KR20100023579A - 턴디쉬용 어퍼 노즐 - Google Patents
턴디쉬용 어퍼 노즐 Download PDFInfo
- Publication number
- KR20100023579A KR20100023579A KR1020080082429A KR20080082429A KR20100023579A KR 20100023579 A KR20100023579 A KR 20100023579A KR 1020080082429 A KR1020080082429 A KR 1020080082429A KR 20080082429 A KR20080082429 A KR 20080082429A KR 20100023579 A KR20100023579 A KR 20100023579A
- Authority
- KR
- South Korea
- Prior art keywords
- upper nozzle
- nozzle
- tundish
- molten steel
- mullite
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/52—Manufacturing or repairing thereof
- B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/42—Features relating to gas injection
-
- 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
-
- 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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/185—Mullite 3Al2O3-2SiO2
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
실시예 | ||||||
1 | 2 | 3 | 4 | 5 | ||
뮬라이트 | 65 | 30 | 40 | 35 | 30 | |
알루미나 | 15 | 45 | 32 | 30 | 50 | |
지르코니아 뮬라이트 | 15 | 20 | 20 | 30 | 15 | |
기타(크롬,점토) | 5 | 5 | 8 | 5 | 5 | |
부피비중 | 2.40 | 2.90 | 2.77 | 2.78 | 2.92 | |
기공율(%) | 22.0 | 23.0 | 21.0 | 21.5 | 24.0 | |
기공경(㎛) | 8.5 | 9.9 | 7.0 | 6.5 | 5.0 | |
통기량(nℓ/min at 0.5kg/㎠) | 25 | 40 | 40 | 45 | 35 | |
열충격성 | ○ | △ | ◎ | ◎ | ○ | |
수조 버블 통기량(nℓ/min) | 0.5kg/㎠ | 10 | 16 | 16 | 18 | 14 |
1.0kg/㎠ | 45 | 72 | 72 | 80 | 60 | |
실로 테스트 | 내 크랙성 | ○ | △ | ◎ | ◎ | ○ |
개재물 난부착성 | ◎ | △ | ◎ | ○ | ◎ |
Claims (2)
- 골재부, 중립부, 미분부로 구성되는 어퍼 노즐의 재료가 뮬라이트 30-65 중량%, 알루미나 15-50 중량%, 지르코니아 뮬라이트 15-30 중량%의 조성비로 이루어지고 골재부 가장 큰 입자의 입도가 0.6mm 이하이며, 미분부의 입도가 0.075mm 이하이고 기공경이 5.0-9.9㎛로 미세하게 형성된 것을 특징으로 하는 턴디쉬용 어퍼 노즐.
- 제 1 항에 있어서, 상기 미분부의 입도 0.075mm 이하의 재료가 전체 노즐 재료의 25-50%로 구성된 것을 특징으로 하는 턴디쉬용 어퍼 노즐.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080082429A KR100986054B1 (ko) | 2008-08-22 | 2008-08-22 | 턴디쉬용 어퍼 노즐 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080082429A KR100986054B1 (ko) | 2008-08-22 | 2008-08-22 | 턴디쉬용 어퍼 노즐 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100023579A true KR20100023579A (ko) | 2010-03-04 |
KR100986054B1 KR100986054B1 (ko) | 2010-10-08 |
Family
ID=42175799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080082429A KR100986054B1 (ko) | 2008-08-22 | 2008-08-22 | 턴디쉬용 어퍼 노즐 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100986054B1 (ko) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06218531A (ja) * | 1993-01-25 | 1994-08-09 | Tokyo Yogyo Co Ltd | スライドゲート用上部ノズルレンガ |
KR960016750B1 (ko) * | 1993-11-19 | 1996-12-20 | 박영숙 | 지반개량체 조성장치 및 공법 |
JPH08117992A (ja) * | 1994-10-24 | 1996-05-14 | Tokyo Yogyo Co Ltd | スライドゲート用上部ノズルレンガ |
KR100643839B1 (ko) | 2005-05-02 | 2006-11-10 | 조선내화 주식회사 | 가스주입형 다공성 내화재 |
-
2008
- 2008-08-22 KR KR1020080082429A patent/KR100986054B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR100986054B1 (ko) | 2010-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100767742B1 (ko) | 강철의 연속 주조용 침지 노즐 및 그것을 사용하는 강철의연속 주조 방법 | |
KR100986054B1 (ko) | 턴디쉬용 어퍼 노즐 | |
KR20090076011A (ko) | 연속주조용 침지노즐의 내화물 | |
JP4249940B2 (ja) | アルミキルド鋼の鋳造方法 | |
KR100643839B1 (ko) | 가스주입형 다공성 내화재 | |
KR100349243B1 (ko) | 연속주조용 침지노즐 | |
US6637629B2 (en) | Immersion nozzle | |
KR101066573B1 (ko) | 프리캐스팅 웰브록 및 그 웰브록의 내화조성물 | |
JP2959632B1 (ja) | 連続鋳造用ノズル | |
KR100361807B1 (ko) | 가스 취입형 다공성 내화재 | |
KR100307064B1 (ko) | 가스 취입형 다공성 내화재 조성물 | |
KR100483132B1 (ko) | 침윤방지층 및 저융물형성층을 포함하는 포러스 및 노즐 내화재 | |
KR100704853B1 (ko) | 용강 배출용 노즐을 지지하는 웰블럭 | |
JP3774557B2 (ja) | 溶融金属への不活性ガス吹込み用耐火物及びその製造方法 | |
KR100544063B1 (ko) | 용융금속 흐름 제어용 슬라이팅 플레이트 내화재 | |
KR100352603B1 (ko) | 내화조성물 및 이를 이용한 턴디쉬의 상부노즐 | |
KR20100076113A (ko) | 다공성 내화물 및 이를 이용한 철강 제조로 | |
KR20010098628A (ko) | 침지 노즐 | |
JPH0437466A (ja) | 不焼成スライディングノズルプレートれんが | |
KR20060028217A (ko) | 침지노즐 | |
KR100318492B1 (ko) | 용융금속 흐름제어용 슬라이딩 플레이트 내화재 | |
JPH11114659A (ja) | 連続鋳造用ノズル | |
KR100384618B1 (ko) | 용융금속 흐름 제어용 슬라이딩 플레이트 내화재 | |
KR100318491B1 (ko) | 용융금속 흐름제어용 슬라이딩 플레이트 내화재 | |
WO1999047472A1 (en) | Low silica refractory |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20131002 Year of fee payment: 4 |
|
FPAY | Annual fee payment |
Payment date: 20141002 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20151002 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20161005 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20170927 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20181002 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20191001 Year of fee payment: 10 |