JPH03178337A - Preparation of honeycomb body for catalytic converter - Google Patents
Preparation of honeycomb body for catalytic converterInfo
- Publication number
- JPH03178337A JPH03178337A JP1315180A JP31518089A JPH03178337A JP H03178337 A JPH03178337 A JP H03178337A JP 1315180 A JP1315180 A JP 1315180A JP 31518089 A JP31518089 A JP 31518089A JP H03178337 A JPH03178337 A JP H03178337A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- corrugated
- strip
- strip material
- catalytic converter
- 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.)
- Pending
Links
- 230000003197 catalytic effect Effects 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims abstract description 73
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims 2
- 238000004049 embossing Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000009790 rate-determining step (RDS) 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
-
- 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
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/32—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils
-
- 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
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的ｊ
（産業上の利用分野）
本発明は、金属製（メタル製）の触媒コンバータの主要
な構成要素である各種の触媒を担持するためのメタル製
ハニカム体の製造技術に関する。より具体的には、自動
車の排気ガスの浄化手段として排気管の途中に介装され
て使用される触媒コンバータ用のハニカム体の製造技術
に関して、特に厳しい使用温度の条件のもとでも熱膨張
や熱応力による変形や破損に対して優れた耐久性を有す
るハニカム体の経済性、効率性に富んだ製造技術に関す
るものである。[Detailed Description of the Invention] [Objective of the Invention j (Industrial Application Field) The present invention relates to a metal honeycomb for supporting various catalysts, which are the main components of a metal catalytic converter. Regarding body manufacturing technology. More specifically, regarding the manufacturing technology of honeycomb bodies for catalytic converters, which are used as a means of purifying automobile exhaust gas by being inserted in the middle of the exhaust pipe, we are concerned with the manufacturing technology of honeycomb bodies that are used to prevent thermal expansion even under particularly severe operating temperature conditions. The present invention relates to an economical and efficient manufacturing technology for honeycomb bodies that have excellent durability against deformation and breakage due to thermal stress.
（従来の技術）
この種の金属製の触媒コンバータはセラミック製のもの
と比較して製造の容易性、耐久性などの特性に優れてい
ることからさかんに研究されている。以下、典型的な応
用分野である排気ガスの浄化用触媒コンバータを例にし
て説明する。(Prior Art) This type of metal catalytic converter is being actively researched because it is easier to manufacture and has superior characteristics such as durability compared to ceramic ones. The following describes a typical application field, a catalytic converter for exhaust gas purification, as an example.
般に、排気ガス浄化用触媒コンバータは、耐熱性の薄肉
鋼板からの平板状帯材と前記薄肉鋼板を波形成形した波
板状帯材とを、相互に当接部を有するように重積し、こ
れを−枯渇巻状に巻回積層するか、あるいは階層状に重
積して製作した軸方向に排気ガス通路のための多数の網
目状通気孔路を有するハニカム状積層体（以下、ハニカ
ム体という。）と、前記ハニカム体を填装し固着するた
めの両端が開口した筒状の金属ケースから構成されてい
る。In general, a catalytic converter for exhaust gas purification consists of a flat strip made of heat-resistant thin steel plates and a corrugated strip made of the thin steel plates stacked one on top of the other so that they have abutting portions with each other. A honeycomb-like laminate (hereinafter referred to as "honeycomb") having a large number of mesh-like ventilation holes for exhaust gas passages in the axial direction is produced by winding and stacking this in a depleted winding form or stacking it in a layered manner. It consists of a cylindrical metal case with open ends for loading and fixing the honeycomb body.
また、最近においては、従来のコーディエライト系セラ
ミック担体との価格競争面からハニカム体を填装し強固
に固着するための金属ケースを特別に使用しないもの、
即ち金属製ハニカム体のみで排気ガス浄化用触媒コンバ
ータを構成しようとする動きがある。この場合、金属ケ
スを使用しないことから、金属ケースの製作コスト、金
属ケースと金属製ハニカム体の填装、固着コスト、いわ
ゆるキャンニングコストなどが削減され、大幅なコスト
メリットが生じるのはいうまでもないことである。In addition, recently, due to price competition with conventional cordierite ceramic carriers, we have developed carriers that do not use a special metal case for loading and firmly fixing honeycomb bodies.
That is, there is a movement toward constructing an exhaust gas purifying catalytic converter using only a metal honeycomb body. In this case, since no metal case is used, the manufacturing cost of the metal case, the cost of loading and fixing the metal case and the metal honeycomb body, the so-called canning cost, etc. are reduced, and it goes without saying that there is a significant cost advantage. There is no such thing.
そして、この種のメタル製排気ガス浄化用触媒コンバー
タにおいて前記ハニカム体と金属ケース、及びハニカム
体を構成する平板状帯材と波板状帯材とは、排気ガス自
体の高温度及び排気ガスとハニカム体の壁面に担持され
た浄化用触媒（ｐｔ、 ｐｄ、 Ｒｈなど）との発熱反
応などによる熱膨張や熱的応力に耐えるように、また自
動車走行時の振動などに耐え得るように溶接やろう接、
あるいは機械的な係合手段などにより固着される。In this type of metal catalytic converter for exhaust gas purification, the honeycomb body and the metal case, as well as the flat strip material and the corrugated strip material constituting the honeycomb body, are sensitive to the high temperature of the exhaust gas itself and the exhaust gas. The honeycomb body is welded and made to withstand thermal expansion and thermal stress caused by exothermic reactions with purification catalysts (PT, PD, Rh, etc.) supported on the walls of the honeycomb body, as well as to withstand vibrations during driving. brazing,
Alternatively, it is fixed by mechanical engagement means or the like.
例えば、溶接やろう接などの接合手段の欠点（非生産性
、コスト増など）を回避しようとして提案されている機
械的な係合手段としては、次のようなものがある。For example, the following mechanical engagement means have been proposed in an attempt to avoid the drawbacks (low productivity, increased cost, etc.) of joining means such as welding and brazing.
・一方の帯材（平板または波板）に所定の幅にわたり隆
起部（または突出部）を、他方の帯材に凹部（または穴
部）を設けて両者の嵌合により両帯材の軸方向への移動
を防止しようとするもの（特公昭６０−２７８０７号公
報）、・ハニカム体の外側からハニカム体の中心に向け
てバーリングパンチを挿入して王″ｒ通孔を穿設し、そ
の際に形成されるバーリングの嵌合により平板状帯材と
波板状帯材を固定しようとするもの（特開昭６３−１０
７７５０号公報）、・平板状帯材に所望の数の爪を穿設
し、一方波板状帯材に孔を形成し、該爪と孔を嵌合して
両帯材を係止しようとするもの（実開昭６４４４０３０
号公報）、
などがある。・Providing a raised part (or protrusion) over a predetermined width on one strip material (flat plate or corrugated plate) and a recessed part (or hole) on the other strip material, and by fitting them together, the axial direction of both strip materials (Japanese Patent Publication No. 60-27807), a burring punch is inserted from the outside of the honeycomb body toward the center of the honeycomb body to punch a hole through the honeycomb body, and at that time A device that attempts to fix a flat strip material and a corrugated strip material by fitting burrings formed in
7750 Publication), - A desired number of claws are bored in the flat strip material, holes are formed in the corrugated strip material, and the claws and the holes are fitted to lock the two strip materials. Things to do (Jitsukai Sho 6444030
Publication No.), etc.
しかしながら、これらのハニカム体を構成する平板状帯
材と波板状帯材との係合手段は、係合部の形成法や係合
作業が煩雑であったり非生産的であったりして改良の余
地を残すものである。However, the means for engaging the flat strips and corrugated strips that make up these honeycomb bodies has not been improved because the method for forming the engagement portion and the engagement work are complicated and unproductive. This leaves room for
（発明が解決しようとする課題）
メタル製排気ガス浄化用触媒コンバータの主要な構成要
素であるハニカム体は、排気ガス自体のハニカム体の軸
方向（排気ガスの流入・流出方向、通過方向）へ大きく
変位しようとする。特に、ハニカム体の軸心部は排気ガ
スの温辿が外周部より速いため触媒層との接触反応が進
行して嵩高になり、中心部が外方へ突出する（スコービ
ングまたフィルムアウトともいわれる。）ようになる。(Problem to be Solved by the Invention) The honeycomb body, which is a main component of a metal catalytic converter for exhaust gas purification, has a structure in which the exhaust gas itself moves in the axial direction of the honeycomb body (the inflow/outflow direction and the passing direction of the exhaust gas). Attempt to make a large displacement. In particular, the temperature of the exhaust gas at the axial center of the honeycomb body is faster than at the outer periphery, so the contact reaction with the catalyst layer progresses and the honeycomb body becomes bulky, causing the center to protrude outward (also called scoving or film-out). ) becomes like this.
前記したようにしてハニカム体においては、ハニカム体
を構成する平板状帯材と波板状帯材は相互に変位して層
間剥離を起こすが、−旦剥離が生じるとエンジンや路面
からの振動も加わり、剥離傾向は助長される。また剥離
の生起とともに、ハニカム体の強度低下はもとよりハニ
カム体を構成する平板または波板状帯材のヒビ割れ、亀
裂、破損が生じ、長期に亘り排気ガス浄化用触媒コンバ
ータとしての性能を発揮することができなくなる。As mentioned above, in a honeycomb body, the flat strips and corrugated strips that make up the honeycomb body are mutually displaced, causing delamination, but once this delamination occurs, vibrations from the engine and road surface also occur. In addition, the tendency to peel off is promoted. In addition, as peeling occurs, not only does the strength of the honeycomb body decrease, but also cracks, cracks, and damage occur in the flat plate or corrugated strip material that makes up the honeycomb body, and the performance as a catalytic converter for purifying exhaust gas is maintained over a long period of time. I won't be able to do that.
本発明は、効率的なハニカム体の製造技術との関連で、
その製造プロセスの中で平板状帯材と波板状帯材の係合
手段がどうあるべきかを検討することにより案出された
ものである。The present invention relates to efficient honeycomb body manufacturing technology, and includes the following:
This was devised by considering the means for engaging the flat strip material and the corrugated strip material during the manufacturing process.
本発明は、巻回タイプのハニカム体の連続的な製造シス
テムにおいて経済的かつ生産的な係合手段を採用し、長
期に亘り十分な排気ガス浄化能を発揮することができる
触媒コンバータ用ハニカム体の製造技術を提供すること
を目的とする。The present invention employs an economical and productive engagement means in a continuous manufacturing system for a wound type honeycomb body, and provides a honeycomb body for a catalytic converter that can exhibit sufficient exhaust gas purification performance over a long period of time. The purpose is to provide manufacturing technology.
（課題を解決するための手段）
本発明を概説すれば、本発明は、薄肉金属板の平板状帯
材と波板状帯材を巻回積層して触媒コンバータ用のハニ
カム体を製造する方法において、
ｆｉｌ前記平板状帯材と波板状帯材を相互に当接するよ
うに重積すること。(Means for Solving the Problems) To summarize the present invention, the present invention provides a method for manufacturing a honeycomb body for a catalytic converter by winding and laminating thin metal plate flat strips and corrugated strips. In this step, the flat strip material and the corrugated strip material are stacked one on top of the other so as to be in contact with each other.
ｆｉｉ１両帯材が当接する波板状帯材の波形の頂部領域
において両帯材を同時に凹凸加工することにより凹凸係
合手段を形成して両帯材を係合させること、
ｆｉｉｉ１次いで係合固定された両帯材を巻回積層して
巻回タイプのハニカム体とすること、の工程からなるこ
とを特徴とする触媒コンバータ用ハニカム体の製造方法
に関するものである。fii1 Forming a concave-convex engagement means by simultaneously machining both the strips at the top region of the waveform of the corrugated strip material where the two strips come into contact with each other to engage the two strips, fiii1 Then engaging and fixing. The present invention relates to a method for manufacturing a honeycomb body for a catalytic converter, characterized by comprising the steps of: winding and laminating both of the strips thus obtained to form a wound type honeycomb body.
（実施例）
以下、本発明の構成ならびに実施例を図面を参照して詳
しく説明する。なお、本発明は図示のものに限定されな
いことはいうまでもないことである。(Examples) Hereinafter, the configuration and examples of the present invention will be described in detail with reference to the drawings. It goes without saying that the present invention is not limited to what is shown in the drawings.
前記したように、本発明の触媒コンバータ用ハニカム体
の製造方法における最大の技術的特徴は、巻回タイプの
ハニカム体の製造工程、特に連続的な巻回タイプのハニ
カム体の製造工程において、ハニカム体を構成する平板
状帯材と波板状帯材の係合を合理的に組込んだという点
にある。そのために、本発明においては該両帯材の係合
を、
（イ）平板状帯材と波板状帯材を、両帯材が相互に当接
する波板状帯材の波形の頂部領域においてのみ係合する
こと、
（０該係合手段が、平板状帯材側に形成された凸部と波
板状帯材側に形成された凹部の凹凸係合によること、
という技術的構成を採用する。As mentioned above, the greatest technical feature of the method for manufacturing a honeycomb body for a catalytic converter of the present invention is that in the manufacturing process of a wound type honeycomb body, particularly in the manufacturing process of a continuously wound type honeycomb body, The point is that the engagement between the flat strip material and the corrugated strip material constituting the body is rationally incorporated. For this purpose, in the present invention, the engagement between the two strips is as follows: (a) The flat strip and the corrugated strip are brought into contact with each other at the top region of the corrugation of the corrugated strip where the two strips abut each other. A technical configuration is adopted in which the engaging means is based on a concave-convex engagement between a convex portion formed on the flat strip material side and a recessed portion formed on the corrugated strip material side. do.
第１図は、本発明の前記した係合手段を組込んでなる巻
回タイプのハニカム体の製造工程を示すものである。FIG. 1 shows the manufacturing process of a wound type honeycomb body incorporating the above-described engaging means of the present invention.
第１図に示されるように、巻回タイプのハニカム体＋１
１は１次のようにして製造される。As shown in Figure 1, a wound type honeycomb body +1
1 is manufactured in the first order manner.
（１）平板状帯材（Ｉｌｌと波付ローラ（Ａ＋により波
付された波板状帯材（Ｉ２）は、カシメローラｆＢ）に
供給される直前に、両帯材は相互に当接するように重積
される。(1) Immediately before the flat strip material (Ill) and the corrugated strip material (I2) corrugated by the corrugated roller (A+) are supplied to the crimping roller fB, both strip materials are brought into contact with each other. It is piled up.
（ｉｉ）次いで、波板状帯材（１２）の波の頂部で相互
に当接する両帯材ｉｌｌ、１２１の重積物はカシメロー
ラｆＢｌ に供給され、当接部である波板状帯材（１２
）の波形の１頁部領域においてカシメ（エンボス）加工
により凹凸係合手段が形成されるとともに両帯材は係合
固定される。この工程において、平板状帯材（Ｉｌｌ側
に凸部が、波板状帯材（１２）に凹部が形成され、両帯
材の凹凸係合手段で両帯材は係合固定される。(ii) Next, the stack of both strips ill and 121 that abut each other at the wave crests of the corrugated strips (12) is supplied to the crimping roller fBl, and the corrugated strips ( 12
) In the first page area of the waveform, a concave-convex engaging means is formed by caulking (embossing), and both strips are engaged and fixed. In this step, a convex portion is formed on the flat strip material (Ill side) and a concave portion is formed on the corrugated strip material (12), and both strip materials are engaged and fixed by the concave-convex engagement means of both strip materials.
（ｉｉｉ）そして、係合固定された両帯材［１，＋２は
一括して巻回積層され、巻回タイプのハニカム体（１）
（凹凸係合手段は図示せず）が製造される。なお、両帯
材ｆｉ１．１２）の巻回積層により排気ガスの通路とな
る多数の網目状通気孔路（１３）は自動的に形成される
。(iii) Then, both the engaged and fixed band members [1 and +2 are rolled and laminated together to form a wound type honeycomb body (1).
(The concave-convex engaging means is not shown) is manufactured. Note that, by winding and laminating both strips fi1.12), a large number of mesh-like vent passages (13), which serve as passages for exhaust gas, are automatically formed.
次に、特に凹凸係合手段の構成について説明する。Next, the configuration of the concave-convex engaging means will be explained in particular.
第２図は、前記製造工程により製造された第の実施態様
に基づくハニカム体（１）を構成する平板状帯材（１１
）と波板状帯材（１２）の係合状態を示す図である。第
２図に示されるように、本発明においては、両帯材［１
，１２＋は相互に当接する波板状帯材（１２）の波形の
頂部領域においてのみ係合される。FIG. 2 shows a flat strip material (11
) and a corrugated band material (12) in an engaged state. As shown in FIG. 2, in the present invention, both strips [1
, 12+ are engaged only in the top regions of the corrugations of the corrugated strips (12) which abut one another.
第３図は、第２図のＩ−Ｉ線断面図であり、第４図は、
第２図の■−■線断面図である。第３図〜第４図に示さ
れるように、本発明において平板状帯材（１１）と波板
状帯材（１２）とは、両帯材ｆ１１．１２）が相互に当
接する波板状帯材（１２）の波形の頂部領域において、
平板状帯材＋ｔｉ＋側に形成された凸部（ａ）と波板状
帯材（１２）側に形成された凹部（ｂ）の係合関係によ
り係合される。FIG. 3 is a sectional view taken along line I-I in FIG. 2, and FIG.
It is a sectional view taken along the line ■-■ in FIG. 2. As shown in FIGS. 3 and 4, in the present invention, the flat strip (11) and the corrugated strip (12) are corrugated strips in which both strips (f11, 12) are in contact with each other. In the top region of the corrugation of the strip (12),
The protrusions (a) formed on the +ti+ side of the flat strip material and the recesses (b) formed on the corrugated strip material (12) side engage with each other.
本発明において、両帯材（１１，１２１の係合手段であ
る波板状帯材（１２）の頂部領域において形成される凹
凸（ａ、 ｂｌ係合手段は所望の態様により形成させれ
ばよい。In the present invention, the unevenness (a, bl engagement means) formed in the top region of the corrugated strip material (12) which is the engagement means of both strip materials (11, 121) may be formed in a desired manner. .
例えば、個々の凹凸（ａ、ｂｌの深さ、幅は所望のもの
でよい。また、両帯材（１１，１２１が当接する一箇所
の当接部をみたとき、これら帯材の幅方向（ハニカム体
としたときの軸方向）における凹凸係合手段の形成個数
も所望のものでよい。更に、両帯材が当接する全ての部
位に凹凸係合手段を形成してもよいし、所定の間隔をお
いて形成してもよい。For example, the depth and width of the individual unevenness (a, bl) may be as desired.Also, when looking at the abutting part where both the strips (11, 121 contact), the width direction of these strips ( The number of uneven engaging means to be formed in the axial direction when a honeycomb body is formed may be any desired number.Furthermore, uneven engaging means may be formed at all parts where both the strips come into contact, or a predetermined They may be formed at intervals.
なお、この種の排気ガス浄化用触媒コンバタｉＡ］ に
おいて、ハニカム体（１１の中心部の排気ガス流が周囲
より速く触媒との発熱反応が進行するため、中心部の熱
応力による歪、スコビングが著しいものになるので、凹
凸係合手段の形成富度をハニカム体＋１１の中心部が他
の部位より高くするようにすることは好ましいことであ
る。ハニカム体＋１１の中心部に他の部位より凹凸係合
手段を多数形成させることにより、排気ガスとの接触面
積、即ち排気ガス浄化用触媒の担持量を増加させること
ができ、かつ平板状帯材（１１）と波板状帯材（１２）
の係合関係を強固なものとじスコービングを効果的に防
止することができる。In addition, in this type of catalyst converter iA for exhaust gas purification, the exhaust gas flow at the center of the honeycomb body (11) undergoes an exothermic reaction with the catalyst faster than the surroundings, so distortion and scobbing due to thermal stress at the center occur. Therefore, it is preferable to make the formation density of the uneven engagement means higher in the center of the honeycomb body +11 than in other parts. By forming a large number of engagement means, it is possible to increase the contact area with the exhaust gas, that is, the amount of supported exhaust gas purifying catalyst, and the flat strip material (11) and the corrugated strip material (12) can be increased.
A strong engagement relationship can effectively prevent binding and scoving.
更に、本発明において、ハニカム体と波板状帯材との当
接部は、相聞剥離をより低減させるために、当接部の全
域あるいは一部なろう接や溶接などの固着手段により固
着してもよいことはいうまでもないことである。例えば
、第１図に示されるハニカム体の製造プロセスにおいて
、ろう打箔を平板状帯材（１１）と波板状帯材（１２）
の中間に配置させ、巻回形成後に加熱処理すればよく、
その固着手段は適宜のものでよい。Furthermore, in the present invention, in order to further reduce mutual peeling, the contact portion between the honeycomb body and the corrugated strip material is fixed by a fixing means such as brazing or welding over the entire area or a part of the contact portion. Needless to say, it is okay to do so. For example, in the manufacturing process of the honeycomb body shown in FIG.
It is sufficient to place it in the middle of the winding and heat-treat it after winding.
The fixing means may be any suitable one.
また、本発明において、ハニカム体を構成する平板状帯
材と波板状帯材に負荷される大・きな熱応力に基づく変
形力を効果的に吸収・緩和させるために、該平板状帯材
として波板状帯材の波形より小さいピッチ幅と波高を有
するものを↑采用することができる。In addition, in the present invention, in order to effectively absorb and alleviate the deformation force based on the large thermal stress applied to the flat strips and corrugated strips constituting the honeycomb body, the flat strips are Materials that have a smaller pitch width and wave height than the corrugation of the corrugated strip material can be used.
第５図は、本発明の第二の実施態様に基づく平板状帯材
ｔｉｌｌと波板状帯材（１２）の係合状態を示す第３図
相当図である。第３図の係合状態と相違して、第５図に
おいては平板状帯材（ｉｌｌに形成される凸部ｆａ）の
エツジがほぼ垂直であるため、両帯材のハニカム体の軸
方向への変位がより完全に防止される。FIG. 5 is a view corresponding to FIG. 3 showing the engaged state of the flat strip material till and the corrugated strip material (12) according to the second embodiment of the present invention. Unlike the engaged state in FIG. 3, in FIG. 5, the edge of the flat strip (the protrusion fa formed on the ill) is almost vertical, so that the edge of the flat strip (the protrusion fa formed on the ill) is almost vertical, so that displacement is more completely prevented.
第６図は、本発明の第三の実施態様に基づく平板状帯材
（１１）と波板状帯材（１２）の係合状態を示す第４図
相当図である。FIG. 6 is a view corresponding to FIG. 4 showing the engaged state of the flat strip material (11) and the corrugated strip material (12) according to the third embodiment of the present invention.
本発明において、波板状帯材（１２）として正弦波形、
円弧をつないだ波形、ギザギザ状波形などのｆ（１’／
の波形を有するものを使用することができるが、第６図
のものは台形波を有するものが示されている。このよう
な台形波を有する波板状帯材（１２）は、平板状帯材（
１１）との係合において係合させ易いという効果がある
。In the present invention, the corrugated strip material (12) has a sine wave shape,
f(1'/
Although a waveform having a trapezoidal waveform can be used, the waveform shown in FIG. 6 has a trapezoidal waveform. The corrugated strip (12) having such trapezoidal waves is similar to the flat strip (12).
11) has the effect of being easy to engage.
本発明において、凹凸係合手段（ａ、 ｂｌ を波板状
帯材（ｚ２）の波形の頂部領域においてのみ形成すると
いう技術的構成を探用しているため、第１図に示される
ように凹凸係合手段ｆａ、ｂ）の形成方法は極めて簡便
かつ効率的に行なうことができる。また、凹凸係合手段
１ａ、 ｂ）の形成後、第１図に示されるように両帯材
（１１，１２＋は係合固定された状態で巻回積層される
ため、巻回時に波板状帯材（１２）の波形が変形したり
することがない。このことの意義は重要で１巻回層層時
に波板状帯材（１２）の波形が変形してしまうと、各巻
回層間の不均一（平板状景林間の波板状帯材が変形し、
波の高さが不均一になることに起因）による触媒担持量
の不均一、排気ガス流の通過抵抗の不均一などがおこり
、品質の一定した排気ガス浄化用触媒コンバータを製造
することができない。In the present invention, we are exploring a technical configuration in which the uneven engagement means (a, bl) are formed only in the top region of the corrugations of the corrugated strip (z2), so as shown in FIG. The method of forming the uneven engagement means fa, b) can be carried out extremely simply and efficiently. In addition, after forming the uneven engagement means 1a, b), as shown in FIG. The waveform of the strip material (12) will not be deformed.The significance of this is important.If the waveform of the corrugated strip material (12) is deformed during one winding layer, it will cause damage between each winding layer. Heterogeneous (corrugated strips between tabular landscapes are deformed,
This causes unevenness in the amount of catalyst supported (due to uneven wave height) and unevenness in the passage resistance of the exhaust gas flow, making it impossible to manufacture a catalytic converter for exhaust gas purification with consistent quality. .
本発明において、前記平板状帯材（ｉｌｌとして、例え
ばＦｅ−Ｃｒ２Ｏ％−Ａ１２５％の耐熱性のステンレス
鋼、あるいはこれに耐酸化性を改善するために希土類を
加えた耐熱性のステンレス鋼などの厚さ０．０３ｍｍ
〜０．１ｍｍのものが、そして波板状帯材（１２）とし
て前記平板状帯材（Ｉｌｌをフォーミングギアの間を通
過させるなどして波付加工したものが使用される。各帯
材にＡｊ２を含有したステンレス鋼を用いると、熱処理
により帯材表面にウィスカー状のＡｎ 、０．が析出し
、これが排気ガス浄化用触媒を強固に担持するため好ま
しいものである。In the present invention, the flat strip material (ill) is made of, for example, heat-resistant stainless steel of Fe-Cr2O%-A125%, or heat-resistant stainless steel to which rare earth elements are added to improve oxidation resistance. Thickness 0.03mm
~0.1 mm, and the flat strip material (Ill) is used as the corrugated strip material (12), which has been corrugated by passing it through a forming gear. When stainless steel containing Aj2 is used, whisker-like An2,0. is precipitated on the surface of the strip material by heat treatment, which is preferable because it firmly supports the exhaust gas purifying catalyst.
本発明において、第１図に示される態様で製作された巻
回タイプのハニカム体ｆｉｌ は、それ自体で排気ガス
浄化装置として使用することができる。そのような場合
、巻回積層時に、ハニカム体の最周部に平板状帯材（１
１）を所望の回数だけ巻回し、金属ケースの代りとして
もよい。In the present invention, the wound type honeycomb body fil produced in the manner shown in FIG. 1 can be used as an exhaust gas purification device by itself. In such a case, when winding and laminating, a flat strip material (1
1) may be wound a desired number of times to replace the metal case.
更に、第７図に示されるように別体の筒状金属ケースに
ハニカム体を填装し、固着して排気ガス浄化用触媒コン
バータ（Ｃ＋ としてもよい。Furthermore, as shown in FIG. 7, a honeycomb body may be loaded into a separate cylindrical metal case and fixed thereto to form an exhaust gas purifying catalytic converter (C+).
前記金属ケースの素材として、前記ハニカム体と同種の
耐熱鋼を用いてもよいし、耐熱耐食性に冨むものを用い
てもよい。また、外側部分の金属材料を内側部分より耐
熱耐食性に冨むものとした二重構造のもの、具体的には
内側部分にフェライト系ステンレス鋼を、外側部分にオ
ーステナイト系ステンレス鋼を用いたクラツド鋼などを
用いても良い。As the material for the metal case, the same type of heat-resistant steel as the honeycomb body may be used, or a material with high heat and corrosion resistance may be used. In addition, there are double-structured steels in which the outer metal material is more heat-resistant and corrosion-resistant than the inner part, specifically clad steel that uses ferritic stainless steel for the inner part and austenitic stainless steel for the outer part. May be used.
〔発明の効果Ｊ
本発明の巻回タイプの触媒コンバータ用ハニカム体の製
造技術は、ハニカム体を構成する平板状帯材と波板状帯
材との係合工程をハニカム体の製造プロセスの中に組込
んでいるために、次のような優れた効果を奏する；
（１１平板状帯材と波板状帯材との係合固定を両帯材が
当接する波板状帯材の波形の頂部領域での凹凸係合で行
うため、該凹凸係合のための凹凸係合手段の形成が波形
の頂部領域での凹凸（エンボス）加工により極めて経済
的にかつ効率的に行なえる。従って、ハニカム体の製造
プロセスにおいて、凹凸係合手段の形成工程が律速段階
となることがない。[Effect of the Invention J The manufacturing technology of the wound type honeycomb body for a catalytic converter of the present invention includes the step of engaging the flat strip material and the corrugated strip material constituting the honeycomb body in the manufacturing process of the honeycomb body. Because it is incorporated into Since the engagement is performed by concave and convex engagement in the top region, the formation of the concave and convex engagement means for the concave and convex engagement can be carried out extremely economically and efficiently by embossing in the top region of the waveform.Therefore, In the manufacturing process of the honeycomb body, the step of forming the uneven engagement means does not become a rate-determining step.
（２）平板状帯材と波板状帯材との係合同定を巻回積層
工程の直前に行なうため、巻回積層時に波板状帯材の波
形が変形せず、常に一定の品質（巻回巻数、巻回物の直
径、セル密度など）を有する巻回タイプのハニカム体が
効率よく生産される。(2) Since the engagement between the flat strip and the corrugated strip is identified immediately before the winding and lamination process, the waveform of the corrugated strip does not deform during winding and lamination, and the quality is always constant ( A wound type honeycomb body having a certain number of turns, diameter of the wound material, cell density, etc.) can be efficiently produced.
第１図は、本発明の巻回タイプの触媒コンバータ用ハニ
カム体の製造フローシートである。
第２図は本発明の第一の実施態様に基づくハニカム体を
構成する平板状帯材と波板状帯材の係合状態を示す図で
ある。
第３図は第２図のＩ−ｒ線断面図であり、第４図は第２
図の■−■線断面図である。
第５図は本発明の第二の実施態様に基づく平板状帯材と
波板状帯材の係合状態を示す第３図相当図である。
第６図は本発明の第三の実施態様に基づく平板状帯材と
波板状帯材の係合状態を示す第４図相当図である。
第７図は、金属ケース内に巻回タイプのハニカム体を填
装し、固着して製作した触媒コンバータの正面図である
。
ｌ−・−・・ハニカム体
１１ ・・平板状帯材
１２・・・波板状帯材
１３・・・網目状通気孔路
２ ・・・・・金属ケース
Ａ・・・・・・・波付ローラ
Ｂ・・・・・・・カシメ（凹凸）ローラＣ・・ ・・・
・触媒コンバータFIG. 1 is a manufacturing flow sheet of a wound type honeycomb body for a catalytic converter according to the present invention. FIG. 2 is a diagram showing a state of engagement between a flat strip and a corrugated strip forming a honeycomb body according to the first embodiment of the present invention. Figure 3 is a sectional view taken along line I-r in Figure 2, and Figure 4 is a cross-sectional view of Figure 2.
It is a sectional view taken along the line ■-■ in the figure. FIG. 5 is a view corresponding to FIG. 3 showing the engaged state of the flat strip and the corrugated strip according to the second embodiment of the present invention. FIG. 6 is a view corresponding to FIG. 4 showing an engaged state of a flat strip and a corrugated strip according to a third embodiment of the present invention. FIG. 7 is a front view of a catalytic converter manufactured by loading and fixing a wound type honeycomb body into a metal case. l-...Honeycomb body 11...Flat strip material 12...Corrugated strip material 13...Mesh ventilation hole channel 2...Metal case A......Wave Attached roller B... Caulking (uneven) roller C...
・Catalytic converter
Claims (1)
て触媒コンバータ用のハニカム体を製造する方法におい
て、 （ｉ）前記平板状帯材と波板状帯材を相互に当接するよ
うに重積すること、 （ｉｉ）両帯材が当接する波板状帯材の波形の頂部領域
において両帯材を同時に凹凸加工 することにより凹凸係合手段を形成して 両帯材を係合させること、 （ｉｉｉ）次いで係合固定された両帯材を巻回積層して
巻回タイプのハニカム体とするこ と、 の工程からなることを特徴とする触媒コンバータ用ハニ
カム体の製造方法。 ２、凹凸加工が、両帯材が当接する波板状帯材の全ての
波形の頂部領域において行なわれるものである請求項第
１項に記載の触媒コンバータ用ハニカム体の製造方法。 ３、凹凸加工が、両帯材が当接する波板状帯材の一部の
波形の頂部領域において行なわれるものである請求項第
１項に記載の触媒コンバータ用ハニカム体の製造方法。 ４、凹凸加工による凹凸係合手段の形成密度が、ハニカ
ム体の中心部分の側が大きくなるようにしたものである
請求項第１項に記載の触媒コンバータ用ハニカム体の製
造方法。 ５、平板状帯材が、波板状帯材の波形よりも小さい波形
を有するものである請求項第１項に記載の触媒コンバー
タ用ハニカム体の製造方法。 ６、波板状帯材の波形が、台形波である請求項第１項に
記載の触媒コンバータ用ハニカム体の製造方法。[Scope of Claims] 1. A method for manufacturing a honeycomb body for a catalytic converter by winding and laminating a flat strip and a corrugated strip of thin metal plates, including: (i) the flat strip and the corrugated strip; (ii) convex-concave engagement means by stacking the plate-like strips so as to abut each other; (ii) simultaneously machining the corrugated strips in the top region of the corrugation where both the strips abut; (iii) Then, the engaged and fixed both band materials are wound and laminated to form a wound type honeycomb body. A method for manufacturing a honeycomb body for a catalytic converter. 2. The method for manufacturing a honeycomb body for a catalytic converter according to claim 1, wherein the roughening process is performed on all the corrugated top regions of the corrugated strip where both the strips come into contact. 3. The method for manufacturing a honeycomb body for a catalytic converter according to claim 1, wherein the roughening process is carried out on a top region of a part of the waveform of the corrugated strip material where both the strip materials abut. 4. The method for manufacturing a honeycomb body for a catalytic converter according to claim 1, wherein the density of formation of the concave-convex engaging means by the concave-convex processing is greater on the central portion side of the honeycomb body. 5. The method for manufacturing a honeycomb body for a catalytic converter according to claim 1, wherein the flat strip has a waveform smaller than that of the corrugated strip. 6. The method for manufacturing a honeycomb body for a catalytic converter according to claim 1, wherein the waveform of the corrugated strip material is a trapezoidal wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1315180A JPH03178337A (en) | 1989-12-06 | 1989-12-06 | Preparation of honeycomb body for catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1315180A JPH03178337A (en) | 1989-12-06 | 1989-12-06 | Preparation of honeycomb body for catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03178337A true JPH03178337A (en) | 1991-08-02 |
Family
ID=18062386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1315180A Pending JPH03178337A (en) | 1989-12-06 | 1989-12-06 | Preparation of honeycomb body for catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03178337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047650C (en) * | 1992-04-03 | 1999-12-22 | 埃米特放射技术股份有限公司 | Conical honeycomb body |
-
1989
- 1989-12-06 JP JP1315180A patent/JPH03178337A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047650C (en) * | 1992-04-03 | 1999-12-22 | 埃米特放射技术股份有限公司 | Conical honeycomb body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02293043A (en) | Purifier of exhaust gas | |
| JPH0744733Y2 (en) | Exhaust gas purification device | |
| JPH04103818A (en) | Exhaust gas purification device | |
| JP2862298B2 (en) | Exhaust gas purification device | |
| JP3392895B2 (en) | X-wrap type metal honeycomb body | |
| JPH03178337A (en) | Preparation of honeycomb body for catalytic converter | |
| JPH03178338A (en) | Preparation of honeycomb body for catalytic converter | |
| JP3037365B2 (en) | Exhaust gas purification device | |
| JP2915429B2 (en) | Exhaust gas purification device | |
| JPH07308587A (en) | Metallic carrier | |
| JP3262624B2 (en) | Metal carrier | |
| JPH03178336A (en) | Catalytic converter for purifying exhaust gas | |
| JP3693706B2 (en) | Metal carrier for exhaust gas purification | |
| JPH03178319A (en) | Catalytic converter for waste gas purification | |
| JPH07303843A (en) | Metallic support | |
| JPH07308586A (en) | Metallic carrier | |
| JPH07171418A (en) | Metallic carrier | |
| JPH07171420A (en) | Metallic carrier | |
| JPH07171413A (en) | Metal carrier | |
| JPH07171411A (en) | Metal carrier | |
| JPH07308584A (en) | Metallic carrier | |
| JPH08117608A (en) | Metallic honeycomb body | |
| JPH08131843A (en) | Metallic carrier | |
| JPH07308589A (en) | Metallic carrier | |
| JPH05200304A (en) | Exhaust gas purifying device |