JPH02187151A - Production of metallic carrier - Google Patents
Production of metallic carrierInfo
- Publication number
- JPH02187151A JPH02187151A JP896289A JP628989A JPH02187151A JP H02187151 A JPH02187151 A JP H02187151A JP 896289 A JP896289 A JP 896289A JP 628989 A JP628989 A JP 628989A JP H02187151 A JPH02187151 A JP H02187151A
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- honeycomb
- honeycomb part
- brazing
- metal carrier
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000005219 brazing Methods 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 239000002184 metal Substances 0.000 claims description 39
- 238000009792 diffusion process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- 239000010935 stainless steel Substances 0.000 abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052759 nickel Inorganic materials 0.000 abstract description 4
- 238000005304 joining Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 241000264877 Hippospongia communis Species 0.000 abstract 5
- 238000004804 winding Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 7
- 239000000969 carrier Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000208140 Acer Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000012733 comparative method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自動車の排気カス浄化用触媒などに使用するメ
タル担体の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing a metal carrier used in a catalyst for purifying automobile exhaust residue.
メタル担体はセラミックス担体に比べて昇温特性や耐衝
撃性に優れている等の利点を有するので、近年、例えば
自動車などの車両用の排気ガス浄化用触媒の担体として
使用されている。Metal carriers have advantages over ceramic carriers, such as superior temperature rise characteristics and impact resistance, and have recently been used as carriers for exhaust gas purification catalysts for vehicles such as automobiles.
メタル担体は通常ハニカム部を外筒に収納した構造を有
し、前記ハニカム部は例えば金楓の薄板からなる平板と
波板とを交互に１ねて製造する。The metal carrier usually has a structure in which a honeycomb part is housed in an outer cylinder, and the honeycomb part is manufactured by alternately laying flat plates and corrugated plates made of thin plates of, for example, gold maple.
それ故、ハニカム部と外筒との接合が問題となる。例え
はアメリカ付衆国特許第４３００９５６号明細曹には、
アルミニウムを含む合金からなる平板と波板とを重ねて
巻回し、次いで約１０００℃ないし約１２００℃の範囲
の温度で約［１５ないし５ミクロ気圧の水素雰囲気下で
加熱することにより平板と波板との接触部を拡散接合す
るメタル担体のハニカム部の製造方法が開示されている
。又、接合には前記拡散接合の外に例えばニッケル系ろ
う材などを用いるろう付けがある。Therefore, joining the honeycomb part and the outer cylinder becomes a problem. For example, in United States Patent No. 4300956,
A flat plate and a corrugated plate made of an alloy containing aluminum are layered and wound, and then heated in a hydrogen atmosphere of about [15 to 5 microatmospheres] at a temperature in the range of about 1000°C to about 1200°C. A method for manufacturing a honeycomb portion of a metal carrier is disclosed in which the contact portion with the metal carrier is diffusion bonded. In addition to the above-mentioned diffusion bonding, there is also brazing using a nickel-based brazing material, for example.
メタル担体を拡散接合で一体化する場合、強固な拡散接
合を得るには材料成分に１５重ｉ％以上のアルミニウム
が必要である。しかし例えばクラツド板としてアルミニ
ウム１に一添加した鋼板はアルミニウムと鋼板との溶接
部の延性が乏しく、後加工が酷しいためメタン担体の外
筒としては使用しにくい。然して、メタル担体の外筒と
してアルミニウムを宮ま々い通常のステンレス板を使用
する場合には、外筒と内部のノ・二カム部とはその接触
部において十分な拡散接合強度が得られない。When integrating metal carriers by diffusion bonding, 15% or more of aluminum is required as a material component in order to obtain strong diffusion bonding. However, for example, a steel plate with one addition of aluminum 1 used as a cladding plate has poor ductility at the welded part between the aluminum and the steel plate, and the post-processing is difficult, so it is difficult to use it as an outer cylinder of a methane carrier. However, when using an ordinary stainless steel plate instead of aluminum as the outer cylinder of the metal carrier, sufficient diffusion bonding strength cannot be obtained at the contact area between the outer cylinder and the inner two-cam part. .
一方、ろう付けによって外筒とハニカム部及びハニカム
部の平板と波板とを、端面のみで又は長さ方向全体で接
合する場合には、ろう付は部においてろう材と母材の化
学成分が相互に拡散し高温（ｌｒ４ｔＲ化性を損うため
、例えは排気ガス浄化用触媒として使用した場合、排気
カスが主に通過し触媒成分と反応するメタル担体中心部
（ハニカム部の中央部）が異常酸化を起す不具合があり
九。On the other hand, when the outer cylinder and the honeycomb part, and the flat plate and corrugated plate of the honeycomb part are joined by brazing only at the end faces or in the entire length direction, the chemical components of the brazing material and the base material are For example, when used as an exhaust gas purification catalyst, the central part of the metal carrier (the central part of the honeycomb part) where the exhaust gas mainly passes through and reacts with the catalyst components There is a problem that causes abnormal oxidation.
本発明は前記従来技術における問題点を解決するための
ものであり、その目的とするところはステンレス鋼製の
外筒を使用した場合でも外部とハニカム部とが強固に接
合し、且つノ・ニカム部の中央部においても排気ガス浄
化用触媒として使用中異常酸化反応を起さない耐久性に
優れたメタル担体を容易に得ることができる姿遣方法を
提供することにある。The present invention is intended to solve the above-mentioned problems in the prior art, and its purpose is to firmly connect the outside and the honeycomb part even when a stainless steel outer cylinder is used, and to An object of the present invention is to provide a method for easily obtaining a highly durable metal carrier that does not cause abnormal oxidation reactions during use as an exhaust gas purifying catalyst even in the central part of the catalyst.
すなわち本発明のメタル担体の製造方法は、耐ＰＩ／％
金属製の平板と波板とを重ねて巻回した構造を有するハ
ニカム部上、耐熱金属製の外筒に収納してなるメタル担
体を製造するにあたり、ハニカム部と外筒との接触部蒼
びにハニカム部の最外周及びその近傍の膚合わせて数層
の平板と波板との接触部をろう付けし、ノ・ニカム部の
残りの層の平板と波板との接触部を拡散接合することを
特徴とする。That is, the method for manufacturing a metal carrier of the present invention has a resistance to PI/%
In manufacturing a metal carrier, which has a structure in which a flat metal plate and a corrugated plate are stacked and wound together, and is housed in a heat-resistant metal outer cylinder, the contact area between the honeycomb part and the outer cylinder is Brazing the contact areas between several layers of flat plates and corrugated plates on the outermost periphery of the honeycomb part and the vicinity thereof, and diffusion bonding the contact areas between the flat plates and corrugated plates in the remaining layers of the honeycomb part. It is characterized by
耐熱金属としては例えばステンレススチールなどの慣用
の材料を使用することができる。外筒はアルミニウムを
含まないステンレスを使用した方が加工性が良いので好
ましい。ハニカム部の平板と波板はクラッド、メツキ、
蒸着又は合金化などによりアルミニウムを例えば０．５
重量幅以上含むステンレススチールを使用した方が拡散
接合が強固となるのでよい。As the heat-resistant metal, customary materials such as stainless steel can be used, for example. It is preferable to use stainless steel, which does not contain aluminum, for the outer cylinder because it has better workability. The flat plate and corrugated plate of the honeycomb part are clad, plated,
For example, 0.5 aluminum is deposited by vapor deposition or alloying.
It is better to use stainless steel that contains more than the weight range because diffusion bonding will be stronger.
外筒やハニカム部の大きさや形状は目的に応じて適宜選
択する。The size and shape of the outer cylinder and honeycomb portion are appropriately selected depending on the purpose.
ろう付けに使用するろう材はニッケル系ろう材などの慣
用のものであってよく、これ會ろう付けすべき部位に塗
布する。The brazing material used for brazing may be a conventional brazing material such as a nickel-based brazing material, and is applied to the area to be brazed.
ハニカム部における層とは、波板と平板とを対にしたも
の？言い、例えば最外周の波板とそのＰ３１）！！ｌの
平板とを対にしたものが最外周ｔ＝である。本発明にお
いて、数層とは５〜６層程度までを百９゜通常２〜３層
壕ででよい。それ故、通常例えば外側から２番目（及び
３番目）の層では波板とその層の平板及び前の層の平板
との接触部をろう付けする。又、この場合、ろう付けに
加えて拡散接合′に併用するとより一層強固に接合する
ことができるのでよい。外側から（３番目又は）４番目
以後の層では平板と波板との接着部は拡散接合のみによ
って接合する。Is the layer in the honeycomb part a pair of corrugated plate and flat plate? For example, the outermost corrugated plate and its P31)! ! The outermost periphery t= is the pair of the flat plates of 1 and 1. In the present invention, several layers may mean up to about 5 to 6 layers, usually 2 to 3 layers. Therefore, for example, in the second (and third) layer from the outside, the contacts between the corrugated sheet and the flat sheet of that layer and the flat sheet of the previous layer are usually brazed. Further, in this case, it is preferable to use diffusion bonding in addition to brazing, as this allows for even stronger bonding. In the (third or) fourth and subsequent layers from the outside, the adhesive portion between the flat plate and the corrugated plate is bonded only by diffusion bonding.
外面とハニカム部との間には応力が生ずるので、外筒を
アルミニウムを含まないステンレススチール製とした場
合には拡散接合では十分な接合強度が得られない。それ
故、ハニカム部と外局との接触部並ひにハニカム部の最
外周及びその近傍の層合わせて数層の平板お波板との接
触部をろう付けすることにより十分な接合強度を得る。Since stress is generated between the outer surface and the honeycomb portion, when the outer cylinder is made of stainless steel that does not contain aluminum, sufficient bonding strength cannot be obtained by diffusion bonding. Therefore, sufficient bonding strength can be obtained by brazing the contact area between the honeycomb part and the outer part, as well as the contact area with several layers of flat corrugated plates at the outermost periphery of the honeycomb part and its vicinity. .
又、排気ガス浄化用触媒として使用した場合、メタル担
体のハニカム部の外周部は排気ガスの流通量が中央ｓ１
ｔどには多くないため、外周部ケろう付けしても異常酸
化反応に起因するメタル担体の損傷が起らず、耐久性が
向上する。In addition, when used as an exhaust gas purification catalyst, the outer circumferential portion of the honeycomb portion of the metal carrier has a flow rate of exhaust gas at the center s1.
Since there is not a large amount of metal on the outer periphery, damage to the metal carrier due to abnormal oxidation reaction does not occur even if the outer peripheral portion is brazed, and durability is improved.
以下の実施例及び比較例において本発明を更に詳細に説
明する。なお、本発明は下記実施例に限定されるもので
はない。The present invention will be explained in further detail in the following Examples and Comparative Examples. Note that the present invention is not limited to the following examples.
アルミニウム５重量％を含むステンレス製の厚さ０．０
５ｍの平板２と同じ材料からなる波板３（凸の数：４個
／倒）とを重ねて巻回して、直径７０１Ｒ１１，高さ１
３０−のハニカム部１を製造し、これをステンレス族の
外径７５ＩＩＩ１１１内径７０ｍ。Made of stainless steel containing 5% aluminum by weight, thickness 0.0
A 5 m long flat plate 2 and a corrugated plate 3 made of the same material (number of protrusions: 4/fold) are layered and wound to form a material with a diameter of 701R11 and a height of 1.
A honeycomb part 1 of 30mm is manufactured, and is made of stainless steel with an outer diameter of 75III111 and an inner diameter of 70m.
高さ１３０＋ｍの外筒４１７３に挿入し友。次いで真空
炉中で１２００℃で６０分加熱保持することＫより拡散
接合した。次いでニッケル系ろう材ＢＮｉ−５（２０Ｃ
ｒ−１０Ｓｉ −ＢａｌＮｉ ）をハニカム部１と外筒
４との接触部５及び第１層〜第３層の平板２と波板３と
の接触部６，７．８に塗布しく端面から流下させる）、
真空炉中で１１５０〜１２００℃で５分間加熱し、ろう
付けしてメタル担体を得た。第１図は得られたメタル担
体を一端面側から見た図である。第２図は本発明の方法
によって得たメタル担体のろう付は部分を示す説明図で
ある。すなわち、第２図はメタル担体を長さ方向に沿っ
て切断した状態を示し、図中の斜線の部分がろう付は層
？である。第３図に第１図の部分拡大図を示す。外筒４
に対してハニカム部１の方が熱膨張係数が大きい場合、
拡散接合のみではハニカム部１が収縮し、第４図のよう
にハニカム部１の最外周部に応力が集中して接合部が剥
され隙間１０が生ずるか又は波板３の凸部が波状から三
角形状に変形してしまう。It can be inserted into the outer cylinder 4173 with a height of 130+m. Next, diffusion bonding was performed by heating and holding at 1200° C. for 60 minutes in a vacuum furnace. Next, nickel-based brazing filler metal BNi-5 (20C
r-10Si-BalNi) is applied to the contact portion 5 between the honeycomb portion 1 and the outer cylinder 4 and the contact portions 6, 7.8 between the flat plate 2 and the corrugated plate 3 of the first to third layers and allowed to flow down from the end face. ),
It was heated in a vacuum furnace at 1150-1200°C for 5 minutes and brazed to obtain a metal carrier. FIG. 1 is a view of the obtained metal carrier viewed from one end side. FIG. 2 is an explanatory diagram showing the brazing portion of the metal carrier obtained by the method of the present invention. In other words, Figure 2 shows the state in which the metal carrier is cut along its length, and the shaded area in the figure shows the brazing layer. It is. FIG. 3 shows a partially enlarged view of FIG. 1. Outer cylinder 4
If the coefficient of thermal expansion of honeycomb part 1 is larger than that of
If only diffusion bonding is used, the honeycomb part 1 will shrink, and stress will concentrate on the outermost periphery of the honeycomb part 1 as shown in FIG. It deforms into a triangular shape.
然して、外筒４とハニカム部１との接合部のみ全拡散接
合に加えてろう付けしても、ハニカム部１の収縮による
応力緩和はできないため、最外周波＆３と最外周平板２
の間で剥れる。第５図にメタル担体において、最外周及
びその近傍Ｉ曽２〜３層を拡散接合及びろう付けした場
合（本発明方法）と、拡散接合のみ又は外筒とハニカム
部とを拡散接合及びろう付けした場合（従来方法及び比
較方法）との、ハニカム部の層数と応力との関係を示す
。図から明らかなように、本発明方法によって得られた
メタル担体においては、応力は最外周層でも大きくは々
らないことが判る。However, even if only the joint part between the outer cylinder 4 and the honeycomb part 1 is soldered in addition to full diffusion bonding, stress relaxation due to the contraction of the honeycomb part 1 cannot be achieved.
It peels off in between. Figure 5 shows a case where the outermost periphery and 2 to 3 layers in the vicinity of the metal carrier are diffusion bonded and brazed (the method of the present invention), and a case where only diffusion bonding or the outer cylinder and the honeycomb portion are diffusion bonded and brazed. The relationship between the number of layers in the honeycomb part and the stress in the cases (conventional method and comparative method) is shown. As is clear from the figure, in the metal carrier obtained by the method of the present invention, stress does not increase significantly even in the outermost layer.
比較例１
実施例においてろう付けを行わなかったこと以外は同様
にしてメタル担体を得た。Comparative Example 1 A metal carrier was obtained in the same manner as in Example except that brazing was not performed.
比較例２
実施例における拡散接合及びろう付けを行う代りに、メ
タル担体の端面（−７面）においてのみ外筒４とハニカ
ム部１及びハニカム部１の平板２と波板３とをろう付け
してメタル担体を得た。Comparative Example 2 Instead of performing the diffusion bonding and brazing in the example, the outer cylinder 4 and the honeycomb part 1 and the flat plate 2 and the corrugated plate 3 of the honeycomb part 1 were brazed only on the end face (-7 face) of the metal carrier. A metal carrier was obtained.
く性能比奴試験〉
実施例及び比較例１及び２のメタル担体について下記条
件で連続高速試験（条件１）及び冷熱耐久試験（条件２
）？！−行った。Continuous high-speed test (condition 1) and cold/heat durability test (condition 2) for the metal carriers of Examples and Comparative Examples 1 and 2 under the following conditions.
)? ! -I went.
条件１：大ガス温度９５０℃で１８０時間保持条ｆ＋２
：常温から高？！ （ａ Ｓ Ｏ℃）まで入ガス温度を
変化させ、１サイクル３０分として
計５０口時間実施
結果を下記第１表に示す。Condition 1: Holding condition f+2 for 180 hours at large gas temperature of 950°C
: From normal temperature to high? ! The inlet gas temperature was varied up to (aSO°C), and one cycle was 30 minutes for a total of 50 mouths. The results are shown in Table 1 below.
第１表試験結果
第１表から明らかな如く、本発明の方法によって得られ
たメタル担体は耐久性が非常に優れている。Table 1 Test Results As is clear from Table 1, the metal carrier obtained by the method of the present invention has excellent durability.
上述の如く本発明のメタル担体の製造方法は、ハニカム
部と外筒との接触部並びにハニカム部の最外周及びその
近傍の噛合わせて数層の平板と波板との接触部をろう付
けし、ハニカム部の残りの層の平板と波板との接触部を
拡散接合するため、外筒とハニカム部及びハニカム部の
平板と波板とが強固に接合され耐久性が非常に向上した
メタル担体を容易に得ることができる。As described above, the method for manufacturing the metal carrier of the present invention involves brazing the contact area between the honeycomb part and the outer cylinder, as well as the contact area between several layers of flat plates and corrugated plates in mesh with each other at and near the outermost periphery of the honeycomb part. Since the contact area between the flat plate and the corrugated plate of the remaining layer of the honeycomb part is diffusion bonded, the outer tube and the honeycomb part and the flat plate of the honeycomb part and the corrugated plate are firmly joined, resulting in a metal carrier with greatly improved durability. can be easily obtained.
又、本発明の方法は特別な操作を必要とせず、従来の設
備や手法をそのまま適用できるので実用上有利である。Furthermore, the method of the present invention does not require any special operations and can be applied using conventional equipment and techniques, which is advantageous in practice.
第１図は本発明の方法によって得られたメタル担体の一
例の端面図、
第２図は本発明の方法におけるメタル担体のろう付は部
分を示す説明図、
第５図は第１囚のメタル担体の部分拡大図、第４図は比
較例の担体の第３図に相当する図、第５図は本発明方法
並びに従来方法及び比較方法によって得られ九メタル担
体のハニカム部の層数と応力との関係を表わす図である
。
図中、
１・・・ハニカム部 ２・・・平板 ３・・・波板４・
・・外筒 ５・・・接触部 ６，７．８・・・接触部９
・・・ろう付は層 １０・・・隙間第１
第３図
第５
第２
第４ 図Fig. 1 is an end view of an example of a metal carrier obtained by the method of the present invention, Fig. 2 is an explanatory diagram showing the brazing portion of the metal carrier in the method of the present invention, and Fig. 5 is an end view of an example of the metal carrier obtained by the method of the present invention. FIG. 4 is a partially enlarged view of the carrier; FIG. 4 is a diagram corresponding to FIG. 3 of the carrier of the comparative example; FIG. FIG. In the figure, 1...honeycomb part 2...flat plate 3...corrugated plate 4.
...Outer cylinder 5...Contact part 6,7.8...Contact part 9
... Brazing is a layer 10... Gap 1 Fig. 3 Fig. 5 Fig. 2 Fig. 4
Claims (1)
るハニカム部を、耐熱金属製の外筒に収納してなるメタ
ル担体を製造するにあたり、ハニカム部と外筒との接触
部並びにハニカム部の最外周及びその近傍の層合わせて
数層の平板と波板との接触部をろう付けし、ハニカム部
の残りの層の平板と波板との接触部を拡散接合すること
を特徴とするメタル担体の製造方法。In manufacturing a metal carrier in which a honeycomb part having a structure in which a flat plate made of heat-resistant metal and a corrugated plate are wound together in an outer cylinder made of heat-resistant metal is housed in an outer cylinder made of heat-resistant metal, the contact area between the honeycomb part and the outer cylinder, It is characterized by brazing the contact areas between several layers of flat plates and corrugated plates on the outermost periphery of the honeycomb part and its vicinity, and diffusion bonding the contact areas between the flat plates and corrugated plates of the remaining layers of the honeycomb part. A method for manufacturing a metal carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1006289A JP2639993B2 (en) | 1989-01-14 | 1989-01-14 | Manufacturing method of metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1006289A JP2639993B2 (en) | 1989-01-14 | 1989-01-14 | Manufacturing method of metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02187151A true JPH02187151A (en) | 1990-07-23 |
| JP2639993B2 JP2639993B2 (en) | 1997-08-13 |
Family
ID=11634230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1006289A Expired - Lifetime JP2639993B2 (en) | 1989-01-14 | 1989-01-14 | Manufacturing method of metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2639993B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395599A (en) * | 1991-08-01 | 1995-03-07 | Nippon Yakin Kogyo Co., Ltd. | Catalyst-carrying metallic carrier and production method thereof |
-
1989
- 1989-01-14 JP JP1006289A patent/JP2639993B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395599A (en) * | 1991-08-01 | 1995-03-07 | Nippon Yakin Kogyo Co., Ltd. | Catalyst-carrying metallic carrier and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2639993B2 (en) | 1997-08-13 |
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