 DEG C of temperature, then the high temperature sintering 3.5h at a temperature of 2850 DEG C, is cooled to room afterwards
Temperature, obtains required tungsten electrode.
Weigh the raw material of ceramic substrate：75 parts of silicon nitride, 5 parts of aluminum oxide, 5 parts of beryllium nitride, 4 parts of aluminium nitride, barium monoxide 2
Part, 4 parts of yittrium oxide, 1 part of neodymia.Ceramic substrate raw material is mixed in proportion, it is 65 to add temperature by ball mill grinding
DEG C liquid paraffin, blank is made, by blank after pug mill is rubbed and practiced extrusion forming in a mold；It is then fed into electric furnace
Sintered in the atmosphere of nitrogen, furnace temperature is 1755 DEG C, and then electric furnace is powered off, be cooled to after room temperature by Isothermal sinter 4h, respectively
Obtain having on the upper substrate and infrabasal plate of ceramic heating plate, upper substrate and can be embedded in the groove of infrabasal plate just, use silk-screen printing
Technology prints carbonaceous conductive layer on infrabasal plate, then tungsten electrode is connected with conductive layer, then by upper substrate and infrabasal plate pressure
Integrator, refractory ceramics heating plate needed for obtaining.
Embodiment 4
It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through 350MPa pressure hydrostatic profile, is then fed into
In electrothermal furnace, 2h is sintered by 1200 DEG C of temperature, then the high temperature sintering 3h at a temperature of 2900 DEG C, is cooled to room temperature afterwards,
Obtain required tungsten electrode.
Weigh the raw material of ceramic substrate：80 parts of silicon nitride, 6 parts of aluminum oxide, 5 parts of beryllium nitride, 3 parts of aluminium nitride, barium monoxide 1
Part, 5 parts of yittrium oxide, 2 parts of lanthana.Ceramic substrate raw material is mixed in proportion, it is 70 to add temperature by ball mill grinding
DEG C liquid paraffin, blank is made, by blank after pug mill is rubbed and practiced extrusion forming in a mold；It is then fed into electric furnace
Sintered in the atmosphere of nitrogen, furnace temperature is 1760 DEG C, and then electric furnace is powered off, be cooled to after room temperature by Isothermal sinter 4h, respectively
Obtain having on the upper substrate and infrabasal plate of ceramic heating plate, upper substrate and can be embedded in the groove of infrabasal plate just, use silk-screen printing
Technology prints carbonaceous conductive layer on infrabasal plate, then tungsten electrode is connected with conductive layer, then by upper substrate and infrabasal plate pressure
Integrator, refractory ceramics heating plate needed for obtaining.
Performance test
The performance of the heating plate of the present embodiment and in the market common metal heating plate is contrasted, and obtains following data：
Table 1：The present embodiment and common metal heating plate performance comparison
By data above surface, the relatively common metal heater plate of heating plate that the present invention is provided has higher heating temperature
Degree, more preferably, service life is longer, and the thermal efficiency is higher, more energy efficient for pyroconductivity.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of refractory ceramics heating plate, it is characterised in that：Including ceramic substrate, the conductive layer between substrate, connection is led
The electrode and wire of electric layer, the component of the ceramic substrate include：70-80 parts of silicon nitride, 4-7 parts of aluminum oxide, beryllium nitride 4-6
Part, 3-5 parts of aluminium nitride, 1-3 parts of barium monoxide, 3-5 parts of yittrium oxide, 1-2 parts of rare earth compound.
2. a kind of refractory ceramics heating plate according to claim 1, it is characterised in that the component of the ceramic substrate includes：
74-76 parts of silicon nitride, 5-6 parts of aluminum oxide, 5-6 parts of beryllium nitride, 3-4 parts of aluminium nitride, 2-3 parts of barium monoxide, rare earth oxide 1-2
Part.
3. a kind of refractory ceramics heating plate according to claim 1, it is characterised in that：The rare earth compound be lanthana,
One kind of dysprosia and neodymia.
4. a kind of refractory ceramics heating plate according to claim 1, it is characterised in that：The conductive layer passes through silk-screen printing side
Formula is formed.
5. a kind of refractory ceramics heating plate according to claim 1, it is characterised in that：The welding electrode is metal tungsten electrode.
6. a kind of refractory ceramics heating plate according to claim 1, it is characterised in that：The ceramic substrate be divided into upper substrate and
The groove of infrabasal plate can be embedded in just by having on infrabasal plate, upper substrate.
7. a kind of refractory ceramics heating plate according to claim 4, it is characterised in that：The production method of the tungsten electrode is：
It it is 2-8 μm by particle diameter, tungsten powder of the purity higher than 99.9% passes through 200-400MPa pressure hydrostatic profile, is then fed into electric heating
In stove, 1-2h is sintered by 1200-1300 DEG C of temperature, then the high temperature sintering 3-4h at a temperature of 2800-2900 DEG C, Zhi Houleng
But room temperature is arrived, required tungsten electrode is obtained.
8. the manufacture method of refractory ceramics heating plate described in a kind of manufacturing claims 1, it is characterised in that：The ceramic heating plate
Procedure of processing include：Ceramic substrate raw material is mixed in proportion, the liquid that temperature is 60-70 DEG C is added by ball mill grinding
State paraffin, is made blank, by blank after pug mill is rubbed and practiced extrusion forming in a mold, be then fed into electric furnace in nitrogen
Sintered in atmosphere, furnace temperature is 1750-1760 DEG C, and then electric furnace is powered off, be cooled to after room temperature by Isothermal sinter 4-5h, point
The upper substrate and infrabasal plate of ceramic heating plate are not obtained, print carbonaceous conductive layer on infrabasal plate with screen printing technique, then
Electrode is connected with conductive layer, then upper substrate and infrabasal plate are pressed to integral, refractory ceramics heating plate needed for obtaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588545.2A CN107277946A (en) | 2017-07-19 | 2017-07-19 | A kind of refractory ceramics heating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588545.2A CN107277946A (en) | 2017-07-19 | 2017-07-19 | A kind of refractory ceramics heating plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107277946A true CN107277946A (en) | 2017-10-20 |
Family
ID=60078826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588545.2A Withdrawn CN107277946A (en) | 2017-07-19 | 2017-07-19 | A kind of refractory ceramics heating plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107277946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495993A (en) * | 2018-12-12 | 2019-03-19 | 武汉纺织大学 | The preparation method of one pressure embryo sintering flaxen fiber base carbon filament electric ceramic |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102385A (en) * | 1986-03-31 | 1987-10-14 | 陶氏化学公司 | The composition of new pottery, sintering metal or metal-powder and production method thereof |
| CN1849017A (en) * | 2005-04-05 | 2006-10-18 | 郜长福 | Silicon nitride heating body and its pressureless lower temperature sintering producing method |
| CN101318822A (en) * | 2008-07-04 | 2008-12-10 | 冷水江市明玉陶瓷工具有限责任公司 | Silicon nitride composite ceramics heater |
| CN103114268A (en) * | 2013-03-15 | 2013-05-22 | 福州赛瑞特新材料技术开发有限公司 | Bonded type boron nitride-graphite combined evaporation boat and preparation method thereof |
| CN203032020U (en) * | 2012-10-23 | 2013-07-03 | 昆山汉品电子有限公司 | Insulation and heat-conducting foil |
-
2017
- 2017-07-19 CN CN201710588545.2A patent/CN107277946A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102385A (en) * | 1986-03-31 | 1987-10-14 | 陶氏化学公司 | The composition of new pottery, sintering metal or metal-powder and production method thereof |
| CN1849017A (en) * | 2005-04-05 | 2006-10-18 | 郜长福 | Silicon nitride heating body and its pressureless lower temperature sintering producing method |
| CN101318822A (en) * | 2008-07-04 | 2008-12-10 | 冷水江市明玉陶瓷工具有限责任公司 | Silicon nitride composite ceramics heater |
| CN203032020U (en) * | 2012-10-23 | 2013-07-03 | 昆山汉品电子有限公司 | Insulation and heat-conducting foil |
| CN103114268A (en) * | 2013-03-15 | 2013-05-22 | 福州赛瑞特新材料技术开发有限公司 | Bonded type boron nitride-graphite combined evaporation boat and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495993A (en) * | 2018-12-12 | 2019-03-19 | 武汉纺织大学 | The preparation method of one pressure embryo sintering flaxen fiber base carbon filament electric ceramic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110577399B (en) | Multi-field coupling flash sintering system based on induction heating | |
| CN101913879B (en) | Silicon nitride material and preparation method thereof, as well as silicon nitride heating device and production method thereof | |
| CN106904950A (en) | A kind of low sintering 95 alumina ceramic material | |
| CN104341156A (en) | Silicon carbide based composite microwave-absorbing heating body composition and preparation method thereof | |
| CN106630974A (en) | Flash sintering method of low-temperature flash sintering ceramic and obtained ceramic and device thereof | |
| KR20170061755A (en) | Alumina complex ceramics composition and manufacturing method thereof | |
| CN104894641B (en) | It is a kind of high fine and close（LaxCa1‑x）B6Polycrystalline cathode material and preparation method thereof | |
| CN105236982B (en) | The enhanced graphite-base composite material of aluminium nitride and preparation technology | |
| CN104302021B (en) | A kind of for electrically heated heater and preparation technology thereof | |
| CN106376107A (en) | Large-power silicon nitride ceramic heating plate and inner-soft outer-hard manufacturing method thereof | |
| CN112876232B (en) | High-temperature NTC thermal sensitive ceramic material and discharge plasma sintering method thereof | |
| CN108010772A (en) | A kind of method that microwave heating prepares tin-oxygen-silver electric contact material | |
| CN102625504A (en) | High-temperature zirconium boride ceramic heating unit and manufacturing method thereof | |
| CN107396466A (en) | Electric slurry and preparation method thereof, thick film circuit chip thermal source and preparation method thereof | |
| CN104310976A (en) | Highly wear-resistant high-temperature ceramic | |
| CN107046739A (en) | High-power silicon nitride ceramics heating plate and its interior hard outer soft preparation method | |
| WO2023029465A1 (en) | Heating element and preparation method therefor | |
| CN107651964A (en) | A kind of AlN base composite ceramics and preparation method thereof | |
| CN104829227B (en) | A kind of zirconium oxide zirconium boride two-layer compound ceramic heating element and preparation method thereof | |
| CN107277946A (en) | A kind of refractory ceramics heating plate | |
| CN104326752A (en) | Low-temperature normal-pressure liquid-phase sintering preparation method of SiC ceramic | |
| CN103024954B (en) | Silicon nitride composite ceramic heating element materials and preparation method thereof | |
| CN104370554B (en) | A kind of silicon nitride composite ceramics heater material and preparation method thereof | |
| CN109112328A (en) | A kind of graphene/copper alloy and its preparation and application | |
| CN107739953A (en) | A kind of beryllium oxide base metal-ceramic material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171020 |
|
| WW01 | Invention patent application withdrawn after publication |