KR100352603B1 - 내화조성물 및 이를 이용한 턴디쉬의 상부노즐 - Google Patents
내화조성물 및 이를 이용한 턴디쉬의 상부노즐 Download PDFInfo
- Publication number
- KR100352603B1 KR100352603B1 KR1019980056671A KR19980056671A KR100352603B1 KR 100352603 B1 KR100352603 B1 KR 100352603B1 KR 1019980056671 A KR1019980056671 A KR 1019980056671A KR 19980056671 A KR19980056671 A KR 19980056671A KR 100352603 B1 KR100352603 B1 KR 100352603B1
- Authority
- KR
- South Korea
- Prior art keywords
- upper nozzle
- tundish
- molten steel
- refractory composition
- nozzle
- 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
- C04B35/10—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 aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/117—Composites
- C04B35/119—Composites with zirconium oxide
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Composite Materials (AREA)
Abstract
Description
구분 | 화학조성(중량%) | Al2O3 | 기공율(%) | 평균기공크기(㎛) | 사용후균열발생여부 | MLAC적중율(%) | ||||
Al2O3 | SiO2 | Cr2O3 | ZrO2 | 형상 | 크기(㎛) | |||||
종래재 | 96.8 | 0.9 | 1.8 | - | 구형+전융 | 구형:0.2~0.4전융:3~4.5 | 24.9 | 26 | 발생 | 92.7 |
발명재1 | 89 | 4.6 | 1.5 | 3.2 | 구형 | 0.2~0.4 | 25.7 | 18 | 미발생 | 96.8 |
발명재2 | 88.5 | 4.6 | 1.7 | 3.0 | 26.2 | 20 | 97.2 | |||
발명재3 | 89 | 4.9 | 1.7 | 3.5 | 26.8 | 20 | 97.2 | |||
발명재4 | 90 | 4.9 | 1.8 | 3.4 | 25.8 | 19 | 97.8 |
Claims (3)
- 중량%로, Al2O3: 88~90%, SiO2: 4.5~5.0%, Cr2O3: 1.5~1.8%, ZrO2: 3.0~3.5%를 포함하고, 상기 Al2O3는 전부 구형임을 특징으로 하는 턴디쉬의 상부노즐용 내화조성물
- 제1항의 내화조성물로 이루어지고, 그 내부의 기공율이 25~27%의 범위이며, 평균기공의 크기가 16~20㎛임을 특징으로 하는 턴디쉬의 상부노즐
- 제2항에 있어서, 상기 상부노즐의 압축강도는 300~350kg/㎠임을 특징으로 하는 턴디쉬의 상부노즐
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980056671A KR100352603B1 (ko) | 1998-12-21 | 1998-12-21 | 내화조성물 및 이를 이용한 턴디쉬의 상부노즐 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980056671A KR100352603B1 (ko) | 1998-12-21 | 1998-12-21 | 내화조성물 및 이를 이용한 턴디쉬의 상부노즐 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000040918A KR20000040918A (ko) | 2000-07-15 |
KR100352603B1 true KR100352603B1 (ko) | 2002-10-19 |
Family
ID=19564153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980056671A KR100352603B1 (ko) | 1998-12-21 | 1998-12-21 | 내화조성물 및 이를 이용한 턴디쉬의 상부노즐 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100352603B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100483132B1 (ko) * | 2001-10-29 | 2005-04-14 | 조선내화 주식회사 | 침윤방지층 및 저융물형성층을 포함하는 포러스 및 노즐 내화재 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585485A (en) * | 1983-01-24 | 1986-04-29 | Hiroshi Shikano | Refractory sliding nozzle plate |
US4646950A (en) * | 1983-10-29 | 1987-03-03 | Harima Refractory Co., Ltd. | Sliding nozzle plate |
JPH02102168A (ja) * | 1988-10-12 | 1990-04-13 | Kawasaki Refract Co Ltd | アルミナ質耐火れんがの製造法 |
KR910001934A (ko) * | 1989-06-08 | 1991-01-31 | 미다 가쓰시게 | 배치 최적화 방법과 장치 및 반도체 장치 설계장치 |
JPH05131267A (ja) * | 1991-02-15 | 1993-05-28 | Kawasaki Refract Co Ltd | スライデイングノズル用プレ−トれんが |
-
1998
- 1998-12-21 KR KR1019980056671A patent/KR100352603B1/ko not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585485A (en) * | 1983-01-24 | 1986-04-29 | Hiroshi Shikano | Refractory sliding nozzle plate |
US4646950A (en) * | 1983-10-29 | 1987-03-03 | Harima Refractory Co., Ltd. | Sliding nozzle plate |
JPH02102168A (ja) * | 1988-10-12 | 1990-04-13 | Kawasaki Refract Co Ltd | アルミナ質耐火れんがの製造法 |
KR910001934A (ko) * | 1989-06-08 | 1991-01-31 | 미다 가쓰시게 | 배치 최적화 방법과 장치 및 반도체 장치 설계장치 |
JPH05131267A (ja) * | 1991-02-15 | 1993-05-28 | Kawasaki Refract Co Ltd | スライデイングノズル用プレ−トれんが |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100483132B1 (ko) * | 2001-10-29 | 2005-04-14 | 조선내화 주식회사 | 침윤방지층 및 저융물형성층을 포함하는 포러스 및 노즐 내화재 |
Also Published As
Publication number | Publication date |
---|---|
KR20000040918A (ko) | 2000-07-15 |
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