EP1212154A1 - Method and device for producing a corrugated sheet that is provided with a corrugation - Google Patents
Method and device for producing a corrugated sheet that is provided with a corrugationInfo
- Publication number
- EP1212154A1 EP1212154A1 EP00965963A EP00965963A EP1212154A1 EP 1212154 A1 EP1212154 A1 EP 1212154A1 EP 00965963 A EP00965963 A EP 00965963A EP 00965963 A EP00965963 A EP 00965963A EP 1212154 A1 EP1212154 A1 EP 1212154A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrugated
- sheet
- profile
- profile segments
- rollers
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1016—Transverse corrugating
Definitions
- the invention relates to a method and to a device for producing a corrugated sheet with a corrugation with a thickness of less than 0.06 mm, preferably less than 0.04 mm.
- honeycomb bodies are used in particular to form a metallic honeycomb body.
- the honeycomb body can be used as a catalyst carrier body for catalytic converters, in particular as a catalytic converter for exhaust systems of motor vehicles.
- Such a honeycomb body in particular if it is electrically heated, can also be used as a reformer.
- a wide variety of configurations of honeycomb bodies are known. As an example, reference is made to the disclosure content of EP 0 45 737 B1.
- WO 98/18557 proposes a method in which a structure is introduced into a strip-shaped metal sheet. The height of the structure is greater than a target structure height. This is followed by a calibration step in which a force is exerted on the structure of the metal sheet, so that after the calibration step the height of the structure corresponds to the desired structure height.
- WO 98/09745 furthermore discloses a method for producing a corrugated sheet having a corrugation and having a microstructure.
- a micro structure is first introduced into an undulating metal sheet.
- the metal sheet is then fed to a pair of intermeshing metal rollers, which have structures arranged longitudinally with respect to the microstructure for receiving the microstructure.
- the corrugation of the metal sheet takes place without the microstructures being pressed flat.
- corrugated sheet which has a corrugation tends to curl up.
- the tendency of the corrugated sheet to roll up depends, among other things, on the thickness of the sheet. The thinner the sheet, the more likely it is to curl up.
- honeycomb bodies are used as catalyst carrier bodies for catalytic converters, in particular as catalytic converters for exhaust systems of motor vehicles, it is desirable that the corrugated sheet have the smallest possible thickness. This has the advantage that the heat capacity of such a honeycomb body is reduced, so that the honeycomb body can reach its working temperature relatively quickly. In particular in the case of a honeycomb body which can be electrically heated, the reduced heat capacity of the honeycomb body has advantages.
- Such a tendency is irrespective of whether the metal strip is unwound from a club and passed between the intermeshing corrugated rollers, or whether a flat, smooth metal sheet is passed between the corrugated rollers.
- the tendency of the corrugated sheet to roll up is particularly troublesome when the corrugated sheet is divided into sheet strips of a certain length after the corrugation process.
- the individual metal strips can have different deflections.
- the individual metal strips can also roll up in a spiral, the spiral-wound metal strips having different stalt can take.
- the spirally wound sheet metal strips can vary.
- the bent shape of the sheet metal strips makes handling the stack difficult.
- the present invention is based on the objective of specifying a method and a device by means of which a corrugated sheet can be produced which has no or only a very slight tendency to roll up.
- Another object of the invention is to provide a method and a device by means of which a specific inclination of the corrugated sheet can be rolled up.
- a corrugated sheet with a thickness D in particular with a thickness D of less than 0.06 mm, preferably less than 0.04 mm, can be produced if it is between two intermeshing rollers, each of which has a profile formed by profile segments and the backlash between two opposite flanks of the profile segments is greater than the thickness of the sheet.
- Such a corrugated sheet has little or no tendency to roll up.
- the procedure according to the invention is a reduction in the tensile and compressive forces on the sheet is reduced. A reduction in friction is also achieved.
- a corrugated sheet is divided into sheet strips of a predetermined length and the sheet strips are stacked on top of one another to form a stack, the sheet strips lie essentially parallel to one another.
- the slope of the metal strips is also reduced because the ends of the metal strips stand out.
- a honeycomb body can be produced from such a stack of sheets.
- the backlash is preferably formed on both sides of the profile segment of the one roller engaging between two profile segments of the other roller in such a way that between two flanks of the adjacent profile segments is greater than the thickness of the sheet.
- a method for producing a metal sheet having a corrugation in which a sheet having a thickness is passed between two intermeshing corrugated rolls, each of which has a profile formed by profile segments, at least some of the profile segments being at least that one of the two corrugated rollers by which the sheet is deformed is designed so that the profile segments have a head and a shaft extending from head to foot, the shaft having two opposite flanks and at least one of the flanks essentially parallel to a center line of the Profile segment runs.
- Such a procedure also ensures that the sheet produced has essentially no tendency to bulge or roll up about an axis running transversely to the longitudinal direction of the sheet.
- a corrugated sheet having a corrugation is preferably produced in such a way that the corrugated sheet is deformed by profile segments which have a head which is essentially rounded in cross section and a shaft which extends from head to foot, the shaft having a substantially constant width Further development of the method ensures that the tendency of the corrugated sheet to roll up is further minimized
- At least one corrugated roller is driven. If only one corrugated roller is driven, the other corrugated roller is dragged off the sheet. This can lead to an uneven loading of the sheet. With very thin sheets, especially with metal foals with a thickness of less than 50 ⁇ m, there is a risk that when the corrugated roller is being towed, the metal foil is damaged. It is also possible that the Weil profile is formed unevenly. It is therefore proposed that both corrugated rollers be driven. Each roller can have its own drive, which, by means of appropriate control means, enables synchronous movement of the corrugated rollers to simplify the process control However, it is proposed that only one corrugated roller is driven by an auxiliary unit, both corrugated rollers being kinematically connected to one another. The connection can be made, for example, by a corresponding gear or clutch system
- the shape of the corrugation can also be influenced by the adjustability of the distance between the longitudinal axes of the corrugated rollers. It has been found that by varying the distance between the longitudinal axes of the corrugated rollers, the shape of the corrugation changes from an essentially sinusoidal corrugation to a sawtooth-shaped corrugation can be changed by changing the state of the longitudinal axes of the corrugated rollers, there is also the possibility of achieving a targeted and reproducible curvature of the corrugated sheet about an axis running essentially transversely to the longitudinal axis of the sheet. It is also possible to influence the tendency of the corrugated sheet to curl up by adjusting the distance of the longitudinal axis of the corrugated rolls accordingly.
- the sheet be passed between the corrugated rollers essentially without lubricant. This avoids time-consuming cleaning of the corrugated sheet. Such may be necessary if a honeycomb body is to be soldered.
- the corrugated rolls produce a corrugated sheet with predefinable wavelength and wave height, the ratio of wavelength to wave height being less than 2.5, preferably less than 1.5.
- the method according to the invention enables a very large wave height in relation to the wavelength, in particular for very thin sheets, because only very low tensile and compressive forces are introduced into the sheets during the forming due to the backlash.
- a device for producing a corrugated sheet having a corrugation with two intermeshing corrugated rolls between which a sheet for a catalyst carrier body with a thickness D, in particular with a thickness D of less than 0.06 mm, preferably less than 0.04 mm, is feasible, with each corrugated roller having a profile which is formed by profile segments and the backlash between two opposite flanks of the profile segments is greater than the thickness of the sheet.
- a device for producing a corrugated sheet having a corrugation is provided with two combing corrugated rolls between which a sheet for a catalyst carrier body with a thickness D, in particular with a thickness D of less than 0.06 mm, preferably less than 0 .04 mm, can be passed through, whereby at least em part of the profile segments is formed with at least one of the two corrugated rollers through the sheet metal ⁇ , so that the profile segments have a head and a shaft extending from head to foot, the Shank has two opposite flanks and at least one of the flanks runs essentially parallel to a center line of the profile segment
- Each roller preferably has a profile which is formed by profile segments, the profile segments having a head which is essentially rounded in cross section and a shaft which extends from head to foot and has an essentially constant width
- the profile segments are designed such that a corrugated sheet with a wavelength and a wave height can be produced, the ratio of wavelength to wave height being less than 2.5.
- the ratio is preferably less than 1.5 and in particular less than 1 It is particularly advantageous to make the profile segments very slim, in particular with a corresponding ratio of the height and width of the profile segments.
- the strain on the thin sheets during forming is so small due to the backlash, the manufacture of such thin sheets essentially without the tendency to move around to arch or roll up an axis running transversely to the longitudinal axis of the sheet. An additional bending process that can lead to material fatigue or brittleness can thus be avoided, particularly in the case of very thin sheets
- the device according to the invention for producing a corrugated sheet for a catalyst carrier body
- the catalyst carrier body comprises a tubular casing and a honeycomb body
- the honeycomb body at least partially has corrugated sheets which have a plurality of channels through which a fluid can flow, the corrugated sheets having a ratio of wavelength to wave height of less than 2.5, in particular less than 1.5 , exhibit.
- Such metallic honeycomb bodies usually have a number of sheet metal layers with smooth sheets and corrugated sheets which are intertwined or twisted. In such a honeycomb body, the number of sheet layers can be reduced with the corrugated sheets that are produced with the device according to the invention due to the specified ratio of wavelength to wave height.
- Such a honeycomb body has a higher rigidity, especially in the edge areas near the casing tube due to the narrow channel shape with the steep flanks.
- FIG. 1 shows schematically an embodiment of a device for producing a corrugated sheet having a corrugation
- FIG. 2 enlarges a profile of a corrugated roller
- FIG. 3 schematically and enlarged an area of engagement of two corrugated rolls
- FIG. 4 shows an area of engagement of two corrugated rollers with a sheet metal located in the area of engagement
- FIG. 5 shows a catalyst carrier body with a corrugated sheet produced according to the invention
- Figure 6 is a detailed view of a corrugated sheet.
- FIG. 1 schematically shows a device 1 for producing a corrugated sheet 8.
- the device 1 comprises two intermeshing corrugated rolls 2, 3.
- the axes 4, 5 of the corrugated rolls 2, 3 run parallel to one another.
- the distance between the longitudinal axes 4, 5 is designated by A.
- the corrugated rollers 2, 3 Between the corrugated rollers 2, 3 runs a strip-shaped sheet 6, which is unwound from a club 7.
- the sheet 6 has a thickness D.
- a corrugation 9 is impressed on the sheet 6.
- the corrugated sheet 8 can be provided for further processing.
- the corrugation 9 of the corrugated sheet 8 has a corrugation height H.
- FIG. 1 does not show the drive units or the drive unit for the corrugated rollers 2, 3.
- the corrugated rollers are preferably kinematically connected to one another.
- one of the corrugated rollers 2, 3 is driven by a drive unit, which can be an electric motor, for example.
- Figure 2 shows an enlarged and schematic of a corrugated roller 3. Correspondingly, the corrugated roller 2 is also formed.
- the corrugated roller 3 has a profile 10.
- the profile 10 is formed by a plurality of profile segments arranged on the circumference of the roller and at a distance from one another 1 1 formed There are gaps between the adjacent profile segments 11
- Each profile segment has a substantially rounded head
- a shaft 14 extends from the head 13 to the foot 15.
- the shaft 14 has a substantially constant width B.
- the transition between the shaft 14 and the base 16 of the gap is rounded in the foot region
- Each shaft 14 has two opposite flanks 18, 20. In the exemplary embodiment shown, both flanks run essentially parallel to a center line 21 of the profile segment. This is not absolutely necessary.
- a part of the profile segments 11 can be designed such that the profile segments 11 have one head and one have shaft 14 extending from head 13 to foot 15, flank 18 or 20 running essentially parallel to center line 21 of profile segment 11.
- Corrugated rollers 2, 3 may have profiles of different geometries. The rotary movement of the corrugated rollers is preferably synchronized
- the profiles 11 shown in FIG. 2 are formed by a head 13 which is semicircular in cross section.
- the width B of the shaft 14 corresponds to the diameter of the semicircle of the head 13
- FIG. 3 shows an engagement area of the combing corrugated rolls 2, 3.
- the configuration of the profiles 10 of the corrugated rolls 2, 3 is identical in the exemplary embodiment shown
- the profiles 10 of the corrugated rollers 2, 3 are designed such that em flank play F between two opposite flanks 17, 18 is dimensioned such that the individual flanks of the profile segments do not roll on one another.
- the flank play F can be changed the distance A of the longitudinal axes 4, 5 of the corrugated rollers can be changed
- the backlash F is preferably greater than the thickness of a sheet 6, as shown in FIG. 4.
- FIG. 4 shows the engagement area shown in FIG. 3 with a sheet 6 of thickness D.
- Figure 4 shows schematically that the sheet 6 is not squeezed between the flanks 17, 18.
- the formation of the corrugation 9 takes place essentially by bending and drawing processes.
- FIG. 5 schematically shows a top view of a catalyst carrier body 24 with a corrugated sheet 8 produced according to the invention.
- the catalyst delay body 24 has a jacket tube 25 which encloses a number of sheet layers 28 which are structured in such a way that they form channels 27 through which an exhaust gas can flow ,
- the sheet layers 28 comprise smooth sheets 29 and corrugated sheets 8.
- FIG. 6 shows a detailed view of a corrugated sheet 8 with a thickness D and a wavelength 22 and a wave height 23.
- the illustrated ratio of wavelength 22 to wave height 23 corresponds to approximately 2.
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19943845 | 1999-09-13 | ||
DE19943845 | 1999-09-13 | ||
DE19957585 | 1999-11-30 | ||
DE19957585A DE19957585A1 (en) | 1999-09-13 | 1999-11-30 | Method and device for producing a corrugated sheet having a corrugation |
PCT/EP2000/008861 WO2001019545A1 (en) | 1999-09-13 | 2000-09-11 | Method and device for producing a corrugated sheet that is provided with a corrugation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1212154A1 true EP1212154A1 (en) | 2002-06-12 |
Family
ID=26054939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00965963A Withdrawn EP1212154A1 (en) | 1999-09-13 | 2000-09-11 | Method and device for producing a corrugated sheet that is provided with a corrugation |
Country Status (5)
Country | Link |
---|---|
US (1) | US20020134494A1 (en) |
EP (1) | EP1212154A1 (en) |
CN (1) | CN1373693A (en) |
AU (1) | AU7652900A (en) |
WO (1) | WO2001019545A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SI1375023T1 (en) * | 2002-06-27 | 2005-02-28 | Metawell Gmbh | Method of deforming a metallic flat material, method of production of a composite material as well as apparatuses for carrying out these methods |
DE10327455A1 (en) * | 2003-06-18 | 2005-01-05 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method and device for producing a structured sheet-metal strip |
US8104320B2 (en) * | 2008-02-15 | 2012-01-31 | The Boeing Company | Method and apparatus for corrugating sheet metal |
CN101829718B (en) * | 2010-05-21 | 2012-07-04 | 深圳市金洲精工科技股份有限公司 | Rolling forming device and rolling forming method of corrugated steel metal part |
CN103861942A (en) * | 2012-12-13 | 2014-06-18 | 南通中船机械制造有限公司 | Multi-functional die structure |
DE102012024808A1 (en) * | 2012-12-19 | 2014-06-26 | Outokumpu Nirosta Gmbh | Method and device for producing profiled metal strips |
DE102016209058A1 (en) * | 2016-05-25 | 2017-11-30 | Continental Automotive Gmbh | Honeycomb body for exhaust aftertreatment |
CN106734332B (en) * | 2017-03-28 | 2018-07-06 | 佛山市南海力丰机床有限公司 | A kind of depth type bellows whole set of processing equipment |
CN107150079A (en) * | 2017-05-18 | 2017-09-12 | 安岩晨 | Metal rectangular fillet/non-fillet vertical bar ripple rolling device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1617163A (en) * | 1920-09-14 | 1927-02-08 | Ralph D Mershon | Manufacture of electrodes for electrolytic apparatus |
US2769479A (en) * | 1951-03-23 | 1956-11-06 | Bishop And Babcock Mfg Company | Rolls for corrugating metal strips |
JPS59215220A (en) * | 1983-05-23 | 1984-12-05 | Azuma Kogyo Kk | Manufacture of corrugated sheet constituted of heat-insulation steel sheet |
AT395548B (en) * | 1986-02-03 | 1993-01-25 | Haboeck Herwig | ROLLING DEVICE FOR PRODUCING CORRUGATED PANELS |
US4823583A (en) * | 1987-06-11 | 1989-04-25 | W. R. Grace & Co.-Conn. | Particulate trap |
DE3904175A1 (en) * | 1989-02-11 | 1990-08-16 | Handel & Mack Gmbh & Co Kg | Apparatus and method for the fine corrugation of sheet metal, and corrugated sheet metal |
DE19643934A1 (en) * | 1996-10-30 | 1998-05-07 | Emitec Emissionstechnologie | Method and device for producing structured metal sheets |
-
2000
- 2000-09-11 CN CN00812794.8A patent/CN1373693A/en active Pending
- 2000-09-11 EP EP00965963A patent/EP1212154A1/en not_active Withdrawn
- 2000-09-11 WO PCT/EP2000/008861 patent/WO2001019545A1/en not_active Application Discontinuation
- 2000-09-11 AU AU76529/00A patent/AU7652900A/en not_active Abandoned
-
2002
- 2002-03-27 US US10/113,634 patent/US20020134494A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0119545A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20020134494A1 (en) | 2002-09-26 |
WO2001019545A1 (en) | 2001-03-22 |
CN1373693A (en) | 2002-10-09 |
AU7652900A (en) | 2001-04-17 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BRUECK, ROLF Inventor name: REIZIG, MEIKE |
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