JP2008104918A - Metal catalyst carrier and its manufacturing method - Google Patents

Metal catalyst carrier and its manufacturing method Download PDF

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JP2008104918A
JP2008104918A JP2006288401A JP2006288401A JP2008104918A JP 2008104918 A JP2008104918 A JP 2008104918A JP 2006288401 A JP2006288401 A JP 2006288401A JP 2006288401 A JP2006288401 A JP 2006288401A JP 2008104918 A JP2008104918 A JP 2008104918A
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plates
catalyst carrier
metal catalyst
corrugated
flat
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Akio Sano
明男 佐野
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Marelli Corp
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Calsonic Kansei Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal catalyst carrier and its manufacturing method which can improve durability by increasing the rigidity of an edge part of piled up long pitch corrugated plates and short pitch corrugated plates or flat plates, protruded in the center hole of the metal catalyst carrier. <P>SOLUTION: Two pairs of thin metal corrugated plates 11 and flat plates 12 are alternately piled up, and multiply wound around the outer periphery of a winding core 2 while inserting the edge part into a slit 21 formed in the winding core 2, thereby forming a honeycomb structure having a number of cell passages passing exhaust gas, between the corrugated plate 11 and the flat plate 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、金属製触媒担体及び金属製触媒担体の製造方法に関する。   The present invention relates to a metal catalyst carrier and a method for producing a metal catalyst carrier.

従来の金属製触媒担体として、金属製薄板の大波板と小波板または平板を1対重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路を有するハニカム状に形成された構造のものが知られている(例えば、特許文献1参照。)。
特開2005−313082号公報
As a conventional metal catalyst carrier, a pair of large corrugated metal plates and small corrugated plates or flat plates are overlapped, and the outer periphery of the core is inserted into an insertion groove or slit formed on the core. There is known a structure formed in a honeycomb shape having a large number of cell passages through which exhaust gas passes between each of the large corrugated plates and the small corrugated plates or flat plates (see, for example, Patent Document 1). .)
JP 2005-313082 A

しかしながら、従来例の触媒担体にあっては、上述のように構成されるため、巻き芯に巻回された金属製触媒担体から、巻き芯が抜き取られることにより、金属製触媒担体の中心部に大きな孔が形成され、この中心孔には、巻き芯の差し込み溝に差し込まれた大波板と小波板または平板が1対重ねられた端縁部が突出した状態になるため、剛性が低く耐久性の面で問題がある。   However, since the catalyst carrier of the conventional example is configured as described above, by removing the winding core from the metallic catalyst carrier wound around the winding core, the central part of the metallic catalyst carrier is formed. A large hole is formed, and the center hole is in a state in which the end portion where a pair of a large wave plate and a small wave plate or a flat plate inserted into the insertion groove of the winding core protrudes, and thus has low rigidity and durability. There is a problem in terms of.

特に、近年、排気ガス浄化規制が厳しくなる傾向にあり、それに対応するために、触媒コンバータを熱負荷の厳しいマニホールド直下に配置されるようになったため、金属製触媒担体の中心孔内にその先端が浮いた状態にある大波板と小波板または平板が1対重ねられた端縁部に大きな外力(押し倒すような力)が作用することで、破損する虞があり、これにより、耐久性の面で問題がある。   In particular, in recent years, exhaust gas purification regulations have become stricter, and in order to cope with this, the catalytic converter has been arranged directly under the manifold with severe heat load, so that the tip of the catalytic converter is placed in the center hole of the metal catalyst carrier. A large external force (force that pushes down) acts on the edge of a pair of large wave plate and small wave plate or flat plate that are in a floating state, which may cause damage. There is a problem.

本発明の解決しようとする課題は、金属製触媒担体の中心孔内に突出した状態にある大波板と小波板または平板が重ねられた端縁部の剛性を高めることにより、耐久性を向上させることができる金属製触媒担体及び金属製触媒担体の製造方法を提供することにある。   The problem to be solved by the present invention is to improve the durability by increasing the rigidity of the edge portion where the large wave plate and the small wave plate or flat plate in a state of protruding into the center hole of the metal catalyst carrier are overlapped. Another object of the present invention is to provide a metal catalyst carrier and a method for producing the metal catalyst carrier.

上記課題を解決するため請求項1記載の金属製触媒担体は、金属製薄板の大波板と小波板または平板を2対以上交互に重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路を有するハニカム状に形成されていることを特徴とする手段とした。   In order to solve the above-mentioned problem, a metal catalyst carrier according to claim 1 is provided with an insertion groove formed by alternately stacking two or more pairs of a large corrugated plate and a small corrugated plate or a flat plate of metal, and having an edge portion as a winding core. It is formed in a honeycomb shape having a large number of cell passages through which exhaust gas passes between each of the large wave plates and the small wave plates or flat plates by being wound around the outer periphery of the winding core while being inserted into the slit. A feature means.

請求項2記載の金属製触媒担体の製造方法は、金属製薄板の大波板と小波板または平板を2対以上交互に重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路有するハニカム状に形成するようにしたことを特徴とする手段とした。   According to a second aspect of the present invention, there is provided a method for producing a metal catalyst carrier, wherein two or more pairs of large metal corrugated plates and small corrugated plates or flat plates are alternately stacked and the end edges thereof are formed in insertion grooves or slits formed on a winding core. It is characterized in that it is formed in a honeycomb shape having a large number of cell passages through which exhaust gas passes between each of the large wave plate and the small wave plate or flat plate by being wound around the outer periphery of the winding core while being inserted. As a means.

請求項1記載の金属製触媒担体及び請求項2記載の金属製触媒担体の製造方法では、上述のように、金属製薄板の大波板と小波板または平板を2対以上交互に重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路有するハニカム状に形成するようにしたことで、金属製触媒担体の中心孔内に突出した状態にある大波板と小波板または平板が2対以上重ねられた状態の端縁部になることで、この部分の剛性を高めることが可能になる。   In the method for producing the metal catalyst carrier according to claim 1 and the metal catalyst carrier according to claim 2, as described above, two or more pairs of metal corrugated plates and corrugated plates or plates are alternately stacked, and the ends thereof Numerous cells through which exhaust gas passes between each corrugated plate and the corrugated plate or flat plate by being wound around the outer periphery of the core while being inserted into an insertion groove or slit formed in the core. By forming it into a honeycomb shape having passages, it becomes an edge portion in which two or more pairs of large wave plates and small wave plates or flat plates projecting into the center hole of the metal catalyst carrier are stacked. The rigidity of this part can be increased.

また、中心孔の隙間面積が少なくなるため、中心孔を流れる排気ガスの流量が減少し、これにより、端縁部に作用する外力が少なくなる。   In addition, since the clearance area of the center hole is reduced, the flow rate of the exhaust gas flowing through the center hole is reduced, thereby reducing the external force acting on the edge portion.

従って、金属製触媒担体の耐久性を向上させることができるようになるという効果が得られる。
また、金属製薄板の大波板と小波板または平板2対以上交互に重ねた状態で巻き芯の外周に巻回させるようにしたことで、巻き芯の回転数を減らすことができ、これにより作業効率を高めることができるようになる。
Therefore, it is possible to improve the durability of the metal catalyst carrier.
In addition, it is possible to reduce the number of rotations of the winding core by winding it around the outer circumference of the winding core in a state where two or more pairs of metal large and small corrugated plates or flat plates are alternately stacked. Efficiency can be increased.

以下にこの発明の実施例を図面に基づいて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

この実施例の金属製触媒担体は、請求項1、2に記載の発明に対応する。   The metal catalyst carrier of this example corresponds to the inventions described in claims 1 and 2.

まず、この実施例の金属製触媒担体を図面に基づいて説明する。   First, the metal catalyst carrier of this embodiment will be described with reference to the drawings.

図1はこの実施例の金属製触媒担体を示す平面図、図2は波板と平板を重ねて巻回する途中の状態を示す斜視図である。   FIG. 1 is a plan view showing a metal catalyst carrier of this embodiment, and FIG. 2 is a perspective view showing a state in the middle of winding a corrugated plate and a flat plate.

この実施例の金属製触媒担体1は、30μmの金属製薄板の波板(大波板)11と平板(小波板または平板)12を交互に重ね、平板12を外側にして多重に巻回したハニカム状に形成されたもので、このハニカム通路(セル通路)表面には、アルミナ等からなる触媒担持体層に触媒成分(Pt等)が担持されることにより、排気ガス浄化触媒とされる。そして、内燃機関の排気経路に配置されることにより、排気ガス中の有害物質(HC、CO、NOx等)を触媒反応で浄化させ、無害物質(HO、CO、N)として排出させる働きをする。 The metal catalyst carrier 1 of this embodiment is a honeycomb structure in which corrugated plates (large corrugated plates) 11 and flat plates (small corrugated plates or flat plates) 12 of 30 μm thin metal plates are alternately stacked, and the plates 12 are wound outwardly. A catalyst component (Pt or the like) is supported on a catalyst carrier layer made of alumina or the like on the surface of the honeycomb passage (cell passage), thereby forming an exhaust gas purification catalyst. And, by arranging in the exhaust path of the internal combustion engine, harmful substances (HC, CO, NOx, etc.) in the exhaust gas are purified by catalytic reaction and discharged as harmless substances (H 2 O, CO 2 , N 2 ). To work.

そして、この実施例では、図2に示すように、金属製薄板の波板11と平板12を2対交互に重ねてその端縁部を巻き芯2に形成されたスリット21内に差し込んだ状態で、該巻き芯2を矢印方向に回転させることによって該巻き芯2の外周に多重に巻回した後、該巻き芯2を引き抜くことにより、図1に示すように、波板11と平板12との間に排気ガスが通過する多数のセル通路を有するハニカム状の金属製触媒担体1に形成されている。   In this embodiment, as shown in FIG. 2, two pairs of metal thin corrugated plates 11 and flat plates 12 are alternately stacked, and the edge portions thereof are inserted into slits 21 formed in the core 2. Then, after the winding core 2 is rotated in the direction of the arrow to wrap around the outer periphery of the winding core 2 in a multiple manner, the winding core 2 is pulled out, and as shown in FIG. Are formed in a honeycomb-shaped metal catalyst carrier 1 having a large number of cell passages through which exhaust gas passes.

次に、実施例の作用・効果を説明する。
この実施例の金属製触媒担体では、上述のように、金属製薄板の波板11と平板12を2対交互に重ねてその端縁部を巻き芯2に形成されたスリット21内に差し込んだ状態で該巻き芯2の外周に多重に巻回して波板11と平板12との間に排気ガスが通過する多数のセル通路有するハニカム状に形成したことで、金属製触媒担体1の中心孔13内に突出した状態にある波板11と平板12が2対以上重ねられた状態の端縁部14になることで、この端縁部14の剛性が高められた状態になる。
Next, functions and effects of the embodiment will be described.
In the metal catalyst carrier of this embodiment, as described above, two pairs of metal thin corrugated plates 11 and flat plates 12 are alternately stacked and the edge portions thereof are inserted into the slits 21 formed in the winding core 2. In this state, the metal catalyst carrier 1 is formed into a honeycomb shape having a large number of cell passages through which exhaust gas passes between the corrugated plate 11 and the flat plate 12 by being wound around the outer periphery of the core 2. By forming the end edge portion 14 in a state where two or more pairs of the corrugated plate 11 and the flat plate 12 in a state of projecting into the end portion 13 are overlapped, the rigidity of the end edge portion 14 is increased.

また、中心孔13の隙間面積が少なくなるため、中心孔13を流れる排気ガスの流量が減少し、これにより、端縁部14に作用する外力が少なくなる。   Further, since the clearance area of the center hole 13 is reduced, the flow rate of the exhaust gas flowing through the center hole 13 is reduced, and thereby the external force acting on the end edge portion 14 is reduced.

従って、金属製触媒担体1の耐久性を向上させることができるようになるという効果が得られる。
また、金属製薄板の波板11と平板12を2対交互に重ねた状態で巻き芯2の外周に巻回させるようにしたことで、巻き芯2の回転数を減らすことができ、これにより作業効率を高めることができるようになる。
Therefore, the effect that the durability of the metal catalyst carrier 1 can be improved is obtained.
In addition, the number of rotations of the core 2 can be reduced by winding the metal corrugated sheet 11 and the flat plate 12 around the outer periphery of the core 2 in a state where two pairs are alternately stacked. Work efficiency can be improved.

以上本実施例を説明してきたが、本発明は上述の実施例に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等があっても、本発明に含まれる。   Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.

例えば、実施例では、平板12が外側になるように巻回させたが、波板11が外側になるようにしてもよい。   For example, in the embodiment, the flat plate 12 is wound outside, but the corrugated plate 11 may be arranged outside.

また、実施例では、巻き芯2に形成されたスリット21に差し込むようにしたが、溝に差し込むようにしてもよい。   In the embodiment, it is inserted into the slit 21 formed in the winding core 2, but it may be inserted into the groove.

また、波板11と平板12には波状に成形する前に予め所定間隔のもとに所定長さにて複数のスリット孔を形成させるようにしてもよい。   Further, a plurality of slit holes may be formed in the corrugated plate 11 and the flat plate 12 with a predetermined length at a predetermined interval in advance before forming into a corrugated shape.

実施例の金属製触媒担体を示す平面図である。It is a top view which shows the metal catalyst carrier of an Example. 波板と平板を重ねて巻回する途中の状態を示す斜視図である。It is a perspective view which shows the state in the middle of winding up a corrugated sheet and a flat plate.

符号の説明Explanation of symbols

1 金属製触媒担体
11 波板(大波板)
12 平板(小波板または平板)
2 巻き芯
21 スリット
13 中心孔
14 端縁部
1 Metal catalyst carrier 11 Corrugated plate (large corrugated plate)
12 Flat plate (wave plate or flat plate)
2 Winding core 21 Slit 13 Center hole 14 Edge

Claims (2)

金属製薄板の大波板と小波板または平板を2対以上交互に重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路を有するハニカム状に形成されていることを特徴とする金属製触媒担体。   Two or more pairs of large corrugated metal plates and small corrugated plates or flat plates made of metal are alternately stacked, and the edges are inserted into insertion grooves or slits formed on the core, and then wound around the outer periphery of the core. A metal catalyst carrier characterized in that it is formed in a honeycomb shape having a large number of cell passages through which exhaust gas passes between each large wave plate and the small wave plate or flat plate. 金属製薄板の大波板と小波板または平板を2対以上交互に重ねてその端縁部を巻き芯に形成された差し込み溝またはスリット内に差し込んだ状態で該巻き芯の外周に多重に巻回して各大波板と小波板または平板との間に排気ガスが通過する多数のセル通路有するハニカム状に形成するようにしたことを特徴とする金属製触媒担体の製造方法。   Two or more pairs of large corrugated metal plates and small corrugated plates or flat plates made of metal are alternately stacked, and the edges are inserted into insertion grooves or slits formed on the core, and then wound around the outer periphery of the core. A method for producing a metal catalyst carrier, characterized in that it is formed in a honeycomb shape having a large number of cell passages through which exhaust gas passes between each large wave plate and the small wave plate or flat plate.
JP2006288401A 2006-10-24 2006-10-24 Metal catalyst carrier and its manufacturing method Withdrawn JP2008104918A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106876769A (en) * 2015-11-05 2017-06-20 Ckd株式会社 Coiler device
CN108224533A (en) * 2018-01-03 2018-06-29 华帝股份有限公司 A kind of kitchen range honeycomb ceramics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106876769A (en) * 2015-11-05 2017-06-20 Ckd株式会社 Coiler device
CN106876769B (en) * 2015-11-05 2019-03-05 Ckd株式会社 Winding device
CN108224533A (en) * 2018-01-03 2018-06-29 华帝股份有限公司 A kind of kitchen range honeycomb ceramics

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