EP0133847A2 - A reflector structure for infrared radiation ovens - Google Patents
A reflector structure for infrared radiation ovens Download PDFInfo
- Publication number
- EP0133847A2 EP0133847A2 EP84850241A EP84850241A EP0133847A2 EP 0133847 A2 EP0133847 A2 EP 0133847A2 EP 84850241 A EP84850241 A EP 84850241A EP 84850241 A EP84850241 A EP 84850241A EP 0133847 A2 EP0133847 A2 EP 0133847A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- tubes
- infrared
- oven
- radiation
- 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
- 230000005855 radiation Effects 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000002657 fibrous material Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0006—Electric heating elements or system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/22—Reflectors for radiation heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
Definitions
- the present invention refers to a reflector structure for infrared radiation ovens, hereinafter referred to as IR-ovens, intended for heat treatment of objects and incorporating an oven chamber through which objectcs to be treated are conveyed and which is provided with radiation sources constituted by infrared heating tubes, hereinafter referred to as IR-tubes, and having reflectors provided behind said infrared tubes.
- IR-ovens a reflector structure for infrared radiation ovens
- IR-ovens intended for heat treatment of objects and incorporating an oven chamber through which objectcs to be treated are conveyed and which is provided with radiation sources constituted by infrared heating tubes, hereinafter referred to as IR-tubes, and having reflectors provided behind said infrared tubes.
- IR-ovens of this kind are used for a plurality of different heat treatment purposes, such as drying of painted objects, food preparation, hot treatment etcetera.
- the overall efficiency of an IR-oven is dependent of the combination of IR-tubes and reflector.
- the oven chamber in which the IR-tubes are located is designed as a reflector room, wherein the the secondary radiation from the IR-tubes hits the objects to be treated via the reflectors, and the objects are thus subjected to a maximum of radiation energy.
- the reflector room is generally built from a high reflecting material such as gold coated or aluminized sheet steel or the like.
- the reflector surface of the oven chamber is coated by a burnt-in layer or impurity, the origin and composition of which can vary but which most often consists of dust, powder particles, grease and the like.
- This coating absorbs an ever bigger part of the radiation energy emitted from the IR-tubes and the efficiency of the IR-oven becomes lower, whereby a large portion of the radiation energy from ther IR-tubes are instead used for heating the reflectors.
- the purpose of the present invention is to provide a reflector struvture for IR-ovens of the kind defined in the preamble. which entails that the reflector surfaces of the oven chamber are subjected to a continouos cleaning, whereby the the efficiency of the IR-oven will be high and above all even, which will guarantee an even heat treatment result, and this has been achieved in that the reflector structure has been given features defined in the accompanying claims.
- Figure 1 shows in cross-section a reflector disc 1 provided with retainers 2 for a number of IR-tubes 3 of any proper type.
- the reflector disc 1 is a self-supporting ceramic fibre plate, preferably based on alumina and which has the the property of reflecting the bigger part of the radiation whereas a smaller part thereof is absorbed by the surface of the reflector material.
- the temperature of the reflector surface thereby will increase rapidly to high values, whereby organic impurities are burnt away from the reflector surface, and the reflector has hereby become a self-cleaning reflector 1.
- Such a ceramic fibre plate which is available on the market under the trade name TRITON KAOWOOL, as an insulating plate, has unexpectedly proven itself to give the desired effect as a self-cleaning reflector disc. whereby it at the same time has an insulating effect against its side turned away from the reflector.
- the material which contains 43 - 47 X A1 2 0 3 and 57 - 53 % SiO 2 has the ability of withstanding temperatures up till 140 0 0 C, i.e. temperatures which are more than sufficient in order to allow contaminations such as dust, paint particles or grease to be incinerated.
- the reflector disc 1 of this material reflects about 85% of the infrared radiation whereas 15% is absorbed and thereby is used for keeping the reflector clean. It is to be understood that also other similar materials can be used for the same purpose.
- Figure 2 shows in cross-sectioncorresponding to Fig. 1, a box-shaped unit 4 incorporating an insulating reflector disc 1 with retainers 2 which project from one side surface thereof and carry IR-tubes 3, whereas on the opposite side of the disc is fitted a sheet metal housing; consisting of a sheet metal frame 5 and a covering sheet 6.
- the housing can contain a not shown discharge blower and it is for this purpose provided with a connecting socket 7.
- FIG. 3 which shows the box-shaped unit according to Fig. 2 in planar view from the side surface thereof provided with the IR-tubes 3, it can be seen how the retainers 2, which carry the IR-tubes are located one adjacent each end of the different IR-tubes.
- the unit is also provided with mounting holes 8 for mounting of the unit into an IR-oven.
- perforations 9 intended to introduce cooling air from the sheet metal housing to these connections.
- the self-supporting reflector disc according to Fig. I can be adapted after the current requirements and it can be mounted in existing oven chambers without the necessity of changing the oven shell in appreciable content.
- the unit according to Figs. 2 and 3 is it possible to make a mounting in an oven chamber having an arbitrary design, and if neither of the designs shown in Figs. 1 or 2,3 is suitable is it possible to adapt the combination IR-tubes/reflector to any type of oven.
- Fig.4 shows as an example an application of the invention at a powder heat treating oven for melting and setting of plastic material layers applied on objects, e.g. by means of electrostatic coating.
- the IR-oven incorporates i.a. an oven chamber in two hingedly connected halfes 10,11 which are articulated about a shaft arranged to extend in the longitudinal direction of the oven. Each one of the halves being connected to actuators 12 by means of which the oven can be opened such as intimated in dash lines.
- the oven may alternatively be provided with a laterally hinged openable doors.
- the two oven halves 10,11 form an oven space 13 through which objects to be treated are conveyed.
- the oven space 13 is provided with an internal wall confinement, which in the sloping roof and bottom regions 14 and 15 resp. have through-holes or perforations.
- the inner vertical walls 16, however, have no perforations, but they are at their walls facing the center of the oven chamber designed as reflectors, which carry a number of IR-tubes 17.
- the sloping roof and bottom regions 14, 15 can of course be designed as reflectors.
- the reflector surfaces 16 are designed in the manner described hereabove in connection to Figs. 1,2 and 3.
- the surfaces 14,15 may, if they are formed as reflectors, be made from ceramic fibre material, but the self-cleaning effect can hardly be obtained on these surfaces as the reflector must be arranged rather close to the IR-t 4 be for reaching a sufficiently high temperature.
- each oven half there is arranged radial blowers 19 for circulation of the oven atmosphere through the perforations in the inner roof 14 of the oven and via ducts 18 between the reflectors 16 and the outer, insulated, vertical oven wall to the bottom of the oven, where the atmosphere again is introduced into the oven chamber through the perforations in the bottom regions 15.
- the cross-section of the oven chamber is hexagonal, and only the vertical walls are used for supporting the IR-tubes, in order not the risk the tubes being damaged by falling objects.
- the IR-tubes can alternatively be mounted separately on a supporting structure freestanding from the walls 16, butr anyhow adjacent these.
- the IR-oven may however have any desired shape and it can be adapted for hanging objects or horizontally conveyed objects.
- figure 5 is schematically shown an IR-unit 5 having a reflector disc 1 fitted to one of its sides and IR-tubes 3 applied thereto, which tubes emitt infrared radiation.
- the figure also shows a schematically intimated work piece or object 20, which shall be subjected to some kind of heat treatment.
- the object 20 as seen is subjected to direct radiation 21 as well as secondary radiation 22, which is reflected from the reflector disc 1.
- Figur 6 is a corresponding view of a reflector disc 1 with an IR-tube whereby the radiation is illustrated as direct radiation 21 against a not shown object, direct radiation 23 against the reflector disc 1, and secondary radiation 22, reflected from the reflection disc 1.
- direct radiation 23 which hits the reflector disc, with a reflector material of the type described above, about 15 X of the radiation to be absorbed by the reflector disc. This energy incinerates the contaminations on the reflector disc 1 and a clean reflector is obtained, which emits about 85X af the energy from the primary radiation 23 as secondary radiation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Microbiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Tunnel Furnaces (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Control Of Resistance Heating (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
Description
- The present invention refers to a reflector structure for infrared radiation ovens, hereinafter referred to as IR-ovens, intended for heat treatment of objects and incorporating an oven chamber through which objetcs to be treated are conveyed and which is provided with radiation sources constituted by infrared heating tubes, hereinafter referred to as IR-tubes, and having reflectors provided behind said infrared tubes.
- IR-ovens of this kind are used for a plurality of different heat treatment purposes, such as drying of painted objects, food preparation, hot treatment etcetera.
- The overall efficiency of an IR-oven is dependent of the combination of IR-tubes and reflector. The oven chamber in which the IR-tubes are located is designed as a reflector room, wherein the the secondary radiation from the IR-tubes hits the objects to be treated via the reflectors, and the objects are thus subjected to a maximum of radiation energy.
- In order to give such a high efficiency as possible, the reflector room is generally built from a high reflecting material such as gold coated or aluminized sheet steel or the like.
- After operation during a period of time the reflector surface of the oven chamber is coated by a burnt-in layer or impurity, the origin and composition of which can vary but which most often consists of dust, powder particles, grease and the like. This coating absorbs an ever bigger part of the radiation energy emitted from the IR-tubes and the efficiency of the IR-oven becomes lower, whereby a large portion of the radiation energy from ther IR-tubes are instead used for heating the reflectors.
- Due to the gradually decreased efficiency of the oven the heat treatment result will also become uneven.
- Cleaning of these contaminated surfaces is hardly possible with conventional methods and at least not when the reflector surface in its position in the oven. The hitherto most common method for increasing the efficience again after operation of the oven for a period of time is that the oven is shut down, whereupon the contaminated sections are dismantled and substituted for new reflector ssurfaces. As it in particular are the reflector surfaces situated closest to the IR-tubes, i.e. the surfaces behind the IR-tubes, which are subjected to the impurities is this a time-wasting work as also the IR-tubes have to be dismounted for allowing the exchange of such reflector surfaces.
- This means beside the work, that the oven must be put out of operation for some time rather often, which of course affects its possible ratio of production to capacity.
- The purpose of the present invention is to provide a reflector struvture for IR-ovens of the kind defined in the preamble. which entails that the reflector surfaces of the oven chamber are subjected to a continouos cleaning, whereby the the efficiency of the IR-oven will be high and above all even, which will guarantee an even heat treatment result, and this has been achieved in that the reflector structure has been given features defined in the accompanying claims.
-
- Figure 1 shows in cross-section a reflector structure according to the invention and incorporating a refector disc and IR-tubes mounted thereon.
- Figure 2 is a corresponding cross-section through a box-shaped combination of IR-tubes/reflector.
- Figure 3 shows a planar view of the combination shown in Fig. 2.
- Figure 4 shows in an end view an IR-oven equipped with the reflector structure according to the invention.
- Figures 5 and 6 show schematically the directions of the radiation beams at the reflectors according to invention.
- Figure 1 shows in cross-section a
reflector disc 1 provided withretainers 2 for a number of IR-tubes 3 of any proper type. - The
reflector disc 1 is a self-supporting ceramic fibre plate, preferably based on alumina and which has the the property of reflecting the bigger part of the radiation whereas a smaller part thereof is absorbed by the surface of the reflector material. The temperature of the reflector surface thereby will increase rapidly to high values, whereby organic impurities are burnt away from the reflector surface, and the reflector has hereby become a self-cleaningreflector 1. - Such a ceramic fibre plate, which is available on the market under the trade name TRITON KAOWOOL, as an insulating plate, has unexpectedly proven itself to give the desired effect as a self-cleaning reflector disc. whereby it at the same time has an insulating effect against its side turned away from the reflector.
- The material which contains 43 - 47 X A1203 and 57 - 53 % SiO2 has the ability of withstanding temperatures up till 1400 0C, i.e. temperatures which are more than sufficient in order to allow contaminations such as dust, paint particles or grease to be incinerated. the
reflector disc 1 of this material reflects about 85% of the infrared radiation whereas 15% is absorbed and thereby is used for keeping the reflector clean. It is to be understood that also other similar materials can be used for the same purpose. - Figure 2 shows in cross-sectioncorresponding to Fig. 1, a box-
shaped unit 4 incorporating aninsulating reflector disc 1 withretainers 2 which project from one side surface thereof and carry IR-tubes 3, whereas on the opposite side of the disc is fitted a sheet metal housing; consisting of asheet metal frame 5 and a covering sheet 6. The housing can contain a not shown discharge blower and it is for this purpose provided with a connectingsocket 7. - From figure 3 , which shows the box-shaped unit according to Fig. 2 in planar view from the side surface thereof provided with the IR-
tubes 3, it can be seen how theretainers 2, which carry the IR-tubes are located one adjacent each end of the different IR-tubes. The unit is also provided with mounting holes 8 for mounting of the unit into an IR-oven. At each end connection for the IR-tubes there areperforations 9 intended to introduce cooling air from the sheet metal housing to these connections. - The self-supporting reflector disc according to Fig. I can be adapted after the current requirements and it can be mounted in existing oven chambers without the necessity of changing the oven shell in appreciable content. With the unit according to Figs. 2 and 3 is it possible to make a mounting in an oven chamber having an arbitrary design, and if neither of the designs shown in Figs. 1 or 2,3 is suitable is it possible to adapt the combination IR-tubes/reflector to any type of oven.
- Fig.4 shows as an example an application of the invention at a powder heat treating oven for melting and setting of plastic material layers applied on objects, e.g. by means of electrostatic coating.
- The IR-oven incorporates i.a. an oven chamber in two hingedly connected
halfes actuators 12 by means of which the oven can be opened such as intimated in dash lines. The oven may alternatively be provided with a laterally hinged openable doors. - In closed position (continouos lines) the two
oven halves oven space 13 through which objects to be treated are conveyed. Theoven space 13 is provided with an internal wall confinement, which in the sloping roof andbottom regions vertical walls 16, however, have no perforations, but they are at their walls facing the center of the oven chamber designed as reflectors, which carry a number of IR-tubes 17. Also the sloping roof andbottom regions reflector surfaces 16 are designed in the manner described hereabove in connection to Figs. 1,2 and 3. Also thesurfaces - In the roof of each oven half there is arranged
radial blowers 19 for circulation of the oven atmosphere through the perforations in theinner roof 14 of the oven and viaducts 18 between thereflectors 16 and the outer, insulated, vertical oven wall to the bottom of the oven, where the atmosphere again is introduced into the oven chamber through the perforations in thebottom regions 15. - The cross-section of the oven chamber is hexagonal, and only the vertical walls are used for supporting the IR-tubes, in order not the risk the tubes being damaged by falling objects. The IR-tubes can alternatively be mounted separately on a supporting structure freestanding from the
walls 16, butr anyhow adjacent these. - The IR-oven may however have any desired shape and it can be adapted for hanging objects or horizontally conveyed objects.
- In figure 5 is schematically shown an IR-
unit 5 having areflector disc 1 fitted to one of its sides and IR-tubes 3 applied thereto, which tubes emitt infrared radiation. The figure also shows a schematically intimated work piece orobject 20, which shall be subjected to some kind of heat treatment. Theobject 20 as seen is subjected todirect radiation 21 as well assecondary radiation 22, which is reflected from thereflector disc 1. - Figur 6 is a corresponding view of a
reflector disc 1 with an IR-tube whereby the radiation is illustrated asdirect radiation 21 against a not shown object,direct radiation 23 against thereflector disc 1, andsecondary radiation 22, reflected from thereflection disc 1. Of the primary,direct radiation 23, which hits the reflector disc, with a reflector material of the type described above, about 15 X of the radiation to be absorbed by the reflector disc. This energy incinerates the contaminations on thereflector disc 1 and a clean reflector is obtained, which emits about 85X af the energy from theprimary radiation 23 as secondary radiation. - The invention is not limited to the embodiments shown in the accompanying drawings and described with reference thereto but modifications are possible within the scope of the accompanying claims.
Claims (5)
characterized in, that the reflector material incorporates A1203.
characterized in, that the reflector material consists of 43 - 47 7 A1203 and 57 - 53 % SiO2.
claimed in anyone of claims 1 to 3,
characterized in, that it is designed as a self-supporting reflector disc (1), having retainers (2) for supporting infrared heating tubes (3), without intermediate shields between the infrared tubes and the reflector surface.
characterized in,
that it is designed as a box-shaped unit provided with a reflector disc (1) which on one of its flat side surfaces carries unshielded retainers (2) projecting therefrom and supporting infrared heating tubes (3) and a having a housing (5,6) connected to the opposite side of the reflector disc and adapted to incorporate mounting members (8) and to be able to enclose cooling and/or ventilation means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84850241T ATE34212T1 (en) | 1983-08-11 | 1984-08-13 | REFLECTOR FOR INFRARED RADIANT OVEN. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8304363A SE448575B (en) | 1983-08-11 | 1983-08-11 | REFLECTOR CONSTRUCTION FOR IR OVENS |
SE8304363 | 1983-08-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0133847A2 true EP0133847A2 (en) | 1985-03-06 |
EP0133847A3 EP0133847A3 (en) | 1986-12-30 |
EP0133847B1 EP0133847B1 (en) | 1988-05-11 |
Family
ID=20352168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84850241A Expired EP0133847B1 (en) | 1983-08-11 | 1984-08-13 | A reflector structure for infrared radiation ovens |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0133847B1 (en) |
AT (1) | ATE34212T1 (en) |
DE (1) | DE3471154D1 (en) |
SE (1) | SE448575B (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271593A1 (en) * | 1986-12-16 | 1988-06-22 | Russell R. Ellersick | Furnace wall lining composition and the use thereof |
EP0416868A1 (en) * | 1989-09-08 | 1991-03-13 | W.R. Grace & Co.-Conn. | Reflector assembly for heating a substrate |
WO1992007224A1 (en) * | 1990-10-16 | 1992-04-30 | Bgk Finishing Systems, Inc. | High intensity infrared heat treating apparatus |
DE4202944A1 (en) * | 1992-02-01 | 1993-08-05 | Heraeus Quarzglas | METHOD AND DEVICE FOR HEATING A MATERIAL |
WO1994007101A1 (en) * | 1992-09-11 | 1994-03-31 | Queen Mary & Westfield College | Radiant heating furnace |
WO1998009123A1 (en) * | 1996-08-30 | 1998-03-05 | Infrarödteknik Ab | Heater for heating by infra-red radiation |
US5778145A (en) * | 1996-03-27 | 1998-07-07 | De Nichilo; Giorgio | Thermoforming apparatus with pivotable heating panel portions for emergency moving thereof |
WO1999002013A1 (en) * | 1997-07-01 | 1999-01-14 | Kanthal Ab | Ir-source with helically shaped heating element |
US6288369B1 (en) * | 2000-12-15 | 2001-09-11 | Victor L. Sherman | Cooking apparatus |
DE10029522A1 (en) * | 2000-06-21 | 2002-01-10 | Schott Glas | Device for the homogeneous heating of glasses and / or glass ceramics |
DE10047576A1 (en) * | 2000-09-22 | 2002-04-18 | Schott Glas | Production of glass ceramic parts and/or glass parts comprises deforming a glass ceramic blank and/or a glass blank using IR radiation |
US7000430B1 (en) | 1999-03-23 | 2006-02-21 | Schott Ag | Method of forming glass-ceramic parts and/or glass parts |
US7017370B1 (en) | 1999-03-23 | 2006-03-28 | Schott Ag | Method and device for the homogenous heating of glass and/or glass-ceramic articles using infrared radiation |
WO2006072282A1 (en) | 2005-01-05 | 2006-07-13 | Advanced Photonics Technologies Ag | Thermal irradiation system for heating material to be irradiated |
DE102006055397B3 (en) * | 2006-11-22 | 2008-05-15 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for the production of a cylindrical profile element made of quartz glass and use thereof |
DE102011012363A1 (en) | 2011-02-24 | 2012-08-30 | Heraeus Noblelight Gmbh | Infrared surface radiator for infrared radiation with high radiating power per unit area, has pipes whose outer surfaces are provided on side with reflector and fixation layer made of opaque quartz glass, where side faces toward surface |
DE102014107395A1 (en) | 2014-05-26 | 2015-11-26 | Sandvik Materials Technology Deutschland Gmbh | Device for mounting radiant heating elements and corresponding radiant heater |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10118260A1 (en) * | 2001-04-11 | 2002-10-24 | Schott Glas | Process for deforming bodies made from glass or glass-ceramic comprises placing the body on a mold, and heating using short wave infrared radiation |
US7115837B2 (en) * | 2003-07-28 | 2006-10-03 | Mattson Technology, Inc. | Selective reflectivity process chamber with customized wavelength response and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR398210A (en) * | 1908-12-31 | 1909-05-29 | Martin Brandt | Rapid heater |
DE2840339A1 (en) * | 1978-09-15 | 1980-04-03 | Bartholomaeus & Rudolph Gmbh & | Continuous drier for photographic materials - has infrared heater bars with internally reflective quartz cladding and cooling fan |
-
1983
- 1983-08-11 SE SE8304363A patent/SE448575B/en not_active IP Right Cessation
-
1984
- 1984-08-13 EP EP84850241A patent/EP0133847B1/en not_active Expired
- 1984-08-13 DE DE8484850241T patent/DE3471154D1/en not_active Expired
- 1984-08-13 AT AT84850241T patent/ATE34212T1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR398210A (en) * | 1908-12-31 | 1909-05-29 | Martin Brandt | Rapid heater |
DE2840339A1 (en) * | 1978-09-15 | 1980-04-03 | Bartholomaeus & Rudolph Gmbh & | Continuous drier for photographic materials - has infrared heater bars with internally reflective quartz cladding and cooling fan |
Non-Patent Citations (1)
Title |
---|
DE-B-K928 V/82 (ERICH KIEFER LUFTTECHNISCHE ANLAGEN) * |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271593A1 (en) * | 1986-12-16 | 1988-06-22 | Russell R. Ellersick | Furnace wall lining composition and the use thereof |
EP0416868A1 (en) * | 1989-09-08 | 1991-03-13 | W.R. Grace & Co.-Conn. | Reflector assembly for heating a substrate |
WO1992007224A1 (en) * | 1990-10-16 | 1992-04-30 | Bgk Finishing Systems, Inc. | High intensity infrared heat treating apparatus |
US5551670A (en) * | 1990-10-16 | 1996-09-03 | Bgk Finishing Systems, Inc. | High intensity infrared heat treating apparatus |
DE4202944A1 (en) * | 1992-02-01 | 1993-08-05 | Heraeus Quarzglas | METHOD AND DEVICE FOR HEATING A MATERIAL |
EP0554538A2 (en) * | 1992-02-01 | 1993-08-11 | Heraeus Noblelight GmbH | Process and device for the heating of a material |
EP0554538A3 (en) * | 1992-02-01 | 1995-04-05 | Heraeus Quarzglas | Process and device for the heating of a material |
WO1994007101A1 (en) * | 1992-09-11 | 1994-03-31 | Queen Mary & Westfield College | Radiant heating furnace |
US5778145A (en) * | 1996-03-27 | 1998-07-07 | De Nichilo; Giorgio | Thermoforming apparatus with pivotable heating panel portions for emergency moving thereof |
WO1998009123A1 (en) * | 1996-08-30 | 1998-03-05 | Infrarödteknik Ab | Heater for heating by infra-red radiation |
WO1999002013A1 (en) * | 1997-07-01 | 1999-01-14 | Kanthal Ab | Ir-source with helically shaped heating element |
US6308008B1 (en) | 1997-07-01 | 2001-10-23 | Kanthal Ab | IR-source with helically shaped heating element |
US7000430B1 (en) | 1999-03-23 | 2006-02-21 | Schott Ag | Method of forming glass-ceramic parts and/or glass parts |
US7017370B1 (en) | 1999-03-23 | 2006-03-28 | Schott Ag | Method and device for the homogenous heating of glass and/or glass-ceramic articles using infrared radiation |
DE10029522A1 (en) * | 2000-06-21 | 2002-01-10 | Schott Glas | Device for the homogeneous heating of glasses and / or glass ceramics |
DE10029522B4 (en) * | 2000-06-21 | 2005-12-01 | Schott Ag | Apparatus for the homogeneous heating of glasses and / or glass-ceramics, methods and uses |
DE10047576A1 (en) * | 2000-09-22 | 2002-04-18 | Schott Glas | Production of glass ceramic parts and/or glass parts comprises deforming a glass ceramic blank and/or a glass blank using IR radiation |
US6288369B1 (en) * | 2000-12-15 | 2001-09-11 | Victor L. Sherman | Cooking apparatus |
WO2006072282A1 (en) | 2005-01-05 | 2006-07-13 | Advanced Photonics Technologies Ag | Thermal irradiation system for heating material to be irradiated |
DE102006055397B3 (en) * | 2006-11-22 | 2008-05-15 | Heraeus Quarzglas Gmbh & Co. Kg | Method and device for the production of a cylindrical profile element made of quartz glass and use thereof |
DE102011012363A1 (en) | 2011-02-24 | 2012-08-30 | Heraeus Noblelight Gmbh | Infrared surface radiator for infrared radiation with high radiating power per unit area, has pipes whose outer surfaces are provided on side with reflector and fixation layer made of opaque quartz glass, where side faces toward surface |
DE102014107395A1 (en) | 2014-05-26 | 2015-11-26 | Sandvik Materials Technology Deutschland Gmbh | Device for mounting radiant heating elements and corresponding radiant heater |
Also Published As
Publication number | Publication date |
---|---|
DE3471154D1 (en) | 1988-06-16 |
SE8304363L (en) | 1985-02-12 |
SE448575B (en) | 1987-03-02 |
EP0133847A3 (en) | 1986-12-30 |
SE8304363D0 (en) | 1983-08-11 |
EP0133847B1 (en) | 1988-05-11 |
ATE34212T1 (en) | 1988-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0133847B1 (en) | A reflector structure for infrared radiation ovens | |
US4546553A (en) | Radiant wall oven and process of drying coated objects | |
EP0270548B1 (en) | Heat treating oven | |
RU2208741C2 (en) | Unit heater | |
CA1331087C (en) | Oven for the curing and cooling of painted objects and method | |
KR100542337B1 (en) | Painting drying device using halogen heater | |
US3930488A (en) | Heating panel for use in explosion-prone furnaces | |
US3322413A (en) | Furnaces for fast-firing ceramic ware, and fast-firing process | |
US4595826A (en) | Heat treatment furnace and method of construction | |
NL1017410C2 (en) | Roof construction with solar cells. | |
FI105948B (en) | Charging fireplace | |
KR200247505Y1 (en) | A hot wind boiler | |
KR200386028Y1 (en) | Painting drying device using halogen heater | |
DE19520341A1 (en) | Oven with heat-insulated chamber | |
CN216814936U (en) | High-efficient type sectional type tunnel drying furnace | |
DE19953345A1 (en) | Wall surface heating for heat therapy cabin has heat conduction plate between tubular heat source and heat distribution panel for preventing localized heating of latter | |
JP6770009B2 (en) | Twin rotary heat treatment furnace and heat treatment method using it | |
US4135488A (en) | Fireplace furnace apparatus | |
DE60309563T2 (en) | ELECTRIC RANGE | |
JP3136441B2 (en) | High wind laminar hot stove | |
RU13419U1 (en) | HEATING FURNACE | |
CN214841129U (en) | Radiation heater | |
JPH0222317B2 (en) | ||
US4667396A (en) | Method of construction of a heat treatment furnace | |
JPS607193B2 (en) | Hot air circulation drying oven |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB LI NL |
|
17P | Request for examination filed |
Effective date: 19870206 |
|
17Q | First examination report despatched |
Effective date: 19871023 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB LI NL |
|
REF | Corresponds to: |
Ref document number: 34212 Country of ref document: AT Date of ref document: 19880515 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3471154 Country of ref document: DE Date of ref document: 19880616 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19920831 Year of fee payment: 9 Ref country code: FR Payment date: 19920831 Year of fee payment: 9 Ref country code: BE Payment date: 19920831 Year of fee payment: 9 Ref country code: AT Payment date: 19920831 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19920904 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19921031 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19930804 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19930813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19930831 Ref country code: CH Effective date: 19930831 Ref country code: BE Effective date: 19930831 |
|
BERE | Be: lapsed |
Owner name: TRI INNOVATIONS A.B. Effective date: 19930831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19940301 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19940429 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19940503 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19940813 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19940813 |