JP7491941B2 - 鋼インゴットの製造方法 - Google Patents
鋼インゴットの製造方法 Download PDFInfo
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- JP7491941B2 JP7491941B2 JP2021553132A JP2021553132A JP7491941B2 JP 7491941 B2 JP7491941 B2 JP 7491941B2 JP 2021553132 A JP2021553132 A JP 2021553132A JP 2021553132 A JP2021553132 A JP 2021553132A JP 7491941 B2 JP7491941 B2 JP 7491941B2
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- 229910000831 Steel Inorganic materials 0.000 title claims description 143
- 239000010959 steel Substances 0.000 title claims description 143
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 27
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000009628 steelmaking Methods 0.000 description 11
- 229910000601 superalloy Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000010313 vacuum arc remelting Methods 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 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
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0025—Adding carbon material
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Continuous Casting (AREA)
Description
液体溶鋼を提供する工程と、
インゴット型に上記液体溶鋼を充填する工程と、
上記真空容器内を減圧する工程と、
上記液体溶鋼を減圧状態で少なくとも部分的に凝固させてインゴットにする工程であって、上記液体溶鋼が、上記溶鋼の凝固の少なくとも一部の間、減圧状態で上記インゴット型内で撹拌される工程と
を含み、
上記液体溶鋼が、所定の量の炭素と、
酸化物の形態の付随的不純物元素と
を含み、上記溶鋼の撹拌中に、この酸化物が、この酸化物中の酸素と溶鋼中の炭素とが一酸化炭素を生成する炭素熱反応により還元されることを特徴とする方法によって満たされる。
Si:0~3、好ましくは0.05~3;Mn:0~3、好ましくは0.05~3;Cr:0~18、好ましくは0.05~18;Ni:0~10、好ましくは0.05~10;V:0~2、好ましくは0.05~2;Mo:0~3、好ましくは0.05~3;N:0~0.4、好ましくは0.01~0.4。
Claims (11)
- 真空容器(110)と、前記真空容器内に配置されたインゴット型(120)と、前記インゴット型内の液体溶鋼を撹拌するように配置された撹拌装置(130)とを含む鋳造装置(100)における鋼インゴットの製造方法であって、
液体溶鋼を提供する工程(1000)と、
前記インゴット型(120)に前記液体溶鋼を充填する工程(2000)と、
前記真空容器(110)内を減圧する工程(3000)と、
前記液体溶鋼を減圧状態で少なくとも部分的に凝固させてインゴットにする工程であって、前記液体溶鋼が、前記液体溶鋼の凝固の少なくとも一部の間、減圧状態で前記インゴット型内で撹拌される工程(4000)と
を含み、
前記インゴット型が、鋼又は鋳鉄で製造されており、
前記液体溶鋼が、Feをベースとし、所定の量の炭素と、
酸化物の形態の付随的不純物元素と
を含み、撹拌中に、前記酸化物が、前記酸化物中の酸素と前記液体溶鋼中の炭素とが一酸化炭素を生成する炭素熱反応により還元され、
前記液体溶鋼を提供する工程(1000)が、前記真空容器の外側で前記液体溶鋼を製造することを含み、
前記真空容器(110)内の圧力が1mbar以下であることを特徴とする方法。 - 前記真空容器(110)内の圧力が0.1mbar以下である請求項1に記載の方法。
- 凝固した前記インゴット中のppm酸素として測定された酸化物の含有量が、3ppm未満又は0.3ppm以下又は0.1ppm以下又は0.01ppm以下である請求項2に記載の方法。
- 前記液体溶鋼の初期温度が1650~1500℃である請求項1から請求項3のいずれか1項に記載の方法。
- 前記液体溶鋼中のppm酸素として測定された酸化物の初期含有量が3ppm以上である請求項1から請求項4のいずれか1項に記載の方法。
- 前記真空容器(110)が閉鎖可能な開口部(112)を含み、前記インゴット型が、前記閉鎖可能な開口部(112)を介して液体溶鋼を供給することによって充填される請求項1から請求項5のいずれか1項に記載の方法。
- 前記真空容器(110)内で減圧が優勢である間に、前記インゴット型が充填される請求項1から請求項6のいずれか1項に記載の方法。
- 前記液体溶鋼の撹拌が、液体溶鋼が前記インゴット型の底部から前記インゴット型の頂部に向かう方向及び前記インゴット型の頂部から前記インゴット型の底部に向かう方向に輸送されるように行われる請求項1から請求項7のいずれか1項に記載の方法。
- 前記撹拌装置(130)が電磁撹拌装置である請求項1から請求項8のいずれか1項に記載の方法。
- 前記液体溶鋼が、0.01~1.3重量%の量の炭素を含む請求項1から請求項9のいずれか1項に記載の方法。
- 前記液体溶鋼が、少なくとも、重量%で、Si:0~3;Mn:0~3;Cr:0~18;Ni:0~10;V:0~2;Mo:0~3;N:0~0.4の合金元素の1種以上を含む請求項1から請求項10のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1950360A SE544345C2 (en) | 2019-03-22 | 2019-03-22 | A method for manufacturing a steel ingot |
SE1950360-6 | 2019-03-22 | ||
PCT/EP2020/057771 WO2020193404A1 (en) | 2019-03-22 | 2020-03-20 | A method for manufacturing a steel ingot |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022525051A JP2022525051A (ja) | 2022-05-11 |
JP7491941B2 true JP7491941B2 (ja) | 2024-05-28 |
Family
ID=69954014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021553132A Active JP7491941B2 (ja) | 2019-03-22 | 2020-03-20 | 鋼インゴットの製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220184690A1 (ja) |
EP (1) | EP3941657B1 (ja) |
JP (1) | JP7491941B2 (ja) |
KR (1) | KR20220029543A (ja) |
CN (1) | CN113613810A (ja) |
SE (1) | SE544345C2 (ja) |
WO (1) | WO2020193404A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070272054A1 (en) | 2003-06-07 | 2007-11-29 | Fritz-Peter Pleschiutschnigg | Method and Installation for the Production of Steel Products Having an Optimum Surface Quality |
US20090288794A1 (en) | 2008-04-17 | 2009-11-26 | Michael Lynn | Method and apparatus for manufacturing metal bars or ingots |
JP2011021230A (ja) | 2009-07-15 | 2011-02-03 | Kobe Steel Ltd | 超高純度合金鋳塊の製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU421267B2 (en) * | 1967-10-03 | 1972-02-11 | Monzino Riotinto Of Australia Limited | Continuous degassing of steels |
JPH08334483A (ja) * | 1995-06-09 | 1996-12-17 | Hitachi Metals Ltd | 凝固シミュレーション装置およびその方法 |
RU2100142C1 (ru) * | 1996-05-23 | 1997-12-27 | Открытое акционерное общество "Северсталь" | Способ изготовления слитков из низкоуглеродистой стали |
WO2001094648A2 (en) * | 2000-06-05 | 2001-12-13 | Sanyo Special Steel Co., Ltd. | High-cleanliness steel and process for producing the same |
KR101384390B1 (ko) * | 2009-07-15 | 2014-04-14 | 가부시키가이샤 고베 세이코쇼 | 합금 주괴의 제조 방법 |
CN102808062B (zh) * | 2012-07-19 | 2014-03-05 | 中国科学院金属研究所 | 一种通过钢水纯净化控制钢锭a偏析的方法 |
CN103611892B (zh) * | 2013-11-25 | 2016-03-02 | 钢铁研究总院 | 一种真空碳脱氧细晶粒钢的冶炼浇注方法 |
CN103924030B (zh) * | 2014-04-09 | 2015-05-06 | 中国科学院金属研究所 | 一种超低氧纯净钢的冶炼方法 |
CN106282748B (zh) * | 2016-08-30 | 2018-02-23 | 河钢股份有限公司 | 硅钢光谱标准样品用钢的生产方法 |
-
2019
- 2019-03-22 SE SE1950360A patent/SE544345C2/en unknown
-
2020
- 2020-03-20 KR KR1020217029994A patent/KR20220029543A/ko unknown
- 2020-03-20 WO PCT/EP2020/057771 patent/WO2020193404A1/en active Application Filing
- 2020-03-20 EP EP20713573.2A patent/EP3941657B1/en active Active
- 2020-03-20 CN CN202080022514.0A patent/CN113613810A/zh active Pending
- 2020-03-20 US US17/439,860 patent/US20220184690A1/en active Pending
- 2020-03-20 JP JP2021553132A patent/JP7491941B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070272054A1 (en) | 2003-06-07 | 2007-11-29 | Fritz-Peter Pleschiutschnigg | Method and Installation for the Production of Steel Products Having an Optimum Surface Quality |
US20090288794A1 (en) | 2008-04-17 | 2009-11-26 | Michael Lynn | Method and apparatus for manufacturing metal bars or ingots |
JP2011021230A (ja) | 2009-07-15 | 2011-02-03 | Kobe Steel Ltd | 超高純度合金鋳塊の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
SE1950360A1 (en) | 2020-09-23 |
SE544345C2 (en) | 2022-04-12 |
EP3941657A1 (en) | 2022-01-26 |
EP3941657B1 (en) | 2023-02-22 |
KR20220029543A (ko) | 2022-03-08 |
WO2020193404A1 (en) | 2020-10-01 |
CN113613810A (zh) | 2021-11-05 |
JP2022525051A (ja) | 2022-05-11 |
US20220184690A1 (en) | 2022-06-16 |
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