JP5319871B2 - ダクタイル鋳鉄合金 - Google Patents
ダクタイル鋳鉄合金 Download PDFInfo
- Publication number
- JP5319871B2 JP5319871B2 JP2005359695A JP2005359695A JP5319871B2 JP 5319871 B2 JP5319871 B2 JP 5319871B2 JP 2005359695 A JP2005359695 A JP 2005359695A JP 2005359695 A JP2005359695 A JP 2005359695A JP 5319871 B2 JP5319871 B2 JP 5319871B2
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- Prior art keywords
- iron alloy
- gas turbine
- silicon
- weight
- incidental impurities
- 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.)
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- 229910045601 alloy Inorganic materials 0.000 title claims description 53
- 239000000956 alloy Substances 0.000 title claims description 53
- 229910001141 Ductile iron Inorganic materials 0.000 title claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 16
- 229910052750 molybdenum Inorganic materials 0.000 claims description 16
- 239000011733 molybdenum Substances 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims description 11
- 239000011574 phosphorus Substances 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910001562 pearlite Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 3
- 229910052748 manganese Inorganic materials 0.000 claims 3
- 239000011572 manganese Substances 0.000 claims 3
- 238000000137 annealing Methods 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 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
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- C21D5/00—Heat treatments of cast-iron
-
- 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
- C21D2211/009—Pearlite
-
- 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
- C21D5/00—Heat treatments of cast-iron
- C21D5/02—Heat treatments of cast-iron improving the malleability of grey cast-iron
-
- 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
- C21D5/00—Heat treatments of cast-iron
- C21D5/04—Heat treatments of cast-iron of white cast-iron
- C21D5/06—Malleabilising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims (7)
- ガスタービンのタービンセクションと圧縮機セクションとの間に配置され、重量で少なくとも3%の炭素、2.5%よりも多くないシリコン、0.08%よりも多くないリン、残部の鉄及び付随不純物を含むダクタイル鋳鉄合金から鋳造されていた、前記ガスタービンに取り付けられる際にクリープ及び低サイクル疲労を受ける耐圧構造部品の耐クリープ性及び低サイクル疲労特性を改善する方法であって、
前記ダクタイル鋳鉄合金にモリブデンの追加とシリコン含有率の増加により改質するステップであって、改質されたダクタイル鋳鉄合金が、重量で少なくとも3%の炭素、2.5%以上かつ2.75%よりも多くないシリコン、0.4%〜0.8%のモリブデン、残部の鉄及び付随不純物からなり、前記付随不純物が、重量で0.11%よりも多くないマンガン、0.1%よりも多くないクロム、付随不純物量のマグネシウム、0.08%よりも多くないリン、0.01%よりも多くない硫黄を含む、ステップと、
前記改質されたダクタイル鋳鉄合金の鋳造品を製造するステップと、
前記鋳造品を、少なくとも725℃の温度で少なくとも5時間かけて焼きなます熱処理を行って、炭化物の排除及びパーライトの安定化のうちの少なくともいずれかを行うステップと
を含む、方法。 - 前記改質されたダクタイル鋳鉄合金が、重量で3.6%の炭素、2.6%のシリコン、0.4%のモリブデン、0.1%のマンガンを含む請求項1に記載の方法。
- 前記耐圧構造部品が、少なくとも400℃の最高作動温度を有する、請求項1に記載の方法。
- 前記耐圧構造部品を、産業用ガスタービンに取付けるステップをさらに含む請求項1に記載の方法。
- 前記耐圧構造部品が、前記ガスタービンの前記圧縮機セクションの直ぐ下流に配置された圧縮機吐出ケースである、請求項4に記載の方法。
- 前記耐圧構造部品が、前記ガスタービンの前記圧縮機吐出ケースの下流に配置されている、請求項4に記載の方法。
- ガスタービンのタービンセクションと圧縮機セクションとの間に配置され、重量で少なくとも3%の炭素、2.5%よりも多くないシリコン、0.08%よりも多くないリン、残部の鉄及び付随不純物を含むダクタイル鋳鉄合金から鋳造されていた、前記ガスタービンに取り付けられる際にクリープ及び低サイクル疲労を受ける耐圧構造部品の耐クリープ性及び低サイクル疲労特性を改善する方法であって、
前記ダクタイル鋳鉄合金にモリブデンの追加とシリコン含有率の増加により改質するステップであって、改質されたダクタイル鋳鉄合金が、重量で少なくとも3%の炭素、2.5%以上かつ2.75%よりも多くないシリコン、0.4%〜0.8%のモリブデン、残部の鉄及び付随不純物からなり、前記付随不純物が、重量で0.3%よりも多くないマンガン、0.1%よりも多くないクロム、付随不純物量のマグネシウム、0.08%よりも多くないリン、0.01%よりも多くない硫黄を含む、ステップと、
前記改質されたダクタイル鋳鉄合金の鋳造品を製造するステップと、
前記鋳造品を、少なくとも725℃の温度で少なくとも5時間かけて焼きなます熱処理を行って、鋳造過程で炭化物の排除及びパーライトの安定化のうちの少なくともいずれかを行って、熱処理済み耐圧構造部品を生成するステップと、
前記熱処理済み耐圧構造部品を、産業用ガスタービンに取付けるステップと
を含む、方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US90514504A | 2004-12-17 | 2004-12-17 | |
US10/905,145 | 2004-12-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006169635A JP2006169635A (ja) | 2006-06-29 |
JP5319871B2 true JP5319871B2 (ja) | 2013-10-16 |
Family
ID=36670684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005359695A Active JP5319871B2 (ja) | 2004-12-17 | 2005-12-14 | ダクタイル鋳鉄合金 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7833362B2 (ja) |
JP (1) | JP5319871B2 (ja) |
CN (1) | CN1789465B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100774773B1 (ko) | 2006-08-17 | 2007-11-07 | 현대자동차주식회사 | 페라이트계 구상흑연주철재의 제조방법 |
US7843104B2 (en) * | 2008-01-23 | 2010-11-30 | General Electric Company | Stator and stator components of dynamoelectric machines and process of inhibiting joule heating therein |
JP4825886B2 (ja) | 2009-02-27 | 2011-11-30 | トヨタ自動車株式会社 | フェライト系球状黒鉛鋳鉄 |
CN101949311B (zh) * | 2009-11-18 | 2013-06-05 | 西峡县众德汽车部件有限公司 | 一种涡轮增压器壳及其制备方法 |
DE102012217892A1 (de) * | 2012-10-01 | 2014-05-15 | Siemens Aktiengesellschaft | Gusseisen mit Niob und Bauteil |
CN103572153A (zh) * | 2013-11-04 | 2014-02-12 | 虞雪君 | 一种具有高温性能的球墨铸铁合金 |
CN103572143A (zh) * | 2013-11-04 | 2014-02-12 | 虞雪君 | 一种具有高抗蠕变性能的球墨铸铁合金 |
CN103572144A (zh) * | 2013-11-04 | 2014-02-12 | 虞雪君 | 一种具有高抗疲劳性能的球墨铸铁合金 |
CN109023034B (zh) * | 2018-09-29 | 2020-09-11 | 慈溪市中环机械厂 | 一种高强度薄壁灰铁铸件的制备方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809888A (en) * | 1955-11-14 | 1957-10-15 | Int Nickel Co | Cast iron with high creep resistance and method for making same |
JPS6029420A (ja) * | 1983-07-26 | 1985-02-14 | Kubota Ltd | 強靭性に富む複合シリンダ−ライナ−の製法 |
JPS6070162A (ja) * | 1983-09-27 | 1985-04-20 | Ishikawajima Harima Heavy Ind Co Ltd | 耐熱性球状黒鉛フエライト鋳鉄 |
CN85102110B (zh) * | 1985-04-03 | 1987-11-04 | 铁道部大连机车车辆工厂 | 具有奥氏体—贝氏体的球墨铸铁和制造方法 |
SE8502514L (sv) * | 1985-05-22 | 1986-11-23 | Volvo Ab | Forfarande for framstellning av ett bainitherdat segjern |
DE3943492C1 (en) * | 1989-11-09 | 1990-11-15 | Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De | Cast iron curving shape for glass windows - contains carbon, silicon, chromium nickel, for press curving glass |
JP3762710B2 (ja) * | 2002-03-06 | 2006-04-05 | ヤンマー株式会社 | 鋳鉄材 |
KR20040105278A (ko) * | 2003-06-04 | 2004-12-16 | 현대자동차주식회사 | 자동차의 엔진 배기계용 주철 조성물 |
-
2005
- 2005-12-14 JP JP2005359695A patent/JP5319871B2/ja active Active
- 2005-12-19 CN CN2005101377326A patent/CN1789465B/zh active Active
-
2008
- 2008-09-22 US US12/235,054 patent/US7833362B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US7833362B2 (en) | 2010-11-16 |
CN1789465A (zh) | 2006-06-21 |
CN1789465B (zh) | 2012-02-01 |
JP2006169635A (ja) | 2006-06-29 |
US20090007995A1 (en) | 2009-01-08 |
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