JPH06315638A - Production of metallic catalyst carrier - Google Patents
Production of metallic catalyst carrierInfo
- Publication number
- JPH06315638A JPH06315638A JP5104420A JP10442093A JPH06315638A JP H06315638 A JPH06315638 A JP H06315638A JP 5104420 A JP5104420 A JP 5104420A JP 10442093 A JP10442093 A JP 10442093A JP H06315638 A JPH06315638 A JP H06315638A
- Authority
- JP
- Japan
- Prior art keywords
- foil
- carrier
- corrugated
- metal
- catalyst carrier
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000003863 metallic catalyst Substances 0.000 title abstract 3
- 239000011888 foil Substances 0.000 claims abstract description 117
- 239000000853 adhesive Substances 0.000 claims abstract description 37
- 230000001070 adhesive effect Effects 0.000 claims abstract description 36
- 238000003466 welding Methods 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 57
- 239000002184 metal Substances 0.000 claims description 57
- 239000003054 catalyst Substances 0.000 claims description 33
- 238000005304 joining Methods 0.000 abstract description 6
- 238000005219 brazing Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 230000008646 thermal stress Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は金属触媒担体の製造方法
に関する。この種の金属触媒担体は、主として自動車用
エンジンの排気通路に設けられ、エンジンの排気ガス中
に含まれる有害物質、例えば炭化水素や一酸化炭素等を
除去し、排気ガスを浄化するのに使用される。FIELD OF THE INVENTION The present invention relates to a method for producing a metal catalyst carrier. This type of metal catalyst carrier is mainly provided in the exhaust passage of an automobile engine and is used to remove harmful substances contained in the exhaust gas of the engine, such as hydrocarbons and carbon monoxide, and to purify the exhaust gas. To be done.
【０００２】[0002]
【従来の技術】特開平２−１９４８４３号公報には自動
車触媒用金属担体の製造方法が開示され、これによる
と、平坦な鋼板（平箔）と波付け加工した鋼板（波箔）
とを重ねて円筒状に巻いてハニカム体を形成し、このハ
ニカム体の平箔と波箔とをろう付けする場合において、
平箔と波箔のいずれか一方にろう材固定用のバインダを
塗布した後、平箔と波箔とを重ねて巻き込んでハニカム
体を形成し、次いで、このハニカム体の端部から粒子状
のろう材を供給し、加熱してろう付けすることが開示さ
れている。2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 2-194843 discloses a method for producing a metal carrier for an automobile catalyst. According to this method, a flat steel plate (flat foil) and a corrugated steel plate (corrugated foil) are disclosed.
In order to form a honeycomb body by stacking and winding in a cylindrical shape, and brazing the flat foil and the corrugated foil of this honeycomb body,
After applying a binder for fixing the brazing material to either one of the flat foil and the corrugated foil, the flat foil and the corrugated foil are overlapped and rolled up to form a honeycomb body, and then the honeycomb body is particulated from the end portion. It is disclosed that a brazing material is supplied and heated for brazing.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
従来の金属触媒担体の製造方法によると、液状バンイダ
はハニカム体の平箔と波箔との間に規定される通路の軸
方向の全域について、しかも平箔と波箔の山頂部との接
触部からはみ出した領域にまで、塗布され、特に、上記
従来公報の第２図に示すように、ろう材も同様に、通路
の軸方向の全域に、しかも平箔と波箔の山頂部との接触
部からはみ出した領域にも存在することとなり、したが
って、このような箇所に付着したろう材が触媒担体の通
路断面積を狭めることとなり、結果として排気ガスの通
気抵抗となり、ひいては触媒担体による排気ガスの浄化
性能を低下させることとなる。また、触媒担体は半径方
向ないし積層方向の熱応力を受けることとなるが、波箔
と平箔の接触領域を越えて付着しているろう材により熱
応力に対する柔軟性或いは耐久性が低下するという問題
もある。However, according to the above-mentioned conventional method for producing a metal catalyst carrier, the liquid van der is used for the whole area in the axial direction of the passage defined between the flat foil and the corrugated foil of the honeycomb body. Moreover, it is applied even to the area protruding from the contact portion between the flat foil and the crest of the corrugated foil, and in particular, as shown in FIG. 2 of the above-mentioned conventional publication, the brazing material is similarly applied to the entire area in the axial direction of the passage. Moreover, it also exists in the area protruding from the contact portion between the flat foil and the crest of the corrugated foil, and therefore, the brazing material adhered to such a portion narrows the passage cross-sectional area of the catalyst carrier, and as a result, This results in ventilation resistance of the exhaust gas, which in turn lowers the exhaust gas purification performance of the catalyst carrier. Further, although the catalyst carrier is subjected to thermal stress in the radial direction or the laminating direction, it is said that the brazing material adhered beyond the contact area between the corrugated foil and the flat foil reduces flexibility or durability against thermal stress. There are also problems.
【０００４】そこで、本発明は、金属触媒担体の耐久性
を低下させることなく、通路抵抗の低下を防止でき、ひ
いては排気ガスの浄化性能の低下を防止できる金属触媒
担体の製造方法を提供することを目的とする。Therefore, the present invention provides a method for producing a metal catalyst carrier, which can prevent a decrease in passage resistance without lowering the durability of the metal catalyst carrier, and thus can prevent a decrease in exhaust gas purification performance. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記のような目的を解決
するために、第１の発明によると、金属波箔と金属平箔
とを略交互に重ねて積層又は巻回して略ハニカム状の金
属担体を形成する工程と、これらの波箔と平箔と間に規
定される多数の通路の方向に関し、前記担体の両端面の
少なくとも一方の端面に、放電接合するための液体状の
接着剤を塗布する工程と、該端面における前記波箔と平
箔との接触領域以外の領域に付着した接着剤を除去する
工程と、残りの接着剤付着箇所に溶接粉を保持させる工
程と、該溶接粉を使用して前記端面を放電接合する工程
と、を含んでなる金属触媒担体の製造方法が提案され
る。In order to solve the above-mentioned object, according to the first invention, metal corrugated foils and metal flat foils are substantially alternately stacked and laminated or wound to form a substantially honeycomb shape. With respect to the step of forming the metal carrier and the direction of the multiple passages defined between the corrugated foil and the flat foil, a liquid adhesive for discharge bonding to at least one end face of both end faces of the carrier. A step of applying an adhesive, a step of removing an adhesive attached to an area other than a contact area between the corrugated foil and a flat foil on the end face, a step of holding welding powder at the remaining adhesive adhering points, and the welding A method for producing a metal catalyst carrier, which comprises the step of discharge-bonding the end faces using powder, is proposed.
【０００６】また、第２の発明によると、金属波箔と金
属平箔とを略交互に重ねて積層又は巻回して略ハニカム
状の金属担体を形成する工程と、これらの波箔と平箔と
間に規定される多数の通路の方向に関し、前記担体の両
端面の少なくとも一方の端面の、前記波箔と平箔との接
触領域にのみ、放電接合するための液体状の接着剤を塗
布する工程と、該接着剤付着箇所に溶接粉を保持させる
工程と、該溶接粉を使用して前記端面を放電接合する工
程と、を含んでなる金属触媒担体の製造方法が提案され
る。According to the second aspect of the invention, a step of forming a substantially honeycomb-shaped metal carrier by laminating or winding metal corrugated foils and metal flat foils substantially alternately, and these corrugated foils and flat foils. With respect to the directions of a large number of passages defined between and, a liquid adhesive for discharge joining is applied only to the contact area between the corrugated foil and the flat foil on at least one of the end surfaces of the carrier. There is proposed a method for producing a metal catalyst carrier, which comprises: a step of carrying out welding, a step of holding welding powder at the place where the adhesive is attached, and a step of discharge-bonding the end face using the welding powder.
【０００７】[0007]
【作用】第１の発明では、ハニカム体の両端面の少なく
とも一方の端面に、放電接合するための液体状の接着剤
を塗布し、波箔と平箔との接触領域以外の領域に付着し
た接着剤を除去しているので、波箔と平箔とはハニカム
体の端面における波箔と平箔間の接触領域のみにて接合
され、もって、放電接合部の溶接ビードが波箔と平箔と
の接触部からはみ出すことはなく、したがって、溶接ビ
ードによってハニカム体の通路断面積が狭められ、排気
ガスの通気抵抗を低下させることはない。また、ハニカ
ム体の軸方向に関する端面においてのみ波箔と平箔との
間が接合されるので、熱応力に対する柔軟性或いは耐久
性を確保することができる。In the first aspect of the invention, a liquid adhesive for discharge joining is applied to at least one of the end faces of the honeycomb body and adhered to a region other than the contact region between the corrugated foil and the flat foil. Since the adhesive has been removed, the corrugated foil and the flat foil are bonded only at the contact area between the corrugated foil and the flat foil on the end face of the honeycomb body, so that the welding bead at the discharge bonding portion is bonded to the corrugated foil and the flat foil. Therefore, the weld beads do not narrow the passage cross-sectional area of the honeycomb body, and the exhaust gas ventilation resistance is not reduced. Further, since the corrugated foil and the flat foil are joined only at the end face in the axial direction of the honeycomb body, flexibility or durability against thermal stress can be secured.
【０００８】第２の発明では、ハニカム状担体の両端面
の少なくとも一方の端面の、波箔と平箔との接触領域に
のみ、放電接合するための液体状の接着剤を塗布してい
るので、第１の本発明と同様、波箔と平箔とは、ハニカ
ム体の端面における波箔と平箔間の接触領域のみにて接
合され、且つ、熱応力に対する柔軟性或いは耐久性を確
保することができる。In the second aspect of the invention, the liquid adhesive for discharge bonding is applied only to the contact area between the corrugated foil and the flat foil on at least one of the end surfaces of the honeycomb carrier. As in the first aspect of the present invention, the corrugated foil and the flat foil are bonded only in the contact area between the corrugated foil and the flat foil on the end face of the honeycomb body, and the flexibility or durability against thermal stress is secured. be able to.
【０００９】[0009]
【実施例】以下、添付図面を参照して本発明の実施例に
ついて詳細に説明する。図１は本発明によって製造され
たハニカム状金属触媒担体４の概略斜視図、図２は同触
媒担体４の端面４ａを部分的に拡大して示した正面図
（ａ）及び側面図（ｂ）である。金属波箔１と金属平箔
２とは交互に重ねて渦巻き状に巻回し、略ハニカム状の
金属担体４を形成し、この担体４の両端面４ａ又は４ｂ
のうちの少なくとも一方の端面（例えば、この金属触媒
担体４を自動車用エンジンの排気通路に設置した際、排
気ガスの流れ方向Ａに関して上流側の端面４ａ）におい
て、後述のように、放電接合により波箔１と平箔２との
間が固定接合される。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a honeycomb-shaped metal catalyst carrier 4 manufactured by the present invention, and FIG. 2 is a front view (a) and a side view (b) in which an end surface 4a of the catalyst carrier 4 is partially enlarged. Is. The metal corrugated foil 1 and the flat metal foil 2 are alternately laminated and spirally wound to form a substantially honeycomb-shaped metal carrier 4, and both end surfaces 4a or 4b of the carrier 4 are formed.
At least one of the end faces (for example, the end face 4a on the upstream side in the exhaust gas flow direction A when the metal catalyst carrier 4 is installed in the exhaust passage of an automobile engine) is connected by discharge joining as described later. The corrugated foil 1 and the flat foil 2 are fixedly joined.
【００１０】このように金属触媒担体４の端面４ａにお
いて、波箔１と平箔２との間を放電接合する場合に、本
発明では図２に示すように、溶接ビード３が波箔１と平
箔２との接触領域内、即ち端面４ａ上における波箔１と
平箔２との接触部の軸方向の投影範囲内Ｂ（或いは波箔
１と平箔２との厚さの範囲内）に存在する。なお、波箔
１と平箔２は、例えば２０％Ｃｒ−５％Ａｌ−７５％Ｆ
ｅの組成を有し、板厚５０μ程度の鋼を主成分とする箔
材料である。波箔１と平箔２の表面には絶縁被膜である
活性アルミナがコーティングされ、この活性アルミナの
被膜上に触媒である貴金属、例えば白金、パラジウム、
ロジウム等が含浸される。As described above, in the present invention, when the corrugated foil 1 and the flat foil 2 are discharge-bonded to each other on the end face 4a of the metal catalyst carrier 4, the welding bead 3 is connected to the corrugated foil 1 as shown in FIG. Within the contact area with the flat foil 2, that is, within the axial projection range B of the contact portion between the corrugated foil 1 and the flat foil 2 on the end surface 4a (or within the thickness range of the corrugated foil 1 and the flat foil 2). Exists in. The corrugated foil 1 and the flat foil 2 are, for example, 20% Cr-5% Al-75% F.
It is a foil material mainly composed of steel having a composition of e and a plate thickness of about 50 μm. The surface of the corrugated foil 1 and the flat foil 2 is coated with activated alumina which is an insulating coating, and a noble metal such as platinum, palladium which is a catalyst is coated on the coating of this activated alumina.
Rhodium is impregnated.
【００１１】図３〜図９は本発明による金属触媒担体の
製造過程を説明するための図である。まず、図３に示す
ように、波箔１と平箔２とを交互に重ねて渦巻き状に巻
回する。これにより、波箔１と平箔２との間に多数の通
路を規定する円筒形の金属担体ないしハニカム体４が形
成される。図４において、円筒ハニカム状の金属担体４
の軸方向の端面４ａ、４ｂのいずれか一方の端面、例え
ば、前述のように、自動車用エンジンの排気通路に設置
した際に排気ガスの流れ方向Ａに関して上流側となる端
面４ａの側を液状の接着剤５に浸し、この端面４ａに液
状の接着剤５を付着させる。3 to 9 are views for explaining the process of manufacturing the metal catalyst carrier according to the present invention. First, as shown in FIG. 3, the corrugated foil 1 and the flat foil 2 are alternately stacked and wound in a spiral shape. As a result, a cylindrical metal carrier or honeycomb body 4 defining a large number of passages between the corrugated foil 1 and the flat foil 2 is formed. In FIG. 4, a cylindrical honeycomb-shaped metal carrier 4
One of the end faces 4a, 4b in the axial direction is liquid, for example, as described above, the end face 4a side that is the upstream side in the exhaust gas flow direction A when installed in the exhaust passage of the automobile engine is liquid. Then, the liquid adhesive 5 is attached to the end surface 4a.
【００１２】次に、図５において、金属担体４の上側の
端面４ｂ、即ち液状の接着剤５を付着させた端面４ａと
は反対側の端面４ｂの側より圧縮空気６を適用する。こ
れにより、圧縮空気６は波箔１と平箔２との間の多数の
通路を通り、下側の端面４ａに付着している余分な接着
剤５を振り落とす。即ち、図６に示すように、金属担体
４の端面４ａにおいて波箔１と平箔２との接触部に付着
している液状の接着剤５はその表面張力により圧縮空気
６の作用に抗して維持されるが、それ以外の部位、例え
ば波箔１又は平箔２の側面又は端縁に付着している液状
接着剤５は圧縮空気６による作用に抗しきれずに下方へ
振り落とされ、除去される。Next, in FIG. 5, compressed air 6 is applied from the upper end face 4b of the metal carrier 4, that is, the end face 4b opposite to the end face 4a to which the liquid adhesive 5 is attached. As a result, the compressed air 6 passes through a large number of passages between the corrugated foil 1 and the flat foil 2, and shakes off the excess adhesive 5 adhering to the lower end surface 4a. That is, as shown in FIG. 6, the liquid adhesive 5 adhering to the contact portion between the corrugated foil 1 and the flat foil 2 on the end surface 4a of the metal carrier 4 resists the action of the compressed air 6 due to its surface tension. However, the liquid adhesive 5 adhering to the other portion, for example, the side surface or the edge of the corrugated foil 1 or the flat foil 2 cannot be resisted by the action of the compressed air 6 and is shaken down. To be removed.
【００１３】次に、図７において、金属担体４の接着剤
５が付着している端面４ａの側を微粉末の溶接粉７に浸
し、接着剤５の付着箇所に溶接粉７を付着・保持させ
る。このように溶接粉７は接着剤５により、端面４ａに
おける波箔１と平箔２との接触部に付着される。次に、
図８において、金属担体４の上側の端面４ｂ、即ち溶接
粉７を付着させた端面４ａとは反対側の端面４ｂの側よ
り再度圧縮空気６を適用する。これにより、前述の場合
と同様に、圧縮空気６は波箔１と平箔２との間の多数の
通路を通り、下側の端面４ａに付着している余分な溶接
粉７を振り落とす。これにより、図９に示すように、金
属担体４の端面４ａにおいて接着剤５が保持されている
波箔１と平箔２との接触部の投影範囲内（即ち、軸方向
における波箔１と平箔２の厚みの範囲内）では溶接粉７
が接着剤５に強固に付着されているので、溶接粉７は脱
落せず、それ以外の箇所に付着している溶接粉７は接着
剤５による保持がなされていないので、振り落とされ除
去される。Next, in FIG. 7, the end surface 4a side of the metal carrier 4 on which the adhesive 5 is adhered is dipped in the welding powder 7 of fine powder, and the welding powder 7 is adhered and held at the adhered portion of the adhesive 5. Let In this way, the welding powder 7 is attached to the contact portion between the corrugated foil 1 and the flat foil 2 on the end surface 4a with the adhesive 5. next,
In FIG. 8, compressed air 6 is applied again from the upper end surface 4b of the metal carrier 4, that is, the end surface 4b opposite to the end surface 4a to which the welding powder 7 is attached. As a result, as in the case described above, the compressed air 6 passes through many passages between the corrugated foil 1 and the flat foil 2 and shakes off the excess welding powder 7 adhering to the lower end surface 4a. As a result, as shown in FIG. 9, within the projection range of the contact portion between the flat foil 2 and the corrugated foil 1 on which the adhesive 5 is held on the end surface 4 a of the metal carrier 4 (that is, the corrugated foil 1 in the axial direction). In the range of the thickness of the flat foil 2), the welding powder 7
Is firmly adhered to the adhesive 5, the welding powder 7 does not fall off, and the welding powder 7 adhering to other points is not held by the adhesive 5 and is shaken off and removed. It
【００１４】このようにして、金属担体４の溶接粉７が
付着している端面４ａに対して公知の方法で放電接合を
行い、溶接粉７を溶融させて端面４ａにおける波箔１及
び平箔２間を強固に固着させ、図２に示すような溶接ビ
ード３を形成する。接着剤５の粘性或いは圧縮空気６の
速度等は、金属担体４の端面４ａにおいて波箔１と平箔
２との接触部に付着している接着剤５が表面張力により
保持されるように、なお且つそれ以外の部分に付着して
いる接着剤５が振り落とされる程度に選定される。In this manner, discharge welding is performed on the end surface 4a of the metal carrier 4 to which the welding powder 7 is adhered by a known method, the welding powder 7 is melted, and the corrugated foil 1 and the flat foil on the end surface 4a are melted. The two are firmly fixed to each other to form a weld bead 3 as shown in FIG. The viscosity of the adhesive 5 or the velocity of the compressed air 6 is set so that the adhesive 5 attached to the contact portion between the corrugated foil 1 and the flat foil 2 on the end surface 4a of the metal carrier 4 is retained by the surface tension. Further, it is selected such that the adhesive 5 attached to the other portions is shaken off.
【００１５】図１０は本発明による金属触媒担体の製造
方法の他の実施例を説明するため図である。この実施例
では、円筒ハニカム状の金属担体４の軸方向の端面４ａ
の側に、波箔１と平箔２との接触部に対応する多数の位
置に小穴９を有するパターン図型紙１０を宛てがい、そ
の反対側より表面に液状の接着剤５を保持したローラ１
１を転がし、これらの小穴９を介して金属担体４の軸方
向の端面４ａにおける波箔１と平箔２との接触部に接着
剤５を塗布する。以後は、実施例１の場合と同様、溶接
粉７を保持させた後、放電接合により端面４ａにおける
波箔１と平箔２との間を固定・接合する。FIG. 10 is a view for explaining another embodiment of the method for producing a metal catalyst carrier according to the present invention. In this embodiment, the axial end face 4a of the cylindrical honeycomb-shaped metal carrier 4 is
Roller 1 holding a pattern adhesive paper pattern 10 having small holes 9 at a large number of positions corresponding to the contact portion between corrugated foil 1 and flat foil 2, and holding liquid adhesive 5 on the surface from the opposite side.
1 is rolled, and the adhesive 5 is applied to the contact portion between the corrugated foil 1 and the flat foil 2 on the end face 4 a in the axial direction of the metal carrier 4 through these small holes 9. After that, as in the case of Example 1, after holding the welding powder 7, the corrugated foil 1 and the flat foil 2 on the end face 4a are fixed and joined by discharge joining.
【００１６】なお、以上の実施例では、波箔１と平箔２
とを重ねて渦巻き状に巻回して形成した金属触媒担体４
の場合について説明したが、本発明は上記のような形態
のものに限らず、ハニカム体を形成するあらゆる形態の
金属触媒担体にも適用できる。例えば、波箔１と平箔２
とを交互に平面的に積層した担体であってもよい。ま
た、上記実施例では金属触媒担体４の排気ガスの流れ方
向に関し、前面側のみを接合する場合について説明した
が、前後両側の端面を接合してもよい。また、上記実施
例（図８）では、圧縮空気を用いて余分な溶接粉７を除
去しているが、圧縮空気の代わりに振動等の物理的な作
用を金属触媒担体４に及ぼして余分な溶接粉を除去する
ようにしてもよい。In the above embodiment, the corrugated foil 1 and the flat foil 2 are used.
Metal catalyst carrier 4 formed by overlapping and spirally winding
Although the case has been described, the present invention is not limited to the above-described embodiment, but can be applied to any form of the metal catalyst carrier forming the honeycomb body. For example, corrugated foil 1 and flat foil 2
It may be a carrier in which and are alternately laminated in a plane. Further, in the above-mentioned embodiment, the case where only the front surface side is joined with respect to the flow direction of the exhaust gas of the metal catalyst carrier 4 has been described, but the front and rear end surfaces may be joined together. Further, in the above-described embodiment (FIG. 8), the excess welding powder 7 is removed by using compressed air, but a physical action such as vibration is exerted on the metal catalyst carrier 4 instead of the compressed air, and the excess welding powder 7 is removed. You may make it remove welding powder.
【００１７】[0017]
【発明の効果】以上に説明したように、本発明によれ
ば、波箔と平箔とはハニカム体の端面における接触領域
のみにて接合されているので、排気ガスの通気抵抗を低
下させず、したがって接合部により金属触媒担体の排気
ガス浄化能力を低下させることはない。また、金属触媒
担体の端面のみで、波箔と平箔間が接合されているの
で、熱応力に対する柔軟性を確保でき、熱的耐久性のあ
る金属触媒担体を得ることができる。As described above, according to the present invention, since the corrugated foil and the flat foil are bonded only at the contact area on the end face of the honeycomb body, the ventilation resistance of exhaust gas is not reduced. Therefore, the joint portion does not reduce the exhaust gas purifying ability of the metal catalyst carrier. Further, since the corrugated foil and the flat foil are joined only at the end face of the metal catalyst carrier, flexibility against thermal stress can be secured, and a metal catalyst carrier having thermal durability can be obtained.
【図１】本発明によって製造されたハニカム状金属触媒
担体の概略斜視図であり、端面の一部を拡大して示す。FIG. 1 is a schematic perspective view of a honeycomb-shaped metal catalyst carrier manufactured according to the present invention, showing a part of an end face in an enlarged manner.
【図２】図１に示した金属触媒担体の端面の一部を更に
拡大して示す正面図（ａ）及び側面図（ｂ）である。2 is a front view (a) and a side view (b) showing a part of the end face of the metal catalyst carrier shown in FIG. 1 in a further enlarged manner.
【図３】本発明の金属触媒担体の製造方法の実施例にお
ける金属担体（ハニカム体）の形成した状態を示す。FIG. 3 shows a state in which a metal carrier (honeycomb body) is formed in the example of the method for producing a metal catalyst carrier of the present invention.
【図４】上記実施例において金属担体の端面に液状の接
着剤を塗布する工程を示す。FIG. 4 shows a step of applying a liquid adhesive to the end surface of the metal carrier in the above-mentioned embodiment.
【図５】上記実施例において余分な接着剤を除去する工
程を示す。FIG. 5 shows a process of removing excess adhesive in the above-mentioned embodiment.
【図６】余分な接着剤が除去された金属担体の斜視図で
ある。FIG. 6 is a perspective view of the metal carrier with excess adhesive removed.
【図７】上記実施例において溶接粉を保持させる工程を
示す。FIG. 7 shows a step of holding welding powder in the above-mentioned embodiment.
【図８】上記実施例において余分な溶接粉を除去する工
程を示す。FIG. 8 shows a step of removing excess welding powder in the above embodiment.
【図９】余分な溶接粉が除去され状態の金属触媒担体の
端面の一部を示す斜視図である。FIG. 9 is a perspective view showing a part of the end surface of the metal catalyst carrier in a state where excess welding powder is removed.
【図１０】本発明の金属触媒担体の製造方法の他の実施
例を示す概略斜視図である。FIG. 10 is a schematic perspective view showing another embodiment of the method for producing a metal catalyst carrier of the present invention.
１…波箔 ２…平箔 ３…溶接ビード ４…ハニカム状金属触媒担体 ４ａ、４ｂ…端面 ５…液状接着剤 ６…圧縮空気 ７…溶接粉 ８…小穴 ９…パターン図型紙 １０…ローラ Ａ…排気ガスの流れ方向 Ｂ…波箔と平箔の接触部の投影領域 DESCRIPTION OF SYMBOLS 1 ... Corrugated foil 2 ... Flat foil 3 ... Welding bead 4 ... Honeycomb-shaped metal catalyst carrier 4a, 4b ... End surface 5 ... Liquid adhesive 6 ... Compressed air 7 ... Welding powder 8 ... Small hole 9 ... Pattern figure pattern 10 ... Roller A ... Exhaust gas flow direction B: Projection area of contact area between corrugated foil and flat foil
Claims (2)
積層又は巻回して略ハニカム状の金属担体を形成する工
程と、これらの波箔と平箔と間に規定される多数の通路
の方向に関し、前記担体の両端面の少なくとも一方の端
面に、放電接合するための液体状の接着剤を塗布する工
程と、該端面における前記波箔と平箔との接触領域以外
の領域に付着した接着剤を除去する工程と、残りの接着
剤付着箇所に溶接粉を保持させる工程と、該溶接粉を使
用して前記端面を放電接合する工程と、を含んでなる金
属触媒担体の製造方法。1. A step of forming a substantially honeycomb-shaped metal carrier by laminating or winding a metal corrugated foil and a metal flat foil substantially alternately, and a large number defined between the corrugated foil and the flat foil. With respect to the direction of the passage, the step of applying a liquid adhesive for discharge bonding to at least one end face of both end faces of the carrier, and a region other than the contact region between the corrugated foil and the flat foil on the end face. Of the metal catalyst carrier, which comprises a step of removing the adhesive agent adhered to, a step of holding the welding powder at the remaining adhesive adhesion points, and a step of discharge-bonding the end face using the welding powder. Production method.
積層又は巻回して略ハニカム状の金属担体を形成する工
程と、これらの波箔と平箔と間に規定される多数の通路
の方向に関し、前記担体の両端面の少なくとも一方の端
面の、前記波箔と平箔との接触領域にのみ、放電接合す
るための液体状の接着剤を塗布する工程と、該接着剤付
着箇所に溶接粉を保持させる工程と、該溶接粉を使用し
て前記端面を放電接合する工程と、を含んでなる金属触
媒担体の製造方法。2. A step of forming a substantially honeycomb-shaped metal carrier by laminating or winding a metal corrugated foil and a metal flat foil substantially alternately, and a large number defined between the corrugated foil and the flat foil. With respect to the direction of the passage, the step of applying a liquid adhesive for discharge bonding only to the contact area between the corrugated foil and the flat foil on at least one of the end surfaces of the carrier; A method for producing a metal catalyst carrier, comprising: a step of holding welding powder at an adhesion site; and a step of discharge-bonding the end face using the welding powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5104420A JPH06315638A (en) | 1993-04-30 | 1993-04-30 | Production of metallic catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5104420A JPH06315638A (en) | 1993-04-30 | 1993-04-30 | Production of metallic catalyst carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06315638A true JPH06315638A (en) | 1994-11-15 |
Family
ID=14380207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5104420A Withdrawn JPH06315638A (en) | 1993-04-30 | 1993-04-30 | Production of metallic catalyst carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06315638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005512807A (en) * | 2002-01-03 | 2005-05-12 | エミテク・ゲゼルシャフト・フュール・エミシオーンテクノロギー・ミット・ベシュレンクテル・ハフツング | Honeycomb structure and method for applying adhesive and brazing material to honeycomb structure |
-
1993
- 1993-04-30 JP JP5104420A patent/JPH06315638A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005512807A (en) * | 2002-01-03 | 2005-05-12 | エミテク・ゲゼルシャフト・フュール・エミシオーンテクノロギー・ミット・ベシュレンクテル・ハフツング | Honeycomb structure and method for applying adhesive and brazing material to honeycomb structure |
| US7562805B2 (en) | 2002-01-03 | 2009-07-21 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Honeycomb structure and method for applying adhesive and brazing material to the structure |
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