JP3153049B2 - Manufacturing method of metal carrier - Google Patents
Manufacturing method of metal carrierInfo
- Publication number
- JP3153049B2 JP3153049B2 JP16352193A JP16352193A JP3153049B2 JP 3153049 B2 JP3153049 B2 JP 3153049B2 JP 16352193 A JP16352193 A JP 16352193A JP 16352193 A JP16352193 A JP 16352193A JP 3153049 B2 JP3153049 B2 JP 3153049B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- outer cylinder
- metal carrier
- peripheral surface
- manufacturing
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000005219 brazing Methods 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 description 7
- 239000003112 inhibitor Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- -1 O 3 Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車エンジン等から
排出される排気ガスを浄化するのに使用されるメタル担
体の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a metal carrier used for purifying exhaust gas emitted from an automobile engine or the like.
【０００２】[0002]
【従来の技術】排気ガス浄化用のメタル担体として、耐
熱金属からなる平板と波板とを交互に積層し、あるいは
重ねた後巻回したハニカム体を外筒に収納したものが種
々開発され、既に一部実用化されている。そして、前記
ハニカム体はその外周面に取り付けた箔ろうやろう剤を
介して外筒に強固に接合されているのが普通であり、こ
の場合、両者の接合はハニカム体の外周面全体でなく例
えば中央部においてのみ帯状に接合されるのが一般的で
ある。これは、ハニカム体の外周面全体を接合してしま
うとハニカム体の半径方向における柔軟性が阻害され、
使用中の衝撃などによってハニカム体の両端部付近が破
壊してしまうという現象が発生するため、これを防止す
る必要があるからである。2. Description of the Related Art Various types of metal carriers for purifying exhaust gas, in which flat and corrugated plates made of a heat-resistant metal are alternately laminated, or a honeycomb body wound after being stacked and stored in an outer cylinder, have been developed. Some are already in practical use. And it is normal that the honeycomb body is firmly joined to the outer cylinder via a foil brazing agent or a brazing agent attached to the outer peripheral surface. In this case, the joining of both is not the entire outer peripheral surface of the honeycomb body. For example, it is common to form a band only at the center. This means that if the entire outer peripheral surface of the honeycomb body is joined, the flexibility of the honeycomb body in the radial direction is impeded,
This is because a phenomenon occurs in which the vicinity of both ends of the honeycomb body is broken due to an impact during use or the like, and it is necessary to prevent this.
【０００３】ところが、前記ハニカム体を外筒内へ圧入
した場合、ハニカム体外表面と外筒内表面との隙間は数
ミクロン程度と極めて狭いのが現実である。そのため両
者間に箔ろうが存在していなくても次工程の高温下で行
うろう付け処理中においてハニカム体の外表面と外筒内
表面とが拡散接合反応を生じ、付着してしまうという現
象が多発した。この結果、ハニカム体の半径方向におけ
る柔軟性が阻害されて割れ等を生じやすくなりメタル担
体としての耐久性が低下するという問題点があった。However, when the honeycomb body is press-fitted into the outer cylinder, the gap between the outer surface of the honeycomb body and the inner surface of the outer cylinder is actually extremely small, about several microns. Therefore, even if no foil brazing is present between the two, the outer surface of the honeycomb body and the inner surface of the outer cylinder undergo a diffusion bonding reaction during the brazing process performed at a high temperature in the next step, and the phenomenon that they adhere to each other. Occurred frequently. As a result, there is a problem that the flexibility of the honeycomb body in the radial direction is hindered, cracks and the like are easily generated, and the durability as a metal carrier is reduced.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記のような
従来の問題点を解決して、ハニカム体の外表面と外筒内
表面との拡散接合反応による付着を防止し、両者の接合
を所定位置においてのみ行わせることができ、耐久性に
優れた高品質のメタル担体を効率よく生産することがで
きるメタル担体の製造方法を提供することを目的として
完成されたものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and prevents the outer surface of the honeycomb body from adhering to the inner surface of the outer cylinder by a diffusion bonding reaction, thereby preventing the honeycomb body from joining. The present invention has been completed for the purpose of providing a method of manufacturing a metal carrier that can be performed only at a predetermined position and that can efficiently produce a high-quality metal carrier having excellent durability.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明のメタル担体の製造方法は、耐熱金
属からなる平板と波板とを交互に積層し、あるいは重ね
た後巻回したハニカム体を外筒に収納したメタル担体の
製造方法において、前記外筒内周面あるいはハニカム体
外周面の少なくとも端部を含む所定箇所に接合防止剤を
円筒状に塗布した後ハニカム体を外筒内に収納し、次い
でろう付け処理することによりハニカム体と外筒間の所
定箇所に未接合部を形成することを特徴とするものであ
る。Means for Solving the Problems To solve the above-mentioned problems, a method of manufacturing a metal carrier according to the present invention is a method of manufacturing a metal carrier, wherein a flat plate made of a heat-resistant metal and a corrugated plate are alternately laminated or wound and then wound. The method for manufacturing a metal carrier in which the formed honeycomb body is housed in an outer cylinder, the inner peripheral surface of the outer cylinder or the honeycomb body
Apply a bonding inhibitor to a predetermined portion including at least the end of the outer peripheral surface.
After being applied in a cylindrical shape, the honeycomb body is housed in an outer cylinder and then brazed to form an unjoined portion at a predetermined position between the honeycomb body and the outer cylinder.
【０００６】次に、本発明を図面を参照しつつ詳細に説
明する。本発明においては、先ず図２に示されるよう
に、常法に従いステンレス鋼のような耐熱金属からなる
平板1aと波板1bとを交互に重ねた後巻回して所定寸法の
ハニカム体１を成形する。次いで、得られたハニカム体
外周面の所定位置に外筒２と接合するための箔ろう３を
取り付ける。Next, the present invention will be described in detail with reference to the drawings. In the present invention, first, as shown in FIG. 2, a flat plate 1a and a corrugated plate 1b made of a heat-resistant metal such as stainless steel are alternately stacked and wound after usual to form a honeycomb body 1 having a predetermined size. I do. Next, a foil braze 3 for joining to the outer cylinder 2 is attached to a predetermined position on the outer peripheral surface of the obtained honeycomb body.
【０００７】一方、図３に示されるように前記ハニカム
体１を収納すべき外筒２の内周面の所定位置には接合防
止剤４を塗布しておく。ここで、外筒２の所定位置とは
前記ハニカム体１の箔ろう３が取り付けられた場所以外
の部分、即ちハニカム体１の外表面と接合することなく
両者間に未接合部を確保したい部分をいう。また、接合
防止剤とは高温下で行うろう付け処理中においてハニカ
ム体の外表面と外筒内表面とが拡散接合反応を生じて付
着することを防止するためのもので、熱的に安定でかつ
融点が1200℃以上の金属酸化物、例えばTiO2、SiO2、V2
O3、Cr2O3 等やSiC 、BN等のセラミック粉末を用いるこ
とができる。そして、これら接合防止剤は溶剤に溶かし
てローラ等により塗布するか、あるいはスプレー塗布な
どにより所定位置に的確に付着させられるものである。
なお、図３においては接合防止剤４を外筒２の内周面に
ローラ５により塗布する場合について示したが、この他
ハニカム体１の外周面の所定位置に接合防止剤を塗布し
ておくことも可能である。On the other hand, as shown in FIG. 3, a bonding inhibitor 4 is applied to a predetermined position on the inner peripheral surface of the outer cylinder 2 in which the honeycomb body 1 is to be stored. Here, the predetermined position of the outer cylinder 2 is a part other than the place where the foil brazing 3 of the honeycomb body 1 is attached, that is, a part where an unjoined portion is to be secured between the two without being joined to the outer surface of the honeycomb body 1. Say. Also, the anti-joining agent is used to prevent the outer surface of the honeycomb body and the inner surface of the outer cylinder from forming a diffusion bonding reaction and adhering during the brazing process performed at a high temperature. And a metal oxide having a melting point of 1200 ° C. or higher, such as TiO 2 , SiO 2 , V 2
Ceramic powder such as O 3 , Cr 2 O 3 , SiC, and BN can be used. These anti-joining agents can be dissolved in a solvent and applied by a roller or the like, or can be accurately attached to a predetermined position by spray application or the like.
Although FIG. 3 shows the case where the anti-joining agent 4 is applied to the inner peripheral surface of the outer cylinder 2 by the roller 5, the anti-joining agent is applied to a predetermined position on the outer peripheral surface of the honeycomb body 1. It is also possible.
【０００８】次に、図４に示されるように、常法に従っ
てハニカム体１をポンチ等（図示せず）により外筒２内
に押圧して収納し、得られたものを加熱器６内に移して
ろう剤の融点以上の温度で加熱処理を施し（図５参照）
平板1aと波板1b間、およびハニカム体１の所定外周面と
外筒２の内周面とをしっかりとろう付けしてメタル担体
を得る。このようにして得られたメタル担体は、ハニカ
ム体１の外周面と外筒２の内周面とが箔ろう３を取り付
けた所定位置のみで確実に接合され、その他の部分にお
いては接合防止剤４によって両者の拡散接合が防止され
た一定幅の未接合部を確保された状態となっているた
め、ハニカム体１の半径方向における柔軟性が維持され
使用時に割れ等を発生させることがない高品質のものと
なる。Next, as shown in FIG. 4, the honeycomb body 1 is pressed and housed in the outer tube 2 by a punch or the like (not shown) according to a conventional method. Transfer and heat-treat it at a temperature equal to or higher than the melting point of the brazing filler metal (see Fig. 5).
A metal carrier is obtained by securely brazing between the flat plate 1a and the corrugated plate 1b, and the predetermined outer peripheral surface of the honeycomb body 1 and the inner peripheral surface of the outer cylinder 2. In the metal carrier thus obtained, the outer peripheral surface of the honeycomb body 1 and the inner peripheral surface of the outer cylinder 2 are securely joined only at a predetermined position where the foil brazing 3 is attached, and in other portions, a joining inhibitor is used. 4, a non-joined portion having a constant width in which diffusion bonding between the two is prevented is secured, so that the flexibility of the honeycomb body 1 in the radial direction is maintained and cracks or the like do not occur during use. It will be of quality.
【０００９】[0009]
【実施例】厚みが５０μm 、幅１００mmの平板および波
板を交互に重ねた後巻回して所定寸法のハニカム体を形
成し、該ハニカム体の接合予定箇所である外周面の下方
部に箔ろうを取り付けた。一方、直径８５mm、長さ１０
０mmの外筒を準備し、該外筒内周面のうちハニカム体と
接合しない部分にはTiO2よりなる接合防止剤をローラで
塗布した。次に、常法によりハニカム体を外筒内に収納
・一体化し、両者をろう付け接合するために加熱器内で
種々の加熱処理条件の下で真空熱処理を施した。このよ
うにして得られたメタル担体の箔ろうが取り付けられて
いない部分を円周方向に切断し、ハニカム体の外周面と
外筒の内周面との拡散接合の有無を調べた結果を表１に
示す。一方、上記の接合防止剤を塗布しない場合に得ら
れるメタル担体を同一条件下で調査した結果を比較例と
して示したが、比較例のものはいずれもハニカム体の外
周面と外筒の内周面との間に拡散接合反応による接合の
発生が認められたのに対して、実施例のものは接合の発
生が完全に防止されており、本発明の優れた効果が確認
できた。EXAMPLE A flat plate and a corrugated plate having a thickness of 50 .mu.m and a width of 100 mm are alternately stacked and then wound to form a honeycomb body having a predetermined size. Was attached. On the other hand, diameter 85mm, length 10
An outer cylinder having a thickness of 0 mm was prepared, and a portion of the inner peripheral surface of the outer cylinder that was not joined to the honeycomb body was coated with a joining inhibitor made of TiO 2 using a roller. Next, the honeycomb body was housed and integrated in an outer cylinder by a conventional method, and subjected to vacuum heat treatment in a heater under various heat treatment conditions in order to braze and join the two. The portion of the metal carrier obtained in this way where the foil braze was not attached was cut in the circumferential direction, and the results of examining the presence or absence of diffusion bonding between the outer peripheral surface of the honeycomb body and the inner peripheral surface of the outer cylinder are shown. It is shown in FIG. On the other hand, the results obtained by investigating the metal carrier obtained without applying the above bonding inhibitor under the same conditions are shown as comparative examples. In each of the comparative examples, the outer peripheral surface of the honeycomb body and the inner peripheral surface of the outer cylinder are shown. Although the occurrence of bonding due to the diffusion bonding reaction was observed between the surface and the surface, the occurrence of bonding was completely prevented in the example, and the excellent effect of the present invention was confirmed.
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
【発明の効果】以上の説明からも明らかなように、本発
明はハニカム体の外表面と外筒内表面との拡散接合反応
による付着を防止し、両者の接合を所定位置においての
み行わせることができ、耐久性に優れた高品質のメタル
担体を効率よく生産することができるものである。よっ
て本発明は従来の問題点を一掃したメタル担体の製造方
法として、産業の発展に寄与するところは極めて大であ
る。As is apparent from the above description, the present invention prevents the outer surface of the honeycomb body from adhering to the inner surface of the outer cylinder by a diffusion bonding reaction and allows the two to be bonded only at a predetermined position. Thus, a high-quality metal carrier having excellent durability can be efficiently produced. Therefore, the present invention is extremely significant as a method for producing a metal carrier that has eliminated the conventional problems and contributes to industrial development.
【図１】本発明によって得られるメタル担体の切欠斜視
図である。FIG. 1 is a cutaway perspective view of a metal carrier obtained according to the present invention.
【図２】本発明におけるハニカム体の成形工程を示す説
明図である。FIG. 2 is an explanatory view showing a honeycomb body forming step in the present invention.
【図３】本発明における接合防止剤の塗布工程を示す説
明図である。FIG. 3 is an explanatory view showing a step of applying a bonding inhibitor in the present invention.
【図４】本発明におけるハニカム体と外筒の組立工程を
示す説明図である。FIG. 4 is an explanatory view showing a process of assembling a honeycomb body and an outer cylinder in the present invention.
【図５】本発明におけるろう付けのための加熱処理工程
を示す説明図である。FIG. 5 is an explanatory view showing a heat treatment step for brazing in the present invention.
１ ハニカム体 1a 平板 1b 波板 ２ 外筒 ４ 接合防止剤 DESCRIPTION OF SYMBOLS 1 Honeycomb body 1a Flat plate 1b Corrugated plate 2 Outer cylinder 4 Joining inhibitor
フロントページの続き (72)発明者 石川 泰 愛知県東海市東海町５−３ 新日本製鐵 株式会社名古屋製鐵所内 (56)参考文献 特開 平３−12235（ＪＰ，Ａ) 特開 平５−131144（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 37/36 B01D 53/86 - 53/94 Continuation of the front page (72) Inventor Yasushi Ishikawa 5-3 Tokai-cho, Tokai City, Aichi Prefecture Nippon Steel Corporation Nagoya Works (56) References JP-A-3-12235 (JP, A) JP-A-5 -131144 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01J 21/00-37/36 B01D 53/86-53/94
Claims (1)
積層し、あるいは重ねた後巻回したハニカム体を外筒に
収納したメタル担体の製造方法において、前記外筒内周
面あるいはハニカム体外周面の少なくとも端部を含む所
定箇所に接合防止剤を円筒状に塗布した後ハニカム体を
外筒内に収納し、次いでろう付け処理することによりハ
ニカム体と外筒間の所定箇所に未接合部を形成すること
を特徴とするメタル担体の製造方法。1. A method of manufacturing a metal carrier in which a flat body and a corrugated sheet made of a heat-resistant metal are alternately laminated or stacked and wound and housed in an outer cylinder.
Or at least the end of the outer peripheral surface of the honeycomb body
After applying the anti-joining agent to the fixed location in a cylindrical shape, the honeycomb body is housed in the outer cylinder, and then a brazing process is performed to form an unjoined portion at a predetermined location between the honeycomb body and the outer cylinder. Manufacturing method of metal carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16352193A JP3153049B2 (en) | 1993-07-01 | 1993-07-01 | Manufacturing method of metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16352193A JP3153049B2 (en) | 1993-07-01 | 1993-07-01 | Manufacturing method of metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0716476A JPH0716476A (en) | 1995-01-20 |
| JP3153049B2 true JP3153049B2 (en) | 2001-04-03 |
Family
ID=15775455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16352193A Expired - Lifetime JP3153049B2 (en) | 1993-07-01 | 1993-07-01 | Manufacturing method of metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3153049B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW587967B (en) * | 2000-04-14 | 2004-05-21 | Emitec Emissionstechnologie | Housing with passivation layer and method for the production of a catalyst support structure with such a housing |
| FR3012651B1 (en) * | 2013-10-24 | 2017-03-31 | Cevenpack | BOTTLE ORNAMENT LABEL, BOTTLE, AND METHOD OF MANUFACTURING SUCH A LABEL |
-
1993
- 1993-07-01 JP JP16352193A patent/JP3153049B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716476A (en) | 1995-01-20 |
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