JPH0731887A - Manufacture of catalyst carrier made of metal for purifying exhaust gas - Google Patents
Manufacture of catalyst carrier made of metal for purifying exhaust gasInfo
- Publication number
- JPH0731887A JPH0731887A JP5178219A JP17821993A JPH0731887A JP H0731887 A JPH0731887 A JP H0731887A JP 5178219 A JP5178219 A JP 5178219A JP 17821993 A JP17821993 A JP 17821993A JP H0731887 A JPH0731887 A JP H0731887A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- tig welding
- honeycomb
- flat plate
- exhaust gas
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 239000003054 catalyst Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000003466 welding Methods 0.000 claims abstract description 34
- 238000005304 joining Methods 0.000 claims abstract description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 8
- 239000010937 tungsten Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 2
- 238000005219 brazing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 5
- 238000009760 electrical discharge machining Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、排ガス浄化用金属製触
媒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 catalyst carrier for purifying exhaust gas.
【０００２】[0002]
【従来の技術】金属の平板と波板とを重ね合わせて巻き
回すことにより、上記平板と上記波板とで区画された多
数の平行な貫通孔を束ねた形のハニカム筒体を形成し、
これを金属製外筒内に収容・固定した排ガス浄化用金属
製触媒担体が知られている。従来、ハニカム筒体の平板
と波板との接合方法として、特開昭６１−１９９５７４
号公報に開示されているようなろう付け接合法や、特開
昭６３−１８５６２７号公報に開示されているようなレ
ーザ溶接法が提案されている。2. Description of the Related Art A metal flat plate and a corrugated plate are superposed and wound to form a honeycomb cylinder body in which a large number of parallel through holes defined by the flat plate and the corrugated plate are bundled,
There is known a metal catalyst carrier for purifying exhaust gas, which is housed and fixed in a metal outer cylinder. Conventionally, as a method for joining a flat plate and a corrugated plate of a honeycomb cylindrical body, there is disclosed in Japanese Patent Laid-Open No. 61-199574.
Japanese Patent Laid-Open No. 63-185627 and laser welding method have been proposed.
【０００３】しかし、前者のろう付け法ではろう材と平
板や波板とが反応して耐熱性が劣化し、また後者のレー
ザ溶接法ではハニカム筒体の端面全体にレーザビームを
走査させるために非常に長時間を要しコストが高くなる
という問題があった。またコスト低減のためにハニカム
筒体の両端面で放電加工により平板・波板の接合を行う
方法も提案されているが、放電加工では十分な接合強度
が得られないという問題があった。However, in the former brazing method, the brazing material reacts with the flat plate or corrugated plate to deteriorate the heat resistance, and in the latter laser welding method, the laser beam is scanned over the entire end face of the honeycomb cylinder. There is a problem that it takes a very long time and the cost becomes high. Further, a method of joining flat plates and corrugated plates by electrical discharge machining on both end faces of the honeycomb cylinder has also been proposed for cost reduction, but there is a problem that sufficient electrical bond strength cannot be obtained by electrical discharge machining.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、ろう材によ
る耐熱性の劣化を生ずることなく、レーザビーム走査の
ための長時間を必要とせずに、短時間で十分な強度の接
合を行うことができる排ガス浄化用金属製触媒担体の製
造方法を提供することを目的とする。DISCLOSURE OF THE INVENTION According to the present invention, it is possible to perform joining with sufficient strength in a short time without causing a deterioration in heat resistance due to a brazing material and without requiring a long time for laser beam scanning. An object of the present invention is to provide a method for producing a metal catalyst carrier for purifying exhaust gas, which is capable of achieving the above.
【０００５】[0005]
【課題を解決するための手段】上記の目的は、本発明に
よれば、金属の平板と波板とを重ね合わせて巻き回すこ
とにより、平板と波板とで区画された多数の平行な貫通
孔を束ねた形のハニカム筒体を形成する工程、およびハ
ニカム筒体の平板と波板とをＴＩＧ溶接により接合する
工程を含むことを特徴とする排ガス浄化用金属製触媒担
体の製造方法によって達成される。SUMMARY OF THE INVENTION According to the present invention, the above object is to provide a large number of parallel penetrations defined by a flat plate and a corrugated plate by superposing and winding the metal flat plate and the corrugated plate. Achieved by a method for producing a metal catalyst carrier for exhaust gas purification, which comprises a step of forming a honeycomb cylinder body in which holes are bundled, and a step of joining a flat plate and a corrugated plate of the honeycomb cylinder body by TIG welding. To be done.
【０００６】[0006]
【作用】本発明においては、ハニカム筒体の平板と波板
とをＴＩＧ溶接により接合するので、安価且つ短時間で
高品質の接合を行うことができる。本発明者は前記従来
の問題を解消すべく種々検討を重ねた結果、下記のよう
な新規の知見を得て本発明を完成させたものである。In the present invention, since the flat plate of the honeycomb cylindrical body and the corrugated plate are joined by TIG welding, it is possible to perform high-quality joining at low cost in a short time. As a result of various studies to solve the above conventional problems, the present inventor has completed the present invention by obtaining the following new findings.
【０００７】一般に、金属製触媒担体を構成するハニカ
ム筒体は箔状の金属製薄板で形成されている。この薄板
は、厚さが例えば５０μｍ程度と非常に薄いため、通常
の金属板の溶接に用いられているＴＩＧ溶接で溶接しよ
うとすると、溶損が激しくハニカム筒体の気流通路を塞
いでしまう等の問題が発生する。そのため従来は、この
ような薄板の溶接にＴＩＧ溶接を適用することはできな
いというのが一般的な認識であった。Generally, the honeycomb cylindrical body constituting the metal catalyst carrier is formed of a foil-shaped thin metal plate. Since this thin plate has a very thin thickness of, for example, about 50 μm, when it is attempted to weld it by TIG welding which is used for welding of ordinary metal plates, melting loss is severe and the air flow passage of the honeycomb cylinder is blocked. Problem occurs. Therefore, conventionally, it was generally recognized that TIG welding cannot be applied to the welding of such thin plates.
【０００８】しかし本発明者は多数の実験により、溶損
を生ぜずに薄板をＴＩＧ溶接できることを見出した。す
なわち、通常の金属板のＴＩＧ溶接では使用しない小電
力を用い、且つその他の溶接条件を適正に選択すること
により、５０μｍ程度の薄板でも非常に安定した接合が
できる。本発明の望ましい態様によれば、（Ａ）ハニカ
ム筒体の端面で平板と波板とをＴＩＧ溶接により接合す
るか、または（Ｂ）貫通孔にＴＩＧ溶接用タングステン
電極を挿入し、ハニカム筒体の内部で平板と波板とをＴ
ＩＧ溶接により接合する。However, the inventor of the present invention has found from a number of experiments that thin plates can be TIG-welded without causing melting damage. That is, by using a small electric power which is not used in normal TIG welding of metal plates and by appropriately selecting other welding conditions, it is possible to perform very stable joining even for thin plates of about 50 μm. According to a preferred embodiment of the present invention, (A) a flat plate and a corrugated plate are joined by TIG welding at an end face of the honeycomb tubular body, or (B) a tungsten electrode for TIG welding is inserted into a through hole to form a honeycomb tubular body. T and the flat plate and corrugated plate inside
Join by IG welding.
【０００９】以下に、添付図面を参照して、実施例によ
り本発明を更に詳細に説明する。The present invention will now be described in more detail by way of examples with reference to the accompanying drawings.
【００１０】[0010]
〔実施例１〕本発明の前記望ましい態様（Ａ）にしたが
って、排ガス浄化用金属製触媒担体を製造した。図１に
示すように、フェライト系耐熱性ステンレス箔（厚さ５
０μｍ）よりなる平板２と波板３とを重ね巻きし、その
端面４にＴＩＧアークを照射して平板２および波板３の
端面部分のみを溶かし、図２に示すように波板３の頂部
と平板２との接触点５で両者を溶接し、ハニカム筒体１
を形成した。Example 1 A metal catalyst carrier for purifying exhaust gas was produced according to the desirable mode (A) of the present invention. As shown in FIG. 1, a ferritic heat resistant stainless steel foil (thickness 5
0 .mu.m) flat plate 2 and corrugated plate 3 are overlapped and wound, and the end face 4 thereof is irradiated with a TIG arc to melt only the end face portions of the flat plate 2 and corrugated plate 3, and as shown in FIG. And the flat plate 2 at the contact point 5 of the two are welded together to form the honeycomb cylinder 1
Was formed.
【００１１】このＴＩＧ溶接条件は、電流および電圧の
最適値はそれぞれ５〜２０Ａおよび３０Ｖであり、アー
ク放電は０．１〜０．２秒程度で断続させる。タングス
テン電極６は直径φ１ｍｍ、タングステン電極６とハニ
カム筒体１端面との距離７は０．５〜１．５ｍｍ、不活
性ガスのハイアンカップ９とハニカム筒体１端面との距
離１０は３〜７ｍｍが最適である。Under the TIG welding conditions, the optimum values of current and voltage are 5 to 20 A and 30 V, respectively, and the arc discharge is intermittent for about 0.1 to 0.2 seconds. The diameter of the tungsten electrode 6 is 1 mm, the distance 7 between the tungsten electrode 6 and the end face of the honeycomb cylinder 1 is 0.5 to 1.5 mm, and the distance 10 between the high gas cup 9 of the inert gas and the end face of the honeycomb cylinder 1 is 3 to 7 mm. Is the best.
【００１２】本来ＴＩＧ溶接はこのような小電力で行わ
れることはなく、したがって例えば厚さ５０μｍ程度の
薄板の接合に適用されたことはない。しかし上記のよう
な条件でＴＩＧ溶接を行うことにより、ハニカム筒体を
構成するために十分な強度が得られることがわかった。
上記の方法により作製したハニカム筒体の接合強度を、
下記の試験により評価した。Originally, TIG welding was never performed with such a small electric power, and therefore, it has never been applied to joining thin plates having a thickness of about 50 μm. However, it was found that by performing TIG welding under the above conditions, sufficient strength for forming a honeycomb cylinder can be obtained.
The bonding strength of the honeycomb cylinder manufactured by the above method,
The following test evaluated.
【００１３】図３に試験片の外観を示す。ハニカム筒体
１を構成する厚さ５０μｍの平板２と波板３とを２０枚
づつ交互に積層する。その際、平板２を最初の１枚とし
てその上に順次積層し、最後の２０枚目の波板３の上に
更にもう１枚の平板２を重ねてハニカム体とする。この
ハニカム体を最外部の平板２の両側から金属板１１（厚
さ１．５ｍｍ）で挟む。FIG. 3 shows the appearance of the test piece. The flat plate 2 and the corrugated plate 3 each having a thickness of 50 μm and forming the honeycomb cylindrical body 1 are alternately laminated by 20 pieces. At that time, the flat plate 2 is set as the first one and sequentially stacked thereon, and another flat plate 2 is further stacked on the last twentieth corrugated plate 3 to form a honeycomb body. The honeycomb body is sandwiched by metal plates 11 (thickness: 1.5 mm) from both sides of the outermost flat plate 2.
【００１４】次に、ハニカム状に並んだ貫通孔（気流流
路）が見える端面１２を前記と同様な条件でＴＩＧ溶接
して試験片１３を得る。その際、本発明によるＴＩＧ溶
接として、アーク放電を連続させる方法および断続させ
る方法の２つの方法で行った。また、比較材としてＴＩ
Ｇ溶接の代わりに放電加工により端面１２を接合した試
験片も作成した。Next, a test piece 13 is obtained by TIG welding the end face 12 in which the through holes (air flow passages) arranged in a honeycomb shape are visible under the same conditions as described above. At that time, the TIG welding according to the present invention was performed by two methods, that is, a method of making arc discharge continuous and a method of making arc discharge intermittent. Also, as a comparison material, TI
A test piece in which the end face 12 was joined by electrical discharge machining instead of G welding was also prepared.
【００１５】試験片の寸法は、高さ１４が４５ｍｍ、幅
１５が２９ｍｍ、奥行１６が８０ｍｍである。上記のよ
うにして作製した試験片１３を、図４に示すように下型
１８の上に載せる。そして金属板１１から波板３の３つ
分の距離よりも内側の部分の端面１２を上型１９で下方
（矢印１７の方向）に加圧する。加圧力を徐々に増加さ
せ、加圧されている上記内側部分が下方へ抜ける荷重
（抜け荷重）を測定する。用いた下型１８および上型１
９の奥行きはいずれも試験片１３の奥行き１６よりも長
くしてある。The dimensions of the test piece are 45 mm in height 14, 29 mm in width 15 and 80 mm in depth 16. The test piece 13 produced as described above is placed on the lower mold 18 as shown in FIG. Then, the end face 12 of the portion inside the three distances of the corrugated plate 3 from the metal plate 11 is pressed downward (in the direction of arrow 17) by the upper mold 19. The applied pressure is gradually increased, and the load (disengagement load) with which the above-mentioned inner portion under pressure escapes downward is measured. Lower mold 18 and upper mold 1 used
All the depths of 9 are longer than the depth 16 of the test piece 13.
【００１６】上記試験により測定した抜け荷重を図５に
示す。この結果から、ＴＩＧ溶接によりアーク放電を断
続させて接合したものは、放電加工により接合したもの
に比べて抜け荷重で２倍以上の接合強度が得られること
が分かる。またアークを連続させてＴＩＧ溶接したもの
は、放電加工によるものに比べて１．５倍程度の強度で
はあるが、断続アーク放電によるＴＩＧ溶接に比べて作
業時間が短縮できるという利点がある。 〔実施例２〕本発明の前記望ましい態様（Ｂ）にしたが
って、排ガス浄化用金属製触媒担体を製造した。The pull-out load measured by the above test is shown in FIG. From this result, it is understood that the joining strength obtained by interrupting the arc discharge by TIG welding is twice or more that of the joining strength achieved by the electric discharge machining under the pulling load. Moreover, although the strength of the TIG welding with continuous arcs is about 1.5 times that of the electric discharge machining, there is an advantage that the working time can be shortened as compared with the TIG welding by the intermittent arc discharge. Example 2 A metal catalyst carrier for purifying exhaust gas was manufactured according to the desirable mode (B) of the present invention.
【００１７】図６に示すように、先端部２０以外を絶縁
皮膜２１で被覆したタングステン電極６を、厚さ５０μ
ｍの平板２と波板３とを重ね巻きしたハニカム筒体１の
気流流路（貫通孔）２２内に挿入し、ハニカム筒体１内
部の任意に位置でＴＩＧ溶接を行い平板２と波板３とを
接合する。このときのＴＩＧ溶接条件は、電流および電
圧の最適値は１０〜２０Ａおよび３０Ｖであり、放電時
間は０．１〜０．２秒程度、電極径はφ０．５〜１．０
ｍｍ、絶縁皮膜２１は厚さ１００〜２００μｍとする。
これにより平板２と波板３とを溶断せずに接合すること
がきる。As shown in FIG. 6, a tungsten electrode 6 having a portion other than the tip portion 20 covered with an insulating film 21 has a thickness of 50 μm.
The flat plate 2 and the corrugated plate are inserted into the air flow passage (through hole) 22 of the honeycomb cylinder 1 in which the flat plate 2 and the corrugated plate 3 of m are stacked and wound, and TIG welding is performed at an arbitrary position inside the honeycomb cylinder 1. Join 3 and. The TIG welding conditions at this time were that the optimum values of current and voltage were 10 to 20 A and 30 V, the discharge time was about 0.1 to 0.2 seconds, and the electrode diameter was φ0.5 to 1.0.
mm, and the insulating film 21 has a thickness of 100 to 200 μm.
As a result, the flat plate 2 and the corrugated plate 3 can be joined together without fusing.
【００１８】また、多数のタングステン電極６を用い
て、ハニカム筒体の内部で一度に多数箇所をＴＩＧ溶接
することもできる。It is also possible to use a plurality of tungsten electrodes 6 and perform TIG welding at a large number of locations inside the honeycomb cylinder at a time.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によれば、
排ガス浄化用金属製触媒担体の製造において、ろう材に
よる耐熱性の劣化を生ずることなく、レーザビーム走査
のための長時間を必要とせずに、短時間で十分な強度の
接合を行うことができるので、製造コストを大幅に低減
することができる。As described above, according to the present invention,
In the production of a metal catalyst carrier for exhaust gas purification, it is possible to perform bonding with sufficient strength in a short time without causing a deterioration in heat resistance due to a brazing material and without requiring a long time for laser beam scanning. Therefore, the manufacturing cost can be significantly reduced.
【図１】本発明の望ましい態様（Ａ）にしたがって、Ｔ
ＩＧ溶接によりハニカム筒体の端面で平板と波板とを接
合する方法を示す斜視図である。ただし、ハイアンカッ
プ部は断面図で示す。FIG. 1 illustrates T according to a preferred embodiment (A) of the present invention.
It is a perspective view which shows the method of joining a flat plate and a corrugated plate in the end surface of a honeycomb cylinder by IG welding. However, the high uncup portion is shown in a sectional view.
【図２】図１の方法でＴＩＧ溶接されたハニカム筒体端
面の平板と波板との接合部を示す平面図である。FIG. 2 is a plan view showing a joint portion between a flat plate and a corrugated plate on the end face of a honeycomb cylinder which are TIG-welded by the method of FIG.
【図３】ハニカム筒体の接合強度を評価するための抜け
試験用の試験片を示す斜視図である。FIG. 3 is a perspective view showing a test piece for a pull-out test for evaluating the bonding strength of a honeycomb cylinder.
【図４】抜け試験方法を示す断面図である。FIG. 4 is a cross-sectional view showing a removal test method.
【図５】種々の方法で端面の接合を行ったハニカム筒体
について、図４の試験方法で測定した抜け荷重を示すグ
ラフである。[Fig. 5] Fig. 5 is a graph showing a pull-out load measured by the test method of Fig. 4 with respect to a honeycomb cylinder whose end faces are joined by various methods.
【図６】本発明の望ましい態様（Ｂ）にしたがって、Ｔ
ＩＧ溶接によりハニカム筒体の内部で平板と波板とを接
合する方法を示す斜視図である。ただし、ハニカム筒体
の一部を切り開いた状態を示す。FIG. 6 shows the T according to a preferred embodiment (B) of the present invention.
It is a perspective view which shows the method of joining a flat plate and a corrugated plate inside a honeycomb cylinder by IG welding. However, a state in which a part of the honeycomb cylinder is cut open is shown.
１…ハニカム筒体 ２…平板 ３…波板 ４…ハニカム筒体端面 ６…タングステン電極 ２２…気流流路（貫通孔） DESCRIPTION OF SYMBOLS 1 ... Honeycomb cylinder 2 ... Flat plate 3 ... Corrugated plate 4 ... Honeycomb cylinder end surface 6 ... Tungsten electrode 22 ... Air flow channel (through hole)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２３Ｋ 9/167 Ａ 8315−4Ｅ Ｄ 8315−4Ｅ Ｆ０１Ｎ 3/28 ３０１ Ｐ (72)発明者 松尾 清貴 愛知県西尾市下羽角町岩谷14番地 株式会 社日本自動車部品総合研究所内 (72)発明者 市川 宏明 愛知県西尾市下羽角町岩谷14番地 株式会 社日本自動車部品総合研究所内 (72)発明者 横井 政雄 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 伊藤 啓司 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 伊藤 和幸 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 清水 泰史 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B23K 9/167 A 8315-4E D 8315-4E F01N 3/28 301 P (72) Inventor Kiyotaka Matsuo 14 Iwatani, Shimohakaku-cho, Nishio-shi, Aichi, Japan Automotive Parts Research Institute, Inc. (72) Inventor Hiroaki Ichikawa 14 Iwatani, Shimohakaku-cho, Nishio-shi, Aichi, Japan Automotive Parts Research Institute (72) Inventor Masao Yokoi 1-1, Showa-cho, Kariya city, Aichi Prefecture, Nihon Denso Co., Ltd. (72) Inventor, Keiji Ito 1-1, Showa-machi, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (72) Inventor, Kazuyuki Ito Kariya city, Aichi prefecture 1-chome, Showa-machi, Nippon Denso Co., Ltd. (72) Inventor, Yasushi Shimizu 1-1-chome, Showa-machi, Kariya city, Aichi prefecture House
Claims (3)
合わせて巻き回すことにより、上記平板（２）と上記波
板（３）とで区画された多数の平行な貫通孔（２２）を
束ねた形のハニカム筒体（１）を形成する工程、および
上記ハニカム筒体（１）の上記平板（２）と上記波板
（３）とをＴＩＧ溶接により接合する工程を含むことを
特徴とする排ガス浄化用金属製触媒担体の製造方法。1. A large number of parallel through holes defined by the flat plate (2) and the corrugated plate (3) by overlapping and winding the metal flat plate (2) and the corrugated plate (3). A step of forming a honeycomb cylinder body (1) having a bundle of (22) and a step of joining the flat plate (2) and the corrugated plate (3) of the honeycomb cylinder body (1) by TIG welding. A method for producing a metal catalyst carrier for exhaust gas purification, comprising:
上記平板（２）と上記波板（３）とをＴＩＧ溶接により
接合することを特徴とする請求項１記載の排ガス浄化用
金属製触媒担体の製造方法。2. The exhaust gas purifying method according to claim 1, wherein the flat plate (2) and the corrugated plate (3) are joined by TIG welding at the end face (4) of the honeycomb cylindrical body (1). A method for producing a metal catalyst carrier.
グステン電極（６）を挿入し、上記ハニカム筒体（１）
の内部で上記平板（２）と上記波板（３）とをＴＩＧ溶
接により接合することを特徴とする請求項１記載の排ガ
ス浄化用金属製触媒担体の製造方法。3. A TIG welding tungsten electrode (6) is inserted into the through hole (22) to form the honeycomb cylinder (1).
The method for producing a metal catalyst carrier for exhaust gas purification according to claim 1, wherein the flat plate (2) and the corrugated plate (3) are joined inside the chamber by TIG welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17821993A JP3204812B2 (en) | 1993-07-19 | 1993-07-19 | Method for producing metal catalyst carrier for exhaust gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17821993A JP3204812B2 (en) | 1993-07-19 | 1993-07-19 | Method for producing metal catalyst carrier for exhaust gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0731887A true JPH0731887A (en) | 1995-02-03 |
| JP3204812B2 JP3204812B2 (en) | 2001-09-04 |
Family
ID=16044674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17821993A Expired - Fee Related JP3204812B2 (en) | 1993-07-19 | 1993-07-19 | Method for producing metal catalyst carrier for exhaust gas purification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3204812B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092754C (en) * | 1996-07-11 | 2002-10-16 | 本田技研工业株式会社 | Exhaust muffler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858350A (en) | 1993-12-01 | 1999-01-12 | Marine Polymer Technologies | Methods and compositions for poly-β-1→4-N-acetylglucosamine cell therapy system |
-
1993
- 1993-07-19 JP JP17821993A patent/JP3204812B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092754C (en) * | 1996-07-11 | 2002-10-16 | 本田技研工业株式会社 | Exhaust muffler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3204812B2 (en) | 2001-09-04 |
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