JP4755432B2 - 耐熱ばね用合金線、及びそれを用いる高温環境用の耐熱コイルばね - Google Patents
耐熱ばね用合金線、及びそれを用いる高温環境用の耐熱コイルばね Download PDFInfo
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- JP4755432B2 JP4755432B2 JP2005073647A JP2005073647A JP4755432B2 JP 4755432 B2 JP4755432 B2 JP 4755432B2 JP 2005073647 A JP2005073647 A JP 2005073647A JP 2005073647 A JP2005073647 A JP 2005073647A JP 4755432 B2 JP4755432 B2 JP 4755432B2
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- 229910045601 alloy Inorganic materials 0.000 title claims description 74
- 239000000956 alloy Substances 0.000 title claims description 74
- 239000013078 crystal Substances 0.000 claims description 72
- 239000012535 impurity Substances 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 14
- 238000007747 plating Methods 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 229910052721 tungsten Inorganic materials 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 230000003746 surface roughness Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 150000004767 nitrides Chemical class 0.000 claims description 5
- 230000035882 stress Effects 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 14
- 238000005491 wire drawing Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
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- 239000000243 solution Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 238000005728 strengthening Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910000816 inconels 718 Inorganic materials 0.000 description 4
- 238000010622 cold drawing Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 229910001090 inconels X-750 Inorganic materials 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 229910000967 As alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000005461 lubrication Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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- Springs (AREA)
- Metal Extraction Processes (AREA)
- Electroplating Methods And Accessories (AREA)
Description
該合金線は、横断面での結晶粒の最短直径が10μm以上の結晶粒において、双晶を有する結晶粒の総の比率が30%以上であり、
かつ0.2%耐力値が1200〜1600MPaであることを特徴とする耐熱ばね用合金線である。
A=(1.2×W%+Mo%)×(1/2×Ti%+Al%)
Cは固溶強化元素であり、添加により強度を増すが、過剰の添加は炭化物の析出等を招くために好ましくない。この為に添加量は重量%(以下同じ)が0.10%以下とし、望ましくは0.02〜0.07%とする。
Claims (8)
- 重量%でC:0.1%以下、Si:0.15%以下、Mn:0.15%以下、Cr:12.0〜20.0%、Co:11.0〜14.0%、Mo:5.0〜7.0%、Ti:2.5〜4.0%、Al:1.5〜3.0%、W:0.80〜1.50%、及びB:0.001〜0.020%とZr:0.01〜0.3%との内の少なくとも1種を含み、かつ残部がNiと不可避不純物とで構成されたNi合金線であって、
該合金線は、横断面での結晶粒の最短直径が10μm以上の結晶粒の総数Nsにおいて、双晶を有する結晶の総数Ncの割合Nc/Nsが30%以上であり、
かつ0.2%耐力値が1200〜1600MPaであることを特徴とする耐熱ばね用合金線。
- 重量%でC:0.1%以下、Si:0.15%以下、Mn:0.15%以下、Cr:12.0〜20.0%、Co:11.0〜14.0%、Mo:5.0〜7.0%、Ti:2.5〜4.0%、Al:1.5〜3.0%、W:0.80〜1.50%、及びB:0.001〜0.020%とZr:0.01〜0.3%とを含み、かつ残部がNiと不可避不純物とで構成されたNi合金線であって、
該合金線は、横断面での結晶粒の最短直径が10μm以上の結晶粒の総数Nsにおいて、双晶を有する結晶の総数Ncの割合Nc/Nsが30%以上であり、
かつ0.2%耐力値が1200〜1600MPaであることを特徴とする耐熱ばね用合金線。
- 前記双晶を有する結晶数の割合は、50〜95%であることを特徴とする請求項1又は2記載の耐熱ばね用合金線。
- 前記不可避不純物は、該不可避不純物におけるFe、Cu、N、及びOの内、少なくとも1つ以上が、Fe:0.5%以下、Cu:0.5%以下、N:0.1%以下、及びO:0.1%以下の条件を充足することを特徴とする請求項1又は2に記載の耐熱ばね用合金線。
- 次式によるA値が23〜32で、かつ横断面の面積Soに対する該横断面における炭化物と窒化物との合計断面積Scの面積比Sc/Soが5%以下であることを特徴とする請求項4に記載の耐熱ばね用合金線。
A=(1.2×W%+Mo%)×(1/2×Ti%+Al%) - 表面がNiめっき及び/又は潤滑被膜で覆われるとともに、表面粗さRzが0.05〜10μm以下であることを特徴とする請求項1〜4のいずれかに記載の耐熱ばね用合金線。
- 請求項6記載の耐熱ばね用合金線を用いるとともに、コイル中心径を(D)40mm以下とし、かつ前記中心径と線径(d)との比(D/d)が3〜20に成形されてなる高温環境用の耐熱コイルばね。
- 温度T(K)が1000K以上、かつ処理時間t(hr)が、T(K)×t(hr)を1000〜10000とした時効処理を施しエンジン排気系用としたことを特徴とする請求項7記載の高温環境用の耐熱コイルばね。
Priority Applications (2)
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JP2005073647A JP4755432B2 (ja) | 2005-03-15 | 2005-03-15 | 耐熱ばね用合金線、及びそれを用いる高温環境用の耐熱コイルばね |
US11/082,344 US7408709B2 (en) | 2004-03-18 | 2005-03-17 | Screen and method for manufacturing the same |
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JP2005073647A JP4755432B2 (ja) | 2005-03-15 | 2005-03-15 | 耐熱ばね用合金線、及びそれを用いる高温環境用の耐熱コイルばね |
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JP2006257462A JP2006257462A (ja) | 2006-09-28 |
JP4755432B2 true JP4755432B2 (ja) | 2011-08-24 |
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JP2005073647A Active JP4755432B2 (ja) | 2004-03-18 | 2005-03-15 | 耐熱ばね用合金線、及びそれを用いる高温環境用の耐熱コイルばね |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5350892B2 (ja) * | 2009-06-05 | 2013-11-27 | 中央発條株式会社 | ねじりコイルばねの製造方法 |
JP7153502B2 (ja) | 2018-08-09 | 2022-10-14 | 山陽特殊製鋼株式会社 | 窒化物分散型Ni基合金からなる成形体 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6173853A (ja) * | 1984-09-19 | 1986-04-16 | Daido Steel Co Ltd | 耐熱合金 |
US4877461A (en) * | 1988-09-09 | 1989-10-31 | Inco Alloys International, Inc. | Nickel-base alloy |
JPH06172951A (ja) * | 1992-12-07 | 1994-06-21 | Chuo Spring Co Ltd | 耐熱薄板ばねの製造方法 |
JPH11310839A (ja) * | 1998-04-28 | 1999-11-09 | Hitachi Ltd | 高強度Ni基超合金方向性凝固鋳物 |
JP4169231B2 (ja) * | 1999-06-08 | 2008-10-22 | 日本精線株式会社 | ばね用高耐熱合金線、及びそれを用いた高耐熱合金ばね |
JP4277113B2 (ja) * | 2002-02-27 | 2009-06-10 | 大同特殊鋼株式会社 | 耐熱ばね用Ni基合金 |
JP4163055B2 (ja) * | 2003-06-24 | 2008-10-08 | 日本精線株式会社 | 耐熱ばね用ステンレス鋼線、及びそれを用いた耐熱ばね製品 |
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