JP3333288B2 - Metal carrier - Google Patents
Metal carrierInfo
- Publication number
- JP3333288B2 JP3333288B2 JP25614393A JP25614393A JP3333288B2 JP 3333288 B2 JP3333288 B2 JP 3333288B2 JP 25614393 A JP25614393 A JP 25614393A JP 25614393 A JP25614393 A JP 25614393A JP 3333288 B2 JP3333288 B2 JP 3333288B2
- Authority
- JP
- Japan
- Prior art keywords
- foil
- honeycomb body
- outer cylinder
- bonding
- metal
- 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
- 229910052751 metal Inorganic materials 0.000 title claims description 40
- 239000002184 metal Substances 0.000 title claims description 40
- 239000011888 foil Substances 0.000 claims description 55
- 238000009792 diffusion process Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 14
- 238000005304 joining Methods 0.000 claims description 12
- 239000007791 liquid phase Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 229910002065 alloy metal Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 16
- 238000005219 brazing Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910018098 Ni-Si Inorganic materials 0.000 description 1
- 229910018529 Ni—Si Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- -1 plate thickness 2mm Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車のエンジン等の
内燃機関から排出される排ガスを浄化するためのメタル
担体、特に拡散接合等の界面接合によるメタル担体に関
するものである。The present invention relates are those relating <br/> the metal responsible body by interfacial bonding of the metal carrier, such as in particular diffusion bonding for purifying exhaust gas discharged from an internal combustion engine such as automobile engine It is.
【０００２】[0002]
【従来の技術】従来より自動車の排気ガスを浄化するた
めの触媒コンバータにはセラミックス担体が使用されて
いるが、耐熱性、低圧損および搭載性の点より、最近メ
タル担体の使用が増加している。2. Description of the Related Art Conventionally, ceramic carriers have been used in catalytic converters for purifying automobile exhaust gas. However, metal carriers have recently been used in view of heat resistance, low pressure loss and mountability. I have.
【０００３】メタル担体１は図１にその外観を示すが、
厚さ５０μｍ程度のステンレス鋼等の耐蝕、耐熱合金性
の金属箔の平箔２と、平箔をコルゲート加工した波箔３
とを相互に重ねて渦巻状に巻回して、あるいは積層して
ハニカム体４を形成し、ハニカム体４を外筒５に収納し
て形成されている。このメタル担体１は白金、パラジウ
ム、ロジウム等の排ガス浄化用の触媒を担持された後、
例えば自動車エンジンの排ガス系に搭載される。FIG. 1 shows the appearance of the metal carrier 1.
A flat foil 2 of a corrosion-resistant and heat-resistant alloy foil of stainless steel or the like having a thickness of about 50 μm, and a corrugated foil 3 obtained by corrugating a flat foil.
The honeycomb body 4 is formed by spirally winding or laminating them on each other to form the honeycomb body 4, and the honeycomb body 4 is housed in the outer cylinder 5. This metal carrier 1 carries a catalyst for purifying exhaust gas such as platinum, palladium, rhodium, etc.
For example, it is mounted on an exhaust gas system of an automobile engine.
【０００４】このような使用法においては、メタル担体
１は、エンジンからの高温の排ガスによる激しい熱サイ
クル、あるいはエンジンからの激しい振動を受けるが、
もし損傷すると排気管を閉鎖したり、あるいはエンジン
のシリンダー内に破片が入り込み、走行不能あるいはエ
ンジンの破損に陥るため特に耐久性が重要視される。In such a usage, the metal carrier 1 is subjected to a severe heat cycle due to high temperature exhaust gas from the engine or a severe vibration from the engine.
If it is damaged, the exhaust pipe is closed or debris gets into the cylinder of the engine, making it impossible to run or the engine to be damaged.
【０００５】メタル担体１は耐久性を確保するため、従
来からハニカム体４の内部およびハニカム体４と外筒５
との接合は、ロウ付け、電子ビーム、レーザ溶接、抵抗
溶接あるいは拡散接合、液相拡散接合等の界面接合によ
り接合されている。[0005] In order to ensure durability, the metal carrier 1 has conventionally been used for the inside of the honeycomb body 4 and the honeycomb body 4 and the outer cylinder 5.
Is joined by interfacial joining such as brazing, electron beam, laser welding, resistance welding or diffusion joining, liquid phase diffusion joining or the like.
【０００６】拡散接合あるいは液相拡散接合等の界面接
合はロウ材等を特別に用いることなく、高温高真空下あ
るいは非酸化性雰囲気下に保持することにより接合する
方法である。拡散接合等の界面接合を実施する場合は、
接合部にロウ材のような接合材を外部から供給されるこ
とがなく、相互の接触部が接合する方法のため、特に平
箔２と波箔３の接触、換言すると接触面圧を高めること
が特に重要である。もし接触面圧が低いと接合が不完全
になり、使用中に接合部が剥離しハニカム体が損傷して
しまう。[0006] Interface bonding such as diffusion bonding or liquid phase diffusion bonding is a method of bonding by holding under a high temperature and high vacuum or a non-oxidizing atmosphere without special use of a brazing material or the like. When performing interface bonding such as diffusion bonding,
Since the joining portion such as a brazing material is not supplied to the joining portion from the outside and the contact portions are joined to each other, the contact between the flat foil 2 and the corrugated foil 3, in other words, the contact surface pressure is increased. Is particularly important. If the contact surface pressure is low, the bonding becomes incomplete, and the bonded portion peels off during use, and the honeycomb body is damaged.
【０００７】従来の界面接合法における平箔２と波箔３
の接触面圧を高める方法は、メタル担体の形成時に、図
２のように平箔２にバックテンションを矢印Ａの方向に
掛けて、波箔３と共に矢印Ｂの方向に巻取り軸６の周り
に巻回してハニカム体４を硬く巻上げていた。そして外
筒に挿入後、非酸化性雰囲気下で高温熱処理し接合して
いた。なお液相拡散接合の場合は、この段階で高温熱処
理時に、液相を生じるような物質、例えばＮｉ−Ｓｉ系
の箔あるいは粉体を接合部に供給する。[0007] Flat foil 2 and corrugated foil 3 in conventional interface bonding method
The method of increasing the contact surface pressure is to apply a back tension to the flat foil 2 in the direction of arrow A as shown in FIG. And the honeycomb body 4 was wound up hard. Then, after being inserted into the outer cylinder, high-temperature heat treatment was performed in a non-oxidizing atmosphere to join. In the case of liquid-phase diffusion bonding, a substance that generates a liquid phase, for example, a Ni—Si-based foil or powder is supplied to the bonding portion during the high-temperature heat treatment at this stage.
【０００８】しかし以上の対策を講じた場合にも、接合
が不完全になることがある。その理由は、折角ハニカム
体を硬く巻回しても、高温に曝されるため平箔２がクリ
ープで伸びてしまうためである。However, even when the above measures are taken, the joining may be incomplete. The reason is that even if the honeycomb structure is wound hard, the flat foil 2 is expanded by creep because of exposure to high temperatures.
【０００９】この問題を解決する方法として、特開平２
−１４７４７号にハニカム体４を外筒５に挿入した後、
外筒５と共にダイスで縮径し外層側から面圧を高める方
法が示されている。しかし、この方法によっても、同様
に高温で熱処理すると接合が不完全になることがある。
その理由は、外筒５の熱膨張率が、ハニカム体４の熱膨
張率よりも大きい場合、高温で熱処理すると、外筒５の
方が大きくなり、縮径した効果が損なわれるからであ
る。As a method for solving this problem, Japanese Patent Laid-Open No.
After inserting the honeycomb body 4 into the outer cylinder 5 in
A method of reducing the diameter with a die together with the outer cylinder 5 and increasing the surface pressure from the outer layer side is shown. However, also in this method, the bonding may be incomplete if the heat treatment is similarly performed at a high temperature.
The reason is that, when the thermal expansion coefficient of the outer cylinder 5 is larger than the thermal expansion coefficient of the honeycomb body 4, when the heat treatment is performed at a high temperature, the outer cylinder 5 becomes larger and the effect of reducing the diameter is impaired.
【００１０】又、特開平１−１１９３４２号公報には、
耐酸化性の面より外筒５がＡｌの酸化物を主体とする保
護酸化皮膜を形成し、その熱膨張率がハニカム体の熱膨
張率とほぼ等しいか又はそれ以下であるステンレス鋼か
らなることを特徴とする燃焼排ガス触媒担体が示されて
いる。しかし拡散接合のような界面接合においては、そ
の接合部にＡｌを主体とする酸化物があると、これを高
温で熱処理しても接合部に酸化物が残存し良好な接合が
行えない。Japanese Patent Application Laid-Open No. 1-119342 discloses that
The outer tube 5 is formed of a stainless steel having a protective oxide film mainly composed of an oxide of Al and having a coefficient of thermal expansion substantially equal to or less than a coefficient of thermal expansion of the honeycomb body from the viewpoint of oxidation resistance. There is shown a combustion exhaust gas catalyst carrier characterized by the following. However, in the case of interface bonding such as diffusion bonding, if an oxide mainly composed of Al is present at the bonding portion, the oxide remains at the bonding portion even if the oxide is heat-treated at a high temperature, and good bonding cannot be performed.
【００１１】[0011]
【発明が解決しようとする課題】本発明は、平箔にバッ
クテンションを付与しながら、平箔をコルゲート加工し
た波箔と共に中心軸の周りに巻回しハニカム体を形成
し、同ハニカム体を外筒に挿入し、一体的に縮径した
後、真空あるいは非酸化性雰囲気下で界面接合等で接合
するメタル担体において、ハニカム体およびハニカム体
と外筒の接合が不安定になる問題を解決するものであ
る。SUMMARY OF THE INVENTION The present invention provides a honeycomb body formed by winding a flat foil with a corrugated corrugated foil around a central axis while applying a back tension to the flat foil. was inserted into the cylinder, after integrally diameter, Oite the metal responsible body for bonding at the interface bonding and the like, bonding of the honeycomb body and the honeycomb body and the outer cylinder becomes unstable problems under vacuum or non-oxidizing atmosphere Is to solve.
【００１２】[0012]
【課題を解決するための手段】本発明の要旨は １．耐熱合金性の金属箔の平箔と、同箔をコルゲート加
工して形成された波箔を交互に巻回あるいは積層された
ハニカム体と、それを収容する耐熱合金性外筒よりなる
触媒コンバータ用メタル担体において、金属箔をフェラ
イト系耐熱合金製とし、外筒を２％未満のＡｌを含有す
るフェライト系耐熱合金製とし、外筒材の熱膨張率をハ
ニカム体の熱膨張率以下とすることを特徴とするメタル
担体。 The gist of the present invention is as follows. For a catalytic converter consisting of a flat foil of heat-resistant alloy metal foil, a honeycomb body formed by alternately winding or laminating a corrugated foil formed by corrugating the same foil, and a heat-resistant alloy outer cylinder containing the honeycomb body In the metal carrier, the metal foil is made of a heat-resistant ferrite alloy, the outer cylinder is made of a heat-resistant ferrite alloy containing less than 2% of Al, and the thermal expansion coefficient of the outer cylinder material is equal to or less than that of the honeycomb body. metal <br/> responsible body and said.
【００１３】２．ハニカム体の平箔と波箔の接合を拡散
接合、液相拡散接合の内の一種類の接合法で行うことを
特徴とする上記１記載のメタル担体。 ３．ハニカム体と外筒間の接合をロウ付け、拡散接合、
液相拡散接合の内の一種類の接合法で行うことを特徴と
する上記１又は２記載のメタル担体。 ４．ハニカム体を外筒に圧入し位置決めをした後、外筒
と共に縮径することを特徴とする上記の１，２又は３記
載のメタル担体。にある。2. Diffusion bonding the bonding of the flat foil and corrugated foil of the honeycomb body, the metal responsible of the 1, wherein the performing one type of joining method of the liquid phase diffusion bonding. 3. The bonding between the honeycomb body and the outer cylinder is brazed, diffusion bonded,
The 1 or 2 metal responsible body, wherein the performing one type of joining method of the liquid phase diffusion bonding. 4. After the honeycomb body was pressed and positioned in the outer cylinder, the metal responsible of the 1, 2 or 3, wherein said characterized in that the diameter decreases with the outer cylinder. It is in.
【００１４】[0014]
【作用】メタル担体で使用される厚さ５０μｍ程度の金
属箔同士、あるいは外筒とハニカム体を拡散接合あるい
は液相拡散接合のような界面接合、場合によってはロウ
付けの場合においても、高真空高温の接合雰囲気に曝さ
れた場合、接合すべき素材同士は互いに密着していなけ
ればならない。[Function] A high vacuum can be obtained even in the case of interfacial bonding such as diffusion bonding or liquid phase diffusion bonding between metal foils having a thickness of about 50 μm used between metal foils or between an outer cylinder and a honeycomb body, and in some cases, brazing. When exposed to a high-temperature bonding atmosphere, the materials to be bonded must be in close contact with each other.
【００１５】一般に、拡散接合のような界面接合におい
ては、接合すべき材料に加熱接合中も終始面圧が加わる
ように加圧装置あるいはウェイトが使用される。しかし
ながら、メタル担体の場合は、その構造から外部から面
圧を付与することができず、高温高真空で自ら面圧を維
持あるいは高める工夫をする必要がある。そのためには
先ず、外筒の熱膨張率をハニカム体を構成する平箔と波
箔の熱膨張率以下にすることが必要である。In general, in interface bonding such as diffusion bonding, a pressing device or weight is used so that surface pressure is always applied to a material to be bonded even during heat bonding. However, in the case of a metal carrier, surface pressure cannot be applied from the outside due to its structure, and it is necessary to maintain or increase the surface pressure by itself at high temperature and high vacuum. For that purpose, first, it is necessary to make the thermal expansion coefficient of the outer cylinder less than the thermal expansion coefficient of the flat foil and the corrugated foil constituting the honeycomb body.
【００１６】そしてメタル担体製造時は、平箔と波箔を
巻回する場合、平箔にバックテンションを付与し、ハニ
カム体を外筒に圧入あるいはハニカム体を挿入した外筒
を縮径しハニカム体内部が緩まぬようにし、相互に予圧
を掛けた状態にする。At the time of manufacturing the metal carrier, when winding a flat foil and a corrugated foil, a back tension is applied to the flat foil, and the honeycomb body is pressed into the outer cylinder or the outer cylinder in which the honeycomb body is inserted is reduced in diameter to form a honeycomb. Keep the inside of the body loose and preload each other.
【００１７】このメタル担体を例えば１２００℃，１０
-4Torrの高温高真空下においても、外筒が常にハニカム
体を圧縮した状態が維持でき、そのためハニカム体と外
筒間、ハニカム体内部が緩むことなく良好な密着状態が
得られ良好な接合を行うことができる。このことはロウ
付けのように、外部から接合材を供給する場合も有効で
ある。このことは、平箔と波箔および外筒がフェライト
系同士であっても同じである。The metal carrier is heated at, for example, 1200.degree.
Even under high temperature and high vacuum of -4 Torr, the outer cylinder can always maintain the state where the honeycomb body is compressed, so that a good adhesion state can be obtained without loosening between the honeycomb body and the outer cylinder and the inside of the honeycomb body and good joining It can be performed. This is also effective when a bonding material is supplied from outside such as brazing. This is the same even if the flat foil, the corrugated foil, and the outer cylinder are made of ferrite.
【００１８】フェライト系の材料ではＡｌ添加量が増え
るに従って、熱膨張率が大きくなるので、外筒材の場合
はＡｌの添加量を少なくするのが望ましい。又界面接合
の場合、接合面に酸化物が形成されると接合性が悪くな
るので、Ａｌ量は２％未満が好ましい。Since the thermal expansion coefficient of ferrite-based materials increases as the amount of Al added increases, it is desirable to reduce the amount of Al added in the case of an outer cylinder. In the case of interfacial bonding, when an oxide is formed on the bonding surface, the bonding property deteriorates. Therefore, the Al content is preferably less than 2%.
【００１９】[0019]
【実施例】従来のメタル担体と本発明による場合を、外
径１００mm、長さ１００mmのメタル担体で比較した。下
記は従来と本発明によるメタル担体の共通仕様である。 平箔：フェライト系ステンレス箔、厚さ５０μｍ、幅１
００mm 波箔：フェライト系ステンレス箔、厚さ５０μｍ、波高
さ１．２５mm、ピッチ２．５４mm、幅１００mm 外筒：耐熱ステンレス鋼、板厚２mm、製品外径１００m
m、長さ１００mmThe case of EXAMPLES conventional metal responsible body and the present invention, an outer diameter of 100 mm, was compared with metallic support length 100 mm. The following is a common specification of the metal carrier due to the traditional and the onset Akira. Flat foil: Ferritic stainless steel foil, thickness 50 μm, width 1
00mm corrugated foil: ferritic stainless steel foil, thickness 50μm, wave height 1.25mm, pitch 2.54mm, width 100mm outer cylinder: heat-resistant stainless steel, plate thickness 2mm, product outer diameter 100m
m, length 100mm
【００２０】（１）従来法によるメタル担体Ｉ 平箔と波箔：材質２０Ｃｒ−５Ａｌ 熱膨張率１．４９
×１０-5 外筒：材質１８Ｃｒ−８Ｎｉ 熱膨張率１．７５×１０
-5 平箔に１５kgのバックテンションを加えながら、波箔と
共に巻回し、外径９７．５mmのハニカム体を作成した。
そのハニカム体を外径１０２mm、板厚２mmの外筒に挿入
し、縮径機にて外径１００mmに縮径した。その後、１２
５０℃，１０-4torrの高温高真空下で１．５時間加熱保
持しメタル担体Ｉを拡散接合で製作した。(1) Conventional metal carrier I Flat foil and corrugated foil: Material 20Cr-5Al Thermal expansion coefficient 1.49
× 10 -5 outer cylinder: Material 18Cr-8Ni Thermal expansion coefficient 1.75 × 10
-5 flat foil was wound with corrugated foil while applying a back tension of 15 kg to form a honeycomb body having an outer diameter of 97.5 mm.
The honeycomb body was inserted into an outer cylinder having an outer diameter of 102 mm and a plate thickness of 2 mm, and was reduced to an outer diameter of 100 mm by a diameter reducing machine. Then, 12
The metal carrier I was manufactured by diffusion bonding at 50 ° C. under a high temperature of 10 −4 torr under a high vacuum for 1.5 hours.
【００２１】（２）従来法によるメタル担体II 平箔と波箔：材質１６．３Ｃｒ−５Ａｌ 熱膨張率１．
１９×１０-5 外筒：材質１５Ｃｒ−４．５Ａｌ 熱膨張率１．３０×
１０-5 担体Ａと同じ方法、条件で担体IIを拡散接合で製作し
た。(2) Conventional metal carrier II Flat foil and corrugated foil: Material 16.3Cr-5Al Thermal expansion coefficient 1.
19 × 10 -5 outer cylinder: Material 15Cr-4.5Al Thermal expansion coefficient 1.30 ×
The carrier II was manufactured by diffusion bonding under the same method and conditions as for the 10-5 carrier A.
【００２２】（３）本発明によるメタル担体III 平箔と波箔：材質２０Ｃｒ−５Ａｌ 熱膨張率１．４９
×１０-5 外筒：材質１９Ｃｒ−０．４Ｎｂ 熱膨張率１．１９×
１０-5 担体Ａと同じ方法、条件で担体III を拡散接合で製作し
た。[0022] (3) metal carrier III flat foil according to the present onset Ming and corrugated foil: Material 20Cr-5 Al thermal expansion coefficient 1.49
× 10 -5 outer cylinder: Material 19Cr-0.4Nb Thermal expansion coefficient 1.19 ×
Carrier III was produced by diffusion bonding under the same method and conditions as for 10 -5 carrier A.
【００２３】（４）本発明によるメタル担体IV 平箔：材質２０Ｃｒ−５Ａｌ 熱膨張率１．４９×１０
-5 波箔：材質２０Ｃｒ−４．５Ａｌ 熱膨張率１．４５×
１０-5 外筒：材質１９Ｃｒ−０．４Ｎｂ 熱膨張率１．１９×
１０-5 担体Ａと同じ方法、条件で担体IVを拡散接合で製作し
た。[0023] (4) The onset by bright metal carrier IV flat sheet: Material 20Cr-5 Al Thermal expansion coefficient 1.49 × 10
-5 corrugated foil: Material 20Cr-4.5Al Thermal expansion coefficient 1.45x
10-5 outer cylinder: Material 19Cr-0.4Nb Thermal expansion coefficient 1.19 ×
The carrier IV was produced by diffusion bonding under the same method and conditions as for the 10-5 carrier A.
【００２４】上記メタル担体Ｉ，II，III,IVを樹脂に埋
込み研磨後、外周から２０層分の接合率を調査した。そ
の結果、表１のように本発明によると接合が安定に行
え、良好な拡散接合メタル担体が得られた。本発明をロ
ウ付けあるいは、低融点箔による液相拡散接合あるいは
波箔の先端に接合促進剤を塗布する液相接合にも適用し
たが同様に良好であった。After embedding the metal carriers I, II, III, and IV in a resin and polishing them, the bonding ratio of 20 layers from the outer periphery was examined. As a result, bonded According to this onset bright as shown in Table 1 is performed in a stable, good diffusion bonding metal carrier was obtained. This onset bright b <br/> c with or is applied to a liquid phase bonding of coating the adhesion promoting agent to the tip of the liquid phase diffusion bonding or the corrugated sheet by the low-melting foil was as good.
【００２５】本発明による拡散接合メタル担体III およ
びIVを、排気量２０００ccのガソリンエンジンの排気系
に搭載し、１サイクル 加熱９００℃×１０分＋冷却１
５０℃×１０分の耐久試験を５００サイクル行ったが、
損傷もなく合格できた。[0025] The diffusion bonding metal carrier III and IV in accordance with the present onset bright, emissions mounted in an exhaust system of a gasoline engine of 2000cc, 1 cycle heating 900 ° C. × 10 minutes + cooling 1
A durability test was performed at 50 ° C. × 10 minutes for 500 cycles.
Passed without damage.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】以上のように本発明によると、メタル担
体のハニカム体内部の平箔と波箔および外筒とハニカム
体間の界面接合を良好に行え耐久性のあるメタル担体を
製作できる。As described above, according to the present invention, it is possible to produce a durable metal carrier which can perform good interface bonding between the flat foil and corrugated foil inside the honeycomb body of the metal carrier and the outer cylinder and the honeycomb body.
【図面の簡単な説明】[Brief description of the drawings]
【図１】メタル担体の外観の構成図。FIG. 1 is a configuration diagram of the appearance of a metal carrier.
【図２】ハニカム体巻取り状態を示す構成図。FIG. 2 is a configuration diagram showing a honeycomb body winding state.
１ メタル担体 ２ 平箔 ３ 波箔 ４ ハニカム体 ５ 外筒 ６ 巻取り軸 Ａ バックテンションの方向を示す矢印 Ｂ ハニカム体巻取り方向を示す矢印 DESCRIPTION OF SYMBOLS 1 Metal carrier 2 Flat foil 3 Corrugated foil 4 Honeycomb body 5 Outer cylinder 6 Winding axis A Arrow indicating back tension direction B Arrow indicating honeycomb body winding direction
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ０１Ｎ 3/28 ３１１ Ｆ０１Ｎ 3/28 ＺＡＢ ＺＡＢ Ｂ０１Ｄ 53/36 ＺＡＢＣ (58)調査した分野(Int.Cl.7，ＤＢ名) B21D 47/00 B01J 35/04 321 F01N 3/28 301 F01N 3/28 311 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI F01N 3/28 311 F01N 3/28 ZAB ZAB B01D 53/36 ZABC (58) Investigated field (Int.Cl. 7 , DB name) B21D 47/00 B01J 35/04 321 F01N 3/28 301 F01N 3/28 311
Claims (4)
ルゲート加工して形成された波箔を交互に巻回あるいは
積層されたハニカム体と、それを収容する耐熱合金性外
筒よりなる触媒コンバータ用メタル担体の製造法におい
て、金属箔をフェライト系耐熱合金製とし、外筒を２％
未満のＡｌを含有するフェライト系耐熱合金製とし、外
筒材の熱膨張率をハニカム体の熱膨張率以下とすること
を特徴とするメタル担体。 1. A honeycomb body obtained by alternately winding or laminating a flat foil of a heat-resistant alloy metal foil, a corrugated foil formed by corrugating the foil, and a heat-resistant alloy outer cylinder for housing the honeycomb body In the method for producing a metal carrier for a catalytic converter, the metal foil is made of a heat-resistant ferritic alloy and the outer cylinder is made of 2%
Ferritic is made of heat resistant alloy, metal responsible body a coefficient of thermal expansion of the outer tubular member, characterized in that less thermal expansion of the honeycomb body containing less than Al.
合、液相拡散接合の内の一種類の接合法で行うことを特
徴とする請求項１記載のメタル担体。 2. A diffusion bonding the bonding of the flat foil and corrugated foil of the honeycomb body, the liquid phase diffusion single type metal responsible body according to claim 1, characterized in that the joining method of the junction.
拡散接合、液相拡散接合の内の一種類の接合法で行うこ
とを特徴とする請求項１又は２記載のメタル担体。 3. The joining between the honeycomb body and the outer cylinder is brazed,
Diffusion bonding, according to claim 1 or 2 metal responsible body, wherein the performing one type of joining method of the liquid phase diffusion bonding.
た後、外筒と共に縮径することを特徴とする請求項１，
２又は３記載のメタル担体。 4. The method according to claim 1, wherein after the honeycomb body is press-fitted into the outer cylinder and positioned, the diameter is reduced together with the outer cylinder.
2 or 3 metal responsible body according.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25614393A JP3333288B2 (en) | 1993-10-13 | 1993-10-13 | Metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25614393A JP3333288B2 (en) | 1993-10-13 | 1993-10-13 | Metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07108334A JPH07108334A (en) | 1995-04-25 |
| JP3333288B2 true JP3333288B2 (en) | 2002-10-15 |
Family
ID=17288503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25614393A Expired - Fee Related JP3333288B2 (en) | 1993-10-13 | 1993-10-13 | Metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3333288B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3816974B2 (en) * | 1995-10-04 | 2006-08-30 | 新日本製鐵株式会社 | Diffusion bonded metal carrier for catalyst having strong bonding strength and method for producing the same |
| JP3788819B2 (en) * | 1996-02-13 | 2006-06-21 | 新日本製鐵株式会社 | Metal carrier for exhaust gas purification catalyst |
| JP4179986B2 (en) * | 2003-12-26 | 2008-11-12 | サクラ工業株式会社 | CORE PIECE OF EXHAUST CATALYST DEVICE, ITS MANUFACTURING METHOD, AND INSERTION AND FIXING METHOD THEREOF |
| WO2005063394A1 (en) * | 2003-12-26 | 2005-07-14 | Sakura Kogyo Co., Ltd. | Core piece for exhaust gas catalyst device, method of producing the same, and method of installing and fixing the same |
| JP6813467B2 (en) * | 2017-11-13 | 2021-01-13 | 本田技研工業株式会社 | Catalytic converter |
-
1993
- 1993-10-13 JP JP25614393A patent/JP3333288B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07108334A (en) | 1995-04-25 |
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