JP2598071B2 - Method for producing carrier for catalytic converter - Google Patents
Method for producing carrier for catalytic converterInfo
- Publication number
- JP2598071B2 JP2598071B2 JP63058240A JP5824088A JP2598071B2 JP 2598071 B2 JP2598071 B2 JP 2598071B2 JP 63058240 A JP63058240 A JP 63058240A JP 5824088 A JP5824088 A JP 5824088A JP 2598071 B2 JP2598071 B2 JP 2598071B2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- flat plate
- carrier
- joining
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 230000003197 catalytic effect Effects 0.000 title claims description 14
- 238000005304 joining Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000011888 foil Substances 0.000 description 18
- 238000005219 brazing Methods 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、排ガスを浄化するために自動車の搭載され
る触媒コンバータ用担体の製造方法に関し、特に触媒効
率の向上とコストダウンを図ることができるコルゲート
型の担体の製造方法に係るものである。Description: TECHNICAL FIELD The present invention relates to a method of manufacturing a carrier for a catalytic converter mounted on an automobile for purifying exhaust gas, and more particularly to improving catalyst efficiency and reducing costs. The present invention relates to a method for producing a corrugated carrier that can be produced.
［従来の技術とその問題点］ 従来、触媒コンバータの製造は、ろう付けによって行
われているが、触媒コンバータの使用温度におけるろう
付け部の耐熱性、高温強度の問題がある。また、ろう付
けの低生産性、ろう剤の使用等による生産コスト高も問
題である。これを解決するために、例えば特開昭54−13
462号に見られるように、ろう付け以外の接合方法も用
いられているが、この方法では平板と波板の巻き込む時
に箔同士の接合を行うことから、接合速度が律速とな
り、高能率化に限界がある。また、箔の接合後、オフラ
インで外筒に組込む接合が必要であり、コストアップの
原因にもなる。[Conventional technology and its problems] Conventionally, the production of a catalytic converter has been performed by brazing, but there are problems of heat resistance and high-temperature strength of a brazed portion at the operating temperature of the catalytic converter. In addition, low productivity of brazing and high production cost due to the use of a brazing agent are also problems. To solve this, for example, Japanese Patent Application Laid-Open No. 54-13 / 1979
As seen in No. 462, a joining method other than brazing is also used, but in this method, the joining speed is rate-limiting because the foils are joined when the flat plate and the corrugated sheet are rolled in. There is a limit. In addition, after joining the foils, it is necessary to join them in an outer cylinder off-line, which causes an increase in cost.
さらに、排気ガスの流れに対して平行に触媒面を有す
る触媒コンバータの反応面近辺では、ガス流中に厚い境
界層が形成され、触媒反応の効率が良くない欠点があ
り、コンバータの小型化、軽量化に限界があった。これ
を解決するために、特開昭49−74656号では、短いコン
バータを軸方向に並べ、入口効果を利用して触媒反応の
効率を高める方法が提唱されているが、個々の短いコン
バータの製造、固定方法が複雑となり、製造コストアッ
プの原因になる。Further, in the vicinity of the reaction surface of the catalytic converter having a catalyst surface parallel to the flow of exhaust gas, a thick boundary layer is formed in the gas flow, and there is a disadvantage that the efficiency of the catalytic reaction is not good. There was a limit to weight reduction. In order to solve this, Japanese Patent Application Laid-Open No. 49-74656 proposes a method of arranging short converters in the axial direction and increasing the efficiency of the catalytic reaction by utilizing the inlet effect. In addition, the fixing method becomes complicated, which causes an increase in manufacturing cost.
本発明は上記従来技術の問題点を解決し、非常に高能
率でかつ高い触媒効果が期待できる触媒コンバータ用担
体の製造方法を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a method for producing a carrier for a catalytic converter, which can be expected to have a very high efficiency and a high catalytic effect.
［問題点を解決するための手段］ この目的を達成するための本発明の担体の製造方法
は、次のように構成してなるものである。[Means for Solving the Problems] The method for producing a carrier of the present invention for achieving this object is constituted as follows.
すなわち、平板と波板を渦巻状に巻き込みこれを外筒
内に挿入して形成されるコルゲート型触媒コンバータ用
担体の製造方法において、平板と波板を未接合のまま渦
巻き状に巻き込んだ挿入体を外筒に挿入し、しかる後に
円筒状担体の中心部まで貫通するパワーを有する高密度
エネルギービームを外筒の外周から円周状もしくはスパ
イラル状に照射し、未接合のままであった平板と波板か
らなる層状部の接合を行うと共に、外筒と層状部の接合
を同時に行うことを特徴とする触媒コンバータ用担体の
製造方法である。That is, in a method for manufacturing a corrugated catalytic converter carrier formed by spirally winding a flat plate and a corrugated sheet and inserting the flat plate and the corrugated sheet into an outer cylinder, an insert body in which the flat plate and the corrugated sheet are spirally wound without being joined. Is inserted into the outer cylinder, and then a high-density energy beam having power penetrating to the center of the cylindrical carrier is irradiated in a circumferential or spiral shape from the outer periphery of the outer cylinder, and the flat plate that has not been joined A method for manufacturing a carrier for a catalytic converter, comprising joining a layered portion made of a corrugated plate and simultaneously joining an outer cylinder and a layered portion.
また、本発明は、上記の方法において、平板と波板か
らなる層状部を該高密度エネルギービームにより切断す
ると同時に、切断部両端部において平板と波板を接合す
ることを特徴とする触媒コンバータ用担体の製造方法を
第２の発明としている。Also, the present invention provides the catalytic converter according to the above method, wherein the layered portion composed of the flat plate and the corrugated sheet is cut by the high-density energy beam, and the flat plate and the corrugated sheet are joined at both ends of the cut portion. A method for producing a carrier is defined as a second invention.
本発明ではこのように高密度のエネルギービームを用
いているので、高速・高能率で必要個所の接合が果せる
とともに、必要に応じてこのビームにより平板と波板か
らなる層状部を切断し、短いコンバータを軸方向に並べ
た構造とすることができ、良好な入口効果を発揮し、触
媒効率の向上が可能となる。この層状部の切断を行うた
めには、高密度エネルギービームのパワーを、その照射
部の溶融幅が層状部を構成する箔材料の厚みの４倍異常
となるように、調整することが好ましい。In the present invention, since a high-density energy beam is used as described above, necessary portions can be joined at high speed and high efficiency, and if necessary, a layered portion composed of a flat plate and a corrugated plate can be cut by this beam to shorten the length. The converters can be configured to be arranged in the axial direction, exhibiting a favorable inlet effect, and improving the catalyst efficiency. In order to cut the layer portion, it is preferable to adjust the power of the high-density energy beam so that the irradiation width of the irradiated portion becomes abnormal four times the thickness of the foil material forming the layer portion.
なお、以上の接合は、必ずしも連続である必要はな
く、断続で行っても良い。また、本発明における高密度
エネルギービームとは、一般的に用いられる電子ビーム
或はレーザを言う。It should be noted that the above bonding is not necessarily required to be continuous, but may be performed intermittently. The high-density energy beam in the present invention refers to a commonly used electron beam or laser.
［発明の好適な実施態様］ 以下本発明を図面に基いて詳細に説明する。第１図は
本発明の担体の製造方法の概要を示し、第２図はその部
分拡大詳細図である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows an outline of a method for producing a carrier of the present invention, and FIG. 2 is a partially enlarged detailed view thereof.
ステンレス鋼の如き箔材料から成る平板１及び波板２
は、交互に重ね合せた状態で渦巻状に巻き込まれ、所定
の径の層状の箔３が形成される。この場合平板１と波板
２は接合せずに高速・高能率で巻き込むことが望まし
い。該層状の箔３（以下層状部という）は外筒４内に挿
入され未接合の担体となるが、次いで担体中心部まで貫
通するパワーを有する高密度エネルギービーム５を外周
からスパイラル状に照射する。この高密度エネルギービ
ーム５の照射により、外筒４と層状部３の接合と同時
に、層状部３の平板１と波板２の接合も可能となる。Flat plate 1 and corrugated plate 2 made of foil material such as stainless steel
Are wound spirally in a state of being alternately superimposed to form a layered foil 3 having a predetermined diameter. In this case, it is desirable that the flat plate 1 and the corrugated plate 2 are wound at high speed and high efficiency without joining. The layered foil 3 (hereinafter, referred to as a layered portion) is inserted into the outer cylinder 4 and becomes an unbonded carrier. Then, a high-density energy beam 5 having a power penetrating to the center of the carrier is irradiated in a spiral form from the outer periphery. . By the irradiation of the high-density energy beam 5, the flat plate 1 and the corrugated plate 2 of the layered portion 3 can be bonded simultaneously with the bonding of the outer cylinder 4 and the layered portion 3.
実際に上記高密度エネルギービーム５を担体にスパイ
ラル状に照射する場合には、未接合担体を一定速度で軸
まわりに回転させると同時に軸方向に移動させる設備に
搭載し、固定位置でビームを照射すればよい。高密度エ
ネルギービーム５の照射は、スパイラル状に限らず、円
周状に一定間隔で照射しても良く、この場合は担体を一
回転毎に軸方向に間欠的に移動させれば良い。When the carrier is actually irradiated with the high-density energy beam 5 in a spiral manner, the unbonded carrier is mounted on a facility for rotating the unbonded carrier around the axis at a constant speed and simultaneously moving in the axial direction, and irradiating the beam at a fixed position. do it. The irradiation of the high-density energy beam 5 is not limited to the spiral shape, and may be performed at a constant interval circumferentially. In this case, the carrier may be intermittently moved in the axial direction every one rotation.
本発明では高密度エネルギービーム５の照射条件を任
意に変えて、層状部３の溶融状態を変化させることがで
きる。すなわち、本発明においては、少なくとも外筒４
と層状部３の接合と、層状部３の接合が果されていれば
足りるが、さらに高密度エネルギービーム５の照射条件
を高めて層状部３の溶融幅を大きくすることによって、
層状部３における高密度エネルギービーム５の照射部を
完全に切断状態にすることも可能である。In the present invention, the irradiation condition of the high-density energy beam 5 can be changed arbitrarily to change the melting state of the layered portion 3. That is, in the present invention, at least the outer cylinder 4
It is sufficient that the bonding of the layered portion 3 and the bonding of the layered portion 3 have been achieved. However, by increasing the irradiation conditions of the high-density energy beam 5 and increasing the melting width of the layered portion 3,
It is also possible to completely cut the irradiated portion of the layered portion 3 with the high-density energy beam 5.
層状部３の溶融幅が小さい場合には、その溶融部分は
切断に至らずに凝固して隣接する部材相互を接合するだ
けであるが、高密度エネルギービーム５の照射条件を、
例えば層状部を構成する箔の厚みの４倍以上の溶融部の
幅が得られるように選択することによって、層状部３を
切断しながら、しかも切断部両端部において各層構成箔
の接触部を溶融接合することが可能である。第２図
（ｂ）に切断部の状況を、第３図に切断部端面の接合状
況を夫々示している。一旦溶融した層状部の照射部分
は、その溶融幅が大きいと凝固に際し、溶融金属が両端
部側へ引っ張られて分離し切断部７を生成すると共に、
平板１と波板２の接触部に凝集してたまり、これが接合
部６を形成し、丁度平板と波板をろう付けしたと同様な
状態となる。When the melting width of the layered portion 3 is small, the melted portion solidifies without cutting and only joins the adjacent members.
For example, by selecting so as to obtain a width of the fused portion four times or more the thickness of the foil constituting the layer portion, the contact portion of each layer constituting foil is melted at both ends of the cut portion while cutting the layer portion 3. It is possible to join. FIG. 2 (b) shows the condition of the cut portion, and FIG. 3 shows the joining condition of the end face of the cut portion. Once the irradiated portion of the layered portion is melted, if the melting width is large, upon solidification, the molten metal is pulled to both ends and separated to generate a cut portion 7,
Agglomerates and accumulates at the contact portion between the flat plate 1 and the corrugated plate 2, which forms the joint 6, and is in the same state as when the flat plate and the corrugated plate are just brazed.
高密度エネルギービーム５の照射条件を変え溶融幅を
大きくする場合には、電子ビームでは例えばビーム電流
値を大きくしてビーム焦点距離を長くするか、或はレー
ザではレーザ出力を上げ焦点距離を長くするなどの操作
を採用すればよい。When the irradiation condition of the high-density energy beam 5 is changed to increase the melting width, for example, the beam focal length is increased by increasing the beam current value for the electron beam, or the laser output is increased and the focal length is increased for the laser. An operation such as performing an operation may be employed.
このように担体をスパイラル状或は円周状に切断する
ことにより、担体は軸方向に一定長さの短いコンバータ
を並べたと同様の構造となるため、所望の入口効果を付
与することとなり、実際の使用に当たり触媒効率の飛躍
的な向上が期待できる。By cutting the carrier spirally or circumferentially in this way, the carrier has the same structure as a short converter with a fixed length arranged in the axial direction. A dramatic improvement in catalyst efficiency can be expected when using.
なお、高密度エネルギービーム５の照射により外筒４
も溶融するが、外筒は層状部３に比し板厚が厚いので、
切断することなく凝固する。The outer cylinder 4 is irradiated with the high-density energy beam 5.
However, since the outer cylinder is thicker than the layered portion 3,
Solidifies without cutting.
［発明の効果］ 以上説明した本発明の製造方法によれば、従来のろう
付けや溶接による担体の製造に比較して、格段に効率的
であり、しかも触媒効率も高めることができる。また、
本発明により得た担体自体の接合強度についても全く従
来のものと遜色がなかった。[Effects of the Invention] According to the production method of the present invention described above, the efficiency of the catalyst can be significantly increased and the catalyst efficiency can be increased as compared with the conventional production of a carrier by brazing or welding. Also,
The bonding strength of the carrier itself obtained according to the present invention was not at all inferior to the conventional one.
［実施例］ ・実施例１（生産効率の比較） 使用材料およびメタル担体形状 層状部の箔、外筒：フェライト系ステンレス鋼 （ｃ＜0.01％ Cr:15％ Al:4.5％ 残部Fe） 50μｍ厚、130mm幅の平板、波板の二枚を26層に巻
き、厚さ1.5mm外径78mmの外筒内に納める。[Examples]-Example 1 (Comparison of production efficiency) Materials used and shape of metal carrier Foil of layered portion, outer cylinder: ferritic stainless steel (c <0.01% Cr: 15% Al: 4.5% balance Fe) 50 μm thick A 130mm wide flat plate and a corrugated plate are wound into 26 layers and placed in an outer cylinder with a thickness of 1.5mm and an outer diameter of 78mm.
接合方法および接合条件 ろう付け 1115℃15分（加熱時間３時間、冷却時間２時間）、（１
バッチ300個の処理が可能な真空ろう付け炉使用） 平板、波板を巻き込み時にレーザ照射する箔同士の接
合（特開昭54−13462） レーザ（Nb−YAGレーザ）パワー:120W 溶接速度:2m/
分、焦点位置：試料表面、シールドガス：アルゴン、 箔幅130mm間に５ラインを設置 電子ビーム溶接（箔、外筒を同時溶接）（本発明） 加熱電圧:150KVビーム電流:30mA 回転速度:17rpm（周
速度4m/min 5回転溶接する）、焦点位置：外筒面から内
部へ5mm 接合効率 ろう付け：約１個／分 （１）真空炉の大型化により１バッチでの処理数は増え
るが、排気時間、加熱時間が長くなり、効率化に限界あ
り。Joining method and joining conditions Brazing 1115 ° C 15 minutes (heating time 3 hours, cooling time 2 hours), (1
Use of a vacuum brazing furnace capable of processing 300 batches) Joining foils irradiated with laser when rolling flat or corrugated sheet (Japanese Patent Laid-Open No. 54-13462) Laser (Nb-YAG laser) Power: 120 W Welding speed: 2 m /
Minutes, focus position: sample surface, shielding gas: argon, 5 lines installed between foil widths 130 mm Electron beam welding (simultaneous welding of foil and outer cylinder) (invention) Heating voltage: 150 KV Beam current: 30 mA Rotation speed: 17 rpm (Circumferential speed 4m / min 5 turns welding), Focus position: 5mm from the outer cylinder surface to the inside Joining efficiency Brazing: Approximately 1 piece / min (1) Larger vacuum furnace will increase the number of processing in one batch , Evacuation time and heating time are longer, and efficiency is limited.
（２）試料挿入等の操作の自動化が困難で要員が多く必
要。(2) It is difficult to automate operations such as sample insertion and many personnel are required.
特開昭54−13462の方法：約0.6個／分（接合長さ3.3
m） （１）溶接速度は欠陥の発生で律速される。箔の巻き込
み時に接合するため、箔の巻き込みも接合速度で律速さ
れる。JP-A-54-13462: about 0.6 pieces / min (joining length 3.3
m) (1) The welding speed is limited by the occurrence of defects. Since the joining is performed when the foil is wound, the winding of the foil is also limited by the joining speed.
（２）外筒との接合は別ラインが必要。(2) Separate line is required for joining with outer cylinder.
（３）複数のラインが必要。(3) Multiple lines are required.
本発明：約３個／分（接合長さ1.2m） （１）連続真空ラインの採用で排気時間は無視できる。The present invention: about 3 pieces / min (joining length: 1.2 m) (1) Evacuation time can be ignored by adopting a continuous vacuum line.
（２）自動化が容易。(2) Easy automation.
接合部の強度 上記の本発明方法によって製作されたメタル担体を30
00ccのエンジン排気系に取付け、入側ガス温度850℃の
条件で300時間の耐久試験を行ったが、異常は認められ
ず、充分な強度を有することがわかった。The strength of the joints
It was attached to a 00 cc engine exhaust system and subjected to a 300-hour endurance test at an inlet gas temperature of 850 ° C. No abnormality was found, and it was found that it had sufficient strength.
・実施例２（レーザを用いた施工例） 使用材料 実施例１と同じ レーザ照射条件（炭酸ガスレーザ） レーザ出力:65KW 回転速度:17rpm（周速度4m/min）、
焦点位置：外筒表面から内部へ5mm 以上の条件で実施例１の電子ビーム溶接と同等のメタ
ル担体の箔、外筒の同時接合が可能。-Example 2 (Example using a laser) Materials used Same as Example 1 Laser irradiation conditions (carbon dioxide laser) Laser output: 65 KW Rotation speed: 17 rpm (peripheral speed 4 m / min),
Focus position: 5 mm or more from the surface of the outer cylinder to the inside. Simultaneous joining of the metal carrier foil and outer cylinder is possible, equivalent to the electron beam welding of Example 1.
・実施例３（切断部両端面での接合例） 使用材料およびメタル担体形状 実施例１と同様 接合条件 No.2,No.3では箔厚（50μｍ）に比較して溶融幅が広
いことから、溶融された箔は、溶融部左右に凝集した切
断状況になるが、切断部端面で溶融された金属が、あた
かもろう材のように働き箔同士が接合される。また、外
筒は板厚が箔に比較してはるかに厚いため、通常の接合
状況になる。-Example 3 (Example of joining at both end surfaces of cut section) Materials used and metal carrier shape Same as in Example 1 Joining conditions In No.2 and No.3, the melting width is wider than the foil thickness (50μm). However, the foils work as if they were brazing materials. In addition, since the outer cylinder has a much larger thickness than the foil, a normal joining state is obtained.
接合強度 実施例１と同様の耐久試験を実施したが、No.2,No.3
とも何ら異常は認められず、非切断状況のNo.1（実施例
１と同条件）と同等の強度を有する。Bonding strength The same durability test as in Example 1 was performed, but No. 2 and No. 3
No abnormalities were observed, and the strength was equivalent to that of No. 1 in the non-cutting state (the same conditions as in Example 1).
触媒効率 上記No.1〜No.3のメタル担体と、比較例としてろう付
けによるメタル担体に、厚さ50μｍの均一なセラミック
ス層を設けた後、1.8g/触媒コンバータ体積（ｌ）の貴
金属（Pt,Ph）を均一に付着させた触媒コンバータを製
作した。これを3000ccのエンジン排気系を用いて2000RP
M,−300mmHgの条件で排気ガス浄化特性を、また6000RP
M,WOTで圧力損失を測定した。Catalyst Efficiency After providing a uniform ceramic layer with a thickness of 50 μm on the metal carrier of No. 1 to No. 3 and a metal carrier by brazing as a comparative example, the noble metal (1.8 g / catalytic converter volume (l)) (Pt, Ph) was made to adhere uniformly. 2000RP using this 3000cc engine exhaust system
M, -300mmHg conditions for exhaust gas purification characteristics and 6000RP
Pressure loss was measured by M and WOT.
上記実験結果をみても、本発明により得た触媒コンバ
ータ用担体がろう付けにより製作したものに比し、少な
くとも同等か若しくはそれ以上の性能を有していること
が判る。 From the above experimental results, it can be seen that the catalytic converter carrier obtained according to the present invention has at least the same or higher performance than that manufactured by brazing.
第１図は本発明の製造方法の概略を説明するための図、
第２図（ａ）（ｂ）は本発明による担体の接合状況を示
す拡大説明図、第３図は本発明によって得たメタル担体
の切断部端面の接合状況を示す部分説明図である。 １……平板、２……波板、３……層状部、４……外筒、
５……高密度エネルギービーム、６……接合部、７……
切断部FIG. 1 is a diagram for explaining the outline of the production method of the present invention,
FIGS. 2 (a) and 2 (b) are enlarged explanatory views showing the joining state of the carrier according to the present invention, and FIG. 3 is a partial explanatory view showing the joining state of the cut end face of the metal carrier obtained by the present invention. 1 ... flat plate, 2 ... corrugated plate, 3 ... layered portion, 4 ... outer cylinder,
5 ... high-density energy beam, 6 ... joint, 7 ...
Cutting part
Claims (2)
筒内に挿入して形成されるコルゲート型触媒コンバータ
用担体の製造方法において、平板と波板を未接合のまま
渦巻き状に巻き込んだ挿入体を外筒に挿入し、しかる後
に円筒状担体の中心部まで貫通するパワーを有する高密
度エネルギービームを外筒の外周から円周状もしくはス
パイラル状に照射し、未接合のままであった平板と波板
からなる層状部の接合を行うと共に、外筒と層状部の接
合を同時に行うことを特徴とする方法。In a method for manufacturing a corrugated catalytic converter carrier formed by spirally winding a flat plate and a corrugated sheet and inserting the same into an outer cylinder, the flat plate and the corrugated sheet are spirally wound without being joined. The insert is inserted into the outer cylinder, and then a high-density energy beam having power penetrating to the center of the cylindrical carrier is radiated from the outer periphery of the outer cylinder in a circumferential or spiral shape, and the unbonded body is left. A method of joining a layered portion composed of a flat plate and a corrugated plate, and simultaneously joining an outer cylinder and a layered portion.
筒内に挿入して形成されるコルゲート型触媒コンバータ
用担体の製造方法において、平板と波板を未接合のまま
渦巻き状に巻き込んだ挿入体を外筒に挿入し、しかる後
に円筒状担体の中心部まで貫通するパワーを有する高密
度エネルギービームを外筒の外周から円周状もしくはス
パイラル状に照射し、未接合のままであった平板と波板
からなる層状部を該高密度エネルギービームにより切断
すると同時に、切断部両端部において平板と波板を接合
すると共に、外筒と層状部の接合をも同時に行うことを
特徴とする方法。2. A method for manufacturing a carrier for a corrugated catalytic converter formed by spirally winding a flat plate and a corrugated sheet and inserting the flat plate and a corrugated sheet into an outer cylinder. The insert is inserted into the outer cylinder, and then a high-density energy beam having power penetrating to the center of the cylindrical carrier is radiated from the outer periphery of the outer cylinder in a circumferential or spiral shape, and the unbonded body is left. Cutting the layered portion consisting of the flat plate and the corrugated plate by the high-density energy beam, and joining the flat plate and the corrugated plate at both ends of the cut portion, and simultaneously joining the outer cylinder and the layered portion. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058240A JP2598071B2 (en) | 1988-03-14 | 1988-03-14 | Method for producing carrier for catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63058240A JP2598071B2 (en) | 1988-03-14 | 1988-03-14 | Method for producing carrier for catalytic converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01231947A JPH01231947A (en) | 1989-09-18 |
| JP2598071B2 true JP2598071B2 (en) | 1997-04-09 |
Family
ID=13078581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63058240A Expired - Lifetime JP2598071B2 (en) | 1988-03-14 | 1988-03-14 | Method for producing carrier for catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598071B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1102706A (en) * | 1977-05-06 | 1981-06-09 | Rainer Scholz | Monolithic metal catalyst for the detoxication of the exhaust gases of internal combustion engines |
-
1988
- 1988-03-14 JP JP63058240A patent/JP2598071B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01231947A (en) | 1989-09-18 |
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