EP0945195B1 - Rouleau à moulage pour pièces métalliques minces utilisées comme support de catalysateur - Google Patents

Rouleau à moulage pour pièces métalliques minces utilisées comme support de catalysateur Download PDF

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Publication number
EP0945195B1
EP0945195B1 EP19990302246 EP99302246A EP0945195B1 EP 0945195 B1 EP0945195 B1 EP 0945195B1 EP 19990302246 EP19990302246 EP 19990302246 EP 99302246 A EP99302246 A EP 99302246A EP 0945195 B1 EP0945195 B1 EP 0945195B1
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EP
European Patent Office
Prior art keywords
portions
roll
ridge
root
blades
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.)
Expired - Lifetime
Application number
EP19990302246
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German (de)
English (en)
Other versions
EP0945195A3 (fr
EP0945195A2 (fr
Inventor
Haruo c/o Calsonic Corporation Kumazawa
Masamitsu c/o Calsonic Corporation Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Calsonic Kansei Corp
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Filing date
Publication date
Priority claimed from JP10074599A external-priority patent/JPH11267767A/ja
Priority claimed from JP10074598A external-priority patent/JPH11267766A/ja
Application filed by Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Publication of EP0945195A2 publication Critical patent/EP0945195A2/fr
Publication of EP0945195A3 publication Critical patent/EP0945195A3/fr
Application granted granted Critical
Publication of EP0945195B1 publication Critical patent/EP0945195B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • 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
    • 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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • 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
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)

Definitions

  • the present invention relates to a molding roll for molding a metal thin plate as a catalyst carrier employed in a metallic catalyst converter.
  • the former metallic catalyst converter in which the corrugated metal thin plates and the flat metal thin plates are laminated alternately is disadvantageous in cost since two types of metal thin plates are needed. This increases the forming step of the honeycomb carrier as well as the forming step and the managing step of the metal thin plates.
  • US-A-4 297 866 discloses a molding roll for molding metal strip to produce slit segments of meshes.
  • the molded metal strip comprises a series of first elongate regions that comprise first convex portions separated by first planar portions and second elongate regions that comprise second concave portions separated by second planar portions.
  • the convex portions and concave portions being side-by-side such that the planar portions define planar strips extending perpendicular to the lengthways direction of the first and second elongate regions.
  • the molding roll of US-A-4 297 866 comprises a series of axially aligned plate-like blades having a circumferentially extending forming surface comprising alternating relatively flat equi-spaced portions for producing the first and second planar portions and convex portions for producing the first convex portions and second concave portions.
  • the first convex portions and second concave portions have the same length and the series of blades are set at the same angle with respect to one another.
  • the invention provides a molding roll for molding a thin metal plate employed as a catalyst carrier, the thin metal plate including first elongate regions having first convex portions and first concave portions and second elongate regions having second concave portions and second convex portions, the first elongate regions and the second elongate regions being disposed alternately in a direction perpendicular to the length thereof, the first convex portions and first concave portions being arranged alternately along the length of the first elongate regions with cuts being provided between adjacent first convex portions and first concave portions and the second concave portions and the second convex portions being arranged alternately along the length of the second elongate regions with cuts being provided between adjacent second concave portions and second convex portions, the molding roll comprising:
  • the forming regions of each blade comprise the same pattern which is defined by the roll ridge portions and the roll root portions.
  • the roll ridge portions and the roll root portions of each first row are positioned irregularly with respect to the roll ridge portions and roll root portions of other first rows and the roll ridge portions and roll root portions of each second row are positioned irregularly with respect to the roll ridge portions and roll root portions of the other second rows.
  • the molding roll further comprises:
  • the molding roll further comprises a stopper plate placed between one of the first flange and the second flange and the blade that is positioned adjacent the one of the first flange and the second flange, the stopper plate being arranged to engage with a partner roll of the molding roll to suppress axial displacement of the molding roll with respect to the partner roll.
  • FIGS. 9, 10 show a metallic catalyst carrier 1 including a metallic catalyst carrier 3 which employs metal thin plate 5 molded by a molding roll.
  • the metallic catalyst carrier 3 is arranged in a metal outer cylinder 2 which is formed to have an elliptic sectional shape (including an ellipse).
  • Diffusers 4 provided at each end of the outer cylinder 2 are separately formed.
  • the diffusers 4 are fitted into both ends of the outer cylinder 2 and then fixed thereto.
  • the metallic catalyst carrier 3 is formed by coating a binder, which is formed of alumina called a "wash coat", on a honeycomb carrier 3a as a base body, and then applying catalysts such as Pt, etc. on a surface of the binder.
  • the honeycomb carrier 3a is constructed by folding the metal thin plate 5, which is formed of stainless steel, etc. and is corrugated, successively like the S-shape along the corrugation direction and then laminating them like a honeycomb to thus form cells at respective laminated portions.
  • the honeycomb carrier 3a may be constructed by laminating plural sheets of the metal thin plates 5 being cut up into desired lengths, otherwise the honeycomb carrier 3a may be constructed by winding the metal thin plate 5 to be laminated.
  • FIGS.5, 6 A standard corrugation pattern of the metal thin plate 5 which is corrugated is shown in FIGS.5, 6.
  • the metal thin plate 5 will be explained with reference to a basic profile of a corrugated metal thin plate 5' of this type shown in FIG.7.
  • the corrugated metal thin plate 5' of this type shown in FIG.7 has ridge portions 5'a and root portions 5'b acting as standard corrugations.
  • the ridge portions 5'a and the root portions 5'b of this corrugated metal thin plate 5' are aligned alternately in sequence in the corrugation direction x (referred to as an "x direction” hereinafter).
  • Flat rack portions 5'f are then provided successively at respective center positions of slant walls 5'c, which define the ridge portions 5'a and the root portions 5'b.
  • the flat rack portions 5'f extend in the corrugation folded direction y (referred to as a "y direction” hereinafter).
  • ridge portions 5'a as their stop ends, a plurality of ridge portion depressions 5'd which project in the opposite direction are provided along the ridge portions 5a' of the corrugation at a constant distance along the y direction.
  • a plurality of root portion ridges 5'e which project in the opposite direction are provided along the root portions 5'b of the corrugation at a constant distance along the y direction.
  • the ridge portions 5'a and the root portions 5'b are aligned via the rack portions 5'f alternately in sequence along the x direction, and a plurality of the ridge portion depression 5'd are provided to the ridge portions 5'a at a constant distance regularly along the y direction and also a plurality of root portion ridges 5'e are provided to the root portions 5'b at a constant distance regularly along the y direction.
  • the corrugated metal thin plate 5' shown in FIG.7 constitutes a uniform corrugation pattern in total as described above, whereas the metal thin plate 5 has a certain regularity but constitutes a nonuniform corrugation pattern in total.
  • the metal thin plate 5 shown in FIGS.5, 6 has the ridge portions 5a and the root portions 5b of the corrugation as basic profiles, like the metal thin plate 5' shown in FIG.7.
  • a plurality of ridge portion depressions 5d which project from the center position of the slant walls 5c constituting the ridge portions 5a and the root portions 5b in the opposite direction to the ridge portions 5a, are provided to the corrugated ridge portions 5a at a constant distance along the y direction, using the rack portions 5f being provided at the above center positions as the side ends.
  • a plurality of root portion ridges 5e which project in the opposite direction to the root portions 5b, are provided to the corrugated root portions 5b at a constant distance along the y direction.
  • the metal thin plate 5 is formed by using a molding roll 10 shown in FIGS. 1 to 4.
  • FIG.1 is a perspective view showing a molding roll 10 according to an embodiment of the invention.
  • FIG.2 is an exploded view showing the molding roll 10.
  • FIG.3 is a side view showing a blade 11 of a plurality of blades used to form the molding roll 10.
  • FIG.4 is a fragmentary enlarged view showing the blade 11 in FIG.3.
  • the molding roll 10 is constructed by laminating a plurality of sheets of blades 11 which are formed under the same standard and have roll ridge portions 10a, 10e (see FIG.4) and roll root portions 10b, 10d (see FIG.4) formed on their peripheral surfaces.
  • These roll ridge portions 10a, 10e correspond to the ridge portions 5a and the root portion ridges 5e of the corrugation of the metal thin plate 5.
  • the roll root portions 10b, 10d correspond to the root portions 5b and the ridge portion depressions 5d of the metal thin plate 5.
  • the roll ridge portions 10a, 10e and the roll root portions 10b, 10d of the blade 11 are formed to have a predetermined assignment angles ⁇ with respect to a blade center point O in this embodiment, respective contiguous numbers of the roll ridge portions 10a, 10e and the roll root portions 10b, 10d, which are adjacent along the peripheral direction of the blade 11, are set to not more than two.
  • Almost flat rack portions 1 0f which partition the roll ridge portion 10a and the roll root portion 10b, or the roll ridge portion 10a and the roll ridge portion 10e, or the roll root portion 10b and the roll root portion 10d, both being adjacent along the peripheral direction, are formed on a pitch circle PC which partitions the roll ridge portions 10a and the roll root portions 10b of the blade 11.
  • the roll ridge portion 10a and the roll ridge portion 10e which respectively correspond to a convex portion being assumed as the ridge portion 5a of the metal thin plate 5 and a convex portion being assumed as the root portion ridge 5e respectively are formed as convex portions on the pitch circle PC, while the roll root portion 10b and the roll root portion 10d respectively correspond to a concave portion being assumed as the root portion 5b of the metal thin plate 5 and a concave portion being assumed as the ridge portion 5d are formed as concave portions on the pitch circle PC.
  • Plural sheets of blades 11 are inserted onto a cylindrical axis portion 13 of a holder 12, on one end of which a flange 14 is formed as shown in FIG.2, and laminated, as will be described later.
  • a flange 15 is then inserted onto the other end of the cylindrical axis portion 13 to put the blades 11 between the flanges 14, 15.
  • the blades 11 are then positioned by press-fitting a plurality of locating pins 16 through the flanges 14, 15 and the plural sheets of blades 11.
  • the blades 11 are then compressed and fixed by fastening members which consist of bolts 17 that pass through the flanges 14, 15 and the blades 11 and engage internal threads 18 being provided in the flange 14.
  • a plurality of pin insertion holes 20 and a plurality of bolt insertion holes 21 as well as a center hole 19 into which the axis portion 13 of the holder 12 is inserted are formed symmetrically around the blade center point O.
  • Some of the blades 11 are shifted by an integral multiple of a formation distance (pitch angle) ⁇ between the roll ridge portions 10a, 10e and the roll root portions 10b, 10d on the peripheral surface, and then laminated.
  • the blades 11 have the pin insertion holes 20 and the bolt insertion holes 21 respectively and are positioned and fixed by fitting the locate pins 16 and the bolts 17 into the pin insertion holes 20 and the bolt insertion holes 21 respectively. Therefore, if a reference position is set on a reference line L connecting the pin insertion holes 20, 20, for example, the molding roll 10 according to the present embodiment can be formed by laminating plural types, e.g., ten types corresponding to A to J (see FIG.5), of blades 11 in combination. Such plural types of blades 11 are prepared by shifting the period (45° assignment) of the continuously formed patterns of the roll ridge portions 10a, 10e and the roll root portions 10b, 10d on the peripheral surface from the reference line L by ⁇ degree in phase angle.
  • plural types of blades 11 are prepared by shifting the period (45° assignment) of the continuously formed patterns of the roll ridge portions 10a, 10e and the roll root portions 10b, 10d on the peripheral surface from the reference line L by ⁇ degree in phase angle.
  • the roll ridge portions 10e constituting the root portion ridges 5e and the roll root portions 10d constituting the ridge portion depressions 5d are formed respectively to have different forming distances and forming lengths in the axis direction of the molding roll 10 under the condition that respective blades 11 are laminated.
  • the laminated states A to J of the blades 11 are shown together with the corrugation pattern of the metal thin plate 5 in FIG.5.
  • character numbers A to J represent the number of laminated sheets of a group of blades which are formed by laminating plural sheets of blades 11 having the same profile.
  • a blade group B is formed by laminating five sheets of blades having the same profile.
  • spacers 22 which can set a clearance S (as shown in Fig.1) being needed to form the ridge portion depressions 5d and the root portion ridges 5e of the metal thin plate 5 are interposed between the blade groups A to J which have different phase angles respectively.
  • a distance of this clearance S is decided such that an optimal shearing force is applied between the blades 11.
  • such distance is set below the plate thickness of the metal thin plate that is to be molded.
  • spacers 23 for example, spacers 23 (as shown in Fig.2) for setting a clearance Sa (as shown in Fig.1) to insert guide pieces (not shown) are interposed between respective laminated blades 11, 11 in blade groups B, H at plural locations of the blade groups.
  • guide pieces can separate the formed metal thin plate 5 from surfaces of the molding roll 10.
  • spacers 22 for setting a clearance S necessary for forming the portions 5d, 5e are interposed between the blade groups, e.g., between the blade group B and the blade group A, whereas spacers 23 for setting the clearance Sa to separate the formed metal thin plate 5 are interposed at desired locations between the blade groups, e.g., between the blades 11,11 of the blade group B.
  • the metal thin plate 5 can be formed by enraging a pair of molding rolls 10, 10, in which positions of the roll ridge portions 10a, 10e and the roll root portions 10b, 10d are set oppositely, with each other. In this case, mutual slight displacement of these molding rolls 10, 10 in the axis direction has a great influence on the formation of the ridge portion depressions 5d and the root portion ridges 5e of the metal thin plate 5.
  • a stopper plate 24 which can engage with the pair of molding rolls 10, 10 mutually to prevent axial displacement of the molding rolls 10, 10 is interposed between any one of the flanges 14, 15 of the molding roll 10, e.g., the flange 14 and the blade 11 being positioned adjacent to the flange 14.
  • the molding roll 10 can be constructed by laminating plural sheets of same blades 11, in which the roll ridge portions 10a, 10e and the roll root portions 10b, 10d are formed by the predetermined assignment angle ⁇ to mate with the corrugation pattern of the corrugated metal thin plate 5 to be formed as shown in Fig.4, into the A to J blade groups while shifting the assignment angle ⁇ as the pitch. Therefore, the desired corrugated metal thin plate 5, which has a plurality of depressions 5d formed along the corrugated ridge portions 5a and ridges 5e formed along the corrugated root portions 5b, can be formed easily.
  • the predetermined clearance S is set by interposing the spacers 22 between the A to J blades groups having different phase angles, and also a pair of molding rolls 10, 10 have respective stopper plates 24 which engage with each other to prevent mutual axial displacement of the molding rolls 10,10. Therefore, mutual slight displacement of the molding rolls 10,10 along the axial direction can be eliminated completely, and thus the root portion ridges 5e and the ridge portion depression 5d can be formed properly with good precision.
  • the rack portions 10f which partition the roll ridge portions 10a, 10e and the roll root portions 10b, 10d being adjacent in the peripheral direction respectively are formed on the pitch circle PC on the peripheral surface, and also respective contiguous numbers of the roll ridge portions 10a, 10e and the roll root portions 10b, 10d are set to not more than two, and in addition combination of the A to J blade groups are arranged in lamination such that the roll ridge portions 10a, 10e and the roll root portions 10b, 10d have different forming distances and different forming lengths along the axial direction of the molding roll 10 respectively.
  • the ideal corrugated metal thin plate 5 can be achieved wherein the flat rack portions 5f can be formed at the center positions of the slant walls 5c, which constitute the ridge portions 5a and the root portions 5b of the corrugation, along the y direction in the corrugated metal thin plate 5 formed by the molding roll 10, and also the ridge portion depressions 5d and the root portion ridges 5e can be formed on both sides of these rack portions 5f in the y direction to have different forming distances and different forming lengths respectively, and also the contiguous number of the ridge portions 5a and root portion ridges 5e of the corrugation and the contiguous number of the root portions 5b and the ridge portion depressions 5d of the corrugation, both being continuously adjacent in the x direction, can be set to not more than two respectively.
  • the honeycomb carrier 3a is constructed by using the metal thin plate 5 in which the contiguous numbers of all the ridge portions and the root portions are not more than two in this manner, it is of course that mutual fitting/sticking of the metal thin plates 5, 5 can be avoided because of the presence of a plurality of ridge portion depressions 5d and root portion ridges 5e both having different forming distances and different forming lengths even when the metal thin plates 5, 5 are displaced mutually along the y direction when superposed, and that mutual fitting/sticking of the metal thin plates 5, 5 can be avoided to thus keep the cells therebetween because the ridge portions 5a or the root portion ridges 5e of the corrugation, or the root portions 5b or the ridge portion depressions 5d of the corrugation come into collision with the rack portions 5f even when the metal thin plates 5, 5 are displaced mutually along the x direction.
  • the contiguous number of the ridge portions 5a and the root portion ridges 5e of the corrugation and the contiguous number of the root portions 5b and the ridge portion depressions 5d of the corrugation are not more than two respectively, it can be prevented that opening areas of the cells which are formed between the ridge portions 5a and the root portion ridges 5e of the corrugation of one metal thin plate 5 and the root portions 5b and the ridge portion depressions 5d of the corrugation of the other metal thin plate 5 are increased infinitely, as shown by A to F of FIG.8, to thus cause extreme differences of respective cells even though the metal thin plates 5, 5 are displaced mutually along the x direction and thus the slant walls 5c, 5c are partially stuck. As a result, formation of the cells can be ensured and also the purification performance for the exhaust gas can be much more improved.
  • the foregoing ridge-root patterns of the metal thin plate 5 act to distribute the exhaust gas into many flow paths as the exhaust gas flows through the cells (see an arrow R labeled to the metal thin plate 5' in FIG.7), whereby the purification performance for the exhaust gas can be still much more improved.
  • various corrugation patterns of the metal thin plate 5 can be easily created by changing phase angles of plural sheets of blades 11 to be laminated, i.e., shifting modes of the pitch ⁇ appropriately.
  • the above fastening members may be composed of the bolts and nuts. However, it is preferable that the embedded nut in the flange should be employed as the nuts in view of fitting to the manufacturing machine.
  • the embodiment provides a molding roll for molding a thin metal plate 5 to be employed as a catalyst carrier.
  • the thin metal plate has first elongate regions having first convex portions (ridge portions 5a) and first concave portions (ridge portion depressions 5d) and second elongate regions having second concave portions (root portions 5b) and second convex portions (root portion ridges 5e).
  • the first elongate regions 5a,5d and the second elongate regions 5b,5e are disposed alternately in a direction perpendicular to the length thereof.
  • the first convex portions (ridge portions 5a) and first concave portions (ridge portion depressions 5d) are arranged alternately along the length of the first elongate regions with cuts being provided between adjacent first convex portions 5a and first concave portions 5d.
  • the second concave portions (root portions 5b) and the second convex portions (root portion ridges 5e) are arranged alternately along the length of the second elongate regions with cuts being provided between adjacent second concave portions 5b and second convex portions 5e.
  • the molding roll comprises:
  • the blades 11 are arranged in adjacent blade sets A-J that each comprises one or more blades.
  • Each blade set A-J is phase-shifted by an integral multiple of said second pitch angle ⁇ relative to the or each adjacent blade set to define alternate first and second rows of aligned roll ridge portions and roll root portions extending parallel to the center axis of the molding roll.
  • the first rows comprise alternating roll ridge portions 10a and roll root portions 10d for respectively forming the first convex portions (ridge portions 5a) and first concave portions (ridge portion depressions 5d)
  • the second rows comprises alternating roll root portions 10b and roll ridge portions 10e for respectively forming the second concave portions (root portions 5b) and second convex portions (root portion ridges 5e).
  • the blade sets A-J are arranged such that the first rows of aligned roll ridge portions 10a and roll root portions 10e produce first elongate regions having first convex portions (ridge portions 5a) and first concave portions (ridge portions 5d) of different lengths and the second rows of aligned roll root portions 10b and roll ridge portions 10e produce second elongate regions, each having second concave portions (root portions 5b) and second convex portions (root portion ridges 5e) of different lengths.
  • the molding roll further comprises respective spacers 22 between adjacent blade sets A-J.
  • the spacers create a clearance to permit the opposite projection of adjacent first convex portions (ridge portions 5a) and first concave portions (ridge portion depressions 5d) and the opposite projection of adjacent second concave portions (root portions 5b) and second convex portions (root portion ridges 5e).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Catalysts (AREA)

Claims (5)

  1. Rouleau de moulage pour mouler une plaque métallique mince (5) employée comme support de catalyseur, la plaque métallique mince comprenant des premières régions allongées comportant des premières parties convexes (5a) et des premières parties concaves (5d) et des deuxièmes régions allongées comportant des deuxièmes parties concaves (5b) et des deuxièmes parties convexes (5e), les premières régions allongées (5a, 5d) et les deuxièmes régions allongées (5b, 5e) étant disposées de façon alternée dans une direction perpendiculaire à leur longueur, les premières parties convexes (5a) et les premières parties concaves (5d) étant agencées alternativement suivant la longueur des premières régions allongées, des entailles étant formées entre les premières parties convexes (5a) et les premières parties concaves (5d) voisines et les deuxièmes parties concaves (5b) et deuxièmes parties convexes (5e) étant agencées alternativement suivant la longueur des deuxièmes régions allongées, des entailles étant formées entre les deuxièmes parties concaves (5b) et les deuxièmes parties convexes (5e) voisines,
       le rouleau de moulage comprenant :
    une pluralité de lames en forme de plaquettes (11) ayant la même forme et placées côte à côte, les axes des plaquettes alignés,
    les lames comportant des régions de formage (10a-10f) qui se répètent avec un premier angle de pas constant (10) pour former une surface de formation qui s'étend dans le sens de la circonférence, ledit premier angle de pas (10) étant un multiple entier d'un deuxième angle de pas (),
    chaque région de formage comprenant des parties d'arête de rouleau (10a, 10e) pour former les premières et deuxièmes parties convexes (5a, 5e) et des parties de creux de rouleau (10b, 10d) pour former les premières et deuxièmes parties concaves (5b, 5e),
    le nombre de parties d'arête de rouleau successives (10a, 10e) dans le sens de la circonférence des lames n'étant pas supérieur à deux,
    le nombre de parties de creux de rouleau successives (10b, 10d) dans le sens de la circonférence des lames n'étant pas supérieur à deux,
    les régions de formage comprenant en outre des parties de palier substantiellement plates (10f) disposées entre les parties d'arête de rouleau et les parties de creux de rouleau voisines, de sorte que chaque partie d'arête de rouleau et chaque partie de creux de rouleau a des parties de palier substantiellement plates respectives sur chacun de ses côtés, la distance de formation entre parties d'arête de rouleau (10a, 10e) et parties de creux de rouleau (10b, 10d) voisines dans le sens de la circonférence desdites lames (11) définissant ledit deuxième angle de pas (), et
    les lames (11) étant agencées en ensembles de lames voisins (A-J) qui comprennent chacun une ou plusieurs lame(s), chaque ensemble de lames (A-J) étant déphasé d'un multiple entier dudit deuxième angle de pas () par rapport aux ou à chaque ensemble de lames voisin pour définir des premières et deuxièmes rangées alternées de parties d'arête de rouleau et de parties de creux de rouleau alignées s'étendant parallèlement à l'axe du rouleau de moulage, les premières rangées comprenant des parties d'arête de rouleau (10a) et des parties de creux de rouleau (10d) alternées pour former respectivement les premières parties convexes (5a) et les premières parties concaves (5d), les deuxièmes rangées comprenant des parties de creux de rouleau (10b) et des parties d'arête de rouleau (10e) alternées pour former respectivement les deuxièmes parties concaves (5b) et les deuxièmes parties convexes (5e) et les ensembles de lames (A-J) étant agencés de telle manière que les premières rangées de parties d'arête de rouleau (10a) et de parties de creux de rouleau (10e) alignées produisent des premières régions allongées ayant des premières parties convexes (5a) et des premières parties concaves (5d) de différentes longueurs et les deuxièmes rangées de parties de creux de rouleau (10b) et de parties d'arête de rouleau (10e) alignées produisent des deuxièmes régions allongées, chacune ayant des deuxièmes parties concaves (5b) et des deuxièmes parties convexes (5e) de différentes longueurs ; et
    une entretoise respective (22) placée entre les ensembles de lames voisins (A-J), les entretoises créant un espace vide pour permettre la saillie opposée de premières parties convexes (5a) et premières parties concaves (5d) voisines et la saillie opposée de deuxièmes parties concaves (5b) et deuxièmes parties convexes (5e) voisines.
  2. Rouleau de moulage selon la revendication 1, dans lequel les régions de formage de chaque lame (11) comprennent le même motif qui est défini par les parties d'arête de rouleau (10a, 10e) et les parties de creux de rouleau (10b, 10d).
  3. Rouleau de moulage selon la revendication 1, dans lequel les parties d'arête de rouleau (10a) et les parties de creux de rouleau (10d) de chaque première rangée sont positionnées de façon irrégulière par rapport aux parties d'arête de rouleau (10a) et aux parties de creux de rouleau (10d) des autres premières rangées et les parties d'arête de rouleau (10e) et les parties de creux de rouleau (10b) de chaque deuxième rangée sont positionnées de façon irrégulière par rapport aux parties d'arête de rouleau (10e) et aux parties de creux de rouleau (10b) des autres deuxièmes rangées.
  4. Rouleau de moulage selon la revendication 1, comprenant en outre :
    un support ayant une partie axe (13) qui a une première bride (14) à une extrémité, les lames (11) et les entretoises (22) étant montées sur la partie axe ;
    une deuxième bride (15) qui est montée à l'autre extrémité de la partie axe, de sorte que les lames et les entretoises sont disposées entre la première bride et la deuxième bride ;
    au moins une broche d'immobilisation (16) passant par des ouvertures définies à cet effet dans la première bride, la deuxième bride, les lames et les entretoises ; et
    des éléments de fixation (17) pour fixer les lames et l'entretoise entre la première bride et la deuxième bride.
  5. Rouleau de moulage selon la revendication 1, comprenant en outre une plaque d'arrêt (24) placée entre l'une des première bride (14) et deuxième bride (15) et la lame (11) qui est positionnée juste à côté de ladite première bride ou deuxième bride, la plaque d'arrêt étant conçue pour se mettre en prise avec un rouleau associé du rouleau de moulage afin de supprimer le déplacement axial du rouleau de moulage par rapport au rouleau associé.
EP19990302246 1998-03-23 1999-03-23 Rouleau à moulage pour pièces métalliques minces utilisées comme support de catalysateur Expired - Lifetime EP0945195B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10074599A JPH11267767A (ja) 1998-03-23 1998-03-23 触媒担体用波形金属薄板の成形ロール装置
JP7459898 1998-03-23
JP10074598A JPH11267766A (ja) 1998-03-23 1998-03-23 触媒担体用金属薄板の成形ロール
JP7459998 1998-03-23

Publications (3)

Publication Number Publication Date
EP0945195A2 EP0945195A2 (fr) 1999-09-29
EP0945195A3 EP0945195A3 (fr) 2001-11-21
EP0945195B1 true EP0945195B1 (fr) 2005-11-30

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EP19990302246 Expired - Lifetime EP0945195B1 (fr) 1998-03-23 1999-03-23 Rouleau à moulage pour pièces métalliques minces utilisées comme support de catalysateur

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EP (1) EP0945195B1 (fr)
DE (1) DE69928590T2 (fr)

Cited By (1)

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US8336176B2 (en) 2003-02-06 2012-12-25 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Method and tool for producing structured sheet metal layers, method for producing a metal honeycomb body, and catalyst carrier body

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DE102006003317B4 (de) 2006-01-23 2008-10-02 Alstom Technology Ltd. Rohrbündel-Wärmetauscher
US9557119B2 (en) 2009-05-08 2017-01-31 Arvos Inc. Heat transfer sheet for rotary regenerative heat exchanger
US9200853B2 (en) 2012-08-23 2015-12-01 Arvos Technology Limited Heat transfer assembly for rotary regenerative preheater
US9579702B2 (en) 2013-01-28 2017-02-28 Arvos Inc. Roller for forming heat transfer elements of heat exchangers
US10175006B2 (en) 2013-11-25 2019-01-08 Arvos Ljungstrom Llc Heat transfer elements for a closed channel rotary regenerative air preheater
US10094626B2 (en) 2015-10-07 2018-10-09 Arvos Ljungstrom Llc Alternating notch configuration for spacing heat transfer sheets
CN108655289B (zh) * 2018-06-11 2024-07-19 苏州航泰蜂窝科技有限公司 一种铝材蜂窝芯打孔涂胶系统

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GB1559084A (en) * 1975-07-08 1980-01-16 Svenska Rotor Maskiner Ab Rolling mills
CA1106703A (fr) * 1979-08-01 1981-08-11 John V. Marlow Faconnage asymetrique des segments fendus de treillage faits a partir de bandes deformables
EP0150913A2 (fr) * 1984-02-01 1985-08-07 General Motors Corporation Outil à laminer pour façonner des bandes ondulées
US4888972A (en) * 1988-07-01 1989-12-26 Pronto Auto Repair Dealerships Inc. Process and apparatus for the manufacture of radiator cooling fins
US5239735A (en) * 1989-12-28 1993-08-31 Matsushita Electric Industrial Co., Ltd. Method for manufacturing expanded mesh sheet
DE4011681A1 (de) * 1990-04-11 1991-10-17 Bueltmann Monika Walzgeruest mit verschiebbaren walzenachsen zum formen von rohren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8336176B2 (en) 2003-02-06 2012-12-25 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Method and tool for producing structured sheet metal layers, method for producing a metal honeycomb body, and catalyst carrier body

Also Published As

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DE69928590D1 (de) 2006-01-05
DE69928590T2 (de) 2006-08-03
EP0945195A3 (fr) 2001-11-21
EP0945195A2 (fr) 1999-09-29

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