CN102189068A - High-energy infrared radiation heater - Google Patents
High-energy infrared radiation heater Download PDFInfo
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- CN102189068A CN102189068A CN2011101033140A CN201110103314A CN102189068A CN 102189068 A CN102189068 A CN 102189068A CN 2011101033140 A CN2011101033140 A CN 2011101033140A CN 201110103314 A CN201110103314 A CN 201110103314A CN 102189068 A CN102189068 A CN 102189068A
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Abstract
The invention relates to a high-energy infrared radiation heater which comprises a quartz inner tube heater, a directional reflection screen behind the quartz inner tube heater and a quartz glass tube housing of the quartz inner tube heater, wherein the heating element is tungsten filament; and the directional reflection screen is provided with a ceramic coating which comprises the following components in percentage by weight: 25-42wt% of CuO, 12-28wt% of NiO, 18-36wt% of MnO2, 1-8wt% of Y2O3 and the balance of SiO2. The equipment provided by the invention has the characteristics of short startup time and emission of all-band infrared rays, and is particularly suitable for drying or curing paints and coatings.
Description
Technical field
The present invention relates to a kind of infrared radiation heater, particularly, the present invention relates to a kind of high-energy infrared-radiation heater.
Background technology
After coating is covered in matrix surface, is transformed into process that compact and complete solid films by liquid state or grog pressed powder state and is called coating or film dry or solidifies.
The coating drying is one of key link of japanning construction, has only after continuous coated that final formation solidifies its various functions of coating competence exertion.Have only and select correct drying mode and technology, just can obtain desirable expection coating, finish the whole technological requirement of coating application.The coating drying process is except the effect that influences coating application, because it is the process of a power consumption height, length consuming time, thereby the efficient and the economy of coating application is also had significant impact.
The dry run of coating generally is to be become solid-stately by liquid state, and viscosity increases gradually, and performance reaches the process that regulation requires gradually.Change procedure experience dry tack free, partial desiccation, bone dry three phases.
(1) dry tack free: be that the flowable state of clump of filming is dried to touch with finger and is not stained with lacquer on the time finger of filming but the stickness of feeling to film, leaves stage of finger trace on filming.
(2) partial desiccation is the drying regime that can not stay fingerprint during with light finger extrusion film, is a kind of drying regime of semihard.
(3) bone dry is to suppress to film with finger also not stay fingerprint, films with the finger friction and does not also stay the drying regime of scar, film this moment energy resistance to compression, anti-polishing.But the standard of the different bone dries of filming often also has specific requirement, and the method for standard is that the mechanical properties such as hardness that test is filmed are judged the drying or the state of cure of filming.
Actual conditions during according to drying can be divided into air dry, heat drying and three kinds of situations of special drying.The infrared radiation drying is one of heat drying mode of using always.
As everyone knows, infra-red radiation can be divided into three wave bands by its radiation wavelength, and its wavelength of near infrared band is 750nm-2500nm, and the radiant body temperature is 2000-2200 ℃, and thermal element start-up time is 1-2 second, and radiation source is bright look; Its wavelength of middle-infrared band is 2500nm-4000nm, and the radiant body temperature is 800-900 ℃, and thermal element start-up time is 60-90 second, and radiation source is kermesinus; Its wavelength of far infrared band is 4-50um, 400-600 ℃ of radiant body temperature, and thermal element start-up time is 15 minutes, it is dark-coloured that radiation source is.Be applied in industrial infrared radiation heater, to the different workpiece that is heated, its heating and absorption infra-red radiation wavelength have nothing in common with each other, so must and absorbing required wavelength with the workpiece heating, the wavelength that infrared radiation heater provides mates mutually, just can get a desired effect, its performance indications comprise energy-saving effect, heat up and cooling fast, infrared radiation heater service life etc.
The employed material of high emissivity infrared radiator of various countries' development mostly is ceramic material.According to the vibration symmetry principle, the symmetry during particle vibration is low more, and the variation of dipole moment is just big more, and its infra-red radiation is just strong more.The symmetry of molecular structure malleable molecule in vibration processes of forming owing to the ceramic material polyatom changes dipole moment.Therefore, many ceramic materials all have higher emissivity.Ceramic material also has acid and alkali-resistance, premium properties such as anticorrosive, anti-oxidant, high temperature resistant.So the infrared radiation ceramic material more and more is subject to people's attention.
60～seventies of 20th century, the U.S., Japan etc. are to SiO
2, Fe
2O
3Carried out theoretical research Deng compound monocrystal material with good radiation characteristic; Because the at high temperature easily oxidized and feasible infrared emittance in use of SiO2 reduces; the Enecoat infrared radiation coating product that Britain HethertBeven company and Europe, Australia's joint operation are released; SiO2 and chemical addition agent are mixed; after presintering; additive can form silicon dioxide protective film at silicon carbide; can effectively prevent the high-temperature oxydation of carborundum, prolong its service life.But the emissivity of homogenous material constantly changes with wavelength, and the emission of object also all presents certain selectivity with absorption.Be chosen in the filler that different-waveband has high emissivity respectively and carry out compoundization, make coating in different temperature and wave-length coverage, high emissivity be arranged.
The high infrared radiation heating technique is a kind of infra-red radiation new technology that grows up the nineties in 20th century.Far infrared heating technology is to grow up on the theoretical foundation that the infrared radiation spectrum of radiator and illuminated absorption spectrum of filming are complementary.Studies show that the many places, absorbing wavelength sensitizing range of filming are in far infrared band, so select for use far-infrared heater to help the curing of quickening to film.But the distinct disadvantage of far infrared radiation is that the energy density of radiation is low.In commercial Application, be difficult to reach optimum Match again, so its practical application effect of many occasions and bad.And moment in the high infrared radiation technology moment provides the new technology of high strength, high-energy and highdensity full-wave band infrared radiation.
Summary of the invention
The object of the present invention is to provide a kind of high-energy infrared-radiation heater, and it has short, the ultrared characteristics of emission all band start-up time, be particularly suitable for being used for drying or curing are carried out in japanning and coating.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of high-energy infrared-radiation heater comprises the quartz inner pipe heater, and heating element heater is a tungsten filament; The orienting reflex screen at quartz inner pipe heater rear; The quartz glass tube outer cover of quartz inner pipe heater; It is characterized in that described orienting reflex screen has ceramic coating, and the consisting of of ceramic coating: CuO:25-42wt%; NiO:12-28wt%; MnO
2: 18-36wt%; Y
2O
3: the SiO of 1-8wt% and surplus
2
The tungsten filament operating temperature of heating unit can reach the 2000-2400 degree, and to the external radiation near infrared ray; The temperature on surface can reach about 800 degree, to the external radiation middle infrared (Mid-IR) during work of quartz glass tube outer cover; Temperature can reach about 600 degree during the work of orienting reflex screen, and is outwards radiation infrared.
Preferably, wherein the content of CuO is 25-32wt%.
Preferably, wherein the content of NiO is 15-22wt%.
Preferably, MnO wherein
2Content be 20-28wt%.
Preferably, Y wherein
2O
3Content be 1-6wt%.
Preferably, the composition of described ceramic coating and content are respectively: CuO:25wt%; NiO:15wt%; MnO
2: 20wt%; Y
2O
3: the SiO of 6wt% and surplus
2
Preferably, the composition of described ceramic coating and content are respectively: CuO:32wt%; NiO:22wt%; MnO
2: 28wt%; Y
2O
3: the SiO of 1wt% and surplus
2
Preferably, the thickness of described ceramic coating is between 1um-30um, for example between the 5um-20um.
Wherein, described ceramic coating can deposit by technology known in the art, for example, and sputtering method such as magnetron sputtering, spraying process such as electric arc spraying, vapour deposition method such as electron beam evaporation plating method, chemical vapour deposition (CVD) such as plasma enhanced chemical vapor deposition etc.
The coating that preferably, can prepare said components and content by methods such as coating brushing, sprayings.Preferredly prepare above-mentioned coating by spraying method.
Preferably, described spraying comprises: methods such as flame-spraying, electric arc spraying, plasma spraying, laser spraying or cold spraying.Preferred the application can adopt flame spray powder coating or electric arc spraying.
Adopt hot-spraying technique to prepare coating, heat spraying method directly melts dusty material, directly clash into the coating that matrix surface forms high adhesion with high speed kinetic energy, it is chimeric mutually by melting the grain distortion to be coated with interlayer, strength of coating and bond strength all are much better than the coating with the preparation of coating brushing method, can reach 20 years general service life, and can keep very high infrared radiation property for a long time.
The radiance of the ceramic coating of the application's preparation adopts the IRE-2 infra-red radiation tester of Shanghai Institute of Technical Physics of Chinese Academy of Sciences development, according to the method for GB7287.9-87 regulation, between 600 its infrared emittances of degree test are up to 92-98%.
In addition, the applicant also tests the thermal shock resistance of coating, the infrared radiating coating of preparation was heated 120 hours under the high temperature of 800 degree, the visual inspection coating surface does not have significant change, and also show by the infrared emittance test, emissivity has reduced less than 2%, demonstrates this coating and still have excellent infrared radiation property under harsh hot conditions.
High-energy infrared-radiation heater with prior art is compared, and the present invention has the following advantages:
(1) start-up time of high-energy infrared-radiation heater of the present invention short, can radiation all band infrared ray, can shorten the oven dry and the hardening time of japanning greatly, thereby be particularly suitable for being coated with the drying of paint material.
(2) mainly adopt the high metal oxide ceramic material of infrared reflectivity to shield as orienting reflex, reflectivity is up to more than 90%, overcome in the prior art metal material as the easy oxidation in reflecting layer, the low shortcoming of reflectivity.
(3) ceramic coating ability 800 degree high temperature of the present invention test for a long time, and not obviously decline of performance (operating temperature generally is lower than 600 degree).
Specific embodiment
Below will make further instructions the present invention by specific embodiment.
Embodiment 1
A kind of high-energy infrared-radiation heater comprises the quartz inner pipe heater, and heating element heater is a tungsten filament; The orienting reflex screen at quartz inner pipe heater rear; The quartz glass tube outer cover of quartz inner pipe heater; It is characterized in that described orienting reflex screen has ceramic coating, and the consisting of of ceramic coating: CuO:25wt%; NiO:15wt%; MnO
2: 20wt%; Y
2O
3: the SiO of 6wt% and surplus
2The thickness of coating is 10mm, adopts the arc spray process preparation.The reflectivity of 600 far infrareds when spending is 93%.
Embodiment 2
A kind of high-energy infrared-radiation heater comprises the quartz inner pipe heater, and heating element heater is a tungsten filament; The orienting reflex screen at quartz inner pipe heater rear; The quartz glass tube outer cover of quartz inner pipe heater; It is characterized in that described orienting reflex screen has ceramic coating, and the consisting of of ceramic coating: CuO:25wt%; NiO:15wt%; MnO
2: 20wt%; Y
2O
3: the SiO of 6wt% and surplus
2The thickness of coating is 20mm, adopts the arc spray process preparation.The reflectivity of 600 far infrareds when spending is 96%.
Use infrared radiation pipe of the present invention and can be used for the coating curing oven.Show by the curing contrast experiment to automobile brake disc organosilicon zinc-rich coating, compare with the common quartz ampoule mode of being heating and curing that it is about more than 30% to save electric power, shortened more than 80% hardening time.
The above only is preferred embodiment of the present invention, and is all within the claimed technical scheme scope of the application's claim, and any modification of being done and/or be equal to is replaced and/or improvement etc., all should be included within protection scope of the present invention.The application's protection domain is as the criterion with the technical scheme of claim and the technical scheme that is equal to thereof, and is not subjected to specification to specifically describe the restriction of part.
Claims (8)
1. a high-energy infrared-radiation heater comprises the quartz inner pipe heater, and heating element heater is a tungsten filament; The orienting reflex screen at quartz inner pipe heater rear; The quartz glass tube outer cover of quartz inner pipe heater; It is characterized in that described orienting reflex screen has ceramic coating, and the consisting of of ceramic coating: CuO:25-42wt%; NiO:12-28wt%; MnO
2: 18-36wt%; Y
2O
3: the SiO of 1-8wt% and surplus
2
2. the described high-energy infrared-radiation heater of claim 1, the content that it is characterized in that CuO is 25-32wt%.
3. the described high-energy infrared-radiation heater of claim 1, the content that it is characterized in that NiO is 15-22wt%.
4. the described high-energy infrared-radiation heater of claim 1 is characterized in that MnO
2Content be 20-28wt%.
5. the described high-energy infrared-radiation heater of claim 1 is characterized in that Y
2O
3Content be 1-6wt%.
6. the described high-energy infrared-radiation heater of claim 1 is characterized in that described ceramic coating adopts the spraying process preparation.
7. the described high-energy infrared-radiation heater of claim 7 is characterized in that described ceramic coating adopts the arc spraying preparation.
8. the application of each described high-energy infrared-radiation heater of claim 1-7 is used it in the curing or drying equipment that is coated with paint material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101033140A CN102189068A (en) | 2011-04-25 | 2011-04-25 | High-energy infrared radiation heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101033140A CN102189068A (en) | 2011-04-25 | 2011-04-25 | High-energy infrared radiation heater |
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| Publication Number | Publication Date |
|---|---|
| CN102189068A true CN102189068A (en) | 2011-09-21 |
Family
ID=44598458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101033140A Pending CN102189068A (en) | 2011-04-25 | 2011-04-25 | High-energy infrared radiation heater |
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|---|---|
| CN (1) | CN102189068A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321803A (en) * | 2018-11-30 | 2019-02-12 | 苏州艾默特材料技术有限公司 | A kind of heating element with porous ceramics coating |
| CN110512165A (en) * | 2019-09-16 | 2019-11-29 | 中国人民解放军国防科技大学 | High-temperature high-emissivity infrared radiation coating material system and preparation method thereof |
| CN112858216A (en) * | 2021-02-05 | 2021-05-28 | 济南弗莱德科学仪器有限公司 | Rapid temperature control method for near-infrared spectrometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235179Y (en) * | 1995-07-27 | 1996-09-11 | 罗会炳 | Directional strong radiation far-infrared heater |
| CN2512192Y (en) * | 2001-12-04 | 2002-09-18 | 吴岩峰 | Infrared radiating heater with enamel surface |
| CN1988739A (en) * | 2006-12-14 | 2007-06-27 | 邹美琴 | Infrared heater |
-
2011
- 2011-04-25 CN CN2011101033140A patent/CN102189068A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235179Y (en) * | 1995-07-27 | 1996-09-11 | 罗会炳 | Directional strong radiation far-infrared heater |
| CN2512192Y (en) * | 2001-12-04 | 2002-09-18 | 吴岩峰 | Infrared radiating heater with enamel surface |
| CN1988739A (en) * | 2006-12-14 | 2007-06-27 | 邹美琴 | Infrared heater |
Non-Patent Citations (2)
| Title |
|---|
| 《红外技术》 20010731 欧阳德刚 等 "烧结辐射粉体基料成分对其辐射性能的影响研究" 第32-35页 1-8 第23卷, 第4期 * |
| 欧阳德刚 等: ""烧结辐射粉体基料成分对其辐射性能的影响研究"", 《红外技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321803A (en) * | 2018-11-30 | 2019-02-12 | 苏州艾默特材料技术有限公司 | A kind of heating element with porous ceramics coating |
| CN110512165A (en) * | 2019-09-16 | 2019-11-29 | 中国人民解放军国防科技大学 | High-temperature high-emissivity infrared radiation coating material system and preparation method thereof |
| CN112858216A (en) * | 2021-02-05 | 2021-05-28 | 济南弗莱德科学仪器有限公司 | Rapid temperature control method for near-infrared spectrometer |
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Application publication date: 20110921 |