CN107543222A - A kind of electromagnetic oven composite ceramics panel and its preparation - Google Patents
A kind of electromagnetic oven composite ceramics panel and its preparation Download PDFInfo
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- CN107543222A CN107543222A CN201710604694.3A CN201710604694A CN107543222A CN 107543222 A CN107543222 A CN 107543222A CN 201710604694 A CN201710604694 A CN 201710604694A CN 107543222 A CN107543222 A CN 107543222A
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- electromagnetic oven
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Abstract
The present invention relates to a kind of electromagnetic oven composite ceramics panel and its preparation, includes highly heat-conductive carbon/ceramic ceramic face board, magnetic exothermic material and ceramic bottom board successively from top to bottom；The magnetic exothermic material is coated in the lower surface of the highly heat-conductive carbon/ceramic ceramic face board.Electromagnetic oven composite ceramics panel provided by the invention can be applied to heat in the electromagnetic oven of various pans, its the superiors is highly heat-conductive carbon/ceramic ceramic face board, heat conductivility is superior, heat can efficiently be passed to pan, its orlop ceramic bottom board thermal conductivity is relatively low, heat transfer caused by magnetic exothermic material has effectively been obstructed into inner coil and other electronic components, so as to extend electromagnetism furnace li`, avoid the conventional ceramic the bottom of a pan simultaneously causes pan to burst with magnetic exothermic material because of thermally matched difference, and the ceramic inner of carrying magnetic exothermic material coating is also easy to produce the problems such as abrasion is burst apart, expand use range of the electromagnetic oven to pan material.Magnetic heat generating pastes process advan is printed in batch production.
Description
Technical field
The present invention relates to electromagentic furnace technology field, particularly a kind of electromagnetic oven composite ceramics panel and its preparation.
Background technology
Electromagnetic oven is a kind of energy-efficient kitchen tools, and it utilizes electromagnetic inductive heating principle, is heated without naked light or conduction-type
It can just allow the bottom of a pan directly to produce heat, have that firing rate is fast, energy efficiency is high, energy-conserving and environment-protective, safe, easy to use etc. excellent
Point.But its pan used is in itself or pan part must be the material for having good magnetic conductivity, and the cooker of other materials is due to material
Expect that resistivity is excessive or too small, induction cooker load can be caused abnormal and start automatic protection, it is impossible to normal work.Patent
200820047032.7 disclose a kind of electromagnetic electric cooker with metal film ceramic inner, and one is covered with by the bottom outer surface in ceramic inner
Layer magnetic conductive metal film, to realize the purpose of ceramic inner Electromagnetic Heating, but due to magnetic exothermic material and ceramic thermal coefficient of expansion not
Matching, easily causes bursting for conventional ceramic pot.Meanwhile ceramic pan is scrubbed and moved and will also result in the generation of bottom magnetic exothermic material
The failure such as wear, burst apart.In addition, ceramic cooker conducts heat slowly in itself, magnetic exothermic material has by heat caused by electromagnetic induction
It may transmit downwards, so as to influence the life-span of electric elements inside electromagnetic oven.
The content of the invention
It is an object of the invention to provide a kind of electromagnetic oven composite ceramics panel and its preparation, solves existing electromagnetic oven to pot
The limitation of tool material, ceramic pan apply magnetic exothermic material outside, and easily abrasion is burst apart and heat transmits downwards meeting to electromagnetic oven inside
The problems such as electric elements service life has an impact.
To achieve these goals, adopt the following technical scheme that：
A kind of electromagnetic oven composite ceramics panel, include highly heat-conductive carbon/ceramic ceramic face board, magnetic exothermic material and ceramics successively from top to bottom
Bottom plate；The magnetic exothermic material is coated in the lower surface of the highly heat-conductive carbon/ceramic ceramic face board.
Further, the magnetic exothermic material is printed on the following table of highly heat-conductive carbon/ceramic ceramic face board using magnetic heat generating pastes
Face.The mode of lower surface of the magnetic exothermic material coated in highly heat-conductive carbon/ceramic ceramic face board is included brushing and printing etc., printing is most
Efficient and succinct mode.
Further, the magnetic exothermic material is made up of a central magnetic material membrane and several magnetic material rings.
Heat so can be produced according to the size of the bottom of a pan area.
Further, the magnetic exothermic material film is circular or rectangle.It is generally circular in cross section, but rectangle can also work,
It is higher than other shapes unit area coverage density.
Further, the highly heat-conductive carbon/ceramic ceramic face board composition is the one or more in aluminium nitride, silicon nitride and carborundum.
High heat-conducting ceramic panel panel requires thin and has certain intensity.
Further, the highly heat-conductive carbon/ceramic ceramic face board composition is the one or more in aluminium nitride, silicon nitride and carborundum
The composite formed with low temperature glass, silicon carbide whisker.
Further, the thickness of the highly heat-conductive carbon/ceramic ceramic face board is 1.0~2mm；The thickness of the ceramic bottom board be 2~
5mm.Highly heat-conductive carbon/ceramic ceramic face board and ceramic bottom board thickness mainly consider intensity and thermal conductivity.
Further, the ceramic bottom board is alumina ceramic plate or heat-resistant glass-ceramic plate.
Further, the magnetic heat generating pastes include the component of following mass percent：Ferroso-ferric oxide 10~20, carbon
Fiber 15~35, silver powder 30~45, ZnO-B2O3-P2O5Cryogenic glass powder 5~8, pine tar alcoholic solvent 9~15, ethyl cellulose increase
Mould agent 3~4.
The preparation of above-mentioned electromagnetic oven composite ceramics panel, is mainly included the following steps that：
（1）Magnetic exothermic material is uniformly mixed into slurry；
（2）According to the prefabricated galley of the size of highly heat-conductive carbon/ceramic ceramic face board；Slurry is printed onto highly heat-conductive carbon/ceramic ceramic face board lower surface；
（3）Highly heat-conductive carbon/ceramic ceramic face board with heat generating pastes is overlapped together with ceramic bottom board, in 600~900 DEG C of also Primordial Qi
3~50 minutes are incubated in atmosphere stove.
Magnetic exothermic material can also be coated in the upper surface of ceramic bottom board by the present invention.
Compared with prior art, electromagnetic oven composite ceramics panel provided by the invention can be applied to heat the electricity of various pans
In magnetic stove, its superiors is highly heat-conductive carbon/ceramic ceramic face board, and heat conductivility is superior, heat can efficiently be passed into pan, it is most lower
Layer ceramic bottom board thermal conductivity is relatively low, has effectively obstructed heat transfer caused by magnetic exothermic material to inner coil and other electricity
In sub- component, so as to extend electromagnetism furnace li`, while the conventional ceramic the bottom of a pan is avoided with magnetic exothermic material because of thermally matched difference
And cause pan to burst, and the ceramic inner of carrying magnetic exothermic material coating is also easy to produce the problems such as abrasion is burst apart, and expands electromagnetism
Use range of the stove to pan material.It is more beneficial for producing in batches using printing magnetic heat generating pastes technique.
Brief description of the drawings
Fig. 1 be magnetic exothermic material for it is circular when electromagnetic oven composite ceramics panel vertical section structure schematic diagram, wherein 1-
Highly heat-conductive carbon/ceramic ceramic face board, 2- magnetic exothermic materials, 3- ceramic bottom boards；
Fig. 2 is the structural representation that magnetic exothermic material highly heat-conductive carbon/ceramic ceramic face board is coated when magnetic exothermic material is circular；Wherein
4- central magnetic material membranes, 5- magnetic material rings；
Fig. 3 is electromagnetic oven composite ceramics panel vertical section structure schematic diagram when magnetic exothermic material is rectangle, and wherein 1- height is led
Thermal Ceramics panel, 2- magnetic exothermic materials, 3- ceramic bottom boards；
Fig. 4 is the structure schematic diagram that magnetic exothermic material highly heat-conductive carbon/ceramic ceramic face board is coated when magnetic exothermic material is rectangle；Wherein 4-
Central magnetic material membrane, 5- magnetic material rings.
Embodiment
To make the purpose of the present invention, technical scheme clearer, the present invention is made below in conjunction with accompanying drawing further detailed
Thin description.
Embodiment 1
As depicted in figs. 1 and 2, a kind of electromagnetic oven composite ceramics panel, including highly heat-conductive carbon/ceramic ceramic face board 1, the and of magnetic exothermic material 2
Ceramic bottom board 3.According to 10% ferroso-ferric oxide, 35% carbon fiber, 30% silver powder, 6%ZnO-B2O3-P2O5Cryogenic glass powder, 15% pine
The mass ratio of oleyl alcohol solvent, 4% ethyl cellulose plasticizer, above-mentioned material is uniformly mixed into the slurry with certain fluidity；
It is filled circles, the galley of one annulus of outside band according to the prefabricated centre of the size of highly heat-conductive carbon/ceramic ceramic face board 1；Slurry prints
To the lower surface of highly heat-conductive carbon/ceramic ceramic face board 1.The ceramic bottom board 3 of devitrified glass material after drying with thickness 5mm overlaps together,
3 minutes are incubated in 620 DEG C of reducing atmosphere stove, that is, obtains being made up of a central magnetic material membrane 4 and a magnetic material ring 5
, be adapted to electromagnetic oven composite ceramics panel.
Embodiment 2
As shown in Figure 3 and Figure 4, a kind of electromagnetic oven composite ceramics panel, including highly heat-conductive carbon/ceramic ceramic face board 1, the and of magnetic exothermic material 2
Ceramic bottom board 3.According to 20% ferroso-ferric oxide, 15% carbon fiber, 45% silver powder, 8%ZnO-B2O3-P2O5Cryogenic glass powder, 9% pine tar
The mass ratio of alcoholic solvent, 3% ethyl cellulose plasticizer, above-mentioned material is uniformly mixed into the slurry with certain fluidity；Press
The prefabricated centre of size according to highly heat-conductive carbon/ceramic ceramic face board 1 is rectangle, the galley of 2 straight-flanked rings of outside band；Slurry is printed onto
The ZnO-B of+10% silicon carbide whisker of 60% aluminum oxide+30%2O3-P2O5On the ceramic green tape thick 1.5mm of cryogenic glass powder, drying
It is afterwards the ZnO-B of 60% aluminum oxide+40% with 3 composition of layer2O3-P2O5Low temperature glass, gross thickness 4.5mm ceramic green tape are laminated on
Together, 50 minutes are incubated in 850 DEG C of reducing atmosphere stove, that is, obtained by a central magnetic material rectangular film 4 and two magnetic
Property the composition of material rectangular ring 5, be adapted to the composite ceramics panel of electromagnetic oven.Ceramic layer with silicon carbide whisker is high heat conduction
Ceramic panel 1, thicker aluminum oxide+low temperature glass layer heat conductivility is poor, as ceramic bottom board 3.
Above example is only that the embodiment of the present invention is described, and not the scope of the present invention is carried out
Limit, those skilled in the art can also do numerous modifications and variations on the basis of existing technology, such as magnetic can be used to send out
Hot stainless steel substrates replace the magnetic exothermic material film of printing, and on the premise of design spirit of the present invention is not departed from, this area is common
The all variations and modifications that engineers and technicians make to technical scheme, claims of the present invention all should be fallen into
In the protection domain of determination.
Claims (10)
1. a kind of electromagnetic oven composite ceramics panel, it is characterised in that include highly heat-conductive carbon/ceramic ceramic face board successively from top to bottom, magnetic is sent out
Hot material and ceramic bottom board；The magnetic exothermic material is coated in the lower surface of the highly heat-conductive carbon/ceramic ceramic face board.
2. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the magnetic exothermic material uses magnetic
Heat generating pastes are printed on the lower surface of highly heat-conductive carbon/ceramic ceramic face board.
3. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the magnetic exothermic material is by one
Heart magnetic material film and several magnetic material rings form.
4. electromagnetic oven composite ceramics panel according to claim 3, it is characterised in that the magnetic exothermic material film is circular
Or rectangle.
5. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the highly heat-conductive carbon/ceramic ceramic face board composition is
One or more in aluminium nitride, silicon nitride and carborundum.
6. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the highly heat-conductive carbon/ceramic ceramic face board composition is
The composite that one or more in aluminium nitride, silicon nitride and carborundum form with low temperature glass, silicon carbide whisker.
7. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the thickness of the highly heat-conductive carbon/ceramic ceramic face board
For 1.0~2mm；The thickness of the ceramic bottom board is 2~5mm.
8. electromagnetic oven composite ceramics panel according to claim 1, it is characterised in that the ceramic bottom board is aluminium oxide ceramics
Plate or heat-resistant glass-ceramic plate.
9. electromagnetic oven composite ceramics panel according to claim 2, it is characterised in that the magnetic heat generating pastes include following
The component of mass percent：Ferroso-ferric oxide 10~20, carbon fiber 15~35, silver powder 30~45, ZnO-B2O3-P2O5Low temperature glass
Glass powder 5~8, pine tar alcoholic solvent 9~15, ethyl cellulose plasticizer 3~4.
10. according to the preparation of any one of the claim 1-9 electromagnetic oven composite ceramics panels, it is characterised in that mainly include
Following steps：
（1）Magnetic exothermic material is uniformly mixed into slurry；
（2）According to the prefabricated galley of the size of highly heat-conductive carbon/ceramic ceramic face board；Slurry is printed onto highly heat-conductive carbon/ceramic ceramic face board lower surface；
（3）Highly heat-conductive carbon/ceramic ceramic face board with heat generating pastes is overlapped together with ceramic bottom board, in 600~900 DEG C of also Primordial Qi
3~50 minutes are incubated in atmosphere stove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710604694.3A CN107543222B (en) | 2017-07-24 | 2017-07-24 | A kind of electromagnetic oven composite ceramics panel and its preparation |
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| CN201710604694.3A CN107543222B (en) | 2017-07-24 | 2017-07-24 | A kind of electromagnetic oven composite ceramics panel and its preparation |
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| CN107543222B CN107543222B (en) | 2019-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111958819A (en) * | 2020-07-24 | 2020-11-20 | 汕头大学 | Novel purple sand inner container and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448453A (en) * | 2003-04-16 | 2003-10-15 | 广东德昕科技有限公司 | Electromagnetic induction exothermic paint and prep. thereof |
| CN200941697Y (en) * | 2006-07-20 | 2007-08-29 | 张敬胜 | Electromagnetic heater |
| CN201216466Y (en) * | 2008-06-12 | 2009-04-08 | 崔珂梅 | Electromagnetic heating heat-proof ceramic and glass ovenware |
| CN205579672U (en) * | 2016-04-07 | 2016-09-14 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating equipment and be used for panel of electromagnetic heating equipment |
| CN106810915A (en) * | 2017-01-22 | 2017-06-09 | 汕头大学 | A kind of novel magnetic exothermic paint |
-
2017
- 2017-07-24 CN CN201710604694.3A patent/CN107543222B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448453A (en) * | 2003-04-16 | 2003-10-15 | 广东德昕科技有限公司 | Electromagnetic induction exothermic paint and prep. thereof |
| CN200941697Y (en) * | 2006-07-20 | 2007-08-29 | 张敬胜 | Electromagnetic heater |
| CN201216466Y (en) * | 2008-06-12 | 2009-04-08 | 崔珂梅 | Electromagnetic heating heat-proof ceramic and glass ovenware |
| CN205579672U (en) * | 2016-04-07 | 2016-09-14 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating equipment and be used for panel of electromagnetic heating equipment |
| CN106810915A (en) * | 2017-01-22 | 2017-06-09 | 汕头大学 | A kind of novel magnetic exothermic paint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111958819A (en) * | 2020-07-24 | 2020-11-20 | 汕头大学 | Novel purple sand inner container and preparation process thereof |
| CN111958819B (en) * | 2020-07-24 | 2022-05-03 | 汕头大学 | Purple sand inner container and preparation process thereof |
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| Publication number | Publication date |
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| CN107543222B (en) | 2019-05-24 |
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