EP2322680A4 - Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same - Google Patents

Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same

Info

Publication number
EP2322680A4
EP2322680A4 EP09805163.4A EP09805163A EP2322680A4 EP 2322680 A4 EP2322680 A4 EP 2322680A4 EP 09805163 A EP09805163 A EP 09805163A EP 2322680 A4 EP2322680 A4 EP 2322680A4
Authority
EP
European Patent Office
Prior art keywords
free
environmentally
friendly
manufacturing
same
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.)
Granted
Application number
EP09805163.4A
Other languages
German (de)
French (fr)
Other versions
EP2322680A2 (en
EP2322680B1 (en
Inventor
Sang-Bog Ahn
Hyong-Jik Lee
Ki-Ho Rhee
Duk-Lak Lee
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.)
Posco Holdings Inc
Original Assignee
Posco 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 KR1020080077067A external-priority patent/KR101027246B1/en
Priority claimed from KR1020090018464A external-priority patent/KR101091275B1/en
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP2322680A2 publication Critical patent/EP2322680A2/en
Publication of EP2322680A4 publication Critical patent/EP2322680A4/en
Application granted granted Critical
Publication of EP2322680B1 publication Critical patent/EP2322680B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Continuous Casting (AREA)
EP09805163.4A 2008-08-06 2009-08-03 Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same Not-in-force EP2322680B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020080077067A KR101027246B1 (en) 2008-08-06 2008-08-06 Free-Cutting Steel with Excellent Machinability and Manufacturing Method Thereof
KR1020090018464A KR101091275B1 (en) 2009-03-04 2009-03-04 Eco-Friendly Pb-Free Free-Cutting Steel
PCT/KR2009/004329 WO2010016702A2 (en) 2008-08-06 2009-08-03 Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same

Publications (3)

Publication Number Publication Date
EP2322680A2 EP2322680A2 (en) 2011-05-18
EP2322680A4 true EP2322680A4 (en) 2015-07-29
EP2322680B1 EP2322680B1 (en) 2016-10-26

Family

ID=41664084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09805163.4A Not-in-force EP2322680B1 (en) 2008-08-06 2009-08-03 Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same

Country Status (5)

Country Link
EP (1) EP2322680B1 (en)
JP (1) JP5277315B2 (en)
CN (1) CN102165085B (en)
TW (1) TWI391500B (en)
WO (1) WO2010016702A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703839B (en) * 2012-06-25 2014-03-26 武汉钢铁(集团)公司 High-strength free-cutting steel
CN103074466B (en) * 2013-01-05 2014-07-02 河北钢铁股份有限公司邯郸分公司 Low-cost steel-making process for manufacturing flaw detection plate
JP6489215B2 (en) * 2015-06-10 2019-03-27 新日鐵住金株式会社 Free-cutting steel
EP3492614A4 (en) * 2016-07-27 2020-01-29 Nippon Steel Corporation Steel for machine structures
CN109496239A (en) * 2016-07-27 2019-03-19 新日铁住金株式会社 Steel for mechanical structure
TWI654042B (en) 2017-02-21 2019-03-21 日商新日鐵住金股份有限公司 Steel melting method
CN109778073B (en) * 2019-02-20 2021-05-11 宝钢特钢长材有限公司 Free-cutting steel for automobile synchronizer and preparation method thereof
CN110791709B (en) * 2019-11-11 2020-12-04 广东韶钢松山股份有限公司 Structural steel wire rod and method for improving cutting performance of structural steel wire rod
CN113046631B (en) * 2021-02-22 2022-08-19 南京钢铁股份有限公司 Free-cutting non-quenched and tempered steel and preparation method thereof
CN113802058A (en) * 2021-08-17 2021-12-17 首钢集团有限公司 Low-coercivity free-cutting steel and smelting method thereof
CN114393182B (en) * 2022-01-28 2024-02-06 江苏联峰能源装备有限公司 Method for controlling sulfide morphology of free-cutting gear steel
CN114752854B (en) * 2022-03-31 2022-09-27 中天钢铁集团有限公司 Deoxidation and alloying method for smelting free-cutting steel
CN115386800B (en) * 2022-08-30 2023-10-20 鞍钢股份有限公司 Low-carbon high-manganese-sulfur environment-friendly free-cutting steel and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000160284A (en) * 1998-11-25 2000-06-13 Sumitomo Metal Ind Ltd Free-cutting steel
EP1507016A1 (en) * 2003-08-01 2005-02-16 Sumitomo Metal Industries, Ltd. Low-carbon free cutting steel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002249823A (en) * 2001-02-22 2002-09-06 Kawasaki Steel Corp Method for producing free cutting steel
CN1276985C (en) * 2001-11-30 2006-09-27 Jfe条钢株式会社 Free-cutting steel
JP3758581B2 (en) * 2002-02-04 2006-03-22 住友金属工業株式会社 Low carbon free cutting steel
JP3929029B2 (en) * 2002-03-12 2007-06-13 三菱製鋼株式会社 Sulfur-containing free-cutting steel
JP4264329B2 (en) * 2002-11-15 2009-05-13 新日本製鐵株式会社 Steel with excellent machinability
KR100708430B1 (en) * 2002-11-15 2007-04-18 신닛뽄세이테쯔 카부시키카이샤 Steel excellent in machinability and method for production thereof
JP3978394B2 (en) * 2002-12-02 2007-09-19 Ｊｆｅ条鋼株式会社 Sulfur and sulfur composite free-cutting steel with excellent machinability
CN100447273C (en) * 2003-12-01 2008-12-31 株式会社神户制钢所 Low carbon composite free-cutting steel product excellent in roughness of finished surface and method for production thereof
JP4265776B2 (en) * 2004-02-18 2009-05-20 Ｊｆｅ条鋼株式会社 Sulfur and sulfur composite free-cutting steel with excellent machinability
KR20080007386A (en) * 2005-05-30 2008-01-18 수미도모 메탈 인더스트리즈, 리미티드 Low carbon sulfur free-machining steel
JP4041511B2 (en) * 2005-10-17 2008-01-30 株式会社神戸製鋼所 Low-carbon sulfur free-cutting steel with excellent machinability

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000160284A (en) * 1998-11-25 2000-06-13 Sumitomo Metal Ind Ltd Free-cutting steel
EP1507016A1 (en) * 2003-08-01 2005-02-16 Sumitomo Metal Industries, Ltd. Low-carbon free cutting steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REYNOLDS J H ET AL: "Improving the machinability of steels for precision forging", MATERIALS AND DESIGN, LONDON, GB, vol. 13, no. 1, 1 January 1992 (1992-01-01), pages 23 - 28, XP024154023, ISSN: 0261-3069, [retrieved on 19920101], DOI: 10.1016/0261-3069(92)90048-M *

Also Published As

Publication number Publication date
CN102165085B (en) 2013-05-08
JP5277315B2 (en) 2013-08-28
EP2322680A2 (en) 2011-05-18
WO2010016702A9 (en) 2010-04-08
TWI391500B (en) 2013-04-01
JP2011530004A (en) 2011-12-15
CN102165085A (en) 2011-08-24
WO2010016702A3 (en) 2010-06-10
WO2010016702A2 (en) 2010-02-11
EP2322680B1 (en) 2016-10-26
TW201006939A (en) 2010-02-16

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