EP0480727B1 - Coated hearth roll and process for its production - Google Patents
Coated hearth roll and process for its production 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
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)
- Paints Or Removers (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Tunnel Furnaces (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
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 (en) | 1992-04-15 |
EP0480727B1 true EP0480727B1 (en) | 1995-07-26 |
Family
ID=24385970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91309332A Expired - Lifetime EP0480727B1 (en) | 1990-10-11 | 1991-10-10 | Coated hearth roll and process for its production |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0480727B1 (es) |
JP (1) | JPH0718405A (es) |
KR (1) | KR960008146B1 (es) |
AT (1) | ATE125577T1 (es) |
AU (1) | AU658833B2 (es) |
CA (1) | CA2053188C (es) |
DE (1) | DE69111552T2 (es) |
ES (1) | ES2075364T3 (es) |
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 (es) * | 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 (es) * | 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 DE DE69111552T patent/DE69111552T2/de not_active Expired - Fee Related
- 1991-10-10 CA CA002053188A patent/CA2053188C/en not_active Expired - Fee Related
- 1991-10-10 AT AT91309332T patent/ATE125577T1/de active
- 1991-10-10 ES ES91309332T patent/ES2075364T3/es not_active Expired - Lifetime
- 1991-10-10 EP EP91309332A patent/EP0480727B1/en not_active Expired - Lifetime
- 1991-10-11 JP JP3290356A patent/JPH0718405A/ja active Pending
- 1991-10-11 KR KR1019910017861A patent/KR960008146B1/ko not_active IP Right Cessation
- 1991-10-11 AU AU85784/91A patent/AU658833B2/en not_active Ceased
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 |
---|---|
KR960008146B1 (ko) | 1996-06-20 |
ES2075364T3 (es) | 1995-10-01 |
KR920008209A (ko) | 1992-05-27 |
AU8578491A (en) | 1992-04-16 |
DE69111552T2 (de) | 1996-02-29 |
CA2053188C (en) | 1997-12-16 |
EP0480727A1 (en) | 1992-04-15 |
JPH0718405A (ja) | 1995-01-20 |
AU658833B2 (en) | 1995-05-04 |
ATE125577T1 (de) | 1995-08-15 |
DE69111552D1 (de) | 1995-08-31 |
CA2053188A1 (en) | 1992-04-12 |
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Inventor name: FUKUBAYASHI, HAROLD HARUHISA Inventor name: AMANO, MASAHIKO, C2-3-12 NIPPON STEEL OHWADA APT. Inventor name: NAKAMURA, YUKIHIRO, B2-12 NIPPON STEEL OHWADA APT Inventor name: NITTA, HIDEO Inventor name: OHNO, KEIICHIRO |
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