GB2406580B - High-cleanliness steel and process for producing the same - Google Patents

High-cleanliness steel and process for producing the same

Info

Publication number
GB2406580B
GB2406580B GB0500783A GB0500783A GB2406580B GB 2406580 B GB2406580 B GB 2406580B GB 0500783 A GB0500783 A GB 0500783A GB 0500783 A GB0500783 A GB 0500783A GB 2406580 B GB2406580 B GB 2406580B
Authority
GB
United Kingdom
Prior art keywords
producing
same
cleanliness steel
cleanliness
steel
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 - Lifetime
Application number
GB0500783A
Other versions
GB0500783D0 (en
GB2406580A (en
Inventor
Ichiro Sato
Kaichiro Ishido
Tomomi Mori
Toshihiro Irie
Kazuya Kodama
Kiyoshi Kawakami
Shuhei Kitano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Special Steel Co Ltd
Original Assignee
Sanyo Special Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2000167086A external-priority patent/JP4562244B2/en
Priority claimed from JP2000167085A external-priority patent/JP2001342512A/en
Priority claimed from JP2000167087A external-priority patent/JP2001342514A/en
Priority claimed from JP2000167089A external-priority patent/JP2001342515A/en
Priority claimed from JP2000167088A external-priority patent/JP2001342516A/en
Priority to GB0509772A priority Critical patent/GB2410253B/en
Priority to GB0509770A priority patent/GB2410252B/en
Priority to GB0509771A priority patent/GB2410503B/en
Application filed by Sanyo Special Steel Co Ltd filed Critical Sanyo Special Steel Co Ltd
Priority claimed from GB0228813A external-priority patent/GB2381537B/en
Publication of GB0500783D0 publication Critical patent/GB0500783D0/en
Publication of GB2406580A publication Critical patent/GB2406580A/en
Application granted granted Critical
Publication of GB2406580B publication Critical patent/GB2406580B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
GB0500783A 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same Expired - Lifetime GB2406580B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0509771A GB2410503B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same
GB0509770A GB2410252B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same
GB0509772A GB2410253B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2000167088A JP2001342516A (en) 2000-06-05 2000-06-05 Highly clean steel and production method
JP2000167089A JP2001342515A (en) 2000-06-05 2000-06-05 Highly clean steel and production method
JP2000167085A JP2001342512A (en) 2000-06-05 2000-06-05 Highly clean steel and production method
JP2000167087A JP2001342514A (en) 2000-06-05 2000-06-05 Highly clean steel and production method
JP2000167086A JP4562244B2 (en) 2000-06-05 2000-06-05 Manufacturing method of high cleanliness steel
GB0228813A GB2381537B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same

Publications (3)

Publication Number Publication Date
GB0500783D0 GB0500783D0 (en) 2005-02-23
GB2406580A GB2406580A (en) 2005-04-06
GB2406580B true GB2406580B (en) 2005-09-07

Family

ID=34280182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0500783A Expired - Lifetime GB2406580B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same

Country Status (1)

Country Link
GB (1) GB2406580B (en)

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1117005A (en) * 1965-07-16 1968-06-12 Fuji Iron & Steel Company Ltd Process for the production of a stainless steel by vacuum treatment
US4152140A (en) * 1976-07-28 1979-05-01 Nippon Steel Corporation Method for producing killed steels for continuous casting
US4544405A (en) * 1983-09-02 1985-10-01 M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Method of producing steels of great purity and low gas content in steel mills and steel foundries and apparatus therefor
EP0163784A1 (en) * 1984-05-25 1985-12-11 China Steel Corporation Two stage deoxidation process in steel-making
JPS6263650A (en) * 1985-09-13 1987-03-20 Aichi Steel Works Ltd Bearing steel and its production
JPS6396210A (en) * 1986-10-09 1988-04-27 Sumitomo Metal Ind Ltd Pre-deoxidizing method in converter interior
EP0325242A2 (en) * 1988-01-21 1989-07-26 Nkk Corporation Method for refining molten steel in a vacuum
JPH02179813A (en) * 1988-12-28 1990-07-12 Nippon Steel Corp Method for refining molten metal into high purity and high cleanliness
JPH0339412A (en) * 1989-07-07 1991-02-20 Sumitomo Metal Ind Ltd Method for refining molten metal
EP0548868A2 (en) * 1991-12-24 1993-06-30 Kawasaki Steel Corporation Method of refining of high purity steel
JPH05331523A (en) * 1992-06-03 1993-12-14 Kawasaki Steel Corp Method for refining molten steel for bearing steel
JPH06145883A (en) * 1992-11-02 1994-05-27 Daido Steel Co Ltd High purity bearing steel and its production
JPH06192790A (en) * 1992-12-26 1994-07-12 Aichi Steel Works Ltd High cleanliness bearing steel
JPH10237533A (en) * 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd Production of hic resistant steel
JPH1192811A (en) * 1997-09-12 1999-04-06 Sumitomo Metal Ind Ltd Refinement of molten metal
JP2000129335A (en) * 1998-10-20 2000-05-09 Nkk Corp Production of extra-low sulfur steel excellent in cleanliness
JP2001064718A (en) * 1999-08-30 2001-03-13 Kawasaki Steel Corp METHOD FOR ADJUSTING Al CONCENTRATION IN HIGH Si- CONTAINING MOLTEN STEEL

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1117005A (en) * 1965-07-16 1968-06-12 Fuji Iron & Steel Company Ltd Process for the production of a stainless steel by vacuum treatment
US4152140A (en) * 1976-07-28 1979-05-01 Nippon Steel Corporation Method for producing killed steels for continuous casting
US4544405A (en) * 1983-09-02 1985-10-01 M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Method of producing steels of great purity and low gas content in steel mills and steel foundries and apparatus therefor
EP0163784A1 (en) * 1984-05-25 1985-12-11 China Steel Corporation Two stage deoxidation process in steel-making
JPS6263650A (en) * 1985-09-13 1987-03-20 Aichi Steel Works Ltd Bearing steel and its production
JPS6396210A (en) * 1986-10-09 1988-04-27 Sumitomo Metal Ind Ltd Pre-deoxidizing method in converter interior
EP0325242A2 (en) * 1988-01-21 1989-07-26 Nkk Corporation Method for refining molten steel in a vacuum
JPH02179813A (en) * 1988-12-28 1990-07-12 Nippon Steel Corp Method for refining molten metal into high purity and high cleanliness
JPH0339412A (en) * 1989-07-07 1991-02-20 Sumitomo Metal Ind Ltd Method for refining molten metal
EP0548868A2 (en) * 1991-12-24 1993-06-30 Kawasaki Steel Corporation Method of refining of high purity steel
JPH05331523A (en) * 1992-06-03 1993-12-14 Kawasaki Steel Corp Method for refining molten steel for bearing steel
JPH06145883A (en) * 1992-11-02 1994-05-27 Daido Steel Co Ltd High purity bearing steel and its production
JPH06192790A (en) * 1992-12-26 1994-07-12 Aichi Steel Works Ltd High cleanliness bearing steel
JPH10237533A (en) * 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd Production of hic resistant steel
JPH1192811A (en) * 1997-09-12 1999-04-06 Sumitomo Metal Ind Ltd Refinement of molten metal
JP2000129335A (en) * 1998-10-20 2000-05-09 Nkk Corp Production of extra-low sulfur steel excellent in cleanliness
JP2001064718A (en) * 1999-08-30 2001-03-13 Kawasaki Steel Corp METHOD FOR ADJUSTING Al CONCENTRATION IN HIGH Si- CONTAINING MOLTEN STEEL

Also Published As

Publication number Publication date
GB0500783D0 (en) 2005-02-23
GB2406580A (en) 2005-04-06

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20210604