EP0480727B1 - Rouleau de fourneau revêtu et procédé pour sa fabrication - Google Patents
Rouleau de fourneau revêtu et procédé pour sa fabrication Download PDFInfo
- Publication number
- EP0480727B1 EP0480727B1 EP91309332A EP91309332A EP0480727B1 EP 0480727 B1 EP0480727 B1 EP 0480727B1 EP 91309332 A EP91309332 A EP 91309332A EP 91309332 A EP91309332 A EP 91309332A EP 0480727 B1 EP0480727 B1 EP 0480727B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- zirconia
- feed composition
- powder
- powder feed
- 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
- 238000000034 method Methods 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000000576 coating method Methods 0.000 claims abstract description 57
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 44
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 15
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 6
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- 238000005474 detonation Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 229910052681 coesite Inorganic materials 0.000 claims description 14
- 229910052906 cristobalite Inorganic materials 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229910052682 stishovite Inorganic materials 0.000 claims description 14
- 229910052905 tridymite Inorganic materials 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 9
- 239000008199 coating composition Substances 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 229910002076 stabilized zirconia Inorganic materials 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 2
- 239000004615 ingredient Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 15
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004901 spalling Methods 0.000 description 14
- 239000000758 substrate Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 8
- 238000000151 deposition Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005524 ceramic coating Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000010963 304 stainless steel Substances 0.000 description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000009718 spray deposition Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000005382 thermal cycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- -1 acetylene Chemical compound 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910002084 calcia-stabilized zirconia Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical group [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
Definitions
- a hearth roll having a metal surface coated with a wear resistant refractory oxide coating which comprises particles of zirconium silicate and/or its decomposition products SiO2 and ZrO2, in a mixture with particles of zirconia fully or partialy stabilized with an oxide selected from Ca0, Y203, Mg0, Ce02 and Hf02.
- a process for forming a wear resistant and thermal shock resistant refractory oxide coating on a metal hearth roll for use in the continuous annealing of steel comprises: formulating a powder feed composition comprising mixing powder particles of zirconium silicate with powder particles of zirconia at least partially stabilized with an oxide selected from Ca0, Y203, Mg0, Ce02 and Hf02; and thermally spraying the powder feed composition on the metal roll to form an as-deposited coating composition which, by x-ray phase analysis, comprises: Zr02 ⁇ x where x is one of the stabilizing oxides; ZrSi04 and/or its decomposition products SiO2 and ZrO2, and Si02.
- the powder feed composition should comprise at least 65 wt% stabilized zirconia with the remainder substantially zirconium silicate whereas for detonation gun application the powder feed composition should comprise at least 40 wt% stabilized zirconia and up to 60 wt% zirconium silicate.
- the zirconia may be either fully or partially stabilized although partially stabilized zirconia is preferred.
- the impervious layer may be less than 0.005mm (5 microns) and is produced as a result of interdiffusion or oxidation in an environment at an elevated temperature in the presence of oxygen.
- a similar layer may form in an inert atmosphere as a result of reaction between the oxide overcoat and the metallic undercoat.
- the sample substrate material had a thick plate shape with a dimension of 50x50x10 mm, one 50x50 side coated.
- the sample substrate was 304 stainless steel.
- Thermal shock resistance is evaluated by counting how many cycles the coating can survive without spalling off. Sample No. of Cycles 8 no spalling after 20 cycles 13 no spalling after 20 cycles 14 spalling after 6 cycles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Coating By Spraying Or Casting (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Tunnel Furnaces (AREA)
- Paints Or Removers (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Claims (10)
- Rouleau de soie destiné à être utilisé dans le recuit continu de l'acier, consistant en un rouleau ayant une surface métallique portant un revêtement d'oxyde réfractaire résistant à l'usure qui comprend des particules de silicate de zirconium et/ou de ses produits de décomposition SiO₂ et ZrO₂ en mélange avec des particules de zircone totalement ou partiellement stabilisée avec un oxyde choisi entre CaO, Y₂O₃, MgO, CeO₂ et HfO₂.
- Rouleau suivant la revendication 1, dans lequel la composition de revêtement comprend au moins 40 % en poids de la zircone stabilisée et jusqu'à 60 % en poids de silicate de zirconium et/ou de ses produits de décomposition SiO₂ et ZrO₂.
- Rouleau suivant la revendication 2, dans lequel la particule de zircone stabilisée représente l'ingrédient principal de la composition de revêtement.
- Procédé pour former un revêtement d'oxyde réfractaire résistant à l'usure et résistant aux chocs thermiques sur un rouleau de soie en métal destiné à être utilisé dans le recuit continu de l'acier, procédé qui comprend :
la formulation d'une composition d'alimentation, sous forme de poudre, comprenant le mélange de particules de poudre de silicate de zirconium avec des particules de poudre de zircone stabilisée au moins partiellement avec un oxyde choisi entre CaO, Y₂O₃, MgO, CeO₂ et HfO₂ ; et
la pulvérisation thermique de la composition d'alimentation, sous forme de poudre, sur le rouleau métallique pour former une composition de revêtement telle que déposée qui, par analyse des phases aux rayons X, comprend : du ZrO₂.x dans lequel x est un des oxydes stabilisants ; du ZrSiO₄ et/ou ses produits de décomposition SiO₂ et ZrO₂ et du SiO₂. - Procédé suivant la revendication 4, dans lequel la composition de particules de poudre comprend au moins 40 % en poids de zircone stabilisée et jusqu'à 60 % en poids de silicate de zirconium et/ou de ses produits de décomposition SiO₂ et ZrO₂.
- Procédé suivant la revendication 4 ou 5, dans lequel une sous-couche d'un alliage matière céramique-métal est déposée sur le rouleau de sole en métal avant la pulvérisation thermique de la composition d'alimentation sous forme de poudre.
- Procédé suivant la revendication 6, dans lequel la sous-couche d'alliage matière céramique-métal est une matrice métallique à base de cobalt comprenant du Co-Cr-Al-Ta-Y et du Al₂O₃.
- Procédé suivant la revendication 4 ou 7, dans lequel le revêtement tel que déposé est formé en introduisant la composition d'alimentation, sous forme de poudre, à travers un chalumeau à plasma, ladite composition d'alimentation sous forme de poudre, comprenant au moins 65 % en poids de la zircone partiellement stabilisée et jusqu'à 35 % en poids de silicate de zirconium.
- Procédé suivant la revendication 4 ou 7, dans lequel le revêtement tel que déposé est formé en introduisant la composition d'alimentation sous forme de poudre, à travers un canon à détonation, ladite composition d'alimentation sous forme de poudre, comprenant au moins 40 % en poids de la zircone partiellement stabilisée et jusqu'à 60 % en poids de silicate de zirconium.
- Procédé suivant la revendication 9, dans lequel la composition d'alimentation sous forme de poudre, comprend au moins 50 % en poids de zircone partiellement stabilisée.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59609690A | 1990-10-11 | 1990-10-11 | |
| US596096 | 1990-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0480727A1 EP0480727A1 (fr) | 1992-04-15 |
| EP0480727B1 true EP0480727B1 (fr) | 1995-07-26 |
Family
ID=24385970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91309332A Expired - Lifetime EP0480727B1 (fr) | 1990-10-11 | 1991-10-10 | Rouleau de fourneau revêtu et procédé pour sa fabrication |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0480727B1 (fr) |
| JP (1) | JPH0718405A (fr) |
| KR (1) | KR960008146B1 (fr) |
| AT (1) | ATE125577T1 (fr) |
| AU (1) | AU658833B2 (fr) |
| CA (1) | CA2053188C (fr) |
| DE (1) | DE69111552T2 (fr) |
| ES (1) | ES2075364T3 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993215A (zh) * | 2013-02-14 | 2014-08-20 | 普莱克斯S.T.技术有限公司 | 充当特定氧化物形成障碍的加载有高水平陶瓷的改性MCrAlY组合物的选择性氧化 |
| CN105483695A (zh) * | 2015-12-04 | 2016-04-13 | 武汉钢铁(集团)公司 | 一种炉底辊的制作方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5304519A (en) * | 1992-10-28 | 1994-04-19 | Praxair S.T. Technology, Inc. | Powder feed composition for forming a refraction oxide coating, process used and article so produced |
| US5667641A (en) * | 1995-10-23 | 1997-09-16 | Pulp And Paper Research Institute Of Canada | Application of thermal barrier coatings to paper machine drying cylinders to prevent paper edge overdrying |
| US6517960B1 (en) | 1999-04-26 | 2003-02-11 | General Electric Company | Ceramic with zircon coating |
| US6730422B2 (en) * | 2002-08-21 | 2004-05-04 | United Technologies Corporation | Thermal barrier coatings with low thermal conductivity |
| ATE518016T1 (de) * | 2006-05-12 | 2011-08-15 | Fundacion Inasmet | Verfahren zum erhalt von keramikbeschichtungen und erhaltene keramikbeschichtungen |
| JP5112361B2 (ja) | 2009-02-27 | 2013-01-09 | 三菱重工業株式会社 | 航空機構造体製造装置 |
| DE102017004944A1 (de) | 2017-05-23 | 2018-11-29 | Vdeh-Betriebsforschungsinstitut Gmbh | Ofenrolle für einen Wärmebehandlungsprozess eines Werkstücks, Verfahren zum Herstellen derselben, Transporteinrichtung für einen Ofen, Thermoprozessanlage und Verwendung einer Ofenrolle in einer Thermoprozessanlage mit einem Ofen |
| DE102022119143A1 (de) * | 2022-07-29 | 2024-02-01 | Endress+Hauser Flowtec Ag | Edelstahlprodukt, Feldgerät und Verfahren zur Herstellung |
| CN115584461A (zh) * | 2022-08-26 | 2023-01-10 | 武汉钢铁有限公司 | 一种防止炭套辊芯渗碳的方法、隔离涂层及炉底辊 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6709949A (fr) * | 1966-07-22 | 1968-01-23 | ||
| FR1536493A (fr) * | 1966-07-22 | 1968-08-16 | Montedison Spa | Enduits protecteurs de grande résistance et procédé correspondant pour leur application sur des surfaces intérieurs de réacteurs de craquage d'hydrocarbure |
| CS155480B1 (fr) * | 1972-06-02 | 1974-05-30 | ||
| AU603692B2 (en) * | 1983-06-20 | 1990-11-22 | Norton Company | A powder for the production of sintered stabilized zirconia |
| JPS60194056A (ja) * | 1984-03-14 | 1985-10-02 | Hitachi Ltd | セラミツク被覆層を有する耐熱部材 |
| DE3543802A1 (de) * | 1985-12-12 | 1987-06-19 | Bbc Brown Boveri & Cie | Hochtemperatur-schutzschicht und verfahren zu ihrer herstellung |
-
1991
- 1991-10-10 AT AT91309332T patent/ATE125577T1/de active
- 1991-10-10 ES ES91309332T patent/ES2075364T3/es not_active Expired - Lifetime
- 1991-10-10 CA CA002053188A patent/CA2053188C/fr not_active Expired - Fee Related
- 1991-10-10 DE DE69111552T patent/DE69111552T2/de not_active Expired - Fee Related
- 1991-10-10 EP EP91309332A patent/EP0480727B1/fr not_active Expired - Lifetime
- 1991-10-11 JP JP3290356A patent/JPH0718405A/ja active Pending
- 1991-10-11 AU AU85784/91A patent/AU658833B2/en not_active Ceased
- 1991-10-11 KR KR1019910017861A patent/KR960008146B1/ko not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993215A (zh) * | 2013-02-14 | 2014-08-20 | 普莱克斯S.T.技术有限公司 | 充当特定氧化物形成障碍的加载有高水平陶瓷的改性MCrAlY组合物的选择性氧化 |
| CN103993215B (zh) * | 2013-02-14 | 2017-08-29 | 普莱克斯 S.T.技术有限公司 | 充当特定氧化物形成障碍的加载有高水平陶瓷的改性MCrAlY组合物的选择性氧化 |
| CN105483695A (zh) * | 2015-12-04 | 2016-04-13 | 武汉钢铁(集团)公司 | 一种炉底辊的制作方法 |
| CN105483695B (zh) * | 2015-12-04 | 2018-03-30 | 武汉钢铁重工集团有限公司 | 一种炉底辊的制作方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU658833B2 (en) | 1995-05-04 |
| DE69111552T2 (de) | 1996-02-29 |
| CA2053188A1 (fr) | 1992-04-12 |
| CA2053188C (fr) | 1997-12-16 |
| EP0480727A1 (fr) | 1992-04-15 |
| KR920008209A (ko) | 1992-05-27 |
| KR960008146B1 (ko) | 1996-06-20 |
| AU8578491A (en) | 1992-04-16 |
| ES2075364T3 (es) | 1995-10-01 |
| ATE125577T1 (de) | 1995-08-15 |
| JPH0718405A (ja) | 1995-01-20 |
| DE69111552D1 (de) | 1995-08-31 |
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