KR101040858B1 - 피로 특성이 우수한 용수철용 선재 - Google Patents
피로 특성이 우수한 용수철용 선재 Download PDFInfo
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- KR101040858B1 KR101040858B1 KR1020080071646A KR20080071646A KR101040858B1 KR 101040858 B1 KR101040858 B1 KR 101040858B1 KR 1020080071646 A KR1020080071646 A KR 1020080071646A KR 20080071646 A KR20080071646 A KR 20080071646A KR 101040858 B1 KR101040858 B1 KR 101040858B1
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- Prior art keywords
- less
- wire rod
- tin
- maximum thickness
- inclusions
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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 23
- 238000012360 testing method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 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
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 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
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
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 기점이 되는 TiN계 개재물의 크기를 조사했을 때, 그의 최대 두께가 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 : 0.01~0.7% 및 Ni : 0.05~0.8% 중 적어도 한쪽을 더 함유하는 용수철용 선재.
- 제 1 항에 있어서,V : 0.07~0.4% 및 Nb : 0.01~0.1% 중 적어도 한쪽을 더 함유하는 용수철용 선재.
- 제 1 항에 있어서,Mo : 0.01~0.5%를 더 함유하는 용수철용 선재.
- 제 1 항에 있어서,B : 0.0003~0.005%를 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 KR20090010926A (ko) | 2009-01-30 |
KR101040858B1 true 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) |
Families Citing this family (14)
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 |
JP5595358B2 (ja) * | 2010-08-30 | 2014-09-24 | 株式会社神戸製鋼所 | 伸線性に優れた高強度ばね用鋼線材およびその製造方法、並びに高強度ばね |
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 |
JP5425744B2 (ja) * | 2010-10-29 | 2014-02-26 | 株式会社神戸製鋼所 | 伸線加工性に優れた高炭素鋼線材 |
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 |
BR112014003415B1 (pt) * | 2011-08-18 | 2019-05-28 | Nippon Steel & Sumitomo Metal Corporation | Aço para mola e mola |
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 |
EP3135785B1 (en) * | 2014-04-23 | 2018-12-26 | Nippon Steel & Sumitomo Metal Corporation | Spring steel and method for producing same |
CN107002202B (zh) | 2014-12-15 | 2019-08-13 | 日本制铁株式会社 | 线材 |
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 |
Citations (4)
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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 |
JPH06158226A (ja) * | 1992-11-24 | 1994-06-07 | Nippon Steel Corp | 疲労特性に優れたばね用鋼 |
JP2000169937A (ja) | 1998-10-01 | 2000-06-20 | Suzuki Kinzoku Kogyo Kk | 高強度ばね用鋼線およびその製造方法 |
JP2007126700A (ja) | 2005-11-02 | 2007-05-24 | Kobe Steel Ltd | 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 |
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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 |
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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 |
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 |
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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
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPH06158226A (ja) * | 1992-11-24 | 1994-06-07 | Nippon Steel Corp | 疲労特性に優れたばね用鋼 |
JP2000169937A (ja) | 1998-10-01 | 2000-06-20 | Suzuki Kinzoku Kogyo Kk | 高強度ばね用鋼線およびその製造方法 |
JP2007126700A (ja) | 2005-11-02 | 2007-05-24 | Kobe Steel Ltd | 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 |
Also Published As
Publication number | Publication date |
---|---|
US7901520B2 (en) | 2011-03-08 |
US20090025832A1 (en) | 2009-01-29 |
EP2022867B1 (en) | 2010-09-22 |
CN101353767A (zh) | 2009-01-28 |
CN101353767B (zh) | 2012-07-04 |
EP2022867A1 (en) | 2009-02-11 |
JP2009024245A (ja) | 2009-02-05 |
KR20090010926A (ko) | 2009-01-30 |
DE602008002657D1 (de) | 2010-11-04 |
JP4694537B2 (ja) | 2011-06-08 |
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