KR20090010926A - 피로 특성이 우수한 용수철용 선재 - Google Patents
피로 특성이 우수한 용수철용 선재 Download PDFInfo
- Publication number
- KR20090010926A KR20090010926A KR1020080071646A KR20080071646A KR20090010926A KR 20090010926 A KR20090010926 A KR 20090010926A KR 1020080071646 A KR1020080071646 A KR 1020080071646A KR 20080071646 A KR20080071646 A KR 20080071646A KR 20090010926 A KR20090010926 A KR 20090010926A
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- South Korea
- Prior art keywords
- less
- wire rod
- tin
- inclusions
- maximum thickness
- Prior art date
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 230000000007 visual effect Effects 0.000 claims abstract description 25
- 239000012535 impurity Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000009661 fatigue test Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 20
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 11
- 230000006378 damage Effects 0.000 description 7
- 229910001566 austenite Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910000639 Spring steel Inorganic materials 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000004453 electron probe microanalysis Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 Fe 23 (CB) 6 Chemical class 0.000 description 1
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000376 effect on fatigue Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Images
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- 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
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- 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
- C22C38/04—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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
- Y10S148/908—Spring
Abstract
Description
Claims (7)
- C : 0.35~0.70%(질량%를 의미, 이하 동일),Si : 1.5~2.5%,Mn : 0.05~1.5%,Cr : 0.1~2%,Ti : 0.0010~0.10%, 및Al : 0.001~0.05%를 함유하고,잔부가 철 및 불가피한 불순물로 이루어지며,그 선재의 중심을 지나는 종단면에서, 선재 표면으로부터 깊이 D/4(㎜)(D : 선재의 직경)까지를 1변으로 하고, 선재의 긴 방향의 길이 20(㎜)을 1변으로 하는 사변형의 관찰 영역을 선재의 양 표면측의 2부분에서 설정하여, 이 2부분의 관찰 영역을 합쳐 1시야로 하는 것으로 하고,20 이상의 시야에서 TiN계 개재물의 최대 두께를 측정하여, 이 최대 두께가 5㎛ 이하가 되는 것, 5㎛를 초과하고 10㎛ 이하가 되는 것, 10㎛를 초과하고 25㎛ 이하가 되는 것, 25㎛를 초과하는 것의 4클래스로 각 시야를 분류했을 때, 각각의 클래스의 시야의 비율이, 전체 시야수에 대하여 이하와 같은 용수철용 선재.(1) 최대 두께가 5㎛ 이하인 시야 : 5% 미만(2) 최대 두께가 5㎛를 초과하고 10㎛ 이하인 시야 : 30% 이하(3) 최대 두께가 10㎛를 초과하고 25㎛ 이하인 시야 : 70% 이상(4) 최대 두께가 25㎛를 초과하는 시야 : 5% 미만
- 제 1 항에 있어서,상기 선재로부터 채취한 시험편 50개를, 조질한 후, 부하 응력 750㎫에서 오노식 회전 굽힘 피로 시험을 행하여, TiN계 개재물을 기점으로 하여 가장 빨리 절손된 시험편의 파단면을 주사형 전자 현미경으로 관찰하여, 파괴 기점 개재물의 크기를 조사했을 때, 그 장직경이 30㎛ 이하이고, 종횡비가 4.0 이하인 용수철용 선재.
- 제 1 항에 있어서,상기 불가피한 불순물에는, N, O, P, S가 포함되고, 그 허용량이 N : 0.006% 이하, O : 0.001% 이하, P : 0.015% 이하, S : 0.015% 이하인 용수철용 선재.
- 제 1 항에 있어서,Cu : 0.7% 이하 및 Ni : 0.8% 이하중 적어도 한쪽을 더 함유하는 용수철용 선재.
- 제 1 항에 있어서,V : 0.4% 이하 및 Nb : 0.1% 이하중 적어도 한쪽을 더 함유하는 용수철용 선 재.
- 제 1 항에 있어서,Mo : 0.5% 이하를 더 함유하는 용수철용 선재.
- 제 1 항에 있어서,B : 0.005% 이하를 더 함유하는 용수철용 선재.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2007-00191234 | 2007-07-23 | ||
JP2007191234A JP4694537B2 (ja) | 2007-07-23 | 2007-07-23 | 疲労特性に優れたばね用線材 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090010926A true KR20090010926A (ko) | 2009-01-30 |
KR101040858B1 KR101040858B1 (ko) | 2011-06-14 |
Family
ID=39713974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080071646A KR101040858B1 (ko) | 2007-07-23 | 2008-07-23 | 피로 특성이 우수한 용수철용 선재 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7901520B2 (ko) |
EP (1) | EP2022867B1 (ko) |
JP (1) | JP4694537B2 (ko) |
KR (1) | KR101040858B1 (ko) |
CN (1) | CN101353767B (ko) |
DE (1) | DE602008002657D1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101408406B1 (ko) * | 2010-10-29 | 2014-06-17 | 가부시키가이샤 고베 세이코쇼 | 신선 가공성이 우수한 고탄소강 선재 |
KR20150108043A (ko) * | 2011-08-18 | 2015-09-24 | 신닛테츠스미킨 카부시키카이샤 | 스프링 강 및 스프링 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4310359B2 (ja) * | 2006-10-31 | 2009-08-05 | 株式会社神戸製鋼所 | 疲労特性と伸線性に優れた硬引きばね用鋼線 |
BR112013004944A2 (pt) * | 2010-08-30 | 2016-08-16 | Kobe Steel Ltd | vergalhão de arame de aço para mola de alta resistência excelente na capacidade de trefilação do arame, método de fabricação para ele e mola de alta resistência |
CN102884212A (zh) | 2010-10-06 | 2013-01-16 | 新日铁住金株式会社 | 表面硬化钢及其制造方法 |
JP5671400B2 (ja) | 2011-03-31 | 2015-02-18 | 株式会社神戸製鋼所 | 伸線加工性および伸線後の疲労特性に優れたばね用鋼線材、ならびに疲労特性およびばね加工性に優れたばね用鋼線 |
CN102943214B (zh) * | 2012-11-16 | 2014-10-08 | 武汉钢铁(集团)公司 | 一种汽车用冷轧膜片弹簧钢的生产方法 |
JP6036396B2 (ja) * | 2013-02-25 | 2016-11-30 | 新日鐵住金株式会社 | 耐腐食特性に優れたばね用鋼およびばね用鋼材 |
JP6212473B2 (ja) * | 2013-12-27 | 2017-10-11 | 株式会社神戸製鋼所 | 高強度ばね用圧延材及びこれを用いた高強度ばね用ワイヤ |
KR101830023B1 (ko) * | 2014-04-23 | 2018-02-19 | 신닛테츠스미킨 카부시키카이샤 | 스프링강 및 그 제조 방법 |
US10385427B2 (en) | 2014-12-15 | 2019-08-20 | Nippon Steel Corporation | Wire rod |
CN105385940B (zh) * | 2015-12-15 | 2018-10-30 | 安徽楚江特钢有限公司 | 一种弹簧钢合金生产工艺 |
CN106893948A (zh) * | 2017-01-19 | 2017-06-27 | 辽宁通达建材实业有限公司 | 一种耐腐蚀预应力管道用钢丝 |
CN110646580A (zh) * | 2019-05-22 | 2020-01-03 | 广东韶钢松山股份有限公司 | 一种弹簧钢盘条非金属夹杂物的检测方法 |
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JPS62170460A (ja) * | 1986-01-21 | 1987-07-27 | Honda Motor Co Ltd | 高強度弁ばね用鋼及びその製造方法 |
JPH02163319A (ja) * | 1988-12-16 | 1990-06-22 | Nippon Steel Corp | 高靭性鋼の製造方法および高靭性鋼部品の製造方法 |
JPH032352A (ja) * | 1989-05-29 | 1991-01-08 | Nippon Steel Corp | 高疲労強度ばね鋼線及び冷間成型ばね用鋼線の製造方法 |
JPH06158226A (ja) * | 1992-11-24 | 1994-06-07 | Nippon Steel Corp | 疲労特性に優れたばね用鋼 |
US6224686B1 (en) * | 1998-02-27 | 2001-05-01 | Chuo Hatsujo Kabushiki Kaisha | High-strength valve spring and it's manufacturing method |
JP3595901B2 (ja) * | 1998-10-01 | 2004-12-02 | 鈴木金属工業株式会社 | 高強度ばね用鋼線およびその製造方法 |
JP3504521B2 (ja) | 1998-12-15 | 2004-03-08 | 株式会社神戸製鋼所 | 疲労特性に優れたばね用鋼 |
JP2003105496A (ja) * | 2001-09-26 | 2003-04-09 | Daido Steel Co Ltd | 低脱炭及び耐遅れ破壊性に優れたばね鋼 |
JP3763573B2 (ja) * | 2002-11-21 | 2006-04-05 | 三菱製鋼株式会社 | 焼入れ性と耐孔食性を改善したばね用鋼 |
JP2004232053A (ja) * | 2003-01-31 | 2004-08-19 | Nippon Steel Corp | 耐疲労特性の優れたばね鋼線材と耐疲労特性の判定方法 |
JP3888333B2 (ja) | 2003-06-13 | 2007-02-28 | 住友金属工業株式会社 | 高強度鋼材及びその製造方法 |
KR100764253B1 (ko) * | 2005-01-28 | 2007-10-05 | 가부시키가이샤 고베 세이코쇼 | 내수소취화 특성이 우수한 고강도 스프링용 강 |
JP4515347B2 (ja) * | 2005-07-22 | 2010-07-28 | 株式会社神戸製鋼所 | ばね用鋼線材およびばね用鋼線の耐疲労性の判定方法 |
JP4423253B2 (ja) | 2005-11-02 | 2010-03-03 | 株式会社神戸製鋼所 | 耐水素脆化特性に優れたばね用鋼、並びに該鋼から得られる鋼線及びばね |
FR2894987B1 (fr) | 2005-12-15 | 2008-03-14 | Ascometal Sa | Acier a ressorts, et procede de fabrication d'un ressort utilisant cet acier, et ressort realise en un tel acier |
-
2007
- 2007-07-23 JP JP2007191234A patent/JP4694537B2/ja not_active Expired - Fee Related
-
2008
- 2008-06-26 US US12/146,755 patent/US7901520B2/en not_active Expired - Fee Related
- 2008-07-03 CN CN2008101357133A patent/CN101353767B/zh not_active Expired - Fee Related
- 2008-07-07 DE DE602008002657T patent/DE602008002657D1/de active Active
- 2008-07-07 EP EP08012258A patent/EP2022867B1/en not_active Expired - Fee Related
- 2008-07-23 KR KR1020080071646A patent/KR101040858B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101408406B1 (ko) * | 2010-10-29 | 2014-06-17 | 가부시키가이샤 고베 세이코쇼 | 신선 가공성이 우수한 고탄소강 선재 |
US9994940B2 (en) | 2010-10-29 | 2018-06-12 | Kobe Steel, Ltd. | High carbon steel wire rod having excellent drawability |
KR20150108043A (ko) * | 2011-08-18 | 2015-09-24 | 신닛테츠스미킨 카부시키카이샤 | 스프링 강 및 스프링 |
Also Published As
Publication number | Publication date |
---|---|
EP2022867A1 (en) | 2009-02-11 |
US7901520B2 (en) | 2011-03-08 |
KR101040858B1 (ko) | 2011-06-14 |
DE602008002657D1 (de) | 2010-11-04 |
CN101353767B (zh) | 2012-07-04 |
JP4694537B2 (ja) | 2011-06-08 |
US20090025832A1 (en) | 2009-01-29 |
CN101353767A (zh) | 2009-01-28 |
JP2009024245A (ja) | 2009-02-05 |
EP2022867B1 (en) | 2010-09-22 |
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