WO1992018440A1 - Materiau refractaire au spinelle d'alumine non façonne - Google Patents
Materiau refractaire au spinelle d'alumine non façonne Download PDFInfo
- Publication number
- WO1992018440A1 WO1992018440A1 PCT/JP1991/001528 JP9101528W WO9218440A1 WO 1992018440 A1 WO1992018440 A1 WO 1992018440A1 JP 9101528 W JP9101528 W JP 9101528W WO 9218440 A1 WO9218440 A1 WO 9218440A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- alumina
- spinel
- aluminum
- molar ratio
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
- C04B35/443—Magnesium aluminate spinel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
Definitions
- the present invention is directed to an alumina / spinel irregular shaped refractory which is excellent in sporting resistance, corrosion resistance and slag erosion resistance.
- High alumina refractories are higher than those of rock and zircon.
- M S 0 A J2 2 O 3 molar ratio of 1: scan Pineruku Li down force one 1 of theoretical composition 1 0-8 5 wt%, Aluminum Na 5-3 0% by weight, high- a Le Mi that raise e n t 1 0-2 5 wt% Yo Ri becomes a material is, JP Sho 59- 128271, M gO: a £ 2 0 3 molar ratio is 0 close to the theoretical composition .8:. 1.2 to 1 1: 0 .9 of spinel is 5 0-9 5 wt% and the balance £ 2 0 3 Yo Ri Do that material, especially open Japanese Patent Publication No.
- Sho 60-60985 discloses that at least 60 parts by weight of a spinel clinker having a theoretical composition, 10 to 35 parts by weight of an aluminum clinker, and Material consisting of 3 to 10 layers i part is described. Also, in JP-A-64- 87577, M gO: A £ 2 0 3 molar ratio is 0 close to the theoretical composition .7: 1.3 to 1.3: 0.7 of the scan Pineruku Li down With a slug penetration resistance of 5 to 40% by weight, and an alumina clean force of 50 to 90% by weight, and an aluminum cement of 3 to 25% by weight. The material is described.
- the third engagement Ru Aluminum Na sp e nel quality monolithic refractory to the invention of the present invention, 1V O: £ 2 0 3 molar ratio is 0 1 4:. 1.8 from 6 to 0.6: Alumina in the range of 1.4 to 5% to 92% by weight of spinel-type clinker, 87% by weight or less of alumina raw material and 8 to 20% by weight of alumina cement It is characterized by adding 10 to 40 parts by weight of crushed alumina particles having a particle size of 10 to 5 Omm to one part by weight of the mixture.
- M gO A £ 2 O 3 molar ratio is 0 1 4:. 1.8 from 6 to 0.6: 1.4 3 0-8 2 weight range near Ru Aluminum Na spinel quality click linker of % And aluminum cement at 8 to 20% by weight
- M gO A £ 2 O 3
- the molar ratio of alumina and spinel clinker in the range of 0.14: 1.86 to 0.6: 1.4 is used.
- It is characterized by containing 30 to 82% by weight, less than 45% by weight of an alumina raw material, and 8 to 20% by weight of an alumina cement.
- Figure 1 shows the mixing ratio of spinel clinker with different M gO: A £ 2 O 3 molar ratios, and the corrosion resistance and slag immersion resistance. This is a graph showing the relationship.
- Fig. 2 shows that the sintered spinel A having almost the theoretical composition (MgO: A £ 2 O 3 molar ratio: 1.02: 0.98) was used alone (the remaining sintered aluminum and aluminum cement were used).
- This graph shows the mixing ratio (% by weight) of spinel clinker when used in (1) and the resistance to corrosion and slag infiltration.
- M gO A 2 O 3 molar ratio is 0.4 4: use 1.5 6
- Shoyuisu pin channel B alone (remainder sintered Aluminum Na and Aluminum Na Se e n t)
- This is a graph showing the mixing ratio (% by weight) of spinel clinker, corrosion resistance, and resistance to slag infiltration in this case.
- the alumina spinel clinker used for the aluminum spinel amorphous refractory of the present invention may be a fused spinel clinker or a sintered spinel clinker. linker one or's over the one we selected two or more, M gO: £ 2 0 3 molar ratio is 0 1 4:. 1.8 from 6 to 0.6: Ru 1.4 range near the Spinel clinker with solid solution of aluminum, but may have a small amount of random
- M gO A £ 2 0 3 molar ratio is 0.6: 1.4 good Ri and have come large, F e O of vinegar lag, Ru good to the lattice constant expansion in the case of M n O has entered The loosening of the tissue due to the expansion of the amorphous refractory increases, and the slag infiltration increases.
- Aluminum Na spinel electrolyte click the linker over for use in the present invention a theoretical composition (M gO: A £ 2 0 3 molar ratio of 1) than to the scan Binet torque linker of the coefficient of thermal expansion Because of the small size, spinning is better than when spinel linker is used alone.
- the content of the alumina-spinel clinker is 5 to 92% by weight.
- the effect of suppressing the infiltration of the alumina-spinel clinker is small when the groove is not 5% by weight, and when the amount exceeds 92% by weight, the amount of the alumina cement as a binder is reduced. As it decreases, the strength decreases.
- the addition amount is preferably in the range of 80 to 92% by weight from the standpoint of the addition amount of the aluminum cement described later.
- the addition amount of the alumina-spinel clinker is 30 to 82% by weight. That is, as can be seen from the graph of spinel clinker combination ratio, corrosion resistance, and slag infiltration resistance shown in FIG. 1, high corrosion resistance was obtained when the added amount was less than 30% by weight. No. In addition, if the content exceeds 82% by double placement, It is not preferable because the content of pinel linker cannot be more than 10% by weight and the content of aluminum cement cannot be more than 8% by weight, and high corrosion resistance and high strength cannot be obtained. .
- Shoyuisu Pinel A is M g 0: eight 2 0 3 molar ratio of 1.0 2: 0.9 8 to be Nodea is, baked Yuisu Pinel B is M s 0 : a 2 O 3 molar ratio is 0.4 4: 1.5 6 to be Ru Nodea.
- the spinel clinker used in the fourth and fifth inventions of the present invention may be any of an electrofused spinel and a sintered spinel, and may be any of them. May be used together.
- M gO of this sp e ne Torque linker chromatography A £ 2 O 3 molar ratio of 0.9:. 1 1 to 1.3: 0 range of .7 to be Nodea is, available particle size Is 1 mm or less. If the particle size exceeds lmm, it is not preferable because excellent slag penetration resistance cannot be obtained.
- the composition fi of the spinel linker is 10 to 40% by weight. That is, if it is less than 10% by weight, high corrosion resistance cannot be obtained, and if it exceeds 40% by weight, the slag infiltration resistance decreases, which is not preferable.
- alumina raw material used in the present invention one or more of sintered aluminum, electro-fused aluminum, bauxite, ban shale, and the like can be used. And whether the tooth, an increase of S ⁇ 0 2 sintered Al thy name for ing and producing cause of TeiTorusei substances, Fused Aluminum Na is not the Nozomi or. It is desirable to add coarse particles (3 mm or more and 10 mm or less) to bauxite, bamboo shale, etc. The amount of addition is 87% by weight or less in the second and third inventions. If the addition amount exceeds 87% by weight, the amount of spinel clinker added and the amount of alumina cement become small, so that slag infiltration and strength problems occur.
- the addition amount is 45% by weight or less. That is, if it exceeds 45% by weight, high corrosion resistance cannot be obtained, so that it is not preferable.
- Alumina cement has been conventionally used in castables, and is used as a binder in the present invention.
- the addition amount is desirably 8 to 20% by weight. That is, if it is less than 8% by weight, the strength is insufficient, and if it exceeds 20% by weight, the amount of the low-melting substance increases, and the corrosion resistance decreases.
- alumina crushed granules such as electrofused aluminum, ban shale, and aluminum brick of 10 to 5 O mm are used. Is added on the outside by 10 to 40% by weight.
- the alumina / spinel amorphous refractory of the present invention may further contain an organic fiber, a steel fiber, a curing modifier and the like within a range that does not impair the effects of the present invention. You may.
- a casting method, a spraying method, or the like can be used as a method of applying the alumina / spinel irregular shaped refractory according to the present invention.
- a casting method, a spraying method, or the like can be used as a method of applying the alumina / spinel irregular shaped refractory according to the present invention.
- Table 1 shows the chemical components of the raw materials used in Examples and Comparative Examples
- Table 2 shows the blending and various properties of the amorphous refractories of Examples and Comparative Examples.
- test method panel spalling method
- sample shape 65 x 11 x 230 mm
- temperature ⁇ time 1500 ° C-30 minutes
- Table 3 shows the chemical components of the raw materials used in Examples and Comparative Examples
- Table 4 shows the S content and various characteristics of the amorphous refractories of Examples and Comparative Examples.
- Sintered spinel D (less than one thigh) 20 20 20 10 40 20 20 40 20 40 Sintered spinel D (5 to ;!) 20 10 40 Sintered alumina ⁇ spinel B 30 50 70 80 30 50 30 50 80
- the alumina's spinel-shaped amorphous refractories according to the fourth and fifth inventions of the present invention are excellent in slag infiltration resistance and corrosion resistance, so that they are used under various conditions.
- the durability of the refractory lining, such as a more caustic sale can be remarkably improved, and an excellent effect of reducing the basic unit of the refractory can be obtained.
- the alumina-spinel amorphous refractory of the present invention is intended to meet the recent diversification of the steelmaking process and the demand for high sales, and to provide the amorphous refractory with few cracks and peeling. It is a material that can be provided and that can provide stable and high durability.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Glass Compositions (AREA)
- Building Environments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91919173A EP0535233B1 (en) | 1991-04-16 | 1991-11-07 | Unshaped alumina spinel refractory |
KR1019920703245A KR950008607B1 (ko) | 1991-04-16 | 1991-11-07 | 알루미나-스피넬질 부정형 내화물 |
DE69108029T DE69108029T2 (de) | 1991-04-16 | 1991-11-07 | Ungeformter, feuerfester aluminiumoxid-spinell. |
US07/927,266 US5316571A (en) | 1991-04-16 | 1991-11-07 | Alumina-spinel type monolithic refractories |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3/84121 | 1991-04-16 | ||
JP8412191 | 1991-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992018440A1 true WO1992018440A1 (fr) | 1992-10-29 |
Family
ID=13821690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/001528 WO1992018440A1 (fr) | 1991-04-16 | 1991-11-07 | Materiau refractaire au spinelle d'alumine non façonne |
Country Status (8)
Country | Link |
---|---|
US (1) | US5316571A (ja) |
EP (1) | EP0535233B1 (ja) |
KR (1) | KR950008607B1 (ja) |
AT (1) | ATE119511T1 (ja) |
AU (2) | AU645633B2 (ja) |
CA (1) | CA2076004C (ja) |
DE (1) | DE69108029T2 (ja) |
WO (1) | WO1992018440A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494267A (en) * | 1994-07-26 | 1996-02-27 | Magneco/Metrel, Inc. | Pumpable casting composition and method of use |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5418198A (en) * | 1993-08-23 | 1995-05-23 | Magneco/Metrel, Inc. | Pelletizable gunning composition |
US5972102A (en) * | 1996-10-29 | 1999-10-26 | North American Refractories Co. | Hydraulically-bonded monolithic refractories containing a calcium oxide-free binder comprised of a hydratable alumina source and magnesium oxide |
JPH1160332A (ja) * | 1997-08-21 | 1999-03-02 | Ngk Insulators Ltd | フェライト系製品の焼成用治具 |
US5932506A (en) * | 1998-02-23 | 1999-08-03 | Bogan; Jeffrey E. | Alumina-silicon carbide-carbon refractory castable containing magnesium aluminate spinel |
FR2788762B1 (fr) * | 1999-01-26 | 2002-04-12 | Lafarge Aluminates | Liant du type clinker, utilisation et procede de fabrication d'un tel liant |
US7459409B2 (en) | 2004-06-29 | 2008-12-02 | Jfe Steel Corporation | Unshaped refractories |
KR101066574B1 (ko) * | 2004-09-13 | 2011-09-22 | 재단법인 포항산업과학연구원 | 부정형 내화조성물 |
EP2168935A1 (de) | 2008-09-29 | 2010-03-31 | Siemens Aktiengesellschaft | Materialzusammensetzung zur Herstellung eines Feuerfestwerkstoffes sowie ihre Verwendung und Feuerfestformkörper sowie Verfahren zu seiner Herstellung |
DE102012003483B3 (de) | 2012-02-21 | 2013-02-21 | Technische Universität Bergakademie Freiberg | Thermoschock- und korrosionsbeständiger Keramikwerkstoff auf der Basis von Calciumzirkonat und Verfahren zu seiner Herstellung |
CN113845353A (zh) * | 2020-06-28 | 2021-12-28 | 宝山钢铁股份有限公司 | 用于钢包工作衬包壁的过渡砖层 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS526713A (en) * | 1975-07-05 | 1977-01-19 | Kyushu Refractories | Spinel refractories |
JPS6060985A (ja) * | 1983-09-08 | 1985-04-08 | 新日本製鐵株式会社 | 取鍋内張り用不定形耐火組成物 |
JPH02221165A (ja) * | 1989-02-23 | 1990-09-04 | Harima Ceramic Co Ltd | 溶鋼取鍋敷部用キャスタブル耐火物 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5523004A (en) * | 1978-08-02 | 1980-02-19 | Towa Taika Kogyo Kk | Spinel castable refractories |
JPS609983B2 (ja) * | 1978-12-20 | 1985-03-14 | 黒崎窯業株式会社 | 水硬性耐火組成物 |
JPS59128271A (ja) * | 1982-12-29 | 1984-07-24 | 株式会社神戸製鋼所 | 溶銑脱珪用流込み材 |
DE3532228A1 (de) * | 1984-10-02 | 1986-04-17 | Toshiba Ceramics Co., Ltd., Tokio/Tokyo | Feuerfeste zusammensetzung |
JPS6487577A (en) * | 1987-08-29 | 1989-03-31 | Harima Ceramic Co Ltd | Monolithic alumina-spinel refractory |
US5135896A (en) * | 1989-10-31 | 1992-08-04 | North American Refractories Company | Spinel bondable ceramic composition |
JPH03205368A (ja) * | 1989-12-30 | 1991-09-06 | Kawasaki Refract Co Ltd | アルミナ―スピネル質不定形耐火物 |
JPH0660985A (ja) * | 1992-08-04 | 1994-03-04 | Iwate Seitetsu Kk | 照明制御システム |
-
1991
- 1991-11-07 CA CA002076004A patent/CA2076004C/en not_active Expired - Fee Related
- 1991-11-07 US US07/927,266 patent/US5316571A/en not_active Expired - Fee Related
- 1991-11-07 AU AU88475/91A patent/AU645633B2/en not_active Ceased
- 1991-11-07 EP EP91919173A patent/EP0535233B1/en not_active Expired - Lifetime
- 1991-11-07 AT AT91919173T patent/ATE119511T1/de not_active IP Right Cessation
- 1991-11-07 WO PCT/JP1991/001528 patent/WO1992018440A1/ja active IP Right Grant
- 1991-11-07 KR KR1019920703245A patent/KR950008607B1/ko not_active IP Right Cessation
- 1991-11-07 DE DE69108029T patent/DE69108029T2/de not_active Expired - Fee Related
-
1993
- 1993-11-03 AU AU50449/93A patent/AU660567B2/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS526713A (en) * | 1975-07-05 | 1977-01-19 | Kyushu Refractories | Spinel refractories |
JPS6060985A (ja) * | 1983-09-08 | 1985-04-08 | 新日本製鐵株式会社 | 取鍋内張り用不定形耐火組成物 |
JPH02221165A (ja) * | 1989-02-23 | 1990-09-04 | Harima Ceramic Co Ltd | 溶鋼取鍋敷部用キャスタブル耐火物 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494267A (en) * | 1994-07-26 | 1996-02-27 | Magneco/Metrel, Inc. | Pumpable casting composition and method of use |
Also Published As
Publication number | Publication date |
---|---|
EP0535233A1 (en) | 1993-04-07 |
KR930701365A (ko) | 1993-06-11 |
AU5044993A (en) | 1994-01-13 |
US5316571A (en) | 1994-05-31 |
DE69108029D1 (de) | 1995-04-13 |
DE69108029T2 (de) | 1995-08-31 |
CA2076004A1 (en) | 1992-10-17 |
EP0535233A4 (en) | 1993-07-28 |
KR950008607B1 (ko) | 1995-08-03 |
AU8847591A (en) | 1992-11-17 |
AU645633B2 (en) | 1994-01-20 |
ATE119511T1 (de) | 1995-03-15 |
AU660567B2 (en) | 1995-06-29 |
EP0535233B1 (en) | 1995-03-08 |
CA2076004C (en) | 1996-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0420871B2 (ja) | ||
WO1992018440A1 (fr) | Materiau refractaire au spinelle d'alumine non façonne | |
JP2769400B2 (ja) | 溶鋼鍋湯当り部用不定形耐火物 | |
JPH08175877A (ja) | キャスタブル耐火物 | |
JP4408552B2 (ja) | 炭酸マグネシウムをマグネシア源とするアルミナ−マグネシア質キャスタブル耐火物 | |
JPH0323275A (ja) | 流し込み用不定形耐火物 | |
JP3128427B2 (ja) | アルミナ・スピネル質不定形耐火物 | |
US5681785A (en) | Castable refractory containing alumina coarse grains | |
JP2516720B2 (ja) | アルミナ−スピネル質不定形耐火物 | |
JP2766624B2 (ja) | アルミナ・スピネル質不定形耐火物 | |
JPH06172044A (ja) | アルミナ・スピネル質キャスタブル耐火物 | |
JPH07267719A (ja) | アルミナ・マグネシア・カーボンれんが | |
JP3176836B2 (ja) | 不定形耐火物 | |
JP3426024B2 (ja) | 不定形耐火物施工体の施工方法 | |
JP3002296B2 (ja) | 粗骨材ブレンドマグネシア・カーボン質耐火物の製造方法 | |
JPH03205368A (ja) | アルミナ―スピネル質不定形耐火物 | |
JPH0633180B2 (ja) | アルミナ・スピネル質流し込み材 | |
JPH0483755A (ja) | アルミナ―クロミア―ジルコニア系耐火れんが | |
JPH0647503B2 (ja) | 熱間補修用不定形耐火物 | |
JPH0354162A (ja) | 耐火物 | |
JPH07106946B2 (ja) | 取鍋内張り用不定形耐火物 | |
JPH04193770A (ja) | 塩基性質流し込み施工用耐火物 | |
JPH0477366A (ja) | 流し込み不定形耐火物 | |
JP2002321985A (ja) | マグネシア質不定形耐火物 | |
JPH0587470B2 (ja) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2076004 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1991919173 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE |
|
WWP | Wipo information: published in national office |
Ref document number: 1991919173 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1991919173 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: CA Ref document number: 2076004 Kind code of ref document: A Format of ref document f/p: F |