JP3316857B2 - Method for producing porous carrier - Google Patents
Method for producing porous carrierInfo
- Publication number
- JP3316857B2 JP3316857B2 JP14862391A JP14862391A JP3316857B2 JP 3316857 B2 JP3316857 B2 JP 3316857B2 JP 14862391 A JP14862391 A JP 14862391A JP 14862391 A JP14862391 A JP 14862391A JP 3316857 B2 JP3316857 B2 JP 3316857B2
- Authority
- JP
- Japan
- Prior art keywords
- pair
- metal
- porous carrier
- joined
- electrode
- 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
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000002184 metal Substances 0.000 claims description 37
- 229910052751 metal Inorganic materials 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 238000005304 joining Methods 0.000 description 6
- 230000035882 stress Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は自動車排ガス用の金属触
媒担体等に用いられる多孔性担体の製造方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a porous carrier used as a metal catalyst carrier for automobile exhaust gas.
【０００２】[0002]
【従来の技術】従来この種の多孔性担体としては、例え
ば特開昭６１−１９９５７４号公報に記載されているご
とく、金属製の波板と金属製の平板とを重ねた状態で巻
回し、該巻回時に両板の両端部分に半田箔を介在し、こ
の巻回構成とされた金属体を半田箔を介して接合した構
成の多孔性担体が知られている。2. Description of the Related Art Conventionally, as a porous carrier of this type, for example, as described in JP-A-61-199574, a metal corrugated sheet and a metal flat sheet are wound in a state of being stacked, There is known a porous carrier having a structure in which solder foils are interposed at both ends of both plates at the time of winding, and a metal body having the wound structure is joined via the solder foil.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のものでは、
冷熱サイクルの繰り返しにより、熱膨張、収縮が発生し
て担体が変形するという解決すべき課題がある。SUMMARY OF THE INVENTION In the above prior art,
There is a problem to be solved in which the carrier is deformed due to thermal expansion and contraction due to repetition of the cooling / heating cycle.
【０００４】かかる課題について検討したところ、金属
体の端面部において波板と平板との接点が全て接合され
ていて波板と平板とはリジットな構成であるため、熱膨
張、収縮による応力の逃げ場がなく、そのため該波板と
平板とに応力による変形を来すということが分かった。[0004] In consideration of such a problem, the contact points of the corrugated plate and the flat plate are all joined at the end face of the metal body, and the corrugated plate and the flat plate have a rigid structure. Therefore, it was found that the corrugated plate and the flat plate were deformed by stress.
【０００５】[0005]
【課題を解決するための手段】本発明はかかる課題を解
決するために、鋭意、研究したところ、一対の金属部材
が、その両面間に軸線方向へ流体通路が形成されるよう
に巻回構成とされた金属体を有し、該金属体の端面部に
おいて一対の金属部材を接合して通路を確保した構成の
多孔性担体の製造方法であって、端面部の一方の端部に
一方の電極を配置し、他方の端部に対して、他方の端部
の一対の金属部材を接合したい領域のみを凸部とした他
方の電極を配置した後、両電極の間に電圧を印加するこ
とにより、一対の金属部材の他方の端部と他方の電極と
の間に放電を開始させることにより、一対の金属部材が
他方の端部において接合されるという技術的手段によっ
て、上記課題を解決しようとするものである。 In order to solve the above problems, the present invention has been intensively studied. As a result, a pair of metal members are wound so that a fluid passage is formed in the axial direction between both surfaces thereof. A method of manufacturing a porous carrier having a configuration in which a pair of metal members are joined at an end face portion of the metal body to secure a passage, wherein one end of the end face portion is provided.
Place one electrode and the other end
Only the area where the pair of metal members is to be joined
After placing one of the electrodes, apply a voltage between both electrodes.
With this, the other end of the pair of metal members and the other electrode
By starting the discharge during the period, the pair of metal members
By technical means of joining at the other end
Thus, the above-mentioned problem is to be solved.
【０００６】[0006]
【作用】本発明の製造方法では、一対の金属部材の他方
の端部と前記他方の電極との間に放電を開始させること
で、一対の金属部材の一部を他方の端部において接合さ
せることができる。そのため、きわめて容易に、一対の
金属部材の端部において、接合領域と非接合領域とが混
在した多孔性担体を得ることができる。そのため、冷熱
サイクルによる熱膨張、収縮によって発生した応力は非
接合領域側に逃げる事ができる。この結果、応力は緩和
され、一対の金属部材の変形、ひいては担体の変形を抑
制できる。 According to the manufacturing method of the present invention, the other of the pair of metal members is used.
To start a discharge between the end of the electrode and the other electrode
Then, a part of the pair of metal members is joined at the other end.
Can be made. Therefore, very easily, a pair
At the end of the metal member, the bonded area and the non-bonded area are mixed.
Porous carrier can be obtained. So cold
The stress generated by thermal expansion and contraction due to cycles is
It can escape to the joining area side. As a result, the stress is relieved, and the deformation of the pair of metal members, and thus the deformation of the carrier, can be suppressed.
【０００７】[0007]
【発明の効果】多孔性担体の通路のつぶれ、あるいは該
担体の側面の変形を抑制することができ、従って経時変
化に対する耐久性を向上できる。As described above, the collapse of the passage of the porous carrier or the deformation of the side surface of the carrier can be suppressed, and therefore, the durability against aging can be improved.
【０００８】[0008]
【実施例】以下、本発明を図に示す実施例について説明
する。先ず、第１実施例を示す図１〜図４において、１
は金属製の平板、２は金属製の波板、３はこれら平板１
と波板２とを重ねて単に巻回すことで得られる円筒状の
金属体、４は平板１と波板２との間に形成された通路を
示す。なお、平板１と波板２とは、フェライト系耐熱ス
テンレス（７５Ｆｅ−２０Ｃｒ−５Ａｌ−ＲＥＭ）製
で、厚さ５０μｍ、波板２のピッチは１．２５ｍｍであ
る。BRIEF DESCRIPTION OF THE DRAWINGS FIG. First, in FIGS. 1 to 4 showing the first embodiment, 1
Is a metal flat plate, 2 is a metal corrugated plate, 3 is these flat plates.
The cylindrical metal body 4 obtained by simply winding the corrugated sheet 2 and the corrugated sheet 2 indicates a passage formed between the flat plate 1 and the corrugated sheet 2. The flat plate 1 and the corrugated plate 2 are made of heat-resistant ferritic stainless steel (75Fe-20Cr-5Al-REM), have a thickness of 50 μm, and have a pitch of 1.25 mm.
【０００９】この金属体３を槽５内の加工液６（例えば
ケロシン油）中に浸漬し、金属体３の一方の端部を放電
加工機の下側電極７ｂ上に配置し、上側電極７ａを金属
体３の他方の端部に隙間を介して配置する。なお、上側
電極７ａは図３に示すように、接合したい領域のみを凸
部とした構成である。そして、両電極７ａ，ｂの間に例
えば６０Ｖの高電圧を印加し、金属体３と上側電極７ａ
との間に放電を開始させ、例えば２４Ａの電流を金属体
３に流す。かかる放電により、金属体３の端部の温度が
上昇し、該端部において平板１と波板２とが溶融し、そ
の接点が一瞬にして溶着される。The metal body 3 is immersed in a working fluid 6 (for example, kerosene oil) in a tank 5, one end of the metal body 3 is arranged on a lower electrode 7b of an electric discharge machine, and an upper electrode 7a At the other end of the metal body 3 with a gap therebetween. In addition, as shown in FIG. 3, the upper electrode 7a has a configuration in which only a region to be joined is a convex portion. Then, a high voltage of, for example, 60 V is applied between the electrodes 7a and 7b, and the metal body 3 and the upper electrode 7a are applied.
Then, a discharge of, for example, 24 A flows through the metal body 3. Due to such discharge, the temperature of the end portion of the metal body 3 rises, and the flat plate 1 and the corrugated plate 2 melt at the end portion, and their contacts are instantaneously welded.
【００１０】ここで放電加工機による接合パターンを模
式的に示したのが図４であり、斜線部分が接合部位を示
している。このように、金属体３の端面部における平板
１と波板２とは、接合領域（斜線部）と非接合部（白抜
き部）とが混在した態様となる。FIG. 4 schematically shows a joining pattern by the electric discharge machine, and a hatched portion indicates a joining portion. As described above, the flat plate 1 and the corrugated plate 2 on the end surface of the metal body 3 have a mode in which the joining region (shaded portion) and the non-joined portion (white portion) are mixed.
【００１１】[0011]
【００１２】[0012]
【００１３】なお、上記実施例は何れも金属体３，３ａ
の一方の端面側の平板１と波板２とを接合したが、他方
も含めて両側を接合しても勿論よい。また、上記実施例
は何れも平板１と波板２との接合パターンが図４のごと
き態様であるが、例えば図８（ａ）〜（ｃ）のごとき態
様であっても勿論よい。In each of the above embodiments, the metal members 3, 3a
Although the flat plate 1 and the corrugated plate 2 on one end face side are joined, both sides including the other may be joined. Further, in each of the above embodiments, the joining pattern between the flat plate 1 and the corrugated plate 2 is as shown in FIG. 4, but may be, for example, as shown in FIGS. 8 (a) to 8 (c).
【００１４】更に、波板同士を組合せて通路４を形成し
てもよいし、金属体３の外観形状としてはレーストラッ
ク状の他に円筒状、楕円状等種々の形状が考えられるこ
とは言うまでもない。Further, it is needless to say that the passage 4 may be formed by combining corrugated plates, and various shapes such as a cylindrical shape and an elliptical shape can be considered as the external shape of the metal body 3 in addition to the race track shape. No.
【図１】担体を構成する金属体の斜視図である。FIG. 1 is a perspective view of a metal body constituting a carrier.
【図２】第１実施例における担体の製造方法を示す斜視
図である。FIG. 2 is a perspective view showing a method for manufacturing a carrier in the first embodiment.
【図３】第１実施例に用いた上側電極を示す斜視図であ
る。FIG. 3 is a perspective view showing an upper electrode used in the first embodiment.
【図４】接合領域と非接合領域とのパターンを示す図で
ある。FIG. 4 is a diagram showing a pattern of a bonded region and a non-bonded region.
【図５】接合領域と非接合領域とのパターンの他の例を
示す図である。 FIG. 5 shows another example of a pattern of a bonded region and a non-bonded region.
FIG.
１ 平板 ２ 波板 ３ 金属体 ３ａ 金属体 ４ 通路 ５ 槽 ６ 加工液 ７ａ 下側電極 ７ｂ 上側電極 ８ 凸部 ９ 接着部 １０ マスキング部材 １１ ろう材 １２ レーザビーム DESCRIPTION OF SYMBOLS 1 Flat plate 2 Corrugated plate 3 Metal body 3a Metal body 4 Passage 5 Tank 6 Processing liquid 7a Lower electrode 7b Upper electrode 8 Convex part 9 Adhesive part 10 Masking member 11 Brazing material 12 Laser beam
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小島 昭和 愛知県西尾市下羽角町岩谷14番地 株式 会社日本自動車部品総合研究所内 (72)発明者 松尾 清貴 愛知県西尾市下羽角町岩谷14番地 株式 会社日本自動車部品総合研究所内 (72)発明者 小須田 通 愛知県西尾市下羽角町岩谷14番地 株式 会社日本自動車部品総合研究所内 (72)発明者 伊藤 啓司 愛知県刈谷市昭和町１丁目１番地 日本 電装株式会社内 (56)参考文献 特開 平３−94835（ＪＰ，Ａ) 特開 昭62−45345（ＪＰ，Ａ) 特開 平２−102744（ＪＰ，Ａ) 特開 昭64−63045（ＪＰ，Ａ) 実開 昭62−156112（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 38/74 B01D 53/86 F01N 3/28 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Showa Kojima 14 Iwatani, Shimowakaku-cho, Nishio-shi, Aichi Prefecture Inside the Japan Automobile Parts Research Institute (72) Inventor Kiyotaka 14-Iwatani, Shimohakaku-cho, Nishio-shi, Aichi Japan Inside the Auto Parts Research Institute (72) Inventor Toru Kosuda 14 Iwatani, Shimowasumi-machi, Nishio-shi, Aichi Prefecture Inside the Japan Auto Parts Research Institute (72) Inventor Keiji Ito 1-1-1, Showa-cho, Kariya-shi, Aichi Japan Nippon Denso Co., Ltd. (56) References JP-A-3-94835 (JP, A) JP-A-62-45345 (JP, A) JP-A-2-102744 (JP, A) JP-A-64-63045 (JP, A) 62-156112 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) B01J 21/00-38/74 B01D 53/86 F01N 3/28
Claims (1)
向へ流体通路が形成されるように巻回構成とされた金属
体を有し、該金属体の端面部において前記一対の金属部
材を接合して前記通路を確保した構成の多孔性担体の製
造方法であって、前記端面部の一方の端部に一方の電極を配置し、他方の
端部に対して、他方の端部の一対の金属部材を接合した
い領域のみを凸部とした他方の電極を配置した後、 両電極の間に電圧を印加することにより、前記一対の金
属部材の他方の端部と前記他方の電極との間に放電を開
始させることにより、前記一対の金属部材が他方の端部
において接合されることを特徴とする多孔性担体の製造
方法。 1. A pair of metal members having a metal member wound so that a fluid passage is formed in the axial direction between the two members, and the pair of metal members are provided at end portions of the metal member. Of a porous carrier having a configuration in which
A granulation how, the one electrode disposed on one end portion of said end face, the other
A pair of metal members at the other end were joined to the end.
After arranging the other electrode having only the convex portion as the convex portion , a voltage is applied between the two electrodes to thereby form the pair of gold electrodes.
Discharge between the other end of the metal member and the other electrode.
By starting, the pair of metal members is
Of porous carrier characterized by being joined in
Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14862391A JP3316857B2 (en) | 1991-06-20 | 1991-06-20 | Method for producing porous carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14862391A JP3316857B2 (en) | 1991-06-20 | 1991-06-20 | Method for producing porous carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04371237A JPH04371237A (en) | 1992-12-24 |
| JP3316857B2 true JP3316857B2 (en) | 2002-08-19 |
Family
ID=15456929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14862391A Expired - Fee Related JP3316857B2 (en) | 1991-06-20 | 1991-06-20 | Method for producing porous carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3316857B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008030754A1 (en) * | 2008-06-27 | 2009-12-31 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Exhaust gas treatment unit with metal foils of small material thickness |
-
1991
- 1991-06-20 JP JP14862391A patent/JP3316857B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04371237A (en) | 1992-12-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
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| LAPS | Cancellation because of no payment of annual fees |