JP4348164B2 - 被削性に優れる鋼 - Google Patents
被削性に優れる鋼 Download PDFInfo
- Publication number
- JP4348164B2 JP4348164B2 JP2003374517A JP2003374517A JP4348164B2 JP 4348164 B2 JP4348164 B2 JP 4348164B2 JP 2003374517 A JP2003374517 A JP 2003374517A JP 2003374517 A JP2003374517 A JP 2003374517A JP 4348164 B2 JP4348164 B2 JP 4348164B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- machinability
- mns
- cutting
- effect
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 60
- 239000010959 steel Substances 0.000 title claims description 60
- 229910001562 pearlite Inorganic materials 0.000 claims description 20
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 40
- 238000005520 cutting process Methods 0.000 description 33
- 230000003746 surface roughness Effects 0.000 description 25
- 238000005096 rolling process Methods 0.000 description 10
- 229920006395 saturated elastomer Polymers 0.000 description 10
- 229910000859 α-Fe Inorganic materials 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 238000005242 forging Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910000915 Free machining steel Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000004881 precipitation hardening Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910017231 MnTe Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Description
Claims (8)
- 質量%で、
C:0.011〜0.2%、
Si:0.001〜0.5%、
Mn:0.5〜3.0%、
P:0.001〜0.2%、
S:0.5〜1.0%、
B:0.005超〜0.05%、
total−N:0.002〜0.02%、
total−O:0.0005〜0.035%
を含有し、残部がFeおよび不可避的不純物からなり、ミクロ組織においてパーライト面積率が5%以下であることを特徴とする被削性に優れる鋼。 - 前記鋼において、質量%で、鋼中のMnとSの比Mn/S:1.2〜2.8であることを特徴とする請求項1に記載の被削性に優れる鋼。
- 前記鋼が、質量%で、さらに、V:0.05〜1.0%、Nb:0.005〜0.2%、Cr:0.01〜2.0%、Mo:0.05〜1.0%、W:0.05〜1.0%の1種または2種以上を含有することを特徴とする請求項1または2に記載の被削性に優れる鋼。
- 前記鋼が、質量%で、さらに、Ni:0.05〜2.0%、Cu:0.01〜2.0%の1種または2種を含有することを特徴とする請求項1〜3のいずれかの項に記載の被削性に優れる鋼。
- 前記鋼が、質量%で、さらに、Sn:0.005〜2.0%、Zn:0.0005〜0.5%の1種または2種を含有することを特徴とする請求項1〜4のいずれかの項に記載の被削性に優れる鋼。
- 前記鋼が、質量%で、さらに、Ti:0.0005〜0.1%、Ca:0.0002〜0.005%、Zr:0.0005〜0.1%、Mg:0.0003〜0.005%の1種または2種以上を含有することを特徴とする請求項1〜5のいずれかの項に記載の被削性に優れる鋼。
- 前記鋼が、質量%で、さらに、Te:0.0003〜0.05%、Bi:0.005〜0.5%、Pb:0.01〜0.5%の1種または2種以上を含有することを特徴とする請求項1〜6のいずれかの項に記載の被削性に優れる鋼。
- 前記鋼において、Al:0.015%以下に制限することを特徴とする請求項1〜7のいずれかの項に記載の被削性に優れる鋼。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003374517A JP4348164B2 (ja) | 2002-11-15 | 2003-11-04 | 被削性に優れる鋼 |
CN2007101960130A CN101215665B (zh) | 2002-11-15 | 2003-11-14 | 切削性优良的钢及其制造方法 |
DE60318745T DE60318745T2 (de) | 2002-11-15 | 2003-11-14 | Stahl mit hervorragender zerspanbarkeit und herstellungsverfahren dafür |
PCT/JP2003/014547 WO2004050932A1 (ja) | 2002-11-15 | 2003-11-14 | 被削性に優れる鋼とその製造方法 |
US10/534,858 US7488396B2 (en) | 2002-11-15 | 2003-11-14 | Superior in machinability and method of production of same |
KR1020057008721A KR100708430B1 (ko) | 2002-11-15 | 2003-11-14 | 피삭성이 우수한 강과 그 제조 방법 |
TW092132048A TWI249579B (en) | 2002-11-15 | 2003-11-14 | A steel having an excellent cuttability and a method for producing the same |
EP03772791A EP1580287B1 (en) | 2002-11-15 | 2003-11-14 | Steel excellent in machinability and method for production thereof |
US12/288,542 US8137484B2 (en) | 2002-11-15 | 2008-10-20 | Method of production of steel superior in machinability |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002332665 | 2002-11-15 | ||
JP2003374517A JP4348164B2 (ja) | 2002-11-15 | 2003-11-04 | 被削性に優れる鋼 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004176177A JP2004176177A (ja) | 2004-06-24 |
JP4348164B2 true JP4348164B2 (ja) | 2009-10-21 |
Family
ID=32716256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003374517A Expired - Fee Related JP4348164B2 (ja) | 2002-11-15 | 2003-11-04 | 被削性に優れる鋼 |
Country Status (1)
Country | Link |
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JP (1) | JP4348164B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0719310B1 (pt) * | 2006-11-28 | 2018-01-23 | Nippon Steel Corporation | Aço para usinagem superior em capacidade de produção. |
JP5241734B2 (ja) * | 2006-12-28 | 2013-07-17 | ポスコ | 被削性及び熱間圧延性の優れた環境親和型無鉛快削鋼 |
-
2003
- 2003-11-04 JP JP2003374517A patent/JP4348164B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP2004176177A (ja) | 2004-06-24 |
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