JP2640989B2 - Metal carrier for supporting catalyst and method for producing the same - Google Patents

Metal carrier for supporting catalyst and method for producing the same

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Publication number
JP2640989B2
JP2640989B2 JP50346893A JP50346893A JP2640989B2 JP 2640989 B2 JP2640989 B2 JP 2640989B2 JP 50346893 A JP50346893 A JP 50346893A JP 50346893 A JP50346893 A JP 50346893A JP 2640989 B2 JP2640989 B2 JP 2640989B2
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JP
Japan
Prior art keywords
brazing
metal carrier
supporting
flat plate
welding
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
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JP50346893A
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Japanese (ja)
Inventor
義一 小柴
幸夫 青木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON YAKIN KOGYO KK
Original Assignee
NIPPON YAKIN KOGYO KK
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Priority to JP50346893A priority Critical patent/JP2640989B2/en
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Publication of JP2640989B2 publication Critical patent/JP2640989B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】 技術分野 本発明は自動車、オートバイ等の内燃機関における排
ガス浄化用触媒物質を担持するメタル担体の製造方法に
関し、特に激しい熱サイクル、ガス圧力を負荷した場合
でも、テレスコープを発生しない強固に接合されたメタ
ル単体及びその製造に関する。
Description: TECHNICAL FIELD The present invention relates to a method for producing a metal carrier carrying a catalyst material for purifying exhaust gas in an internal combustion engine of an automobile, a motorcycle, etc., and particularly to a telescope even under a severe heat cycle and gas pressure. The present invention relates to a strongly bonded metal unit that does not generate cracks and its manufacture.

背景技術 従来、排ガス浄化用触媒を担持するメタル担体は、通
常メタルハニカム構造体と称されるもので、平板状鋼板
と波形状鋼板とを重ね合せ、これを円筒状に捲回して平
板状鋼板と波形状鋼板とが交互に層状に配置した形状の
もので、各層をスポット溶接もしくはろう付して一体と
している。
BACKGROUND ART Conventionally, a metal carrier that carries an exhaust gas purifying catalyst is usually called a metal honeycomb structure, and a flat steel sheet and a corrugated steel sheet are overlapped, and the flat steel sheet and a corrugated steel sheet are wound into a cylindrical shape to form a flat steel sheet. And corrugated steel sheets are alternately arranged in layers, and each layer is integrated by spot welding or brazing.

例えば特開昭54−13462号公報には平板状鋼板と波形
状鋼板とを相互に電子ビーム溶接、又は、レーザビーム
溶接等によるスポット溶接によって一体化する方法が記
載されている。しかし、スポット溶接の場合には、ハニ
カム構造体の軸方向の全ての個所について溶接すること
はできず、ハニカム構造体の端面近傍の限られた個所し
か溶接できない。
For example, Japanese Patent Application Laid-Open No. 54-13462 discloses a method in which a flat steel sheet and a corrugated steel sheet are mutually integrated by spot welding such as electron beam welding or laser beam welding. However, in the case of spot welding, welding cannot be performed at all locations in the axial direction of the honeycomb structure, and only a limited location near the end face of the honeycomb structure can be welded.

また、特公昭63−44466号にはろう付によってハニカ
ム構造体を形成する方法が開示されている。ろう付手段
としては、平板状鋼板と波形状鋼板とを重ねて巻回する
前に両鋼板間にろう材を介在させる方法、或は巻回後に
ろう材を塗布、融着させる方法、或はろう材として液状
バインダーを混合した溶液中に浸漬する方法等がある。
しかし、ハニカム構造体の鋼板には触媒を担持させるた
め、この場合も、スポット溶接の場合と同様に、ハニカ
ム構造体の端面に限られた個所にろう付けすることが一
般的である。
Japanese Patent Publication No. 63-44466 discloses a method of forming a honeycomb structure by brazing. As the brazing means, a method in which a brazing material is interposed between the flat steel plate and the corrugated steel plate before rolling and overlapping, or a method in which the brazing material is applied and fused after winding, or As a brazing material, there is a method of immersing in a solution in which a liquid binder is mixed.
However, in order to carry a catalyst on the steel plate of the honeycomb structure, it is common to braze only a limited portion of the end face of the honeycomb structure in this case as in the case of spot welding.

このように、スポット溶接、或いはろう付の何れの場
合もハニカム構造体の端面した接合できないので接合強
度も必ずしも満足するような値ではなかった。
As described above, in any of the spot welding and the brazing, the end face of the honeycomb structure cannot be joined, so that the joining strength was not always a value satisfying.

すなわち、本発明者は、外径200mmφ、長さ150mmのハ
ニカム構造体の端面のスポット溶接を施したもの、ろう
付を施したものを押し抜きテストし、その強度を測定し
た。スポット溶接は、メタル担体の両端より各々5mmの
部分を溶接したもの、また、ろう付は、両端より20mmの
部分を浸漬によってろう付し、その後、加熱によってろ
う付したものについて測定した。その結果、各々の強度
はスポット溶接で500kg程度、ろう付で1.5ton程度であ
った。なお、メタルハニカムの破断強度(接合強度)の
測定方法は、後述するように、直径105mmの孔の中に押
込んだときの強度である。
That is, the present inventor performed a punching test on a honeycomb structure having an outer diameter of 200 mmφ and a length of 150 mm on which an end face was spot-welded and brazed, and measured the strength. Spot welding was performed on a metal carrier obtained by welding a portion 5 mm from both ends of the metal carrier, and brazing was performed on a portion 20 mm from both ends by brazing by immersion and then brazing by heating. As a result, each strength was about 500 kg by spot welding and about 1.5 ton by brazing. The method of measuring the breaking strength (joining strength) of the metal honeycomb is the strength when the honeycomb is pressed into a hole having a diameter of 105 mm, as described later.

そして、その破断状況を観察するとスポット溶接の場
合は、接合面積が少ないためにその溶接部分に応力集中
が生じること、ろう付の場合は、ろう付のための最適ク
リアランスの範囲が狭く場所によってはろう付が有効な
接合力として作用しないことが原因と推定された。特
に、ろう付においては、本来接合させようとした部分の
うちの80%程度しか接触せず、残り20%は空隙が生じて
いた。その原因として従来の波板の頂部が必ずしも平で
ないため平板との接触が十分ではなく、また、ろう付に
際して約1200℃という高温に加熱するため常温では接触
していた平板と波板の接触部長に熱膨張による隙間が生
じ完全にろう付けできないことによるものと考えられ
る。
When observing the fracture situation, in the case of spot welding, stress concentration occurs in the welded part due to the small joining area, and in the case of brazing, the optimum clearance range for brazing is narrow and depending on the place It was presumed that brazing did not act as an effective joining force. In particular, in brazing, only about 80% of the parts originally intended to be joined were in contact, and the remaining 20% had voids. The cause is that the contact with the flat plate is not sufficient because the top of the conventional corrugated plate is not always flat, and the contact length between the flat plate and the corrugated plate that was in contact at room temperature because it was heated to a high temperature of about 1200 ° C during brazing. It is considered that a gap is formed due to thermal expansion and brazing cannot be performed completely.

しかし、近年メタル担体の接合強度の要求が高くな
り、溶接、ろう付のみでは十分な強度を得ることが困難
になってきた。特に、触媒効果を良くするため、コンバ
ーターをエンジン近傍へ配置するようになってきたた
め、排ガス温度が高温になったこと、エンジンの振動の
影響を受けるようになったことから接合部分が破断し、
テレスコープと呼ばれる現象が生じ問題となっていた。
However, in recent years, the demand for joining strength of metal carriers has increased, and it has become difficult to obtain sufficient strength only by welding and brazing. Especially, in order to improve the catalytic effect, the converter has been arranged near the engine, so that the exhaust gas temperature has become high and the joint part has been broken due to the influence of the engine vibration,
A phenomenon called a telescope has occurred and has become a problem.

本発明者は、このような厳しい条件でもテレスコープ
を生じないような強固な接合方法について、種々検討し
た結果、本発明を完成したもので、本発明の目液は激し
い熱サイクル、ガス圧力を負荷した場合でも、テレスコ
ープを発生しない強固に接合されたメタル担体及びその
製造方法を提供しようとするものである。
The inventor of the present invention has completed the present invention as a result of various studies on a strong joining method that does not cause telescope even under such severe conditions, and the eye drops of the present invention require a severe heat cycle and gas pressure. An object of the present invention is to provide a strongly bonded metal carrier that does not generate a telescope even when loaded, and a method for manufacturing the same.

発明の開示 すなわち、本発明の要旨は、排ガス浄化用触媒物質を
担持するメタル担体において、体高温酸化性を有する断
面形状が台形の波板と、平板が、溶接及びその溶接部近
傍のろう付部によって接合されたことを特徴とする触媒
担持用メタル担体である。
DISCLOSURE OF THE INVENTION That is, the gist of the present invention is that a metal support supporting an exhaust gas purifying catalyst substance has a corrugated plate having a trapezoidal cross-sectional shape having high body temperature oxidizing property, and a flat plate formed by welding and brazing near the welded portion. A metal carrier for supporting a catalyst, wherein the metal carrier is joined by a portion.

図面の簡単な説明 図1は、本発明にかかる触媒担持用メタル担体の側面
図、図2は本発明にかかる触媒担持用メタル担体の軸方
向(図1のAA切断線)の切断面の接合部分の拡大図、ま
た、図3は本発明にかかる触媒担持用メタル担体の半径
方向(図1のBB切断線)の切断面の接合部分の拡大図、
図4は押込みテスト試験装置である。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a metal carrier for supporting a catalyst according to the present invention, and FIG. 2 is a joining of a cut surface of the metal carrier for supporting a catalyst according to the present invention in the axial direction (AA cutting line in FIG. 1). FIG. 3 is an enlarged view of a joining portion of a cut surface in a radial direction (a BB cutting line in FIG. 1) of the metal carrier for supporting catalyst according to the present invention;
FIG. 4 shows an indentation test test apparatus.

本発明について、詳細に説明する。 The present invention will be described in detail.

本発明においては、波板頂部の溶接部の近傍にろう付
け部が存在することによって最適なクリアランスのもと
で接合面積を増加することが可能となり、また従来溶接
部に生じていた応力集中を緩和し、その結果、従来より
もはるかに高い接合強度が得られる。
In the present invention, the presence of the brazing portion in the vicinity of the welded portion at the top of the corrugated sheet makes it possible to increase the joint area under optimum clearance, and to reduce the stress concentration that has conventionally occurred in the welded portion. Relaxation results in much higher bonding strength than before.

更に、本発明においては、波板として断面が台形を有
する波板を使用し、平板との接触面積を大とし、該波板
と平板とを層状に交互に配置し、それら平板、波板を巻
回しながら溶接により固定し、これによって平板と波板
の接触が確保できるのでろう付のための最適クリアラン
スが確保できる。また、溶接後、ろう付を施すことによ
って従来の溶接部に生じていた応力集中を防止すること
ができる。したがって、平板と波板とが強固に接合する
ことが出来る。
Further, in the present invention, a corrugated sheet having a trapezoidal cross section is used as the corrugated sheet, the contact area with the flat plate is increased, the corrugated sheet and the flat plate are alternately arranged in layers, and the flat plate and the corrugated sheet are used. It is fixed by welding while being wound, so that the contact between the flat plate and the corrugated plate can be secured, so that the optimum clearance for brazing can be secured. Further, by performing brazing after welding, it is possible to prevent stress concentration occurring in a conventional welded portion. Therefore, the flat plate and the corrugated plate can be firmly joined.

本発明において、また、溶接部にろう材を供給する方
法を提案する。ろう材はいわゆるディスペンサー方式に
よって、波板頂部のみに供給され、ろう付の不要な部分
には供給されない。ろう付部と溶接部の間の距離は、加
熱によってろう材が溶接部まで広がる距離であれば良い
が、10mm以内、好ましくは5mm以内が良い。ここで、デ
ィスペンサー方式とは、エアシリンダーを用いてろう材
を適量送りこむ方式をいうのである。
In the present invention, a method for supplying a brazing filler metal to a weld is also proposed. The brazing material is supplied only to the corrugated sheet top by a so-called dispenser method, and is not supplied to portions where brazing is unnecessary. The distance between the brazed portion and the welded portion may be any distance as long as the brazing material spreads to the welded portion by heating, but is preferably within 10 mm, and preferably within 5 mm. Here, the dispenser method refers to a method of feeding an appropriate amount of brazing material using an air cylinder.

本発明はマスキングされた平板、波板を使用すること
ができ、マスキングされた平板、波板を溶接すると、溶
接熱によって、溶接部及びその近傍のマスキング材は飛
散、蒸発し、溶接することが可能となり、その後ろう材
を供給して、溶接部近傍にろう材を配置することができ
る。マスキングされた部分のろう材は平板、波板との間
の弱い結合力しか働かないため、簡単に除去できる。
The present invention can use a masked flat plate and a corrugated plate. When the masked flat plate and the corrugated plate are welded, the welding heat and the masking material in the vicinity thereof are scattered, evaporated, and welded by welding heat. After that, the brazing material can be supplied and the brazing material can be arranged near the weld. The masked portion of the brazing material can be easily removed because only a weak bonding force acts between the flat plate and the corrugated plate.

マスキング材は、溶接熱で飛散、蒸発するものであれ
ば特に限定されるものではなく、例えばエチレングリコ
ールのような蒸発しにくい有機溶剤、あるいは油脂が適
当である。樹脂の場合、圧延時の残存する油脂の量でも
十分その効果を発揮する。
The masking material is not particularly limited as long as it is scattered and evaporated by welding heat. For example, an organic solvent, such as ethylene glycol, which hardly evaporates, or a fat or oil is suitable. In the case of a resin, the effect is sufficiently exhibited even with the amount of the fat or oil remaining during rolling.

このようにして、必要最小限のろう材しか用いないた
め、メタル担体上に最大量の触媒を担持することができ
る。これは、ろう材の部分に触媒が担持されにくいこと
による。
In this way, since only the minimum necessary brazing material is used, the maximum amount of catalyst can be supported on the metal carrier. This is because the catalyst is not easily carried on the brazing material.

本発明において使用する平板及び波板の鋼板は、この
種の触媒担持用の鋼板であれば何れでもよく、その厚み
は、50μmである。本発明においては、波板として頂部
が平坦な形状を有するものを使用し、好ましくは頂部の
長さより波の高さの寸法の方が大な形状を有する。この
ような形状を有することによって、溶接時平板との接触
が確実により、より確実な溶接が可能となり、しかも、
頂部の長さより波の高さの寸法を大とすることにより波
板の剛性が高くなるので好ましい。
The flat and corrugated steel sheets used in the present invention may be any steel sheet for supporting a catalyst of this type, and the thickness thereof is 50 μm. In the present invention, a corrugated sheet having a flat top is used, and preferably, the height of the wave is larger than the length of the top. By having such a shape, the contact with the flat plate at the time of welding is ensured, and more reliable welding can be performed.
It is preferable that the size of the wave height be larger than the length of the top portion, because the rigidity of the corrugated plate is increased.

次に、溶接について詳述する。溶接手段としてはスポ
ット溶接でよく、溶接部分としては両端より20mm以内が
好ましい。ろう付を施す関係であまり中央に近いと、ろ
う付も中央部となり、中央部にろう付を施すことは困難
となるのみならず、ろう付部分は触媒との密着性が低下
し、触媒能力が低下するためろう付部分の面積は最低限
とすることが望ましい。そのため、溶接部分を両端より
20mm以内としてろう付部分も両端より20mm程度とするこ
とが好ましい。また、両端の溶接線は各々2列以上、そ
の間隙は5mm以内とするとろう付のためのクリアランス
確保のためには最適となる。本発明者の実験によれば溶
接部の間隙を5mm以内とすることで、この間隙部にもろ
う材が十分入り込み、ろう付強度を高めることが可能と
なる。
Next, the welding will be described in detail. The welding means may be spot welding, and the welding portion is preferably within 20 mm from both ends. If the brazing is too close to the center, the brazing will be in the center and not only will it be difficult to braze the center, but also the braze will have reduced adhesion to the catalyst, and Therefore, it is desirable that the area of the brazing portion be minimized. Therefore, the welded part must be
It is preferable that the brazed portion is set to be within 20 mm and the brazed portion is also set to be about 20 mm from both ends. If the welding lines at both ends are two rows or more and the gap is 5 mm or less, it is optimal for securing clearance for brazing. According to the experiment of the present inventor, by setting the gap of the welded portion to 5 mm or less, the brazing material can sufficiently enter this gap and the brazing strength can be increased.

本発明では、まず溶接を行い、波板と平板とを固定し
た後、ろう付を行うこが好ましい。ろう付け手段として
は、ろう材と液状バインダーを混合した溶液中に浸漬す
る方法が簡単なため好ましい。
In the present invention, it is preferable to first perform welding, fix the corrugated sheet and the flat plate, and then perform brazing. As a brazing means, a method of dipping in a solution in which a brazing material and a liquid binder are mixed is preferable because it is simple.

ろう材供給後に十分な接合強度を付与するためには、
熱処理によってろう材を溶融させる必要があるが、これ
は例えば真空中(1×10-3Torr)、1200℃、20分の処理
によって行うことができる。
In order to provide sufficient bonding strength after brazing material is supplied,
It is necessary to melt the brazing material by heat treatment, which can be performed by, for example, a treatment in vacuum (1 × 10 −3 Torr) at 1200 ° C. for 20 minutes.

このようにして得られた本発明にかかる触媒担持用メ
タル担体を図1〜3に示する。
The thus obtained metal carrier for supporting a catalyst according to the present invention is shown in FIGS.

図面において、頂部が平坦な波板1と平板2とを巻回
しながら溶接点3で溶接し、挙板の頂部と平板を接合
し、両者の間にクリアランスをもうけ、ろう材4をもっ
てろう付けして一体とする。
In the drawing, a corrugated sheet 1 and a flat plate 2 having flat tops are wound and welded at a welding point 3 to join the tops of the raised plate and the flat plate, a clearance is provided therebetween, and a brazing material 4 is brazed. And unite.

発明を実施するための最良の形態 次に実施例をもって、本発明を更に具体的に説明す
る。
BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described more specifically with reference to examples.

なお、実施例における押込みテストとは、図4に示す
装置を用いて測定した。すなわち、中央に直径105mmの
孔を有する試験台5の上にハニカム状メタル担体である
サンプル6を載せ、その上部より直径100mmのポンチ7
を押し込み平板と波板とを接合が破断したときの強度を
もって破断強度とした。
The indentation test in the examples was measured using the apparatus shown in FIG. That is, a sample 6 which is a honeycomb-shaped metal carrier is placed on a test table 5 having a hole having a diameter of 105 mm in the center, and a punch 7 having a diameter of 100 mm is placed from above the sample.
And the strength at which the joint between the flat plate and the corrugated plate was broken was taken as the breaking strength.

実施例1 20Cr−5Alフェライト系ステンレス鋼箔50μm厚を用
いて平板、波板を巻回すると同時に両端より5mm、8mmの
部分を2ケ所、スポット溶接した。その後端部より10mm
までをろう材に浸漬してろう付し、メタル担体を製造し
た。波板としては下辺が1.5mm、波の高さ2.2mmのものを
使用し、担体の外径は200mmφ、長さ150mmであった。ろ
う付後1200℃真空で20分加熱した。
Example 1 A flat plate and a corrugated plate were wound using a 50-μm thick 20Cr-5Al ferritic stainless steel foil, and two portions of 5 mm and 8 mm from both ends were spot-welded at the same time. 10 mm from the end
Immersed in a brazing material and brazed to produce a metal carrier. A corrugated plate having a lower side of 1.5 mm and a wave height of 2.2 mm was used, and the outer diameter of the carrier was 200 mmφ and the length was 150 mm. After brazing, it was heated at 1200 ° C. for 20 minutes under vacuum.

得られたメタル担体について押込みテストを実施した
結果、そのときの破談強度は、5.6tonであった。
As a result of performing an indentation test on the obtained metal carrier, the breaking strength at that time was 5.6 ton.

比較のため、同じ平板及び波板を用い、同じ個所を同
様にスポット溶接のみの場合でも500kg、また、ろう付
のみの場合では2.8tonの破断強度を示したに過ぎなかっ
た。
For comparison, when the same flat plate and corrugated plate were used and the same spot was similarly spot-welded only, the breaking strength was 500 kg, and the brazing-only only showed a breaking strength of 2.8 ton.

実施例2 実施例1と同様の鋼箔を使用し、実施例1と同様な方
法でスポット溶接及びろう付してメタル担体を製造し
た。但し、波板としては下辺が1.5mm、波の高さが2.2mm
のものを使用し、メタル担体の形状は、その直径が150m
mで長さが150mmであった。製造方法はディスペンサー方
式によって、波板の両端部より8mmの部分にろう材を供
給し、次いでろう付部より9mmの部分をスポット溶接し
た。
Example 2 A metal carrier was produced by using the same steel foil as in Example 1 and performing spot welding and brazing in the same manner as in Example 1. However, as a corrugated sheet, the lower side is 1.5 mm and the wave height is 2.2 mm
The shape of the metal carrier is 150m in diameter.
m and a length of 150 mm. The brazing material was supplied to a portion 8 mm from both ends of the corrugated sheet by a dispenser method, and then a portion 9 mm from the brazed portion was spot-welded.

得られたメタル担体について押込みテストを実施した
結果、そのときの破断強度は、6.5tonであった。
As a result of performing an indentation test on the obtained metal carrier, the breaking strength at that time was 6.5 ton.

実施例3 実施例1と同様の鋼箔を使用し、実施例1と同様な方
法でスポット溶接及びろう付してメタル担体を製造し
た。但し、波板としては下辺が1.5mm、波の高さが2.2mm
のものを使用し、メタル担体の形状は、その直径が150m
mで長さが150mmであった。表面にごく薄い油が存在する
平板、波板の両端から5mm、8mmの部分を2ケ所スポット
溶接を施した後、ろう材と液状バインダーを混合した溶
液中に端面から10mmまでを浸漬した。しかる後、空気を
吹きつけることによって溶接部近傍以外のろう材を除去
し、1200℃真空中20分加熱した。
Example 3 A metal carrier was manufactured by using the same steel foil as in Example 1 and performing spot welding and brazing in the same manner as in Example 1. However, as a corrugated sheet, the lower side is 1.5 mm and the wave height is 2.2 mm
The shape of the metal carrier is 150m in diameter.
m and a length of 150 mm. After spot-welding two portions of 5 mm and 8 mm from both ends of a flat plate and a corrugated plate having very thin oil on the surface, 10 mm from the end surface was immersed in a solution in which a brazing filler metal and a liquid binder were mixed. Thereafter, the brazing material other than the vicinity of the welded portion was removed by blowing air, and heated at 1200 ° C. in a vacuum for 20 minutes.

得られたメタル担体について押込みテストを実施した
結果、そのときの破談強度は5.5tonであった。
As a result of performing an indentation test on the obtained metal carrier, the breaking strength at that time was 5.5 ton.

産業上の利用可能性 以上述べたように、本発明は、メタル担体に関し、従
来のスポット溶接の場合の11倍、ろう付の場合の2倍と
いう極めて大なる接合強度(破断強度)を有し、厳しい
条件下においてもテレスコープ等の問題なく使用できる
触媒担持用メタル担体を供給することが可能となった。
INDUSTRIAL APPLICABILITY As described above, the present invention relates to a metal carrier and has an extremely large joining strength (rupture strength) of 11 times that of conventional spot welding and twice that of brazing. Thus, it has become possible to supply a metal carrier for supporting a catalyst which can be used under severe conditions without problems such as a telescope.

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】排ガス浄化用触媒物質を担持するメタル担
体において、耐高温酸化性を有する断面形状が台形の波
板と、平板が、溶接及びその溶接部近傍のろう付部によ
って接合されたことを特徴とする触媒担持用メタル担
体。
1. A metal support supporting an exhaust gas purifying catalyst substance, wherein a corrugated plate having a trapezoidal cross section having high temperature oxidation resistance and a flat plate are joined by welding and a brazing portion near the welded portion. A metal carrier for supporting a catalyst, characterized in that:
【請求項2】排ガス浄化用触媒物質を担持するメタル担
体の製造方法において、耐高温酸化性を有する断面形状
が台形の波板と平板とを層状に交互に配置し、それら波
板、平板を溶接により固定し、次いでその固定部分にろ
う材を供給してろう付することを特徴とする触媒担持用
メタル担体の製造方法。
2. A method for producing a metal carrier supporting an exhaust gas purifying catalytic substance, wherein a corrugated plate and a flat plate having a trapezoidal cross section having high temperature oxidation resistance are alternately arranged in layers, and the corrugated plate and the flat plate are formed. A method for producing a metal carrier for supporting a catalyst, comprising fixing by welding, and then brazing by supplying a brazing material to the fixed portion.
【請求項3】排ガス浄化用触媒物質を担持するメタル担
体の製造方法において、耐高温酸化性を有する断面形状
が台形の波板と平板を層状に交互に配置する際にろう材
を供給し、次いでそれら波板、平板をろう付部近傍で溶
接を行うことを特徴とする触媒担持用メタル担体の製造
方法。
3. A method for producing a metal carrier supporting an exhaust gas purifying catalyst material, comprising: supplying a brazing material when a corrugated plate and a flat plate having a trapezoidal cross section having high temperature oxidation resistance are alternately arranged in layers. Then, the corrugated plate and the flat plate are welded in the vicinity of the brazing portion, and a method for producing a metal carrier for supporting a catalyst is provided.
【請求項4】排ガス浄化用触媒物質を担持するメタル担
体の製造方法において、耐高温酸化性を有する断面形状
が台形の波板と平板の片方又は両方の表面をマスキング
して層状に交互に配置し、それら波板、平板を溶接によ
り固定し、次いでその溶接部分の近傍にろう材を供給
し、その後余分なろう材を除去してろう付けすることを
特徴とする触媒担持用メタル担体の製造方法。
4. A method for producing a metal carrier supporting an exhaust gas purifying catalyst material, wherein one or both surfaces of a corrugated plate and a plate having a trapezoidal cross section having high temperature oxidation resistance are masked and arranged alternately in layers. Manufacturing a metal carrier for supporting a catalyst, wherein the corrugated sheet and the flat plate are fixed by welding, and then a brazing material is supplied in the vicinity of the welded portion, and then the excess brazing material is removed and brazed. Method.
JP50346893A 1991-08-01 1992-07-31 Metal carrier for supporting catalyst and method for producing the same Expired - Fee Related JP2640989B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50346893A JP2640989B2 (en) 1991-08-01 1992-07-31 Metal carrier for supporting catalyst and method for producing the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21415191 1991-08-01
JP3-214151 1991-08-01
JP50346893A JP2640989B2 (en) 1991-08-01 1992-07-31 Metal carrier for supporting catalyst and method for producing the same

Publications (1)

Publication Number Publication Date
JP2640989B2 true JP2640989B2 (en) 1997-08-13

Family

ID=26520171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50346893A Expired - Fee Related JP2640989B2 (en) 1991-08-01 1992-07-31 Metal carrier for supporting catalyst and method for producing the same

Country Status (1)

Country Link
JP (1) JP2640989B2 (en)

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