US20010015087A1 - Method and sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels - Google Patents
Method and sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels Download PDFInfo
- Publication number
- US20010015087A1 US20010015087A1 US09/729,063 US72906300A US2001015087A1 US 20010015087 A1 US20010015087 A1 US 20010015087A1 US 72906300 A US72906300 A US 72906300A US 2001015087 A1 US2001015087 A1 US 2001015087A1
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- United States
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- sheet metal
- end section
- angle
- area
- metal layers
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- 239000002184 metal Substances 0.000 title claims abstract description 116
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 30
- 239000012530 fluid Substances 0.000 title claims description 11
- 238000005452 bending Methods 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 36
- 238000004804 winding Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000012791 sliding layer Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49345—Catalytic device making
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
Definitions
- the subject-matter of the invention relates to a method and to a sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels.
- Metallic honeycomb bodies are known which are used as catalytic converter supporting bodies. Such a honeycomb body is composed of a large number of at least partly structured sheet metal layers. Numerous examples of the configuration of a honeycomb body are known from, for example, U.S. Pat. No. 4,923,109, International Patent Disclosure WO 90/03220, Published, European Patent Application EP 0 322 566 A1 and International Patent Disclosure WO 94/01661.
- International Patent Disclosure WO 97/00725 deals with the manufacturing of a honeycomb body with a large number of fluid permeable channels made from a large number of at least partly structured layers.
- This reference proposes that at least one stack of a plurality of at least partly structured sheet metal layers is layered up. Each stack is folded over on itself about a bending line in order to construct a sheet metal pack.
- Each sheet metal pack is disposed in a mold that has a contour corresponding to the external shape of the honeycomb body to be manufactured.
- Each stack is held by a looping device disposed in a central area of the mold. All the stacks are subsequently looped into a honeycomb body by rotation of the looping device relative to the mold.
- the honeycomb body prepared in this manner is subsequently fitted into a casing tube.
- a further method for manufacturing a honeycomb body is known from International Patent Disclosure WO 97/00135.
- the honeycomb body is brazed to the casing tube. With this, it is substantially the end areas of the individual sheet metal layers that are brazed to the casing tube.
- honeycomb bodies manufactured in this way there is the danger that by folding each stack over on itself and looping the stack into a honeycomb body, in the area where the individual sheet metal layers join the casing tube, some sheet metal layers are brazed to the casing tube pipe over a relatively large part of the periphery of the casing surface of the casing tube, while other sheet metal layers are only brazed to the casing tube over a relatively small section of the periphery.
- This type of joining of the honeycomb body to the casing tube carries the danger that the honeycomb body will be damaged because of its mechanical and thermal stressing. In particular, there is the danger that the brazed connection between individual sheet metal layers will be at least partially destroyed.
- a method for manufacturing a honeycomb body with a large number of fluid permeable channels includes the step of forming a plurality of stacks by layering up a plurality of sheet metal layers for each of the stacks, some of the sheet metal layers are at least partly structured sheet metal layers.
- Each of the stacks are folded about a bending line resulting in a plurality of sheet metal packs being formed such that each of the sheet metal packs has a curved first end area and a second end area opposite the first end area.
- the second end area has a first end section and a second end section.
- the first end section has a first end face forming a first angle with a central plane
- the second end section has a second end face forming a second angle with the central plane.
- the first angle is smaller than the second angle.
- a mold having a central area and looping devices are provided. Each of the sheet metal packs is fastened to one of the looping devices and the looping devices are disposed in the central area of the mold. The looping devices are rotated relative to the mold for forming the sheet metal packs into the honeycomb body.
- At least one stack is formed from a plurality of at least partly structured sheet metal layers, which are layered up. Afterwards, each stack is folded over on itself about the bending line to form the sheet metal pack such that the sheet metal pack has a curved first end area and a second end area opposite the first end area. The folding over of the stack on itself to form the sheet metal pack is done such that the second end area is formed by a first end section and a second end section of the stack.
- the first end section has a first end face.
- the second end section has a second end face.
- the first end face and the second end face together form an end face of the second end area of the sheet metal pack.
- the end faces are inclined relatively towards one another.
- the first end face forms a first angle ⁇ with a central plane, which is formed for example by a central sheet metal layer of the sheet metal pack which is folded over on itself.
- the second end face forms a second angle ⁇ with the central plane.
- the angle ⁇ and the angle ⁇ are inclusive angles. The angles are selected such that the first angle ⁇ is smaller than the second angle ⁇ . This is obtained in that during folding the sheet metal layers in the first end section are displaced substantially more greatly relative to one another than the sheet metal layers in the second end section.
- the second end area of the stack of sheet metal is configured asymmetrically.
- Each sheet metal pack is then held by a looping device disposed in the central area of a mold and looped into a honeycomb body by rotation of the looping device relative to the mold.
- the honeycomb body has relatively evenly distributed sheet metal layer end parts, viewed in the direction of the periphery, so considerably more even brazing of the honeycomb body to the casing tube is possible. Because the honeycomb body can be more evenly brazed, a greater degree of operational reliability of the honeycomb body can be obtained.
- the stack is held in at least one area between the second end section and the bending line. This can be done, for example, by clamping the stack by the second end section. The clamping can also be such that it allows a certain displacement of the sheet metal layers.
- the stack is formed in that the sheet metal layers are layered up such that the second end face of the stack of the second end section is substantially perpendicular to the longitudinal direction of the stack.
- three stacks of this type are used for forming a honeycomb body.
- At least one stack is layered up from at least partly structured sheet metal layers, and the sheet metal layers are substantially completely overlapping.
- each of the sheet metal packs is disposed in a mold.
- the curved end area of each of the sheet metal packs is disposed in a central area of the mold.
- Each sheet metal pack is directed radially outwards as is known, for example, from International Patent Disclosure WO 97/00725.
- the sheet metal packs are held by the looping devices.
- the sheet metal packs are disposed in the mold such that when viewed in a peripheral direction, the first end section alternates with the second end section.
- This configuration of the sheet metal packs in the mold has the advantages that bending of each of the sheet metal packs takes place in the same direction. In this way, a more even distribution of the ends of each of the sheet metal layers of the sheet metal pack is also obtained when viewed in the peripheral direction, with each sheet metal pack.
- the direction of rotation of the looping device is selected so that each sheet metal pack is bent around a respective axis of bending which is substantially parallel to the bending line and adjacent to a section of an outer sheet metal layer lying between the second end section and the curved end area.
- the sheet metal pack is proposed for manufacturing the honeycomb body with a large number of fluid permeable channels.
- the sheet metal pack is composed of a plurality of at least partly structured sheet metal layers that are layered up and are folded over on themselves about a common bending line.
- the sheet metal pack has a curved first end area and a second end area opposite the first end area.
- the second end area is formed by a first end section and a second end section.
- the sheet metal pack is distinguished in that the first end section has a first end face and the second end section has a second end face, wherein the first end face encloses the first angle ⁇ with a central plane, and the second end face encloses a second angle ⁇ with the central plane, wherein the first angle ⁇ is smaller than the second angle ⁇ .
- a sheet metal pack thus formed is suitable in particular for manufacturing a honeycomb body.
- the sheet metal pack can be looped according to the implementation of the method known from International Patent Disclosure WO 97/00725 or from International Patent Disclosure WO 97/00135 with other sheet metal packs of suitable configuration to form a honeycomb body, wherein a honeycomb body is obtained which has sheet metal ends which are distributed particularly evenly in the peripheral direction, so that a relatively even brazed connection between the honeycomb body and a jacket tube can be produced.
- the sheet metal pack is configured such that the second angle ⁇ is approximately 90°.
- FIG. 1 is a diagrammatic, perspective view of a stack according to the invention
- FIG. 2 is a perspective view of a sheet metal pack
- FIG. 3 is a plan view of a device with three sheet metal packs to be wound
- FIGS. 4 and 5 are plan views showing momentary states during a looping procedure
- FIG. 6 is a plan view f a completely wound honeycomb body in a mold
- FIG. 7 is an enlarged view of a detail X shown in FIG. 3;
- FIG. 8 is a fragmented, cross-sectional view of the stack according to FIG. 3.
- FIG. 1 there is shown in a perspective representation, a stack 27 .
- the stack 27 includes a large number of at least partly structured sheet metal layers 28 , 29 .
- the stack 27 in the representation according to FIG. 1 is formed from both flat sheet metal layers 28 and corrugated sheet metal layers 29 .
- the flat sheet metal layers 28 and the corrugated sheet metal layers 29 are alternating.
- the flat sheet metal layers 28 and the corrugated sheet metal layers 29 completely overlap in the embodiment shown. They are layered one above another such that they form a prism with a rectangular base.
- a bending line 21 is shown in FIG. 1 by the broken line, about which the stack 27 is folded over on itself.
- the bending line 21 is substantially in the center of the stack 27 .
- a sheet metal pack 1 is manufactured as is shown in FIG. 2 in an exemplary manner.
- the sheet metal pack 1 has a first end area 30 .
- the end area 30 that is adjacent to the bending line 21 is curved.
- the sheet metal pack 1 has a second end area 31 .
- the second end area 31 is opposite the first end area 30 .
- the second end area 31 is formed by a first end section 32 and a second end section 33 of the stack 27 .
- the first end section 32 has a first end face 35 .
- the first end face 35 is inclined towards the opposite first end area 30 .
- the first end face 35 forms a first angle ⁇ with a central plane 34 .
- the second end section 33 has a second end face 36 .
- the second end face 36 forms a second angle ⁇ with the central plane 34 .
- the first angle ⁇ is smaller, in particular substantially smaller, than the second angle ⁇ .
- the second angle ⁇ is approximately 90°.
- FIG. 3 shows a configuration of three sheet metal packs 1 , 2 , 3 in a mold 5 in a plan view.
- Each of the sheet metal packs 1 , 2 , 3 is disposed with its respective curved first end area 30 in a central area 7 of the mold 5 .
- the sheet metal packs 1 , 2 , 3 extend radially outwards from the central area 7 .
- the sheet metal packs 1 , 2 , 3 are disposed such that as seen in a peripheral direction, the first end section 32 alternates with the second end section 33 .
- the mold 5 includes a wall 11 , three rectangular passages 8 , 9 , 10 of which are distributed equidistantly about the periphery in the embodiment shown.
- the mold 5 can be connected by connecting devices which are not shown by an outside flange 13 to a base plate 14 , as is shown in FIG. 8.
- the base plate 14 is provided with a passage aperture 15 , through which a die 16 that is disposed on an actuating rod 17 can be guided.
- the cross-section of the aperture 15 and of the die 16 corresponds to the cross-section of the mold 5 .
- the passages 8 , 9 and 10 have longitudinal surfaces 11 that are preferably configured convexly in cross-section, as shown in FIG. 7.
- the longitudinal surfaces 11 , 12 are provided with a sliding layer 18 , 19 that is a sliding layer of ceramic material.
- the looping device has winding spindles 24 , 25 , 26 which engage with each of the sheet metal packs 1 , 2 and 3 and rotate in the direction of rotation S.
- the winding spindles 24 , 25 , 26 engage with an area of the sheet metal pack 1 , 2 , 3 concerned, which is in the area of the bending line 21 , 22 , 23 .
- the individual sheet metal packs 1 , 2 and 3 are looped in the same direction.
- the sheet metal packs 1 , 2 , and 3 slide along the sliding layers 18 , 19 of each of the passages 8 , 9 , 10 into an interior of the mold 5 .
- the individual sheet metal packs 1 , 2 , 3 are curved about bending axes 37 , 38 , 39 .
- the respective bending axes 37 , 38 , 39 are substantially parallel to the bending line 21 , 22 , 23 and respectively to the winding spindle 24 , 25 , 26 .
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Abstract
Description
- This is a continuation of copending International Application PCT/EP99/03710, filed May 28, 1999, which designated the United States.
- Field of the Invention
- The subject-matter of the invention relates to a method and to a sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels.
- Metallic honeycomb bodies are known which are used as catalytic converter supporting bodies. Such a honeycomb body is composed of a large number of at least partly structured sheet metal layers. Numerous examples of the configuration of a honeycomb body are known from, for example, U.S. Pat. No. 4,923,109, International Patent Disclosure WO 90/03220, Published, European Patent Application EP 0 322 566 A1 and International Patent Disclosure WO 94/01661.
- International Patent Disclosure WO 97/00725 deals with the manufacturing of a honeycomb body with a large number of fluid permeable channels made from a large number of at least partly structured layers. This reference proposes that at least one stack of a plurality of at least partly structured sheet metal layers is layered up. Each stack is folded over on itself about a bending line in order to construct a sheet metal pack. Each sheet metal pack is disposed in a mold that has a contour corresponding to the external shape of the honeycomb body to be manufactured. Each stack is held by a looping device disposed in a central area of the mold. All the stacks are subsequently looped into a honeycomb body by rotation of the looping device relative to the mold. The honeycomb body prepared in this manner is subsequently fitted into a casing tube. A further method for manufacturing a honeycomb body is known from International Patent Disclosure WO 97/00135.
- In further manufacturing steps, the honeycomb body is brazed to the casing tube. With this, it is substantially the end areas of the individual sheet metal layers that are brazed to the casing tube. With honeycomb bodies manufactured in this way, there is the danger that by folding each stack over on itself and looping the stack into a honeycomb body, in the area where the individual sheet metal layers join the casing tube, some sheet metal layers are brazed to the casing tube pipe over a relatively large part of the periphery of the casing surface of the casing tube, while other sheet metal layers are only brazed to the casing tube over a relatively small section of the periphery. This type of joining of the honeycomb body to the casing tube carries the danger that the honeycomb body will be damaged because of its mechanical and thermal stressing. In particular, there is the danger that the brazed connection between individual sheet metal layers will be at least partially destroyed.
- It is accordingly an object of the invention to provide a method and a sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels which overcome the above-mentioned disadvantages of the prior art methods and devices of this general type, which makes more even forming of a brazed connection to the jacket pipe possible.
- With the foregoing and other objects in view there is provided, in accordance with the invention, a method for manufacturing a honeycomb body with a large number of fluid permeable channels. The method includes the step of forming a plurality of stacks by layering up a plurality of sheet metal layers for each of the stacks, some of the sheet metal layers are at least partly structured sheet metal layers. Each of the stacks are folded about a bending line resulting in a plurality of sheet metal packs being formed such that each of the sheet metal packs has a curved first end area and a second end area opposite the first end area. The second end area has a first end section and a second end section. The first end section has a first end face forming a first angle with a central plane, the second end section has a second end face forming a second angle with the central plane. The first angle is smaller than the second angle. A mold having a central area and looping devices are provided. Each of the sheet metal packs is fastened to one of the looping devices and the looping devices are disposed in the central area of the mold. The looping devices are rotated relative to the mold for forming the sheet metal packs into the honeycomb body.
- In accordance with the method according to the invention for manufacturing the honeycomb body with a large number of fluid permeable channels, it is proposed that at least one stack is formed from a plurality of at least partly structured sheet metal layers, which are layered up. Afterwards, each stack is folded over on itself about the bending line to form the sheet metal pack such that the sheet metal pack has a curved first end area and a second end area opposite the first end area. The folding over of the stack on itself to form the sheet metal pack is done such that the second end area is formed by a first end section and a second end section of the stack. The first end section has a first end face. The second end section has a second end face. The first end face and the second end face together form an end face of the second end area of the sheet metal pack. The end faces are inclined relatively towards one another. The first end face forms a first angle α with a central plane, which is formed for example by a central sheet metal layer of the sheet metal pack which is folded over on itself. The second end face forms a second angle β with the central plane. The angle β and the angle α are inclusive angles. The angles are selected such that the first angle α is smaller than the second angle β. This is obtained in that during folding the sheet metal layers in the first end section are displaced substantially more greatly relative to one another than the sheet metal layers in the second end section. In principle, the second end area of the stack of sheet metal is configured asymmetrically.
- Each sheet metal pack is then held by a looping device disposed in the central area of a mold and looped into a honeycomb body by rotation of the looping device relative to the mold.
- Unexpectedly, it has been shown that by the implementation of the method according to the invention when forming the honeycomb body, the honeycomb body has relatively evenly distributed sheet metal layer end parts, viewed in the direction of the periphery, so considerably more even brazing of the honeycomb body to the casing tube is possible. Because the honeycomb body can be more evenly brazed, a greater degree of operational reliability of the honeycomb body can be obtained.
- According to an advantageous further development of the method, it is proposed that during the folding of the stack a considerably greater relative displacement of the sheet metal layers is permitted in the first end section than in the second end section. It is proposed in particular that during the folding, the sheet metal layers of the stack of the second end section are substantially stationary. In this way, the second end section of the sheet metal pack substantially retains the original shape of the end section as the stack. Different sheet metal stacks can also be provided with differently configured end sections, according to the number of stacks of sheet metal which are used for forming a honeycomb body, and according to the shape of the honeycomb body to be provided. By a combination of different sheet metal packs and by appropriate formation of the second end sections during the folding of the stack, the operational reliability of a honeycomb body can be increased.
- To simplify the manufacturing of the honeycomb body, it is also proposed that at least during the folding, the stack is held in at least one area between the second end section and the bending line. This can be done, for example, by clamping the stack by the second end section. The clamping can also be such that it allows a certain displacement of the sheet metal layers.
- Preferably, the stack is formed in that the sheet metal layers are layered up such that the second end face of the stack of the second end section is substantially perpendicular to the longitudinal direction of the stack. In particular, three stacks of this type are used for forming a honeycomb body.
- According to a further preferred configuration it is proposed that at least one stack is layered up from at least partly structured sheet metal layers, and the sheet metal layers are substantially completely overlapping.
- According to a further advantageous implementation of the method it is proposed that at least two sheet metal packs are disposed in a mold. The curved end area of each of the sheet metal packs is disposed in a central area of the mold. Each sheet metal pack is directed radially outwards as is known, for example, from International Patent Disclosure WO 97/00725. The sheet metal packs are held by the looping devices. The sheet metal packs are disposed in the mold such that when viewed in a peripheral direction, the first end section alternates with the second end section. This configuration of the sheet metal packs in the mold has the advantages that bending of each of the sheet metal packs takes place in the same direction. In this way, a more even distribution of the ends of each of the sheet metal layers of the sheet metal pack is also obtained when viewed in the peripheral direction, with each sheet metal pack.
- According to yet another advantageous implementation of the method, it is proposed that the direction of rotation of the looping device is selected so that each sheet metal pack is bent around a respective axis of bending which is substantially parallel to the bending line and adjacent to a section of an outer sheet metal layer lying between the second end section and the curved end area.
- According to a further inventive concept, the sheet metal pack is proposed for manufacturing the honeycomb body with a large number of fluid permeable channels. The sheet metal pack is composed of a plurality of at least partly structured sheet metal layers that are layered up and are folded over on themselves about a common bending line. The sheet metal pack has a curved first end area and a second end area opposite the first end area. The second end area is formed by a first end section and a second end section. The sheet metal pack is distinguished in that the first end section has a first end face and the second end section has a second end face, wherein the first end face encloses the first angle α with a central plane, and the second end face encloses a second angle β with the central plane, wherein the first angle α is smaller than the second angle β. A sheet metal pack thus formed is suitable in particular for manufacturing a honeycomb body. The sheet metal pack can be looped according to the implementation of the method known from International Patent Disclosure WO 97/00725 or from International Patent Disclosure WO 97/00135 with other sheet metal packs of suitable configuration to form a honeycomb body, wherein a honeycomb body is obtained which has sheet metal ends which are distributed particularly evenly in the peripheral direction, so that a relatively even brazed connection between the honeycomb body and a jacket tube can be produced. Preferably, the sheet metal pack is configured such that the second angle β is approximately 90°.
- Other features which are considered as characteristic for the invention are set forth in the appended claims.
- Although the invention is illustrated and described herein as embodied in a method and a sheet metal pack for manufacturing a honeycomb body with a large number of fluid permeable channels, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
- The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
- FIG. 1 is a diagrammatic, perspective view of a stack according to the invention;
- FIG. 2 is a perspective view of a sheet metal pack;
- FIG. 3 is a plan view of a device with three sheet metal packs to be wound;
- FIGS. 4 and 5 are plan views showing momentary states during a looping procedure;
- FIG. 6 is a plan view f a completely wound honeycomb body in a mold;
- FIG. 7 is an enlarged view of a detail X shown in FIG. 3; and
- FIG. 8 is a fragmented, cross-sectional view of the stack according to FIG. 3.
- In all the figures of the drawing, sub-features and integral parts that correspond to one another bear the same reference symbol in each case. Referring now to the figures of the drawing in detail and first, particularly, to FIG. 1 thereof, there is shown in a perspective representation, a
stack 27. Thestack 27 includes a large number of at least partly structured sheet metal layers 28, 29. Thestack 27 in the representation according to FIG. 1 is formed from both flat sheet metal layers 28 and corrugated sheet metal layers 29. The flat sheet metal layers 28 and the corrugated sheet metal layers 29 are alternating. The flat sheet metal layers 28 and the corrugated sheet metal layers 29 completely overlap in the embodiment shown. They are layered one above another such that they form a prism with a rectangular base. A bendingline 21 is shown in FIG. 1 by the broken line, about which thestack 27 is folded over on itself. The bendingline 21 is substantially in the center of thestack 27. - By folding the
stack 27 over on itself and about thebending line 21, a sheet metal pack 1 is manufactured as is shown in FIG. 2 in an exemplary manner. The sheet metal pack 1 has afirst end area 30. Theend area 30 that is adjacent to thebending line 21 is curved. The sheet metal pack 1 has asecond end area 31. Thesecond end area 31 is opposite thefirst end area 30. Thesecond end area 31 is formed by afirst end section 32 and asecond end section 33 of thestack 27. - The
first end section 32 has afirst end face 35. Thefirst end face 35 is inclined towards the oppositefirst end area 30. Thefirst end face 35 forms a first angle α with acentral plane 34. Thesecond end section 33 has asecond end face 36. Thesecond end face 36 forms a second angle β with thecentral plane 34. As is visible from FIG. 2, the first angle α is smaller, in particular substantially smaller, than the second angle β. In the embodiment shown, the second angle β is approximately 90°. - FIG. 3 shows a configuration of three sheet metal packs1, 2, 3 in a
mold 5 in a plan view. Each of the sheet metal packs 1, 2, 3 is disposed with its respective curvedfirst end area 30 in acentral area 7 of themold 5. The sheet metal packs 1, 2, 3 extend radially outwards from thecentral area 7. The sheet metal packs 1, 2, 3 are disposed such that as seen in a peripheral direction, thefirst end section 32 alternates with thesecond end section 33. - The
mold 5 includes awall 11, threerectangular passages mold 5 can be connected by connecting devices which are not shown by anoutside flange 13 to abase plate 14, as is shown in FIG. 8. Thebase plate 14 is provided with a passage aperture 15, through which adie 16 that is disposed on an actuating rod 17 can be guided. The cross-section of the aperture 15 and of the die 16 corresponds to the cross-section of themold 5. Thepassages longitudinal surfaces 11 that are preferably configured convexly in cross-section, as shown in FIG. 7. Preferably, thelongitudinal surfaces layer - For better clarity, only parts of a looping device which can twist the sheet metal packs1, 2, 3 about an axis 4 perpendicular to the plane of the drawing, are shown. The looping device has winding
spindles spindles sheet metal pack 1, 2, 3 concerned, which is in the area of thebending line - By twisting the winding
spindles layers passages mold 5. The individual sheet metal packs 1, 2, 3 are curved about bendingaxes bending line spindle section 40 of an outsidesheet metal layer 44 of each of the sheet metal packs 1, 2, 3 lying between thesecond end section 33 and thecurved end area 30. During the looping procedure, displacement of the bending axes 37, 38, 39 takes place. The position of the bending axes 37, 38, 39 is dependent upon the looped periphery of the sheet metal packs 1, 2, 3. - During the looping procedure a displacement of the sheet metal layers28, 29 also takes place so that the
second end area 31 substantially matches the internal shape of themold 5. The displacement of the individual sheet metal layers 28, 29 is therefore such that an even distribution of the ends of the respective sheet metal layers 28, 29 occurs on the periphery of thehoneycomb body 6. - The presently described device, by which the method for manufacturing a honeycomb body with a large number of fluid permeable channels is explained, represent a preferred embodiment. Alternatively, the method can also be carried out by the device described in International Patent Disclosure WO 97/00135 and the method described therein. The content of the International Patent Disclosure WO 97/00135 and of Non-Published, German Patent Application DE 195 21 685.7 are incorporated by reference herein in their entirety.
Claims (10)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19825018 | 1998-06-04 | ||
DE19825018.5 | 1998-06-04 | ||
DE19825018A DE19825018A1 (en) | 1998-06-04 | 1998-06-04 | Method and laminated core for producing a honeycomb body with a plurality of channels that are permeable to a fluid |
PCT/EP1999/003710 WO1999062635A1 (en) | 1998-06-04 | 1999-05-28 | Method and sheet metal pile for producing a honeycomb body with a plurality of channels through which a fluid is able to flow |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/003710 Continuation WO1999062635A1 (en) | 1998-06-04 | 1999-05-28 | Method and sheet metal pile for producing a honeycomb body with a plurality of channels through which a fluid is able to flow |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010015087A1 true US20010015087A1 (en) | 2001-08-23 |
US6449843B2 US6449843B2 (en) | 2002-09-17 |
Family
ID=7869922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/729,063 Expired - Fee Related US6449843B2 (en) | 1998-06-04 | 2000-12-04 | Method for manufacturing a honeycomb body with a large number of fluid permeable channels |
Country Status (13)
Country | Link |
---|---|
US (1) | US6449843B2 (en) |
EP (1) | EP1091805B1 (en) |
JP (1) | JP4384812B2 (en) |
KR (1) | KR100572903B1 (en) |
CN (1) | CN1116114C (en) |
AU (1) | AU4266899A (en) |
DE (2) | DE19825018A1 (en) |
ES (1) | ES2181487T3 (en) |
ID (1) | ID28722A (en) |
MY (1) | MY118954A (en) |
PL (1) | PL195286B1 (en) |
RU (1) | RU2215164C2 (en) |
WO (1) | WO1999062635A1 (en) |
Cited By (3)
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---|---|---|---|---|
WO2005001251A1 (en) * | 2003-06-27 | 2005-01-06 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Design of a metal honeycomb structure and method for producing the same |
US20060061027A1 (en) * | 2004-08-19 | 2006-03-23 | Supracor, Inc. | Honeycomb shock absorber |
GB2427578A (en) * | 2005-06-24 | 2007-01-03 | Reef Resources Ltd | Handling for foraminous sheets in industrial catalysts |
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DE10000108A1 (en) * | 2000-01-04 | 2001-07-05 | Emitec Emissionstechnologie | Process for the production of a honeycomb body using sheet metal foils already coated with wash coat |
DE10226282A1 (en) * | 2002-06-13 | 2003-12-24 | Emitec Emissionstechnologie | Non-cylindrical catalyst carrier body and tool and method for its production |
US20050054526A1 (en) * | 2003-09-08 | 2005-03-10 | Engelhard Corporation | Coated substrate and process of preparation thereof |
DE102005038572A1 (en) * | 2005-08-12 | 2007-02-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Apparatus and method for producing metallic honeycomb bodies having at least one mold segment |
CN102728677B (en) * | 2012-06-19 | 2016-04-13 | 台州欧信环保净化器有限公司 | A kind of producing device of S type metal beehive carrier |
CN106392482A (en) * | 2016-10-28 | 2017-02-15 | 北京航星机器制造有限公司 | Method for manufacturing simple tool |
CN112477355B (en) * | 2020-11-03 | 2022-08-02 | 昌河飞机工业(集团)有限责任公司 | Sheet lamination group integral processing forming method |
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ES2010201B3 (en) | 1986-05-12 | 1989-11-01 | Interatom Ges Mit Beschrankter Haftung | ALVEOLATED BODY, ESPECIALLY CATALYST CARRYING BODY, WITH INTERLOCKED METAL SHEET LAYERS IN OPPOSITE SENSES AND PROCEDURE FOR ITS MANUFACTURE. |
DE3743723C1 (en) | 1987-12-23 | 1989-04-20 | Sueddeutsche Kuehler Behr | Method and device for producing a support body for a catalytic reactor |
DE3809105A1 (en) * | 1988-03-18 | 1989-09-28 | Eberspaecher J | DEVICE FOR CATALYTICALLY PURIFYING THE EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE AND METHOD FOR THE PRODUCTION THEREOF |
DE4016276C1 (en) * | 1990-05-21 | 1991-06-20 | Behr Gmbh & Co | |
US5620666A (en) * | 1994-07-11 | 1997-04-15 | Usui Kokusai Sangyo Kabushiki Kaisha, Ltd. | Exhaust gas cleaning metallic substrate |
DE19521685C2 (en) | 1995-06-14 | 1998-04-16 | Emitec Emissionstechnologie | Method and device for manufacturing a honeycomb body |
US6049961A (en) * | 1995-06-14 | 2000-04-18 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Process for producing a honeycomb body, especially a catalyst carrier body |
DE19522327A1 (en) * | 1995-06-20 | 1997-01-02 | Emitec Emissionstechnologie | Device and method for producing a honeycomb body from intertwined sheet metal layers |
US6029488A (en) * | 1995-06-20 | 2000-02-29 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Apparatus and process for producing a honeycomb body from intertwined sheet metal layers |
US6049980A (en) * | 1996-06-18 | 2000-04-18 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Apparatus and method for producing a honeycomb body |
DE19528963A1 (en) * | 1995-08-07 | 1997-02-13 | Emitec Emissionstechnologie | Device and method for producing a honeycomb body |
DE19704521A1 (en) * | 1997-02-06 | 1998-08-13 | Emitec Emissionstechnologie | Method and device for producing a honeycomb body |
DE19823469A1 (en) * | 1998-05-26 | 1999-12-02 | Emitec Emissionstechnologie | Monolithic metallic honeycomb body with varying number of channels |
US6317976B1 (en) * | 1998-12-28 | 2001-11-20 | Corning Incorporated | Method of making a catalytic converter for use in an internal combustion engine |
-
1998
- 1998-06-04 DE DE19825018A patent/DE19825018A1/en not_active Withdrawn
-
1999
- 1999-05-28 AU AU42668/99A patent/AU4266899A/en not_active Abandoned
- 1999-05-28 ES ES99955234T patent/ES2181487T3/en not_active Expired - Lifetime
- 1999-05-28 KR KR1020007013721A patent/KR100572903B1/en not_active IP Right Cessation
- 1999-05-28 WO PCT/EP1999/003710 patent/WO1999062635A1/en active IP Right Grant
- 1999-05-28 EP EP99955234A patent/EP1091805B1/en not_active Expired - Lifetime
- 1999-05-28 JP JP2000551884A patent/JP4384812B2/en not_active Expired - Fee Related
- 1999-05-28 PL PL99344367A patent/PL195286B1/en not_active IP Right Cessation
- 1999-05-28 ID IDW20010011A patent/ID28722A/en unknown
- 1999-05-28 RU RU2001101146/06A patent/RU2215164C2/en not_active IP Right Cessation
- 1999-05-28 DE DE59902208T patent/DE59902208D1/en not_active Expired - Lifetime
- 1999-05-28 CN CN99806958A patent/CN1116114C/en not_active Expired - Fee Related
- 1999-06-03 MY MYPI99002249A patent/MY118954A/en unknown
-
2000
- 2000-12-04 US US09/729,063 patent/US6449843B2/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005001251A1 (en) * | 2003-06-27 | 2005-01-06 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Design of a metal honeycomb structure and method for producing the same |
US20060096093A1 (en) * | 2003-06-27 | 2006-05-11 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Metallic honeycomb structure and process for producing the same |
US20070026252A1 (en) * | 2003-06-27 | 2007-02-01 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Metallic honeycomb structure |
US7197822B2 (en) | 2003-06-27 | 2007-04-03 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Metallic honeycomb structure and process for producing the same |
CN100392214C (en) * | 2003-06-27 | 2008-06-04 | 排放技术有限公司 | Metallic honeycomb structure and process for producing the same |
US20060061027A1 (en) * | 2004-08-19 | 2006-03-23 | Supracor, Inc. | Honeycomb shock absorber |
US7527849B2 (en) * | 2004-08-19 | 2009-05-05 | Supracor, Inc. | Honeycomb shock absorber |
GB2427578A (en) * | 2005-06-24 | 2007-01-03 | Reef Resources Ltd | Handling for foraminous sheets in industrial catalysts |
GB2427578B (en) * | 2005-06-24 | 2007-09-12 | Reef Resources Ltd | Handling foraminous sheets in industrial catalysis |
Also Published As
Publication number | Publication date |
---|---|
DE59902208D1 (en) | 2002-09-05 |
CN1116114C (en) | 2003-07-30 |
RU2215164C2 (en) | 2003-10-27 |
DE19825018A1 (en) | 1999-12-09 |
JP4384812B2 (en) | 2009-12-16 |
PL195286B1 (en) | 2007-08-31 |
KR20010052562A (en) | 2001-06-25 |
PL344367A1 (en) | 2001-11-05 |
MY118954A (en) | 2005-02-28 |
EP1091805B1 (en) | 2002-07-31 |
KR100572903B1 (en) | 2006-04-24 |
ES2181487T3 (en) | 2003-02-16 |
EP1091805A1 (en) | 2001-04-18 |
ID28722A (en) | 2001-06-28 |
WO1999062635A1 (en) | 1999-12-09 |
JP2002516758A (en) | 2002-06-11 |
CN1304335A (en) | 2001-07-18 |
US6449843B2 (en) | 2002-09-17 |
AU4266899A (en) | 1999-12-20 |
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