CN101212848A - Heating unit of infrared electric heating plate and producing method - Google Patents
Heating unit of infrared electric heating plate and producing method Download PDFInfo
- Publication number
- CN101212848A CN101212848A CNA2006101351015A CN200610135101A CN101212848A CN 101212848 A CN101212848 A CN 101212848A CN A2006101351015 A CNA2006101351015 A CN A2006101351015A CN 200610135101 A CN200610135101 A CN 200610135101A CN 101212848 A CN101212848 A CN 101212848A
- Authority
- CN
- China
- Prior art keywords
- heating plate
- infrared electric
- electric heating
- infrared
- conducting material
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a heating element of an infrared electric hot plate and a preparation method thereof. The weight percentages of the components of the infrared electric hot plate are: 1 to 30 percent of conductive materials, 30 to 92 percent of heat conduction materials, 5 to 50 percent of polymer adhesive and 2 to 10 percent of toughener. The preparation method relates to the followings: the front part of the heating element is made through thermofixation or hot press molding, then under the protection of nitrogen or inert gas, the front part is carbonized for 3 to 12 hours at a high temperature ranging from 900 DEG C to 2200 DEG C, thus obtaining the heating element of an infrared electric hot plate. The technique is simple with a low cost. The infrared electric hot plate can directly produce infrared radiation with high efficiency of energy conversion by using alternating or direct currents of 6 to 380V and the self of the infrared electric hot plate is a heating element which needs no substrates. Both the upper and lower surfaces of the heating element can produce infrared radiation, thus greatly enlarging the radiation area and improving heating efficiency. As a novel infrared heating element material, the invention can not only be extensively applied to technics such as heating, baking and heat treatment in agriculture and industry, but also can be applied to medical care and heating in winter, etc., with important application value and extensive application prospect.
Description
Technical field:
The present invention relates to the composition and the technology of preparing of functional heating unit of infrared electric heating plate material, particularly a kind of composition and preparation method with heating unit of infrared electric heating plate material of monolithic conductive infrared radiation.
Background technology:
Along with a large amount of consumption of the mankind to fossil energy, the deposit of fossil energy is day by day exhausted, and environmental pollution is on the rise, the mode of heating of a kind of cleaning of an urgent demand, and can utilize the energy expeditiously.Infrared heating technique is exactly new results in the technical field of heating in recent years.Infrared light supply energy transformation ratio height, the suitable object of the wavelength of radiation absorbs, and power is big, and fire safety, so Infrared Radiation Heating Technology are that a kind of perfect energy sources is utilized mode.
Infrared radiation heating has purposes widely in medical treatment, industrial and agricultural production and daily life.Well-known people is an infrared emitter, also is infrared absorber.The overwhelming majority of human body is a carbohydrate, and water has accounted for the about 70% of human body, thus human body to ultrared absorption spectra near water, at infrared band and middle-infrared band continuous absorption is arranged all.Generally speaking, radiation wavelength is long more, and absorption of human body is strong more, and it is shallow more to enter the degree of depth of human body.0.76-2.5 the short infrared ray radiation human body of μ m approximately can arrive subcutaneous 1cm.Short-wave infrared can directly be penetrated into corium hypodermis and muscle, and heating blood causes blood vessel dilatation, accelerates blood circulation.LONG WAVE INFRARED can directly arrive at corium, can promote the microcirculation of blood vessel tip greatly.Infrared radiation also stimulates nerve endings, meridian point etc., and passes the signal along to other positions and nerve center, evokes the pulse of whole body and accelerates, and blood pressure reduces, metabolism is active and immunity strengthens.This effect can also be after infrared radiation stops, the continuity long duration.
Use the infrared radiation object, atom, the molecule of nearly surf zone just absorb energy from electromagnetic wave, the aggravation motion; Heat energy also can raise whole object temperature to internal delivery simultaneously.So the thermal effect of infrared radiation is better than other wave band, the utilization Infrared Radiation Heating Technology, only the short several hrs of need just can be grain heat-drying, and flavor does not change colour.Therefore, the infrared radiation heating baking is energy savings greatly, improves product quality and production efficiency.Not only be used for now the paint drying of appliance shells such as processed such as food, medicine, cotton wool, chemical fiber yarn, cloth, timber, articles made of bamboo and refrigerator, washing machine, also can promote to numerous industries such as medical herding, breed, chemical industry, automobile and papermaking, printing, electronics.
The present source of infrared radiation generally is made of heater (thermal source), infrared coating and matrix and relevant annex.The effect of heater is to provide enough heat energy to infrared coating, to guarantee the necessary temperature of radiating layer normal transmission infrared ray.What adopt usually is electrothermal, gas combustion heat and steam heat.The function of infrared coating is to launch required infrared ray at a certain temperature.Coating material commonly used has titanium dioxide, manganese dioxide, silicon dioxide and carborundum etc.Matrix is used for supporting thermal source and coating.Infrared radiant material is coated in the surface of matrix, forms coating.The heat energy that thermal source sends is delivered to infrared radiating coating by matrix, gives off infrared ray at coating surface.From its operation principle as can be known, heat energy will just can be delivered to infrared coating by matrix, and this mode is easy to the produce power loss, and normally earlier electric energy is changed into heat energy, both by electric heating, again by heat to infrared radiation, so electric energy to convert the infrared radiation energy efficiency to lower.
Summary of the invention:
The purpose of this invention is to provide a kind of heating unit of infrared electric heating plate and preparation method thereof, to improve the infrared radiation conversion efficiency of electric energy.This infrared electric heating plate integrates heater, matrix and infrared coating, can be converted into infrared energy to electric energy, improves the heat efficiency greatly; This heating unit of infrared electric heating plate also has good materials processing performance and serviceability.
Technical scheme of the present invention is:
The invention provides a kind of heating unit of infrared electric heating plate, it is made of electric conducting material, heat conducting material, polymer bonding agent and flexibilizer.
The used electric conducting material of heating unit of infrared electric heating plate of the present invention preparation can be that (granularity is 20～60nm) and carbon nano-tube (single wall, double-walled, multi-walled carbon nano-tubes, one or more of the material such as grade of diameter 1.4nm～100nm) for crystalline flake graphite (granularity is 25～50 μ m), conductive black.The weight content of electric conducting material can be at 1%-30%, and optimum range is at 5%-20%.
The used heat conducting material of heating unit of infrared electric heating plate of the present invention preparation can be in carborundum (granularity is 4～25 μ m), boride (granularity is 5～30 μ m) and the silicon dioxide (granularity is 5～30 μ m) one or more.The weight content of heat conducting material can be at 92%-30%, and optimum range is at 80%-50%.
The used polymer bonding agent of heating unit of infrared electric heating plate of the present invention's preparation can be one or more compound formations in the polymer such as epoxy resin, polyvinyl chloride, phenolic resins and polyethylene.The weight content of polymer bonding agent can be at 5%-50%, and optimum range is at 10%-30%.
The used flexibilizer of heating unit of infrared electric heating plate of the present invention's preparation is ethanol, glycerine or polyvinyl alcohol etc.The weight content of flexibilizer can be at 2%-10%, and optimum range is at 2%-5%.
The preparation of heating unit of infrared electric heating plate among the present invention: at the heater presoma, when adopting thermosetting resin, with the method for being heating and curing; When adopting thermoplastic resin, adopt pressure sintering.Take off after naturally cooling to room temperature, obtain the heating unit of infrared electric heating plate presoma; Subsequently to presoma under nitrogen or inert gas shielding, 900-2200 ℃ high temperature carbonization 3-12 hour, obtain heating unit of infrared electric heating plate.
Advantage of the present invention:
1, the heating unit of infrared electric heating plate that adopts the present invention to obtain integrates heater, infrared coating and matrix, and this infrared electric heating plate can use 6-380V AC and DC electricity, directly produces infrared radiation, the energy conversion efficiency height.
2, infrared electric heating plate of the present invention self is a heater, without matrix, the heater upper and lower surface can produce infrared radiation, increased swept area greatly, having improved heating efficiency, is a class new infrared heating material, not only can be widely used in the technologies such as heating, oven dry and heat treatment of industrial or agricultural, but also can be used for fields such as medical treatment and warming, have important Practical significance.
3, preparation technology of the present invention is simple, and is with low cost, easy to implement.
Description of drawings
Fig. 1. heating unit of infrared electric heating plate preparation flow schematic diagram.
Fig. 2. the spectral radiance curve of the heating unit of infrared electric heating plate of embodiment 1 preparation.
Fig. 3. the spectral radiance curve of the heating unit of infrared electric heating plate of embodiment 2 preparations.
Fig. 4. the spectral radiance curve of the heating unit of infrared electric heating plate of embodiment 3 preparations.
Fig. 5. the spectral radiance curve of the heating unit of infrared electric heating plate of embodiment 4 preparations.
Embodiment
The preparation process of heating unit of infrared electric heating plate of the present invention is as follows:
1, the preparation of infrared electric heating plate presoma
When adopting thermosetting resin to do bonding agent, with the method for being heating and curing: at first electric conducting material and heat conducting material are made uniform mixture in mixer, join subsequently in the bonding agent that is stirring, after stirring, add flexibilizer, continue to stir and make uniform mixture.Said mixture is laminated on twin-roll machine, and then on vulcanizing press, 65-150 ℃ solidified 0.5-5 hour down, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.
When adopting thermoplastic resin, adopt pressure sintering: at first electric conducting material and heat conducting material are made uniform mixture in mixer, join subsequently in the bonding agent, after stirring again, add flexibilizer, continue to stir and make uniform mixture.Said mixture on vulcanizing press, was laminated under 150-300 ℃, 5-20MPa in hot pressing 10-30 minute, obtain the infrared electric heating plate presoma after naturally cooling to room temperature.
2, the preparation of heating unit of infrared electric heating plate
With above-mentioned presoma under nitrogen or inert gas shielding 900-2200 ℃ charing 3-12 hour, obtain heating unit of infrared electric heating plate.The concrete preparation flow of heating unit of infrared electric heating plate is seen Fig. 1.
Embodiment 1 crystalline flake graphite (granularity is 45 μ m), carborundum (granularity is 15 μ m), epoxy resin, ethanol are 2.5: 88: 7.5 according to weight ratio: 2 mix, after making the 1mm thin slice on the twin-roll machine, 65 ℃ were heating and curing 3 hours on vulcanizing press, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 6 hours under 900 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 0.49w/cm that infra-red emission is measured its surperficial maximum spectral radiance
2/ sr/m, corresponding wavelength is 2.41 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 929.3 ℃ of (see figure 2)s.
Embodiment 3 multi-walled carbon nano-tubes (average diameter is 60nm), boron nitride (granularity is 15 μ m), acrylic resin and polyvinyl alcohol were by weight 1: 10: 8: 1 mixes, then on vulcanizing press, 1mm thickness sheet was made in hot pressing in 15 minutes under 160 ℃, 15MPa, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 3 hours under 900 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain infrared electric heating plate.It is 1.53w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.22 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 1032.0 ℃ of (see figure 4)s.
Embodiment 4 double-walled carbon nano-tubes (average diameter is 1.9nm) and conductive black (granularity is 60nm) mixture (weight ratio 1: 1), boron nitride (granularity is 25 μ m) and silicon dioxide (granularity is 20 μ m) mixture (weight ratio 1: 2), Corvic and glycerine were by weight 6: 10: 3: 1 mixes, then on vulcanizing press, 1mm thickness sheet was made in hot pressing in 30 minutes under 180 ℃, 10MPa, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 5 hours under 1200 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 1.32w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.41 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 929.3 ℃ of (see figure 5)s.
Embodiment 5 multi-walled carbon nano-tubes (average diameter 60nm) and crystalline flake graphite (granularity is 45 μ m) mixture (weight ratio 1: 2), carborundum (granularity is 15 μ m), phenolic resins, polyvinyl alcohol were by weight 2: 13: 4: 1 mixes, after making 1mm thickness sheet on the twin-roll machine, on vulcanizing press, 150 ℃ solidified 0.5 hour down, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 6 hours under 1800 ℃, argon atmospher of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 1.51w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.33 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 970.6 ℃.
Embodiment 6 conductive blacks (granularity is 20nm) and crystalline flake graphite (granularity is 45 μ m) mixture (weight ratio 1: 3), silicon dioxide (granularity is 20 μ m), epoxy resin, ethanol were by weight 15: 19: 15: 1 mixes, with said mixture after making 1mm thickness sheet on the twin-roll machine, on vulcanizing press, 65 ℃ solidified 3 hours down, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 5 hours under 2200 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 0.64w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.38 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 944.0 ℃.
Embodiment 7 conductive blacks (granularity is 60nm), carborundum (granularity is 15 μ m), phenolic resins, glycerine were by weight 6: 10: 3: 1 mixes, with said mixture after making 1mm thickness sheet on the twin-roll machine, on vulcanizing press, 150 ℃ solidified 0.5 hour down, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With charing under 1800 ℃ of above-mentioned infrared electric heating plate presomas, the blanket of nitrogen 12 hours, obtain heating unit of infrared electric heating plate.It is 0.54w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.45 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 909.0 ℃.
Embodiment 9 multi-walled carbon nano-tubes (average diameter is 40nm) and crystalline flake graphite (granularity is 45 μ m) mixture (weight ratio 1: 5), carborundum (granularity is 20 μ m), epoxy resin, ethanol were by weight 15: 19: 15: 1 mixes, with said mixture after making 1mm thickness sheet on the twin-roll machine, on vulcanizing press, 65 ℃ solidified 3 hours down, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 5 hours under 1800 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 0.64w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.38 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 944.0 ℃.
Embodiment wall more than 10 carbon mitron (average diameter is 60nm), silicon dioxide (granularity is 20 μ m), acrylic resin and polyvinyl alcohol were by weight 10: 24: 15: 1 mixes, 1mm thickness sheet was made in hot pressing in 12 minutes under 160 ℃, 20MPa on the vulcanizing press then, obtained the infrared electric heating plate presoma after naturally cooling to room temperature.With the charing 6 hours under 900 ℃, blanket of nitrogen of above-mentioned infrared electric heating plate presoma, obtain heating unit of infrared electric heating plate.It is 0.63w/cm that infra-red emission is measured its maximum spectral radiance of surface
2/ sr/m, corresponding wavelength is 2.53 μ m, heating unit of infrared electric heating plate maximum radiation temperature is 872.0 ℃.
Claims (10)
1. a heating unit of infrared electric heating plate is characterized in that, described heating unit of infrared electric heating plate is made of electric conducting material, heat conducting material, polymer bonding agent and flexibilizer, and by weight percentage, this heater raw material comprises:
Electric conducting material 1%-30%;
Heat conducting material 92%-30%;
Bonding agent 5%-50%;
Flexibilizer 2%-10%.
2. according to the described heating unit of infrared electric heating plate of claim 1, it is characterized in that by weight percentage, the preferred group of this heater raw material becomes:
Electric conducting material 5%-20%;
Heat conducting material 80%-50%;
Bonding agent 10%-30%;
Flexibilizer 2%-5%.
3. according to the preparation method of the described heating unit of infrared electric heating plate of claim 1, it is characterized in that, comprise the steps:
(1) electric conducting material, heat conducting material, polymer bonding agent and flexibilizer are mixed, be heating and curing then or hot-forming laminating;
(2) take out behind the natural cooling, obtain the infrared electric heating plate presoma; The weight of used infrared electric heating plate presoma consists of:
Electric conducting material 1%-30%;
Heat conducting material 92%-30%;
Bonding agent 5%-50%;
Flexibilizer 2%-10%;
(3) with above-mentioned infrared electric heating plate presoma under nitrogen or inert gas shielding, 900-2200 ℃ high temperature carbonization 3-12 hour, obtain heating unit of infrared electric heating plate.
4. according to the preparation method of the described heating unit of infrared electric heating plate of claim 3, it is characterized in that electric conducting material is one or more compound formations of crystalline flake graphite, carbon nano-tube, conductive black.
5. according to the preparation method of the described heating unit of infrared electric heating plate of claim 3, it is characterized in that heat conducting material is one or more of carborundum, silicon dioxide, boride.
6. according to the preparation method of the described heating unit of infrared electric heating plate of claim 3, it is characterized in that bonding agent is the polymer bonding agent, comprise one or more compound formations of epoxy resin, ABS resin, phenolic resins, Corvic and acrylic resin.
7. according to the preparation method of the described heating unit of infrared electric heating plate of claim 3, it is characterized in that flexibilizer is ethanol, glycerine or polyvinyl alcohol.
8. according to the preparation method of claim 3 or 6 described heating unit of infrared electric heating plate, it is characterized in that, in the infrared electric heating plate presoma preparation process, when adopting thermosetting resin, with the method for being heating and curing as bonding agent; Electric conducting material, heat conducting material are joined in the resin, and after mixing with flexibilizer, roll-in is laminated, and is heating and curing then, and curing temperature is 65-150 ℃, and the time is 0.5-5 hour.
9. according to the preparation method of claim 3 or 6 described heating unit of infrared electric heating plate, it is characterized in that, in the infrared electric heating plate presoma preparation process, when adopting thermoplastic resin, use pressure sintering as bonding agent; Electric conducting material, heat conducting material and thermoplastic resin and flexibilizer are mixed, hot-forming laminating, heating-up temperature is 150-300 ℃, and the time is 10-30 minute, and pressure is 5-20MPa.
10. according to the preparation method of the described heating unit of infrared electric heating plate of claim 3, it is characterized in that the thickness of thin slice is 0.1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101351015A CN100518415C (en) | 2006-12-27 | 2006-12-27 | Heating unit of infrared electric heating plate and producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101351015A CN100518415C (en) | 2006-12-27 | 2006-12-27 | Heating unit of infrared electric heating plate and producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101212848A true CN101212848A (en) | 2008-07-02 |
| CN100518415C CN100518415C (en) | 2009-07-22 |
Family
ID=39612412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101351015A Expired - Fee Related CN100518415C (en) | 2006-12-27 | 2006-12-27 | Heating unit of infrared electric heating plate and producing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100518415C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8253122B2 (en) | 2009-09-11 | 2012-08-28 | Tsinghua University | Infrared physiotherapeutic apparatus |
| US8278604B2 (en) | 2009-08-14 | 2012-10-02 | Tsinghua University | Carbon nanotube heater-equipped electric oven |
| CN102740513A (en) * | 2011-04-01 | 2012-10-17 | 陈羿轲 | Heated substrate |
| US8294098B2 (en) | 2007-03-30 | 2012-10-23 | Tsinghua University | Transmission electron microscope micro-grid |
| CN102838369A (en) * | 2012-09-19 | 2012-12-26 | 张永利 | Microcrystalline ceramic composite electrothermal material and method for preparing far-infrared ceramic electrothermal plate by using same |
| US8357881B2 (en) | 2009-08-14 | 2013-01-22 | Tsinghua University | Carbon nanotube fabric and heater adopting the same |
| US8841588B2 (en) | 2009-03-27 | 2014-09-23 | Tsinghua University | Heater |
| CN105315795A (en) * | 2015-12-08 | 2016-02-10 | 赵建南 | Intelligent high-temperature-resistant far infrared conductive heating energy-saving material |
| CN105637977A (en) * | 2013-11-22 | 2016-06-01 | 东洋德来路博株式会社 | Carbon heating composition and carbon heating element |
| CN105803294A (en) * | 2015-06-04 | 2016-07-27 | 卞直先 | Electric heating piece generating biological waves after being electrified and preparing method of electric heating piece |
| CN106046666A (en) * | 2016-07-01 | 2016-10-26 | 宜兴市凯诚模具有限公司 | Manufacturing method of high-performance nonmetal mold |
| CN106079465A (en) * | 2016-07-01 | 2016-11-09 | 宜兴市凯诚模具有限公司 | A kind of manufacture method of polymeric mold |
| CN108481852A (en) * | 2018-03-21 | 2018-09-04 | 谢语思 | A kind of infrared electrothermal film and preparation method thereof |
| CN111954324A (en) * | 2020-07-30 | 2020-11-17 | 东风商用车有限公司 | Vehicle portable far infrared electric heating plate and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659906A (en) * | 1984-01-20 | 1987-04-21 | Vitronics Corporation | Infrared panel emitter and method of producing the same |
| CN86100500A (en) * | 1986-02-06 | 1987-09-30 | 北京市太阳能研究所 | A kind of coating type electric heating element and technology |
| CN1004917B (en) * | 1987-03-24 | 1989-07-26 | 赵志强 | Fluorine-resin complex electrocaloric film |
| JP2627506B2 (en) * | 1987-06-09 | 1997-07-09 | 東海高熱工業株式会社 | Far infrared heater |
| CN1031026C (en) * | 1993-04-14 | 1996-02-14 | 刘秋云 | Infrared electrothermal film heater making and application |
| CN1103743A (en) * | 1993-12-11 | 1995-06-14 | 李爱民 | Producing method for far-infrared compound electric-heating element |
| JP2003332028A (en) * | 2002-05-09 | 2003-11-21 | Mitsubishi Pencil Co Ltd | Resistance heating element and its manufacturing method |
| CN1671254A (en) * | 2005-02-07 | 2005-09-21 | 杨葆华 | A formulation of semiconductor surface electrothermal coat and making method thereof |
| CN100536623C (en) * | 2005-12-19 | 2009-09-02 | 贵阳铝镁设计研究院 | Composite high temperature electrical heating element and its making method |
-
2006
- 2006-12-27 CN CNB2006101351015A patent/CN100518415C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8294098B2 (en) | 2007-03-30 | 2012-10-23 | Tsinghua University | Transmission electron microscope micro-grid |
| US8841588B2 (en) | 2009-03-27 | 2014-09-23 | Tsinghua University | Heater |
| US8278604B2 (en) | 2009-08-14 | 2012-10-02 | Tsinghua University | Carbon nanotube heater-equipped electric oven |
| US8357881B2 (en) | 2009-08-14 | 2013-01-22 | Tsinghua University | Carbon nanotube fabric and heater adopting the same |
| US8253122B2 (en) | 2009-09-11 | 2012-08-28 | Tsinghua University | Infrared physiotherapeutic apparatus |
| CN102019039B (en) * | 2009-09-11 | 2013-08-21 | 清华大学 | Infrared physiotherapy apparatus |
| CN102740513A (en) * | 2011-04-01 | 2012-10-17 | 陈羿轲 | Heated substrate |
| CN102838369A (en) * | 2012-09-19 | 2012-12-26 | 张永利 | Microcrystalline ceramic composite electrothermal material and method for preparing far-infrared ceramic electrothermal plate by using same |
| CN102838369B (en) * | 2012-09-19 | 2013-09-11 | 张永利 | Microcrystalline ceramic composite electrothermal material and method for preparing far-infrared ceramic electrothermal plate by using same |
| CN105637977A (en) * | 2013-11-22 | 2016-06-01 | 东洋德来路博株式会社 | Carbon heating composition and carbon heating element |
| CN105803294A (en) * | 2015-06-04 | 2016-07-27 | 卞直先 | Electric heating piece generating biological waves after being electrified and preparing method of electric heating piece |
| CN105315795A (en) * | 2015-12-08 | 2016-02-10 | 赵建南 | Intelligent high-temperature-resistant far infrared conductive heating energy-saving material |
| CN106046666A (en) * | 2016-07-01 | 2016-10-26 | 宜兴市凯诚模具有限公司 | Manufacturing method of high-performance nonmetal mold |
| CN106079465A (en) * | 2016-07-01 | 2016-11-09 | 宜兴市凯诚模具有限公司 | A kind of manufacture method of polymeric mold |
| CN108481852A (en) * | 2018-03-21 | 2018-09-04 | 谢语思 | A kind of infrared electrothermal film and preparation method thereof |
| CN111954324A (en) * | 2020-07-30 | 2020-11-17 | 东风商用车有限公司 | Vehicle portable far infrared electric heating plate and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100518415C (en) | 2009-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100518415C (en) | Heating unit of infrared electric heating plate and producing method | |
| CN107500291B (en) | A kind of preparation method of lignin-base phenolic resin capacitance carbon | |
| CN101914347A (en) | Carbon nano tube composite carbon crystal paint and method for preparing carbon crystal electric heating material from same | |
| CN106317728A (en) | High-efficiency and high-strength composite material with far infrared radiation heating and preparation method thereof | |
| CN107089827A (en) | Without machine width ripple far infrared composite environmental-friendly material | |
| CN101700705A (en) | Thermosetting resin glass fiber laminating composite material and preparation method thereof | |
| CN107321375A (en) | A kind of SiO2/ZnO/g‑C3N4Nano material and its application in reduction of hexavalent chromium | |
| CN108329046A (en) | Preparation method of carbon aerogel heat insulation composite material | |
| CN102457994A (en) | Far-infrared anion carbon crystal electric-heating warm-keeping composite material and preparation method thereof | |
| CN106912119A (en) | graphene infrared heating plate | |
| CN105960035B (en) | A kind of production method and its Electric radiant Heating Film of Self-controlling temperature electrothermal film | |
| CN107200997B (en) | A kind of structural wave-absorbing material and preparation method thereof of oxide nano thread-silicon carbide fibre multi-scale reinforcing body reinforced resin base | |
| CN109402765B (en) | Heat-storage warm-keeping chinlon 6 staple fiber and preparation method thereof | |
| CN105753425A (en) | Graphene and aluminum oxide based far-infrared heating coating and method for preparing same | |
| CN203424784U (en) | Novel heating container | |
| CN106115658B (en) | A method of preparing charcoal-aero gel using bamboo tar | |
| CN107610945A (en) | A kind of preparation method of nitrogen-phosphor codoping charcoal based super capacitor electrode material | |
| CN105713502B (en) | A kind of solar energy heat absorbing coating that absorptivity is high | |
| CN105060894A (en) | Method for preparing zirconium carbide wood ceramic | |
| CN105604293B (en) | A kind of energy saving and environment friendly nanometer heating floor | |
| CN201105096Y (en) | Far infrared leg physical therapy box | |
| CN208980339U (en) | A kind of activation equipment producing active carbon | |
| CN110641089B (en) | Graphene-based wallpaper | |
| CN207574095U (en) | For agricultural greenhouse graphene Far-infrared Heating anion light wave plate | |
| CN1295152A (en) | Exothermal infrared paper and its production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |