WO2010016702A3 - 친환경 무연쾌삭강 및 그 제조방법 - Google Patents

친환경 무연쾌삭강 및 그 제조방법 Download PDF

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Publication number
WO2010016702A3
WO2010016702A3 PCT/KR2009/004329 KR2009004329W WO2010016702A3 WO 2010016702 A3 WO2010016702 A3 WO 2010016702A3 KR 2009004329 W KR2009004329 W KR 2009004329W WO 2010016702 A3 WO2010016702 A3 WO 2010016702A3
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WO
WIPO (PCT)
Prior art keywords
free
manufacturing
machining steel
friendly
environmentally
Prior art date
Application number
PCT/KR2009/004329
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English (en)
French (fr)
Other versions
WO2010016702A2 (ko
WO2010016702A9 (ko
Inventor
안상복
이형직
이기호
이덕락
Original Assignee
주식회사 포스코
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/ko
Priority claimed from KR1020090018464A external-priority patent/KR101091275B1/ko
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to EP09805163.4A priority Critical patent/EP2322680B1/en
Priority to JP2011521051A priority patent/JP5277315B2/ja
Priority to CN200980138439.8A priority patent/CN102165085B/zh
Publication of WO2010016702A2 publication Critical patent/WO2010016702A2/ko
Publication of WO2010016702A9 publication Critical patent/WO2010016702A9/ko
Publication of WO2010016702A3 publication Critical patent/WO2010016702A3/ko

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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

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  • 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)
  • Continuous Casting (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Metal Rolling (AREA)

Abstract

본 발명은, 중량%로, C: 0.03 ~ 0.13%, Si: 0.1% 이하, Mn: 0.7 ~ 2.0%, P: 0.05 ~ 0.15%, S: 0.2 ~ 0.5%, B: 0.001 ~ 0.01%, Cr: 0.1 ~ 0.5%, Ti: 0.05 ~ 0.4%, N: 0.005 ~ 0.015%, O: 0.03% 이하, 잔부 Fe 및 기타 불가피한 불순물을 포함하는 무연쾌삭강에 관한 것으로, 상기 무연쾌삭강은 선재 압연방향 단면에서 입자 크기 5㎛2 이상의 MnS 개재물이 소재 mm2당 300~1000개 범위로 존재할 수 있다. 또한, 본 발명은 이를 위하여 강재 제조 단계에서 전산소량을 단계별로 적절히 제어하여 친환경적인 무연쾌삭강을 제조하는 방법에 관한 것이다.
PCT/KR2009/004329 2008-08-06 2009-08-03 친환경 무연쾌삭강 및 그 제조방법 WO2010016702A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09805163.4A EP2322680B1 (en) 2008-08-06 2009-08-03 Environmentally-friendly, pb-free free-machining steel, and manufacturing method for same
JP2011521051A JP5277315B2 (ja) 2008-08-06 2009-08-03 環境に優しい無鉛快削鋼及びその製造方法
CN200980138439.8A CN102165085B (zh) 2008-08-06 2009-08-03 环境友好不含Pb的快速切削钢及其制备方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020080077067A KR101027246B1 (ko) 2008-08-06 2008-08-06 절삭성이 우수한 친환경 무연쾌삭강 및 그 제조방법
KR10-2008-0077067 2008-08-06
KR1020090018464A KR101091275B1 (ko) 2009-03-04 2009-03-04 친환경 무연쾌삭강
KR10-2009-0018464 2009-03-04

Publications (3)

Publication Number Publication Date
WO2010016702A2 WO2010016702A2 (ko) 2010-02-11
WO2010016702A9 WO2010016702A9 (ko) 2010-04-08
WO2010016702A3 true WO2010016702A3 (ko) 2010-06-10

Family

ID=41664084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/004329 WO2010016702A2 (ko) 2008-08-06 2009-08-03 친환경 무연쾌삭강 및 그 제조방법

Country Status (5)

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

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* Cited by examiner, † Cited by third party
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CN102703839B (zh) * 2012-06-25 2014-03-26 武汉钢铁(集团)公司 一种高强度易切削钢
CN103074466B (zh) * 2013-01-05 2014-07-02 河北钢铁股份有限公司邯郸分公司 一种生产探伤板的低成本炼钢工艺
EP3309272A4 (en) * 2015-06-10 2018-10-24 Nippon Steel & Sumitomo Metal Corporation Free-cutting steel
EP3492615A4 (en) * 2016-07-27 2019-12-25 Nippon Steel Corporation STEEL FOR MACHINE STRUCTURES
WO2018021451A1 (ja) * 2016-07-27 2018-02-01 新日鐵住金株式会社 機械構造用鋼
TWI654042B (zh) 2017-02-21 2019-03-21 日商新日鐵住金股份有限公司 鋼之熔製方法
CN109778073B (zh) * 2019-02-20 2021-05-11 宝钢特钢长材有限公司 一种易切削汽车同步器用钢及其制备方法
CN110791709B (zh) * 2019-11-11 2020-12-04 广东韶钢松山股份有限公司 结构钢线材、改善结构钢线材切削性能的方法
CN112342464B (zh) 2020-10-19 2021-07-27 中天钢铁集团有限公司 一种oa轴用易切削钢热轧盘条的生产方法
CN113046631B (zh) * 2021-02-22 2022-08-19 南京钢铁股份有限公司 易切削非调质钢及其制备方法
CN113802058A (zh) * 2021-08-17 2021-12-17 首钢集团有限公司 一种低矫顽力易切削钢及其冶炼方法
CN114393182B (zh) * 2022-01-28 2024-02-06 江苏联峰能源装备有限公司 一种易切削齿轮钢硫化物形态的控制方法
CN114752854B (zh) * 2022-03-31 2022-09-27 中天钢铁集团有限公司 一种易切削钢冶炼的脱氧和合金化方法
CN115386800B (zh) * 2022-08-30 2023-10-20 鞍钢股份有限公司 一种低碳高锰硫环保型易切削钢及其制造方法

Citations (4)

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JP2002249823A (ja) * 2001-02-22 2002-09-06 Kawasaki Steel Corp 快削鋼の製造方法
KR20050016017A (ko) * 2003-08-01 2005-02-21 스미토모 긴조쿠 고교 가부시키가이샤 저탄소 쾌삭강
KR20050075019A (ko) * 2002-11-15 2005-07-19 신닛뽄세이테쯔 카부시키카이샤 피삭성이 우수한 강과 그 제조 방법
JP2007107078A (ja) * 2005-10-17 2007-04-26 Kobe Steel Ltd 被削性に優れた低炭素硫黄快削鋼

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JP3687370B2 (ja) * 1998-11-25 2005-08-24 住友金属工業株式会社 快削鋼
TW583315B (en) * 2001-11-30 2004-04-11 Nkk Bars & Shapes Co Ltd Free cutting steel
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JP2002249823A (ja) * 2001-02-22 2002-09-06 Kawasaki Steel Corp 快削鋼の製造方法
KR20050075019A (ko) * 2002-11-15 2005-07-19 신닛뽄세이테쯔 카부시키카이샤 피삭성이 우수한 강과 그 제조 방법
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Title
See also references of EP2322680A4 *

Also Published As

Publication number Publication date
CN102165085A (zh) 2011-08-24
WO2010016702A2 (ko) 2010-02-11
EP2322680B1 (en) 2016-10-26
JP5277315B2 (ja) 2013-08-28
WO2010016702A9 (ko) 2010-04-08
TW201006939A (en) 2010-02-16
JP2011530004A (ja) 2011-12-15
TWI391500B (zh) 2013-04-01
EP2322680A4 (en) 2015-07-29
EP2322680A2 (en) 2011-05-18
CN102165085B (zh) 2013-05-08

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