JP5368994B2 - オーステンパダクタイル鉄,該鉄の製造方法,及び該鉄を含む構成要素 - Google Patents
オーステンパダクタイル鉄,該鉄の製造方法,及び該鉄を含む構成要素 Download PDFInfo
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- JP5368994B2 JP5368994B2 JP2009541260A JP2009541260A JP5368994B2 JP 5368994 B2 JP5368994 B2 JP 5368994B2 JP 2009541260 A JP2009541260 A JP 2009541260A JP 2009541260 A JP2009541260 A JP 2009541260A JP 5368994 B2 JP5368994 B2 JP 5368994B2
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- adi
- ductile iron
- iron
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
- E02F3/3681—Rotators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
- F16D2200/0013—Cast iron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Heat Treatment Of Articles (AREA)
- Shovels (AREA)
Description
本発明の目的は,特に鋳放しフェライト状態で機械加工される際に改善された機械加工性と共に,改善された高い強度と延性の組み合わせを有する新しい種類のオーステンパダクタイル鉄を提供することである。
・C 3.0〜3.6
・Si 3.35〜4.60
・Mn 最大0.4
・P 最大0.05
・S 最大0.02
・Cu 最大0.1
・Ni 最大0.1
・Mo 最大0.01
・残部 Fe及び不可避的不純物
・C 3.0〜3.6
・Si 3.35〜4.60
・Mn 最大0.4
・P 最大0.05
・S 最大0.02
・Cu 最大0.8
・Ni 最大2.0
・Mo 最大0.3
・残部 Fe及び不可避的不純物
・C 3.0〜3.6
・Si 3.35〜4.60
・Mn 最大0.4
・P 最大0.05
・S 最大0.02
・Cu 最大0.1
・Ni 最大0.1
・Mo 最大0.01
・残部 Fe及び不可避的不純物
・C 3.0〜3.6
・Si 3.35〜4.60
・Mn 最大0.4
・P 最大0.05
・S 最大0.02
・Cu 最大0.8
・Ni 最大2.0
・Mo 最大0.3
・残部 Fe及び不可避的不純物
図1は,本発明の一実施形態に係るADI熱処理サイクルを示す。ケイ素含有量が3.35〜4.60重量%の合金又は非合金ダクタイル鉄構成要素が,加熱され[ステップ(a)],構成要素が完全にオーステナイトになりマトリクスが炭素で飽和する迄ある一定時間910〜1000℃のオーステナイト化温度で維持される[ステップ(b)]。構成要素は,例えば,スプリングハンガー,ブラケット,車輪ハブ,ブレーキキャリパ,調時歯車,カム,カム軸,内歯車,クラッチカラー,プーリ等,大型輸送車で使用される懸架又は動力伝達関連構成要素である。この構成要素は,完全にオーステナイト化された後,焼入れ媒体中で150℃/分以上等の高い焼入れ速度で焼入れされ[ステップ(c)],250〜400℃,好ましくは350〜380℃のオーステンパ温度で維持される[ステップ(d)]。等温オーステンパリングの後,構成要素は,室温まで冷却される[ステップ(e)]。次いでADI構成要素は,通常の運転サイクルで応力,歪み,衝撃及び/又は摩耗を受ける可能性の高い任意の用途に使用されることもある。
完全フェライト微細構造を有するダクタイル鉄ISO 1083/JS/500−10(グループ2)は,ダクタイル鉄ISO 1083/JS/500−7(グループ1)のフェライトパーライト微細構造に取って代わるために開発された。すなわち,ダクタイル鉄ISO 1083/JS/500−10(グループ2)は,そのケイ素含有量を2.5%から3.7%に増やすことによって固溶強化され,それにより,降伏強度と破断伸度が共にかなり向上し,一方,UTSはあまり上昇しなかった。
Claims (4)
- 高い強度と延性を必要とする構成要素用のオーステンパダクタイル鉄(ADI)であって,前記鉄は,完全なオーステナイト化が達成されたオーステナイトのマトリクス中に針状フェライトを備えたオースフェライトの微細構造を有し,且つ,重量%で下記の組成を有し,
C 3.0〜3.6
Si 3.35〜4.6
Mn 最大0.4
P 最大0.05
S 最大0.02
Cu 最大0.8
Ni 最大2.0
Mo 最大0.3
残部を鉄及び不可避的不純物,
前記微細構造を形成するために,少なくとも910℃のオーステナイト化温度を用い,オーステンパ温度に急冷し,等温オーステンパリング後室温まで冷却するADI熱処理を行うことによって得られることを特徴とするオーステンパダクタイル鉄(ADI)。 - 高い強度と延性が必要とされる構成要素用のオーステンパダクタイル鉄(ADI)を製造する方法であって,完全なオーステナイト化が達成されたオーステナイトのマトリクス中に針状フェライトを備えたオースフェライトの微細構造を有し,且つ,重量%で下記の組成を有し,
C 3.0〜3.6
Si 3.35〜4.6
Mn 最大0.4
P 最大0.05
S 最大0.02
Cu 最大0.8
Ni 最大2.0
Mo 最大0.3
残部を鉄及び不可避的不純物,
前記微細構造を形成するために,少なくとも910℃のオーステナイト化温度を用い,オーステンパ温度に急冷し,等温オーステンパリング後,室温まで冷却するADI熱処理を行うことにより,Si含有量が3.35wt%〜4.60wt%のダクタイル鉄から前記ADIを製造するステップを含むことを特徴とする方法。 - 以下の各ステップ:
・ケイ素含有量が3.35重量%〜4.60重量%,炭素含有量が3.0重量%〜3.6重量%の合金又は非合金ダクタイル鉄を含む溶融物を形成するステップと,
・前記溶融物から構成要素を鋳造するステップと,
・前記構成要素を冷却するステップと,
・前記冷却された構成要素を少なくとも910℃の第1の温度で熱処理し,この構成要素を前記温度で所定時間維持して前記構成要素をオーステナイト化するステップと,
・オーステナイトのマトリクス中に針状フェライトを備えたオースフェライトの微細構造を形成するために,前記熱処理された構成要素を,パーライトの形成を防ぐのに十分な焼入れ速度である少なくとも150℃/分で250〜400℃の第2の温度まで焼入れし,この構成要素をオーステンパするために,この構成要素を所定時間,前記温度に維持するステップと
を含むことを特徴とする,オーステンパダクタイル鉄(ADI)からなる構成要素を作製する方法。 - 請求項1の前記オーステンパダクタイル鉄(ADI)を含むことを特徴とする構成要素。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0602736-1 | 2006-12-16 | ||
SE0602736 | 2006-12-16 | ||
PCT/SE2007/050607 WO2008076051A1 (en) | 2006-12-16 | 2007-09-03 | Austempered ductile iron, method for producin this and component comprising this iron |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010513707A JP2010513707A (ja) | 2010-04-30 |
JP5368994B2 true JP5368994B2 (ja) | 2013-12-18 |
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JP2009541260A Expired - Fee Related JP5368994B2 (ja) | 2006-12-16 | 2007-09-03 | オーステンパダクタイル鉄,該鉄の製造方法,及び該鉄を含む構成要素 |
JP2009541266A Pending JP2010513709A (ja) | 2006-12-16 | 2007-12-17 | オーステンパダクタイル鉄を用いる土木機械又は材料処理機械用装置の少なくとも部品を製造する方法 |
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JP2009541266A Pending JP2010513709A (ja) | 2006-12-16 | 2007-12-17 | オーステンパダクタイル鉄を用いる土木機械又は材料処理機械用装置の少なくとも部品を製造する方法 |
Country Status (5)
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US (2) | US8858736B2 (ja) |
EP (2) | EP2092089B1 (ja) |
JP (2) | JP5368994B2 (ja) |
SE (1) | SE531107C2 (ja) |
WO (2) | WO2008076051A1 (ja) |
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SE531107C2 (sv) * | 2006-12-16 | 2008-12-23 | Indexator Ab | Metod |
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Publication number | Publication date |
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EP2092088A1 (en) | 2009-08-26 |
EP2092088B1 (en) | 2016-03-23 |
EP2092089A1 (en) | 2009-08-26 |
EP2092089A4 (en) | 2010-08-11 |
SE531107C2 (sv) | 2008-12-23 |
SE0701325L (sv) | 2008-06-17 |
US20100006189A1 (en) | 2010-01-14 |
JP2010513707A (ja) | 2010-04-30 |
EP2092088A4 (en) | 2010-08-11 |
JP2010513709A (ja) | 2010-04-30 |
US8858736B2 (en) | 2014-10-14 |
WO2008076051A1 (en) | 2008-06-26 |
SE531107E5 (ja) | 2011-04-26 |
WO2008076067A1 (en) | 2008-06-26 |
US20100111662A1 (en) | 2010-05-06 |
US8192561B2 (en) | 2012-06-05 |
EP2092089B1 (en) | 2016-02-17 |
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