GB2410253B - High-cleanliness steel and process for producing the same - Google Patents

High-cleanliness steel and process for producing the same

Info

Publication number
GB2410253B
GB2410253B GB0509772A GB0509772A GB2410253B GB 2410253 B GB2410253 B GB 2410253B GB 0509772 A GB0509772 A GB 0509772A GB 0509772 A GB0509772 A GB 0509772A GB 2410253 B GB2410253 B GB 2410253B
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 - Fee Related
Application number
GB0509772A
Other versions
GB0509772D0 (en
GB2410253A (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 JP2000167089A external-priority patent/JP2001342515A/en
Priority claimed from JP2000167085A external-priority patent/JP2001342512A/en
Priority claimed from JP2000167088A external-priority patent/JP2001342516A/en
Priority claimed from JP2000167087A external-priority patent/JP2001342514A/en
Application filed by Sanyo Special Steel Co Ltd filed Critical Sanyo Special Steel Co Ltd
Priority claimed from GB0500783A external-priority patent/GB2406580B/en
Publication of GB0509772D0 publication Critical patent/GB0509772D0/en
Publication of GB2410253A publication Critical patent/GB2410253A/en
Application granted granted Critical
Publication of GB2410253B publication Critical patent/GB2410253B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C21C7/10—Handling in a 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
GB0509772A 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same Expired - Fee Related GB2410253B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
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
JP2000167088A JP2001342516A (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
GB0500783A GB2406580B (en) 2000-06-05 2001-06-05 High-cleanliness steel and process for producing the same

Publications (3)

Publication Number Publication Date
GB0509772D0 GB0509772D0 (en) 2005-06-22
GB2410253A GB2410253A (en) 2005-07-27
GB2410253B true GB2410253B (en) 2005-09-14

Family

ID=34743970

Family Applications (3)

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

Family Applications After (2)

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

Country Status (1)

Country Link
GB (3) GB2410253B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8613809B2 (en) 2006-06-09 2013-12-24 Kobe Steel, Ltd. High cleanliness spring steel and high cleanliness spring excellent in fatigue properties
CN102808062B (en) * 2012-07-19 2014-03-05 中国科学院金属研究所 Method for controlling A segregation of steel ingots by purification of molten steel
CN114875197B (en) * 2022-05-10 2023-11-14 江苏利淮钢铁有限公司 Technological method for controlling inclusion types in steel to improve purity of molten steel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH1192811A (en) * 1997-09-12 1999-04-06 Sumitomo Metal Ind Ltd Refinement of molten metal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347718C2 (en) * 1983-09-02 1986-05-28 Ulrich Dipl.-Ing. 5905 Freudenberg Glasmeyer Process for the production of steels with a high degree of purity and low gas content in steelworks and steel foundries
EP0163784B1 (en) * 1984-05-25 1989-11-02 China Steel Corporation Two stage deoxidation process in steel-making
JPS6396210A (en) * 1986-10-09 1988-04-27 Sumitomo Metal Ind Ltd Pre-deoxidizing method in converter interior
JPH01188619A (en) * 1988-01-21 1989-07-27 Nkk Corp Method for rh vacuum degasification
US5304231A (en) * 1991-12-24 1994-04-19 Kawasaki Steel Corporation Method of refining of high purity steel
JPH10237533A (en) * 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd Production of hic resistant steel
JP3885387B2 (en) * 1998-10-20 2007-02-21 Ｊｆｅスチール株式会社 Method for producing ultra-low sulfur steel with excellent cleanability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH1192811A (en) * 1997-09-12 1999-04-06 Sumitomo Metal Ind Ltd Refinement of molten metal

Also Published As

Publication number Publication date
GB0509771D0 (en) 2005-06-22
GB2410503A (en) 2005-08-03
GB0509770D0 (en) 2005-06-22
GB2410252A (en) 2005-07-27
GB2410252B (en) 2005-09-07
GB0509772D0 (en) 2005-06-22
GB2410253A (en) 2005-07-27
GB2410503B (en) 2005-09-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170605