JP3338703B1 - Method for manufacturing honeycomb body - Google Patents
Method for manufacturing honeycomb bodyInfo
- Publication number
- JP3338703B1 JP3338703B1 JP2001308196A JP2001308196A JP3338703B1 JP 3338703 B1 JP3338703 B1 JP 3338703B1 JP 2001308196 A JP2001308196 A JP 2001308196A JP 2001308196 A JP2001308196 A JP 2001308196A JP 3338703 B1 JP3338703 B1 JP 3338703B1
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- adhesive
- foil
- corrugated
- joint
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000011888 foil Substances 0.000 claims abstract description 262
- 239000000853 adhesive Substances 0.000 claims abstract description 195
- 230000001070 adhesive effect Effects 0.000 claims abstract description 194
- 230000002093 peripheral effect Effects 0.000 claims abstract description 76
- 238000005219 brazing Methods 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 15
- 230000004323 axial length Effects 0.000 claims abstract description 14
- 238000005304 joining Methods 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 4
- 238000007665 sagging Methods 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 claims 1
- 239000011230 binding agent Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 44
- 239000003054 catalyst Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 11
- 230000008646 thermal stress Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000969 carrier Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 methanol Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【要約】
【課題】 金属製の平箔３と波箔４とを巻き回して積層
しロウ付けしたハニカム体１であって、ロールによる接
着剤の塗布に見られる塗布不良や塗布範囲の増大を起こ
すことなく、ハニカム体製造装置の設備費を安価にし、
ハニカム体の失火対策も講じることのできるハニカム体
の製造方法を提供する。
【解決手段】 平箔又は波箔のロウ接合すべき部分であ
ってハニカム体端部の接合部１７及び／又は端部から軸
方向に離れたハニカム体内部の横断面接合部１８に対応
する部分に接着剤を塗布し、次いで平箔と波箔とを巻き
回してハニカム体形状とし、さらにハニカム体端面のう
ちハニカム体外周部の軸方向全長にわたる接合部１６に
対応する部分をバインダー液表面に接触させて平箔と波
箔の接触部５にバインダーを吸い上げさせ、その後にロ
ウ粉末をハニカム体に散布して接着剤及びバインダー付
着部にロウ材を被着することを特徴とするハニカム体の
製造方法。A honeycomb body (1) in which a metal flat foil (3) and a corrugated foil (4) are wound, laminated, and brazed. Without raising the cost of the honeycomb body manufacturing equipment,
Provided is a method for manufacturing a honeycomb body that can take measures against misfire of the honeycomb body. SOLUTION: A flat foil or corrugated foil to be brazed, which corresponds to a joint 17 at an end of the honeycomb body and / or a joint 18 at a cross section inside the honeycomb body which is axially separated from the end. An adhesive is then applied, and then a flat foil and a corrugated foil are wound to form a honeycomb shape. Further, a portion of the end surface of the honeycomb body corresponding to the joint 16 over the entire axial length of the outer peripheral portion of the honeycomb body is formed on the surface of the binder liquid. The contact portion 5 of the flat foil and the corrugated foil is brought into contact with the binder to suck up the binder, and then the wax powder is sprayed on the honeycomb body to apply the brazing material to the adhesive and binder attachment portions. Production method.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属製の平箔と波
箔とを巻き回して積層しロウ付けしたハニカム体、特に
自動車の排気ガス浄化用等に用いられる触媒担持用のメ
タルハニカム体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb body formed by winding and laminating a metal flat foil and a corrugated foil and brazing the same, particularly a metal honeycomb body for supporting a catalyst used for purifying exhaust gas of automobiles. And a method for producing the same.
【０００２】[0002]
【従来の技術】内燃機関の排気ガスを浄化する目的で、
排気ガス経路に触媒を担持した触媒コンバータが配置さ
れる。また、メタノール等の炭化水素化合物を水蒸気改
質して水素リッチなガスを生成するメタノール改質装置
やＣＯをＣＯ2に改質して除去するＣＯ除去装置、ある
いはＨ2をＨ2Ｏに燃焼して除去するＨ2燃焼装置におい
ても、同様に触媒を担持した担体が用いられる。これら
触媒担体は、ガスが通過する多数のセルを有し、各セル
の壁面には触媒がコーティングされ、通過するガスと触
媒とが広い接触面積で接触することが可能になってい
る。2. Description of the Related Art In order to purify exhaust gas of an internal combustion engine,
A catalytic converter carrying a catalyst is arranged in the exhaust gas path. Also, a methanol reformer that produces hydrogen-rich gas by steam reforming hydrocarbon compounds such as methanol, a CO remover that reforms and removes CO into CO 2 , or burns H 2 to H 2 O Similarly, a carrier carrying a catalyst is also used in the H 2 combustion apparatus that removes the catalyst. These catalyst carriers have a large number of cells through which gas passes, and the walls of each cell are coated with a catalyst, so that the passing gas and the catalyst can come into contact with a wide contact area.
【０００３】これらの目的で用いられる触媒担体として
は、セラミックス触媒担体とメタル触媒担体とがある。
メタル触媒担体は、耐熱合金を用いた厚み数十μｍの平
箔と波箔とを交互に巻き回すことによって積層して円筒
形のメタルハニカム体とし、このメタルハニカム体を円
筒形の金属製の外筒に装入してメタル担体とする。この
メタル担体のガス通路となるハニカム体のセルの金属箔
の表面に触媒をしみ込ませた触媒担持層を形成し、触媒
担体とする。平箔と波箔とを巻き回したハニカム体の該
平箔と波箔との接触部は、ロウ付け等の手段によって接
合し、ハニカム体を強度のある構造体とする。[0003] Catalyst carriers used for these purposes include ceramic catalyst carriers and metal catalyst carriers.
The metal catalyst carrier is laminated by winding alternately a flat foil and a corrugated foil having a thickness of several tens μm using a heat-resistant alloy to form a cylindrical metal honeycomb body, and this metal honeycomb body is formed of a cylindrical metal. The metal carrier is charged into the outer cylinder. A catalyst supporting layer in which a catalyst is impregnated is formed on the surface of a metal foil of a cell of a honeycomb body which becomes a gas passage of the metal carrier, and is used as a catalyst carrier. The contact portion between the flat foil and the corrugated foil of the honeycomb body in which the flat foil and the corrugated foil are wound is joined by means such as brazing to make the honeycomb body a strong structure.
【０００４】自動車の排気ガス浄化用の触媒担体におい
ては、加速時あるいは高速運転時に高温の排気ガスが流
入して激しい熱負荷がかかる一方、エンジン停止時ある
いはアイドリング時においては常温ないし比較的低温の
排気ガスが流れるため、高温と低温の熱サイクルを繰り
返すので、触媒担体を構成するハニカム体には過酷な熱
応力・熱疲労に耐える構造信頼性が要求される。In a catalyst carrier for purifying an exhaust gas of an automobile, a high-temperature exhaust gas flows in during acceleration or high-speed operation, and a heavy heat load is applied thereto. Since the exhaust gas flows, a high-temperature and low-temperature thermal cycle is repeated, so that the honeycomb body constituting the catalyst carrier is required to have structural reliability that can withstand severe thermal stress and thermal fatigue.
【０００５】触媒担体が加熱冷却を受けると、担体を構
成するハニカム体の中心とその外周側では大きな温度差
が生じる。中心が加熱されて温度が外周温度よりも高い
ときは、中心部が熱膨張を起こしハニカム体の外周近傍
は圧縮応力を受ける。反対に中心が冷却されて温度が低
くなり外周温度よりも低くなった場合は、中心部が収縮
を起こし外周近傍は引張応力を受ける。いずれの場合
も、外周部近傍に大きな熱応力が発生する。When the catalyst carrier is heated and cooled, a large temperature difference occurs between the center of the honeycomb body constituting the carrier and the outer peripheral side thereof. When the center is heated and the temperature is higher than the outer peripheral temperature, the central portion undergoes thermal expansion, and the vicinity of the outer periphery of the honeycomb body receives compressive stress. Conversely, when the center is cooled and the temperature decreases to become lower than the outer peripheral temperature, the central portion contracts, and the vicinity of the outer periphery receives a tensile stress. In any case, a large thermal stress occurs near the outer peripheral portion.
【０００６】特許第２７３２８８９号公報や特公平５−
４５２９８号公報には、図２（ａ）に示すように、ハニ
カム体外周部１２の軸方向全長にわたる接合部１６につ
いて平箔３と波箔４との接触部を接合し、これによりハ
ニカム体外周近傍に発生する大きな熱応力に対応してハ
ニカム体の破断を防止するとともに、発生する熱応力を
できるだけ小さくする目的で、ハニカム体の内周部１３
（前期外周部１２以外の部分）については軸方向の一部
のみ、より具体的にはハニカム体のガス入り側における
ハニカム体端部の接合部１７のみを接合する発明が記載
されている。特許第２５１２６２２号公報においては、
同様の目的で、図２（ｂ）に示すように、ハニカム体の
軸方向の１箇所のみで軸方向に所定の長さで平箔と波箔
とを接合し（ハニカム体内部の横断面接合部１８）、な
おかつ最外層から内側へ５層以内で軸方向に接合する領
域（ハニカム体外周部の軸方向全長にわたる接合部１
６）を有するハニカム体が開示されている。[0006] Japanese Patent No. 2732889 and Japanese Patent Publication No.
Japanese Patent No. 45298 discloses that, as shown in FIG. 2A, a contact portion between the flat foil 3 and the corrugated foil 4 is joined to a joining portion 16 over the entire length of the honeycomb body outer peripheral portion 12 in the axial direction. In order to prevent breakage of the honeycomb body in response to the large thermal stress generated in the vicinity and to minimize the generated thermal stress, the inner peripheral portion 13 of the honeycomb body is formed.
With respect to (parts other than the outer peripheral portion 12), there is described an invention in which only a portion in the axial direction, more specifically, only the joining portion 17 at the end of the honeycomb body on the gas entry side of the honeycomb body is joined. In Japanese Patent No. 251622,
For the same purpose, as shown in FIG. 2B, the flat foil and the corrugated foil are joined at a predetermined length in the axial direction only at one location in the axial direction of the honeycomb body (cross-section joining inside the honeycomb body). Part 18) and a region to be joined in the axial direction within 5 layers from the outermost layer to the inside (joining portion 1 extending over the entire axial length of the outer peripheral portion of the honeycomb body)
6) is disclosed.
【０００７】自動車エンジンにおいて、エンジン失火時
に未燃ガスがハニカム体の内部で燃焼し、ハニカム体の
内部において箔の温度が箔の融点を超える場合がある。
図２（ａ）に示すようなハニカム体の外周部を除いた部
分においてハニカム体のガス入り側端部のみを接合して
いる上記発明においては、ハニカム体内部において失火
時に箔が溶融すると、ハニカム体内の平箔と波箔とが飛
び出し、飛散してしまうことがある。登実２５４３６３
６号公報においては、図２（ｃ）に示すように、ハニカ
ム体の平箔と波箔との接合が、ガス入り側のハニカム体
端部の接合部１７でなされるとともに、端部からハニカ
ム体軸方向に離れたハニカム体内部の横断面接合部１８
において接合し、外周部近傍はハニカム体外周部の軸方
向全長にわたる接合部１６において接合されるメタル担
体とすることにより、失火時にハニカム体内部で箔の溶
融が発生しても横断面接合部１８によって箔が支えら
れ、ハニカム体の飛び出し・飛散などの不都合を生じな
いメタル担体を開示している。In an automobile engine, when the engine is misfired, unburned gas may burn inside the honeycomb body, and the temperature of the foil inside the honeycomb body may exceed the melting point of the foil.
In the above-described invention in which only the gas-filled end of the honeycomb body is joined except for the outer peripheral portion of the honeycomb body as shown in FIG. 2 (a), if the foil melts at the time of misfire inside the honeycomb body, The flat foil and corrugated foil in the body may fly out and scatter. Noboru 254363
In Japanese Unexamined Patent Publication No. 6 (C), as shown in FIG. 2 (c), the joining of the flat foil and the corrugated foil of the honeycomb body is performed at the joining portion 17 at the end of the honeycomb body on the gas-incoming side, and the honeycomb is formed from the end. Cross-section joint 18 inside the honeycomb body separated in the body axis direction
And the vicinity of the outer peripheral portion is a metal carrier that is joined at a joining portion 16 extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body. Discloses a metal carrier that supports a foil and does not cause inconvenience such as jumping out and scattering of a honeycomb body.
【０００８】ハニカム体を構成する平箔３と波箔４との
接触部のうち、一部分のみをロウ接合する上記発明にお
いては、ロウ接合する部分にのみロウ材を被着し、その
後ハニカム体を高温に加熱してロウを溶融させ、ロウ材
被着部分について平箔と波箔との接触部をロウ接合す
る。In the above-mentioned invention in which only a part of the contact portion between the flat foil 3 and the corrugated foil 4 constituting the honeycomb body is brazed, the brazing material is applied only to the brazing part, and then the honeycomb body is bonded. The brazing material is heated to a high temperature to melt the brazing material, and the contact portion between the flat foil and the corrugated foil is brazed to the brazing material-applied portion.
【０００９】平箔又は波箔のうち部分的にロウ材を被着
する方法として、特表平３−５０１３６３号公報におい
ては、平箔と波箔とを巻き回す前に、平箔又は波箔の後
にロウ付けすべき部分に接着剤又は接合材を塗布し、次
いで平箔と波箔とを巻き回し、巻き上げた担体にロウ粉
末を送り込むことによりロウ粉末を接着剤塗布部分に付
着残留させる方法が開示されている。As a method of partially applying a brazing material to a flat foil or a corrugated foil, Japanese Patent Application Laid-Open No. 3-501363 discloses a method in which a flat foil or a corrugated foil is wound before the flat foil and the corrugated foil are wound. A method of applying an adhesive or a bonding material to a portion to be brazed after that, then winding a flat foil and a corrugated foil, and sending the wax powder to the rolled-up carrier so that the wax powder adheres to the adhesive applied portion and remains. Is disclosed.
【００１０】平箔又は波箔の後にロウ付けすべき部分に
接着剤を塗布するための方法として、特開昭５６−４３
７３号公報においては、接着剤の貯蔵容器からロールの
表面に接着剤を供給し、次いでこのロールを介して平板
や波板の表面に接着剤を塗り付ける方法が開示されてい
る。Japanese Patent Application Laid-Open No. Sho 56-43 discloses a method for applying an adhesive to a portion to be brazed after a flat or corrugated foil.
No. 73 discloses a method in which an adhesive is supplied to the surface of a roll from an adhesive storage container, and then the adhesive is applied to the surface of a flat plate or a corrugated sheet via the roll.
【００１１】ハニカム体の平箔と波箔との接触部におい
ては、平箔と波箔とは極めて鋭角の接触部を形成してい
る。また、ハニカム体の端面にはこの平箔と波箔との接
触部が露出している。金属箔との濡れ性が良好でかつ低
粘度の液体をハニカム体の端面においてハニカム体と接
触させると、液体は毛細管現象によって平箔と波箔との
接触部に吸い上げられる。特許第２５４８７９６号公報
においては、この毛細管現象を利用し、ハニカム体軸方
向の端面を接着剤液表面に接触させて波箔と平箔との接
触部に接着剤を吸い上げさせ、そののちにロウ材粉末を
散布して該接触部の接着剤付着部にロウ材を被着させる
ことを特徴とするハニカム体のロウ付け方法が開示され
ている。この方法によれば、平箔と波箔の接触部だけに
接着剤が吸い上げられ、接触部以外の部分には接着剤は
付着しない。そのためロウ材の使用量も最小限で済み、
ロウ食等の不具合が生ずることもない。In the contact portion between the flat foil and the corrugated foil of the honeycomb body, the flat foil and the corrugated foil form an extremely acute contact portion. Further, a contact portion between the flat foil and the corrugated foil is exposed on the end face of the honeycomb body. When a liquid having good wettability with the metal foil and having a low viscosity is brought into contact with the honeycomb body at the end face of the honeycomb body, the liquid is sucked up into a contact portion between the flat foil and the corrugated foil by capillary action. In Japanese Patent No. 2548796, by utilizing this capillary phenomenon, the end face in the axial direction of the honeycomb body is brought into contact with the surface of the adhesive liquid to cause the contact portion between the corrugated foil and the flat foil to suck up the adhesive, and then the brazing is performed. There has been disclosed a method of brazing a honeycomb body, characterized in that a material powder is sprayed and a brazing material is applied to an adhesive attachment portion of the contact portion. According to this method, the adhesive is sucked up only at the contact portion between the flat foil and the corrugated foil, and the adhesive does not adhere to portions other than the contact portion. Therefore, the amount of brazing material used is minimal,
Problems such as waxing do not occur.
【００１２】米国特許第５０８２１６７号公報には、ハ
ニカム体を円環状吸上げ基材に載置してハニカム体外周
部の軸方向全長に接着剤を吸い上げ、次いで前記円環状
吸上げ基材の内周面に接する外周を有する円筒状吸上げ
基材にハニカム体を載置してハニカム体の端部にのみ接
着剤を吸い上げる方法が開示されている。この方法によ
れば、接着剤の吸上げ方法によって、ハニカム体の外周
部についてはハニカム体軸方向の全長をロウ付けし、ハ
ニカム体の内周部についてはハニカム体の端部のみをロ
ウ付けすることができる。[0012] US Patent No. 5,082,167 discloses that a honeycomb body is placed on an annular suction base material, an adhesive is sucked up over the entire length of the outer periphery of the honeycomb body in the axial direction, and then the inside of the annular suction base material is removed. A method is disclosed in which a honeycomb body is placed on a cylindrical suction base material having an outer periphery in contact with a peripheral surface, and an adhesive is sucked only at an end portion of the honeycomb body. According to this method, the entire length in the axial direction of the honeycomb body is brazed to the outer peripheral portion of the honeycomb body, and only the end portion of the honeycomb body is brazed to the inner peripheral portion of the honeycomb body by a method of sucking up the adhesive. be able to.
【００１３】[0013]
【発明が解決しようとする課題】ハニカム体の外周部に
ついては軸方向の全長について接合を行い、内周部につ
いてはハニカム体の端部及び／又はハニカム体の内部の
１横断面について接合を行うことにより、触媒担体に負
荷される熱負荷や熱応力に耐える構造信頼性を実現し、
更にはエンジン失火時においても破損することのないハ
ニカム体を提供することができる。The outer peripheral portion of the honeycomb body is joined to the entire length in the axial direction, and the inner peripheral portion is joined to the end portion of the honeycomb body and / or one cross section inside the honeycomb body. This achieves structural reliability to withstand the thermal load and thermal stress applied to the catalyst support,
Further, it is possible to provide a honeycomb body that is not damaged even when an engine misfires.
【００１４】ハニカム体として巻き回す前の波箔の波頂
部に接着剤を塗布し、次いで平箔と波箔とを巻き回した
後にロウ粉末を散布してロウ材を塗布する方法が用いら
れている。表面に接着剤を塗布した２本のロールを間隔
をおいて対置させ、その間に波箔を通過させて波箔の波
頂部にロール表面を接触させることによって波箔の波頂
部に接着剤を塗布する。この方法においては、対置する
２本のロール間隔がわずかでも広すぎると、ロール表面
と波頂部とが接触しない部分が生じることがあり、この
部分はロウ接合がなされないので接合不良となって構造
体の強度や信頼性を損なうこととなる。逆に対置する２
本のロール間隔がわずかでも狭すぎると、波板の波頂部
に必要以上の広い範囲にわたって接着剤が塗布され、ロ
ウ粉末は接着剤塗布部分の全体に被着するので、ロウ材
の使用量が増大するとともに、ハニカム体を構成する金
属箔の広い部分がロウ材を構成する金属によって合金化
され、金属箔の機械的強度を低下させることとなって好
ましくない。A method is used in which an adhesive is applied to the crest of the corrugated foil before winding as a honeycomb body, and then the flat foil and corrugated foil are wound, and then a brazing powder is sprayed to apply a brazing material. I have. Two rolls with the adhesive applied to the surface are opposed to each other at an interval, and the adhesive is applied to the crest of the corrugated foil by allowing the corrugated foil to pass between them and bringing the roll surface into contact with the crest of the corrugated foil. I do. In this method, if the interval between two opposing rolls is slightly too large, a portion where the roll surface does not come into contact with the crest may occur, and since this portion is not brazed, poor bonding may occur. Body strength and reliability will be impaired. Opposite 2
If the gap between the rolls is slightly too small, the adhesive is applied to the crest of the corrugated sheet over an unnecessarily wide range, and the brazing powder is applied to the entire area where the adhesive is applied. Along with the increase, a wide portion of the metal foil forming the honeycomb body is alloyed with the metal forming the brazing material, which undesirably lowers the mechanical strength of the metal foil.
【００１５】ハニカム体の製造に用いられる波箔は、平
箔に波付け塑性加工を施すことによって製造される。こ
の塑性加工を行った結果として、波箔の表面に湾曲が生
じることがある。例えば波箔頂部が箔幅方向に湾曲す
る。ハニカム体外周部の軸方向全長接合部位について、
上記のように対置する２本のロールによって波箔の波頂
部に接着剤を塗布する方法を採用した場合、このような
湾曲が生じた波箔に接着剤を塗布すると、波箔の湾曲凹
面側については箔の幅方向中央部の接着剤塗布が不十分
となり、箔の幅方向両側は接着剤塗布が過剰となる。逆
に波箔の湾曲凸面側については箔の幅方向中央部の接着
剤塗布が過剰となり、箔の幅方向両側は接着剤塗布が不
十分となる。The corrugated foil used for manufacturing the honeycomb body is manufactured by corrugating and plasticizing a flat foil. As a result of performing this plastic working, the surface of the corrugated foil may be curved. For example, the corrugated foil top is curved in the foil width direction. Regarding the entire axial joining portion of the outer peripheral portion of the honeycomb body,
When the adhesive is applied to the crest of the corrugated foil by the two rolls facing each other as described above, when the adhesive is applied to the corrugated foil having such a curvature, the curved concave side of the corrugated foil is applied. With regard to (1), the adhesive application at the center in the width direction of the foil becomes insufficient, and the adhesive application becomes excessive on both sides in the width direction of the foil. Conversely, on the curved convex side of the corrugated foil, the adhesive is applied excessively at the center in the width direction of the foil, and the adhesive is insufficiently applied on both sides in the width direction of the foil.
【００１６】ハニカム体の外周部については軸方向全長
に接着剤を塗布するので、そのための接着剤塗布ロール
を準備する必要がある。また、ハニカム体の内周部は端
部及び又は内部の横断面に接着剤を塗布するので、その
ための接着剤塗布ロールを準備する必要がある。結局、
ロール塗布方法によって接着剤を塗布する方法では、複
数のロールを準備することが必要となり、ハニカム体製
造装置の設備費を高くする原因となっていた。Since the adhesive is applied to the entire outer peripheral portion of the honeycomb body in the axial direction, it is necessary to prepare an adhesive applying roll for that purpose. Further, since an adhesive is applied to the inner peripheral portion of the honeycomb body at the end portion and / or the internal cross section, it is necessary to prepare an adhesive applying roll for that purpose. After all,
In the method of applying the adhesive by the roll application method, it is necessary to prepare a plurality of rolls, which causes an increase in equipment cost of the honeycomb body manufacturing apparatus.
【００１７】ハニカム体の端面から接着剤を吸い上げる
方法においては、ハニカム体内部の横断面にのみ接着剤
を塗布することが不可能であり、失火対策を講じたハニ
カム体の製造に用いることができなかった。In the method of sucking up the adhesive from the end face of the honeycomb body, it is impossible to apply the adhesive only to the cross section inside the honeycomb body, and it can be used for manufacturing a honeycomb body with measures against misfiring. Did not.
【００１８】本発明は、金属製の平箔と波箔とを巻き回
して積層しロウ付けしたハニカム体であって、該ハニカ
ム体の平箔と波箔とのロウ接合部位については、ハニカ
ム体の外周部１層以上については軸方向に全長にわたっ
て接合され、ハニカム体の端部及び／又は端部から軸方
向に離れたハニカム体内部の横断面において接合されて
いるハニカム体の製造方法において、ロールによる接着
剤の塗布に見られる塗布不良や塗布範囲の増大を起こす
ことなく、ハニカム体製造装置の設備費を安価にし、ハ
ニカム体の失火対策も講じることのできる、製造方法を
提供することを目的とする。The present invention relates to a honeycomb body in which a flat metal foil and a corrugated foil are wound, laminated, and brazed, and the honeycomb joint portion between the flat foil and the corrugated foil is formed of a honeycomb body. The method for manufacturing a honeycomb body, wherein at least one outer peripheral layer of the honeycomb body is joined over the entire length in the axial direction and joined at the end of the honeycomb body and / or a cross section inside the honeycomb body separated from the end in the axial direction, Provided is a manufacturing method capable of reducing the equipment cost of a honeycomb body manufacturing apparatus and taking measures against misfiring of a honeycomb body without causing a coating failure and an increase in a coating range observed in the application of an adhesive by a roll. Aim.
【００１９】[0019]
【課題を解決するための手段】即ち、本発明の要旨とす
るところは以下のとおりである。（１）〜（７）欠。 （８）金属製の平箔３と波箔４とを巻き回して積層しロ
ウ付けしたハニカム体であって、該ハニカム体の平箔と
波箔とのロウ接合部位については、ハニカム体外周部の
軸方向全長にわたる接合部２０、ハニカム体端部の接合
部１７及び／又は端部から軸方向に離れたハニカム体内
部の横断面接合部１８において接合されているハニカム
体の製造方法において、 （ａ）平箔又は波箔のロウ接合すべき部分であって前記
ハニカム体端部から軸方向に離れたハニカム体内部の横
断面接合部１８に対応する部分及びハニカム体外周部の
軸方向全長にわたる接合部２０のうちのガス入り側端部
を除く部分２０ａに接着剤２６を塗布し、接着剤２６の
塗布は、表面に接着剤２６を被着したロールを平箔又は
波箔に接触させることによって行い、併せてハニカム体
内周部の箔の表面に吸い上がり防止剤を塗布し、該吸い
上がり防止剤塗布部３５はガス入り側のハニカム体端部
の接合部１７を形成する部分の軸方向内側に、かつこれ
に隣接して設けられ、 （ｂ）次いで平箔３と波箔４とを巻き回してハニカム体
形状とし、 （ｃ）さらにハニカム体のガス入り側端面９を接着剤３
３液表面に接触させて前記平箔と波箔の接触部５に接着
剤３３を吸い上げさせて、ハニカム体外周部の軸方向全
長にわたる接合部のうちのガス入り側端部の部分２０ｂ
とハニカム体端部の接合部１７に接着剤３３を付着し、 （ｄ）その後にロウ粉末をハニカム体に散布して接着剤
（２６、３３）付着部にロウ材を被着することを特徴と
するハニカム体の製造方法。 （９）前記ハニカム体外周部の軸方向全長にわたる接合
部１６は、ハニカム体の最外周部から内周側へ半径の１
／３長さまでの領域であることを特徴とする上記（８）
に記載のハニカム体の製造方法。 （１０）前記平箔３又は波箔４の接着剤２６を塗布する
部分は、波箔４の波頂部６であることを特徴とする上記
（８）又は（９）に記載のハニカム体の製造方法。（１１）欠。 （１２）前記吸い上げに用いる接着剤３３液の粘度は前
記塗布に用いる接着剤２６の粘度よりも低粘度であるこ
とを特徴とする上記（８）乃至（１０）のいずれかに記
載のハニカム体の製造方法。（１３）欠。 （１４）平箔３はコルゲート形状１４を有し、コルゲー
ト形状１４の波高さは波箔４の波高さよりも小さいこと
を特徴とする上記（８）乃至（１２）のいずれかに記載
のハニカム体の製造方法。That is, the gist of the present invention is as follows.
Are as follows:(1)-(7) Missing. (8) The metal flat foil 3 and the corrugated foil 4 are wound and laminated, and
A honeycomb body with a flat foil of the honeycomb body;
Regarding the brazing joint with the corrugated foil,
Joining of the joint 20 over the entire length in the axial direction and the end of the honeycomb body
Honeycomb body axially away from part 17 and / or end
Honeycomb joined at the cross-section joint 18 of the part
(A) a part of a flat foil or a corrugated foil to be brazed,
Lateral inside the honeycomb body that is axially away from the end of the honeycomb body
The portion corresponding to the cross-section joint 18 and the outer peripheral portion of the honeycomb body
Gas-filled end of joint 20 over the entire axial length
The adhesive 26 is applied to the portion 20a excludingAdhesive 26
Coating is performed by flat roll or roll with adhesive 26 applied on the surface.
It is performed by contacting with corrugated foil,
An anti-wicking agent is applied to the inner surface of the foil,
The rising prevention agent application section 35 is located at the end of the honeycomb body on the gas entry side.
Axially inward of the portion forming the joint 17 of
Provided adjacent to the (B) Next, the flat foil 3 and the corrugated foil 4 are wound to form a honeycomb body
(C) Further, the gas-filled end surface 9 of the honeycomb body is
3 Contact with the liquid surface and adhere to the contact part 5 between the flat foil and corrugated foil
The agent 33 is sucked up, and the entirety of the outer peripheral portion of the honeycomb body in the axial direction is
Gas-filled end portion 20b of the long joint
And an adhesive 33 is applied to the joint portion 17 at the end of the honeycomb body.
(26, 33) characterized in that a brazing material is applied to the attachment portion.
Of manufacturing a honeycomb body. (9) Joining of the outer peripheral portion of the honeycomb body over the entire length in the axial direction
The portion 16 has a radius of 1 from the outermost peripheral portion to the inner peripheral side of the honeycomb body.
(8) characterized in that the area is up to / 3 length.
3. The method for manufacturing a honeycomb body according to item 1. (10) Apply the adhesive 26 of the flat foil 3 or corrugated foil 4
The portion is the crest 6 of the corrugated foil 4
(8) The method for producing a honeycomb body according to (9).(11) Missing. (12) The viscosity of the adhesive 33 liquid used for sucking is as described above.
The viscosity must be lower than the viscosity of the adhesive 26 used for coating.
Described in any of (8) to (10) above,
Manufacturing method of the above-mentioned honeycomb body.(13) Missing. (14) The flat foil 3 has a corrugated shape 14,
The wave height of the shape 14 is smaller than the wave height of the corrugated foil 4.
Any of (8) to (12) above,
A method for manufacturing a honeycomb body.
【００２０】[0020]
【発明の実施の形態】本発明は、金属製の平箔３と波箔
４とを巻き回して積層しロウ付けしたハニカム体１を対
象とする。ハニカム体１の形状としては、軸の周りに平
箔３と波箔４とを巻きまわして積層した円筒形状のも
の、あるいは中心部に円筒状の空洞を設けた上で平箔と
波箔とを巻きまわし、そののちに該空洞部を押しつぶす
ことによって外形をレーストラック状としたものも含
む。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is directed to a honeycomb body 1 in which a metal flat foil 3 and a corrugated foil 4 are wound, laminated and brazed. The shape of the honeycomb body 1 is a cylindrical shape in which a flat foil 3 and a corrugated foil 4 are wound around an axis and laminated, or a flat hollow and a corrugated foil provided with a cylindrical cavity in the center. And then crushing the cavity to form a race-track outer shape.
【００２１】平箔３と波箔４とを巻きまわして積層する
理由は、積層することによって波箔の波１波長部分と平
箔とで囲まれて形成されるセルを排気ガスの流通経路と
する点にある。このようなセルが形成されれば目的を達
するのであって、平箔３は完全に平坦であることは必要
でなく、本発明の上記（１４）にあるようにコルゲート
形状１４を有する箔も本発明の平箔３に含まれることは
当然である。The reason why the flat foil 3 and the corrugated foil 4 are wound and laminated is that, by laminating, the cell formed by the one-wavelength portion of the corrugated foil and the flat foil is used as an exhaust gas flow path. Is to do. If such a cell is formed, the purpose is achieved, and the flat foil 3 does not need to be completely flat, and the foil having the corrugated shape 14 as described in the above (14) of the present invention can be used. Naturally, it is included in the flat foil 3 of the invention.
【００２２】ハニカム体１の平箔３と波箔４とのロウ接
合部位は以下のとおりである。ハニカム体の外周部近傍
については、外周部の巻き回した金属箔１層以上の範囲
についてハニカム体外周部１２の軸方向全長にわたる接
合部１６において接合される。前記外周部１２（軸方向
全長を接合した部分）を除く部分であるハニカム体の内
周部１３については、ハニカム体端部の接合部１７（ガ
ス入り側端部、ガス出側端部、又はその両方）及び／又
は端部から軸方向に離れたハニカム体内部の横断面接合
部１８において接合されている。図２（ａ）はハニカム
体外周部の軸方向全長にわたる接合部１６及びハニカム
体ガス入り側端部の接合部１７を有し、図２（ｂ）はハ
ニカム体外周部の軸方向全長にわたる接合部１６及びハ
ニカム体内部の横断面接合部１８を有し、図２（ｃ）は
ハニカム体外周部の軸方向全長にわたる接合部１６、ハ
ニカム体ガス入り側端部の接合部１７及びハニカム体内
部の横断面接合部１８を有し、図２（ｄ）はハニカム体
外周部の軸方向全長にわたる接合部１６、ハニカム体ガ
ス入り側端部の接合部１７及びハニカム体ガス出側端部
の接合部１７を有する場合を図示したものである。The brazing portions between the flat foil 3 and the corrugated foil 4 of the honeycomb body 1 are as follows. In the vicinity of the outer peripheral portion of the honeycomb body, the outer peripheral portion is joined at a joining portion 16 extending over the entire axial length of the outer peripheral portion 12 of the honeycomb body in a range of one or more layers of the wound metal foil. Regarding the inner peripheral portion 13 of the honeycomb body, which is a portion excluding the outer peripheral portion 12 (the portion where the entire length in the axial direction is joined), the joining portion 17 at the end of the honeycomb body (the gas-entering end, the gas-outlet end, or (Both of them) and / or at the cross-section joint 18 inside the honeycomb body, which is axially away from the end. FIG. 2A has a joining portion 16 over the entire length of the outer periphery of the honeycomb body in the axial direction and a joining portion 17 at the gas-filled side end of the honeycomb body. FIG. 2B shows the joining over the entire length of the outer periphery of the honeycomb body in the axial direction. FIG. 2C shows a joining portion 16 extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body, a joining portion 17 of the honeycomb-containing gas-side end portion, and the inside of the honeycomb body. FIG. 2 (d) shows a joining portion 16 extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body, a joining portion 17 at the gas-entering end portion of the honeycomb body, and a joining portion at the gas-outward end portion of the honeycomb body. FIG. 3 illustrates a case having a portion 17.
【００２３】ハニカム体の外周部１２については軸方向
全長を接合しているので、ハニカム体外周近傍に発生す
る大きな熱応力に対応してハニカム体の破断を防止して
いる。ハニカム体の内周部１３（外周部１２を除く部
分）については、ハニカム体の端部又は軸方向に離れた
ハニカム体内部の横断面においてハニカム体の半径方向
全体を接合しており、この内周部１３においては軸方向
の一部のみが接合されているので、ハニカム体内部に発
生する熱応力を小さくすることができる。ハニカム体の
ガス入り側端部を接合する場合において、同時にハニカ
ム体内部の横断面又はガス出側端部においても接合する
ことにより、エンジン失火時においてもハニカム体の接
合部が切り離される現象を防止することができる。Since the outer peripheral portion 12 of the honeycomb body is joined to the entire length in the axial direction, breakage of the honeycomb body is prevented in response to a large thermal stress generated near the outer periphery of the honeycomb body. As for the inner peripheral portion 13 (excluding the outer peripheral portion 12) of the honeycomb body, the entire radial direction of the honeycomb body is joined at an end portion of the honeycomb body or a cross section inside the honeycomb body separated in the axial direction. Since only a part of the peripheral portion 13 is joined in the axial direction, the thermal stress generated inside the honeycomb body can be reduced. When joining the gas-filled end of the honeycomb body, the joint is also made at the cross-section inside the honeycomb body or the gas-outside end at the same time, preventing the phenomenon that the joined part of the honeycomb body is cut off even when the engine misfires can do.
【００２４】ハニカム体外周部の軸方向全長にわたる接
合部１６は、上記（２）のように、ハニカム体の最外周
部から内周側へ半径の１／３長さまでの領域とすると好
ましい。軸方向全長にわたる接合部が内周側へ半径の１
／３長さを超えると、内周部において発生する熱応力を
十分に緩和することができなくなる。The joining portion 16 extending over the entire length of the outer peripheral portion of the honeycomb body in the axial direction is preferably a region extending from the outermost peripheral portion of the honeycomb body to the inner peripheral side up to a length of 半径 of the radius as described in (2) above. The joint over the entire length in the axial direction has a radius of 1
When the length exceeds / 3, the thermal stress generated in the inner peripheral portion cannot be sufficiently reduced.
【００２５】ハニカム体端部の接合部１７（ガス入り側
端部、ガス出側端部、又はその両方）のロウ付けや、端
部から軸方向に離れたハニカム体内部の横断面接合部１
８のロウ付けについては、平箔３と波箔４とを巻き回す
前に、平箔３又は波箔４のロウ接合すべき部分に接着剤
２６を塗布する。図３は平箔３に接着剤２６を塗布する
場合を示し、図４、５は波箔４の波頂部６に接着剤２６
を塗布する場合を示す。平箔３に接着剤２６を塗布する
場合は、平箔と波箔との非接触部であって触媒を担持す
る部分にも接着剤２６が塗布され、この部分にもロウ粉
末が被着するので、ロウ材を過剰に消費することとな
り、更にロウが被着した平箔の部分はロウ材成分によっ
て合金化し、平箔３の機械的強度に影響を及ぼすことが
ある。一方、上記発明（３）のように波箔４の波頂部６
に接着剤２６を塗布する場合は、平箔と波箔の接触部５
のみに接着剤２６が塗布されるので、ロウ材の被着部分
も平箔と波箔の接触部５に限定されるのでより好まし
い。The joining portion 17 at the end of the honeycomb body (the gas-incoming end, the gas-outgoing end, or both) is brazed, and the cross-sectional joining portion 1 inside the honeycomb body, which is axially away from the end, is provided.
For brazing 8, before winding the flat foil 3 and the corrugated foil 4, an adhesive 26 is applied to a portion of the flat foil 3 or the corrugated foil 4 to be brazed. FIG. 3 shows a case where the adhesive 26 is applied to the flat foil 3, and FIGS.
Is shown. When the adhesive 26 is applied to the flat foil 3, the adhesive 26 is also applied to a portion that does not contact the flat foil and the corrugated foil and that carries the catalyst, and the wax powder is also applied to this portion. Therefore, the brazing material is excessively consumed, and the portion of the flat foil to which the brazing is applied is alloyed by the brazing material component, which may affect the mechanical strength of the flat foil 3. On the other hand, as in the invention (3), the crest 6
When the adhesive 26 is applied to the flat foil and the corrugated foil,
Since the adhesive 26 is applied only to the adhesive, the portion where the brazing material is applied is also limited to the contact portion 5 between the flat foil and the corrugated foil, which is more preferable.
【００２６】平箔３又は波箔４表面への接着剤２６の塗
布については、上記（４）のように、表面に接着剤２６
を被着したロールを平箔又は波箔に接触させることによ
って行うと好ましい。波箔４の波頂部６に接着剤２６を
塗布する場合を例にとって図４に基づいて説明する。２
本の接着剤塗布ロール（２１ａ、２１ｂ）を間隔をおい
て対置させ、その間に波箔４を通過させる。各接着剤塗
布ロール２１に対応して接着剤貯槽２２を配置する。図
４に示す例では、接着剤貯槽２２と接着剤塗布ロール２
１の間に第２ロール２３、第３ロール２４を配置し、接
着剤塗布ロール２１の回転に伴って第２ロール２３、第
３ロール２４も回転する。第３ロール２４の一部が接着
剤貯槽２２の接着剤２６中に浸漬し、ロールの回転に伴
って第３ロール表面に接着剤２６が塗布される。第３ロ
ール表面の接着剤２６はロールの回転に伴って第２ロー
ル表面に転写され、更に第２ロール表面の接着剤２６は
接着剤塗布ロールの表面に転写され、最終的に接着剤塗
布ロール表面の接着剤２６が、２本の接着剤塗布ロール
の間を通過する波箔の波頂部６に転写される。第２ロー
ル２３、第３ロール２４については、必要に応じて省略
することができる。対向する１対の接着剤塗布ロール及
び第２、第３ロール、接着剤貯槽の全体で、接着剤塗布
装置２５を構成する。As for the application of the adhesive 26 to the surface of the flat foil 3 or the corrugated foil 4, the adhesive 26 is applied to the surface as described in the above (4).
Is preferably carried out by contacting the roll with the contact with a flat foil or a corrugated foil. An example in which the adhesive 26 is applied to the crest 6 of the corrugated foil 4 will be described with reference to FIG. 2
The adhesive coating rolls (21 a, 21 b) are opposed to each other at intervals, and the corrugated foil 4 is passed therebetween. An adhesive storage tank 22 is arranged corresponding to each adhesive application roll 21. In the example shown in FIG. 4, the adhesive storage tank 22 and the adhesive application roll 2
The second roll 23 and the third roll 24 are disposed between the first roll 1 and the second roll 23 and the third roll 24 also rotate with the rotation of the adhesive coating roll 21. Part of the third roll 24 is immersed in the adhesive 26 in the adhesive storage tank 22, and the adhesive 26 is applied to the surface of the third roll as the roll rotates. The adhesive 26 on the third roll surface is transferred to the second roll surface with the rotation of the roll, and the adhesive 26 on the second roll surface is transferred to the surface of the adhesive application roll, and finally the adhesive application roll The adhesive 26 on the surface is transferred to the crest 6 of the corrugated foil passing between the two adhesive application rolls. The second roll 23 and the third roll 24 can be omitted as necessary. The pair of opposing adhesive application rolls, the second and third rolls, and the entire adhesive storage tank constitute an adhesive application device 25.
【００２７】接着剤塗布部位としてハニカム体のガス入
り側端部の接合部１７及び端部から軸方向に離れたハニ
カム体内部の横断面接合部１８の２つの部位における波
頂部６に接着剤２６を塗布する場合について図５に基づ
いて説明する。波箔の幅方向端部でハニカム体端部の接
合部１７に相当する端部２７に接着剤２６を塗布するた
めの１対の接着剤塗布ロール（２１ａ、２１ｂ）とそれ
に付随する接着剤塗布装置を配置する。更に、波箔の幅
方向内部であってハニカム体内部の横断面接合部１８に
相当する内部２８に接着剤２６を塗布するための１対の
接着剤塗布ロール（２１ｃ、２１ｄ）とそれに付随する
接着剤塗布装置を配置する。図５では２１ａと２１ｄの
ロールは図示していない。The adhesive 26 is applied to the crests 6 at two portions, that is, a bonding portion 17 at the gas-filled end of the honeycomb body and a cross-sectional bonding portion 18 inside the honeycomb body at an axial direction away from the end portion. The case of applying is described with reference to FIG. A pair of adhesive application rolls (21a, 21b) for applying an adhesive 26 to an end 27 corresponding to the joint 17 of the end of the honeycomb body at the width direction end of the corrugated foil, and an adhesive applied thereto Place the device. Further, a pair of adhesive application rolls (21c, 21d) for applying the adhesive 26 to the inside 28 of the corrugated foil in the width direction and corresponding to the cross-section joint 18 inside the honeycomb body, and a pair thereof Arrange the adhesive application device. In FIG. 5, the rolls 21a and 21d are not shown.
【００２８】平箔３又は波箔４に接着剤２６を塗布した
後、図６に示すように平箔３と波箔４とを巻き回してハ
ニカム体１の形状とする。この段階で金属製の外筒２の
中にハニカム体１をはめ込み、メタル担体としても良
い。After the adhesive 26 is applied to the flat foil 3 or the corrugated foil 4, the flat foil 3 and the corrugated foil 4 are wound into the shape of the honeycomb body 1 as shown in FIG. At this stage, the honeycomb body 1 may be fitted into the metal outer cylinder 2 to serve as a metal carrier.
【００２９】ハニカム体外周部の軸方向全長にわたる接
合部１６については、接着剤３３吸上げ方法を採用す
る。平箔と波箔とを巻き回したハニカム体１の一方の端
面において、該端面の一部分を接着剤３３液表面に接触
させる。接着剤３３液に接触させる部分は、端面のうち
前記ハニカム体外周部の軸方向全長にわる接合部１６に
対応する部分である。ハニカム体の端面には平箔と波箔
との接触部５が露出しているので、接着剤３３はこの接
触部に触れる。平箔と波箔とは極めて鋭角の接触部を形
成しているので、接着剤３３液は表面張力によって平箔
と波箔の接触部５に吸い上げられ、接着剤３３液と接触
する一方の端面から、ハニカム体の他方の端面までの軸
方向全長にわたり、図７に示すようにハニカム体の平箔
３と波箔４との接触部５に接着剤３３が行き渡ることと
なる。For the joint 16 over the entire length of the outer peripheral portion of the honeycomb body in the axial direction, a method of sucking the adhesive 33 is adopted. At one end face of the honeycomb body 1 in which the flat foil and the corrugated foil are wound, a part of the end face is brought into contact with the surface of the adhesive 33 liquid. The portion to be brought into contact with the adhesive 33 liquid is a portion of the end surface corresponding to the joining portion 16 along the entire axial length of the outer peripheral portion of the honeycomb body. Since the contact portion 5 between the flat foil and the corrugated foil is exposed at the end face of the honeycomb body, the adhesive 33 touches this contact portion. Since the flat foil and the corrugated foil form an extremely sharp contact portion, the adhesive 33 liquid is sucked up by the surface tension at the contact portion 5 between the flat foil and the corrugated foil, and one end face of the flat foil and the corrugated foil comes into contact with the adhesive 33 liquid. 7, the adhesive 33 spreads over the entire length in the axial direction from the other end surface of the honeycomb body to the contact portion 5 between the flat foil 3 and the corrugated foil 4 of the honeycomb body as shown in FIG.
【００３０】上記のように、ハニカム体外周部の軸方向
全長にわたる接合部１６については接着剤３３吸上げ方
法を採用しているので、従来のような対置する２本のロ
ールを用いて波箔の波頂部に接着剤を塗布する方法と異
なり、接着剤の塗布状況を均一にすることができ、ろう
粉末の使用量を削減するとともに、ハニカム体を構成す
る金属箔の合金化される部分を極小化することができ
る。また、巻き回す前の波箔表面に湾曲が生じている場
合であっても、平箔と波箔とを巻き回した後は箔の弾性
変形によって両者の接触は緊密になるので、本発明の吸
い上げ方法による接着剤塗布はいずれの接触部において
も均一に行うことができ、ロールによる接着剤塗布の場
合に見られたような接着剤塗布不良は発生しない。As described above, the bonding portion 16 extending over the entire length of the outer peripheral portion of the honeycomb body in the axial direction employs the adhesive 33 suction method, so that the corrugated foil is formed by using two opposed rolls as in the related art. Unlike the method of applying an adhesive to the crests, the application state of the adhesive can be made uniform, the amount of brazing powder used can be reduced, and the alloyed portion of the metal foil constituting the honeycomb body can be reduced. It can be minimized. Further, even if the surface of the corrugated foil is curved before being wound, even after the flat foil and the corrugated foil are wound, the contact between the flat foil and the corrugated foil becomes tight due to the elastic deformation of the foil. Adhesive application by the suction method can be performed uniformly at any of the contact portions, and the adhesive application failure as seen in the case of the adhesive application by a roll does not occur.
【００３１】ハニカム体端面と接着剤３３液との接触
は、ハニカム体軸方向に全長にわたって接合すべきハニ
カム体の外周部１２のみにおいて行わなければならな
い。本発明の上記（５）においては、多孔体３１に接着
剤３３液を浸透させ、該接着剤３３液が浸透した多孔体
３１を、ハニカム体端面のうち前記ハニカム体軸方向に
全長にわたって接合すべき部位に対応する部分に接触さ
せることによって、平箔と波箔との接触部に接着剤３３
を吸い上げさせることができる。多孔体３１には、スポ
ンジや海綿体のような多孔質弾性体、金属製多孔体、セ
ラミックス製多孔体等が含まれる。The contact between the end face of the honeycomb body and the adhesive 33 must be performed only at the outer peripheral portion 12 of the honeycomb body to be joined over the entire length in the axial direction of the honeycomb body. In the above (5) of the present invention, the adhesive 33 liquid is made to permeate the porous body 31, and the porous body 31 in which the adhesive 33 liquid has permeated is joined over the entire length of the end face of the honeycomb body in the axial direction of the honeycomb body. The contact between the flat foil and the corrugated foil is performed by bringing the adhesive
Can be sucked up. The porous body 31 includes a porous elastic body such as a sponge and a sponge body, a metal porous body, a ceramic porous body, and the like.
【００３２】具体的には、上記（６）のように、多孔体
２１を図８（ｂ）に示す円環状の形状とし、その円環の
内径を、ハニカム体の外周部接合部１６の最も内周側の
直径と等しくすることによって実現することができる。
円環状の形状の外径は、ハニカム体１の外径と等しいか
それよりも大きな外径とする。この円環状の多孔体３１
を接着剤液貯槽３２に配置して多孔体３１に接着剤３３
を浸透させる。図８（ａ）に示すように多孔体３１とハ
ニカム体１とを同軸に接近させ接触させることにより、
ハニカム体の端面と接着剤３３液とが接触することとな
る。ハニカム体１がレーストラック形状の場合には、多
孔体３１の形状もこれにあわせたレーストラック形状と
する。Specifically, as shown in the above (6), the porous body 21 is formed into an annular shape as shown in FIG. 8B, and the inner diameter of the annular body is set to the most of the outer peripheral joining portion 16 of the honeycomb body. This can be realized by making the diameter equal to the inner diameter.
The outer diameter of the annular shape is equal to or larger than the outer diameter of the honeycomb body 1. This annular porous body 31
Is disposed in the adhesive liquid storage tank 32 and the adhesive 33 is attached to the porous body 31.
Infiltrate. As shown in FIG. 8A, the porous body 31 and the honeycomb body 1 are brought close to and coaxial with each other,
The end face of the honeycomb body comes into contact with the adhesive 33 liquid. When the honeycomb body 1 has a racetrack shape, the shape of the porous body 31 is also a racetrack shape according to this.
【００３３】図９に示すように多孔体３１を円盤状の形
状とし、該多孔体３１の上に遮蔽板３４を配置してもよ
い。遮蔽板３４の外径を、ハニカム体の外周部接合部１
６の最も内周側の直径と等しくする。遮蔽板３４を配置
した多孔体３１の上に、遮蔽板３４と同軸にハニカム体
１を接触させる。ハニカム体１の端面が多孔体３１と接
触するのは、遮蔽板３４の外側の部分のみとなるので、
ハニカム体端面のうち前記ハニカム体外周部の軸方向全
長にわたる接合部１６に対応する部分のみが多孔体中に
浸漬した接着剤３３液と接触することとなる。As shown in FIG. 9, the porous body 31 may be formed in a disk shape, and the shielding plate 34 may be disposed on the porous body 31. The outer diameter of the shielding plate 34 is adjusted to the outer peripheral portion 1 of the honeycomb body.
6 is equal to the innermost diameter. The honeycomb body 1 is brought into contact with the shielding plate 34 coaxially on the porous body 31 on which the shielding plate 34 is disposed. Since the end face of the honeycomb body 1 comes into contact with the porous body 31 only at a portion outside the shielding plate 34,
Only the portion of the end face of the honeycomb body corresponding to the joint 16 over the entire length of the outer periphery of the honeycomb body in the axial direction comes into contact with the adhesive 33 liquid immersed in the porous body.
【００３４】多孔体３１としては、スポンジ、海綿体あ
るいはそれに準じた物質からなる多孔質弾性体を用いる
と、ハニカム体との密着性の観点から好ましい。As the porous body 31, it is preferable to use a sponge, a sponge body, or a porous elastic body made of a substance similar thereto, from the viewpoint of adhesion to the honeycomb body.
【００３５】以上のようにして、ハニカム体のロウ接合
すべき部位に接着剤２６及び接着剤３３を塗布した後、
ハニカム体にロウ粉末を散布する。ロウ粉末は接着剤２
６及び接着剤３３塗布部分のみに被着し、余剰のロウ粉
末はハニカム体から排出される。As described above, after the adhesive 26 and the adhesive 33 are applied to the portions of the honeycomb body to be brazed,
Spray wax powder on honeycomb body. Wax powder is adhesive 2
6 and the adhesive 33 are applied only to the applied portion, and the surplus wax powder is discharged from the honeycomb body.
【００３６】ハニカム体１を金属製の外筒２にはめ込む
時期は、平箔と波箔を巻き回した直後、接着剤３３を吸
い上げさせた後、ロウ粉末を散布した後のどの時期にお
いて行っても良い。The time when the honeycomb body 1 is fitted into the metal outer cylinder 2 is determined immediately after winding the flat foil and corrugated foil, after sucking up the adhesive 33, and after spraying the wax powder. Is also good.
【００３７】ハニカム体１外周部と外筒２の内周との接
合は、通常はロウ箔貼付やロウ粉末被着によって行う。
ハニカム体１の最外周が波箔である場合には、ハニカム
体１を外筒２に装着した後、ハニカム体最外周の波頂部
と外筒の内周との接触部に接着剤３３を吸い上げる吸い
上げ方式を採用することもできる。The joining of the outer peripheral portion of the honeycomb body 1 and the inner periphery of the outer cylinder 2 is usually performed by attaching a brazing foil or applying a brazing powder.
When the outermost periphery of the honeycomb body 1 is a corrugated foil, after the honeycomb body 1 is mounted on the outer cylinder 2, the adhesive 33 is sucked into a contact portion between the crest of the outermost periphery of the honeycomb body and the inner periphery of the outer cylinder. A siphoning method can also be adopted.
【００３８】次いで、外筒にはめ込まれたハニカム体を
高温加熱炉に挿入して高温に過熱し、平箔と波箔との接
触部付近に被着したロウ粉末を溶融させて該接触部をロ
ウ接合し、ハニカム体のロウ付けを完了する。Next, the honeycomb body fitted in the outer cylinder is inserted into a high-temperature heating furnace and heated to a high temperature, so that the brazing powder applied near the contact portion between the flat foil and the corrugated foil is melted, and the contact portion is melted. The brazing is performed to complete the brazing of the honeycomb body.
【００３９】本発明の接着剤３３吸上げに使用する接着
剤３３液としては、例えばポリビニルアルコール溶液が
ある。接着剤３３と金属箔表面との濡れ性が良好である
ほど吸上げが良好に進行する。これには、場合によって
界面活性剤を加えることにより接着剤３３の表面張力を
調整することができ、平箔と波箔との接触部への吸上げ
状況の調整が可能となる。また、接着剤３３液の粘度が
高すぎると吸上げに支障があるので、接着剤３３液は所
定の値よりも低い適切な範囲の粘度を有することが必要
である。As the adhesive 33 liquid used for sucking the adhesive 33 of the present invention, for example, there is a polyvinyl alcohol solution. The better the wettability between the adhesive 33 and the surface of the metal foil, the better the suction proceeds. For this purpose, the surface tension of the adhesive 33 can be adjusted by adding a surfactant, as the case may be, and the state of suction to the contact portion between the flat foil and the corrugated foil can be adjusted. In addition, if the viscosity of the adhesive 33 liquid is too high, there is a problem in absorption, so that the adhesive 33 liquid needs to have a viscosity in an appropriate range lower than a predetermined value.
【００４０】一方、本発明の金属箔端部あるいは内部に
部分的に塗布する接着剤２６については、例えばポリビ
ニルアルコール・高分子ポリマー等を使用することがで
きる。接着剤２６の粘度が低すぎると、平箔と波箔とを
巻き回したときに該平箔と波箔との接触部において表面
張力により接着剤２６が広がってしまうこととなる。そ
のため、該接着剤２６については、所定の値よりも高い
適切な範囲の粘度を有することが必要である。On the other hand, as the adhesive 26 to be partially applied to the end or inside of the metal foil of the present invention, for example, polyvinyl alcohol, a high molecular polymer, or the like can be used. If the viscosity of the adhesive 26 is too low, the adhesive 26 spreads due to surface tension at the contact portion between the flat foil and the corrugated foil when the flat foil and the corrugated foil are wound. Therefore, the adhesive 26 needs to have a viscosity in an appropriate range higher than a predetermined value.
【００４１】本発明においては、上記（７）のように、
接着剤３３液の粘度は接着剤２６の粘度よりも低粘度と
することにより、接着剤３３液は良好な吸上げを実現
し、接着剤２６については過度の広がりを防止すること
ができる。In the present invention, as described in the above (7),
By setting the viscosity of the adhesive 33 liquid to be lower than the viscosity of the adhesive 26, the adhesive 33 liquid can realize good suction and prevent the adhesive 26 from being excessively spread.
【００４２】平箔又は波箔に接着剤２６を塗布する際
に、ハニカム体のうち、ハニカム体外周部の軸方向全長
にわたる接合部１６に接着剤２６を塗布してしまうと、
その後の接着剤３３吸上げ時に接着剤３３は接着剤２６
塗布部より上までは吸い上がらないこととなってしま
う。したがって、接着剤２６塗布に際しては、ハニカム
体外周部の軸方向全長にわたる接合部１６に対応する部
分については接着剤２６を塗布しないように配慮する必
要がある。When the adhesive 26 is applied to the flat foil or corrugated foil, if the adhesive 26 is applied to the joining portion 16 of the honeycomb body over the entire axial length of the outer peripheral portion of the honeycomb body,
When the adhesive 33 is subsequently sucked up, the adhesive 33 becomes the adhesive 26.
It will not be sucked up above the application part. Therefore, when applying the adhesive 26, it is necessary to take care not to apply the adhesive 26 to the portion corresponding to the joint 16 over the entire axial length of the outer peripheral portion of the honeycomb body.
【００４３】図８は、ハニカム体外周部の軸方向全長に
わたる接合部１６及びハニカム体ガス入り側端部の接合
部１７を有するハニカム体を製造する例を示している。
図９は、ハニカム体外周部の軸方向全長にわたる接合部
１６、ハニカム体ガス入り側端部の接合部１７及びハニ
カム体内部の横断面接合部１８を有するハニカム体を製
造する例を示している。図８、図９ともに、ハニカム体
ガス入り側端部の接合部１７及びハニカム体内部の横断
面接合部１８は平箔と波箔とを巻き回す前に接着剤２６
を塗布し、ハニカム体外周部の軸方向全長にわたる接合
部１６は平箔と波箔とを巻き回した後に接着剤３３吸上
げ方式で接着剤３３を塗布する。FIG. 8 shows an example of manufacturing a honeycomb body having a joint 16 over the entire length in the axial direction of the outer peripheral portion of the honeycomb body and a joint 17 at the gas-filled end of the honeycomb body.
FIG. 9 shows an example of manufacturing a honeycomb body having a joining portion 16 extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body, a joining portion 17 at the end of the honeycomb body containing gas, and a joining section 18 having a cross section inside the honeycomb body. . 8 and 9, the joining portion 17 at the end of the honeycomb body containing gas and the joining portion 18 at the cross section inside the honeycomb body have an adhesive 26 before winding the flat foil and the corrugated foil.
Is applied, the bonding portion 16 covering the entire length in the axial direction of the outer peripheral portion of the honeycomb body is wound with a flat foil and a corrugated foil, and then the adhesive 33 is applied by the adhesive 33 sucking-up method.
【００４４】一方、ハニカム体端部の接合部１７は接着
剤３３吸上げ方式で接着剤３３を塗布することも可能で
ある。図１０において、ハニカム体内部の横断面接合部
１８は平箔と波箔とを巻き回す前に接着剤２６を塗布し
ておく。さらに、巻き回す前に、箔の表面に油脂等の吸
い上がり防止剤を塗布した吸い上がり防止剤塗布部３５
を施す。吸い上がり防止剤の塗布は、平箔３又は波箔４
もしくは平箔３と波箔４の双方の表面のいずれに塗布し
てもよい。箔に油脂等の吸い上がり防止剤を塗布する
と、接着剤３３と吸い上がり防止剤塗布部３５との濡れ
性が悪いため、接着剤３３は吸い上がり防止剤塗布部３
５より上には吸い上がらない。しかる後、図１０（ａ）
に示すようにハニカム体１のガス入り側端面９の全体を
多孔体３１に接触させると、接着剤３３はハニカム体の
全体にわたって平箔と波箔の接触部を吸い上がる。ハニ
カム体外周部の軸方向全長にわたる接合部１６について
は吸い上がり防止剤塗布部３５が存在しないために軸方
向全長にわたって接着剤３３が吸い上がるが、内周部１
３については、吸い上がり防止剤塗布部３５が存在する
ために接着剤３３はハニカム体の端部１７のみにしか吸
い上がらない。さらに、ハニカム体１の上下を逆転し、
図１０（ｂ）に示すようにハニカム体ガス出側端面１０
の内周部について多孔体を接触させることにより、ハニ
カム体の両側の端面についてハニカム体端部の接合部１
７を形成することもできる。On the other hand, the bonding portion 17 at the end of the honeycomb body can be coated with the adhesive 33 by the adhesive 33 suction method. In FIG. 10, the adhesive 26 is applied to the cross-section joint 18 inside the honeycomb body before winding the flat foil and the corrugated foil. Further, before winding, a suction-preventing agent application section 35 in which a suction-preventing agent such as oil or fat is applied to the surface of the foil is used.
Is applied. Apply the anti-wicking agent to flat foil 3 or corrugated foil 4.
Alternatively, it may be applied to both the surfaces of the flat foil 3 and the corrugated foil 4. If a suction-preventing agent such as oil or fat is applied to the foil, the wettability between the adhesive 33 and the suction-preventing agent application unit 35 is poor.
Does not wick above 5 After a while, FIG.
When the entire gas-filled end face 9 of the honeycomb body 1 is brought into contact with the porous body 31 as shown in (1), the adhesive 33 sucks up the contact portion between the flat foil and the corrugated foil over the entire honeycomb body. The adhesive 33 sucks up over the entire length in the axial direction of the joined portion 16 over the entire length in the axial direction of the outer peripheral portion of the honeycomb body because the suction-applying agent application portion 35 does not exist.
With respect to No. 3, the adhesive 33 is sucked up only to the end portion 17 of the honeycomb body due to the presence of the anti-suction agent application section 35. Further, the honeycomb body 1 is turned upside down,
As shown in FIG. 10B, the honeycomb body gas exit side end face 10
The inner peripheral portion of the honeycomb body is brought into contact with the porous body, so that the end portions on both sides of the honeycomb body are joined to the joining portion 1 of the end portion of the honeycomb body.
7 can also be formed.
【００４５】本発明において、吸い上がり防止剤塗布部
３５は、ハニカム体端部の接合部１７を形成する部分の
軸方向内側に、かつこれに隣接して設けられる。In the present invention, the anti-suction agent application section 35 is provided on the inner side in the axial direction of the portion forming the bonding portion 17 at the end of the honeycomb body and adjacent to the same.
【００４６】すなわち、図１０（ａ）、図１０（ｂ）に
示したハニカム体では、吸い上がり防止剤塗布部３５
は、ガス入側のハニカム体端部の接合部１７を形成する
部分の軸方向内部側に、かつこれに隣接して、および、
ガス出側端部のハニカム体端部の接合部１７を形成する
部分の軸方向内側に、かつこれに隣接して設けられてい
る。That is, in the honeycomb body shown in FIG. 10A and FIG.
Is located on the inner side in the axial direction of the portion forming the joint 17 at the end of the honeycomb body on the gas entry side, and adjacent thereto, and
It is provided on the inner side in the axial direction of the portion forming the joining portion 17 of the end of the honeycomb body on the gas outlet side and adjacent thereto.
【００４７】図１１に示すように、波箔のハニカム体内
部の横断面接合部１８への接着剤２６塗布と箔の吸い上
がり防止剤塗布部３５への油脂等の塗布を行い、次いで
平箔と波箔とを巻きまわし、その後図１１（ａ）のよう
にハニカム体端面の外周部を多孔体３１と接触させてハ
ニカム体外周部の軸方向全長にわたる接合部１６に接着
剤３３吸上げ方式で接着剤３３を塗布し、次いで図１１
（ｂ）のようにハニカム体端面の内周部を多孔体３１と
接触させてハニカム体端部の接合部１７に接着剤３３吸
上げ方式で接着剤３３を塗布することもできる。図１１
に示したハニカム体では、吸い上がり防止剤塗布部３５
は、ガス入り側のハニカム体端部の接合部１７を形成す
る部分の軸方向内側に、かつこれに隣接して設けられて
いる。As shown in FIG. 11, the adhesive 26 is applied to the cross-section joint 18 inside the honeycomb body of the corrugated foil, and the oil or fat is applied to the foil suction-preventing agent application section 35. Then, as shown in FIG. 11 (a), the outer peripheral portion of the end face of the honeycomb body is brought into contact with the porous body 31, and the adhesive 33 is sucked up to the joint 16 over the entire length of the outer peripheral portion of the honeycomb body in the axial direction. The adhesive 33 is applied with
As shown in (b), the inner peripheral portion of the end face of the honeycomb body is brought into contact with the porous body 31 so that the adhesive 33 can be applied to the joint 17 at the end of the honeycomb body by the adhesive 33 sucking-up method. FIG.
In the honeycomb body shown in FIG.
Is provided axially inside and adjacent to a portion forming the joint portion 17 at the end of the honeycomb body on the gas entry side.
【００４８】ハニカム体１の軸芯部７については、平箔
３と波箔４との巻き回しの最初の部分であり、他の部分
と比較して弱くなる場合がある。そのため、図１２に示
すように、軸芯部７についてもハニカム体の軸方向全長
にわたって接合部とすることが好ましい。図１２（ｂ）
に示すように、多孔体として円環状の多孔体３１ａと円
柱状の多孔体３１ｂとを用いれば、図１２（ａ）に示す
ように、ハニカム体外周部の接合部１７と軸芯部７の接
合部とに同時に接着剤３３を吸い上げることができる。The shaft core 7 of the honeycomb body 1 is the first part of the winding of the flat foil 3 and the corrugated foil 4, and may be weaker than other parts. For this reason, as shown in FIG. 12, it is preferable that the shaft core 7 is also a joint over the entire axial length of the honeycomb body. FIG. 12 (b)
As shown in FIG. 12, when the annular porous body 31a and the columnar porous body 31b are used as the porous body, as shown in FIG. The adhesive 33 can be sucked up to the joint at the same time.
【００４９】本発明の上記（８）について図１３、１４
に基づいて説明する。ハニカム体１の軸方向の長さが長
い場合には、軸方向の全長を接着剤３３の吸上げによっ
て対応しようとすると、接着剤３３液表面に接触させた
側のハニカム体端面付近において接着剤３３が過剰に付
着したり、逆に接着剤３３液を接触させた側と反対側の
端面が接着剤不足になるなどの問題が生じることがあ
る。また、ハニカム体の外周部の軸方向全長にわたる接
合部２０においては、軸方向長さのうちの一部の部分
（ガス入り側端部の部分２０ｂ）で接着剤３３吸上げに
よる健全な接合部が形成されていれば、軸方向長さの残
りの部分（ガス入り側端部を除く部分２０ａ）について
は、平箔と波箔の巻き回しの前に接着剤２６を塗布する
方法を用いた場合でも十分に強度のある接合部とするこ
とができる。Regarding the above (8) of the present invention, FIGS.
It will be described based on. In the case where the length of the honeycomb body 1 in the axial direction is long, if the entire length in the axial direction is to be accommodated by sucking up the adhesive 33, the adhesive 33 is provided near the end face of the honeycomb body on the side in contact with the liquid surface of the adhesive 33. Problems may occur, such as excessive adhesion of the adhesive 33 or insufficient adhesive at the end face opposite to the side contacted with the adhesive 33 liquid. In addition, in the joint 20 over the entire length in the axial direction of the outer peripheral portion of the honeycomb body, a sound joint by sucking up the adhesive 33 at a part of the axial length (portion 20b at the gas-entering end). Is formed, the remaining portion of the axial length (the portion 20a excluding the gas-filled end portion) is coated with the adhesive 26 before winding the flat foil and the corrugated foil. Even in this case, a sufficiently strong joint can be obtained.
【００５０】一方、ハニカム体のガス入り側端部の接合
部１７については、ハニカム体内周部の強度を確保する
ための接合部であり、接着剤塗布もれあるいは接着剤塗
布むらを防止する観点からは、平箔と波箔とを巻き回す
前に接着剤２６を塗布するよりも、接着剤３３吸い上げ
方式を用いると好ましい。On the other hand, the bonding portion 17 at the gas-filled end of the honeycomb body is a bonding portion for ensuring the strength of the peripheral portion of the honeycomb body, and a viewpoint of preventing the adhesive application leakage or the uneven adhesive application. For this reason, it is preferable to use the adhesive 33 suction system rather than applying the adhesive 26 before winding the flat foil and the corrugated foil.
【００５１】図１３（ａ）は、接着剤３３を吸い上げる
前の状況を示す図である。ハニカム体内部の横断面接合
部１８及びハニカム体外周部の軸方向全長にわたる接合
部のうちのガス入り側端部を除く部分２０ａについて、
平箔３と波箔４とを巻き回す前に接着剤２６を塗布して
いる。また、ガス入り側端面９の付近において、箔の吸
い上がり防止剤塗布部３５への油脂塗布を行っている。
吸い上がり防止剤の塗布は、平箔３又は波箔４もしくは
平箔３と波箔４の双方の表面のいずれに塗布しても良
い。この状態で、図１３（ｂ）に示すように、ハニカム
体のガス入り側端面９の全面に接着剤３３液表面を接触
させることにより、平箔と波箔の接触部５に接着剤３３
を吸い上げる。ハニカム体外周部の軸方向全長にわたる
接合部のうちのガス入り側端部の部分２０ｂについて
は、既に接着剤２６が塗布された部分の下まで接着剤３
３が吸い上がり、ハニカム体の内周部については、吸い
上がり防止剤塗布部３５の下まで接着剤３３が吸い上が
り、図１３（ｂ）に示す状態となる。FIG. 13A is a diagram showing a state before the adhesive 33 is sucked up. Regarding the portion 20a excluding the gas-filled side end portion of the transverse cross-section joining portion 18 inside the honeycomb body and the joining portion extending over the entire axial length of the outer peripheral portion of the honeycomb body,
The adhesive 26 is applied before the flat foil 3 and the corrugated foil 4 are wound. Further, in the vicinity of the gas-filled side end surface 9, oil and fat is applied to the foil sucking-up preventing agent applying portion 35.
The anti-wicking agent may be applied to either the flat foil 3 or the corrugated foil 4 or the surface of both the flat foil 3 and the corrugated foil 4. In this state, as shown in FIG. 13B, the entire surface of the gas-filled end face 9 of the honeycomb body is brought into contact with the liquid surface of the adhesive 33 so that the adhesive 33 is brought into contact with the contact portion 5 between the flat foil and the corrugated foil.
Suck up. In the portion 20b of the gas-filled side end portion of the joining portion extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body, the adhesive
3 is sucked up, and the adhesive 33 is sucked up to below the sucking-up preventing agent application portion 35 in the inner peripheral portion of the honeycomb body, and the state shown in FIG.
【００５２】ハニカム体外周部の軸方向全長にわたる接
合部のうちのガス入り側端部の部分２０ｂの軸方向長さ
については、図１４に示すように、ハニカム体端部の接
合部１７の長さよりも長くすることができる。これによ
り、ハニカム体外周部の軸方向全長にわたる接合部２０
は、図１３に示す場合よりもより健全性を増すことがで
きる。As shown in FIG. 14, the length of the gas-filled end portion 20b of the joining portion extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body is, as shown in FIG. Can be longer. Thereby, the joining portion 20 over the entire length in the axial direction of the outer peripheral portion of the honeycomb body is formed.
Can improve the soundness more than the case shown in FIG.
【００５３】図１３、図１４に示したハニカム体では、
吸い上がり防止剤塗布部３５は、ガス入り側のハニカム
体端部の接合部１７を形成する部分の軸方向内側に、か
つこれに隣接して設けられている。In the honeycomb body shown in FIGS. 13 and 14,
The suction-preventing agent applying section 35 is provided on the inner side in the axial direction of the portion forming the joint section 17 at the end of the honeycomb body on the gas entry side and adjacent thereto.
【００５４】上記（９）〜（１２）の発明は、上記
（８）の発明に上記（２）〜（４）、（７）の発明を適
用したものであり、上記（２）〜（４）、（７）の発明
と同様により良好な結果を得ることができる。また、上
記（１３）の発明は、吸い上がり防止剤塗布部３５の形
成状況を明確化するものである。In the inventions (9) to (12), the inventions (2) to (4) and (7) are applied to the invention (8), and the inventions (2) to (4) ), Better results can be obtained as in the invention of (7). Further, the invention (13) clarifies the formation state of the suction-preventing agent applying section 35.
【００５５】前述したとおり、本発明において平箔３と
波箔４とを巻きまわして積層する理由は、積層すること
によって波箔の波１波長部分と平箔とで囲まれて形成さ
れるセルを排気ガスの流通経路とする点にある。このよ
うなセルが形成されれば目的を達するのであって、その
ような目的を達成する範囲内でありさえすれば、平箔３
は完全に平坦であることは必要ない。本発明の上記（１
４）においては、図１５に示すように、平箔３はコルゲ
ート形状１４を有している。平箔３のコルゲート形状１
４の波高さは波箔４の波高さよりも小さいので、平箔３
と波箔４とを積層することによって排気ガスの流通経路
であるセルの形成はコルゲート形状を有しない平箔３の
場合と同様である。平箔３のコルゲート形状１４の波波
長は、図１５（ａ）に示すように波箔４の波波長より小
さくても、あるいは図１５（ｂ）に示すように波箔４の
波波長より大きくても良い。好ましくは、平箔３のコル
ゲート形状１４の波波長は波箔４の波波長の８５％以下
とし、平箔３のコルゲート形状１４の波高さは波箔４の
波高さの５０％以下とすることにより、良好なセル形状
を有するハニカム体を形成することができる。平箔３が
このようなコルゲート形状１４を有することにより、平
箔３の弾力性を増大してハニカム体の寿命を改善する効
果を得ることができる。As described above, in the present invention, the reason why the flat foil 3 and the corrugated foil 4 are wound and laminated is that the cell formed by lamination is surrounded by the one-wave portion of the corrugated foil and the flat foil. Is used as a flow path of exhaust gas. If such a cell is formed, the object is achieved, and as long as it is within the range of achieving the object, the flat foil 3
Need not be perfectly flat. The above (1) of the present invention
In 4), the flat foil 3 has a corrugated shape 14 as shown in FIG. Corrugated shape 1 of flat foil 3
4 is smaller than the wave height of the corrugated foil 4, so that the flat foil 3
The formation of the cell, which is the flow path of the exhaust gas, by laminating the corrugated foil 4 and the corrugated foil 4 is similar to that of the flat foil 3 having no corrugated shape. The wave wavelength of the corrugated shape 14 of the flat foil 3 may be smaller than the wave wavelength of the corrugated foil 4 as shown in FIG. 15A, or larger than the wave wavelength of the corrugated foil 4 as shown in FIG. May be. Preferably, the wave wavelength of the corrugated shape 14 of the flat foil 3 is 85% or less of the wave wavelength of the corrugated foil 4, and the wave height of the corrugated shape 14 of the flat foil 3 is 50% or less of the wave height of the corrugated foil 4. Thereby, a honeycomb body having a favorable cell shape can be formed. When the flat foil 3 has such a corrugated shape 14, an effect of increasing the elasticity of the flat foil 3 and improving the life of the honeycomb body can be obtained.
【００５６】[0056]
【発明の効果】本発明のハニカム体を用いたメタル担体
は、ハニカム体の外周部については軸方向の全長につい
て接合を行い、内周部についてはハニカム体の端部及び
／又はハニカム体の内部の１横断面について接合を行う
ことにより、触媒担体に負荷される熱負荷や熱応力に耐
える構造信頼性を実現し、更にはエンジン失火時におい
ても破損することのないハニカム体とすることができ
る。According to the metal carrier using the honeycomb body of the present invention, the outer peripheral portion of the honeycomb body is joined to the entire length in the axial direction, and the inner peripheral portion is the end portion of the honeycomb body and / or the inside of the honeycomb body. By performing joining on one cross section of the above, it is possible to realize a structural reliability that withstands a thermal load or a thermal stress applied to the catalyst carrier, and furthermore, it is possible to obtain a honeycomb body that is not damaged even when an engine misfires. .
【００５７】本発明の上記（１）〜（７）ではハニカム
体外周部の軸方向全長にわたる接合部１６、上記（８）
ではハニカム体ガス入り側端部の接合部１７について
は、平箔と波箔とを巻き回した後に接着剤吸上げ方式で
接着剤を塗布するので、平箔又は波箔にロールで接着剤
２６を塗布する方法と比較し、接合不良の発生がなくな
り、かつロウ材過多となることもなく、極めて良好な接
合を行うことができる。波箔表面に湾曲が存在する場合
にも、軸方向全長にわたる接合部に均一に接着剤を塗布
し、均一なロウ付けを行うことができる。In the above (1) to (7) of the present invention, the joining portion 16 extending over the entire axial length of the outer peripheral portion of the honeycomb body;
In the joint 17 at the end of the honeycomb body gas-containing side, the flat foil and the corrugated foil are wound, and then the adhesive is applied by the adhesive suction method. As compared with the method of applying a coating material, it is possible to achieve extremely good bonding without occurrence of bonding failure and without excessive brazing material. Even when the surface of the corrugated foil has a curvature, the adhesive can be uniformly applied to the joint over the entire length in the axial direction, and uniform brazing can be performed.
【００５８】ロールによる接着剤塗布はハニカム体端部
の接合部及び／又は端部から軸方向に離れたハニカム体
内部の横断面接合部のみとすればいいので、ハニカム体
製造装置の設備費を低減することができる。The application of the adhesive by the roll may be performed only at the joint at the end of the honeycomb body and / or at the transverse cross-section inside the honeycomb body which is axially away from the end, so that the equipment cost of the honeycomb body manufacturing apparatus is reduced. Can be reduced.
【００５９】ロールによる接着剤塗布を併用しているの
で、ハニカム体内部の横断面にのみ接着剤を塗布するこ
とが可能であり、失火対策を講じたハニカム体の製造を
行うことができる。Since the application of the adhesive by a roll is also used, it is possible to apply the adhesive only to the cross section inside the honeycomb body, and it is possible to manufacture the honeycomb body with measures against misfire.
【図１】本発明の外筒付きハニカム体の一部断面斜視図
である。FIG. 1 is a partially sectional perspective view of a honeycomb body with an outer cylinder of the present invention.
【図２】本発明のハニカム体の断面図である。FIG. 2 is a sectional view of a honeycomb body of the present invention.
【図３】本発明において平箔にロールで接着剤を塗布す
る状況を示す図である。FIG. 3 is a diagram showing a situation in which an adhesive is applied to a flat foil by a roll in the present invention.
【図４】本発明において波箔にロールで接着剤を塗布す
る状況を示す図である。FIG. 4 is a diagram showing a situation in which an adhesive is applied to a corrugated foil by a roll in the present invention.
【図５】本発明において波箔にロールで接着剤を塗布す
る状況を示す斜視図である。FIG. 5 is a perspective view showing a situation in which an adhesive is applied to a corrugated foil by a roll in the present invention.
【図６】平箔と波箔とを巻き回してハニカム体とする状
況を示す斜視図である。FIG. 6 is a perspective view showing a state where a flat foil and a corrugated foil are wound to form a honeycomb body.
【図７】平箔と波箔の接触部に接着剤を塗布した状況を
示す断面図である。FIG. 7 is a cross-sectional view showing a state where an adhesive is applied to a contact portion between a flat foil and a corrugated foil.
【図８】ハニカム体に接着剤を吸い上げる状況を示す図
である。FIG. 8 is a diagram showing a situation where an adhesive is sucked into a honeycomb body.
【図９】ハニカム体に接着剤を吸い上げる状況を示す図
である。FIG. 9 is a diagram illustrating a situation where an adhesive is sucked into a honeycomb body.
【図１０】ハニカム体に接着剤を吸い上げる状況を示す
図である。FIG. 10 is a diagram showing a situation where an adhesive is sucked into a honeycomb body.
【図１１】ハニカム体に接着剤を吸い上げる状況を示す
図である。FIG. 11 is a diagram showing a situation where an adhesive is sucked into a honeycomb body.
【図１２】ハニカム体に接着剤を吸い上げる状況を示す
図である。FIG. 12 is a diagram illustrating a situation where an adhesive is sucked into a honeycomb body.
【図１３】ハニカム体に接着剤を吸い上げる状況を示す
図であり、（ａ）は接着剤吸い上げ前、（ｂ）は接着剤
吸い上げ後を示す図である。FIGS. 13A and 13B are diagrams illustrating a situation where the adhesive is sucked into the honeycomb body, in which FIG. 13A illustrates a state before the adhesive is sucked, and FIG. 13B illustrates a state after the adhesive is sucked.
【図１４】ハニカム体に接着剤を吸い上げる状況を示す
図であり、（ａ）は接着剤吸い上げ前、（ｂ）は接着剤
吸い上げ後を示す図である。FIGS. 14A and 14B are diagrams showing a situation where the adhesive is sucked into the honeycomb body, wherein FIG. 14A is a diagram showing a state before the adhesive is sucked, and FIG.
【図１５】平箔がコルゲート形状を有する場合のハニカ
ム体部分断面図であるり、（ａ）は平箔のコルゲート形
状波長が波箔の波波長より小さい場合、（ｂ）は逆に大
きい場合を示す図である。FIG. 15 is a partial cross-sectional view of a honeycomb body when a flat foil has a corrugated shape. FIG. 15 (a) shows a case where the corrugated shape wavelength of the flat foil is smaller than the wave wavelength of the corrugated foil, and FIG. FIG.
１ ハニカム体 ２ 外筒 ３ 平箔 ４ 波箔 ５ 平箔と波箔の接触部 ６ 波頂部 ７ 軸芯部 ９ ガス入り側端面 １０ ガス出側端面 １１ 端部 １２ 外周部 １３ 内周部 １４ コルゲート形状 １６ ハニカム体外周部の軸方向全長にわたる接合部 １７ ハニカム体端部の接合部 １８ ハニカム体内部の横断面接合部 ２０ ハニカム体外周部の軸方向全長にわたる接合部 ２０ａ ハニカム体外周部の軸方向全長にわたる接合部
のうちのガス入り側端部を除く部分 ２０ｂ ハニカム体外周部の軸方向全長にわたる接合部
のうちのガス入り側端部の部分 ２１ 接着剤塗布ロール ２２ 接着剤貯槽 ２３ 第２ロール ２４ 第３ロール ２５ 接着剤塗布装置 ２６ 接着剤 ２７ 端部 ２８ 内部 ３１ 多孔体 ３２ 接着剤貯槽 ３３ 接着剤 ３４ 遮蔽板 ３５ 吸い上がり防止剤塗布部DESCRIPTION OF SYMBOLS 1 Honeycomb body 2 Outer cylinder 3 Flat foil 4 Corrugated foil 5 Contact part between flat foil and corrugated foil 6 Wave crest 7 Shaft core 9 Gas entry side end face 10 Gas exit side end face 11 End section 12 Outer section 13 Inner section 14 Corrugated Shape 16 Joined portion of honeycomb body outer peripheral portion over the entire axial direction 17 Joined portion of honeycomb body end portion 18 Cross-sectional joined portion inside honeycomb body 20 Joined portion over entire length of honeycomb body outer peripheral portion in axial direction 20a Axial direction of honeycomb body outer peripheral portion Except for the gas-filled end of the joint over the entire length 20b Part of the gas-filled end of the joint over the entire axial length of the outer periphery of the honeycomb body 21 Adhesive application roll 22 Adhesive storage tank 23 Second roll 24 Third roll 25 Adhesive coating device 26 Adhesive 27 End 28 Inside 31 Porous body 32 Adhesive storage tank 33 Adhesive 34 Shield plate 35 Applying anti-wicking agent
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩見 和俊 東京都千代田区大手町２−６−３ 新日 本製鐵株式会社内 (72)発明者 糟谷 雅幸 東海市東海町５−３ 新日本製鐵株式会 社 名古屋製鐵所内 (56)参考文献 特開 平７−171411（ＪＰ，Ａ) 特開 平３−94835（ＪＰ，Ａ) 特開 平７−51580（ＪＰ，Ａ) 特開 昭61−71841（ＪＰ，Ａ) 特開 平５−200307（ＪＰ，Ａ) 特開 平７−204522（ＪＰ，Ａ) 特開 平５−337375（ＪＰ，Ａ) 特開 平３−4938（ＪＰ，Ａ) 特開 平４−187245（ＪＰ，Ａ) 実開 平５−96426（ＪＰ，Ｕ) 特表 平３−501363（ＪＰ，Ａ) 米国特許5082167（ＵＳ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 38/74 B01D 53/94 F01N 3/28 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazutoshi Iwami 2-6-3 Otemachi, Chiyoda-ku, Tokyo Nippon Steel Corporation (72) Inventor Masayuki Kasuya 5-3 Tokaicho, Tokai-shi Made in New Japan (56) References JP-A-7-171411 (JP, A) JP-A-3-94835 (JP, A) JP-A-7-51580 (JP, A) JP-A 61 JP-A-71841 (JP, A) JP-A-5-200307 (JP, A) JP-A-7-204522 (JP, A) JP-A-5-337375 (JP, A) JP-A-3-4938 (JP, A) JP-A-4-187245 (JP, A) JP-A-5-96426 (JP, U) JP-A-3-501363 (JP, A) US Patent 5082167 (US, A) (58) Fields investigated (Int) .Cl. 7 , DB name) B01J 21/00-38/74 B01D 53/94 F01N 3/28
Claims (5)
しロウ付けしたハニカム体であって、該ハニカム体の平
箔と波箔とのロウ接合部位については、ハニカム体外周
部の軸方向全長にわたる接合部、ハニカム体端部の接合
部及び端部から軸方向に離れたハニカム体内部の横断面
接合部において接合されているハニカム体の製造方法に
おいて、 （ａ）平箔又は波箔のロウ接合すべき部分であって前記
ハニカム体端部から軸方向に離れたハニカム体内部の横
断面接合部に対応する部分及びハニカム体外周部の軸方
向全長にわたる接合部のうちのガス入り側端部を除く部
分に接着剤を塗布し、該接着剤の塗布は、表面に接着剤
を被着したロールを平箔又は波箔に接触させることによ
って行い、併せてハニカム体内周部の箔の表面に吸い上
がり防止剤を塗布し、該吸い上がり防止剤塗布部はガス
入り側のハニカム体端部の接合部を形成する部分の軸方
向内側に、かつこれに隣接して設けられ、 （ｂ）次いで平箔と波箔とを巻き回してハニカム体形状
とし、 （ｃ）さらにハニカム体のガス入り側端面を接着剤液表
面に接触させて前記平箔と波箔の接触部に接着剤を吸い
上げさせて、ハニカム体外周部の軸方向全長にわたる接
合部のうちのガス入り側端部の部分とハニカム体端部の
接合部に接着剤を付着し、 （ｄ）その後にロウ粉末をハニカム体に散布して接着剤
付着部にロウ材を被着することを特徴とするハニカム体
の製造方法。1. Winding and laminating a metal flat foil and corrugated foil
A honeycomb body which is brazed and flattened.
For the solder joint between the foil and the corrugated foil,
Of the joint and the end of the honeycomb body over the entire axial length of the part
Departmentas well asCross-section inside the honeycomb body axially away from the end
For manufacturing method of honeycomb body joined at the joint
(A) a part of a flat foil or a corrugated foil to be brazed,
Lateral inside the honeycomb body that is axially away from the end of the honeycomb body
The axial direction of the part corresponding to the cross-section joint and the outer peripheral part of the honeycomb body
Excluding the gas-filled end of the joint over the entire length
Apply the adhesive to the minute,The adhesive is applied on the surface with the adhesive
By contacting the roll with
To the surface of the foil around the honeycomb body.
Apply anti-sagging agent, and apply
Axial direction of the part forming the joint at the end of the honeycomb body on the entry side
It is provided on the inside and adjacent to this, (B) Next, a flat foil and a corrugated foil are wound to form a honeycomb body
(C) Further, the gas-filled end face of the honeycomb body is
Contact the flat foil and the corrugated foil to absorb the adhesive.
The honeycomb body outer peripheral part along the entire length in the axial direction.
Of the gas-filled end of the joint and the end of the honeycomb body
Adhesive is applied to the joint, and (d) after that, the wax powder is sprayed on the honeycomb body and the adhesive is applied.
A honeycomb body characterized in that a brazing material is applied to an attachment portion.
Manufacturing method.
たる接合部は、ハニカム体の最外周部から内周側へ半径
の１／３長さまでの領域であることを特徴とする請求項
１に記載のハニカム体の製造方法。2. The honeycomb structure according to claim 1, wherein the joining portion extending over the entire length in the axial direction of the outer peripheral portion of the honeycomb body is a region extending from the outermost peripheral portion to the inner peripheral side of the honeycomb body to a length of ３ of the radius. A manufacturing method of the honeycomb body according to the above.
分は、波箔の波頂部であることを特徴とする請求項１又
は２に記載のハニカム体の製造方法。3. The method for manufacturing a honeycomb body according to claim 1, wherein the portion of the flat foil or the corrugated foil to which the adhesive is applied is a crest of the corrugated foil.
前記塗布に用いる接着剤の粘度よりも低粘度であること
を特徴とする請求項１乃至３のいずれかに記載のハニカ
ム体の製造方法。4. The method for manufacturing a honeycomb body according to claim 1, wherein the viscosity of the adhesive liquid used for the suction is lower than the viscosity of the adhesive used for the application. .
ルゲート形状の波高さは波箔の波高さよりも小さいこと
を特徴とする請求項１乃至４のいずれかに記載のハニカ
ム体の製造方法。5. The method for manufacturing a honeycomb body according to claim 1, wherein the flat foil has a corrugated shape, and the corrugated shape has a wave height smaller than the wave height of the corrugated foil. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001308196A JP3338703B1 (en) | 2000-10-10 | 2001-10-04 | Method for manufacturing honeycomb body |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-308928 | 2000-10-10 | ||
| JP2000308928 | 2000-10-10 | ||
| JP2001-205592 | 2001-07-06 | ||
| JP2001205592 | 2001-07-06 | ||
| JP2001308196A JP3338703B1 (en) | 2000-10-10 | 2001-10-04 | Method for manufacturing honeycomb body |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002192878A Division JP2003080660A (en) | 2000-10-10 | 2002-07-02 | Method for manufacturing honeycomb body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3338703B1 true JP3338703B1 (en) | 2002-10-28 |
| JP2003080082A JP2003080082A (en) | 2003-03-18 |
Family
ID=27344893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001308196A Expired - Fee Related JP3338703B1 (en) | 2000-10-10 | 2001-10-04 | Method for manufacturing honeycomb body |
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| Country | Link |
|---|---|
| JP (1) | JP3338703B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4684645B2 (en) * | 2004-12-22 | 2011-05-18 | 新日鉄マテリアルズ株式会社 | Metal carrier for catalyst support with excellent structural durability |
| JP5199291B2 (en) * | 2010-02-03 | 2013-05-15 | 新日鉄住金マテリアルズ株式会社 | Catalyst carrier |
| JP5674531B2 (en) * | 2011-03-31 | 2015-02-25 | 本田技研工業株式会社 | Honeycomb unit for exhaust gas purification |
-
2001
- 2001-10-04 JP JP2001308196A patent/JP3338703B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003080082A (en) | 2003-03-18 |
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