KR20080108312A - 고 알루미늄 강의 연속 주조 방법 및 몰드 분말 - Google Patents
고 알루미늄 강의 연속 주조 방법 및 몰드 분말 Download PDFInfo
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- KR20080108312A KR20080108312A KR1020087026242A KR20087026242A KR20080108312A KR 20080108312 A KR20080108312 A KR 20080108312A KR 1020087026242 A KR1020087026242 A KR 1020087026242A KR 20087026242 A KR20087026242 A KR 20087026242A KR 20080108312 A KR20080108312 A KR 20080108312A
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- continuous casting
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- 239000000843 powder Substances 0.000 title claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 238000009749 continuous casting Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 63
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 45
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 23
- 230000004907 flux Effects 0.000 claims description 14
- 238000007654 immersion Methods 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 38
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 2
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 50
- 238000007711 solidification Methods 0.000 description 38
- 230000008023 solidification Effects 0.000 description 38
- 239000013078 crystal Substances 0.000 description 27
- 229910010093 LiAlO Inorganic materials 0.000 description 26
- 239000000203 mixture Substances 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000010583 slow cooling Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 10
- 239000010949 copper Substances 0.000 description 9
- 230000020169 heat generation Effects 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052918 calcium silicate Inorganic materials 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 235000012241 calcium silicate Nutrition 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229910018516 Al—O Inorganic materials 0.000 description 3
- 229910004261 CaF 2 Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001669680 Dormitator maculatus Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910017112 Fe—C Inorganic materials 0.000 description 1
- 229910017108 Fe—Fe Inorganic materials 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009223 counseling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910001678 gehlenite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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
- B22D11/10—Supplying or treating molten metal
- B22D11/108—Feeding additives, powders, or the like
-
- 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
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
-
- 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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
Claims (3)
- Al 함유량이 0.1 내지 3.0%(질량%를 의미, 이하 동일함)인 동시에, Si, Mn, Ni, Cr 및 Mo를 각각 4.0% 이하(0%를 포함하지 않음) 포함하고, 또한 C 함유량[C]이 하기 수학식 1 내지 3식의 관계를 만족시키는 용강을, 몰드 분말을 이용하여 연속 주조함에 있어서,상기 몰드 분말로서, T-CaO: 35 내지 55%, SiO2: 10 내지 30%, Al2O3: 4.0% 이하(0%를 포함하지 않음), MgO: 0.2 내지 1.0%, Li2O: 7 내지 13%, F: 7 내지 13%, C: 10.5 내지 14%, 및 불가피한 불순물로 이루어지고, 하기 수학식 4 및 5를 충족시키는 동시에,주형내의 탕면 레벨 변동 속도를 14mm/초 이하로 하고, 주형 폭 방향으로 용강을 토출시키는 동시에, 그 토출 각도가 수평에 대하여 하향 0°이상 55°이하인 침지 노즐을 이용하고, 또한 진폭의 스트로크를 2mm 초과 8mm 이하로 하며, 또한 하기 수학식 6으로 정해지는 네가티브 스트립 시간 tN이 0.28초 이하가 되도록 주형 진동을 부여하면서 조업하는 것을 특징으로 하는 고 Al강의 연속 주조방법.[수학식 1]fl-0.10≤[C]≤f2+0.05[수학식 2]f1=0.0828[Si]-0.0195[Mn]+0.07398[Al]-0.04614[Ni]+0.02447[Cr]+0.01851[Mo]+0.090[수학식 3]f2=0.2187[Si]-0.03291[Mn]+0.2017[Al]-0.06715[Ni]+0.04776[Cr]+0.04601[Mo]+0.173[수학식 1 내지 3중, [Si], [Mn], [Al], [Ni], [Cr] 및 [Mo]는 각각 Si, Mn, Ni, Cr 및 Mo의 함유량(질량%)을 나타낸다.][수학식 4]1.6≤[T-CaO]/[SiO2]≤ 5[수학식 5]0.2≤[Li2O]/[SiO2]≤ 1.1[수학식 4 및 5 중, [T-CaO], [SiO2] 및 [Li2O]은 각각 T-CaO, SiO2 및 Li2O의 몰드 분말 중의 함유량(질량%)을 나타낸다.][수학식 6]tN=(1/π·f)cos-1(Vc/π·f·s)[여기서, f: 주형 진동수(Hz), s: 주형 진동시의 주형의 상사점과 하사점 사이의 거리(mm), Vc: 주조편 인발속도(mm/초)를 각각 나타낸다]
- 제 1 항에 있어서,300 내지 1200 가우스의 자속밀도에서 주형내 전자 교반을 행하면서 조업하 는 연속 주조 방법.
- 강의 연속 주조에 사용되는 몰드 분말로서,T-CaO: 35 내지 55%(질량%를 의미, 이하 동일함),SiO2: 10 내지 30%,Al2O3: 4.0% 이하(0%를 포함하지 않음),MgO: 0.2 내지 1.0%,Li2O: 7 내지 13%,F: 7 내지 13%,C: 10.5 내지 14%, 및불가피한 불순물로 이루어지고,하기 수학식 4 및 5를 만족시키는 것을 특징으로 하는, 용존 Al량이 0.1% 이상인 강을 연속 주조 하기 위한 몰드 분말.[수학식 4]1.6≤[T-CaO]/[SiO2]≤ 5[수학식 5]0.2≤[Li2O]/[SiO2]≤1.1[수학식 4 및 5 중, [T-CaO], [SiO2] 및 [Li2O]는 각각 T-CaO, SiO2 및 Li2O 의 몰드 분말 중의 함유량(질량%)을 나타낸다.]
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006120786A JP4646849B2 (ja) | 2006-04-25 | 2006-04-25 | 高アルミニウム鋼の連続鋳造用モールドパウダー |
JPJP-P-2006-120786 | 2006-04-25 | ||
JP2006121055A JP3993623B1 (ja) | 2006-04-25 | 2006-04-25 | 高Al鋼の連続鋳造方法 |
JPJP-P-2006-121055 | 2006-04-25 | ||
PCT/JP2007/058751 WO2007125871A1 (ja) | 2006-04-25 | 2007-04-23 | 高アルミニウム鋼の連続鋳造方法及びモールドパウダー |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080108312A true KR20080108312A (ko) | 2008-12-12 |
KR101057950B1 KR101057950B1 (ko) | 2011-08-18 |
Family
ID=38655396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020087026242A KR101057950B1 (ko) | 2006-04-25 | 2007-04-23 | 고 알루미늄 강의 연속 주조 방법 및 몰드 분말 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8146649B2 (ko) |
KR (1) | KR101057950B1 (ko) |
GB (1) | GB2450855B (ko) |
WO (1) | WO2007125871A1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4527693B2 (ja) * | 2006-07-26 | 2010-08-18 | 株式会社神戸製鋼所 | 高Al鋼スラブの連続鋳造方法 |
CN102233413B (zh) * | 2011-06-27 | 2013-08-07 | 河南通宇冶材集团有限公司 | 一种超纯净钢无侵蚀型覆盖剂及其生产方法 |
CN102756103B (zh) * | 2012-08-10 | 2014-10-08 | 重庆大学 | 高结晶性高润滑性连铸用结晶器保护渣 |
EP3127632B1 (en) * | 2014-06-10 | 2018-09-12 | Nippon Steel & Sumitomo Metal Corporation | Method of continuous casting ti-containing sub-peritectic steel using mold flux |
CN106687233B (zh) * | 2014-09-11 | 2018-09-28 | 新日铁住金株式会社 | 钢的连续铸造用保护渣 |
JP6515394B2 (ja) * | 2015-11-05 | 2019-05-22 | 日本製鉄株式会社 | 連続鋳造用モールドフラックスおよび連続鋳造方法 |
WO2020246498A1 (ja) | 2019-06-04 | 2020-12-10 | Jfeスチール株式会社 | Al含有亜包晶鋼の連続鋳造用モールドパウダー及び連続鋳造方法 |
CN113084113B (zh) * | 2021-03-08 | 2022-06-14 | 山东钢铁股份有限公司 | 一种适用于板坯连铸机的异钢种混浇方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3179358B2 (ja) | 1997-01-31 | 2001-06-25 | 日本鋼管株式会社 | 連続鋳造用モールドパウダー |
JP3412691B2 (ja) * | 1999-12-28 | 2003-06-03 | 株式会社神戸製鋼所 | 溶融金属の連続鋳造法 |
JP3649153B2 (ja) * | 2001-05-28 | 2005-05-18 | 住友金属工業株式会社 | 連続鋳造用モールドパウダ |
JP2003053496A (ja) | 2001-08-07 | 2003-02-26 | Sanyo Special Steel Co Ltd | アルミニウム含有鋼の連続鋳造用モールドパウダー |
JP3772111B2 (ja) | 2001-12-12 | 2006-05-10 | 日鐵建材工業株式会社 | 高Al・Y・REM含有鋼連続鋳造用モールドフラックス |
JP4380171B2 (ja) * | 2002-03-01 | 2009-12-09 | Jfeスチール株式会社 | 鋳型内溶鋼の流動制御方法及び流動制御装置並びに連続鋳造鋳片の製造方法 |
US20050045303A1 (en) * | 2003-08-29 | 2005-03-03 | Jfe Steel Corporation, A Corporation Of Japan | Method for producing ultra low carbon steel slab |
US7493936B2 (en) * | 2005-11-30 | 2009-02-24 | Kobe Steel, Ltd. | Continuous casting method |
-
2007
- 2007-04-23 GB GB0821413A patent/GB2450855B/en not_active Expired - Fee Related
- 2007-04-23 KR KR1020087026242A patent/KR101057950B1/ko active IP Right Grant
- 2007-04-23 US US12/297,984 patent/US8146649B2/en not_active Expired - Fee Related
- 2007-04-23 WO PCT/JP2007/058751 patent/WO2007125871A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2007125871A1 (ja) | 2007-11-08 |
GB2450855A (en) | 2009-01-07 |
GB0821413D0 (en) | 2008-12-31 |
KR101057950B1 (ko) | 2011-08-18 |
US20110094703A1 (en) | 2011-04-28 |
GB2450855B (en) | 2010-12-01 |
US8146649B2 (en) | 2012-04-03 |
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