JP2515147B2 - Manufacturing method of metal carrier - Google Patents
Manufacturing method of metal carrierInfo
- Publication number
- JP2515147B2 JP2515147B2 JP63333914A JP33391488A JP2515147B2 JP 2515147 B2 JP2515147 B2 JP 2515147B2 JP 63333914 A JP63333914 A JP 63333914A JP 33391488 A JP33391488 A JP 33391488A JP 2515147 B2 JP2515147 B2 JP 2515147B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- honeycomb
- brazing
- metal carrier
- aluminum
- 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
- 229910052751 metal Inorganic materials 0.000 title claims description 21
- 239000002184 metal Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 78
- 238000005219 brazing Methods 0.000 claims description 29
- 229910000838 Al alloy Inorganic materials 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 27
- 229910052782 aluminium Inorganic materials 0.000 description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 20
- 239000011888 foil Substances 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000007747 plating Methods 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、主として自動車の排気ガス浄化用の触媒担
体として使用されるメタル担体の製造方法に関する。The present invention relates to a method for producing a metal carrier mainly used as a catalyst carrier for purifying exhaust gas of an automobile.
［従来の技術］ 従来、自動車の排気ガス浄化用の触媒担体として使用
されるメタル担体は、波板箔と平板箔とを交互に重ね合
わせて巻上げて形成したハニカム形状体と、該ハニカム
形状体を収納する外筒とで構成されている。このハニカ
ム形状体に使用される基材は、耐高温酸化性を有する高
アルミニウム含有量のステンレス鋼材が主として用いら
れている。しかしこの鋼材は薄板ローラ加工による波板
箔や平板箔への加工性の制約により鋼材中のアルミニウ
ム含量が10重量％以下という上限があり、高温の排気ガ
スに晒される基材として耐高温酸化性を充分満足させる
ことができない（特公昭58−23138号公報）。[Prior Art] Conventionally, a metal carrier used as a catalyst carrier for purifying exhaust gas of an automobile includes a honeycomb-shaped body formed by alternately laminating corrugated sheet foil and a flat-plate foil, and rolling up the honeycomb-shaped body. It is configured with an outer cylinder that stores the. As the base material used for this honeycomb shaped body, a stainless steel material having a high aluminum content and having a high temperature oxidation resistance is mainly used. However, this steel material has an upper limit of 10% by weight or less of aluminum in the steel material due to the restriction of the workability of corrugated sheet foil and flat sheet foil by thin plate roller processing, and it is resistant to high temperature oxidation as a base material exposed to high temperature exhaust gas. Cannot be fully satisfied (Japanese Patent Publication No. 58-23138).
そのため基材のアルミニウム含量を高めて基材の耐熱
性を向上させる工夫がなされている。例えば、アルミニ
ウム箔を鋼材表面にラミネートしたり、アルミニウムメ
ッキを施した鋼材を用いてメタル担体を作製する方法が
提案されている。例えば、特開昭62−227447号公報に
は、鉄合金箔の両面にアルミニウム箔を還元剤を介して
ロール圧着してラミネートされた基材で作製した波板と
平板を用い、ハニカム形状体を形成し外筒に挿入してハ
ニカム担体を形成し、その後このハニカム担体を真空中
もしくは還元雰囲気下で300〜650℃で拡散処理し、次い
で大気雰囲気下で800〜1000℃に加熱酸化したハニカム
担体の表面をアルミナで覆い耐酸化性を高めるとともに
ハニカム形状体と外筒とを拡散接合し、ハニカム担体の
端部の固定工程を要しないメタル担体の製造方法が開示
されている。Therefore, measures have been taken to increase the aluminum content of the base material and improve the heat resistance of the base material. For example, a method has been proposed in which an aluminum foil is laminated on the surface of a steel material, or a metal carrier is produced using a steel material plated with aluminum. For example, in JP-A-62-227447, a honeycomb-shaped body is formed by using a corrugated plate and a flat plate made of a laminated base material obtained by roll-pressing aluminum foil on both sides of an iron alloy foil through a reducing agent. Formed and inserted into the outer cylinder to form a honeycomb carrier, and then this honeycomb carrier is subjected to a diffusion treatment at 300 to 650 ° C. in a vacuum or a reducing atmosphere, and then heated and oxidized to 800 to 1000 ° C. in an air atmosphere. There is disclosed a method for manufacturing a metal carrier in which the surface of the honeycomb carrier is covered with alumina to enhance the oxidation resistance and the honeycomb shaped body and the outer cylinder are diffusion-bonded to each other, and the step of fixing the end portion of the honeycomb carrier is not required.
［発明が解決しようとする課題］ 前記の鋼材の表面にアルミニウム箔をラミネートした
基材を用いてメタル担体を製造する方法は、鋼材にラミ
ネートしたアルミニウム箔を鋼材への拡散と表面の酸化
物の形成とに使用するため、両者の割合の調整が必ずし
も充分におこなうことができず、基材の耐熱性を予期し
たほど高めることができない。すなわち、基材中に拡散
させたアルミニウムが表面の酸化物形成時に表面へ再拡
散するため基材中のアルミニウムの量が必ずしも高くな
っていないという問題点がある。[Problems to be Solved by the Invention] A method for producing a metal carrier using a base material obtained by laminating an aluminum foil on the surface of a steel material described above is carried out by diffusing an aluminum foil laminated on a steel material into a steel material and forming oxides on the surface. Since it is used for forming, the ratio of the two cannot be adjusted sufficiently and the heat resistance of the base material cannot be improved as expected. That is, there is a problem that the amount of aluminum in the base material is not necessarily high because the aluminum diffused in the base material re-diffuses into the surface when the oxide is formed on the surface.
また、鋼材の表面にアルミニウム合金をメッキしてハ
ニカム形状体を形成した後に拡散処理をおこなう場合
は、通常、メッキ層の表面部に酸化物が生成しているた
めハニカム形状体の形状固定するろう材を接合部分に均
一に塗布することができず、ハニカム形状体の接合が不
十分となりやすく使用時に変形したり破損することがあ
る。またメッキを施された鋼材を加熱拡散処理すると、
アルミニウムが鋼材内部に拡散するため基材の寸法が縮
小する（第５図参照）。そのためハニカム形状に成形し
た後で拡散接合処理をおこなうと接合する部位に隙間が
生じやすく、ろう付けによるハニカム形状体の固体が不
十分となりやすい。Further, when the diffusion treatment is performed after the aluminum alloy is plated on the surface of the steel material to form the honeycomb-shaped body, the shape of the honeycomb-shaped body will usually be fixed because the oxide is generated on the surface of the plating layer. Since the material cannot be uniformly applied to the joint portion, the honeycomb-shaped body is apt to be insufficiently joined and may be deformed or damaged during use. In addition, when the plated steel material is heated and diffused,
Since aluminum diffuses inside the steel material, the size of the base material is reduced (see FIG. 5). Therefore, if the diffusion bonding process is performed after forming the honeycomb shape, a gap is apt to be formed at the bonding site, and the solid of the honeycomb-shaped body due to brazing tends to be insufficient.
本発明は、前記の問題点を解決してろう材による接合
固定が容易な基材を使用して耐高温酸化性を有するメタ
ル担体の製造方法を確立することを目的とする。It is an object of the present invention to solve the above problems and to establish a method for producing a metal carrier having high-temperature oxidation resistance by using a base material that can be easily joined and fixed by a brazing material.
［課題を解決するための手段］ 本発明のメタル担体の製造方法は、表面にアルミニウ
ム合金メッキが施されたメタル担体形成用基材を、、真
空度１×10-3Torr以下、温度900〜1300℃の条件で少な
くとも20分以上加熱してメッキ層を該基材中に均一拡散
処理する拡散処理工程と、該拡散処理が施された基材を
用いて波板と平板とに成形し、該波板と平板を重ねてロ
ール状に巻上げハニカム形状に成形した後ろう材を塗布
してろう付接合する成形工程とからなる。[Means for Solving the Problems] In the method for producing a metal carrier of the present invention, a metal carrier-forming base material having a surface plated with an aluminum alloy is used, a vacuum degree of 1 × 10 −3 Torr or less, and a temperature of 900 to A diffusion treatment step of uniformly diffusing the plating layer into the base material by heating at least 20 minutes or more under the condition of 1300 ° C., and forming a corrugated plate and a flat plate using the base material subjected to the diffusion treatment, The corrugated plate and the flat plate are overlapped with each other, rolled up in a roll shape to form a honeycomb shape, and then a brazing material is applied and brazing is performed.
本発明に用いる基材は、表面にアルミニウム合金のメ
ッキを施した金属箔が使用される。そしてまずこの基材
を高温加熱処理による拡散処理工程でメッキ層成分が基
材内部に均一に拡散されて基材を耐高温酸化性に改質す
る。この拡散処理を受けた基材は、成形工程で波板およ
び平板に成形される。そしてこの波板と平板とを重ねて
ロール状に巻上げハニカム形状体に成形し外筒に格納さ
れてメタル担体とされる。その後ろう材を塗布し、ろう
付接合され一体構造とされる。As the base material used in the present invention, a metal foil whose surface is plated with an aluminum alloy is used. Then, first, the plating layer component is uniformly diffused inside the base material in a diffusion treatment step by high temperature heat treatment to modify the base material to high temperature oxidation resistance. The base material that has undergone this diffusion treatment is molded into a corrugated plate and a flat plate in the molding process. Then, the corrugated plate and the flat plate are overlapped with each other and rolled up into a roll to form a honeycomb-shaped body, which is housed in an outer cylinder to form a metal carrier. After that, a brazing material is applied and brazing is performed to form an integral structure.
このメタル担体は、さらにアルミナ担持層を形成し次
いで貴金属触媒をアルミナ担体層に担持させて排気ガス
浄化用触媒が形成される。In this metal carrier, an alumina supporting layer is further formed, and then a noble metal catalyst is supported on the alumina carrier layer to form an exhaust gas purifying catalyst.
本発明の特徴は、前記基材の表面のアルミニウムメッ
キ層を特定の条件の拡散処理工程をおこなうことにあ
る。すなわち、この条件は温度が900〜1300℃の範囲で
真空度が１×10-3Torr以下の減圧で20分間以上おこなう
ことにある。この処理により基材の表面には新たに酸化
物を形成することなく基材内部にアルミニウム合金が拡
散するとともに基材に含まれるAl等を蒸発させて除去す
ることができる。さらに驚くべきことに、Al等の蒸発に
ともない基材表面に形成されている酸化物膜が除去され
て基材の表面が清浄化でき、ろう付けを確実にすること
ができる。The feature of the present invention resides in that the aluminum plating layer on the surface of the substrate is subjected to a diffusion treatment step under specific conditions. That is, this condition is that the temperature is in the range of 900 to 1300 ° C. and the degree of vacuum is 1 × 10 −3 Torr or less under reduced pressure for 20 minutes or more. By this treatment, the aluminum alloy can be diffused inside the base material and the Al and the like contained in the base material can be evaporated and removed without newly forming an oxide on the surface of the base material. Even more surprisingly, the oxide film formed on the surface of the base material is removed with the evaporation of Al and the like, so that the surface of the base material can be cleaned and brazing can be ensured.
拡散処理の温度を900〜1300℃の範囲にするのは、ア
ルミニウムの拡散を充分におこなうためである。温度が
900℃未満であるとアルミニウムの拡散が充分おこなは
れないので好ましくない。また1300℃を超えると基材の
一部が溶融する場合が有り好ましくない。雰囲気を真空
度10-3Torr以下の減圧下でおこなうのは、表面に付着し
ている揮発性物質を除去して、表面を清浄するとともに
酸素圧を下げて表面での酸化物の形成を抑制するためで
ある。また、処理時間が20分以上であることは、アルミ
ニウムの拡散を充分おこなうとともに基材中のAl等を蒸
発させるとともに表面の酸化物を除去するためである。
処理時間が20分以下であると表面の酸化物を除去して表
面の浄化が期待できない。The diffusion treatment temperature is set in the range of 900 to 1300 ° C. in order to sufficiently diffuse aluminum. temperature
If it is lower than 900 ° C, aluminum is not sufficiently diffused, which is not preferable. Further, if it exceeds 1300 ° C, a part of the substrate may melt, which is not preferable. The atmosphere is depressurized at a vacuum of 10 -3 Torr or less to remove volatile substances adhering to the surface, clean the surface and lower the oxygen pressure to suppress the formation of oxides on the surface. This is because In addition, the treatment time of 20 minutes or more is for sufficiently diffusing aluminum and evaporating Al and the like in the base material and removing oxides on the surface.
If the treatment time is 20 minutes or less, the surface oxide cannot be removed to purify the surface.
得られる基材は、ろう材に対する漏れ性が改善されて
ろう材の塗布が容易となりろう付けを確実におこなうこ
とができる。The obtained base material has improved leaktability to the brazing material, facilitates application of the brazing material, and ensures brazing.
成形工程では拡散処理をされた基材を波板と平板とに
加工し、重ねてロール状に巻上げハニカム形状体に成形
する。その後ろう材を塗布し加熱によりろう付けをおこ
ない、ハニカム形状体を接合固定してメタル担体とす
る。In the molding step, the diffusion-treated base material is processed into a corrugated plate and a flat plate, which are stacked and rolled up into a honeycomb-shaped body. After that, a brazing material is applied and brazing is performed by heating to bond and fix the honeycomb-shaped body to a metal carrier.
［作用］ 本発明のメタル担体の製造方法によれば、アルミニウ
ム合金のメッキ層を有する基材を前記の特定条件で拡散
処理をおこなった基材を使用するため、成形されたハニ
カム形状体の表面特性が改善されろう材への濡れ性が良
くなりろう付けの確実性を高めることができる。また、
拡散処理した後で成形するため成形後に拡散処理する場
合に比べて強固なメタル担体が形成できる。[Operation] According to the method for producing a metal carrier of the present invention, since the base material having the plated layer of the aluminum alloy is subjected to the diffusion treatment under the above-mentioned specific conditions, the surface of the formed honeycomb-shaped body is used. The characteristics are improved, the wettability to the brazing material is improved, and the reliability of brazing can be increased. Also,
Since the molding is performed after the diffusion treatment, a stronger metal carrier can be formed as compared with the case where the diffusion treatment is performed after the molding.
［実施例］ 以下実施例に本発明を具体的に説明する。[Examples] The present invention will be specifically described below with reference to Examples.
使用する基材は、板厚が50μｍのフェライトステンレ
ス鋼材箔であり、その表面に２〜５μｍのアルミニウム
合金（アルミニウムとシリコンとの合金）のメッキ層が
形成されている。第１図にこの基材の模式断面図を示
す。この基材９は表面がメッキ層10で被覆されており、
そのメッキ層10の上面は大気中に晒されているためで酸
化されて酸化アルミニウムの被膜11が形成されている。The substrate used is a ferritic stainless steel foil having a plate thickness of 50 μm, and a plated layer of an aluminum alloy (alloy of aluminum and silicon) having a thickness of 2 to 5 μm is formed on the surface thereof. FIG. 1 shows a schematic sectional view of this base material. The surface of the base material 9 is coated with a plating layer 10,
Since the upper surface of the plating layer 10 is exposed to the atmosphere, it is oxidized and a coating 11 of aluminum oxide is formed.
拡散処理工程は、この基材９を真空加熱炉にいれ、真
空度１×10-4以下に保って1000℃で20分間加熱した。In the diffusion treatment step, the base material 9 was placed in a vacuum heating furnace and heated at 1000 ° C. for 20 minutes while keeping the degree of vacuum at 1 × 10 −4 or less.
前記の拡散処理条件で処理されると処理の初期に、第
２図に示すように基材９は、アルミニウム合金のメッキ
層10が基材９の内部に均一に拡散して消失し、基材９の
表面に酸化物皮膜11が一部残る。しかし、この残った酸
化物皮膜11も処理が進み処理時間が20分以上になるとこ
の酸化物被膜11も消失する。すなわち基材９中のAl等が
蒸発する際に酸化物被膜11も同時に飛散除去されている
ものと考えられる。When the substrate is treated under the above diffusion treatment condition, the substrate 9 disappears in the initial stage of the treatment as shown in FIG. A part of the oxide film 11 remains on the surface of 9. However, the processing of the remaining oxide film 11 progresses, and when the processing time becomes 20 minutes or more, the oxide film 11 also disappears. That is, it is considered that the oxide film 11 is also scattered and removed at the same time when Al or the like in the substrate 9 is evaporated.
第３図にこの拡散処理をおこなった後の基材の表面に
ろう付を付着させた時のろう材の濡れ状態を示す。この
溶融ろう材は基材に馴染んで表面張力により球状になら
ず平面状に濡れていることにより前記の考えの正当性を
示している。一方比較としてこの拡散処理をおこなわな
かった場合は、第４図に示す様に基材の表面は、ろう材
に対して親和性を示さず、ろう材は高い表面張力により
球状になつている。したがって、ろう付け性を向上させ
るには、本発明の拡散処理が有効であることを示してい
る。FIG. 3 shows the wetting state of the brazing material when brazing is applied to the surface of the base material after the diffusion treatment. This molten brazing material shows the justification of the above-mentioned idea because the molten brazing material is adapted to the base material and does not become spherical due to the surface tension but wets in a planar shape. On the other hand, as a comparison, when this diffusion treatment is not performed, the surface of the base material does not show affinity for the brazing material as shown in FIG. 4, and the brazing material is spherical due to high surface tension. Therefore, it is shown that the diffusion treatment of the present invention is effective for improving the brazing property.
さらに比較として第５図に示す様に拡散処理工程をハ
ニカム形状体を形成した後でおこなうと、アルミニウム
合金層が基材内部に拡散され基材寸法がアルミニウム合
金層分だけ縮小する。その結果、ハニカム形状体は接合
部位に間隙が生ずる。そのため得られるメタル担体は、
使用時に破損や変形がおきやすい。なお、拡散処理は、
波板や平板に成形した後でも可能である。Further, as a comparison, when the diffusion treatment step is performed after forming the honeycomb shaped body as shown in FIG. 5, the aluminum alloy layer is diffused inside the base material and the base material size is reduced by the aluminum alloy layer. As a result, the honeycomb-shaped body has a gap at the bonding site. Therefore, the metal carrier obtained is
It is easily damaged or deformed during use. The diffusion process is
It is possible even after forming into a corrugated plate or a flat plate.
成形工程は、拡散処理された前記の基材を波板と平板
に成形し、重ね合わせてロール状に巻上げてハニカム形
状体とし、その後ろう材を塗布し1200℃に加熱してろう
付けをおこなう。なお、このろう付けの加熱は、ハニカ
ム形状体を収納容器の外筒に挿入した後おこなうことも
できる。In the forming step, the base material that has been subjected to the diffusion treatment is formed into a corrugated plate and a flat plate, superposed and rolled up into a roll to form a honeycomb-shaped body, and then a brazing material is applied and brazing is performed by heating to 1200 ° C. . The heating for brazing can be performed after inserting the honeycomb-shaped body into the outer cylinder of the storage container.
得られたメタル担体は耐高温酸化性を有し排気ガス浄
化用の担体として有用である。このメタル担体は、アル
ミナの担体層を形成しアルミナ担持層に貴金属触媒を担
持して排気ガス浄化触媒として用いられる。The obtained metal carrier has high temperature oxidation resistance and is useful as a carrier for purifying exhaust gas. This metal carrier is used as an exhaust gas purifying catalyst by forming a carrier layer of alumina and supporting a noble metal catalyst on the alumina supporting layer.
［効果］ 本発明のメタル担体の製造方法によれば、予め基材の
アルミニウム合金メッキ層の拡散処理を特定の条件でお
こなうことにより基材の表面が清浄となり、ろう材の塗
布およびろう付けが容易となる。[Effect] According to the method for producing a metal carrier of the present invention, the surface of the base material is cleaned by performing the diffusion treatment of the aluminum alloy plating layer of the base material in advance under specific conditions, and the brazing material can be applied and brazed. It will be easy.
この基材に用いる鋼材はアルミニウムの含量が増加す
ると通常薄板ローラ成形による箔状化が困難となる。し
かし本発明では、アルミニウム含量の少ない鋼材箔にア
ルミニウム合金をメッキした基材を用い、拡散処理によ
りアルミニウムを鋼材箔内部に拡散させてアルミニウム
の含量を高めるので、成形上の問題を解消してアルミニ
ウム含量の多い耐高温酸化性の優れた基材とすることが
できる。したがって耐高温酸化性の優れたハニカム形状
体を製造することができる。If the aluminum content of the steel material used as the base material increases, it is usually difficult to form a foil by forming a thin plate roller. However, in the present invention, a base material obtained by plating an aluminum alloy on a steel foil having a low aluminum content is used, and aluminum is diffused inside the steel foil by a diffusion treatment to increase the aluminum content. A base material having a high content and excellent in high temperature oxidation resistance can be obtained. Therefore, it is possible to manufacture a honeycomb-shaped body having excellent high-temperature oxidation resistance.
さらにこの拡散処理により基材表面に存在する酸化物
被膜を除去できるので、表面清浄化工程としてワイヤー
ブラッシ、ヤスリなどによる除去が不用となる。Furthermore, since the oxide film existing on the surface of the substrate can be removed by this diffusion treatment, the removal by wire brush, file or the like becomes unnecessary as a surface cleaning step.
第１図は本実施例で用いる基材の断面模式図であり、第
２図は第１図の基材に拡散処理を施した初期の基材の状
態を示す断面模式図であり、第３図はろう材と基材との
接触面を示す拡大断面図であり、第４図は拡散処理をお
こなわない基材とろう材との接触面を示す拡大断面図で
あり、第５図はハニカム形状体を拡散処理した後の縮小
状況を示す模式図である。 ９……基材 10……アルミニウム合金のメッキ層 11……酸化物被膜FIG. 1 is a schematic cross-sectional view of the base material used in this example, and FIG. 2 is a schematic cross-sectional view showing the initial condition of the base material after the diffusion treatment of the base material of FIG. FIG. 4 is an enlarged cross-sectional view showing a contact surface between a brazing material and a base material, FIG. 4 is an enlarged cross-sectional view showing a contact surface between a base material and a brazing material that are not subjected to diffusion treatment, and FIG. 5 is a honeycomb. It is a schematic diagram which shows the reduction | restoration state after carrying out the diffusion process of the shaped body. 9 ... Base material 10 ... Aluminum alloy plating layer 11 ... Oxide film
───────────────────────────────────────────────────── フロントページの続き (72)発明者 近藤 正恒 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (56)参考文献 特開 昭64−4253（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masatsune Kondo 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (56) References Japanese Patent Laid-Open No. 64-4253 (JP, A)
Claims (1)
メタル担体形成用基材を、真空度１×10-3Torr以下、温
度900〜1300℃の条件で少なくとも20分以上加熱してメ
ッキ層を該基材中に均一拡散処理する拡散工程と、 該拡散処理が施された基材を波板と平板とに成形し、該
波板と平板を重ねてロール状に巻上げハニカム形状に成
形した後ろう材を塗布してろう付接合によりハニカム形
状体とする成形工程とからなるメタル担体の製造方法。1. A metal carrier-forming substrate having a surface plated with an aluminum alloy is heated at a vacuum degree of 1 × 10 −3 Torr or less and a temperature of 900 to 1300 ° C. for at least 20 minutes to form a plated layer. After a diffusing step of uniformly diffusing the base material into a corrugated plate and a flat plate, the corrugated plate and the flat plate are overlapped and rolled up into a honeycomb shape. A method of manufacturing a metal carrier, which comprises a step of applying a brazing material and brazing and joining it into a honeycomb-shaped body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63333914A JP2515147B2 (en) | 1988-12-28 | 1988-12-28 | Manufacturing method of metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63333914A JP2515147B2 (en) | 1988-12-28 | 1988-12-28 | Manufacturing method of metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02180643A JPH02180643A (en) | 1990-07-13 |
| JP2515147B2 true JP2515147B2 (en) | 1996-07-10 |
Family
ID=18271374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63333914A Expired - Lifetime JP2515147B2 (en) | 1988-12-28 | 1988-12-28 | Manufacturing method of metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515147B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230027272A (en) * | 2020-07-01 | 2023-02-27 | 제이에프이 스틸 가부시키가이샤 | Stainless steel sheet with Al coating layer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH599998A5 (en) * | 1974-08-23 | 1978-06-15 | Grosse Webereimaschinen Gmbh | |
| JPS644253A (en) * | 1987-06-24 | 1989-01-09 | Calsonic Corp | Production of metallic catalyst carrier |
-
1988
- 1988-12-28 JP JP63333914A patent/JP2515147B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02180643A (en) | 1990-07-13 |
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