JPH06271904A - Porous metal - Google Patents
Porous metalInfo
- Publication number
- JPH06271904A JPH06271904A JP5060748A JP6074893A JPH06271904A JP H06271904 A JPH06271904 A JP H06271904A JP 5060748 A JP5060748 A JP 5060748A JP 6074893 A JP6074893 A JP 6074893A JP H06271904 A JPH06271904 A JP H06271904A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- resin
- porous metal
- foamed resin
- cylindrical
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 72
- 239000002184 metal Substances 0.000 title claims abstract description 72
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000011347 resin Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 12
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 12
- 239000002612 dispersion medium Substances 0.000 claims abstract description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 4
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 14
- 150000004706 metal oxides Chemical class 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 4
- 229920001247 Reticulated foam Polymers 0.000 claims 2
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 3
- 239000003085 diluting agent Substances 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- 239000011496 polyurethane foam Substances 0.000 abstract description 3
- 229910052703 rhodium Inorganic materials 0.000 abstract description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001568 phenolic resin Polymers 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 13
- 238000010304 firing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000011148 porous material Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Catalysts (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばガスあるいは液
体を処理するフィルター、触媒、触媒用担体等に用いら
れる多孔金属であって、使用に際して切断等の成形加工
を行うことなく使用できる多孔金属に関する。FIELD OF THE INVENTION The present invention relates to a porous metal used for, for example, a filter for treating gas or liquid, a catalyst, a carrier for a catalyst, etc., which can be used without cutting or other forming process when used. Regarding
【０００２】[0002]
【従来の技術】多孔金属の製造に関しては、発泡樹脂の
骨格表面を導電化処理し、その上に電気メッキにより金
属を電析させ、その後発泡樹脂を焼成して、発泡樹脂の
樹脂分を消失させ、電析させた金属を焼結させる方法
（特開昭５７−１７４４８４号）がある。2. Description of the Related Art Regarding the production of a porous metal, the skeleton surface of a foamed resin is subjected to a conductive treatment, the metal is electrodeposited on the skeleton surface, and then the foamed resin is baked to eliminate the resin content of the foamed resin. Then, there is a method of sintering the electrodeposited metal (JP-A-57-174484).
【０００３】しかし、この方法は、発泡樹脂の骨格表面
の導電化処理が煩雑であり、また、多孔金属のポア（空
孔）の骨格は空洞のある骨格となるために骨格が折れ易
くポアの目詰りが多い。In this method, however, the surface treatment of the skeleton of the foamed resin is complicated, and since the skeleton of the pores (pores) of the porous metal is a skeleton with cavities, the skeleton easily breaks. There are many clogging.
【０００４】同時に、導電化処理された発泡樹脂の骨格
に電気メッキにより金属を電析させる方法であるため、
導電化処理された発泡樹脂の表層部と中心部とで、金属
電析量に差が生じ、その結果、製造された多孔金属の表
層部と中心部とで骨格の太さに差が生じ、特に中心部が
細い骨格となる。At the same time, a method of electroplating a metal on the skeleton of the foamed resin which has been subjected to the conductivity treatment by electroplating,
In the surface layer portion and the central portion of the foamed resin subjected to the electroconductivity treatment, a difference occurs in the amount of metal electrodeposition, and as a result, a difference in the thickness of the skeleton occurs between the surface layer portion and the central portion of the manufactured porous metal, Especially, the central part has a thin skeleton.
【０００５】特開昭５７−１７４４８４号は多孔金属の
形状については特に述べていないが、上記の如くこの方
法で製造された多孔金属は均質性の点で問題があり、表
層部と中心部との骨格の太さの差が小さくなる肉薄のシ
ート状多孔金属に限定される。Japanese Unexamined Patent Publication (Kokai) No. 57-174484 does not particularly mention the shape of the porous metal, but the porous metal produced by this method has a problem in terms of homogeneity as described above, and thus the surface layer portion and the central portion are not formed. It is limited to a thin sheet-like porous metal in which the difference in skeleton thickness becomes small.
【０００６】[0006]
【発明が解決しようとす課題】図１は、ガスあるいは液
体を処理するフィルター、触媒、触媒担体等（以下触媒
等と略記する）を内蔵した配管の例の説明図で、１は配
管、２は触媒等、３は外筒、４は網等である。ガスある
いは液体は矢印方向に流れる。図１(Ａ)は円柱状の触媒
を配管内部に挿入した例、図１(Ｂ)は円筒状の触媒等を
内筒３内に収納した例、４は直径の異なる２種類の球状
の触媒等を網４で保持して配管内部に収納した例であ
る。FIG. 1 is an explanatory view of an example of a pipe containing a filter for treating a gas or a liquid, a catalyst, a catalyst carrier, etc. (hereinafter abbreviated as a catalyst), in which 1 is a pipe and 2 is a pipe. Is a catalyst or the like, 3 is an outer cylinder, and 4 is a net or the like. Gas or liquid flows in the direction of the arrow. FIG. 1 (A) is an example in which a cylindrical catalyst is inserted into the pipe, FIG. 1 (B) is an example in which a cylindrical catalyst or the like is housed in the inner cylinder 3, and 4 is two types of spherical catalysts having different diameters. In this example, the nets 4 are held by the net 4 and stored inside the pipe.
【０００７】図１の触媒等を内蔵した配管は、例えば自
動車の排ガス配管として、あるいは例えば上水の浄化配
管として使用する事ができる。自動車の排ガス配管や上
水の浄化配管は多量生産されるために、図１の触媒等
も、同じ寸法の円柱状あるいは円筒状あるいは球状のも
のが多量必要となる。The pipe containing the catalyst shown in FIG. 1 can be used, for example, as an exhaust gas pipe of an automobile or as a purification pipe of clean water. Since a large amount of exhaust gas pipes and clean water purification pipes for automobiles are produced, a large amount of columnar, cylindrical, or spherical catalysts of the same size are required for the catalyst and the like in FIG.
【０００８】多孔金属は触媒等として使用できるが、従
来の多孔金属は主として板状であり、かつ切断等に際し
て工具の摩耗が大きい。このため、従来の板状の多孔金
属を用いて、同じ寸法の多量の円柱状、円筒状あるいは
球状の多孔金属製の触媒等を製造する事は難しい。The porous metal can be used as a catalyst or the like, but the conventional porous metal is mainly plate-shaped, and the tool is greatly worn during cutting or the like. For this reason, it is difficult to manufacture a large amount of columnar, cylindrical or spherical porous metal catalysts having the same size using a conventional plate-shaped porous metal.
【０００９】本発明は、使用に際して切断等の成形加工
を必要としないで、そのまゝ触媒等として使用できる多
孔金属の提供を課題としている。An object of the present invention is to provide a porous metal that can be used as a catalyst or the like without requiring a forming process such as cutting upon use.
【００１０】[0010]
【課題を解決するための手段】本発明の第１の多孔金属
は、円柱状の網目状発泡樹脂に、平均粒径が１〜１５μ
ｍの金属粉末または金属酸化物粉末に分散媒を加えて作
成した粘度が５０〜１０００ｃｐのスラリーを塗着含浸
させたのち、乾燥し、水分およびまたは炭酸ガスを含む
水素雰囲気で焼成し、発泡樹脂を消失させ、塗着含浸さ
せたスラリー中の金属分を焼結させて形成した円柱状の
多孔金属である。The first porous metal of the present invention is a cylindrical resin mesh having an average particle size of 1 to 15 μm.
m metal powder or metal oxide powder to which a dispersion medium is added, and a slurry having a viscosity of 50 to 1000 cp is applied and impregnated, followed by drying and firing in a hydrogen atmosphere containing water and / or carbon dioxide gas to obtain a foamed resin. Is a columnar porous metal formed by sintering the metal component in the slurry impregnated by coating.
【００１１】また本発明の第２の多孔金属は、円筒状の
網目状発泡樹脂に、平均粒径が１〜１５μｍの金属粉末
または金属酸化物粉末に分散媒を加えて作成した粘度が
５０〜１０００ｃｐのスラリーを塗着含浸させたのち、
乾燥し、水分およびまたは炭酸ガスを含む水素雰囲気で
焼成し、発泡樹脂を消失させ塗着含浸させたスラリー中
の金属分を焼結させて形成した円筒状の多孔金属であ
る。The second porous metal of the present invention has a viscosity of 50 to 50, which is prepared by adding a dispersion medium to a metal powder or metal oxide powder having an average particle diameter of 1 to 15 μm in a cylindrical mesh resin foam. After coating and impregnating with 1000 cp of slurry,
It is a cylindrical porous metal formed by drying, firing in a hydrogen atmosphere containing water and / or carbon dioxide gas, erasing the foamed resin, and sintering the metal component in the slurry impregnated by coating.
【００１２】また本発明の第３の多孔金属は、球状の網
目状発泡樹脂に、平均粒径が１〜１５μｍの金属粉末ま
たは金属酸化物粉末に分散媒を加えて作成した粘度が５
０〜１０００ｃｐのスラリーを塗着含浸させたのち、乾
燥し、水分およびまたは炭酸ガスを含む水素雰囲気で焼
成し、発泡樹脂を消失させ塗着含浸させたスラリー中の
金属分を焼結させて形成した球状の多孔金属である。The third porous metal of the present invention has a viscosity of 5 made by adding a dispersion medium to a metal powder or a metal oxide powder having an average particle diameter of 1 to 15 μm in a spherical network foamed resin.
Formed by coating and impregnating the slurry of 0 to 1000 cp, then drying and firing in a hydrogen atmosphere containing water and / or carbon dioxide gas to eliminate the foamed resin and sinter the metal component in the coating-impregnated slurry. It is a spherical porous metal.
【００１３】また本発明の第４の多孔金属は、金属粉末
または金属酸化物粉末の金属分が、Ｎｉ，Ｃｒ，Ｃｕ，
Ｍｏ，Ｖ，Ａｇ，Ａｕ，Ｐｔ，Ｍｎ，Ｆｅ，Ｗ，Ｃｏ，
Ｐｄ，Ｒｈ，Ｔｉから選ばれる１種または２種以上であ
る事を特徴とする、前記１、または２、または３、また
は４に記載の多孔金属である。In the fourth porous metal of the present invention, the metal content of the metal powder or the metal oxide powder is Ni, Cr, Cu,
Mo, V, Ag, Au, Pt, Mn, Fe, W, Co,
The porous metal according to 1 or 2 or 3 or 4 above, which is one or more selected from Pd, Rh and Ti.
【００１４】本発明の多孔金属は、形が円柱状、円筒状
あるいは球状であり、使用に際して切断等の成形加工を
行うことなく、図１に例示した触媒等として使用するこ
とができる。The porous metal of the present invention has a cylindrical shape, a cylindrical shape or a spherical shape, and can be used as the catalyst and the like illustrated in FIG. 1 without using a forming process such as cutting at the time of use.
【００１５】本発明者等の知見によると、直径が２０ｍ
ｍ以上の例えば直径が２０ｍｍ〜１００ｍｍの円柱状、
円筒状あるいは球状の多孔金属は、製造方法に格別の工
夫を行わない場合は、多孔金属の空孔の大きさが不揃い
になり易く、空孔を形成している骨格の太さが不揃いに
なり易く、また炭素含有量が高い多孔金属となるという
問題点がある。According to the knowledge of the present inventors, the diameter is 20 m.
m or more, for example, a cylindrical shape having a diameter of 20 mm to 100 mm,
For cylindrical or spherical porous metal, if the manufacturing method is not specially devised, the pores of the porous metal tend to be uneven in size, and the skeleton forming the pores also becomes uneven in thickness. There is a problem that the porous metal is easy and has a high carbon content.
【００１６】本発明では、平均粒径が１〜１５μｍの金
属粉末または金属酸化物粉末に分散媒を加えて作成した
粘度が５０〜１０００ｃｐスラリーを用い、また、水分
およびまたは炭酸ガスを含む水素雰囲気で焼成し発泡樹
脂を消失させ金属分を焼結させる。以下に本発明の製造
方法の限定理由を説明する。In the present invention, a slurry having a viscosity of 50 to 1000 cp prepared by adding a dispersion medium to a metal powder or a metal oxide powder having an average particle size of 1 to 15 μm is used, and a hydrogen atmosphere containing water and / or carbon dioxide gas is used. Is fired at, the foamed resin disappears and the metal component is sintered. The reasons for limiting the manufacturing method of the present invention will be described below.
【００１７】[0017]
【作用】本発明の多孔金属の製造方法について説明す
る。本発明では平均粒径１〜１５μｍで好ましくは最小
粒径が０.１μｍ、最大粒径が３０μｍの、Ｎｉ，Ｃ
ｒ，Ｃｕ，Ｍｏ，Ｖ，Ａｇ，Ａｕ，Ｐｔ，Ｍｎ，Ｆｅ，
Ｗ，Ｃｏ，Ｐｄ，Ｒｈ，Ｔｉの群から選ばれる少なくと
も１種もしくは２種以上の金属粉末または金属酸化物粉
末と、分散媒として好ましくは粘度が１０〜１００００
ｃｐの液状フェノール樹脂と希釈剤と必要により増粘剤
を用いて、粘度５０〜１０００ｃｐのスラリー液を形成
し、このスラリー液に、目的とする形状に加工した網目
状発泡樹脂を浸漬し、スラリー液を網目状発泡樹脂に含
浸塗着させる。The function of the present invention for producing a porous metal will be described. In the present invention, the average particle size is 1 to 15 μm, preferably the minimum particle size is 0.1 μm and the maximum particle size is 30 μm.
r, Cu, Mo, V, Ag, Au, Pt, Mn, Fe,
At least one kind or two or more kinds of metal powder or metal oxide powder selected from the group of W, Co, Pd, Rh, and Ti, and the dispersion medium preferably has a viscosity of 10 to 10,000.
A cp liquid phenolic resin, a diluent and, if necessary, a thickening agent are used to form a slurry liquid having a viscosity of 50 to 1000 cp, and the mesh foamed resin processed into a desired shape is immersed in the slurry liquid to form a slurry. A liquid foam resin is impregnated with the liquid.
【００１８】なお、上記網目状発泡樹脂としては、ポリ
ウレタンフォームが最も一般的に用いられるが、他にシ
リコーン樹脂、ポリエステル樹脂のフォームなどを用い
ることができる。Polyurethane foam is most commonly used as the reticulated foamed resin, but silicone resin, polyester resin foam or the like may be used.
【００１９】本発明において、上記粉末の平均粒径が１
μｍより小さくまた最小粒径が０.１μｍより小さい
と、スラリー液を形成する際に粒子が凝集するため、ス
ラリー液の均一性が保ち難く、スラリー液を網目状発泡
樹脂に含浸塗着させる際に均一な厚みで発泡樹脂に塗着
させ難い。また、平均粒径が１５μｍ超の粉末でまた最
大粒径が３０μｍ超の粉末は、焼成に際して焼結性が悪
い。このため、本発明では平均粒径が１μｍ〜１５μｍ
の金属粉末等を用いる。In the present invention, the average particle size of the powder is 1
If the particle size is smaller than μm and the minimum particle size is smaller than 0.1 μm, the particles agglomerate when forming the slurry liquid, so that it is difficult to maintain the uniformity of the slurry liquid, and when the slurry liquid is impregnated and applied to the reticulated foamed resin. It is difficult to apply it to the foamed resin with a uniform thickness. Further, powders having an average particle size of more than 15 μm and powders having a maximum particle size of more than 30 μm have poor sinterability during firing. Therefore, in the present invention, the average particle size is 1 μm to 15 μm.
The metal powder, etc. of
【００２０】スラリー液の粘度は、５０ｃｐ未満では、
スラリー液中の粉末が短時間で沈降するため、網目状発
泡樹脂に塗着する粉末量が少なくなり、焼成後の多孔金
属の骨格が細くなり、強度が低下する。一方、粘度が１
０００ｃｐを超えると、スラリーの粘度が高くなり過
ぎ、網目状発泡樹脂に粉末を均一に付着することができ
ない。When the viscosity of the slurry liquid is less than 50 cp,
Since the powder in the slurry liquid settles in a short time, the amount of powder applied to the reticulated foamed resin becomes small, the skeleton of the porous metal after firing becomes thin, and the strength decreases. On the other hand, the viscosity is 1
If it exceeds 000 cp, the viscosity of the slurry becomes too high, and the powder cannot be uniformly attached to the reticulated foamed resin.
【００２１】本発明ではスラリーを塗着した発泡樹脂を
乾燥し、焼成することにより樹脂分を熱分解消失させ、
塗着した粉末金属分を焼結作用により相互に結合させて
網目状構造を有する金属を製造する。In the present invention, the foamed resin coated with the slurry is dried and fired to thermally decompose and eliminate the resin component,
The powdered metal components that have been applied are combined with each other by a sintering action to produce a metal having a network structure.
【００２２】以上述べた方法で多孔金属を製造すると、
直径が２０ｍｍ以上の例えば直径２０ｍｍ〜１００ｍｍ
の円柱状、円筒状あるいは球状の多孔金属の場合にも、
空孔の大きさや骨格の大きさが揃い、炭素等の不純物の
含有量も少なく、触媒等に使用して好ましい多孔金属と
なる。以上本発明では、円柱状、円筒状および球状の多
孔金属を製造するが、本発明と同様の手段で、発泡樹脂
として、欠球、裁頭円柱、裁頭中空円柱、多角柱、裁頭
多角柱、多角錐、裁頭多角錐、円錐、裁頭円錐、円環、
多面体の形状を用いると、発泡樹脂の形状に見合った形
状の、最大肉厚部が２０ｍｍ以上の例えば２０ｍｍ〜１
００ｍｍの多孔金属を製造する事もできる。When a porous metal is produced by the method described above,
Diameter is 20 mm or more, for example, diameter 20 mm to 100 mm
In the case of cylindrical, cylindrical or spherical porous metal of
The size of the pores and the size of the skeleton are uniform, the content of impurities such as carbon is small, and it is a preferable porous metal to be used for a catalyst or the like. In the present invention as described above, columnar, cylindrical and spherical porous metals are produced, but in the same manner as in the present invention, as the foamed resin, there are missing spheres, truncated cylinders, truncated hollow cylinders, polygonal columns, and truncated cylinders. Prism, polygonal cone, truncated polygonal cone, cone, truncated cone, annulus,
When the shape of the polyhedron is used, the maximum wall thickness of the shape corresponding to the shape of the foamed resin is 20 mm or more, for example, 20 mm to 1
It is also possible to produce a 00 mm porous metal.
【００２３】[0023]
【実施例】−１ 本発明者等はニッケルの粉末と、液状のフェノール樹脂
と、イソプロピルアルコール（希釈剤）と、カルボキシ
メチルセルローズ５％溶液（増粘剤）を用いて、スラリ
ー液を作成し、直径４０ｍｍ高さが１００ｍｍの円柱状
のポリウレタンフォーム（ブリジストン化成製）にこの
スラリーを塗着含浸させて、室温で通風下で約２時間乾
燥後、水素気流中６５０℃で１０分間焼成した後、更に
水素気流中１０５０℃にて１５分間焼成する事により、
円柱状の多孔金属を製造した。[Examples] -1 The present inventors prepared a slurry liquid using nickel powder, a liquid phenol resin, isopropyl alcohol (diluent), and a carboxymethyl cellulose 5% solution (thickener). A cylindrical polyurethane foam having a diameter of 40 mm and a height of 100 mm (manufactured by Bridgestone Chemical Co., Ltd.) was coated and impregnated with the slurry, dried at room temperature under ventilation for about 2 hours, and then baked in a hydrogen stream at 650 ° C. for 10 minutes. By firing at 1050 ° C for 15 minutes in a hydrogen stream,
A cylindrical porous metal was produced.
【００２４】表１で番号１〜８は本発明の実施例であ
る。本発明の方法で製造した多孔金属は、均一な空孔を
有する三次元網目状構造を有し、発泡樹脂の痕跡となる
空洞はなく、触媒等として十分な強度と均一な空孔分布
を有していた。In Table 1, the numbers 1 to 8 are examples of the present invention. The porous metal produced by the method of the present invention has a three-dimensional network structure having uniform pores, does not have cavities that are traces of foamed resin, and has sufficient strength as a catalyst and a uniform pore distribution. Was.
【００２５】表１で番号９〜１５は比較例である。比較
例の多孔金属は目塞りが多くあるいは強度は１ｋｇ／１
ｃｍ以下であり、触媒等として不十分な強度であった。The numbers 9 to 15 in Table 1 are comparative examples. The porous metal of the comparative example has many clogging or strength of 1 kg / 1
cm or less, and the strength was insufficient as a catalyst or the like.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【実施例】−２ 本発明者等は、実施例１の番号５と同じスラリーと、半
径５０ｍｍの球状の発泡性樹脂を用いて球状の多孔金属
を作成した。尚焼成時の雰囲気として水素と炭酸ガスの
乾燥混合ガスを用いた。Example-2 The present inventors made a spherical porous metal by using the same slurry as the number 5 in Example 1 and a spherical foamable resin having a radius of 50 mm. A dry mixed gas of hydrogen and carbon dioxide was used as the atmosphere during firing.
【００２８】表２の番号１６の如く炭酸ガスを混合しな
いものは、残留する炭素が多く出来上った多孔金属のＣ
分析値が高い。番号１７にみられる如く焼成時間を大幅
に延長すればＣ分析値は低くなるが、コスト面で焼成時
間の延長は好ましくない。本発明である番号１８および
番号１９の如く、炭酸ガス量を１０〜５０％の範囲で混
合した水素ガスを焼成雰囲気に用いると、短い焼成時間
でも多孔金属のＣ分析値は低い。かつ引張試験の結果を
みると、比較例と比べると２倍以上の強度を示してい
る。しかし５０％以上の炭酸ガスを混合した水素ガスを
用いた番号２０のものはＣ分析値は低いが、水素量が少
ないために焼結が十分に行われず、多孔金属を製造する
事ができなかった。As shown by No. 16 in Table 2, those not mixed with carbon dioxide gas have a large amount of residual carbon, C of porous metal.
The analysis value is high. If the firing time is significantly extended as shown in No. 17, the C analysis value will be low, but the extension of the firing time is not preferable in terms of cost. When hydrogen gas mixed with a carbon dioxide gas amount in the range of 10 to 50% is used in the firing atmosphere as in the case of No. 18 and No. 19 of the present invention, the C analysis value of the porous metal is low even for a short firing time. In addition, the result of the tensile test shows that the strength is more than twice that of the comparative example. However, No. 20 using hydrogen gas mixed with 50% or more carbon dioxide gas has a low C analysis value, but since the amount of hydrogen is small, sintering is not sufficiently performed and porous metal cannot be produced. It was
【００２９】[0029]
【表２】 [Table 2]
【００３０】[0030]
【発明の効果】以上のように、本発明によれば、フィル
ター、触媒、触媒用担体等として、その設置場所、使用
目的に合った形状を有し、しかも表層部と中心部との骨
格の太さに差がない、均質性に優れた網目状構造の多孔
金属を得ることができる。As described above, according to the present invention, a filter, a catalyst, a carrier for a catalyst, etc., having a shape suitable for the place of installation and the purpose of use, and having a skeleton of the surface layer portion and the central portion. It is possible to obtain a porous metal having a uniform mesh structure with no difference in thickness.
【図１】は触媒等を内蔵した配管の例の説明図。FIG. 1 is an explanatory diagram of an example of piping containing a catalyst and the like.
Claims (4)
〜１５μｍの金属粉末または金属酸化物粉末に分散媒を
加えて作成した粘度が５０〜１０００ｃｐのスラリーを
塗着含浸させたのち、乾燥し、水分およびまたは炭酸ガ
スを含む水素雰囲気で焼成し、発泡樹脂を消失させ金属
分を焼結させて形成した事を特徴とする、円柱状の多孔
金属。1. A cylindrical reticulated foamed resin having an average particle size of 1
~ 15 μm metal powder or metal oxide powder with a dispersion medium added to create a slurry with a viscosity of 50 to 1000 cp, which is then dried and fired in a hydrogen atmosphere containing water and / or carbon dioxide to foam. A columnar porous metal, characterized by being formed by removing a resin and sintering a metal component.
〜１５μｍの金属粉末または金属酸化物粉末に分散媒を
加えて作成した粘度が５０〜１０００ｃｐのスラリーを
塗着含浸させたのち、乾燥し、水分およびまたは炭酸ガ
スを含む水素雰囲気で焼成し、発泡樹脂を消失させ金属
分を焼結させて形成した事を特徴とする、円筒状の多孔
金属。2. A cylindrical reticulated foam resin having an average particle size of 1
~ 15 μm metal powder or metal oxide powder with a dispersion medium added to create a slurry with a viscosity of 50 to 1000 cp, which is then dried and fired in a hydrogen atmosphere containing water and / or carbon dioxide to foam. A cylindrical porous metal, characterized by being formed by removing a resin and sintering a metal component.
１５μｍの金属粉末または金属酸化物粉末に分散媒を加
えて作成した粘度が５０〜１０００ｃｐのスラリーを塗
着含浸させたのち、乾燥し、水分およびまたは炭酸ガス
を含む水素雰囲気で焼成し、発泡樹脂を消失させ金属分
を焼結させて形成した事を特徴とする、球状の多孔金
属。3. A spherical reticulated foam resin having an average particle size of 1 to
A slurry made by adding a dispersion medium to a metal powder or metal oxide powder of 15 μm and having a viscosity of 50 to 1000 cp is applied and impregnated, then dried and fired in a hydrogen atmosphere containing moisture and / or carbon dioxide gas to obtain a foamed resin. A spherical porous metal, characterized in that it is formed by eliminating the metal and sintering the metal content.
Ａｇ，Ａｕ，Ｐｔ，Ｍｎ，Ｆｅ，Ｗ，Ｃｏ，Ｐｄ，Ｒ
ｈ，Ｔｉから選ばれる１種または２種以上である事を特
徴とする、請求項１、または２、または３、または４に
記載の多孔金属。4. A metal component comprising Ni, Cr, Cu, Mo, V,
Ag, Au, Pt, Mn, Fe, W, Co, Pd, R
The porous metal according to claim 1, 2 or 3 or 4, which is one or more selected from h and Ti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5060748A JP2825005B2 (en) | 1993-03-19 | 1993-03-19 | Method for producing porous metal and porous metal obtained by the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5060748A JP2825005B2 (en) | 1993-03-19 | 1993-03-19 | Method for producing porous metal and porous metal obtained by the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06271904A true JPH06271904A (en) | 1994-09-27 |
| JP2825005B2 JP2825005B2 (en) | 1998-11-18 |
Family
ID=13151207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5060748A Expired - Fee Related JP2825005B2 (en) | 1993-03-19 | 1993-03-19 | Method for producing porous metal and porous metal obtained by the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2825005B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001062994A1 (en) * | 2000-02-22 | 2001-08-30 | Qinetiq Limited | Method of manufacture for ferro-titanium and other metal alloys electrolytic reduction |
| JP2002210369A (en) * | 2001-01-19 | 2002-07-30 | Toyota Motor Corp | Catalyst for cleaning exhaust gas and its production method |
| JP2009011934A (en) * | 2007-07-04 | 2009-01-22 | Cataler Corp | Method for adjusting viscosity of slurry and method for manufacturing slurry |
| US7615184B2 (en) | 2006-01-25 | 2009-11-10 | Alexander Lobovsky | Metal, ceramic and cermet articles formed from low viscosity aqueous slurries |
| CN107530777A (en) * | 2015-06-12 | 2018-01-02 | 三菱综合材料株式会社 | Copper porous body and the porous composite component of copper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204137A (en) * | 1982-05-21 | 1983-11-28 | Mitsubishi Electric Corp | Manufacture of porous metallic body |
-
1993
- 1993-03-19 JP JP5060748A patent/JP2825005B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204137A (en) * | 1982-05-21 | 1983-11-28 | Mitsubishi Electric Corp | Manufacture of porous metallic body |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6921473B2 (en) | 2000-02-22 | 2005-07-26 | Qinetiq Limited | Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| AU2001233890B2 (en) * | 2000-02-22 | 2004-07-08 | Metalysis Limited | Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| WO2001062996A1 (en) * | 2000-02-22 | 2001-08-30 | Qinetiq Limited | Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| EA005348B1 (en) * | 2000-02-22 | 2005-02-24 | Квинетик Лимитед | Method of electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| GB2376241A (en) * | 2000-02-22 | 2002-12-11 | Qinetiq Ltd | Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
| GB2376241B (en) * | 2000-02-22 | 2004-03-03 | Qinetiq Ltd | Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
| WO2001062995A1 (en) * | 2000-02-22 | 2001-08-30 | Qinetiq Limited | Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
| EP1489192A1 (en) * | 2000-02-22 | 2004-12-22 | Qinetiq Limited | Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| EP1956102A3 (en) * | 2000-02-22 | 2008-08-20 | Metalysis Limited | Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| WO2001062994A1 (en) * | 2000-02-22 | 2001-08-30 | Qinetiq Limited | Method of manufacture for ferro-titanium and other metal alloys electrolytic reduction |
| JP2002210369A (en) * | 2001-01-19 | 2002-07-30 | Toyota Motor Corp | Catalyst for cleaning exhaust gas and its production method |
| US7615184B2 (en) | 2006-01-25 | 2009-11-10 | Alexander Lobovsky | Metal, ceramic and cermet articles formed from low viscosity aqueous slurries |
| JP2009011934A (en) * | 2007-07-04 | 2009-01-22 | Cataler Corp | Method for adjusting viscosity of slurry and method for manufacturing slurry |
| CN107530777A (en) * | 2015-06-12 | 2018-01-02 | 三菱综合材料株式会社 | Copper porous body and the porous composite component of copper |
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|---|---|
| JP2825005B2 (en) | 1998-11-18 |
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