JP3188770B2 - Manufacturing method of metal carrier - Google Patents
Manufacturing method of metal carrierInfo
- Publication number
- JP3188770B2 JP3188770B2 JP26039092A JP26039092A JP3188770B2 JP 3188770 B2 JP3188770 B2 JP 3188770B2 JP 26039092 A JP26039092 A JP 26039092A JP 26039092 A JP26039092 A JP 26039092A JP 3188770 B2 JP3188770 B2 JP 3188770B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- foil
- corrugated
- flat
- 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.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims description 25
- 229910052751 metal Inorganic materials 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000011888 foil Substances 0.000 claims description 76
- 238000004804 winding Methods 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 12
- 238000005219 brazing Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車排ガス浄化用触
媒を担持するためのメタル担体の製造方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a metal carrier for supporting a catalyst for purifying automobile exhaust gas.
【０００２】[0002]
【従来の技術】自動車の排ガスを浄化するための触媒を
担持する担体として、耐熱性のステンレス鋼の平らな箔
（平箔という）と波形加工した箔（波箔という）からな
るハニカム体を、耐熱金属製の外筒に収納したメタル担
体が広く実用されつつある。2. Description of the Related Art As a carrier for carrying a catalyst for purifying automobile exhaust gas, a honeycomb body made of heat-resistant stainless steel flat foil (referred to as flat foil) and corrugated foil (referred to as corrugated foil) is used. Metal carriers housed in a heat-resistant metal outer cylinder are being widely used.
【０００３】一般にハニカム体を構成する平箔と波箔
は、その接触部をロウ付けで接合しているが、ロウ材は
高価であり、担体コストを増加する。また、ロウ付けさ
れた部分はロウ材により箔が脆化する問題が生じたり、
ロウ材の分だけ熱容量が大きくなり浄化開始に時間がか
かる等の問題がある。[0003] Generally, the flat foil and the corrugated foil constituting the honeycomb body are joined at their contact portions by brazing, but the brazing material is expensive, which increases the carrier cost. In addition, the brazed portion may cause the foil to become brittle due to the brazing material,
There is a problem that the heat capacity is increased by the amount of the brazing material and it takes time to start purification.
【０００４】このような問題を無くするために、例えば
米国特許第４，３００，９５６号明細書に開示されてい
るように平箔−波箔の接触部分を拡散接合することが提
案されている。拡散接合する場合には、予め巻回した平
箔と波箔との接触が十分になされていなければならな
い。そのため特開平２−１４７４７号公報では、ハニカ
ム体を収納した外筒を二個のローラ間に通して絞り込み
（縮管量を当初径の０．５〜５％）した後、拡散接合す
る方法を開示している。In order to eliminate such a problem, it has been proposed to diffusely bond a flat foil-corrugated foil contact portion as disclosed in, for example, US Pat. No. 4,300,956. . In the case of diffusion bonding, sufficient contact must be made between the previously wound flat foil and corrugated foil. For this reason, Japanese Patent Application Laid-Open No. 2-14747 discloses a method in which an outer cylinder containing a honeycomb body is passed between two rollers and narrowed down (the amount of contraction is 0.5 to 5% of the initial diameter), and then diffusion bonding is performed. Has been disclosed.
【０００５】[0005]
【発明が解決しようとする課題】ハニカム体に外圧を加
えて構成する平箔と波箔との接触部面積を多くするため
には、平箔−波箔の接触部面圧をハニカム体外周から中
心まで確実に高める必要がある。しかし、前記特開平２
−１４７４７号公報のように縮管しただけでは、ハニカ
ム体外周近傍のみの面圧がアップするだけで中心部まで
到達しないか弱いままである。従って、この様な担体を
拡散接合した場合に中心部分に接合が不十分となり、使
用中にテレスコープ状の飛び出しが生じることがある。In order to increase the contact area between the flat foil and the corrugated foil formed by applying an external pressure to the honeycomb body, the contact pressure between the flat foil and the corrugated foil should be increased from the outer periphery of the honeycomb body. It is necessary to ensure that it is raised to the center. However, Japanese Patent Laid-Open No.
As described in JP-A-147747, only the surface pressure of the vicinity of the outer periphery of the honeycomb body is increased only by the contraction of the tube, and the tube does not reach the central portion or remains weak. Therefore, when such a carrier is diffusion-bonded, bonding at the center becomes insufficient, and telescopic projection may occur during use.
【０００６】本発明は、上記したような問題を解消する
ものであって、ハニカム体成形時平箔にバックテンショ
ンを付与しながら巻回することを併用し、さらに接触面
積が大きくなるような波箔形状とすることにより、拡散
接合に適したメタル担体の製造方法を提供することを目
的とする。The present invention solves the above-mentioned problem, and uses a combination of winding a flat foil while applying a back tension to form a honeycomb body and further increasing the contact area. An object of the present invention is to provide a method of manufacturing a metal carrier suitable for diffusion bonding by forming a foil shape.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明が要旨とするところは、ハニカム体成形ライン
において、平箔に１〜５kg／cmのバックテンションを付
与しながら波箔を重て渦巻状に巻回し、積層成形したハ
ニカム体を金属製外筒に収納してメタル担体とし、該メ
タル担体を縮径した後、ハニカム体の平箔−波箔の接触
部を拡散接合し、各波箔と平箔の接合長を０．６ｔ
（ｔ：平箔或いは波箔の薄い方の箔厚）以上とすると共
に、ハニカム体と外筒の必要部分を拡散接合或いはロウ
付けすることを特徴とするメタル担体の製造方法であ
る。前記波箔は平箔の接合長を０．６ｔ以上とするのに
台形波形に成形するのが好適であること、また、ハニカ
ム体を外筒に収納してなるメタル担体を、該担体の外周
を掴むごとくセグメントに収納し、かつセグメントと共
にダイスに引き込み或いは通過させることにより縮径
し、均等な面圧をハニカム体に付与することにも特徴が
ある。In order to achieve the above-mentioned object, the gist of the present invention is to provide a honeycomb body forming line in which a corrugated foil is applied while applying a back tension of 1 to 5 kg / cm to a flat foil. Spirally wound, the laminated honeycomb body is housed in a metal outer cylinder to form a metal carrier, and after reducing the diameter of the metal carrier, the flat foil-corrugated foil contact portion of the honeycomb body is diffusion-bonded, 0.6t bonding length between each corrugated foil and flat foil
(T: thickness of thinner flat foil or corrugated foil) or more, and diffusion bonding or brazing of a required portion of the honeycomb body and the outer cylinder is performed. The corrugated foil has a flat foil bonding length of 0.6t or more.
It is preferable to form the carrier into a trapezoidal waveform, and the metal carrier having the honeycomb body housed in the outer cylinder is housed in a segment as if the outer periphery of the carrier is grasped, and drawn or passed through the die together with the segment. It is also characterized in that the diameter is reduced and uniform surface pressure is applied to the honeycomb body.
【０００８】[0008]
【作用】本発明は平箔にバックテンションを付与しなが
ら波箔と共に巻回するのであるが、巻回開始当初、すな
わちハニカム体中心部分における平箔と波箔接触部の面
圧は張力に応じた大きさとなるが、図１に原理的に示し
たように面圧ｂは巻回積層数が多くなるに従って漸減
し、ハニカム体外周部近傍になると、非常に小さくな
り、拡散接合が不安定になってしまう状態になる。一方
ハニカム体を縮径すると、図１に示したように面圧ｃは
その外周近傍に顕著に向上するが、中心部になるにした
がって漸減する。この様にバックテンションと縮径によ
る面圧向上効果はハニカム体半径方向にそれぞれ逆の傾
向となることから、本発明はこの様な前記バックテンシ
ョンと縮径を併用することにより、ハニカム体半径方向
における面圧が、図１の線ａのように均一に確実になる
ようにする。According to the present invention, the flat foil is wound together with the corrugated foil while applying a back tension. At the beginning of the winding, that is, the contact pressure between the flat foil and the corrugated foil at the central portion of the honeycomb body depends on the tension. However, as shown in principle in FIG. 1, the surface pressure b gradually decreases as the number of wound laminations increases, and becomes very small near the outer peripheral portion of the honeycomb body, and the diffusion bonding becomes unstable. It becomes a state that becomes. On the other hand, when the diameter of the honeycomb body is reduced, the surface pressure c remarkably increases near the outer periphery as shown in FIG. 1, but gradually decreases toward the center. As described above, since the surface tension improving effect due to the back tension and the diameter reduction tends to be opposite to each other in the honeycomb body radial direction, the present invention uses such a back tension and the diameter reduction to use the honeycomb body radial direction. Is ensured uniformly as shown by line a in FIG.
【０００９】以下に本発明を詳細に説明する。図２は本
発明のハニカム体１を製造する概要の一例を示す説明図
である。平箔２は、Ｃｒ，Ａｌを含有する厚さほぼ５０
μｍの耐熱性ステンレス鋼であり、波箔３は、平箔を波
形に加工したものであり、図３に示すように台形波形に
形成し、山頂部を構成する平行部３ａは、平箔との接合
長さが０．６ｔ以上の平坦面を有するようにする。図２
に示すように平箔２に波箔３を重ねて渦巻き状に巻回
し、ハニカム体１を形成するのであるが、この際成形ラ
インに設けたブライドルロール等のバックテンション付
与装置４に平箔２を噛み込ませ、平箔２に１〜５kg／cm
のバックテンションを付与しながら巻き込んでいる。バ
ックテンションが１kg／cm未満では平箔と波箔戸の接触
面圧が不足し、十分な拡散接合が得られず、また５kg／
cmを超えると波箔が押し潰され形状不良になる。波箔３
の平行部３ａは拡散接合したときに、各接合部の接合長
が、０．６ｔ以上となるようにする。これは、実用時の
担体を調査した結果であり、０．６ｔ以上あれば周辺の
箔が破断しても、拡散接合部は健全であることが判明し
たからである。また、平箔にバックテンションを付与す
るのは、平箔２と波箔３の接触部における面圧を上げ、
波箔３の形状構成と相俟って接触率の大きいハニカム体
とするためである。Hereinafter, the present invention will be described in detail. FIG. 2 is an explanatory diagram showing an example of an outline of manufacturing the honeycomb body 1 of the present invention. The flat foil 2 has a thickness of about 50 containing Cr and Al.
The corrugated foil 3 is a flat foil processed into a corrugated shape, and is formed into a trapezoidal corrugated shape as shown in FIG. Has a flat surface with a joint length of 0.6t or more. FIG.
As shown in FIG. 1, the corrugated foil 3 is superposed on the flat foil 2 and spirally wound to form the honeycomb body 1. At this time, the flat foil 2 is attached to a back tension applying device 4 such as a bridle roll provided in a forming line. And put 1-5kg / cm on the flat foil 2.
It is involved while giving the back tension of. If the back tension is less than 1 kg / cm, the contact surface pressure between the flat foil and the corrugated door is insufficient, so that sufficient diffusion bonding cannot be obtained, and 5 kg / cm
If it exceeds cm, the corrugated foil will be crushed and the shape will be poor. Corrugated foil 3
When the parallel portions 3a are bonded by diffusion, the bonding length of each bonding portion is set to be 0.6t or more. This is a result of investigating the carrier at the time of practical use, and it has been found that if the thickness is 0.6 t or more, even if the peripheral foil is broken, the diffusion bonding portion is sound. The reason for applying the back tension to the flat foil is to increase the surface pressure at the contact portion between the flat foil 2 and the corrugated foil 3,
This is because the honeycomb body having a large contact ratio is combined with the shape and configuration of the corrugated foil 3.
【００１０】このようにして成形したハニカム体１は、
図４に示すように耐熱性ステンレス鋼などからなる外筒
５に収納してメタル担体６とする。この際外筒５の内径
はハニカム体１の外径よりやや大きくして装入しやすい
ようにすることが好ましい。本発明は、外筒と共にハニ
カム体を縮径し、外筒とハニカム体の密着度向上すると
共にハニカム体の平箔と波箔の接触面圧を向上した良好
な拡散接合を行う。縮径は種々の方法で実施できるが、
その一例を図５（ａ），（ｂ）に示す。すなわち油圧シ
リンダー７の作動によって小分割したセグメント８を、
ダイス９内に出入可能にした縮径装置であり、（ｂ）図
のようにダイス９より押し出して開いた状態のセグメン
ト８内部にメタル担体６を装入し、（ａ）のようにこの
セグメント９をダイス８内に引き込むことにより、ダイ
ス９内径にに沿って各セグメント８が閉じると共にメタ
ル担体６を均等に縮径する。The honeycomb body 1 thus formed is
As shown in FIG. 4, the metal carrier 6 is housed in an outer cylinder 5 made of heat-resistant stainless steel or the like. At this time, it is preferable that the inner diameter of the outer cylinder 5 is slightly larger than the outer diameter of the honeycomb body 1 so that the honeycomb body 1 can be easily inserted. The present invention reduces the diameter of the honeycomb body together with the outer cylinder, improves the adhesion between the outer cylinder and the honeycomb body, and performs good diffusion bonding in which the contact surface pressure between the flat foil and the corrugated foil of the honeycomb body is improved. The diameter can be reduced in various ways,
One example is shown in FIGS. 5 (a) and 5 (b). That is, the segment 8 subdivided by the operation of the hydraulic cylinder 7 is
This is a diameter reducing device which is capable of entering and exiting the die 9. The metal carrier 6 is inserted into the segment 8 which is pushed out of the die 9 and opened as shown in FIG. By drawing 9 into the die 8, each segment 8 is closed along the inner diameter of the die 9 and the diameter of the metal carrier 6 is reduced uniformly.
【００１１】このように本発明はバックテンション付与
と縮径によってハニカム体の平−波箔接触部の接触密度
を向上せしめ、かかる構成のメタル担体を非酸化性雰囲
気下で高温加熱して拡散接合することにより均一かつ高
密度の平−波箔接合部が得られる。As described above, according to the present invention, the contact density of the flat-corrugated foil contact portion of the honeycomb body is improved by applying the back tension and reducing the diameter, and the metal carrier having such a configuration is heated at a high temperature in a non-oxidizing atmosphere and diffusion bonded. By doing so, a uniform and high-density flat-corrugated foil joint can be obtained.
【００１２】[0012]
【実施例】以下の方法で外径１００mm、長さ１００mmの
メタル担体を製造した。平箔は耐熱性のＳＵＳ鋼よりな
り、幅１００mm、厚さ５０μｍであり、波箔は平箔を波
形に成形し、波高さ１．２mm、波ピッチ２．４mmとし
た。外筒は耐熱ＳＵＳ製であり、長さ１００mm、厚さ
１．５mm、外径１０１．８mm（内径９８．８mm）の円筒
とした。EXAMPLE A metal carrier having an outer diameter of 100 mm and a length of 100 mm was manufactured by the following method. The flat foil was made of heat-resistant SUS steel and had a width of 100 mm and a thickness of 50 μm. The corrugated foil was formed by shaping a flat foil into a corrugated shape having a wave height of 1.2 mm and a wave pitch of 2.4 mm. The outer cylinder was made of heat-resistant SUS, and was a cylinder having a length of 100 mm, a thickness of 1.5 mm, and an outer diameter of 101.8 mm (inner diameter of 98.8 mm).
【００１３】上記平箔と波箔とを重ね一軸の回りに巻回
しハニカム体を形成した。この際、平箔に２kg／cmのバ
ックテンションを付与した。ハニカム体の直径が９８．
５mm相当になったとき、巻回を停止し、平箔のみを一周
させた後、そのラップ部を抵抗溶接で固定した。ハニカ
ム体を外筒に挿入した後（上記寸法にしたため、ハニカ
ム体を外筒に挿入するのはスムースに行えた。）、図５
に示す縮管装置により外筒外径で１．８mm縮径した。こ
れによりハニカム体は実質的に１．５mm縮径され中心か
ら外周まで必要な面圧を付与できた。The flat foil and the corrugated foil were overlapped and wound around one axis to form a honeycomb body. At this time, a back tension of 2 kg / cm was applied to the flat foil. The diameter of the honeycomb body is 98.
When the length became equivalent to 5 mm, the winding was stopped, and only the flat foil was rotated once, and then the wrap was fixed by resistance welding. After the honeycomb body was inserted into the outer cylinder (since the dimensions were set as described above, the honeycomb body could be smoothly inserted into the outer cylinder). FIG.
The outer diameter of the outer cylinder was reduced by 1.8 mm using the tube reducing device shown in (1). As a result, the diameter of the honeycomb body was reduced substantially by 1.5 mm, and a required surface pressure was applied from the center to the outer periphery.
【００１４】次に本担体を真空度１０-4torr、温度１２
５０℃、時間一時間で熱処理（拡散接合）した。ハニカ
ム体の接合状態を調査した結果、接合率９０％以上と良
好であり、エンジンによる各種耐久試験に合格した。Next, the carrier was heated to a degree of vacuum of 10 -4 torr and a temperature of 12
Heat treatment (diffusion bonding) was performed at 50 ° C. for one hour. As a result of examining the joining state of the honeycomb body, the joining rate was as good as 90% or more, and passed various endurance tests using an engine.
【００１５】[0015]
【発明の効果】以上説明したように、本発明は平箔にバ
ックテンションを付与しながらハニカム体を形成し、こ
のハニカム体を外筒に挿入して縮径することによってハ
ニカム体の平−波箔接触部の接触密度を向上せしめ、か
かる構成のメタル担体を真空中で高温加熱して拡散接合
することにより均一かつ高密度の平−波箔接合部を得る
事ができる。As described above, according to the present invention, a honeycomb body is formed while applying back tension to a flat foil, and the honeycomb body is inserted into an outer cylinder to reduce the diameter, thereby reducing the flat wave of the honeycomb body. A uniform and high-density flat-wave foil joint can be obtained by increasing the contact density of the foil contact portion and performing diffusion bonding by heating the metal carrier having such a configuration at a high temperature in a vacuum.
【図１】本発明のハニカム体への面圧付与の概念説明
図。FIG. 1 is a conceptual explanatory view of applying a surface pressure to a honeycomb body of the present invention.
【図２】本発明のハニカム体製造例の説明図。FIG. 2 is an explanatory view of a honeycomb body manufacturing example of the present invention.
【図３】本発明の波箔形状に一例を示す説明図。FIG. 3 is an explanatory view showing an example of a corrugated foil shape according to the present invention.
【図４】本発明メタル担体の斜視図。FIG. 4 is a perspective view of the metal carrier of the present invention.
【図５】本発明を実施するための縮管装置の一例を示す
説明概要図であって、（ａ）は全体斜視図、（ｂ）は一
部の拡大斜視図。FIGS. 5A and 5B are schematic diagrams illustrating an example of a contraction apparatus for carrying out the present invention, wherein FIG. 5A is an overall perspective view, and FIG.
１：ハニカム体 ２：平箔 ３：波箔 ３ａ：平行部 ４：バックテンション付与装置 ５：外筒 ６：メタル担体 ７：油圧シリンダー ８：セグメント ９：ダイス 1: Honeycomb body 2: Flat foil 3: Corrugated foil 3a: Parallel part 4: Back tension applying device 5: Outer cylinder 6: Metal carrier 7: Hydraulic cylinder 8: Segment 9: Dice
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−180839（ＪＰ，Ａ) 特開 平２−268834（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 38/74 B01D 53/86 B01D 53/94 F01N 3/28 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-180839 (JP, A) JP-A-2-268834 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01J 21/00-38/74 B01D 53/86 B01D 53/94 F01N 3/28
Claims (3)
１〜５kg／cmの張力を付与しながら波箔を重て渦巻状に
巻回し、積層成形したハニカム体を金属製外筒に収納し
てメタル担体とし、該メタル担体を縮径した後、ハニカ
ム体の平箔−波箔の接触部を拡散接合し、各波箔と平箔
の接合長を０．６ｔ（ｔ：平箔或いは波箔の薄い方の箔
厚）以上とすると共に、ハニカム体と外筒の必要部分を
拡散接合或いはロウ付けすることを特徴とするメタル担
体の製造方法。In a honeycomb body forming line, a corrugated foil is wound in a spiral shape while applying a tension of 1 to 5 kg / cm to a flat foil, and the laminated honeycomb body is housed in a metal outer cylinder. After reducing the diameter of the metal carrier, the contact portion between the flat foil and the corrugated foil of the honeycomb body is diffusion-bonded, and the joining length between each corrugated foil and the flat foil is 0.6t (t: flat foil or corrugated foil). And a required portion of the honeycomb body and the outer cylinder are diffusion-bonded or brazed.
１〜５kg／cmの張力を付与しながら台形波形に形成した
波箔を重て渦巻状に巻回し、積層成形したハニカム体を
金属製外筒に収納してメタル担体とし、該メタル担体を
縮径した後、ハニカム体の平箔−波箔の接触部を拡散接
合し、各波箔と平箔の接合長を０．６ｔ（ｔ：平箔或い
は波箔の薄い方の箔厚）以上とすると共に、ハニカム体
と外筒の必要部分を拡散接合或いはロウ付けすることを
特徴とするメタル担体の製造方法。2. A honeycomb body formed by laminating a trapezoidal corrugated foil while applying a tension of 1 to 5 kg / cm to a flat foil in a honeycomb body forming line and spirally winding the laminate. Is stored in a metal outer cylinder to form a metal carrier, and after reducing the diameter of the metal carrier, the flat foil-corrugated foil contact portion of the honeycomb body is diffusion-bonded, and the bonding length between each corrugated foil and the flat foil is set to 0. A method for producing a metal carrier, wherein the required thickness of the honeycomb body and the outer cylinder is diffusion-bonded or brazed while the thickness is 6t (t: the thinner of the flat foil or the corrugated foil).
担体を、該担体の外周を掴むごとくセグメントに収納
し、かつセグメントと共にダイスに引き込み或いは通過
させることにより縮径し、均等な面圧をハニカム体に付
与することを特徴とする請求項１および２記載のメタル
担体の製造方法。3. A metal carrier comprising a honeycomb body housed in an outer cylinder is housed in a segment as if gripping the outer periphery of the carrier, and the diameter is reduced by being drawn or passed together with the segment into a die, so that a uniform surface pressure is achieved. the process according to claim 1 and 2 Symbol placement of the metal carrier, characterized in that applied to the honeycomb body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26039092A JP3188770B2 (en) | 1992-09-29 | 1992-09-29 | Manufacturing method of metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26039092A JP3188770B2 (en) | 1992-09-29 | 1992-09-29 | Manufacturing method of metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06106071A JPH06106071A (en) | 1994-04-19 |
| JP3188770B2 true JP3188770B2 (en) | 2001-07-16 |
Family
ID=17347258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26039092A Expired - Lifetime JP3188770B2 (en) | 1992-09-29 | 1992-09-29 | Manufacturing method of metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3188770B2 (en) |
-
1992
- 1992-09-29 JP JP26039092A patent/JP3188770B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06106071A (en) | 1994-04-19 |
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