KR100417520B1 - 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 - Google Patents
텅스텐 함유 2상 스테인레스강 슬라브의 가열방법Info
- Publication number
- KR100417520B1 KR100417520B1 KR10-1999-0057665A KR19990057665A KR100417520B1 KR 100417520 B1 KR100417520 B1 KR 100417520B1 KR 19990057665 A KR19990057665 A KR 19990057665A KR 100417520 B1 KR100417520 B1 KR 100417520B1
- Authority
- KR
- South Korea
- Prior art keywords
- heating
- stainless steel
- tungsten
- phase stainless
- oxidation
- Prior art date
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000010937 tungsten Substances 0.000 title claims abstract description 29
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910001039 duplex stainless steel Inorganic materials 0.000 title 1
- 238000003303 reheating Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 30
- 239000010935 stainless steel Substances 0.000 claims abstract description 28
- 230000007547 defect Effects 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 238000005098 hot rolling Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 abstract description 38
- 238000007254 oxidation reaction Methods 0.000 abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 239000007789 gas Substances 0.000 abstract description 9
- 238000009749 continuous casting Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 25
- 239000010959 steel Substances 0.000 description 25
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 13
- 229910052750 molybdenum Inorganic materials 0.000 description 13
- 239000011733 molybdenum Substances 0.000 description 13
- 238000005096 rolling process Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000011651 chromium Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/16—Two-phase or mixed-phase rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (1)
- 텅스텐을 1%이상 함유하는 2상 스테인레스강 슬라브를 열간압연하기 위해 가열하는 방법에 있어서,상기 슬라브의 표층부의 결함을 방지하기 위한 최적의 조건은 분위기 가스의 과잉산소량을 3%이하로 하고, 가열온도 1250℃ 이하인 상태에서 240분 이하 동안 가열하는 것을 특징으로 하는 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0057665A KR100417520B1 (ko) | 1999-12-14 | 1999-12-14 | 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0057665A KR100417520B1 (ko) | 1999-12-14 | 1999-12-14 | 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010056276A KR20010056276A (ko) | 2001-07-04 |
KR100417520B1 true KR100417520B1 (ko) | 2004-02-05 |
Family
ID=19625831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1999-0057665A KR100417520B1 (ko) | 1999-12-14 | 1999-12-14 | 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100417520B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100436911B1 (ko) * | 1999-12-30 | 2004-06-23 | 주식회사 포스코 | 표면 외관이 우수한 제로스팡글 용융아연 열연강판의제조방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03229839A (ja) * | 1990-02-02 | 1991-10-11 | Sumitomo Metal Ind Ltd | 2相ステンレス鋼およびその鋼材の製造方法 |
JPH0681037A (ja) * | 1992-08-31 | 1994-03-22 | Sumitomo Metal Ind Ltd | 二相ステンレス鋼熱延鋼帯の製造方法 |
KR0143481B1 (ko) * | 1995-06-05 | 1998-08-17 | 김만제 | 2상 스테인레스강 및 이를 이용한 강판의 제조방법 |
KR0146784B1 (ko) * | 1995-06-01 | 1998-11-02 | 김만제 | 몰리브덴과 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 |
-
1999
- 1999-12-14 KR KR10-1999-0057665A patent/KR100417520B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03229839A (ja) * | 1990-02-02 | 1991-10-11 | Sumitomo Metal Ind Ltd | 2相ステンレス鋼およびその鋼材の製造方法 |
JPH0681037A (ja) * | 1992-08-31 | 1994-03-22 | Sumitomo Metal Ind Ltd | 二相ステンレス鋼熱延鋼帯の製造方法 |
KR0146784B1 (ko) * | 1995-06-01 | 1998-11-02 | 김만제 | 몰리브덴과 텅스텐 함유 2상 스테인레스강 슬라브의 가열방법 |
KR0143481B1 (ko) * | 1995-06-05 | 1998-08-17 | 김만제 | 2상 스테인레스강 및 이를 이용한 강판의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20010056276A (ko) | 2001-07-04 |
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