KR101105933B1 - 압연결함이 저감된 오스테나이트계 스테인레스강 주편의제조방법 - Google Patents
압연결함이 저감된 오스테나이트계 스테인레스강 주편의제조방법 Download PDFInfo
- Publication number
- KR101105933B1 KR101105933B1 KR1020040091059A KR20040091059A KR101105933B1 KR 101105933 B1 KR101105933 B1 KR 101105933B1 KR 1020040091059 A KR1020040091059 A KR 1020040091059A KR 20040091059 A KR20040091059 A KR 20040091059A KR 101105933 B1 KR101105933 B1 KR 101105933B1
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- KR
- South Korea
- Prior art keywords
- index
- delta ferrite
- stainless steel
- rolling
- austenitic stainless
- 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 - Fee Related
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- 230000007547 defect Effects 0.000 title claims abstract description 42
- 238000005096 rolling process Methods 0.000 title claims abstract description 31
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 42
- 238000005266 casting Methods 0.000 claims abstract description 23
- 238000009749 continuous casting Methods 0.000 claims abstract description 15
- 238000000691 measurement method Methods 0.000 claims abstract description 3
- 238000007654 immersion Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 17
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 239000012071 phase Substances 0.000 description 9
- 229910001208 Crucible steel Inorganic materials 0.000 description 8
- 229910001566 austenite Inorganic materials 0.000 description 7
- 238000005098 hot rolling Methods 0.000 description 6
- 238000005204 segregation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/002—Stainless steels
-
- 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
- B22D11/16—Controlling or regulating processes or operations
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Continuous Casting (AREA)
Abstract
Description
구분 | 주조속도 (m/min.) |
침지깊이 (㎜) |
고립영역 지수 | 압연결함 지수 |
발명재 1 | 1.1 | 120 | 0.43 | 1.56 |
발명재 2 | 0.9 | 125 | 0.54 | 2.72 |
발명재 3 | 1.4 | 130 | 0.58 | 2.51 |
발명재 4 | 0.9 | 120 | 0.41 | 2.53 |
비교재 1 | 1.1 | 130 | 1.35 | 7.43 |
비교재 2 | 1.1 | 110 | 1.38 | 7.59 |
비교재 3 | 0.9 | 130 | 1.04 | 5.73 |
Claims (2)
- 제1항에 있어서,상기 연속주조의 조건은 침지깊이가 110~130 ㎜이며, 주조속도가 0.9~1.4 m/min.인 압연결함이 저감된 오스테나이트계 스테인레스강 주편의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040091059A KR101105933B1 (ko) | 2004-11-09 | 2004-11-09 | 압연결함이 저감된 오스테나이트계 스테인레스강 주편의제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040091059A KR101105933B1 (ko) | 2004-11-09 | 2004-11-09 | 압연결함이 저감된 오스테나이트계 스테인레스강 주편의제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060042474A KR20060042474A (ko) | 2006-05-15 |
KR101105933B1 true KR101105933B1 (ko) | 2012-01-18 |
Family
ID=37148337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040091059A Expired - Fee Related KR101105933B1 (ko) | 2004-11-09 | 2004-11-09 | 압연결함이 저감된 오스테나이트계 스테인레스강 주편의제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101105933B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08252652A (ja) * | 1995-03-15 | 1996-10-01 | Nippon Steel Corp | 残留δフェライトの少ないオーステナイト系ステンレス鋼薄肉鋳片の製造方法 |
JPH1112652A (ja) | 1997-06-24 | 1999-01-19 | Kawasaki Steel Corp | 均一な光沢面を有するオーステナイト系ステンレス鋼板の製造方法 |
KR20010053734A (ko) * | 1999-12-01 | 2001-07-02 | 이구택 | 스테인레스스틸 합금의 결함 제거 방법 |
KR100397295B1 (ko) | 1998-12-29 | 2003-11-20 | 주식회사 포스코 | 304계스테인레스강연주주편의표층슬리버결함저감방법 |
-
2004
- 2004-11-09 KR KR1020040091059A patent/KR101105933B1/ko not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08252652A (ja) * | 1995-03-15 | 1996-10-01 | Nippon Steel Corp | 残留δフェライトの少ないオーステナイト系ステンレス鋼薄肉鋳片の製造方法 |
JPH1112652A (ja) | 1997-06-24 | 1999-01-19 | Kawasaki Steel Corp | 均一な光沢面を有するオーステナイト系ステンレス鋼板の製造方法 |
KR100397295B1 (ko) | 1998-12-29 | 2003-11-20 | 주식회사 포스코 | 304계스테인레스강연주주편의표층슬리버결함저감방법 |
KR20010053734A (ko) * | 1999-12-01 | 2001-07-02 | 이구택 | 스테인레스스틸 합금의 결함 제거 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20060042474A (ko) | 2006-05-15 |
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