EP1443120A1 - Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf - Google Patents
Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf Download PDFInfo
- Publication number
- EP1443120A1 EP1443120A1 EP03029982A EP03029982A EP1443120A1 EP 1443120 A1 EP1443120 A1 EP 1443120A1 EP 03029982 A EP03029982 A EP 03029982A EP 03029982 A EP03029982 A EP 03029982A EP 1443120 A1 EP1443120 A1 EP 1443120A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- nozzle
- fluid
- tape
- heating
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 title description 6
- 239000002184 metal Substances 0.000 title description 5
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 239000012809 cooling fluid Substances 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 239000011888 foil Substances 0.000 claims 2
- 239000007769 metal material Substances 0.000 claims 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 241000530268 Lycaena heteronea Species 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/66—Tower-type furnaces
-
- 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
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/045—Furnaces with controlled atmosphere
-
- 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
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
- F27B9/2476—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor the conveyor being constituted by air cushion
-
- 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 specially adapted for furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- 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
- F27D19/00—Arrangements of controlling devices
-
- 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
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/565—Sealing arrangements
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences
Definitions
- the invention relates to a device for the heat treatment of metallic strips in the Pass, in particular for operation under protective gas of low density, such as for example a nitrogen / hydrogen mixture with a high hydrogen content.
- the continuous heat treatment is usually under protective gas carried out.
- This protective gas can largely consist of nitrogen.
- a disadvantage of the rope line in particular is that in the case of longer lengths of tape Heat treatment part both high belt sag and high Band tension occur. As a result, the throughput of such systems is very high limited.
- the object of the invention is to provide a device which has the advantages of Belt guidance by means of stabilizing floating nozzles with the advantages of Tower furnace systems and systems with a conveyor belt combined on a rope line, without having to accept the disadvantages of the known system.
- FIG. 1 schematically shown housing 6 arranged. This case indicates for the Tape entry and the tape exit sealed passages 7, which in Figure 1 are also only indicated schematically.
- nozzle systems 8u and 8o for the heating section 4 and 9u and 9o for the cooling section 5 are provided.
- these blowing systems that support and at the same time as the band its position stabilizing floating nozzles, preferably as from EP 0 864 518 B1 known, are executed, the tape 1 is held in a certain position, so that the required belt tension due to the load-bearing capacity of the nozzle systems 8 and 9 can be reduced. Therefore, the device is able to comparatively heavy metal strips made of a high density metal with relative low sag as part of the weight is due to the stabilizing Floating nozzle system is carried.
- these nozzle systems can also a particularly pronounced in the area of the strongest concave curvature exert transverse stabilizing effect on the tape.
- the belt With thin ribbons, with the same system the belt without any significant tensile forces in the same Lead form, because of the stabilizing floating nozzle system, the belt in this Position as a stable position between gas springs.
- a sensor 10 which is located in the vicinity of the Low point of the band is arranged. With this sensor it can be, for. B. is a sensor 10 working with microwaves according to the radar principle. It is advantageous to arrange several sensors over the bandwidth, since the Bandwidth for one and the same device can be varied during operation can. In this way, several sensors are available for wide bands 1 Available, while in the narrowest 1 band at least one sensor 10 always Belt position recorded reliably.
- Figure 2 is an embodiment of the device with a vertical belt run behind the Roll 2 shown.
- the entire treatment part including the Roll 2 surrounded by a protective gas-tight housing 6.
- the tape enters through the schematically illustrated sealing device 7.
- This Device is, according to the prior art, for. B. as a roller seal executed and requires no further explanation.
- the belt 1 In the descending belt run, the belt 1 first passes through the heating part 4 and then the first area of the cooling part 5. On both sides of the belt 1 are the stabilizing blowing nozzle systems 8l, 8r for the Heating section and 9l and 9r for the cooling section.
- the tape has a concave course when viewed from above Curvature.
- This course is in a fluid 12, for. B. water.
- This Fluid 12 usually a suitable liquid, also delimits the interior of the Housing 6 against the outside atmosphere and thus separates the protective gas from the ambient air.
- the position of the tape run is determined at the bottom of the concave curvature at least one sensor 10 detected and checked so that the desired shape is maintained under all operating conditions.
- this tape height detection works advantageously on the sounder principle.
- FIG. 3 Further details of a typical belt run of the device according to the invention are shown Figure 3.
- the device is sealed from the outside atmosphere on Belt entry through a double roller seal 41.
- the roller combination 40 serves the dismantling of the belt tension from the higher tension in front of the roller combination 40 the lower draft in the heat treatment part.
- a control roller 42 is arranged on the belt run.
- In front of this control roller 42 is a sensor for detecting the tape position and another behind this control roller 42 Pinch roller of smaller diameter, which is a concern even with low tape tension of the band 1 on the pulley 42 ensures.
- closure device 43 which consists of two perpendicular to the Band movable closure members.
- this Closure device 43 is by the advantageously water-cooled and with heat insulation provided inlet neck 44 formed tape inlet opening in the Heating part 4, which is also at a considerable temperature of z. B. about 950 ° C can be operated, closed, so that no heat from the tape standstill the heat treatment part 4 can exit upwards and possibly there damage to the deflection roller 42 or its coating.
- a cooling device (not shown) may be provided which is not permitted excludes high roll temperatures.
- a cooling device can, for. B. by Blow the tape with low temperature shielding gas. It can also be advantageous, the roller combination 40 to reduce the tape tension on the low value in the treatment part immediately before the band enters it to be arranged so that the role 2 is unnecessary.
- the heat treatment part 4 and the first area 5 of the The cooling section is indicated in FIG. 3 by the reference symbol 45.
- the tape 1 From the refrigerator compartment 5 is the tape 1 through a protective gas-tight channel that in the Liquid cap 12 immersed, guided.
- the one running in the direction of roll 3 Belt is passed through squeeze rollers 11 and then still on the belt adhering fluid 12, usually water, with the convection dryer 13, the can be heated, dried.
- Figure 4 shows as an example more details of the embodiment with vertical Tape.
- three superimposed heating zones 4 and a cooling zone 5 located below these heating zones 4 is shown.
- the Flow guides of the three heating zones 4 and those below Cooling zone 5 have in the longitudinal section shown in Figure 4 transverse to the belt run the shape of a U.
- the legs of the U point downwards. It is also the reverse arrangement, i.e. upward pointing U-legs. possible.
- the zones are separated from each other in the heating section Trapezoidal sheet floors 26 made.
- the first floor 26 is located a layer of insulating material 27 below this trapezoidal sheet, so that a temperature difference is set between the first and the second zone and can be maintained.
- This version of the intermediate floor 26 in Connection with thermal insulation 27 is of course possible between all zones.
- the wall structure shown in Figure 5 is particularly advantageous.
- the outer skin consists of a gas-tight welded sheet steel housing 30.
- On the inner wall there are holding pins 31 for layers 32 of heat insulation material, for. B. attached by welding.
- These layers 32 applied to the outer wall 30 consist of fibers with a high SiO 2 content, which have good mechanical properties, but tend to decay at high temperatures above approximately 800 ° C. and in a hydrogen atmosphere, since SiO 2 is reduced to SiO.
- a film 33 made of a highly heat-resistant material e.g. B. placed a nickel-chromium alloy.
- a further film 33 made of highly heat-resistant material is used for covering the relatively small-sized sheet metal elements 35 as mechanical protection, preferably made of perforated sheet metal. All layers are held by platelets 36 on the pins 31 are attached. To easily change the outer fiber layers too can, it is appropriate to such platelets, preferably made of thin sheet metal manufactured, also to be applied as an intermediate fastening to the first film layer.
- Impingement jets of the heating or cooling fluid in particular a gas, e.g. pure Hydrogen or a hydrogen / nitrogen mixture with a high hydrogen content, blow, which exerts a flat force on the tape, which is similar a spring increases with decreasing distance between band 1 and nozzle field; this leads to a position stabilizing effect on the tape, the size this stabilizing force from the dynamic pressure of the blowing fluid in the Jet exit depends on the impact jets.
- a gas e.g. pure Hydrogen or a hydrogen / nitrogen mixture with a high hydrogen content
- the distance between the arranged on both sides of the belt 1 Nozzle fields in the heat treatment part is heating 4 in the two areas and cooling 5 are essentially constant, which means that the Distance change is a maximum of ⁇ 10%.
- a suitable nozzle system for achieving the desired effect is described in the EP 0 864 518 B1 and has successive ones in the tape running direction Nozzle surfaces with nozzle openings from round holes and / or slot nozzles, where the width of the nozzle surfaces - measured parallel to the belt running direction - over the Width of the nozzle field - measured perpendicular to the strip running direction - changes.
- the Nozzle surfaces are at least partially circumferential by slot nozzles edged.
- This stabilizing nozzle system can be designed and operated in such a way that the belt 1 through the nozzle system also stabilizes transverse to the belt run experiences, this transverse stabilizing effect in the area of the belt run with - of considered above - concave curvature is particularly pronounced.
- Any suitable fluid can be used as the barrier fluid for the region 12, wherein preferably working with a liquid.
- a suitable liquid can be found under Consideration of the chemical compatibility with the material of the metallic Tapes can be selected.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Advancing Webs (AREA)
Abstract
Description
- Figur 1
- eine Ausführung der Vorrichtung, bei welcher sich die den Behandlungsbereich des Bandes eingrenzenden Rollen auf gleicher Höhe befinden,
- Figur 2
- eine Ausführung der Vorrichtung mit vertikalem Bandlauf, an den sich der Bereich mit - von oben betrachtet - konkavem Bandlauf anschließt,
- Figur 3
- eine schematische Darstellung der Vorrichtung mit vertikalem Bandlauf und weiterer Details zur Bandführung,
- Figur 4
- einen Ausschnitt des Behandlungsteiles für eine Vorrichtung mit vertikaler Bandführung, in dem weitere Ausführungsdetails zu erkennen sind, und
- Figur 5
- das Schema einer vorteilhaften Ausführung der Außenwand.
Claims (18)
- Vorrichtung zur Wärmebehandlung metallischer Bänder (1) im Durchlauf, in einer Gas-Atmosphäre insbesondere zum Betrieb unter Schutzgas geringer Dichte, wie z. B. Stickstoff-Wasserstoffgemisch mit hohem Wasserstoffanteil, gekennzeichnet durch die Kombination der folgenden Merkmale:a) im Wärmebehandlungsteil erfolgen die gesamte Erwärmung (4) und zumindest der erste Teil der Abkühlung (5) überwiegend mittels erzwungener Konvektion durch Beblasen des Bandes (1) mit Prallstrahlen eines Erwärmungs- bzw. Kühlfluides;b) das Band wird im Wärmebehandlungsteil während der Erwärmung (4) und zumindest im ersten Teil der Abkühlung (5) berührungsfrei geführt;c) Düsenfelder (8o, 8u, 9o, 9u bzw. 8r, 8l, 9r, 9l) zur Erzeugung dieser Prallstrahlen üben durch flächenhafte Entfaltung einer Kraft auf das Band, die ähnlich einer Feder mit abnehmendem Abstand zwischen Band (1) und Düsenfeld zunimmt, eine lagestabilisierende Wirkung auf das Band aus, wobei die Größe dieser Stabilisierungskraft von dem Staudruck des Beblasungsfluides im Düsenaustritt der Prallstrahlen abhängt;d) der Abstand zwischen den zu beiden Seiten des Bandes (1) angeordneten Düsenfeldern (8, 9) im Wärmebehandlungsteil (4) ist in den jeweiligen Bereichen, also Erwärmen (4) und Kühlen (5), im Wesentlichen jeweils konstant;e) das Band (1) wird in dem durch Rollen (2, 3) eingegrenzten Behandlungsbereich (4, 5) unter Mitwirkung der Schwerkraft gespannt;f) der Bandverlauf zwischen den Rollen (2, 3), die den Behandlungsbereich (4, 5) eingrenzen, weist, von oben betrachtet, zumindest in einem Teilbereich eine konkave Krümmung auf; undg) die Kontrolle der Bandlage erfolgt - im Längsschnitt betrachtet - im Bereich des Tiefpunktes der konkaven Krümmung durch mindestens einen berührungslos arbeitenden Sensor (10).
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die den Behandlungsbereich (4, 5) eingrenzenden Rollen (2,3) auf gleicher Höhe liegen.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die den Behandlungsbereich (4, 5) eingrenzenden Rollen (2, 3) sich in unterschiedlicher Höhe befinden.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Rollen (2, 3) vertikal übereinander angeordnet sind.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Band (1) durch das Düsensystem zur Prallstrahlbeblasung auch eine Stabilisierung quer zum Bandlauf erfährt, wobei diese Querstabilisierungswirkung im Bereich des Bandlaufs mit, von oben betrachtet, konkaver Krümmung besonders ausgeprägt ist.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der, von oben betrachtet, konkav gekrümmte Bandverlauf im Behandlungsbereich in einem Fluid (12) erfolgt, das vom Beblasungsfluid im Erwärmungsteil (4) und im ersten Teil des Kühlbereichs (5) unterschiedlich ist und zugleich den die Vorrichtung eingrenzenden Raum (6) gegenüber der Umgebungsatmosphäre abgrenzt.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass in dem zur Abgrenzung des Vorrichtungsinnenraums gegenüber der Außenatmosphäre dienenden Fluid (12) oberhalb und unterhalb des Bandes die Bandlage stabilisierende Düsen (9i, 9a) angeordnet sind, die mit dem zur Abgrenzung von der Außenatmosphäre dienenden Fluid betrieben werden.
- Vorrichtung nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass als Fluid eine geeignete Flüssigkeit, insbesondere Wasser, verwendet wird.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Sensor (10) zur Erfassung der Bandlage nach dem Echolot-Prinzip arbeitet.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die den Behandlungsbereich am Bandaustritt abgrenzenden Rollen Abquetschrollen (11) sind.
- Vorrichtung nach mindestens einem der Ansprüche 3 bis 10, dadurch gekennzeichnet, dass, in Bandlaufrichtung betrachtet, hinter der Umlenkrolle (2), die den Bandbehandlungsbereich am Bandeintritt (7) abgrenzt, das Band vertikal verläuft und sich an das untere Ende des vertikalen Bandlaufs eine - von oben betrachtet - konkave Bandkrümmung anschließt, die sich in dem den Behandlungsraum abgrenzenden Fluidverschluss (12) befindet.
- Vorrichtung nach einem der Ansprüche 3 bis 11, dadurch gekennzeichnet, dass der Fluidverschluss eine geeignete Flüssigkeit, insbesondere Wasser, aufweist.
- Vorrichtung nach mindestens einem der Ansprüche 3 bis 12, dadurch gekennzeichnet, dass die Beblasung des Bandes zum Zweck der konvektiven Wärmeübertragung mittels Strömungssystemen (20) erfolgt, die im Längsschnitt, quer zur Bandebene betrachtet,a) die Form eines U mit Schenkeln (20 und 24) parallel zum Bandlauf (1) haben,b) wobei der dem Band zugewandte Schenkel des U (24) mit dem Stabilisierungsdüsensystem (23) bestückt ist, undc) in den vom Band abgewandten Schenkel des U (20) ein Radialventilator (21) eingebaut ist, undd) das Strömungsführungsgehäuse an der Außenwand mit Hilfe eines kronenförmigen Bauteils (22) befestigt ist, wobeie) die Kraft von den Spitzen der Zacken der Krone auf das Außengehäuse und die mit diesem verbundene Tragkonstruktion übertragen wird.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass zwischen den Schenkeln (20 und 24) der U-förmigen Strömungsführung zur Beheizung der Vorrichtung im Erwärmungsteil (4) Strahlheizrohe (25) eingebaut sind und sich im Kühlteil (5) zur Kühlung des Beblasungsfluides an dieser Stelle Kühler (28), insbesondere Wärmetauscher, befinden.
- Vorrichtung nach mindestens einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, dass die Abgrenzungen einzelner Zonen der Vorrichtung voneinander durch Zwischenböden aus Blechen (26), die wie Trapezbleche verformt sind, gebildet werden.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, dass die Zwischenböden aus Trapezblech (26) zur Verminderung des Temperaturausgleichs zwischen benachbarten Zonen zumindest einseitig mit Lagen aus Wärmeisolationswerkstoffen (27) versehen sind.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass das Stabilisierungsdüsensystem aus in Bandlaufrichtung aufeinanderfolgenden Düsenflächen mit Düsenöffnungen aus Rundlöchern und/oder Schlitzdüsen besteht, deren Breite - gemessen parallel zur Bandlaufrichtung - sich über der Breite des Düsenfeldes - gemessen senkrecht zur Bandlaufrichtung - verändert, und dass die Düsenflächen mindestens teilweise an ihrem Umfang durch Schlitzdüsen eingefasst sind.
- Vorrichtung nach mindestens einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass die gasdichte Außenhaut (30) auf ihrer Innenseite einen Wandaufbau aufweist, der von außen nach innen wie folgt zusammengesetzt ist:wobei die einzelnen Lagen dieses Wandaufbaus durch Aufspießen auf Stifte (31), die auf der Innenwand der gasdichten Außenhaut (30) befestigt sind, gehalten und auf diese Stifte nach Einbringung des vorbeschriebenen Aufbaus entsprechende Befestigungsplättchen (36) aufgeschoben werden sind.a) äußere Lagen (32) aus überwiegend Siliziumdioxid SiO2 enthaltenden Fasern,b) eine Folie (33) aus hitzebeständigem metallischem Werkstoff, insbesondere einer Nickel-Chrom-Legierung,c) Lagen von Fasermatten (34) aus Aluminiumoxid Al2O3d) Folie (33) aus hoch hitzebeständigem metallischen Werkstoff insbesondere einer Nickel-Chrom-Legierunge) eine Lochblechabdeckung (35), bestehend aus kleinformatigen, sich zum Teil überlappenden Lochblechen
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10303228A DE10303228B3 (de) | 2003-01-28 | 2003-01-28 | Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf |
| DE10303228 | 2003-01-28 |
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| Publication Number | Publication Date |
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| EP1443120A1 true EP1443120A1 (de) | 2004-08-04 |
| EP1443120B1 EP1443120B1 (de) | 2006-07-12 |
| EP1443120B2 EP1443120B2 (de) | 2010-10-13 |
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| EP03029982A Expired - Lifetime EP1443120B2 (de) | 2003-01-28 | 2003-12-30 | Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6895692B2 (de) |
| EP (1) | EP1443120B2 (de) |
| AT (1) | ATE332983T1 (de) |
| DE (2) | DE10303228B3 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2722112B1 (de) | 2012-10-19 | 2015-06-24 | BWG Bergwerk- Und Walzwerk-Maschinenbau GmbH | Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes |
| WO2016096173A1 (de) * | 2014-12-18 | 2016-06-23 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes |
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| US20090044357A1 (en) * | 2007-08-16 | 2009-02-19 | The Procter & Gamble Company | Electric toothbrushes |
| DE10326071B4 (de) * | 2003-06-10 | 2005-09-01 | Kramer, Carl, Prof. Dr.-Ing. | Umlenkvorrichtung für bewegte Bänder |
| DE102004028236B3 (de) * | 2004-06-11 | 2005-11-17 | Rolf-Josef Schwartz | Verfahren und Vorrichtung zum Erwärmen von Werkstücken vor der Warm- oder Halbwarmumformung |
| FI121309B (fi) * | 2006-06-01 | 2010-09-30 | Outokumpu Oy | Tapa hallita lämpökäsittelyuunissa olevaa metallinauhaa |
| DE102008029432B3 (de) * | 2008-06-23 | 2009-09-17 | Prinovis Ltd. & Co. Kg | Trocknungsanlage für durchlaufende Warenbahnen in Form von bedruckten und/oder beschichteten Papierbahnen |
| AT510468B1 (de) * | 2010-09-21 | 2012-07-15 | Voestalpine Stahl Gmbh | Durchlaufofen für ein insbesondere metallisches band |
| EP2818571B1 (de) * | 2013-06-25 | 2017-02-08 | Schwartz GmbH | Eindiffundieren von Aluminium-Silizium in eine Stahlblechbahn |
| CN103388965A (zh) * | 2013-06-26 | 2013-11-13 | 江苏中新资源集团有限公司 | 一种布料干燥器 |
| CN105800376A (zh) * | 2016-04-29 | 2016-07-27 | 芜湖顺成电子有限公司 | 电线输送收线装置 |
| DE102017104909A1 (de) | 2017-03-08 | 2018-09-13 | Ebner Industrieofenbau Gmbh | Bandschwebeanlage mit einem Düsensystem |
| DE102024130806A1 (de) * | 2024-10-22 | 2026-04-23 | Drever International S.A. | Heizeinrichtung zum erhitzen eines metallischen bands, system zum regeln einer innengasatmosphäre, produktionsstrecke und verfahren zum erhitzen eines metallischen bands |
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- 2003-12-30 EP EP03029982A patent/EP1443120B2/de not_active Expired - Lifetime
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2722112B1 (de) | 2012-10-19 | 2015-06-24 | BWG Bergwerk- Und Walzwerk-Maschinenbau GmbH | Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes |
| WO2016096173A1 (de) * | 2014-12-18 | 2016-06-23 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1443120B1 (de) | 2006-07-12 |
| ATE332983T1 (de) | 2006-08-15 |
| EP1443120B2 (de) | 2010-10-13 |
| DE50304206D1 (de) | 2006-08-24 |
| US6895692B2 (en) | 2005-05-24 |
| DE10303228B3 (de) | 2004-04-15 |
| US20040154182A1 (en) | 2004-08-12 |
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