JPH06304484A - Manufacture of metallic carrier - Google Patents
Manufacture of metallic carrierInfo
- Publication number
- JPH06304484A JPH06304484A JP5099851A JP9985193A JPH06304484A JP H06304484 A JPH06304484 A JP H06304484A JP 5099851 A JP5099851 A JP 5099851A JP 9985193 A JP9985193 A JP 9985193A JP H06304484 A JPH06304484 A JP H06304484A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- foil
- flat
- temperature
- corrugated
- 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- Withdrawn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 abstract description 8
- 239000011888 foil Substances 0.000 claims abstract description 81
- 239000002184 metal Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000005304 joining Methods 0.000 abstract description 9
- 239000003054 catalyst Substances 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 description 22
- 238000005219 brazing Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000969 carrier 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
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車エンジンなどの
内燃機関から排出される排ガスを浄化する触媒を担持す
るためのメタル担体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a metal carrier for carrying a catalyst for purifying exhaust gas discharged from an internal combustion engine such as an automobile engine.
【０００２】[0002]
【従来の技術】メタル担体は厚さ５０μｍ程度の耐熱性
ステンレス鋼の平坦な金属箔（以下、平箔という）と、
この平箔を波付け加工した金属箔（以下、波箔という）
を重ねて渦巻状に巻き回し、あるいは交互に重ねて積層
しハニカム体を成形し、このハニカム体をステンレス鋼
などの耐蝕性、耐熱性金属で製造した外筒に収納、固定
して構成されている。このメタル担体は、排ガス浄化用
の触媒を担持させたのち、例えば自動車エンジンの排ガ
ス経路内に搭載固定されて使用されるが、加熱、冷却の
熱サイクルおよびハニカム体内部の温度分布差による熱
応力・熱疲労に耐えることが要求される。2. Description of the Related Art A metal carrier is a flat metal foil of heat-resistant stainless steel (hereinafter referred to as flat foil) having a thickness of about 50 μm,
Metal foil obtained by corrugating this flat foil (hereinafter referred to as corrugated foil)
It is constructed by stacking and spirally winding, or alternately stacking and stacking to form a honeycomb body, and storing and fixing this honeycomb body in an outer cylinder made of corrosion-resistant and heat-resistant metal such as stainless steel. There is. This metal carrier is used after being loaded with a catalyst for purifying exhaust gas and then mounted and fixed in the exhaust gas path of an automobile engine, for example, due to thermal cycles of heating and cooling and thermal stress due to the difference in temperature distribution inside the honeycomb body. -It is required to endure thermal fatigue.
【０００３】このためには、ハニカム体内部の平箔と波
箔との当接部およびハニカム体とこれを収容する金属製
外筒との合理的な接合が不可欠である。ハニカム体内部
またはハニカム体と外筒との間の特定部位は強固に接合
されている必要があるが、全面接合など全体にリジッド
に接合されていると、接合部近傍には大きな熱応力が発
生し、熱疲労により外筒とハニカム体の接合部が破壊し
たり、あるいはハニカム体内部が破壊してハニカム体が
外筒から脱落してエンジントラブルあるいは排ガス浄化
能が低下するなどの問題が発生する。For this purpose, it is essential to make a rational joint between the flat foil and the corrugated foil inside the honeycomb body, and between the honeycomb body and the metallic outer cylinder that houses the honeycomb body. It is necessary to firmly bond the inside of the honeycomb body or a specific part between the honeycomb body and the outer cylinder, but if it is rigidly bonded to the entire surface such as full surface bonding, a large thermal stress will be generated near the bonded part. However, due to thermal fatigue, the joint between the outer cylinder and the honeycomb body may be destroyed, or the inside of the honeycomb body may be destroyed and the honeycomb body may fall out of the outer cylinder, causing engine trouble or reduced exhaust gas purification performance. .
【０００４】これを防止するため、ハニカム体の平箔と
波箔との当接部を全面接合しないで、例えば特公昭６３
−４１４６６号公報のようにハニカム体の少なくとも一
方の端面近傍のみろう付けする方法や、西独特許公開第
３，３１２，９４４号明細書に開示されているように、
平箔と波箔の一部を柔軟な接合構造としたもの、あるい
は特開昭６２−１９４４３６号公報のようにハニカム体
と外筒を局部的に接合する構造が提案されている。しか
し、これらの各例においては、平箔と波箔の特定接合部
はろう付けにより接合されており、ろう付け接合法の場
合、ろう剤のコスト上の問題の他に、ろう剤成分が平箔
あるいは波箔に拡散し、その高温強度および耐酸化性等
を劣化させる問題、あるいはろう剤供給が多すぎると平
箔あるいは波箔を溶蝕（ろう蝕）するなどの問題があ
る。In order to prevent this, the abutting portion between the flat foil and the corrugated foil of the honeycomb body is not entirely joined, but, for example, Japanese Patent Publication No.
As disclosed in West German Patent Publication No. 3,312,944, a method of brazing only the vicinity of at least one end face of the honeycomb body as in Japanese Patent Publication No. 41466/41.
There is proposed a structure in which a flat foil and a corrugated foil are partly made into a flexible joint structure, or a structure in which a honeycomb body and an outer cylinder are locally joined as in JP-A-62-194436. However, in each of these examples, the specific joining portion of the flat foil and the corrugated foil is joined by brazing, and in the case of the brazing joining method, in addition to the cost problem of the brazing agent, the brazing agent component is not flat. There is a problem that it diffuses into the foil or corrugated foil and deteriorates its high-temperature strength and oxidation resistance, etc., or if too much brazing agent is supplied, it will corrode the flat foil or corrugated foil.
【０００５】そのため、ろう剤を用いない方法として、
特開昭５４−１３４６２号公報や特開昭６３−３６８４
３号公報に開示されているように電子ビームやレーザー
などの高密度エネルギーにより接合するもの、特開昭５
４−１３４６２号公報のように抵抗溶接によって平箔と
波箔を接合することが提示されているが、これらはいず
れも接合速度が律速となり、そのため生産性を高めてコ
ストを下げることには限界がある。Therefore, as a method not using a brazing agent,
JP-A-54-13462 and JP-A-63-3684
Those which are joined by high-density energy such as an electron beam or a laser as disclosed in JP-A-3,
It has been proposed to join a flat foil and a corrugated foil by resistance welding as in Japanese Laid-Open Patent Publication No. 4-13462-1. However, in both of these, the joining speed is rate-determining, so that there is a limit to increasing productivity and reducing cost. There is.
【０００６】さらに、特開昭５６−８５５１４号公報に
は当接部の接合を焼結による方法が、また特開平１−２
１８６３６号公報では、拡散接合による方法が記述され
ている。このような焼結法や拡散接合法によれば、前述
したようなろう付け接合に伴う特性上、あるいは作業上
の問題を一応解決することは可能であるが、これらの処
理により十分な接合部の強度を得るには、高温度で長時
間加熱処理を行うことと、平箔と波箔の接合部に相当大
きい圧力を加えることなどが必要である。この要求を満
たすため、特開平２−１４７４７号公報には、ハニカム
体を収納した外筒を絞って縮径し、平箔と波箔の接合部
およびハニカム体と外筒の密着性（面圧）を向上させた
後拡散接合することを提案しているが十分な拡散接合が
得られない。Further, Japanese Patent Application Laid-Open No. 56-85514 discloses a method of sintering the abutting portion by sintering, and Japanese Patent Application Laid-Open No. 1-255 / 1982.
Japanese Patent No. 18636 describes a method using diffusion bonding. With such a sintering method or a diffusion bonding method, it is possible to solve the above-mentioned characteristic or work problems associated with brazing bonding, but these treatments provide sufficient bonding. In order to obtain the above strength, it is necessary to perform a heat treatment at a high temperature for a long time and to apply a considerably large pressure to the joint portion between the flat foil and the corrugated foil. In order to meet this requirement, in Japanese Patent Laid-Open No. 14747/1990, the outer cylinder containing the honeycomb body is squeezed to reduce the diameter, and the joint between the flat foil and the corrugated foil and the adhesion between the honeycomb body and the outer cylinder (contact pressure) ) Is improved and then diffusion bonding is proposed, but sufficient diffusion bonding cannot be obtained.
【０００７】さらに、外筒とハニカム体の接合について
も、ろう付け法の場合は、上述の平箔と波箔の当接部の
接合と同様の問題があり、また、外筒とハニカム体を機
械的手段、例えばリテーナー止めをする場合はハニカム
体が、リテーナーに食い込んで破損するなどの問題があ
る。Further, regarding the joining of the outer cylinder and the honeycomb body, in the case of the brazing method, there are the same problems as the above-mentioned joining of the contact portions of the flat foil and the corrugated foil, and the outer cylinder and the honeycomb body are joined together. There is a problem that mechanical means, for example, when the retainer is stopped, the honeycomb body bites into the retainer and is damaged.
【０００８】[0008]
【発明が解決しようとする課題】上述のように、メタル
担体の拡散接合についても多くの提案がなされている
が、高温での長時間の加熱処理は製造コストの増大とと
もに、生産性を阻害し、また、ハニカム体を収容した外
筒を絞って縮径することによる密着性の向上も、その絞
り効果はハニカム体外周のみ有効で、それ以外の箇所で
は不十分となる傾向がある。As described above, many proposals have been made for diffusion bonding of metal carriers, but heat treatment at high temperature for a long time increases production cost and hinders productivity. Also, the improvement of the adhesiveness by squeezing and reducing the diameter of the outer cylinder containing the honeycomb body tends to be effective only at the outer periphery of the honeycomb body and insufficient at other portions.
【０００９】なお、外筒を絞ることは、平箔と波箔の押
し付け力を高めることにより、その接触圧を上げて良好
な拡散接合を行うことを目的としているが、板厚が５０
μｍと極めて薄く、容易に変形するため実質的に接触面
圧が高くならず、金属箔表面の凹凸などから微視的に接
触が点接触になってしまう。このため、接合部は平箔と
波箔の接触線に沿った連続的な線状の拡散接合になら
ず、不連続な点状の拡散接合になってしまい、このよう
な担体をエンジンに搭載して耐久性を試験すると、接合
が不十分なため、平箔あるいは波箔の一部が欠損した
り、層間剥離を起こすなどの問題が発生する。また、ハ
ニカム体と外筒の接合部での破壊はハニカム体の外筒か
らの離脱などのトラブルに直結する。The purpose of squeezing the outer cylinder is to increase the pressing force between the flat foil and the corrugated foil, thereby increasing the contact pressure of the flat foil and the corrugated foil to achieve good diffusion bonding.
The contact surface pressure does not substantially increase because it is extremely thin as μm and is easily deformed, and the contact is microscopically point contact due to irregularities on the metal foil surface. Therefore, the joint is not a continuous linear diffusion bond along the contact line between the flat foil and the corrugated foil, but a discontinuous dot diffusion bond, and such a carrier is mounted on the engine. Then, when the durability is tested, the joining is insufficient, so that problems such as partial breakage of the flat foil or the corrugated foil and delamination occur. Further, breakage at the joint portion between the honeycomb body and the outer cylinder directly leads to trouble such as detachment of the honeycomb body from the outer cylinder.
【００１０】したがって、本発明は、ハニカム体および
ハニカム体と外筒の接合において、上述のような問題点
を解消するものであって、ハニカム体を構成する平箔と
波箔の当接部あるいは外筒とハニカム体間の接合部分が
必要十分な強度を有する拡散接合構造のメタル担体の製
造方法を提供することを目的とする。Therefore, the present invention solves the above-mentioned problems in the honeycomb body and the joining of the honeycomb body and the outer cylinder. An object of the present invention is to provide a method for manufacturing a metal carrier having a diffusion bonding structure in which a bonding portion between an outer cylinder and a honeycomb body has necessary and sufficient strength.
【００１１】[0011]
【課題を解決するための手段】本発明は、上記課題を解
決するため、ハニカム体を金属製の外筒に組込んだの
ち、真空等の非酸化性雰囲気に保持した炉内にて中間温
度に所定時間保持し、箔にクリープを生じさせ、平箔と
波箔の相互間の接触部分を変形させミクロ的に充分な接
触を起こさせて馴染みをよくするとともに、この接触部
の表面酸化膜を物理的に破壊し、これら相互間の拡散接
合が生じ易い状態にして、さらに昇温してこれら箔の当
接部を拡散接合させるという手段を講じた。すなわち、
本発明は、平坦な金属箔と波付け加工した金属箔を積層
あるいは巻回して作成する金属製ハニカム体を形成し、
ついで該ハニカム体を金属製の外筒に組込んだのち、真
空炉内にて中間温度に所定時間保持し、ハニカム体にク
リープを生じさせ、ついで、さらに昇温して平坦な金属
箔と波付け加工した金属箔の当接部を拡散接合させるこ
とを特徴とするメタル担体の製造方法を提供するもので
ある。上記中間温度は７００〜８００℃程度とし、この
温度範囲に３０〜６０分保持することが好ましい。In order to solve the above-mentioned problems, according to the present invention, after the honeycomb body is assembled in a metal outer cylinder, the intermediate temperature is set in a furnace kept in a non-oxidizing atmosphere such as vacuum. After a certain period of time, the foil creeps, the contact area between the flat foil and the corrugated foil is deformed, and sufficient contact is made microscopically to improve the familiarity and the surface oxide film of this contact area. Was physically destroyed to make diffusion bonding between them easier to occur, and then the temperature was further raised to diffuse-bond the contact portions of these foils. That is,
The present invention forms a metal honeycomb body that is created by laminating or winding a flat metal foil and a corrugated metal foil,
Then, the honeycomb body was assembled in a metal outer cylinder, and then kept at an intermediate temperature for a predetermined time in a vacuum furnace to cause creep in the honeycomb body, and then further heated to flat metal foil and wave. The present invention provides a method for producing a metal carrier, which comprises diffusing and joining the abutting portions of the metal foil that has been subjected to the attachment processing. It is preferable that the intermediate temperature is about 700 to 800 ° C., and the temperature is kept in this temperature range for 30 to 60 minutes.
【００１２】[0012]
【作用】平箔および波箔からなるハニカム体を金属製の
外筒に組込んだのち、真空炉内にて中間温度に所定時間
保持し、箔にクリープを生じさせることにより、平箔と
波箔の相互間の接触が充分になるように馴染ませるとと
もに、この時接触部の表面酸化膜も物理的に破壊し、こ
れら相互間の拡散接合が進展し易い状態になる。そのた
め、これらを所定の拡散接合温度にさらに昇温して箔の
当接部を拡散接合させたとき、箔相互間の拡散が促進さ
れ強固な拡散接合が達成される。[Function] After the honeycomb body composed of the flat foil and the corrugated foil is assembled in the metal outer cylinder, the flat foil and the corrugated foil are corroded by maintaining the intermediate temperature for a predetermined time in the vacuum furnace to cause the foil to creep. While accommodating the foils so that they are sufficiently in contact with each other, the surface oxide film at the contact portion is also physically destroyed at this time, and diffusion bonding between these foils is likely to progress. Therefore, when these are further heated to a predetermined diffusion bonding temperature and the contact portions of the foils are diffusion bonded, diffusion between the foils is promoted and strong diffusion bonding is achieved.
【００１３】[0013]
【実施例】図１に示すように、２０Ｃｒ−５Ａｌ−残部
Ｆｅからなるフェライト系ステンレス鋼からなる幅１０
０mm、厚さ５０μｍの平箔１と、同じものをコルゲート
加工した波箔２（波高１．２mm、波ピッチ２．４mm）と
を、互いに重ね合わせながらバックテンション５〜２０
Kgを掛けて巻回し、直径９８mmのハニカム体３を形成し
た。このハニカム体３の外面に図２に示すように拡散接
合促進物質として粒径３〜５μｍの鱗状黒鉛を５％含有
する水溶性熱硬化型ポリマーを主成分とする液状塗布剤
４を下半分の範囲に塗布し、これを同じくフェライト系
ステンレス鋼からなる直径１００mm×長さ１００mmの外
筒５に圧入した。次いでこのように成形したメタル担体
真空炉に装入し、を７００〜８００℃まで昇温し、その
温度で３０〜６０分保定し、平箔１、波箔２にクリープ
を生じさせた。引き続き１２００〜１２５０℃まで昇温
し、その温度で３０〜６０分保持したのち、１２００〜
１０００℃まで炉冷し、さらに非酸化性ガス（Ｈｅ、Ｎ
2 等）を吹き込み急冷した。EXAMPLE As shown in FIG. 1, a width 10 made of ferritic stainless steel consisting of 20Cr-5Al-the balance Fe.
Back tension 5 to 20 while superimposing a flat foil 1 with a thickness of 0 mm and a thickness of 50 μm and a corrugated foil 2 (wave height 1.2 mm, wave pitch 2.4 mm) obtained by corrugating the same.
The honeycomb body 3 having a diameter of 98 mm was formed by multiplying by Kg and winding. As shown in FIG. 2, on the outer surface of the honeycomb body 3, the lower half of the liquid coating agent 4 containing a water-soluble thermosetting polymer containing 5% of scaly graphite having a particle size of 3 to 5 μm as a diffusion bonding promoting substance is used. The coating was applied to the range, and this was pressed into an outer cylinder 5 made of ferritic stainless steel and having a diameter of 100 mm and a length of 100 mm. Then, the metal carrier vacuum furnace thus formed was charged, the temperature was raised to 700 to 800 ° C., and the temperature was held for 30 to 60 minutes to cause the flat foil 1 and the corrugated foil 2 to creep. Subsequently, the temperature is raised to 1200 to 1250 ° C., and the temperature is maintained for 30 to 60 minutes, then 1200 to 1250 ° C.
The furnace is cooled to 1000 ° C., and non-oxidizing gas (He, N
2 etc.) was blown in to quench.
【００１４】上述のクリープにより互の箔１、２表面の
凹凸が潰され、或いは平箔１、波箔２間の接触が不安定
になっている部分が馴染む現象が生じる。この時接触部
の表面酸化膜が物理的に破壊され箔の生地が現れる。す
なわち、このような現象により図３に示すように、これ
ら相互間の接触面積が拡大し十分な接触状態が得られる
等、拡散接合が進展しやすい状況が形成され、高温加熱
−強固な拡散接合が生じていることが確認された。Due to the above-mentioned creep, the unevenness of the surfaces of the foils 1 and 2 is crushed, or the part where the contact between the flat foil 1 and the corrugated foil 2 is unstable becomes familiar. At this time, the surface oxide film at the contact portion is physically destroyed and the foil material appears. That is, due to such a phenomenon, as shown in FIG. 3, the contact area between them is enlarged and a sufficient contact state is obtained, so that a situation in which diffusion bonding is likely to progress is formed. Was confirmed to have occurred.
【００１５】[0015]
【比較例】上記実施例と同様にしてハニカム体を作成
し、これを外筒に圧入したのち、実施例１と同様に熱処
理した。ただし、この場合、７００〜８００℃の中間温
度で保定することをせず、１２００〜１２５０℃まで昇
温し、その温度で３０〜６０分保持したのち、１２００
〜１０００℃まで炉冷し、さらに非酸化性ガス（Ｈｅ、
Ｎ2 ）を吹き込み急冷した。なお、１２００〜１２５０
℃まで昇温時において、炉内の真空度が５００℃辺りで
自然に低下するため、この温度で自然に保定がなされ
た。その結果、図４に示すように平箔１、波箔２相互間
の接触部に実施例１におけるような馴染み現象は見られ
ず、これら相互間の接触面積が不十分で実施例１と比較
して拡散接合も十分に強固なものとはならなかった。COMPARATIVE EXAMPLE A honeycomb body was prepared in the same manner as in the above-mentioned example, pressed into an outer cylinder, and then heat-treated in the same manner as in Example 1. However, in this case, without holding at an intermediate temperature of 700 to 800 ° C., the temperature is raised to 1200 to 1250 ° C. and held at that temperature for 30 to 60 minutes, and then 1200
The furnace is cooled to ~ 1000 ° C, and a non-oxidizing gas (He,
It was rapidly cooled by blowing N 2 ). In addition, 1200 to 1250
When the temperature was raised to 0 ° C, the degree of vacuum in the furnace naturally decreased around 500 ° C, so that the temperature was naturally retained. As a result, as shown in FIG. 4, the familiar phenomenon as in Example 1 was not seen in the contact portion between the flat foil 1 and the corrugated foil 2, and the contact area between these was insufficient and compared with Example 1. Then, the diffusion bonding was not strong enough.
【００１６】[0016]
【発明の効果】以上詳述したように、本発明によれば、
平箔および波箔からなるハニカム体を金属製の外筒に組
込んだのち、真空炉内にて拡散接合温度にて熱処理する
前に、いったん中間温度に所定時間保持し、ハニカム体
にクリープを意図的に生じさせるようにしたため、平箔
と波箔の相互間の拡散接合が進展し易い状況になり、そ
の結果、これら箔の当接部の拡散が促進され強固な拡散
接合が達成される。As described in detail above, according to the present invention,
After assembling a honeycomb body made of flat foil and corrugated foil into a metal outer cylinder, before heat-treating at a diffusion bonding temperature in a vacuum furnace, once hold at an intermediate temperature for a predetermined time to creep the honeycomb body. Since it is intentionally generated, the diffusion bonding between the flat foil and the corrugated foil is likely to progress, and as a result, the diffusion of the abutting portions of these foils is promoted and a strong diffusion bonding is achieved. .
【図１】本発明の方法を説明するためのハニカム体の斜
視図。FIG. 1 is a perspective view of a honeycomb body for explaining a method of the present invention.
【図２】本発明の方法を説明するためのハニカム体の斜
視図。FIG. 2 is a perspective view of a honeycomb body for explaining the method of the present invention.
【図３】本発明の方法により得られる平箔と波箔との接
触部の状態を拡大して示す断面図。FIG. 3 is an enlarged sectional view showing a state of a contact portion between a flat foil and a corrugated foil obtained by the method of the present invention.
【図４】比較例の方法により得られる平箔と波箔との接
触部の状態を拡大して示す断面図。FIG. 4 is an enlarged sectional view showing a state of a contact portion between a flat foil and a corrugated foil obtained by a method of a comparative example.
１…平箔 ２…波箔 ３…ハニカム体 ４…液状塗布剤 ５…外筒 1 ... Flat foil 2 ... Corrugated foil 3 ... Honeycomb body 4 ... Liquid coating agent 5 ... Outer cylinder
Claims (2)
積層あるいは巻回して作成する金属製ハニカム体を形成
し、ついで該ハニカム体を金属製の外筒に組込んだの
ち、非酸化性雰囲気で加熱し、７００〜８００℃の中間
温度に所定時間保持して、ハニカム体にクリープを生じ
させ、ついで、さらに昇温して平坦な金属箔と波付け加
工した金属箔の当接部を拡散接合させることを特徴とす
るメタル担体の製造方法。1. A metal honeycomb body is formed by laminating or winding a flat metal foil and a corrugated metal foil, and then the honeycomb body is assembled in a metal outer cylinder and then non-oxidized. Of the flat metal foil and the corrugated metal foil by further raising the temperature by heating in a neutral atmosphere and maintaining at an intermediate temperature of 700 to 800 ° C. for a predetermined time to cause creep in the honeycomb body. A method for manufacturing a metal carrier, which comprises:
を３０〜６０分とする請求項１記載のメタル担体の製造
方法。2. The method for producing a metal carrier according to claim 1, wherein the holding time at an intermediate temperature of 700 to 800 ° C. is 30 to 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099851A JPH06304484A (en) | 1993-04-26 | 1993-04-26 | Manufacture of metallic carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5099851A JPH06304484A (en) | 1993-04-26 | 1993-04-26 | Manufacture of metallic carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06304484A true JPH06304484A (en) | 1994-11-01 |
Family
ID=14258311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5099851A Withdrawn JPH06304484A (en) | 1993-04-26 | 1993-04-26 | Manufacture of metallic carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06304484A (en) |
-
1993
- 1993-04-26 JP JP5099851A patent/JPH06304484A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000704 |