JP2001017865A - Canning structure and catalyst supporting method thereof - Google Patents
Canning structure and catalyst supporting method thereofInfo
- Publication number
- JP2001017865A JP2001017865A JP11194125A JP19412599A JP2001017865A JP 2001017865 A JP2001017865 A JP 2001017865A JP 11194125 A JP11194125 A JP 11194125A JP 19412599 A JP19412599 A JP 19412599A JP 2001017865 A JP2001017865 A JP 2001017865A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- ceramic honeycomb
- canning
- honeycomb structure
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 94
- 238000009924 canning Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 96
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 8
- 239000005871 repellent Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000003197 catalytic effect Effects 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/02—Fitting monolithic blocks into the housing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は、内燃機関等から
排出される有害燃焼ガス浄化装置である触媒コンバータ
に用いるキャニング構造体及びその触媒担持方法に関す
る。The present invention relates to a canning structure used for a catalytic converter, which is a device for purifying harmful combustion gas discharged from an internal combustion engine or the like, and a method for supporting the catalyst.
【０００２】[0002]
【従来の技術】 現在、セラミック製ハニカム触媒コン
バータは、自動車用排ガス浄化装置として広く使用され
ている。近年の環境問題から、より一層の排ガス規制強
化に伴い、エンジン始動直後の排ガス温度の低い、いわ
ゆるコールドスタート時においても触媒を機能させる必
要に迫られている。このため、触媒担体の隔壁厚さを、
従来の１／２〜１／６まで薄くすることにより、触媒担
体の熱容量を下げ、触媒担体の昇温を早めるとともに、
圧力損失の減少によるエンジン性能の向上を図ることが
行われている。2. Description of the Related Art At present, ceramic honeycomb catalytic converters are widely used as exhaust gas purifying devices for automobiles. Due to environmental problems in recent years, with the further tightening of exhaust gas regulations, it is necessary to make the catalyst function even at the time of so-called cold start when the exhaust gas temperature is low immediately after the start of the engine. Therefore, the partition wall thickness of the catalyst support,
By reducing the heat capacity of the catalyst carrier by reducing the thickness to 1/2 to 1/6 of the conventional one, the temperature rise of the catalyst carrier is accelerated,
Attempts have been made to improve engine performance by reducing pressure loss.
【０００３】 通常、セラミック製ハニカム触媒コンバ
ータは、図３に示すように製造される。まず、担体メー
カは、検査、合格したセラミック担体１０（セラミック
ハニカム構造体）を梱包し、触媒メーカへ輸送する。触
媒メーカは、これを解梱し、セラミック担体１０（セラ
ミックハニカム構造体）に、触媒担持（触媒コート）、
熱処理、検査等の工程を行い、触媒担体２５（セラミッ
クハニカム触媒担体）とした後、梱包し、キャニングメ
ーカへ輸送する。キャニングメーカは、これを解梱し、
触媒担体２５に保持材１３を取り付け、メタルケース１
１内に圧縮固定（キャニング）することにより、キャニ
ング触媒担体３０とした後、必要に応じてキャニング触
媒担体３０にコーン部１７及びフランジ１８等の接合部
材を溶接して、触媒コンバータ１（セラミック製ハニカ
ム触媒コンバータ）として完成させる（図４参照）。Usually, a ceramic honeycomb catalytic converter is manufactured as shown in FIG. First, the carrier maker packs the inspected and passed ceramic carrier 10 (ceramic honeycomb structure) and transports it to the catalyst maker. The catalyst maker unpacks this, and carries the catalyst (catalyst coat) on the ceramic carrier 10 (ceramic honeycomb structure).
After performing steps such as heat treatment and inspection, the catalyst carrier 25 (ceramic honeycomb catalyst carrier) is packed, packed, and transported to a canning maker. The canning maker unpacks this,
The holding material 13 is attached to the catalyst carrier 25, and the metal case 1
After being fixed to the canning catalyst carrier 30 by compression (canning) in the casing 1, the joining members such as the cone portion 17 and the flange 18 are welded to the canning catalyst carrier 30 as necessary to form the catalytic converter 1 (made of ceramic). (See FIG. 4).
【０００４】 ここで、上記のセラミック担体として、
従来の１／２〜１／６程度の隔壁厚さのセラミックハニ
カム構造体を用いた場合、輸送、触媒担持工程、キャニ
ング工程及び各工程のハンドリング時（例えば、梱包、
解梱、機械設備［コンベアー、チャッキング、キャニン
グ等］への乗せ降ろし作業等）におけるセラミックハニ
カム構造体の割れや欠けが多発するという問題があっ
た。Here, as the above ceramic carrier,
When a conventional ceramic honeycomb structure having a partition wall thickness of about 1/2 to 1/6 is used, transportation, catalyst supporting step, canning step and handling of each step (for example, packing,
There has been a problem that cracking and chipping of the ceramic honeycomb structure frequently occur during unpacking and loading / unloading on mechanical equipment [conveyor, chucking, canning, etc.].
【０００５】 これを解消するため、本発明者らは、キ
ャニング構造体（触媒担持前のセラミックハニカム構造
体を予めメタルケース内に保持材で固定させたもの）を
用いたセラミック製ハニカム触媒コンバータの製造プロ
セスを新たに提案した。In order to solve this problem, the present inventors have developed a ceramic honeycomb catalytic converter using a canning structure (a ceramic honeycomb structure before carrying a catalyst, which is fixed in a metal case in advance with a holding material). The manufacturing process is newly proposed.
【０００６】 しかしながら、上記のキャニング構造体
は、触媒担持（触媒コート）時に、セラミックハニカム
構造体だけでなく、排ガスとの触媒反応に関与しない保
持材にも高価な触媒が担持されてしまうため、非経済的
であった。However, in the above-mentioned canning structure, at the time of carrying a catalyst (catalyst coating), an expensive catalyst is carried not only on the ceramic honeycomb structure but also on a holding material that does not participate in a catalytic reaction with exhaust gas. Was uneconomical.
【０００７】[0007]
【発明が解決しようとする課題】 本発明は、かかる状
況に鑑みてなされたものであり、その目的とするところ
は、触媒担持時に保持材に高価な触媒を担持することな
く、輸送、触媒担持工程、キャニング工程及び各工程の
ハンドリング時におけるセラミックハニカム構造体の欠
けや割れを防止することができるキャニング構造体及び
その触媒担持方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to transport and support a catalyst without carrying an expensive catalyst on a holding material when the catalyst is carried. An object of the present invention is to provide a canning structure capable of preventing chipping and cracking of a ceramic honeycomb structure during a step, a canning step, and handling of each step, and a method for supporting a catalyst thereof.
【０００８】[0008]
【課題を解決するための手段】 すなわち、本発明によ
れば、触媒担持前のセラミックハニカム構造体を予めメ
タルケース内に保持材で固定させてなるキャニング構造
体であって、該セラミックハニカム構造体と該保持材と
の間に、不透水性フィルムを配設したことを特徴とする
キャニング構造体が提供される。That is, according to the present invention, there is provided a canning structure in which a ceramic honeycomb structure before supporting a catalyst is fixed in a metal case in advance with a holding material, and the ceramic honeycomb structure is provided. A canning structure provided with a water-impermeable film disposed between the holding member and the holding member.
【０００９】 このとき、不透水性フィルムは、少なく
ともセラミックハニカム構造体と保持材とが接する部分
に周設されていることが好ましい。また、本発明では、
不透水性フィルムが、セラミックハニカム構造体の両端
面から１０ｍｍ以上（好ましくは、２０ｍｍ以上、より
好ましくは、３０ｍｍ以上）突出させた突出部を有する
ことが好ましく、不透水性フィルムの突出部の外径が、
セラミックハニカム構造体の外径よりも大きいことがよ
り好ましい。At this time, it is preferable that the water-impermeable film is provided around at least a portion where the ceramic honeycomb structure and the holding material are in contact with each other. In the present invention,
It is preferable that the water-impermeable film has a protrusion protruding from the both end faces of the ceramic honeycomb structure by 10 mm or more (preferably, 20 mm or more, more preferably, 30 mm or more). The diameter is
More preferably, it is larger than the outer diameter of the ceramic honeycomb structure.
【００１０】 更に、本発明では、不透水性フィルムの
形状が円筒状であり、不透水性フィルムの厚さが０．１
ｍｍ以下（好ましくは、０．０５ｍｍ以下、より好まし
くは、０．０３ｍｍ以下）であることが好ましい。この
とき、不透水性フィルムは、可燃性であるとともに、撥
水性であることが好ましい。Further, in the present invention, the shape of the water-impermeable film is cylindrical, and the thickness of the water-impermeable film is 0.1%.
mm or less (preferably 0.05 mm or less, more preferably 0.03 mm or less). At this time, the water-impermeable film is preferably flammable and water-repellent.
【００１１】 尚、本発明では、保持材が非膨脹性セラ
ミック繊維マットであることが好ましい。In the present invention, the holding material is preferably a non-expandable ceramic fiber mat.
【００１２】 また、本発明によれば、セラミックハニ
カム構造体を予めメタルケース内に保持材で固定させて
なるキャニング構造体の触媒担持方法であって、セラミ
ックハニカム構造体と保持材との間に、不透水性フィル
ムを配設し、次いで、触媒スラリーを該不透水性フィル
ムの該セラミックハニカム構造体側のみに流すことによ
り、保持材への触媒担持を防止し、セラミックハニカム
構造体のみに触媒を担持するようにしたことを特徴とす
るキャニング構造体の触媒担持方法が提供される。Further, according to the present invention, there is provided a method for supporting a catalyst of a canning structure in which a ceramic honeycomb structure is fixed in a metal case in advance by a holding material, wherein a catalyst is provided between the ceramic honeycomb structure and the holding material. By disposing a water-impermeable film and then flowing the catalyst slurry only to the ceramic honeycomb structure side of the water-impermeable film, the catalyst is prevented from being carried on the holding material, and the catalyst is applied only to the ceramic honeycomb structure. There is provided a method for supporting a catalyst of a canning structure, wherein the catalyst is supported.
【００１３】[0013]
【発明の実施の形態】 本発明のキャニング構造体は、
触媒担持前のセラミックハニカム構造体を予めメタルケ
ース内に保持材で固定させてなるキャニング構造体であ
って、セラミックハニカム構造体と保持材との間に、不
透水性フィルムを配設したものである。BEST MODE FOR CARRYING OUT THE INVENTION The canning structure of the present invention
A canning structure in which a ceramic honeycomb structure before supporting a catalyst is fixed in a metal case in advance with a holding material, and a water-impermeable film is disposed between the ceramic honeycomb structure and the holding material. is there.
【００１４】 これにより、触媒担持時に保持材に高価
な触媒を担持することなく、輸送、触媒担持工程、キャ
ニング工程及び各工程のハンドリング時におけるセラミ
ックハニカム構造体の欠けや割れを防止することができ
る。[0014] With this, it is possible to prevent chipping and cracking of the ceramic honeycomb structure during transportation, catalyst carrying step, canning step and handling of each step without carrying an expensive catalyst on the holding material when carrying the catalyst. .
【００１５】 以下、図面に基づき本発明を更に詳細に
説明する。図１は、本発明のキャニング構造体の一例を
示すものであり、（ａ）は概略斜視図、（ｂ）は平面
図、（ｃ）は、縦断面図である。本発明のキャニング構
造体は、図１に示すように、触媒担持前のセラミックハ
ニカム構造体１０を予めメタルケース１１内に保持材１
３で固定させてなるものであり、セラミックハニカム構
造体１０と保持材１３との間に、不透水性フィルム６０
を配設したものである。Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 shows an example of the canning structure of the present invention, wherein (a) is a schematic perspective view, (b) is a plan view, and (c) is a longitudinal sectional view. As shown in FIG. 1, the canning structure of the present invention includes a ceramic honeycomb structure 10 before carrying a catalyst, a holding material 1 in a metal case 11 in advance.
3 between the ceramic honeycomb structure 10 and the holding material 13.
Is arranged.
【００１６】 このとき、本発明のキャニング構造体
は、図１に示すように、不透水性フィルム６０が少なく
ともセラミックハニカム構造体１０と保持材１３とが接
する部分に周設されていることが好ましい。これは、上
記キャニング構造体を触媒担持（触媒コート）した場
合、触媒成分を含む触媒スラリーの保持材への流出を防
止することができるからである。At this time, in the canning structure of the present invention, as shown in FIG. 1, the water-impermeable film 60 is preferably provided around at least a portion where the ceramic honeycomb structure 10 and the holding member 13 are in contact with each other. . This is because when the canning structure is loaded with a catalyst (catalyst coating), it is possible to prevent the catalyst slurry containing the catalyst component from flowing out to the holding material.
【００１７】 また、本発明のキャニング構造体は、図
１（ｃ）に示すように、不透水性フィルムが、セラミッ
クハニカム構造体１０の両端面から１０ｍｍ以上（好ま
しくは、２０ｍｍ以上、より好ましくは、３０ｍｍ以
上）の長さａで突出させた突出部６２を有することがよ
り好ましい。また、不透水性フィルムの突出部の外径Ｌ
2が、セラミックハニカム構造体の外径Ｌ1よりも大きい
ことが更に好ましい。これにより、触媒担持工程におけ
る触媒スラリーの保持材への流出防止が容易となり、キ
ャニング構造体の触媒担持（触媒コート）を確実に行う
ことができるとともに、触媒担持工程を最適化すること
ができる。Further, in the canning structure of the present invention, as shown in FIG. 1C, the water-impermeable film is 10 mm or more (preferably 20 mm or more, more preferably 20 mm or more) from both end faces of the ceramic honeycomb structure 10. , 30 mm or more). In addition, the outer diameter L of the protrusion of the water-impermeable film
2, more preferably greater than the outer diameter L 1 of the ceramic honeycomb structure. This makes it easy to prevent the catalyst slurry from flowing out to the holding material in the catalyst loading step, and can reliably carry out the catalyst loading (catalyst coating) on the canning structure and optimize the catalyst loading step.
【００１８】 尚、本発明で用いる不透水性フィルム
は、円筒状のものであることが好ましい。これは、セラ
ミックハニカム構造体に不透水性フィルムを容易に周設
することができるため、キャニング工程を簡略化できる
とともに、セラミックハニカム構造体の外周部を繋ぎ目
なく包囲することができるため、触媒スラリーのセラミ
ックハニカム構造体の外部への流出を確実に防止するこ
とができるからである。It is preferable that the water-impermeable film used in the present invention has a cylindrical shape. This is because the water-impermeable film can be easily provided around the ceramic honeycomb structure, so that the canning process can be simplified and the outer peripheral portion of the ceramic honeycomb structure can be seamlessly surrounded. This is because the slurry can be reliably prevented from flowing out of the ceramic honeycomb structure.
【００１９】 また、本発明で用いる不透水性フィルム
は、保持材であるセラミック繊維マットと一体化された
シート状のものであってもよい。これにより、セラミッ
クハニカム構造体の外周面に、不透水性フィルムと保持
材とを同時に巻き回すことができるため、キャニング工
程を簡略化することができる。The water-impermeable film used in the present invention may be in the form of a sheet integrated with a ceramic fiber mat as a holding material. Thereby, the water-impermeable film and the holding material can be simultaneously wound around the outer peripheral surface of the ceramic honeycomb structure, so that the canning process can be simplified.
【００２０】 更に、本発明で用いる不透水性フィルム
の厚さは、０．１ｍｍ以下（好ましくは、０．０５ｍｍ
以下、より好ましくは、０．０３ｍｍ以下）であること
が好ましい。これは、触媒担持（触媒コート）されたキ
ャニング構造体から不透水性フィルムを除去した場合、
セラミックハニカム構造体をメタルケース内に保持材で
確実に固定するため、不透水性フィルムの厚さをできる
だけ薄くすることが必要であるからである。Further, the thickness of the water-impermeable film used in the present invention is 0.1 mm or less (preferably 0.05 mm
Or less, more preferably 0.03 mm or less). This is because when the water-impermeable film is removed from the catalyst-carrying (catalyst-coated) canning structure,
This is because it is necessary to reduce the thickness of the water-impermeable film as much as possible in order to securely fix the ceramic honeycomb structure in the metal case with the holding material.
【００２１】 このとき、本発明で用いる不透水性フィ
ルムは、可燃性であることが好ましい。これは、触媒担
持（触媒コート）後の熱処理（５００〜７００℃）によ
り、不要となった不透水性フィルムを容易に除去するこ
とができるからである。At this time, the water-impermeable film used in the present invention is preferably flammable. This is because the unnecessary water-impermeable film can be easily removed by the heat treatment (500 to 700 ° C.) after carrying the catalyst (catalyst coating).
【００２２】 また、本発明で用いる不透水性フィルム
は、撥水性であることが、触媒スラリーの保持材への流
出を確実に防止することができるため好ましい。Further, the water-impermeable film used in the present invention is preferably water-repellent because it can reliably prevent the catalyst slurry from flowing out to the holding material.
【００２３】 ここで、本発明で用いる不透水性フィル
ムの材質は、上記の条件をすべて満たすものであれば、
特に限定されないが、ポリエチレン又はナイロン等であ
ることが好ましい。Here, the material of the water-impermeable film used in the present invention may be any material that satisfies all the above conditions.
Although not particularly limited, it is preferably polyethylene or nylon.
【００２４】 更に、本発明のキャニング構造体は、上
記の効果に加えて、外部からの衝撃や振動からセラミッ
クハニカム構造体を保護することができるため、輸送、
触媒担持工程、キャニング工程及び各工程におけるハン
ドリング時におけるセラミックハニカム構造体（特に、
薄壁［隔壁厚さ：０．１０ｍｍ以下］であるもの）の欠
けや割れを防止することができる。Further, in addition to the above effects, the canning structure of the present invention can protect the ceramic honeycomb structure from external shocks and vibrations.
The ceramic honeycomb structure (particularly,
Chipping and cracking of a thin wall (thickness of the partition wall: 0.10 mm or less) can be prevented.
【００２５】 本発明のキャニング構造体は、メタルケ
ースが押し込み構造又は巻締め構造であることが好まし
い。これは、キャニング時の面圧分布が均一で、エンジ
ン排気ガスのリーク、保持材の排気ガスによる風食、エ
ンジン振動によるセラミックハニカム構造体の遊動、破
損等の信頼性を高くすることができるからである。特
に、メタルケースが巻締め構造である場合、面圧分布が
均一であるだけでなく、セラミックハニカム構造体の径
のバラツキによらず、一定の面圧でキャニングできるた
め、機械的強度の低いセラミックハニカム構造体（特
に、薄壁であるもの）には、特に好ましい。In the canning structure of the present invention, it is preferable that the metal case has a pushing structure or a winding structure. This is because the surface pressure distribution during canning is uniform, and the reliability of leakage of engine exhaust gas, wind erosion due to exhaust gas of the holding material, play of the ceramic honeycomb structure due to engine vibration, breakage, etc. can be increased. It is. In particular, when the metal case has a winding structure, not only the surface pressure distribution is uniform, but also canning can be performed at a constant surface pressure regardless of the variation in the diameter of the ceramic honeycomb structure. Particularly preferred for honeycomb structures (especially those with thin walls).
【００２６】 尚、本発明で用いる保持材は、非膨脹性
セラミック繊維マットであることが好ましい。これは、
セラミックハニカム構造体の径のバラツキによるキャニ
ング時の最大面圧を低くできるだけでなく、加熱時に膨
脹マットのような過大な圧力が発生しないため、セラミ
ックハニカム構造体（特に、薄壁であるもの）の破損を
防止することができるからである。The holding material used in the present invention is preferably a non-expandable ceramic fiber mat. this is,
Not only can the maximum surface pressure during canning be reduced due to variations in the diameter of the ceramic honeycomb structure, but also excessive pressure such as an expansion mat does not occur during heating, so that the ceramic honeycomb structure (especially, one having a thin wall) can be used. This is because breakage can be prevented.
【００２７】 ここで、本発明で用いる非膨脹性セラミ
ック繊維マットは、アルミナ、ムライト、炭化珪素、窒
化珪素及びジルコニアからなる群より選ばれた少なくと
も１種からなり、繊維径が２μｍ以上６μｍ未満である
セラミック繊維から形成され、且つ、室温時に２ｋｇｆ
／ｃｍ2の初期面圧をかけた後、１０００℃まで昇温し
た時、少なくとも１ｋｇｆ／ｃｍ2の面圧を発生すると
ともに、触媒コンバータの実使用温度範囲内で大きく増
減を生じない圧縮特性を有していることが好ましい。Here, the non-expandable ceramic fiber mat used in the present invention comprises at least one selected from the group consisting of alumina, mullite, silicon carbide, silicon nitride, and zirconia, and has a fiber diameter of 2 μm or more and less than 6 μm. 2kgf at room temperature, formed from certain ceramic fibers
After applying the initial surface pressure / cm 2, when heated to 1000 ° C., while generating at least 1 kgf / cm 2 of surface pressure, the compression characteristic which does not cause large increases or decreases in the actual operating temperature range of the catalytic converter It is preferable to have.
【００２８】 本発明で用いるセラミックハニカム構造
体の隔壁厚さは、０．１０ｍｍ以下（より好ましくは、
０．０８ｍｍ以下）であることが好ましい。これは、コ
ールドスタート時においても触媒を機能させるため、触
媒担体の熱容量を下げ、触媒担体の昇温を早めるととも
に、圧力損失の減少によるエンジン性能の向上を図るこ
とができるからである。The partition wall thickness of the ceramic honeycomb structure used in the present invention is 0.10 mm or less (more preferably,
0.08 mm or less). This is because the catalyst can function even during a cold start, so that the heat capacity of the catalyst carrier can be reduced, the temperature of the catalyst carrier can be increased quickly, and the engine performance can be improved by reducing the pressure loss.
【００２９】 次に、本発明のキャニング構造体を用い
たセラミック製ハニカム触媒コンバータの製造プロセス
の一例を図２に基づいて説明する。まず、担体メーカ
は、検査、合格したセラミック担体１０（セラミックハ
ニカム構造体）に、不透水性フィルム６０を周設した
後、更に保持材１３を巻き回し、メタルケース１１内に
セラミック担体１０を圧縮固定（キャニング）を行い、
キャニング構造体２２（図１参照）とした後、梱包し、
触媒メーカへ輸送する。Next, an example of a manufacturing process of a ceramic honeycomb catalytic converter using the canning structure of the present invention will be described with reference to FIG. First, the carrier maker places the water-impermeable film 60 around the ceramic carrier 10 (ceramic honeycomb structure) that has been inspected and passed, and then further winds the holding material 13 to compress the ceramic carrier 10 into the metal case 11. Fixing (canning)
After forming the canning structure 22 (see FIG. 1), packing is performed.
Transport to catalyst manufacturer.
【００３０】 触媒メーカは、これを解梱し、キャニン
グ構造体２２に、触媒担持（触媒コート）、熱処理、検
査等の工程を行い、キャニング触媒担体３０とした後、
梱包し、キャニングメーカへ輸送する。尚、触媒担持
は、キャニング構造体２２の上部から触媒スラリーを投
入しつつ、キャニング構造体２２の下部から触媒スラリ
ーを吸引することにより、セラミックハニカム構造体に
触媒スラリーを浸漬させ、キャニング構造体２２に触媒
を担持するものである。このとき、セラミックハニカム
構造体の外周部に周設された不透水性フィルムは、触媒
スラリーの保持材への流出を防止することができるだけ
でなく、熱処理工程により容易に除去することもでき
る。The catalyst maker unpacks this, performs steps such as catalyst loading (catalyst coating), heat treatment, and inspection on the canning structure 22 to form the canning catalyst carrier 30.
Pack and transport to canning maker. In addition, the catalyst is loaded by pouring the catalyst slurry from the upper portion of the canning structure 22 and sucking the catalyst slurry from the lower portion of the canning structure 22 so that the catalyst slurry is immersed in the ceramic honeycomb structure. A catalyst. At this time, the water-impermeable film provided around the outer peripheral portion of the ceramic honeycomb structure can not only prevent the catalyst slurry from flowing out to the holding material, but also can be easily removed by the heat treatment step.
【００３１】 キャニングメーカは、これを解梱し、必
要に応じてキャニング触媒担体３０にコーン部１７及び
フランジ１８等の接合部材を溶接することにより、触媒
コンバータ（セラミック製ハニカム触媒コンバータ１）
として完成させる（図４参照）。The canning maker unpacks this, and if necessary, welds joining members such as the cone portion 17 and the flange 18 to the canning catalyst carrier 30 to thereby form a catalytic converter (ceramic honeycomb catalytic converter 1).
(See FIG. 4).
【００３２】 以上のことから、上記に示したセラミッ
ク製ハニカム触媒コンバータの製造方法は、従来の製造
方法（図３参照）と比較すると、セラミックハニカム構
造体を外部からの衝撃や振動から保護することができる
ため、輸送、触媒担持工程、キャニング工程及び各工程
のハンドリング時におけるセラミックハニカム構造体の
欠けや割れを大幅に低減できる。From the above, the manufacturing method of the above-mentioned ceramic honeycomb catalytic converter protects the ceramic honeycomb structure from external shocks and vibrations as compared with the conventional manufacturing method (see FIG. 3). Therefore, chipping and cracking of the ceramic honeycomb structure during transportation, catalyst supporting step, canning step, and handling of each step can be significantly reduced.
【００３３】[0033]
【実施例】 以下、本発明を実施例を用いてさらに詳細
に説明するが、本発明はこれらの実施例に制限されるも
のではない。 （実施例）直径：１０６ｍｍ、長さ：１１４ｍｍ、隔壁
厚さ：０．０３ｍｍ、貫通孔：２３３個／ｃｍ2のコー
ジェライト製セラミック担体（セラミックハニカム構造
体）の外周部に、厚さ：０．０３ｍｍの不透水性フィル
ム（材質：ポリエチレン）を巻き回した後、保持材とし
て、１ｍ2当たり１２００ｇの非膨脹性セラミック繊維
マット（三菱化学（株）社製「マフテック（商品
名）」）を更に巻き回した。保持材及び不透水性フィル
ムを巻き回したセラミックハニカム構造体を、押し込み
用テーパー治具を用いて、内径：１１４ｍｍ、長さ：１
２４ｍｍ、厚さ１．５ｍｍのステンレス製押し込みキャ
ニング用缶体（メタルケース）に押し込むことにより、
図１に示すキャニング構造体２２を作製した。尚、不透
水性フィルム６０は、セラミックハニカム構造体１０の
両端面から１０ｍｍの長さａで突出させた突出部６２を
有する。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. (Example) Diameter: 106 mm, length: 114 mm, partition wall thickness: 0.03 mm, through-holes: 233 pieces / cm 2 , thickness: 0 on the outer peripheral portion of a cordierite ceramic carrier (ceramic honeycomb structure) impermeable film .03Mm (material: polyethylene) was wound, as the holding material, non-expansion of 1 m 2 per 1200g ceramic fiber mat (Mitsubishi Chemical Co., Ltd. "Mafutekku (trade name)") and Further winding. The ceramic honeycomb structure in which the holding material and the water-impermeable film are wound is used to press the taper jig for pushing in, the inner diameter: 114 mm, the length: 1
By pushing into a 24mm, 1.5mm thick stainless steel canning can body (metal case),
The canning structure 22 shown in FIG. 1 was produced. In addition, the water-impermeable film 60 has a protruding portion 62 protruding from the both end surfaces of the ceramic honeycomb structure 10 with a length a of 10 mm.
【００３４】 次に、実施例で得られたキャニング構造
体２２を、図２に示すセラミック製ハニカム触媒コンバ
ータの製造プロセスに２０個流した。この結果、触媒担
持（触媒コート）工程における触媒スラリーの保持材へ
の流出を完全に防止することができ、高価な触媒スラリ
ーの損失を防止することができた。また、上記に示す製
造プロセスの全工程におけるセラミックハニカム構造体
の割れや欠けは、全く認められなかった。Next, 20 canning structures 22 obtained in the example were passed through a process for manufacturing a ceramic honeycomb catalytic converter shown in FIG. As a result, it was possible to completely prevent the catalyst slurry from flowing into the holding material in the catalyst loading (catalyst coating) step, and to prevent loss of the expensive catalyst slurry. Also, no cracks or chips were found in the ceramic honeycomb structure in all the steps of the manufacturing process described above.
【００３５】（比較例１）前述の実施例と同一の条件
で、不透水性フィルム６０を用いずにキャニング構造体
を作製し、図２に示すセラミック製ハニカム触媒コンバ
ータの製造プロセスに２０個流した。この結果、触媒担
持工程において触媒スラリーが保持材に流出し、触媒ス
ラリー使用量の８％が保持材に担持され、無駄となっ
た。尚、製造プロセスの全工程におけるセラミックハニ
カム構造体の割れや欠けの発生は全く認められなかっ
た。(Comparative Example 1) A canning structure was manufactured under the same conditions as in the above-mentioned example without using the water-impermeable film 60, and 20 cans were manufactured in the manufacturing process of the ceramic honeycomb catalytic converter shown in FIG. did. As a result, the catalyst slurry flowed out to the holding material in the catalyst supporting step, and 8% of the used amount of the catalyst slurry was supported on the holding material, resulting in waste. It should be noted that no cracking or chipping of the ceramic honeycomb structure was observed at all steps of the manufacturing process.
【００３６】（比較例２）直径：１０６ｍｍ、長さ：１
１４ｍｍ、隔壁厚さ：０．０６ｍｍ、貫通孔：１４０個
／ｃｍ2のコージェライト製セラミック担体（セラミッ
クハニカム構造体）２０個を、図３に示すセラミック製
ハニカム触媒コンバータ（押し込みキャニング）の製造
プロセスに流した。この結果、上記に示す製造プロセス
の全工程におけるセラミックハニカム構造体の割れや欠
けの発生率は、２５％に達していた。(Comparative Example 2) Diameter: 106 mm, length: 1
Manufacturing process of ceramic honeycomb catalytic converter (push canning) shown in FIG. 3 using 20 cordierite ceramic carriers (ceramic honeycomb structure) having 14 mm, partition wall thickness: 0.06 mm, and through holes: 140 / cm 2 . Shed. As a result, the rate of occurrence of cracks and chips in the ceramic honeycomb structure in all the steps of the manufacturing process described above reached 25%.
【００３７】[0037]
【発明の効果】 本発明のキャニング構造体及びその触
媒担持方法は、触媒担持時に保持材に高価な触媒を担持
することなく、輸送、触媒担持工程、キャニング工程及
び各工程のハンドリング時におけるセラミックハニカム
構造体の欠けや割れを防止することができる。EFFECTS OF THE INVENTION The canning structure and the catalyst supporting method of the present invention provide a ceramic honeycomb during transport, catalyst supporting step, canning step and handling of each step without supporting an expensive catalyst on a holding material at the time of supporting a catalyst. Chipping and cracking of the structure can be prevented.
【図１】 本発明のキャニング構造体の一例を示すもの
であり、（ａ）は概略斜視図であり、（ｂ）は平面図、
（ｃ）は縦断面図である。FIG. 1 shows an example of a canning structure of the present invention, wherein (a) is a schematic perspective view, (b) is a plan view,
(C) is a longitudinal sectional view.
【図２】 本発明のキャニング構造体を用いたセラミッ
ク製ハニカム触媒コンバータの製造プロセスの一例を示
す概要図である。FIG. 2 is a schematic view showing an example of a manufacturing process of a ceramic honeycomb catalytic converter using the canning structure of the present invention.
【図３】 従来のセラミック製ハニカム触媒コンバータ
の製造プロセスの一例を示す概要図である。FIG. 3 is a schematic view showing an example of a manufacturing process of a conventional ceramic honeycomb catalytic converter.
【図４】 セラミック製ハニカム触媒コンバータの一例
を示す概略説明図である。FIG. 4 is a schematic explanatory view showing an example of a ceramic honeycomb catalytic converter.
１…セラミック製ハニカム触媒コンバータ、１０…セラ
ミックハニカム構造体（セラミック担体）、１１…メタ
ルケース、１３…保持材、１７…コーン部、１８…フラ
ンジ、２２…キャニング構造体、２５…セラミックハニ
カム触媒担体（触媒担体）、３０…キャニング触媒担
体、６０…不透水性フィルム、６２…不透水性フィルム
の突起部。DESCRIPTION OF SYMBOLS 1 ... Ceramic honeycomb catalytic converter, 10 ... Ceramic honeycomb structure (ceramic carrier), 11 ... Metal case, 13 ... Holding material, 17 ... Cone part, 18 ... Flange, 22 ... Canning structure, 25 ... Ceramic honeycomb catalyst carrier (Catalyst carrier), 30: canning catalyst carrier, 60: water-impermeable film, 62: protrusion of water-impermeable film.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3G091 AA02 AB01 BA39 GA06 GB01X GB01Z GB10X GB10Z GB13Z GB15Z GB16Z GB17X GB17Z GB19Z HA26 HA27 HA28 HA29 HA31 4G069 AA01 AA03 AA08 CA03 DA06 EA18 EB07 FA02 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3G091 AA02 AB01 BA39 GA06 GB01X GB01Z GB10X GB10Z GB13Z GB15Z GB16Z GB17X GB17Z GB19Z HA26 HA27 HA28 HA29 HA31 4G069 AA01 AA03 AA08 CA03 DA06 EA18 EB07 FA02
Claims (10)
を予めメタルケース内に保持材で固定させてなるキャニ
ング構造体であって、 該セラミックハニカム構造体と該保持材との間に、不透
水性フィルムを配設したことを特徴とするキャニング構
造体。1. A canning structure in which a ceramic honeycomb structure before supporting a catalyst is fixed in a metal case in advance with a holding material, wherein a water-impermeable material is provided between the ceramic honeycomb structure and the holding material. A canning structure comprising a film.
ックハニカム構造体と保持材とが接する部分に周設され
ている請求項１に記載のキャニング構造体。2. The canning structure according to claim 1, wherein the water-impermeable film is provided around at least a portion where the ceramic honeycomb structure and the holding member are in contact with each other.
ム構造体の両端面から１０ｍｍ以上突出させた突出部を
有する請求項１又は２に記載のキャニング構造体。3. The canning structure according to claim 1, wherein the water-impermeable film has a projecting portion projecting at least 10 mm from both end faces of the ceramic honeycomb structure.
出部の外径が、セラミックハニカム構造体の外径よりも
大きい請求項１〜３のいずれか１項に記載のキャニング
構造体。4. The canning structure according to claim 1, wherein an outer diameter of the protrusion of the water-impermeable film according to claim 3 is larger than an outer diameter of the ceramic honeycomb structure.
る請求項１〜４のいずれか１項に記載のキャニング構造
体。5. The canning structure according to claim 1, wherein the water-impermeable film has a cylindrical shape.
以下である請求項１〜５のいずれか１項に記載のキャニ
ング構造体。6. The thickness of the water-impermeable film is 0.1 mm.
The canning structure according to claim 1, wherein:
項１〜６のいずれか１項に記載のキャニング構造体。7. The canning structure according to claim 1, wherein the water-impermeable film is flammable.
項１〜７のいずれか１項に記載のキャニング構造体。8. The canning structure according to claim 1, wherein the water-impermeable film is water-repellent.
トである請求項１〜８のいずれか１項に記載のキャニン
グ構造体。9. The canning structure according to claim 1, wherein the holding material is a non-expandable ceramic fiber mat.
ルケース内に保持材で固定させてなるキャニング構造体
の触媒担持方法であって、 セラミックハニカム構造体と保持材との間に、不透水性
フィルムを配設し、次いで、触媒スラリーを該不透水性
フィルムの該セラミックハニカム構造体側のみに流すこ
とにより、保持材への触媒担持を防止し、セラミックハ
ニカム構造体のみに触媒を担持するようにしたことを特
徴とするキャニング構造体の触媒担持方法。10. A catalyst supporting method for a canning structure in which a ceramic honeycomb structure is fixed in a metal case in advance by a holding material, wherein a water-impermeable film is provided between the ceramic honeycomb structure and the holding material. Disposing, and then flowing the catalyst slurry only to the ceramic honeycomb structure side of the water-impermeable film, thereby preventing the catalyst from being carried on the holding material and carrying the catalyst only on the ceramic honeycomb structure. A method for supporting a catalyst on a canning structure, comprising:
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19412599A JP4076677B2 (en) | 1999-07-08 | 1999-07-08 | CANNING STRUCTURE AND ITS CATALYST SUPPORT METHOD |
| CA002313586A CA2313586C (en) | 1999-07-08 | 2000-07-05 | Canning structure and catalyst carrying method thereof |
| EP00305759A EP1067278B1 (en) | 1999-07-08 | 2000-07-07 | Catalyst canning structure and catalyst carrying method thereof |
| DE60014782T DE60014782T2 (en) | 1999-07-08 | 2000-07-07 | Arrangement of a catalyst in a housing and method for applying a catalytic coating on the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19412599A JP4076677B2 (en) | 1999-07-08 | 1999-07-08 | CANNING STRUCTURE AND ITS CATALYST SUPPORT METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001017865A true JP2001017865A (en) | 2001-01-23 |
| JP4076677B2 JP4076677B2 (en) | 2008-04-16 |
Family
ID=16319335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19412599A Expired - Lifetime JP4076677B2 (en) | 1999-07-08 | 1999-07-08 | CANNING STRUCTURE AND ITS CATALYST SUPPORT METHOD |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1067278B1 (en) |
| JP (1) | JP4076677B2 (en) |
| CA (1) | CA2313586C (en) |
| DE (1) | DE60014782T2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024143020A1 (en) * | 2022-12-27 | 2024-07-04 | 株式会社キャタラー | Production method for exhaust gas purification catalyst |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009037271A1 (en) * | 2009-08-12 | 2011-02-17 | Volkswagen Ag | catalyst device |
| CN107355286A (en) * | 2017-08-29 | 2017-11-17 | 浙江银轮机械股份有限公司 | The encapsulating structure of engine aftertreatment system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959865A (en) * | 1972-12-08 | 1976-06-01 | Minnesota Mining And Manufacturing Company | Method of containing a resiliently supported rigid ceramic catalyst support |
| US4142864A (en) * | 1977-05-31 | 1979-03-06 | Engelhard Minerals & Chemicals Corporation | Catalytic apparatus |
| US4340505A (en) * | 1981-04-28 | 1982-07-20 | Johnson Matthey, Inc. | Reducing precious metal use in catalyst substrates |
| DE3827863A1 (en) * | 1988-08-17 | 1990-02-22 | Leistritz Ag | Catalytic exhaust gas purification apparatus |
| US5866079A (en) * | 1993-09-03 | 1999-02-02 | Ngk Insulators, Ltd. | Ceramic honeycomb catalytic converter |
-
1999
- 1999-07-08 JP JP19412599A patent/JP4076677B2/en not_active Expired - Lifetime
-
2000
- 2000-07-05 CA CA002313586A patent/CA2313586C/en not_active Expired - Fee Related
- 2000-07-07 DE DE60014782T patent/DE60014782T2/en not_active Expired - Lifetime
- 2000-07-07 EP EP00305759A patent/EP1067278B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024143020A1 (en) * | 2022-12-27 | 2024-07-04 | 株式会社キャタラー | Production method for exhaust gas purification catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1067278A3 (en) | 2002-08-14 |
| EP1067278B1 (en) | 2004-10-13 |
| CA2313586C (en) | 2005-02-15 |
| DE60014782T2 (en) | 2006-02-09 |
| JP4076677B2 (en) | 2008-04-16 |
| CA2313586A1 (en) | 2001-01-08 |
| EP1067278A2 (en) | 2001-01-10 |
| DE60014782D1 (en) | 2004-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100401908B1 (en) | Container for receiving cell structure and assembly thereof | |
| JPS626855B2 (en) | ||
| US5151254A (en) | Exhaust gas cleaning device for internal combustion engine | |
| KR100626194B1 (en) | Honeycomb structure and canning structure containing it | |
| KR19980032821A (en) | Manufacturing method of catalytic converter for use in internal combustion engine | |
| US5943771A (en) | Method of making a catalytic converter for use in an internal combustion engine | |
| US6199749B1 (en) | Method for manufacturing a brazed metallic honeycomb body | |
| JP4076677B2 (en) | CANNING STRUCTURE AND ITS CATALYST SUPPORT METHOD | |
| JP3359596B2 (en) | Canning structure and manufacturing method thereof | |
| US8261962B2 (en) | Method for brazing a metallic honeycomb body for exhaust gas treatment and apparatus for carrying out the method | |
| JP2001000871A (en) | Ceramic honeycomb structure, ceramic honeycomb catalyst carrier, and ceramic honeycomb catalytic converter using the same | |
| JP3390698B2 (en) | Canning structure | |
| JPH10141052A (en) | Manufacture of ceramic catalyst converter and ceramic catalyst converter | |
| US6622382B2 (en) | Method for production of exhaust gas purifying catalyst | |
| JP2000042421A (en) | Manufacturing method of catalytic converter | |
| JP2002018290A (en) | Carrier for ceramic honeycomb structure catalyst and ceramic honeycomb structure catalyst converter using the same | |
| JP3571832B2 (en) | Manufacturing method of metal carrier | |
| JPH05317727A (en) | Method for manufacturing catalytic converter for purifying exhaust gas | |
| JP5650892B2 (en) | Method for manufacturing catalyst device | |
| JP2001303944A (en) | Catalytic converter for exhaust gas purification | |
| CN205517799U (en) | Cellular catalyst of canning | |
| JPH09155204A (en) | Metal carrier having an elastic holding member on the outer periphery of the honeycomb body | |
| JP2003278538A (en) | Catalyst converter, manufacturing method of catalyst converter, and metallic shell | |
| JPH0240241A (en) | Formation of filling-up part and carrying layer on monolithic carrier | |
| JPH10309473A (en) | Metal carrier for catalytic converter and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050128 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20071025 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071030 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071207 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080129 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080130 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4076677 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110208 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120208 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130208 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130208 Year of fee payment: 5 |
|
| EXPY | Cancellation because of completion of term |