JP2018520004A - モールドフラックス及びこれを用いた連続鋳造方法、及びこれで製作された鋳片 - Google Patents
モールドフラックス及びこれを用いた連続鋳造方法、及びこれで製作された鋳片 Download PDFInfo
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- JP2018520004A JP2018520004A JP2017556953A JP2017556953A JP2018520004A JP 2018520004 A JP2018520004 A JP 2018520004A JP 2017556953 A JP2017556953 A JP 2017556953A JP 2017556953 A JP2017556953 A JP 2017556953A JP 2018520004 A JP2018520004 A JP 2018520004A
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- Prior art keywords
- slab
- mold flux
- molten steel
- continuous casting
- oxide
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- 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
-
- 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
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
Claims (11)
- モールドフラックスとして、
SiO2、CaO、MgO、Al2O3、Na2O、F、及びニッケル(Ni)酸化物を含有する組成物を含み、
前記ニッケル(Ni)酸化物は、前記組成物の全体重量に対して5wt%〜40wt%の範囲で含有される、モールドフラックス。 - 前記組成物の全体重量に対して、前記MgOを1.0〜1.5wt%、前記Al2O3を5〜7wt%、前記Na2Oを3〜5wt%、前記Fを5〜7wt%含み、その他はCaO及びSiO2を含む、請求項1に記載のモールドフラックス。
- 前記CaO/SiO2は0.8〜1.4の比で構成される、請求項2に記載のモールドフラックス。
- モールドに溶鋼を供給して鋳片を製造する連続鋳造方法として、
前記溶鋼の上部にSiO2、CaO、MgO、Al2O3、Na2O、F、及びニッケル(Ni)酸化物を含むモールドフラックスを供給しながら鋳片の表面に前記ニッケル酸化物によるコーティング層を形成し、
前記ニッケル酸化物は、前記モールドフラックスの全体重量に対して5wt%〜40wt%の範囲で含有される、連続鋳造方法。 - 前記溶鋼は銅を含む、請求項4に記載の連続鋳造方法。
- 前記モールドフラックスは、全体重量に対してwt%で、前記MgOを1.0〜1.5wt%、前記Al2O3を5〜7wt%、前記Na2Oを3〜5wt%、前記Fを5〜7wt%、及びその他は、前記SiO2及びCaOを含む、請求項5に記載の連続鋳造方法。
- 前記CaO及びSiO2は、0.8〜1.4の比で構成される、請求項6に記載の連続鋳造方法。
- 前記モールドフラックスは、前記溶鋼のトン当たり0.1kg〜1kgの範囲で投入される請求項4に記載の連続鋳造方法。
- 溶鋼の鋳造で製作された鋳片として、
厚さ方向を基準に前記鋳片の最外郭から内側への表面部及び前記表面部から前記鋳片の中心までの中心部を含み、
前記表面部は、前記中心部よりもNi濃度が高い鋳片。 - 前記表面部のNi濃度は、Cu含有量の1.5倍以上である、請求項9に記載の鋳片。
- 前記鋼はFe:残部、C:0.01〜0.4wt%、Cu:0.1〜2wt%以下、Si:0.1〜2wt%以下、Mn:0.1〜2wt%以下、及びその他の不可避成分で構成される、請求項10に記載の鋳片。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2015-0062686 | 2015-05-04 | ||
KR1020150062686A KR101742077B1 (ko) | 2015-05-04 | 2015-05-04 | 몰드 플럭스 및 이를 이용한 연속 주조 방법 및 이로 제작된 주편 |
PCT/KR2015/008957 WO2016178461A2 (ko) | 2015-05-04 | 2015-08-26 | 몰드 플럭스 및 이를 이용한 연속 주조 방법 및 이로 제작된 주편 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018520004A true JP2018520004A (ja) | 2018-07-26 |
JP6788611B2 JP6788611B2 (ja) | 2020-11-25 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2017556953A Active JP6788611B2 (ja) | 2015-05-04 | 2015-08-26 | モールドフラックス及びこれを用いた連続鋳造方法、及びこれで製作された鋳片 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3292925B1 (ja) |
JP (1) | JP6788611B2 (ja) |
KR (1) | KR101742077B1 (ja) |
CN (1) | CN107530769B (ja) |
WO (1) | WO2016178461A2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102034424B1 (ko) * | 2017-11-24 | 2019-10-18 | 주식회사 포스코 | 몰드플럭스, 강재, 및 강재 제조방법 |
KR102034448B1 (ko) * | 2017-12-20 | 2019-10-18 | 주식회사 포스코 | 강재 및 이의 제조 방법 |
KR102179557B1 (ko) * | 2018-10-29 | 2020-11-16 | 주식회사 포스코 | 주형 및 주조 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6072653A (ja) * | 1983-09-30 | 1985-04-24 | Kawasaki Steel Corp | 連続鋳造用モ−ルドパウダ− |
JPH0852550A (ja) * | 1994-08-11 | 1996-02-27 | Sumitomo Metal Ind Ltd | 鋼の連続鋳造用モールドパウダー |
JPH08290235A (ja) * | 1995-04-18 | 1996-11-05 | Nippon Steel Corp | 連鋳鋳片の製造方法 |
JP2004202523A (ja) * | 2002-12-24 | 2004-07-22 | Jfe Steel Kk | 連続鋳造方法及び該方法で製造された連続鋳造鋳片 |
JP2006289383A (ja) * | 2005-04-06 | 2006-10-26 | Sumitomo Metal Ind Ltd | 鋼の連続鋳造用モールドフラックス。 |
Family Cites Families (6)
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EP0015417B1 (de) * | 1979-02-23 | 1983-04-13 | Mobay Chemical Corporation | Feinteiliges Verschlackungsmittel und Verfahren zum Stranggiessen von Stahl |
JP3261554B2 (ja) * | 1994-04-01 | 2002-03-04 | 新日本製鐵株式会社 | 含Cu,Sn鋼の連続鋳造パウダー |
JP3574427B2 (ja) * | 2001-09-19 | 2004-10-06 | 日本冶金工業株式会社 | TiおよびAl含有鋼用連続鋳造パウダーおよび連続鋳造方法 |
KR20040051175A (ko) * | 2002-12-12 | 2004-06-18 | 주식회사 포스코 | 저탄소강 주편의 표면 결함을 방지하기 위한 연속 주조용몰드 플럭스 |
KR101331320B1 (ko) * | 2011-12-23 | 2013-11-20 | 주식회사 포스코 | 용융 몰드 플럭스를 이용한 고속 주조 방법 |
CN104353796A (zh) * | 2014-11-13 | 2015-02-18 | 武汉钢铁(集团)公司 | 含多种玻璃着色剂的包晶钢保护渣 |
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2015
- 2015-05-04 KR KR1020150062686A patent/KR101742077B1/ko active IP Right Grant
- 2015-08-26 EP EP15891325.1A patent/EP3292925B1/en active Active
- 2015-08-26 JP JP2017556953A patent/JP6788611B2/ja active Active
- 2015-08-26 WO PCT/KR2015/008957 patent/WO2016178461A2/ko unknown
- 2015-08-26 CN CN201580079640.9A patent/CN107530769B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6072653A (ja) * | 1983-09-30 | 1985-04-24 | Kawasaki Steel Corp | 連続鋳造用モ−ルドパウダ− |
JPH0852550A (ja) * | 1994-08-11 | 1996-02-27 | Sumitomo Metal Ind Ltd | 鋼の連続鋳造用モールドパウダー |
JPH08290235A (ja) * | 1995-04-18 | 1996-11-05 | Nippon Steel Corp | 連鋳鋳片の製造方法 |
JP2004202523A (ja) * | 2002-12-24 | 2004-07-22 | Jfe Steel Kk | 連続鋳造方法及び該方法で製造された連続鋳造鋳片 |
JP2006289383A (ja) * | 2005-04-06 | 2006-10-26 | Sumitomo Metal Ind Ltd | 鋼の連続鋳造用モールドフラックス。 |
Also Published As
Publication number | Publication date |
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KR20160130648A (ko) | 2016-11-14 |
WO2016178461A3 (ko) | 2017-05-18 |
KR101742077B1 (ko) | 2017-05-31 |
CN107530769A (zh) | 2018-01-02 |
WO2016178461A2 (ko) | 2016-11-10 |
CN107530769B (zh) | 2021-05-11 |
EP3292925A4 (en) | 2018-03-28 |
EP3292925B1 (en) | 2020-02-12 |
EP3292925A2 (en) | 2018-03-14 |
JP6788611B2 (ja) | 2020-11-25 |
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