JP3120868B2 - Manufacturing method of metal carrier by diffusion bonding - Google Patents
Manufacturing method of metal carrier by diffusion bondingInfo
- Publication number
- JP3120868B2 JP3120868B2 JP03171435A JP17143591A JP3120868B2 JP 3120868 B2 JP3120868 B2 JP 3120868B2 JP 03171435 A JP03171435 A JP 03171435A JP 17143591 A JP17143591 A JP 17143591A JP 3120868 B2 JP3120868 B2 JP 3120868B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- outer cylinder
- corrugated
- diffusion bonding
- bonding
- 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
- 239000002184 metal Substances 0.000 title claims description 20
- 238000009792 diffusion process Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims description 14
- 238000005219 brazing Methods 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000007767 bonding agent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 239000003112 inhibitor Substances 0.000 description 7
- 238000005304 joining Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 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
-
- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
- F01N2330/04—Methods of manufacturing
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触媒を担
持するメタル担体を、拡散接合によって製造する方法に
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 manufacturing a metal carrier carrying a catalyst for purifying exhaust gas discharged from an internal combustion engine such as an automobile engine by diffusion bonding.
【０００２】[0002]
【従来の技術】メタル担体は、耐熱金属よりなる平板
（箔）と、この平板を波形に加工した波板（箔）とを交
互に重ねて積層し、或いは渦巻き状に巻回してハニカム
体を作り、これをステンレス鋼等の耐食、耐熱性金属で
製造した外筒に収納し、ロウ材等で接合固定して構成さ
れている。2. Description of the Related Art A metal carrier is formed by alternately laminating a flat plate (foil) made of a heat-resistant metal and a corrugated plate (foil) obtained by processing the flat plate into a corrugated shape, or by winding in a spiral shape to form a honeycomb body. It is housed in an outer cylinder made of a corrosion-resistant and heat-resistant metal such as stainless steel and joined and fixed with a brazing material or the like.
【０００３】このメタル担体は、触媒を担持した後、例
えば自動車エンジンの排ガス系に搭載固定されるが、エ
ンジンの稼働中には振動と高温に晒されるために、ハニ
カム体自体は勿論のこと、外筒との接合も強固でなけれ
ばならない。一方この担体は、エンジンの始動時には急
速に加熱され、ブレーキ時や停車時には冷却されるとい
う急熱−急冷の熱サイクルが走行時には繰り返えされ、
これに伴ってハニカム体に膨脹−収縮が起きる。この様
な状況下において、特に全体的にリッジッドに接合され
ている場合には、外筒とハニカム体との接合部近傍には
大きな応力が発生し、熱疲労を起こしやすく、破断座屈
や剥離が生じるようになる。[0003] After supporting the catalyst, the metal carrier is mounted and fixed on, for example, an exhaust gas system of an automobile engine. However, during operation of the engine, the metal carrier is exposed to vibrations and high temperatures. The connection with the outer cylinder must also be strong. On the other hand, this carrier is rapidly heated when the engine is started, and cooled during braking and stopping, and a rapid heat-cooling heat cycle is repeated during traveling,
As a result, the honeycomb body expands and contracts. Under such circumstances, especially when the entire body is joined to the ridged body, a large stress is generated in the vicinity of the joint between the outer cylinder and the honeycomb body, so that thermal fatigue is likely to occur, and fracture buckling or peeling is caused. Will occur.
【０００４】これを防止するためにハニカム体の平板−
波板の接触部を全面接合することなく、例えば特公昭６
３−４４４６６号公報のようにハニカム体の少なくとも
一方の端面側近傍にのみロウ付け域を設ける方法や西独
特許公開第３，３１２，９４４号明細書に開示されてい
るように、波板の一部と平板とを接合し柔軟な接合構造
としたもの、或いは更に実開昭６２−１９４４３６号の
ように、ハニカム体と外筒を局部的に接合する構造等が
提案されている。しかしこれらの各例は、平板−波板の
特定接触部に適確にロウ材を供給付着させる手段が必要
であり、またロウ材の供給が過度になると接合部板の成
分を変化させ、耐食性や高温強度を劣化することにな
る。In order to prevent this, a flat plate of a honeycomb body is used.
Without contacting the entire contact portion of the corrugated sheet, for example,
A method of providing a brazing region only near at least one end face side of a honeycomb body as disclosed in Japanese Patent Application Laid-Open No. 3-44466 or a method of forming a corrugated plate as disclosed in West German Patent Publication No. 3,312,944. There has been proposed a structure in which a honeycomb body and an outer cylinder are locally bonded as in a flexible bonding structure in which a portion and a flat plate are bonded to each other, or as disclosed in Japanese Utility Model Application Laid-Open No. Sho 62-194436. However, each of these examples requires a means for accurately supplying and attaching the brazing material to the specific contact portion between the flat plate and the corrugated plate. When the supply of the brazing material is excessive, the composition of the joint plate is changed, and the corrosion resistance is reduced. Or high-temperature strength.
【０００５】そのためにロウ材を用いないで、特開昭５
４−１３４６２号公報や同６３−３６８４３号公報に開
示しているような電子ビームやレーザ等の高密度エネル
ギーを利用するもの、特開昭５４−１３４６２号公報の
用に抵抗溶接によって平板−波板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、高能率化に限界がある。[0005] For that purpose, without using a brazing material,
Utilizing high-density energy such as an electron beam and a laser as disclosed in JP-A-4-113462 and JP-A-63-36843, and flat-wave by resistance welding as disclosed in JP-A-54-13462. It has been proposed to join plates, but in all of these cases, the joining speed is rate-determining, and there is a limit to high efficiency.
【０００６】更に特開昭５６−８５５１４号公報には接
触部の結合を焼結することが、また特開平１−２１８６
３６号公報では拡散接合することが記述されている。こ
の様な焼結や拡散接合により、前述したような特性上、
或いは作業上の問題は一応解消することは可能となる
が、通常波板の山部と谷部の高さが異なったり、平板と
の接触が線状であるため接合部の幅が狭く、疲労強度が
低いため実用での高速高温ガス流により振動し破壊が生
じる。特開平２−１４７４７公報では、ハニカム体を収
納した外筒を絞って、平板−波板の接触部及びハニカム
体と外筒の接触部の密着性を向上させた後拡散接合する
ことを提案している。Further, Japanese Patent Application Laid-Open No. 56-85514 discloses a method of sintering a joint at a contact portion.
No. 36 describes diffusion bonding. Due to such sintering and diffusion bonding,
Alternatively, it is possible to solve the work problem, but the height of the peak and the valley of the corrugated sheet is different, and the contact with the flat plate is linear, so the width of the joint is narrow, Due to its low strength, it vibrates and breaks due to high-speed high-temperature gas flow in practical use. Japanese Patent Application Laid-Open No. 2-14747 proposes that the outer cylinder containing the honeycomb body is squeezed to improve the adhesion between the contact portion between the flat plate and the corrugated plate and the contact portion between the honeycomb body and the outer cylinder, and then to perform diffusion bonding. ing.
【０００７】[0007]
【発明が解決しようとする課題】上記したように、拡散
接合について多くの提案が成されているが、通常の方法
で製作したハニカム体は勿論のこと、外筒を絞った場合
でも線状接触の改善はそれ程期待できない。As described above, many proposals have been made for diffusion bonding. However, not only the honeycomb body manufactured by a normal method but also the linear contact can be obtained even when the outer cylinder is narrowed. The improvement cannot be expected so much.
【０００８】本発明は、ハニカム体の拡散接合におい
て、上述したような問題点を解消するものであり、ハニ
カム体を構成する平板−波板を面状に接触させて充分な
接合強度を付与すると共に、外筒−ハニカム体及び平板
−波板接触部の所望部分をロウ付け及び拡散接合するす
ることにより応力緩和構造として、優れた耐久性を有す
るメタル担体の製造方法を提供するものである。The present invention solves the above-mentioned problems in the diffusion bonding of a honeycomb body, and provides sufficient bonding strength by bringing the flat plate-corrugated plate constituting the honeycomb body into planar contact. In addition, the present invention provides a method for producing a metal carrier having excellent durability as a stress relaxation structure by brazing and diffusion bonding desired portions of an outer cylinder-honeycomb body and a flat plate-corrugated plate contact portion.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に本発明は、頂上部及び谷部に箔（板）厚さ以上の幅で
平らな平行部を有する波板の所定部位に接合防止剤を塗
布し、該波板と平板とを交互に重ねて積層或いは渦巻き
状に巻回してハニカム体を形成し、該ハニカム体を金属
製外筒に挿入した後非酸化性雰囲気で加熱して、前記平
板と波板山部の接触部の所定部位を拡散接合せしめるこ
とを特徴とする拡散接合によるメタル担体の製造方法を
要旨とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for preventing bonding at a predetermined portion of a corrugated sheet having a flat parallel portion having a width larger than the thickness of a foil (plate) at the top and valley. Applying an agent, the corrugated plate and the flat plate are alternately stacked and laminated or spirally wound to form a honeycomb body, and the honeycomb body is heated in a non-oxidizing atmosphere after being inserted into a metal outer cylinder. A gist of the present invention is a method for manufacturing a metal carrier by diffusion bonding, wherein a predetermined portion of a contact portion between the flat plate and the corrugated ridge portion is diffusion bonded.
【００１０】上記本発明を実施する場合には、ハニカム
体の外周又は外筒の内周にロウ剤を付着せしめた後ハニ
カム体を外筒に挿入し、この状態で外筒を縮管せしめて
ハニカム体と一体的にした後、非酸化性雰囲気で加熱し
て、前記拡散接合することが好ましく、これによりハニ
カム体と外筒との密接は勿論のこと、ハニカム体の平板
−波板の面接触部の面圧を高め（ほぼ１０kg／mm2程
度）て短時間で十分の拡散接合が可能とし、接合部を選
択した熱疲労緩和構造とすることができる。In practicing the present invention, the wax is attached to the outer periphery of the honeycomb body or the inner periphery of the outer cylinder, and then the honeycomb body is inserted into the outer cylinder, and the outer cylinder is contracted in this state. After being integrated with the honeycomb body, it is preferable to perform the diffusion bonding by heating in a non-oxidizing atmosphere, so that the honeycomb body and the outer cylinder can be intimately contacted, as well as the flat-corrugated surface of the honeycomb body. By increasing the surface pressure of the contact portion (approximately 10 kg / mm 2 ), sufficient diffusion bonding can be performed in a short time, and a thermal fatigue relaxation structure in which the bonding portion is selected can be obtained.
【００１１】以下に本発明を詳細に説明する。図１は本
発明の製造工程の概略を示す実施例である。（Ａ）図は
ハニカム体１製造の一例を示すもので、ステンレス鋼等
の耐食、耐熱性金属箔よりなる平板２と、この平板に波
付け加工をした波板３とを重ね合わせて渦巻状に巻回
し、所定の大きさのハニカム体１を構成する。Hereinafter, the present invention will be described in detail. FIG. 1 is an embodiment showing an outline of the manufacturing process of the present invention. FIG. 1A shows an example of the manufacture of a honeycomb body 1, in which a flat plate 2 made of a corrosion-resistant and heat-resistant metal foil such as stainless steel and a corrugated plate 3 corrugated on this flat plate are superposed and spirally formed. To form a honeycomb body 1 having a predetermined size.
【００１２】ハニカム体１を構成する波板３は波付け加
工に際し、図２に示すように、頂上部３１および谷部３
２に箔厚ｔと同等以上の幅ｆを有する平坦な平行部３３
を形成して平板との面接触を可能とし、平板との積層或
いは巻回に先立って波板３の前記山頂部３１及び谷部３
２のそれぞれの平行部３３における特定部位に、爾後の
拡散処理で平板−波板が接合しないように接合防止剤４
を塗布する。図中５はハニカム体製造ラインに接離可能
に設けた接合防止剤の塗布装置であって、本例の場合ロ
ール転写塗布方式を採用しており、波板３に接触させる
塗布ロール５の位置或るいは塗布ロールヘの防止剤供給
幅を調整することにより、波板への接合防止剤塗部位を
選択できる。これにより、ハニカム体１に接合部分と非
接合部分（接合防止剤塗布部分）を意図的に形成でき、
目的とする応力緩和構造にすることができる。尚、接合
防止剤の塗布方法は上記方法に限らず、その他スプレイ
や刷毛塗り等の手段を用いてもよい。接合防止剤として
は例えばＴｉ酸化物、或いはＡｌ酸化物等があり、これ
らをコロイド状にして塗布する。When the corrugated sheet 3 constituting the honeycomb body 1 is corrugated, as shown in FIG.
2. A flat parallel portion 33 having a width f equal to or greater than the foil thickness t
To make surface contact with the flat plate, and before the lamination or winding with the flat plate, the peaks 31 and the valleys 3 of the corrugated plate 3 are formed.
2 at a specific portion in each of the parallel portions 33 so as to prevent the flat plate-corrugated plate from being bonded in the subsequent diffusion process.
Is applied. In the figure, reference numeral 5 denotes a bonding agent coating device which is provided on the honeycomb body manufacturing line so as to be capable of coming and going. In this embodiment, a roll transfer coating method is adopted, and the position of the coating roll 5 to be brought into contact with the corrugated plate 3 Alternatively, by adjusting the width of the supply of the inhibitor to the application roll, the application site of the bonding inhibitor to the corrugated sheet can be selected. Thereby, the joining portion and the non-joining portion (joining preventing agent applied portion) can be intentionally formed on the honeycomb body 1,
The intended stress relaxation structure can be obtained. The method of applying the bonding inhibitor is not limited to the above method, and other means such as spraying or brushing may be used. Examples of the bonding inhibitor include Ti oxide and Al oxide, and these are applied in a colloidal state.
【００１３】上記の様にして製造したハニカム体１に
は、（Ｂ）図に示すようにその外周の所定部位にロウ材
６を付着或いは塗布せしめ、別途用意した外筒７に該ハ
ニカム体１を挿入する。この場合ロウ材６はハニカム体
でなく外筒７の内周に付着或いは塗布せしめることがで
きる。外筒７は、耐食性金属（例えばＳＵＳ３０４のよ
うなステンレス鋼）からなり、内径をハニカム体１の外
径よりやや小さくするか、同等若しくはやや大きめにす
る。即ち前者の場合は、ハニカム体１を外筒７に強制的
に押込み（圧入）密着させる方法を採用する。又、後者
の場合には、ハニカム体１は外筒７に比較的容易に挿入
できるが、この儘では密着性に乏しいので（Ｃ）図に示
すように二分割ダイス８，８に外筒７を挟み込み、外周
より圧縮・縮径してハニカム体１と密接一体にさせると
共にハニカム体１内部の平板２と波板３の密着度を上げ
る。もちろん前者の場合にも（Ｃ）図に示すように圧
縮、縮径することにより密着をより確実にできるのは当
然である。このようにして波板３の平行部３３が平板２
により強く接触し、点或いは線状で無く面状の良好な接
触状態になる。尚、外筒を縮径させるには上記方法に限
定されるものでなくローラプレス等公知の手段を採用し
ても良い。As shown in FIG. 1B, a brazing material 6 is attached or applied to a predetermined portion of the outer periphery of the honeycomb body 1 manufactured as described above, and the honeycomb body 1 is mounted on a separately prepared outer cylinder 7. Insert In this case, the brazing material 6 can be attached or applied to the inner periphery of the outer cylinder 7 instead of the honeycomb body. The outer cylinder 7 is made of a corrosion-resistant metal (for example, stainless steel such as SUS304), and has an inner diameter slightly smaller than, equal to, or slightly larger than the outer diameter of the honeycomb body 1. That is, in the former case, a method of forcibly pushing (press-fitting) the honeycomb body 1 into the outer cylinder 7 is adopted. In the latter case, the honeycomb body 1 can be inserted into the outer cylinder 7 relatively easily. However, since the honeycomb body 1 has poor adhesiveness as it is, as shown in FIG. Is compressed and reduced in diameter from the outer periphery to be tightly integrated with the honeycomb body 1 and to increase the degree of adhesion between the flat plate 2 and the corrugated plate 3 inside the honeycomb body 1. Of course, in the former case, it is natural that the close contact can be more reliably achieved by compressing and reducing the diameter as shown in FIG. Thus, the parallel portion 33 of the corrugated plate 3 is
And a good contact state in a planar shape, not a point or a linear shape. The method of reducing the diameter of the outer cylinder is not limited to the above method, and a known means such as a roller press may be employed.
【００１４】この様にハニカム体１と外筒７とが一体に
なり、また平板２と波板３が強固に密着したメタル担体
９は、（Ｄ）図に示すように真空又は非酸化性雰囲気に
保った処理炉（以下真空炉という）１０に装入し、ここ
で約１０００℃〜１３００℃の温度に加熱して、ハニカ
ム体の平板２と波板３の面接触部を拡散接合させる共に
ハニカム体と外筒とをロウ接合し、強度の大きい接合部
を得ることができる。前記熱処理に当たって接合防止剤
の塗布されている接触部は拡散接合されないことは勿論
である。As described above, the metal carrier 9 in which the honeycomb body 1 and the outer cylinder 7 are integrated and the flat plate 2 and the corrugated plate 3 are firmly adhered to each other is formed in a vacuum or non-oxidizing atmosphere as shown in FIG. And then heated to a temperature of about 1000 ° C. to 1300 ° C. to diffusely join the surface contact portions of the honeycomb flat plate 2 and the corrugated plate 3 together. The honeycomb body and the outer cylinder are joined by brazing, so that a joint having high strength can be obtained. In the heat treatment, the contact portions to which the joining preventing agent is applied are of course not subjected to diffusion joining.
【００１５】図３及び図４は非接合部を選択した場合の
メタル担体を例示すものであって、一つは図３（Ａ）に
示すように波板３の一端部から他端部の向かって一定幅
にわたって接合防止剤４を平行部に塗布し、この波板３
を用いてハニカム体を構成した場合、同図（Ｂ）にその
断面を示すように接合剤塗布部（斜線部分）が非接触部
４となり、他の部分である外周部分数巻きと上端面側部
分が拡散接合部を形成する。又、図４は、中央部分に接
合防止剤４を塗布した波板３（Ａ図）を用いた場合であ
り、メタル担体の中央部（斜線部分）に非接触部４が形
成される（Ｂ図）。FIGS. 3 and 4 show an example of a metal carrier when a non-joined portion is selected. One is a portion from one end to the other end of the corrugated plate 3 as shown in FIG. The bonding agent 4 is applied to the parallel portion over a certain width toward the
When the honeycomb body is formed by using the non-contact portion 4 as shown in the cross section in FIG. 7B, the bonding agent application portion (shaded portion) becomes the non-contact portion 4, and the other portions of the outer peripheral portion several turns and the upper end surface side The parts form a diffusion bond. FIG. 4 shows a case where a corrugated sheet 3 (FIG. A) having a central portion coated with a bonding inhibitor 4 is used. Figure).
【００１６】[0016]
【実施例】例えば図３において、箔厚５０μｍの平板、
波高さ１．２mmの波板で直径Ｄ＝８０mm、高さＢ1 ＝１
００mmのハニカム体１において、直径Ｄ2 ＝７７mm、高
さＢ2 ＝８０mmの拡散接合しない部分４を形成する場
合、各Ｌ1 ＝６．０ｍの平板２と波板３が必要である
が、その展開した波板３の内、Ｌ2 ＝５．５ｍ、Ｂ2 ＝
８０mmの範囲に接合防止材を、波板の両面に塗布する。
次に接合防止材に塗布している方（第３図右側）を中心
に、平板と共に巻回することにより、所要のロウ付け構
造を製作することができる。For example, in FIG. 3, a flat plate having a foil thickness of 50 μm,
A wave plate with a wave height of 1.2 mm, diameter D = 80 mm, height B 1 = 1
In the case of forming a non-diffusion-bonded portion 4 having a diameter D 2 = 77 mm and a height B 2 = 80 mm in a 00 mm honeycomb body 1, a flat plate 2 and a corrugated plate 3 each having L 1 = 6.0 m are required. Among the developed corrugated sheets 3, L 2 = 5.5 m and B 2 =
An anti-joining material is applied to both sides of the corrugated sheet in a range of 80 mm.
Next, a required brazing structure can be manufactured by winding together with a flat plate around the one that is applied to the joining prevention material (the right side in FIG. 3).
【００１７】[0017]
【発明の効果】以上説明したように、本発明法によれば
波板の平行部が高い面圧をもって平板と面接触し、有効
な拡散接合が実施できると共に接合を所望の部位に選択
することによって耐熱疲労性の優れた構造体を得ること
ができ、高い耐久性を有するメタル担体を製造すること
ができる。As described above, according to the method of the present invention, the parallel portion of the corrugated sheet is brought into surface contact with the flat plate with a high surface pressure, so that effective diffusion bonding can be performed and the bonding is selected at a desired portion. Thereby, a structure excellent in thermal fatigue resistance can be obtained, and a metal carrier having high durability can be manufactured.
【図１】本発明の製造工程の概略を示す図である。FIG. 1 is a view schematically showing a manufacturing process of the present invention.
【図２】本発明の波板形状の一例を示す図である。FIG. 2 is a view showing an example of a corrugated sheet shape of the present invention.
【図３】（Ａ）図は本発明波板の接合防止剤塗布状況の
一例を示し、（Ｂ）図はこの波板を用いたメタル担体の
断面図を示す。FIG. 3A shows an example of the state of application of a bonding inhibitor on the corrugated sheet of the present invention, and FIG. 3B shows a sectional view of a metal carrier using the corrugated sheet.
【図４】（Ａ）図は本発明波板の接合防止剤塗布状況を
示す他の例であり、（Ｂ）図はこの波板を用いたメタル
担体の断面図を示す。FIG. 4 (A) is another example showing the state of application of a bonding inhibitor to the corrugated sheet of the present invention, and FIG. 4 (B) is a cross-sectional view of a metal carrier using this corrugated sheet.
１：ハニカム体 ２：平板 ３：波板 ３３：平行部 ４：接合防止剤 ５：塗布装置 ６：ロウ材 ７：外筒 ８：ダイス ９：メタル担体 １０：処理炉 1: Honeycomb body 2: Flat plate 3: Corrugated plate 33: Parallel portion 4: Bonding preventive agent 5: Coating device 6: Brazing material 7: Outer cylinder 8: Die 9: Metal carrier 10: Processing furnace
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 37/36 B01D 53/86 B21D 47/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B01J 21/00-37/36 B01D 53/86 B21D 47/00
Claims (2)
で平らな平行部を有する波板の所定部位に接合防止剤を
塗布し、該波板と平板とを交互に重ねて積層或いは渦巻
き状に巻回してハニカム体を形成し、該ハニカム体を金
属製外筒に挿入した後非酸化性雰囲気で加熱して、前記
平板と波板山部の接触部の所定部位を拡散接合せしめる
ことを特徴とする拡散接合によるメタル担体の製造方
法。1. A bonding agent is applied to a predetermined portion of a corrugated sheet having a flat parallel portion with a width equal to or greater than the thickness of a foil (plate) at the top and the valley, and the corrugated sheet and the flat sheet are alternately stacked. To form a honeycomb body by laminating or spirally winding the honeycomb body, inserting the honeycomb body into a metal outer cylinder, and then heating the honeycomb body in a non-oxidizing atmosphere to reduce a predetermined portion of a contact portion between the flat plate and the corrugated mountain portion. A method for producing a metal carrier by diffusion bonding, characterized by diffusion bonding.
剤を付着せしめた後ハニカム体を外筒に挿入し、この状
態で外筒を縮管せしめてハニカム体と一体的にした後、
非酸化性雰囲気で加熱して、前記拡散接合することを特
徴とする請求項１記載のメタル担体の製造方法。2. After attaching a brazing agent to the outer periphery of the honeycomb body or the inner periphery of the outer cylinder, the honeycomb body is inserted into the outer cylinder, and the outer cylinder is contracted in this state to be integrated with the honeycomb body. ,
2. The method according to claim 1, wherein the diffusion bonding is performed by heating in a non-oxidizing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03171435A JP3120868B2 (en) | 1991-07-11 | 1991-07-11 | Manufacturing method of metal carrier by diffusion bonding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03171435A JP3120868B2 (en) | 1991-07-11 | 1991-07-11 | Manufacturing method of metal carrier by diffusion bonding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05131144A JPH05131144A (en) | 1993-05-28 |
| JP3120868B2 true JP3120868B2 (en) | 2000-12-25 |
Family
ID=15923073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03171435A Expired - Fee Related JP3120868B2 (en) | 1991-07-11 | 1991-07-11 | Manufacturing method of metal carrier by diffusion bonding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3120868B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69729597T2 (en) | 1997-05-09 | 2004-11-11 | Nippon Steel Corp. | Heat-resistant foil made of high-alloy, ferritic steel |
-
1991
- 1991-07-11 JP JP03171435A patent/JP3120868B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05131144A (en) | 1993-05-28 |
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