WO2011122635A1 - ハニカム構造体の製造方法 - Google Patents
ハニカム構造体の製造方法 Download PDFInfo
- Publication number
- WO2011122635A1 WO2011122635A1 PCT/JP2011/057873 JP2011057873W WO2011122635A1 WO 2011122635 A1 WO2011122635 A1 WO 2011122635A1 JP 2011057873 W JP2011057873 W JP 2011057873W WO 2011122635 A1 WO2011122635 A1 WO 2011122635A1
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- WO
- WIPO (PCT)
- Prior art keywords
- honeycomb structure
- elastic plate
- plate
- end surface
- holes
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
- B28B11/006—Making hollow articles or partly closed articles
- B28B11/007—Using a mask for plugging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/02—Apparatus or processes for treating or working the shaped or preshaped articles for attaching appendages, e.g. handles, spouts
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- 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
- Y10T29/49398—Muffler, manifold or exhaust pipe 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
- Y10T29/49616—Structural member making
- Y10T29/49623—Static structure, e.g., a building component
- Y10T29/49625—Openwork, e.g., a truss, joist, frame, lattice-type or box beam
Definitions
- the present invention relates to a method for manufacturing a honeycomb structure having a plurality of through holes whose ends are sealed.
- honeycomb filter structures have been widely known for DPF (Diesel particulate filter) and the like.
- This honeycomb filter structure has a structure in which one end side of some through holes of a honeycomb structure having a large number of through holes is sealed with a sealing material, and the other end side of the remaining through holes is sealed with a sealing material.
- Patent Document 1 discloses a method for manufacturing such a honeycomb filter structure.
- the sealing material is supplied to the end portion of the through hole of the honeycomb structure by pressing the sealing material with the piston 8 against one end of the honeycomb structure 1 disposed in the cylinder 7.
- the present invention has been made in view of the above problems, and an object thereof is to provide a method for manufacturing a honeycomb structure having excellent production efficiency.
- a first manufacturing method of a honeycomb structure having a plurality of through holes whose ends are sealed A step of filling the sealing material into one end of the through hole by pressing the sealing material with a plate against one end surface of the honeycomb structure having a plurality of through holes; B part which separates the other part of the part which opposes the one end surface in the board, and the one end surface by projecting a part of the part which opposes the one end surface in the board to the one end surface.
- the present invention after the plate and the one end surface of the honeycomb structure are brought close to each other by filling with the sealing agent, a part of the plate protrudes toward the one end surface and the other part of the plate is separated from the one end surface. Therefore, it becomes easy to separate the honeycomb structure from the plate.
- a part of the portion of the plate facing the one end surface is a central portion of the portion of the plate facing the one end surface.
- a mask is interposed between the one end face and the plate, and the mask has a through hole communicating with only a part of the plurality of through holes of the honeycomb structure.
- the plate is an elastic body, and it is preferable that the protrusion is performed by deforming a portion of the plate facing the one end surface into a convex shape toward the one end surface. Thereby, B process can be performed easily.
- the C step of filling the other end of the other through holes of the honeycomb structure with the sealing material by pressing the sealing member against the other end surface of the honeycomb structure with the plate, and the C in the plate after the C step It is preferable to further include a D step of separating a part of the part facing the one end face toward the other end face to separate the other part of the plate facing the one end face from the other end face.
- the A step is prepared by preparing a main body having a recess and a communication path that opens to the inner surface of the recess, and an elastic plate arranged to cover the recess, Forming a recess in the elastic plate by discharging the fluid in the recess through the communication path; Supplying a sealing material into the recess of the elastic plate; Disposing one end face of the honeycomb structure having a plurality of through holes at a position facing the concave portion of the elastic plate; and By eliminating a recess in the elastic plate by supplying a fluid between the main body and the elastic plate via the communication path; In the step B, a fluid is further supplied between the main body portion and the elastic plate via the communication path, and a portion of the elastic plate facing the one end surface of the honeycomb structure is used as the one end surface. It is preferable to carry out by making it deform
- a second manufacturing method of a honeycomb structure having a plurality of through holes whose ends are sealed A step of pressing the sealing material against one end face of the honeycomb structure having a plurality of through holes with an elastic plate, and filling the sealing material into one end of the through holes; A step of separating the peripheral portion of the elastic plate facing the one end surface from the one end surface by deforming a portion of the elastic plate facing the one end surface into a convex shape toward the one end surface.
- the elastic plate is deformed in a convex shape toward the one end surface, and the peripheral portion of the elastic plate is unified. Since it is away from the end face, it is easy to pull the honeycomb structure away from the elastic plate.
- a third manufacturing method of a honeycomb structure having a plurality of through holes whose ends are sealed A step of preparing a main body having a recess and a communication path that opens to the inner surface of the recess, and an elastic plate arranged to cover the recess; Forming a recess in the elastic plate by discharging the fluid in the recess through the communication path; Supplying a sealing material into the recess of the elastic plate; Arranging one end face of the honeycomb structure having a plurality of through holes at a position facing the concave portion of the elastic plate; Removing a concave portion of the elastic plate by supplying a fluid between the main body portion and the elastic plate via the communication path; Is provided.
- the sealing material is supplied by eliminating the concave portion of the elastic plate, the sealing material can be filled relatively evenly into the plurality of through holes.
- a method for manufacturing a honeycomb structure excellent in production efficiency is provided.
- FIG. 1 is a schematic cross-sectional view of a sealing device according to a first embodiment of the present invention.
- FIG. 2 is a view taken along the line II-II of the sealing device of FIG. 3A is a perspective view of a honeycomb structure used in the sealing device of FIG. 1, and
- FIG. 3B is a partially enlarged view of FIG. 4 (a) is a perspective view of the mask of FIG. 1, and
- FIG. 4 (b) is a partially enlarged view of FIG. 4 (a).
- 5A is a partial cross-sectional view for explaining the operation of the sealing device of FIG. 1
- FIG. 5B is a partial cross-sectional view subsequent to FIG. 6A is a partial cross-sectional view subsequent to FIG. 5B, and
- FIG. 6B is a partial cross-sectional view subsequent to FIG. 6A.
- 7A is a partial cross-sectional view subsequent to FIG. 6B, and
- FIG. 7B is a partial cross-sectional view subsequent to FIG. 7A.
- 8A is a partial cross-sectional view subsequent to FIG. 7B, and
- FIG. 8B is a partial cross-sectional view subsequent to FIG. 7A.
- 9A is a cross-sectional view for explaining the operation of the sealing device according to the second embodiment of the present invention, and FIG. 9B is a partial cross-sectional view subsequent to FIG. 9A.
- FIG. 9C is a partial cross-sectional view subsequent to FIG. 9B.
- FIG. 1 is a schematic cross-sectional view of a sealing device 100 according to the first embodiment of the present embodiment.
- the sealing device 100 according to the present embodiment mainly includes a main body unit 10, an elastic plate 20, a pump 50, and a holding unit 80.
- the main body 10 is made of a rigid material.
- the rigid material include metals such as stainless steel and polymer materials such as fiber reinforced plastic.
- a recess 10 d is formed on the upper surface 10 a of the main body 10.
- the shape of the recess 10d is a columnar shape as shown in FIGS.
- the side surface 10b of the recess 10d is perpendicular to the upper surface 10a of the main body 10 and the bottom surface 10c is parallel.
- the diameter of the recess 10d can be set to 100 to 320 mm, for example.
- the depth of the recess 10d can be set to 0.2 to 20 mm, for example.
- the elastic plate 20 is disposed on the upper surface 10a of the main body 10 so as to cover the opening surface of the recess 10d.
- the elastic plate 20 has elasticity and can be easily deformed.
- a rubber plate is preferable.
- the rubber include natural rubber, and synthetic rubber such as styrene butadiene rubber, butadiene rubber, butyl rubber, ethylene propylene rubber, nitrile rubber, chloroprene rubber, fluorine rubber, silicone rubber, and urethane rubber.
- the thickness of the elastic plate 20 is not particularly limited, but can be, for example, 0.3 to 3.0 mm.
- the elastic plate 20 is fixed to the main body 10 by a ring member 25 and a bolt 31.
- the ring member 25 has an opening 25a at a position corresponding to the concave portion 10d of the main body 10 and thereby has an annular shape.
- the ring member 25 is arrange
- Through-holes h are formed in the ring member 25 and the elastic plate 20, and screw holes j corresponding to the through-holes h are formed in the main body portion 10, and the bolts 31 penetrate these through-holes h.
- the peripheral portion of the elastic plate 20 is fixed in close contact with the portion around the recess 10d on the upper surface 10a of the main body 10 by being screwed into the screw hole j and fixed.
- the inner diameter of the opening 25 a of the ring member 25 is preferably larger than the inner diameter of the recess 10 d of the main body 10.
- the main body 10 further has a communication passage 10e that opens to the bottom surface 10c of the recess 10d.
- the communication path 10e opens to the bottom surface 10c of the recess 10d, but may be open to the inner surface of the recess 10d.
- the communication path 10e may open to the side surface 10b of the recess 10d.
- the shape and number of openings of the communication passage 10e are not particularly limited.
- a pump 50 is connected to the communication path 10e via a connection pipe 14.
- the pump 50 includes a cylinder 51, a piston 53 disposed in the cylinder 51, and a piston rod 54 connected to the piston 53.
- a motor 55 that reciprocates the piston rod 54 in the axial direction is connected to the piston rod 54.
- the piston rod 54 may be moved manually.
- a closed space V formed by the main body 10, the connection pipe 14, and the cylinder 51 is formed between the elastic plate 20 and the piston 53, and a fluid is contained in the closed space V.
- FL is filled.
- the fluid FL is not particularly limited, but a liquid is preferable, and spindle oil or the like is particularly preferable. Then, by moving the piston 53, the fluid FL can be discharged from the concave portion 10d of the main body portion 10, and the fluid FL can be supplied into the concave portion 10d. It is also preferable that the fluid FL is a gas such as air.
- a holding unit 80 is provided on the main body unit 10.
- the holding unit 80 includes a holding tool 81 that holds the honeycomb structure 70 and a pneumatic cylinder 82 to which the holding tool 81 is connected.
- the holder 81 holds the honeycomb structure 70 so that the opening surface on one side of the through hole 70a faces the elastic plate 20 and the recess 10d as shown in FIG.
- the pneumatic cylinder 82 has a cylinder 82a extending in the vertical direction and a piston 82b provided in the cylinder 82a. By adjusting the pressure supplied from the outside, the pressure on both the upper and lower sides of the piston 82b can be adjusted. It has become. As a result, the pneumatic cylinder 82 can move the holder 81 in the direction in which the honeycomb structure 70 and the elastic plate 20 approach each other and in the direction in which they move away from each other. In addition, the pneumatic cylinder 82 allows the honeycomb structure 70 to be in close contact with the mask 170 described later by pressing the holder 81 downward with a predetermined force in accordance with the gas supply pressure before and after the piston 82b. it can.
- the pneumatic cylinder 82 can also permit the holder 81 to move freely in the vertical direction by releasing the pressure before and after the piston 82b. That is, the holding unit 80 can switch between a state in which the honeycomb structure 70 held by the holder 81 can freely move upward and a state in which the honeycomb structure 70 is fixed to the main body 10. .
- An example of the honeycomb structure 70 used in the present embodiment is a cylindrical body in which a large number of through holes 70a are arranged substantially in parallel as shown in FIG.
- the cross-sectional shape of the through hole 70a is a square as shown in FIG.
- the plurality of through holes 70a are arranged in a square arrangement in the honeycomb structure 70, that is, such that the central axis of the through hole 70a is located at the apex of the square, respectively.
- the square size of the cross section of the through hole 70a can be set to, for example, 0.8 to 2.5 mm on a side.
- the length of the honeycomb structure 70 in the direction in which the through holes 70a extend is not particularly limited, but may be 40 to 350 mm, for example.
- the outer diameter of the honeycomb structure 70 is not particularly limited, but may be, for example, 10 to 320 mm.
- the material of the honeycomb structure 70 is not particularly limited, but a ceramic material is preferable from the viewpoint of high temperature resistance. Examples thereof include alumina, silica, mullite, cordierite, glass, oxides such as aluminum titanate, silicon carbide, silicon nitride, and metal.
- the aluminum titanate can further contain magnesium and / or silicon.
- Such a honeycomb structure 70 is usually porous.
- the honeycomb structure 70 may be a green molded body (unfired molded body) that becomes a ceramic material as described above by firing later.
- a green molded object contains the inorganic compound source powder which is a ceramic raw material, organic binders, such as methylcellulose, and the additive added as needed.
- the inorganic compound source powder includes an aluminum source powder such as ⁇ -alumina powder, and a titanium source powder such as anatase-type or rutile-type titania powder.
- magnesium source powders such as magnesia powder and magnesia spinel powder and / or silicon source powders such as silicon oxide powder and glass frit can be included.
- organic binder examples include celluloses such as methylcellulose, carboxymethylcellulose, hydroxyalkylmethylcellulose, and sodium carboxymethylcellulose; alcohols such as polyvinyl alcohol; and lignin sulfonate.
- additives include a pore-forming agent, a lubricant and a plasticizer, a dispersant, and a solvent.
- Examples of the pore former include carbon materials such as graphite; resins such as polyethylene, polypropylene, and polymethyl methacrylate; plant materials such as starch, nut shells, walnut shells, and corn; ice; and dry ice.
- Lubricants and plasticizers include alcohols such as glycerin; higher fatty acids such as caprylic acid, lauric acid, palmitic acid, alginic acid, oleic acid and stearic acid; metal stearates such as aluminum stearate; polyoxyalkylene alkyl Examples include ether.
- dispersant examples include inorganic acids such as nitric acid, hydrochloric acid and sulfuric acid; organic acids such as oxalic acid, citric acid, acetic acid, malic acid and lactic acid; alcohols such as methanol, ethanol and propanol; ammonium polycarboxylate Surfactant etc. are mentioned.
- solvent for example, monohydric alcohols such as methanol, ethanol, butanol and propanol; glycols such as propylene glycol, polypropylene glycol and ethylene glycol; and water can be used.
- the mask 170 is disposed in the opening 25 a of the ring member 25 on the elastic plate 20.
- the material of the mask 170 is not specifically limited, For example, a metal and resin are mentioned.
- FIG. 4A shows an example of the mask 170 used in this embodiment.
- the mask 170 is a circular plate-like member and has a large number of through-holes 170a extending in the thickness direction.
- the cross-sectional shape of the through hole 170a is a square corresponding to the through hole 70a (see FIG. 3B) of the honeycomb structure 70, as shown in FIG. 4B.
- the plurality of through holes 170a are arranged in a staggered manner as shown in FIG. 4B, and each through hole 170a is formed of the plurality of through holes 70a arranged in a square shape in FIG. 3B. These are arranged to face only a plurality of through-holes that are not adjacent to each other vertically and horizontally.
- the mask 170 is formed with an orientation flat 170b, and the ring member 25 may be provided with a projection 25b corresponding to the orientation flat correspondingly.
- the outer diameter of the mask 170 is preferably larger than the inner diameter of the recess 10 d of the main body 10.
- the main body 10 is preferably provided with a vibrator 140 such as an ultrasonic vibrator.
- the sealing material 130 is supplied into the recess 20 d of the elastic plate 20.
- the surface of the sealing material 130 is flattened and defoamed by driving the vibrator 140.
- the sealing material 130 is not particularly limited as long as it can close the end of the through hole 70a of the honeycomb structure 70, but is preferably liquid.
- a slurry containing a ceramic material or a ceramic raw material, a binder, and a solvent can be exemplified.
- Ceramic material examples include the constituent materials of the above-described honeycomb structure and the raw materials thereof.
- binder examples include celluloses such as methylcellulose, carboxymethylcellulose, hydroxyalkylmethylcellulose, and sodium carboxymethylcellulose; alcohols such as polyvinyl alcohol; and organic binders such as lignin sulfonate.
- the amount of binder used can be, for example, 3 to 5000 mL.
- the solvent for example, monohydric alcohols such as methanol, ethanol, butanol and propanol; glycols such as propylene glycol, polypropylene glycol and ethylene glycol; and water can be used. Of these, water is preferable, and ion-exchanged water is more preferably used from the viewpoint of few impurities.
- the amount of solvent used can be 15 to 40% by weight.
- a mask 170 is set on the elastic plate 20 so as to cover the concave portion 10 d of the main body 10, and then the holding tool 81 is moved downward by the pneumatic cylinder 82.
- the honeycomb structure 70 By bringing the honeycomb structure 70 into contact with the mask 170, a part of the through holes 70 a of the honeycomb structure 70 and the through holes 170 a of the mask 170 are communicated, and further, the holding tool 81 is pressed downward by the pneumatic cylinder 82.
- the honeycomb structure 70 is fixed to the mask 170 and the main body 10 so that the lower end surface (one end surface) of the honeycomb structure 70 faces the concave portion 20d of the elastic plate 20 with the mask 170 interposed therebetween.
- the sealing material 130 is supplied into a part of the through holes 70a of the honeycomb structure 70 through the through holes 170a of the mask 170, and the sealing portion 70p is formed.
- the piston 53 is further raised to move the elastic plate 20 and the main body portion 10 together. Further, fluid FL is supplied. As a result, as shown in FIG. 7B, the portion of the elastic plate 20 facing the one end surface of the honeycomb structure is deformed in a convex shape upward, whereby a load is applied to the central portion of the mask 170. As a result, the mask 170 and the honeycomb structure 70 move upward. At this time, since the peripheral part (other part) of the elastic plate 20 deformed into a convex shape is separated from the mask 170, the mask 170 and the honeycomb structure 70 can be easily separated from the main body part 10.
- the top and bottom are turned over, and the honeycomb structure 70 is again held by the holder 81.
- the same operation is performed on the other end face of the honeycomb structure using the mask 170 ′ in which the arrangement of the mask 170 and the through holes 170 a is a zigzag arrangement opposite to each other.
- the other end side of the remaining through-holes 70a is sealed by the sealing material, and the sealing part 70p is formed.
- the portion of the elastic plate 20 facing the one end face of the honeycomb structure is deformed upward so that the mask 170 ′ and the honeycomb structure 70 can be easily removed from the main body 10 and the elastic plate. Can be pulled away from 20.
- the honeycomb filter structure can be manufactured by drying and firing the honeycomb structure 70 in which both ends of the through hole 70a are sealed.
- a portion of the elastic plate 200 facing the one end surface of the honeycomb structure is deformed into a convex shape so that the central portion, which is a part of the elastic plate (plate), becomes the one end surface of the honeycomb structure 70. Accordingly, the mask 170 that is in contact with the honeycomb structure 70 after supplying the sealing material 130 can be easily separated from the main body 10 and the elastic plate 20. Therefore, production efficiency can be increased, and the sealed honeycomb structure can be manufactured at low cost.
- the elastic plate 20 it is easy to apply pressure evenly to the sealing material at the time of sealing, and the sealing material tends to be supplied evenly to the plurality of through holes.
- the sealing device 200 of this embodiment mainly includes a cylinder 202 that houses the honeycomb structure 70, a closing plate 204 that closes one end of the cylinder 202, and a main piston 214 and a sub piston 218 that are inserted into the cylinder 202.
- the honeycomb structure 70 is accommodated in the cylinder 202 so that the axial direction of the through hole 70 a is parallel to the axial direction of the cylinder 202, and is in contact with the closed plate 204.
- the main piston 214 includes a main piston plate 212 and a main piston rod 213.
- the secondary piston 218 includes a secondary piston plate 216 and a secondary piston rod 217.
- the main piston plate 212 is a disk having an outer diameter corresponding to the inner diameter of the cylinder 202.
- the sub piston plate 216 is a disc having an outer shape smaller than the inner diameter of the cylinder 202.
- a concave portion 212a capable of accommodating the sub piston plate 216 is formed at the center of the main piston plate 212. In the accommodated state, the surface of the main piston plate 212 and the surface of the sub piston plate 216 are located on the same plane. To do.
- main piston plate 212 and the main piston rod 213 have a through hole 213a for allowing the sub piston rod 217 to penetrate in the axial direction. And as shown to (a) of FIG. 9, the sub piston rod 217 is accommodated in the through-hole 213a of the main piston rod 213.
- FIG. 9 shows that the sub piston rod 217 is accommodated in the through-hole 213a of the main piston rod 213.
- the mask 170 is disposed on one end of the honeycomb structure in the cylinder 202. Subsequently, after the sealing material 130 is supplied onto the mask 170, the main piston 214 and the sub piston 218 are placed in the cylinder. Insert into. Subsequently, by pressing the main piston 214 against the honeycomb structure 70, as shown in FIG. 9B, the sealing material 130 is made to pass through the through holes of the mask 170 by the main piston plate 212 and the sub piston plate 216. It supplies in the through-hole 170a via 170a, and the sealing part 70p is formed by this.
- the main piston plate 212 reaches the end of the cylinder 202 as shown in FIG.
- the main piston 214 is pressed to expose the honeycomb structure 70 to the outside.
- the auxiliary piston rod 217 of the auxiliary piston 218 is pressed against the main piston 214 in the direction of the honeycomb structure 70.
- the sub piston plate 216 which is a part of the entire piston plate (plate) 219 formed by the main piston plate 212 and the sub piston plate 216, protrudes toward the mask 170.
- the mask 170 and the honeycomb structure 70 can be easily separated. Thereafter, the closed plate 204 and the mask 170 are removed from the honeycomb structure 70.
- this invention is not limited to the said embodiment, A various deformation
- the elastic plate 20 is fixed to the main body 10 by the ring member 25 and the bolt 31, but the fixing method is not particularly limited.
- the elastic plate 20 may be fixed to the upper surface 10a of the main body 10 by an adhesive.
- the communication path 10e is formed by the main body 10 and the connection pipe 14, but the pump 50 may be directly connected to the main body 10 without the connection pipe 14.
- a piston pump including a cylinder 51, a piston 53, and a piston rod 54 is employed as the pump 50.
- the pump 50 is not particularly limited as long as the fluid can be supplied and discharged.
- the shape of the recess 10d is not particularly limited, and can be set as appropriate according to the honeycomb structure 70 to be sealed.
- the planar shape of the concave portion 10d viewed from above may be an ellipse, a rectangle, a square, or the like other than a circle.
- the size in the case of a rectangle or square can be, for example, 50 to 300 mm on a side.
- the side surface 10b does not need to be vertical and the bottom surface 10c is not parallel to the upper surface 10a of the main body 10, and may be, for example, an inclined surface or a curved surface.
- the holding unit 80 includes the pneumatic cylinder 82, but is not limited thereto, and can be replaced with various mechanisms such as a gear mechanism.
- the holding unit 80 is not necessarily essential.
- the weight is placed on the honeycomb structure 70 to fix the honeycomb structure to the main body 10, and when the honeycomb structure 70 is separated from the main body, the weight is removed. Then, the honeycomb structure may be movable. Further, when the honeycomb structure has a certain amount of weight, the honeycomb structure is fixed by its own weight, so that an embodiment without special fixing means is also possible.
- the shape of the surface in contact with the mask 170 in the sub piston plate 216 used in the second embodiment is not particularly limited, and can be appropriately determined according to the shape of the target honeycomb structure 70.
- the diameter of the sub piston plate 216 can be set to 1/5 to 1/2 of the outer diameter of the honeycomb structure 70.
- the shape and structure of the honeycomb structure 70 are not limited to the above.
- the outer shape of the honeycomb structure 70 may not be a cylinder, and may be a prism such as a quadrangular prism.
- the cross-sectional shape of the through hole 70a of the honeycomb structure 70 may not be a square, and may be, for example, a rectangle, a triangle, a polygon, a circle, or the like.
- the arrangement of the through holes 70a may not be a square arrangement, for example, a triangular arrangement, a staggered arrangement, or the like.
- the shape and arrangement of the through holes of the mask can be appropriately changed according to the shape and arrangement of the through holes 70a of the honeycomb structure 70.
- the plate-like mask 170 having a large number of through holes is adopted, but the location shielded by the mask is also arbitrary.
- the present invention can be implemented without using such a mask 170.
- the plug may be plugged with a material that decomposes when heated in some of the through holes 70a of the honeycomb structure 70 before the sealing process, and the plug may be pyrolyzed after the sealing.
- the honeycomb structure 70 is made to protrude from the elastic plate 20 or the whole piston plate of the main body 10 by projecting a part of the elastic plate 20 or the whole piston plate 219 after the sealing process. There is an effect that it can be easily separated from 219.
- the central portion of the elastic plate 20 and the entire piston plate 219 that protrudes from the central portion of the portion facing the one end surface of the honeycomb structure is projected. It may be a portion, and a plurality of portions may be partially projected. Further, the method of projecting a part of the plate that presses the sealing material toward the honeycomb structure is not limited to the above.
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Abstract
Description
複数の貫通孔を有するハニカム構造体の一端面に対して封口材を板によって押圧することにより貫通孔の一端に封口材を充填するA工程と、
板における一端面と対向する部分の一部を、一端面に向かって突出させることにより前記板における一端面と対向する部分の他部と前記一端面とを引き離すB工程と、を備える。
前記連通路を介して前記凹部内の流体を排出することにより前記弾性板の凹部を形成すること、
前記弾性板の凹部内に封口材を供給すること、
前記弾性板の凹部と対向する位置に、複数の貫通孔を有するハニカム構造体の一端面を配置すること、及び、
前記連通路を介して前記本体部と前記弾性板との間に流体を供給することにより前記弾性板の凹部を解消させることにより行い、
前記B工程を、前記連通路を介して前記本体部と前記弾性板との間にさらに流体を供給して、前記弾性板における前記ハニカム構造体の前記一端面と対向する部分を前記一端面に向かって凸状に変形させることにより行うことが好ましい。
複数の貫通孔を有するハニカム構造体の一端面に対して封口材を弾性板によって押圧して、前記貫通孔の一端に前記封口材を充填するA工程と、
前記弾性板における前記一端面と対向する部分を、前記一端面に向かって凸状に変形させることにより、前記弾性板における前記一端面と対向する部分の周辺部と前記一端面とを引き離すB工程と、
を備える。
本発明によれば、封口剤の充填によって板とハニカム構造体の一端面とが近接した状態となった後、弾性板が一端面に向かって凸状に変形して弾性板の周辺部が一端面から離れるので、弾性板からハニカム構造体を引き離すことが容易となる。
凹部及び前記凹部の内面に開口する連通路を有する本体部、及び、前記凹部を覆うように配置された弾性板を準備する工程と、
前記連通路を介して前記凹部内の流体を排出することにより前記弾性板の凹部を形成する工程と、
前記弾性板の凹部内に封口材を供給する工程と、
前記弾性板の凹部と対向する位置に、複数の貫通孔を有するハニカム構造体の一端面を配置する工程と、
前記連通路を介して前記本体部と前記弾性板との間に流体を供給することにより、前記弾性板の凹部を解消させる工程と、
を備える。
図1は、本実施形態の第一実施形態に係る封口装置100の概略断面図である。本実施形態に係る封口装置100は、主として、本体部10、弾性板20、ポンプ50、保持部80を備える。
つづいて、上述の封口装置100を用いたハニカム構造体の製造方法について説明する。まず、図1の状態から、予め、空気圧シリンダ82を駆動して、ハニカム構造体70を保持する保持具81上方に引き上げておくと共に、マスク170を弾性板20上から外しておく。次に、ポンプ50のピストン53を下方に引くことにより、本体部10の凹部10dから流体FLを下方に排出させる。これにより、図5の(a)に示すように、弾性板20が変形して凹部10dの側面10b及び底面10cに密着し、これによって、弾性板20の凹部20dが形成する。
封口材130は、ハニカム構造体70の貫通孔70aの端部を閉鎖できるものであれば特に限定されないが、液状であることが好ましい。例えば、封口材として、セラミクス材料又はセラミクス原料と、バインダと、溶媒とを含むスラリーが例示できる。
続いて、本発明の第二実施形態について図9を参照して説明する。ここでは第一実施形態と異なる点のみ説明し、重複する説明は省略する。
本実施形態の封口装置200は、ハニカム構造体70を収容する円筒202、円筒202の一端を閉じる閉板204、及び、円筒202内に挿入される主ピストン214及び副ピストン218を主として備える。ハニカム構造体70は、その貫通孔70aの軸方向が、円筒202の軸方向と平行になるように円筒202内に収容され、閉板204と接触している。
例えば、凹部10dを上から見た平面形状は、円形以外に楕円形、矩形、正方形等とすることもできる。この場合、矩形や正方形の場合の大きさは、例えば、一辺50~300mmとすることができる。また、本体部10の上面10aに対して、側面10bが垂直、かつ、底面10cが平行である必要は無く、例えば、斜面であったり曲面であってもよい。
Claims (8)
- 端部が封口された複数の貫通孔を有するハニカム構造体の製造方法であって、
複数の貫通孔を有するハニカム構造体の一端面に対して封口材を板によって押圧して、前記貫通孔の一端に前記封口材を充填するA工程と、
前記板における前記一端面と対向する部分の一部を、前記一端面に向かって突出させることにより、前記板における前記一端面と対向する部分の他部と前記一端面とを引き離すB工程と、
を備えるハニカム構造体の製造方法。 - 前記板における前記一端面と対向する部分の一部は、前記板における前記一端面と対向する部分の中央部である請求項1記載の方法。
- 前記A工程では前記一端面と前記板との間にマスクを介在させ、前記マスクは、前記ハニカム構造体の複数の貫通孔の内の一部のみと連通する貫通孔を有する、請求項1又は2記載の方法。
- 前記板は弾性板であり、
前記突出を、前記板における前記一端面と対向する部分を前記一端面に向かって凸状に変形させることにより行う請求項1~3のいずれか一項記載の方法。 - 前記B工程後に前記ハニカム構造体の他端面に対して封口材を板によって押圧することにより前記ハニカム構造体の他の貫通孔の他端に前記封口材を充填するC工程と、
前記C工程後に、前記板における前記一端面と対向する部分の一部を、前記他端面に向かって突出させることにより、前記板における前記一端面と対向する部分の他部と前記他端面とを引き離すD工程と、をさらに備える請求項1~4のいずれか1項に記載の方法。 - 前記A工程を、
凹部及び前記凹部の内面に開口する連通路を有する本体部及び、前記凹部を覆うように配置された弾性板を準備すること、
前記連通路を介して前記凹部内の流体を排出することにより前記弾性板の凹部を形成すること、
前記弾性板の凹部内に封口材を供給すること、
前記弾性板の凹部と対向する位置に、複数の貫通孔を有するハニカム構造体の一端面を配置すること、及び、
前記連通路を介して前記本体部と前記弾性板との間に流体を供給することにより前記弾性板の凹部を解消させること、により行い、
前記B工程を、前記連通路を介して前記本体部と前記弾性板との間にさらに流体を供給して、前記弾性板における前記ハニカム構造体の前記一端面と対向する部分を前記一端面に向かって凸状に変形させることにより行う、請求項1又は3又は5に記載の方法。 - 端部が封口された複数の貫通孔を有するハニカム構造体の製造方法であって、
複数の貫通孔を有するハニカム構造体の一端面に対して封口材を弾性板によって押圧して、前記貫通孔の一端に前記封口材を充填するA工程と、
前記弾性板における前記一端面と対向する部分を、前記一端面に向かって凸状に変形させることにより、前記弾性板における前記一端面と対向する部分の周辺部と前記一端面とを引き離すB工程と、
を備えるハニカム構造体の製造方法。 - 凹部及び前記凹部の内面に開口する連通路を有する本体部、及び、前記凹部を覆うように配置された弾性板を準備する工程と、
前記連通路を介して前記凹部内の流体を排出することにより前記弾性板の凹部を形成する工程と、
前記弾性板の凹部内に封口材を供給する工程と、
前記弾性板の凹部と対向する位置に、複数の貫通孔を有するハニカム構造体の一端面を配置する工程と、
前記連通路を介して前記本体部と前記弾性板との間に流体を供給することにより前記弾性板の凹部を解消させる工程と、
を備える、端部が封口された複数の貫通孔を有するハニカム構造体の製造方法。
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US13/637,852 US8782893B2 (en) | 2010-03-30 | 2011-03-29 | Method for manufacturing a honeycomb-structured object |
EP11762859.4A EP2537654B1 (en) | 2010-03-30 | 2011-03-29 | Method for manufacturing a honeycomb-structured object |
BR112012024279A BR112012024279A2 (pt) | 2010-03-30 | 2011-03-29 | método para fabricar um objeto estruturado em favo de mel |
CN2011800149453A CN102791448A (zh) | 2010-03-30 | 2011-03-29 | 蜂窝构造体的制造方法 |
PL11762859T PL2537654T3 (pl) | 2010-03-30 | 2011-03-29 | Sposób wytwarzania przedmiotu o strukturze plastra miodu |
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JP2015009442A (ja) * | 2013-06-28 | 2015-01-19 | 住友化学株式会社 | ハニカム構造体の製造方法及びグリーンハニカム成形体の封口用治具 |
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JP6970133B2 (ja) | 2019-03-11 | 2021-11-24 | 日本碍子株式会社 | ハニカム成形体の受台、ハニカム成形体の製造方法及びハニカム焼成体の製造方法 |
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US20130036612A1 (en) | 2013-02-14 |
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