JP3370812B2 - Method for producing metal carrier for exhaust gas purification - Google Patents
Method for producing metal carrier for exhaust gas purificationInfo
- Publication number
- JP3370812B2 JP3370812B2 JP05139995A JP5139995A JP3370812B2 JP 3370812 B2 JP3370812 B2 JP 3370812B2 JP 05139995 A JP05139995 A JP 05139995A JP 5139995 A JP5139995 A JP 5139995A JP 3370812 B2 JP3370812 B2 JP 3370812B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- cutting
- outer cylinder
- metal carrier
- 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
- 239000002184 metal Substances 0.000 title claims description 30
- 229910052751 metal Inorganic materials 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000746 purification Methods 0.000 title claims description 4
- 238000005520 cutting process Methods 0.000 claims description 51
- 239000011888 foil Substances 0.000 claims description 13
- 239000000969 carrier Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車等の排ガスを浄
化するための触媒コンバータ担体として使用するメタル
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 used as a catalytic converter carrier for purifying exhaust gas from automobiles and the like.
【０００２】[0002]
【従来の技術】近年、従来からのセラミックス製担体に
代わり、優れた耐熱性、低圧損性及び搭載性の点から、
ＳＵＳ等の耐熱性金属箔よりなるメタル担体が用いられ
るようになってきた。このメタル担体は、耐熱金属製の
平箔と波箔を重ね合わせて渦巻状に巻回して筒状のハニ
カム体を形成し、該ハニカム体を耐熱金属製の外筒内に
挿入し、適宜平箔と波箔を、また、ハニカム体と外筒を
ろう材等を用いて或いは抵抗溶接で接合して製造され
る。2. Description of the Related Art In recent years, in place of conventional ceramic carriers, in terms of excellent heat resistance, low pressure loss property and mountability,
Metal carriers made of heat-resistant metal foil such as SUS have come to be used. This metal carrier is formed by stacking a flat foil and a corrugated foil made of a heat-resistant metal and spirally winding them to form a tubular honeycomb body, and inserting the honeycomb body into an outer cylinder made of a heat-resistant metal, and appropriately flattening it. The foil and the corrugated foil, and the honeycomb body and the outer cylinder are joined together by using a brazing material or the like or by resistance welding.
【０００３】而して、最近ではメタル担体自体の機能向
上に加えてその生産性の向上が意図されるようになり、
例えば、その例として出来るだけ長尺のメタル担体を製
作し、その後これを成品寸法に合わせて複数に電解複合
切断方式で分断する方法が提案されている（特開平６−
２６２０９１号公報）。Recently, in addition to the improvement of the function of the metal carrier itself, the improvement of its productivity has been intended.
For example, as an example, a method has been proposed in which a metal carrier as long as possible is manufactured, and then this is divided into a plurality of pieces by an electrolytic composite cutting method according to the product size (Japanese Patent Laid-Open No. 6-
262091).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た従来の分断による製造方法では、図３に示す如く、外
筒２とハニカム体１を同時に切断する必要がある。切断
方式としては、電解複合切断或いはワイヤ放電切断が考
えられるが、いずれの切断方式を採用しても、外筒とハ
ニカム体という厚み（通常、外筒厚１．５mm、ハニカム
体厚５０μｍ）と断面構造が非常に異なる二つの材料を
同時に切断するため、切断面にバリやタレが生じやす
く、両者にとって支障のない切断条件を選択して切断を
行わざるを得ず、換言すれば、それぞれの材料にとって
最高の切断条件で切断することができないことから、切
断作業の効率化を図ることには限界があった。However, in the above-mentioned conventional manufacturing method by division, it is necessary to simultaneously cut the outer cylinder 2 and the honeycomb body 1 as shown in FIG. As a cutting method, electrolytic composite cutting or wire discharge cutting can be considered, but whichever cutting method is adopted, the thickness of the outer cylinder and the honeycomb body (usually, outer cylinder thickness 1.5 mm, honeycomb body thickness 50 μm) Since two materials with very different cross-sectional structures are cut at the same time, burrs and sagging are likely to occur on the cut surface, and there is no choice but to perform cutting by selecting cutting conditions that do not hinder both. Since it is not possible to cut under the best cutting conditions for the material, there was a limit to improving the efficiency of cutting work.
【０００５】本発明は、このような従来の製造方法では
達成できなかった切断作業の効率化、即ち、最高の切断
条件で効率よく切断することが可能であって、それによ
ってメタル担体の生産性を向上させることを目的とす
る。The present invention makes it possible to improve the efficiency of the cutting work that cannot be achieved by such a conventional manufacturing method, that is, to perform the cutting efficiently under the highest cutting conditions, and thereby to improve the productivity of the metal carrier. The purpose is to improve.
【０００６】[0006]
【課題を解決するための手段】本発明の要旨は次の通り
である。
（１）耐熱金属製の平箔と波箔を重ね合わせて渦巻状に
巻回してハニカム体を形成し、該ハニカム体を耐熱金属
製外筒内に挿入してメタル担体を製造するに際し、１個
の長尺のハニカム体外周に対し成品寸法に応じた長さを
もつ複数個の相互が向かい合う端部の少なくとも一方に
開先を形成してなる外筒を嵌め込み、次いで各外筒長さ
位置でハニカム体を切断して複数個のメタル担体を得る
ことを特徴とする排ガス浄化用メタル担体の製造方法。
（２）ハニカム体の切断を電解複合切断或いはワイヤ放
電切断にて行うことよりなる（１）記載の排ガス浄化用
メタル担体の製造方法。 The gist of the present invention is as follows. (1) When a flat foil and a corrugated foil made of heat-resistant metal are superposed and spirally wound to form a honeycomb body, and the honeycomb body is inserted into a heat-resistant metal outer cylinder to produce a metal carrier, 1 At least one of the facing ends of a plurality of long honeycomb bodies having a length according to the product dimensions
A method for manufacturing an exhaust gas purifying metal carrier, comprising fitting an outer cylinder having a groove formed therein , and then cutting the honeycomb body at each outer cylinder length position to obtain a plurality of metal carriers. (2) Cutting the honeycomb body by electrolytic composite cutting or wire release
For exhaust gas purification according to (1), which is performed by electric cutting
Method for manufacturing metal carrier.
【０００７】[0007]
【作用】以下、本発明を図面に基づいて詳細に説明す
る。図１は一個の長尺のハニカム体１と最終成品寸法に
応じた長さをもつ２個の短尺外筒２Ａ，２Ｂを示すが、
ハニカム体１の長さは外筒長さの約２倍である（場合に
よっては切断代分だけハニカム体を長めにしておく）。
該ハニカム体１は、耐熱ステンレス製の平箔と同材質の
波箔を重ね合わせて渦巻状に巻回して形成されるが、こ
の製作工程及びこれに用いる巻取り装置は公知のものを
使用し、特に限定しない。また、２個の外筒２は前記の
ハニカム体１の外周部に嵌め込まれるもので、任意の板
厚の耐熱ステンレス鋼板にて製作される。The present invention will be described in detail below with reference to the drawings. FIG. 1 shows one long honeycomb body 1 and two short outer cylinders 2A and 2B having a length according to the final product size.
The length of the honeycomb body 1 is about twice the length of the outer cylinder (in some cases, the honeycomb body is made longer by the cutting margin).
The honeycomb body 1 is formed by superposing a corrugated foil made of the same material as a flat foil made of heat-resistant stainless steel and winding it in a spiral shape. This manufacturing process and a winding device used therefor are known ones. , Not particularly limited. The two outer cylinders 2 are fitted into the outer peripheral portion of the honeycomb body 1 and are made of heat-resistant stainless steel plate having an arbitrary plate thickness.
【０００８】ハニカム体１の外周部に２個の外筒２を嵌
め込む場合には、ハニカム体外径を外筒内径よりも僅か
に大きくしておき、外筒にハニカム体を圧入する方法
か、外筒内径をハニカム体外径よりも僅かに大きくして
おき、外筒内にハニカム体を挿通後外筒を径方向に絞る
方法のいずれかによる。圧入方式の場合、ハニカム体１
の一端より１個の外筒２Ａを圧入した後、ハニカム体１
を転回して他端から別の外筒２Ｂを圧入すればよい。When the two outer cylinders 2 are fitted in the outer peripheral portion of the honeycomb body 1, the honeycomb body outer diameter is made slightly larger than the outer cylinder inner diameter, and the honeycomb body is press-fitted into the outer cylinder. Either by making the inner diameter of the outer cylinder slightly larger than the outer diameter of the honeycomb body and inserting the honeycomb body into the outer cylinder and then squeezing the outer cylinder in the radial direction. In case of press-fitting method, honeycomb body 1
After press-fitting one outer cylinder 2A from one end of the honeycomb body 1,
And the other outer cylinder 2B may be press-fitted from the other end.
【０００９】２個の外筒のハニカム体１外周部に対する
嵌め込みが終了した状態を図２に示す。外筒２Ａ，２Ｂ
相互の突き合わせ部には、図示の如く、開先３を設けて
おきハニカム体の切断に支障のないようにすることが好
ましい。この開先は少なくとも一方だけ形成しておけば
足りる。図２の状態でこれを真空炉等に装入し、平箔と
波箔を、また、必要に応じハニカム体と外筒相互を接合
するが、予め必要箇所にろう材等を貼付しておく。次い
で、開先３位置にてハニカム体１のみを切断し、２個の
メタル担体を得る。なお、１個のハニカム体より２個の
メタル担体を製造する場合に限らず、より長尺のハニカ
ム体を得ることができる場合には、必要に応じて３個以
上の外筒を１個のハニカム体に嵌め込み、外筒数に対応
する３個以上のメタル担体を得ることも可能である。FIG. 2 shows a state in which fitting of the two outer cylinders to the outer peripheral portion of the honeycomb body 1 has been completed. Outer cylinder 2A, 2B
It is preferable that a groove 3 is provided at the abutting portion of each other so as not to interfere with the cutting of the honeycomb body, as shown in the drawing. It suffices if at least one of these grooves is formed. In the state shown in FIG. 2, this is placed in a vacuum furnace or the like to bond the flat foil and the corrugated foil, and if necessary, the honeycomb body and the outer cylinder to each other. . Then, only the honeycomb body 1 is cut at the groove 3 positions to obtain two metal carriers. In addition, not only when two metal carriers are manufactured from one honeycomb body, but when a longer honeycomb body can be obtained, three or more outer cylinders may be combined into one if necessary. It is also possible to fit into a honeycomb body and obtain three or more metal carriers corresponding to the number of outer cylinders.
【００１０】ハニカム体の切断としては、公知のワイヤ
放電加工切断或いは電解複合切断のいずれかを採用す
る。ワイヤ放電切断方式は、電極として細い銅線、黄銅
線、タングステン線を用い、水等の加工液中でワイヤと
被切断材との間に放電させ、その際の熱と圧力により被
加工物を糸鋸式に切断するものであり、また、電解複合
切断方式は、電解液を供給しつつ導電性の砥石を回転さ
せて被切断材に当接し、この被切断材を陽極とし両者間
に電流を流し切断する方法である。いずれの方式を採用
しても、バリやタレのない切断面が得られるが、一般
に、切断速度の面では電解複合切断の方が早く、また、
設備費や操作面ではワイヤ放電切断方式の方が有利であ
る。切断するハニカム体のサイズ、材質等に応じていず
れかを選択すればよい。As the cutting of the honeycomb body, either known wire electric discharge machining cutting or electrolytic composite cutting is adopted. The wire discharge cutting method uses a thin copper wire, brass wire, or tungsten wire as an electrode, discharges the wire between the wire and the material to be cut in a working liquid such as water, and heats and pressures the work piece to remove the work piece. It is a saw-tooth cutting method, and the electrolytic composite cutting method rotates an electrically conductive grindstone while supplying an electrolytic solution to abut the material to be cut, and the material to be cut is used as an anode to generate an electric current between the two. It is a method of sink cutting. Whichever method is used, a cutting surface free of burrs and sagging can be obtained, but generally, in terms of cutting speed, electrolytic composite cutting is faster,
The wire discharge cutting method is more advantageous in terms of equipment cost and operation. Any one may be selected according to the size and material of the honeycomb body to be cut.
【００１１】なお、上記した方法では、最終成品寸法に
対応した外筒を複数個用意し、これらを１個のハニカム
体に嵌め込みハニカム体のみを切断する工程を説明した
が、本発明ではこれに限らず、外筒についても当初はハ
ニカム体と同じ長さのものを１個用意し、この外筒の成
品寸法に応じた位置に予め切り込みを入れておき、ハニ
カム体を挿入してからこの切り込み位置にてワイヤ放電
加工切断或いは電解複合切断により切断してメタル担体
を製造することも包含するものである。切断効率は図２
の方式に比し若干落ちるものの、従来の方式に比較すれ
ば有利性は認められる。In the above-mentioned method, a step of preparing a plurality of outer cylinders corresponding to the final product size and fitting them into one honeycomb body to cut only the honeycomb body has been described. Not only that, but also for the outer cylinder, first prepare one with the same length as the honeycomb body, make a cut in advance at a position according to the product size of this outer cylinder, insert this honeycomb body, and then make this cut It also includes the production of a metal carrier by cutting by wire electric discharge machining or electrolytic composite cutting at a position. Figure 2 shows the cutting efficiency
Although it is slightly lower than that of the conventional method, the advantage is recognized as compared with the conventional method.
【００１２】[0012]
【実施例】本発明の実施例１として１個のφ８７mmのハ
ニカム体の外周に２個の１．５mm厚の外筒を嵌め込み、
ワイヤ放電切断でハニカム体の切断を行った場合、その
切断条件と切断時間を表１に示す。なお、比較例として
上記と同一のハニカム体を、１個の外筒（１．５mm厚）
に挿入したメタル担体（ハニカム体＋外筒）を切断した
場合の例（従来例）を示す。Example 1 As Example 1 of the present invention, two 1.5 mm-thick outer cylinders were fitted around the outer periphery of one φ87 mm honeycomb body,
When the honeycomb body was cut by wire discharge cutting, the cutting conditions and cutting time are shown in Table 1. In addition, as a comparative example, the same honeycomb body as the above is used as one outer cylinder (1.5 mm thick).
An example (conventional example) when the metal carrier (honeycomb body + outer cylinder) inserted in the is cut is shown.
【００１３】また、実施例２として１個のφ４２mmのハ
ニカム体の外周に２個の１．５mm厚の外筒を嵌め込み、
電解複合切断でハニカム体を切断した場合の切断条件と
切断時間についても、比較例と共に表１に示す。As Example 2, two 1.5 mm thick outer cylinders were fitted around the outer circumference of one φ42 mm honeycomb body,
The cutting conditions and the cutting time when the honeycomb body is cut by electrolytic composite cutting are also shown in Table 1 together with the comparative example.
【００１４】表１から分かる如く、いずれの切断によっ
ても実施例及び比較例により切断されて得たメタル担体
の切断面については遜色はなかったが、本発明によると
切断時間が大幅に短くなっている。As can be seen from Table 1, the cut surfaces of the metal carriers obtained by cutting in Examples and Comparative Examples were not inferior to any cutting, but according to the present invention, the cutting time was significantly shortened. There is.
【００１５】[0015]
【表１】 [Table 1]
【００１６】[0016]
【発明の効果】本発明によれば、長尺のメタル担体１個
から複数個の担体が製造でき、しかも、切断時間がハニ
カム体の切断だけであるので、従来の切断時間に比し１
／２〜１／４で済み、大幅な生産性の向上と製作コスト
の低減が図れる。また、ハニカム体のみの切断に合った
最適な切断条件を選べるので、切断品質面でも満足でき
るものが得られた。According to the present invention, a plurality of carriers can be manufactured from one long metal carrier, and the cutting time is only the cutting of the honeycomb body.
/ 2 to 1/4 is required, and it is possible to significantly improve productivity and reduce manufacturing cost. In addition, since the optimum cutting conditions suitable for cutting only the honeycomb body can be selected, satisfactory cutting quality can be obtained.
【図１】本発明方法を説明するためのハニカム体と外筒
の斜視図。FIG. 1 is a perspective view of a honeycomb body and an outer cylinder for explaining a method of the present invention.
【図２】１個のハニカム体の外周に２個の外筒を嵌め込
んだ状態で切断時の断面図。FIG. 2 is a cross-sectional view at the time of cutting in a state where two outer cylinders are fitted around the outer periphery of one honeycomb body.
【図３】従来の分断方式のメタル担体製造工程を説明す
る図。FIG. 3 is a diagram for explaining a conventional metal carrier manufacturing process using a cutting method.
１ ハニカム体 ２ 外筒 ３ 開先 1 Honeycomb body 2 outer cylinder 3 bevels
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内海 徹 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６−262091（ＪＰ，Ａ) 特開 平５−293386（ＪＰ，Ａ) 特開 平６−262090（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 38/74 B01D 53/94 F01N 3/28 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Utsumi 5-3 Tokai-cho, Tokai-shi, Aichi Nippon Steel Corporation Nagoya Steel Works (56) Reference JP-A-6-262091 (JP, A) Kaihei 5-293386 (JP, A) JP-A-6-262090 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B01J 21/00 -38/74 B01D 53/94 F01N 3/28
Claims (2)
渦巻状に巻回してハニカム体を形成し、該ハニカム体を
耐熱金属製外筒内に挿入してメタル担体を製造するに際
し、１個の長尺のハニカム体外周に対し成品寸法に応じ
た長さをもつ複数個の相互が向かい合う端部の少なくと
も一方に開先を形成してなる外筒を嵌め込み、次いで各
外筒長さ位置でハニカム体を切断して複数個のメタル担
体を得ることを特徴とする排ガス浄化用メタル担体の製
造方法。1. When manufacturing a metal carrier by stacking a heat-resistant metal flat foil and a corrugated foil and winding them spirally to form a honeycomb body, and inserting the honeycomb body into a heat-resistant metal outer cylinder. At least an end portion where a plurality of mutually facing ends of a single long honeycomb body have a length according to the product size.
A method for producing a metal carrier for exhaust gas purification, comprising fitting an outer cylinder having a groove formed on one side and then cutting the honeycomb body at each outer cylinder length position to obtain a plurality of metal carriers.
ワイヤ放電切断にて行うことよりなる請求項１記載の排
ガス浄化用メタル担体の製造方法。 2. A honeycomb body is cut by electrolytic composite cutting or
The discharge according to claim 1, which is performed by wire discharge cutting.
Manufacturing method of metal carrier for gas purification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05139995A JP3370812B2 (en) | 1995-03-10 | 1995-03-10 | Method for producing metal carrier for exhaust gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05139995A JP3370812B2 (en) | 1995-03-10 | 1995-03-10 | Method for producing metal carrier for exhaust gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08243403A JPH08243403A (en) | 1996-09-24 |
| JP3370812B2 true JP3370812B2 (en) | 2003-01-27 |
Family
ID=12885875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05139995A Expired - Fee Related JP3370812B2 (en) | 1995-03-10 | 1995-03-10 | Method for producing metal carrier for exhaust gas purification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3370812B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6396748B2 (en) * | 2014-10-02 | 2018-09-26 | 新日鉄住金マテリアルズ株式会社 | Catalyst support substrate, catalyst support, catalyst support substrate manufacturing method, and catalyst support manufacturing method |
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1995
- 1995-03-10 JP JP05139995A patent/JP3370812B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08243403A (en) | 1996-09-24 |
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