EP0236823B1 - Demi-produit métallique, procédé pour sa fabrication et utilisation du demi-produit - Google Patents
Demi-produit métallique, procédé pour sa fabrication et utilisation du demi-produit Download PDFInfo
- Publication number
- EP0236823B1 EP0236823B1 EP87102472A EP87102472A EP0236823B1 EP 0236823 B1 EP0236823 B1 EP 0236823B1 EP 87102472 A EP87102472 A EP 87102472A EP 87102472 A EP87102472 A EP 87102472A EP 0236823 B1 EP0236823 B1 EP 0236823B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- semi
- finished product
- process according
- temperature
- annealing
- 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
- 239000011265 semifinished product Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000013078 crystal Substances 0.000 claims abstract description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000000137 annealing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052772 Samarium Inorganic materials 0.000 claims description 4
- 229910052776 Thorium Inorganic materials 0.000 claims description 4
- 229910052770 Uranium Inorganic materials 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 2
- 229910000531 Co alloy Inorganic materials 0.000 claims 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 5
- 150000002910 rare earth metals Chemical class 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 17
- 229910045601 alloy Inorganic materials 0.000 description 13
- 239000000956 alloy Substances 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- -1 Y2O3 Chemical class 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 230000004222 uncontrolled growth Effects 0.000 description 1
- 238000010308 vacuum induction melting process Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
Definitions
- the invention relates to a method for producing semi-finished metal products in the form of wire, rods, billets, tubes, in particular sheet metal or strips, for applications in which a high thermal shock resistance and large surface area and / or chemical resistance and / or low thermal conductivity of the surface layer is required , in particular for catalyst supports, soot filters, heating conductors, aerosol filters, linings of chemical and energy converting systems.
- the semi-finished product is based on iron and / or nickel and / or cobalt with 2 to 16% aluminum, 12 to 30% chromium and up to 4% of at least one highly reactive element from the group Y, Zr, Ti, Ce, Sm, Hf , La, Th, U, V, W, Nb, Mo, Gd, Si, Mg, Ca and / or their dispersed oxides.
- An alloy from this area was made from J. Electrochem. Soc., Solid-State Science Technology, Volume 131, No. 4, pages 923-931. By annealing strips of this alloy at temperatures above 1000 ° C in oxygen, oxide-containing surfaces can be created.
- a ferritic stainless steel which can be processed hot and is resistant to temperature changes, oxidation and scaling at elevated temperatures.
- the iron-chromium-aluminum alloy contains cerium, lanthanum and other rare earth metals and is suitable for forming a textured aluminum oxide film on the surface.
- the alloy is produced in the usual way by melting.
- the typical steel impurities such as oxygen, nitrogen and sulfur are reduced before the rare earth metals are added to the melt.
- Any conventional process, including arc furnaces, AOD and vacuum induction melting processes, is applicable.
- the melt is poured into blocks, bars, strips or sheets.
- the steel is then hot and / or cold rolled and subjected to the usual procedures such as descaling and annealing.
- the ferritic stainless steel is then heat treated to form an alumina surface.
- the object of the invention is to provide a semi-finished metal product which, preferably without an intermediate layer (wash coat), represents a temperature change-resistant adhesive base for a catalytically active coating.
- the task also includes the creation of a method which leads in the simplest possible way to a metallic semi-finished product with the property mentioned.
- Form contained gas, in particular CO2 is set under reducing conditions and then in the temperature range from 800 to 1000 ° C for up to 25 h in air, at least in the surface area of Semi-finished metal stem crystals are formed,
- Normal steel contaminants are carbon, nitrogen, oxygen, phosphorus, sulfur, manganese, copper and nickel.
- the surface structure can be clearly seen from the attached micrographs.
- Figure 1 shows a semi-finished product surface produced using conventional methods with irregularly lying whisker-like oxidic stem crystals.
- Figure 2 shows the semi-finished product surface as it is formed when the method according to the invention is carried out.
- the large areas are the metal stem crystals, from the surface of which the oxidic stem crystals have grown like hair.
- Figure 3 shows the oxide stem crystals in 10 times magnification compared to Figure 2. According to this, the axes of the oxide stem crystals are predominantly perpendicular to the geometric surface of the semi-finished product, which is formed by the surfaces of the metal stem crystals.
- the invention provides a semi-finished metal product in which metal stem crystallites are formed at least in the surface area by the directional solidification of the metal alloy. Due to the high cooling rate and thermal treatment, the additional elements from the aforementioned group X, which are highly reactive, i.e. are highly oxygen-affine, or their oxides, which are present in finely divided form in the surface area, in the subsequent heat treatment as germs. At the same time, as a kind of dowel, they ensure a high level of adhesive strength for the thermally grown oxidic stem crystallites. A further improved nucleation is achieved by briefly heating as the first thermal treatment stage under reducing conditions or those that occur during this treatment.
- the long-term annealing treatment under oxidizing conditions, preferably in air, in which the oxidic stem crystallites grow, which mainly consist of aluminum oxide and / or chromium oxide, the axes of which are also predominantly perpendicular to the geometric surface of the semi-finished product. Due to this stem crystal formation, an extraordinarily large surface is created, in which a metallic and / or ceramic coating can be very well anchored.
- profiled, finely crystalline strips of approximately 20 to 200 ⁇ m can be produced in this way, with the aid of cooled copper rolls, possibly up to approximately 500 ⁇ m and more. It is preferable to produce tapes approximately 40 to 70 ⁇ m thick.
- the described stem crystal formation at least in the surface area of the semi-finished product can alternatively be achieved by pouring onto cooled rolls by briefly melting a surface layer of the cast or rolled semi-finished product with subsequent self-cooling.
- a metal strip 50 ⁇ m thick was produced at a cooling rate of 10rate to 105 K / s.
- the material composition is 20% chromium, 5% aluminum, 0.15% cerium, 0.01% lanthanum, the rest iron with small amounts of Si, Mn, C, S, P, Ni as trace elements.
- the tape was then preheated to 900 ° C dry carbon dioxide gas for one minute and then held in air at 925 ° C for 16 hours.
- a cold rolled sheet of the same material composition was also treated after recrystallization annealing.
- the stalk-shaped oxide grains of the cast strip have diameters of approximately 0.2 ⁇ m and lengths of on average approximately 4 ⁇ m and that they are arranged almost uniformly perpendicular to the surface of the metal grains, while the sample produced by rolling is scaly , partially in contact with each other grains of different orientation and length of up to about 3 microns.
- Example 1 A 10 mm thick plate made of the material described in Example 1 was bombarded with an electron beam in such a way that a spot approximately 0.5 mm in diameter was melted down to a depth of 100 ⁇ m. The plate was then treated in CO2 gas at 900 ° C for 1 minute. The procedure was as in Example 1.
- the sample was subjected to several temperature changes, being heated to approximately 1000 ° C. and quenched in an oil bath.
- the stem oxide grains in the area of the melting spot were not attacked by the treatment, the oxide layer on the rest of the sample surface shows individual flaking.
- Example 2 A plate according to Example 2 with a similar melting spot was produced, then an etching was carried out so that the grain boundaries were exposed to a depth of 20 ⁇ m and the procedure according to Example 1 was then continued. It was found that a radiation-like oxide-grain layer of the same quality as in Example 1 had grown on the metal grains which had been partially exposed.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Continuous Casting (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Adornments (AREA)
- Forging (AREA)
Claims (9)
caractérisé en ce qu'on fait solidifier le demi-produit depuis l'état de fusion sur un front principalement parallèle à la surface géométrique, à une vitesse de refroidissement de 10³ à 10⁶ K/s, on le recuit ensuite pendant un temps court à une température de 800 à 1000°C dans un gaz contenant de l'oxygène sous forme liée, en particulier du CO₂, dans les conditions réductrices se réglant dans ce cas, et ensuite dans la plage de température de 800 à 1000°C jusqu'à 25h. à l'air, des cristaux colonnaires métalliques étant formés au moins dans la région superficielle du demi-produit, parmi lesquels ont grossi principalement des cristaux colonnaires constitués d'oxyde d'aluminium et/ou d'oxyde de chrome, les axes des deux types de cristaux colonnaires se trouvant principalement orthogonaux à la surface géométrique du demi-produit.
caractérisé en ce qu'on fabrique le demi-produit par coulée en feuillard au moyen d'au moins un cylindre refroidi ou par coulée continue.
caractérisé en ce que le demi-produit préalablement fabriqué est fondu brièvement en surface et refroidi dans l'air, sous vide ou dans un gaz inerte.
caractérisé en ce que le recuit à l'air est effectué à une température dans la plage de 850 à 1000°C pendant 4 à 20h.
caractérisé en ce que le recuit est effectué dans des conditions réductrices à une température dans la plage de 880 à 980°C pendant 0,5 à 4mn.
caractérisé en ce qu'on ajoute à l'alliage de fer et/ou de nickel et/ou de cobalt de 14 à 25% de chrome.
caractérisé en ce qu'on ajoute à l'alliage de fer et/ou de nickel et/ou de cobalt de 5 à 9% d'aluminium.
comme couche d'adhérence résistant aux modifications de température pour un revêtement métallique ou céramique.
pour des supports de catalyseur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87102472T ATE65552T1 (de) | 1986-03-01 | 1987-02-21 | Metallenes halbzeug, verfahren zur herstellung und verwendung des halbzeugs. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3606804 | 1986-03-01 | ||
DE19863606804 DE3606804A1 (de) | 1986-03-01 | 1986-03-01 | Metallisches halbzeug und verfahren zu seiner herstellung sowie verwendung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0236823A2 EP0236823A2 (fr) | 1987-09-16 |
EP0236823A3 EP0236823A3 (en) | 1988-05-25 |
EP0236823B1 true EP0236823B1 (fr) | 1991-07-24 |
Family
ID=6295321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87102472A Expired - Lifetime EP0236823B1 (fr) | 1986-03-01 | 1987-02-21 | Demi-produit métallique, procédé pour sa fabrication et utilisation du demi-produit |
Country Status (6)
Country | Link |
---|---|
US (1) | US4798631A (fr) |
EP (1) | EP0236823B1 (fr) |
JP (1) | JPH0660386B2 (fr) |
KR (1) | KR940003503B1 (fr) |
AT (1) | ATE65552T1 (fr) |
DE (2) | DE3606804A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6411957A (en) * | 1987-07-04 | 1989-01-17 | Kawasaki Steel Co | Manufacture of stainless steel having high-temperature oxidation film excellent in corrosion resistance |
US4915751A (en) * | 1988-09-06 | 1990-04-10 | General Motors Corporation | Accelerated whisker growth on iron-chromium-aluminum alloy foil |
JP3386848B2 (ja) * | 1992-06-10 | 2003-03-17 | 株式会社島津製作所 | 排気ガス浄化装置及びその製造方法 |
EP0625585B1 (fr) * | 1993-05-20 | 1997-05-02 | Kawasaki Steel Corporation | Feuille mince d'alliages fer-chrome-aluminium résistant à l'oxydation pour substrat de catalyseur d'un convertisseur et sa méthode de production |
JP3374173B2 (ja) * | 1999-10-21 | 2003-02-04 | 独立行政法人物質・材料研究機構 | 室温延性のある耐熱性金属間化合物Ni3Al箔の製造方法および室温延性のある耐熱性金属間化合物Ni3Al箔 |
JP3728396B2 (ja) | 2000-04-12 | 2005-12-21 | セイコーエプソン株式会社 | 磁石材料の製造方法 |
JP3611107B2 (ja) * | 2000-04-12 | 2005-01-19 | セイコーエプソン株式会社 | 冷却ロール |
JP3587140B2 (ja) | 2000-07-31 | 2004-11-10 | セイコーエプソン株式会社 | 磁石粉末の製造方法、磁石粉末およびボンド磁石 |
JP4554794B2 (ja) * | 2000-08-23 | 2010-09-29 | 日本冶金工業株式会社 | 絶縁層を有するステンレス鋼 |
EP1344907A1 (fr) * | 2002-03-12 | 2003-09-17 | Capital Technology GmbH | Dispositif pour enlever des particules de carbone des gases d'échappement |
GB2394959A (en) * | 2002-11-04 | 2004-05-12 | Doncasters Ltd | Hafnium particle dispersion hardened nickel-chromium-iron alloys |
AU2003283525A1 (en) * | 2002-11-04 | 2004-06-07 | Doncasters Limited | High temperature resistant alloys |
JP4614063B2 (ja) * | 2004-05-20 | 2011-01-19 | 日産自動車株式会社 | ウィスカー形成体及びウィスカー形成体の製造方法 |
JP4788878B2 (ja) * | 2004-07-01 | 2011-10-05 | 日産自動車株式会社 | ウィスカー被覆材料及びその製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0232793A1 (fr) * | 1986-01-30 | 1987-08-19 | Nippon Steel Corporation | Ruban en acier inoxydable utilisable comme support de catalyseur pour les gaz d'échappement des moteurs à combustion interne et procédé pour sa fabrication |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3027252A (en) * | 1959-09-29 | 1962-03-27 | Gen Electric | Oxidation resistant iron-chromium alloy |
US3298826A (en) * | 1964-04-06 | 1967-01-17 | Carl S Wukusick | Embrittlement-resistant iron-chromium-aluminum-yttrium alloys |
JPS4945456B1 (fr) * | 1969-06-25 | 1974-12-04 | ||
US4331631A (en) * | 1979-11-28 | 1982-05-25 | General Motors Corporation | Enhanced oxide whisker growth on peeled Al-containing stainless steel foil |
US4414023A (en) * | 1982-04-12 | 1983-11-08 | Allegheny Ludlum Steel Corporation | Iron-chromium-aluminum alloy and article and method therefor |
GB2158746A (en) * | 1984-05-14 | 1985-11-20 | Olin Corp | Apparatus and process for rolling spin cast strip |
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1986
- 1986-03-01 DE DE19863606804 patent/DE3606804A1/de active Granted
-
1987
- 1987-02-21 EP EP87102472A patent/EP0236823B1/fr not_active Expired - Lifetime
- 1987-02-21 AT AT87102472T patent/ATE65552T1/de not_active IP Right Cessation
- 1987-02-21 DE DE8787102472T patent/DE3771526D1/de not_active Expired - Fee Related
- 1987-02-25 US US07/018,545 patent/US4798631A/en not_active Expired - Fee Related
- 1987-02-28 KR KR1019870001778A patent/KR940003503B1/ko not_active IP Right Cessation
- 1987-02-28 JP JP62044144A patent/JPH0660386B2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0232793A1 (fr) * | 1986-01-30 | 1987-08-19 | Nippon Steel Corporation | Ruban en acier inoxydable utilisable comme support de catalyseur pour les gaz d'échappement des moteurs à combustion interne et procédé pour sa fabrication |
Non-Patent Citations (1)
Title |
---|
K.N. STRAFFORD, "High Temperature Technology, vol. 1, No. 6, Nov. 1983, p. 307-318 * |
Also Published As
Publication number | Publication date |
---|---|
JPS62290857A (ja) | 1987-12-17 |
KR870009050A (ko) | 1987-10-23 |
DE3771526D1 (de) | 1991-08-29 |
EP0236823A2 (fr) | 1987-09-16 |
DE3606804C2 (fr) | 1989-03-30 |
EP0236823A3 (en) | 1988-05-25 |
ATE65552T1 (de) | 1991-08-15 |
JPH0660386B2 (ja) | 1994-08-10 |
DE3606804A1 (de) | 1987-09-10 |
KR940003503B1 (ko) | 1994-04-23 |
US4798631A (en) | 1989-01-17 |
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