JP2013204080A - 焼結部材およびスタータ用ピニオンギヤ並びにそれらの製造方法 - Google Patents
焼結部材およびスタータ用ピニオンギヤ並びにそれらの製造方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 104
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000007858 starting material Substances 0.000 title claims description 11
- 238000009826 distribution Methods 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 72
- 229910052799 carbon Inorganic materials 0.000 claims description 67
- 238000005255 carburizing Methods 0.000 claims description 62
- 238000005261 decarburization Methods 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 50
- 238000010791 quenching Methods 0.000 claims description 34
- 230000000171 quenching effect Effects 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 31
- 239000010410 layer Substances 0.000 claims description 27
- 238000005242 forging Methods 0.000 claims description 25
- 238000005245 sintering Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 21
- 239000002344 surface layer Substances 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 74
- 239000011148 porous material Substances 0.000 abstract description 34
- 238000010273 cold forging Methods 0.000 abstract description 28
- 239000000463 material Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 14
- 238000003754 machining Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000007423 decrease Effects 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 238000004663 powder metallurgy Methods 0.000 description 6
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- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012768 molten material Substances 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- QPBIPRLFFSGFRD-UHFFFAOYSA-N [C].[Cu].[Fe] Chemical compound [C].[Cu].[Fe] QPBIPRLFFSGFRD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 229910017356 Fe2C Inorganic materials 0.000 description 1
- RZWKIKCJUYJECQ-UHFFFAOYSA-N [Ni].[Fe].[C] Chemical compound [Ni].[Fe].[C] RZWKIKCJUYJECQ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- BCDWXIPZSYBYCG-UHFFFAOYSA-N chromium iron manganese Chemical compound [Mn][Cr][Fe] BCDWXIPZSYBYCG-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 etc. Chemical compound 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- VAWNDNOTGRTLLU-UHFFFAOYSA-N iron molybdenum nickel Chemical compound [Fe].[Ni].[Mo] VAWNDNOTGRTLLU-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19949—Teeth
- Y10T74/19963—Spur
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
- Powder Metallurgy (AREA)
- Gears, Cams (AREA)
Abstract
【解決手段】冷間鍛造された焼結部材として、表面から内部にかけて連続して変化する硬さ分布を有し、表面の硬さがHv500〜730であり、表面から150〜300μmの範囲で硬さが最大となるとともに、その最大硬さをHv600以上とする。
【選択図】図4
Description
表1の試料番号01〜07の試料の結果および図5より、脱炭工程における雰囲気ガスの炭素量(Cp値)の影響を調べた。
表1の試料番号04および09〜13の試料の結果および図6より、脱炭工程の加熱温度の影響を調べた。
表1の試料番号04および14〜18の試料の結果および図7より、浸炭工程の炭素量(Cp値)の影響を調べた。
表1の試料番号04および19〜23の試料の結果および図8より、浸炭工程の加熱温度の影響を調べた。
Claims (9)
- 表面から内部にかけて連続して変化する硬さ分布を有し、
表面の硬さがHv730以下であり、
表面から150〜300μmの範囲で硬さが最大となるとともに、その最大硬さがHv600以上であることを特徴とする焼結部材。 - 表層部に浸炭硬化層が形成されるとともに、前記浸炭硬化層の外側に軟化層が形成され、前記軟化層が表面となっていることを特徴とする請求項1に記載の焼結部材。
- 全体の密度比が97.8%以上であることを特徴とする請求項1または2に記載の焼結部材。
- 請求項1〜3のいずれかに記載の焼結部材からなるスタータ用ピニオンギヤ。
- 原料粉末を混合する混合工程と、
前記原料粉末を圧縮して圧粉体とする成形工程と、
前記圧粉体を焼結して焼結体とする焼結工程と、
前記焼結体を鍛造して鍛造体とする鍛造工程と、
前記鍛造体を雰囲気中の炭素量が0.7〜1.2質量%の浸炭性ガス雰囲気中で、850〜950℃に加熱する浸炭工程と、
前記浸炭工程の後に雰囲気中の炭素量が0.3〜0.6質量%のガス雰囲気中で、800〜950℃に加熱する脱炭工程と、
前記脱炭工程の後に急冷する焼入れ工程と、
前記焼入れ工程の後に、150〜280℃に加熱して常温まで冷却する焼戻し工程と、
を備えたことを特徴とする焼結部材の製造方法。 - 前記浸炭工程に引き続き、加熱したまま雰囲気を置換して前記脱炭工程を行うことを特徴とする請求項5に記載の焼結部材の製造方法。
- 前記浸炭工程の直後に油中に投入して焼入れした後、再度加熱して前記脱炭工程を行うことを特徴とする請求項5に記載の焼結部材の製造方法。
- 前記鍛造により、密度比を97.8%以上にすることを特徴とする請求項5〜7のいずれかに記載の焼結部材の製造方法。
- 請求項5〜8のいずれかに記載の焼結部材の製造方法により製造されることを特徴とするスタータ用ピニオンギヤの製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2012073379A JP5959263B2 (ja) | 2012-03-28 | 2012-03-28 | ピニオンギヤおよびその製造方法 |
PCT/JP2013/056666 WO2013146217A1 (ja) | 2012-03-28 | 2013-03-11 | 焼結部材およびスタータ用ピニオンギヤ並びにそれらの製造方法 |
CN201380028012.9A CN104428085B (zh) | 2012-03-28 | 2013-03-11 | 烧结部件及起动器用小齿轮、以及它们的制造方法 |
US14/388,659 US10213832B2 (en) | 2012-03-28 | 2013-03-11 | Sintered member, pinion gear for starters, and production method therefor |
DE112013001748.2T DE112013001748T5 (de) | 2012-03-28 | 2013-03-11 | Gesintertes Bauteil, Zahnrad für Anlasser, und Produktionsverfahren davon |
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JP2012073379A JP5959263B2 (ja) | 2012-03-28 | 2012-03-28 | ピニオンギヤおよびその製造方法 |
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US (1) | US10213832B2 (ja) |
JP (1) | JP5959263B2 (ja) |
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DE (1) | DE112013001748T5 (ja) |
WO (1) | WO2013146217A1 (ja) |
Cited By (1)
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JP2022535655A (ja) * | 2019-04-12 | 2022-08-10 | ジーケーエヌ シンター メタルズ、エル・エル・シー | 可変拡散浸炭法 |
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KR101651264B1 (ko) * | 2015-04-07 | 2016-09-06 | 주식회사 디복스 | 휘발성 유기화합물 연소시스템의 구동장치 |
FR3034833B1 (fr) * | 2015-04-13 | 2019-01-25 | Valeo Equipements Electriques Moteur | Pignon de demarreur pour moteur thermique de vehicule automobile a performances mecaniques ameliorees |
CN105945289A (zh) * | 2016-06-03 | 2016-09-21 | 江苏保捷锻压有限公司 | 一种汽车手动变速箱用主减速齿轮的粉末锻压工艺 |
CN105945290A (zh) * | 2016-06-03 | 2016-09-21 | 江苏保捷锻压有限公司 | 一种汽车双离合变速箱用档位齿轮粉末锻压工艺 |
FR3056647A1 (fr) * | 2016-09-27 | 2018-03-30 | Valeo Equipements Electriques Moteur | Pignon de demarreur pour moteur thermique de vehicule automobile a performances mecaniques ameliorees |
US11883883B2 (en) | 2017-05-18 | 2024-01-30 | Keystone Powdered Metal Company | Process for manufacturing toroid parts |
US11097346B1 (en) * | 2017-05-18 | 2021-08-24 | Keystone Powdered Metal Company | Process for manufacturing toroid parts |
AT520315B1 (de) * | 2018-01-24 | 2019-03-15 | Miba Sinter Austria Gmbh | Verfahren zur Herstellung eines Sinterbauteils |
EP3696447A1 (de) * | 2019-02-12 | 2020-08-19 | Siemens Aktiengesellschaft | Getriebeelement und verfahren zur fertigung eines getriebeelements |
CN113272088A (zh) * | 2019-03-05 | 2021-08-17 | 住友电气工业株式会社 | 烧结体的制造方法 |
CN115106529A (zh) * | 2022-06-30 | 2022-09-27 | 扬州海昌新材股份有限公司 | 一种双联螺旋齿轮的制造方法 |
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JP2010520424A (ja) * | 2007-03-05 | 2010-06-10 | ヒルシュフォーゲル ウムフォルムテクニク ゲーエムベーハー | 材料の性質を改善するワークピースの処理 |
JP2012255183A (ja) * | 2011-06-08 | 2012-12-27 | Toyota Central R&D Labs Inc | 浸炭焼結体およびその製造方法 |
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US5754937A (en) | 1996-05-15 | 1998-05-19 | Stackpole Limited | Hi-density forming process |
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US7416696B2 (en) * | 2003-10-03 | 2008-08-26 | Keystone Investment Corporation | Powder metal materials and parts and methods of making the same |
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JPS5819412A (ja) * | 1981-07-29 | 1983-02-04 | Hitachi Powdered Metals Co Ltd | 高面圧に耐える鉄系焼結部品 |
JPH059508A (ja) * | 1991-07-08 | 1993-01-19 | Mitsubishi Materials Corp | 焼結合金 |
JP2006037979A (ja) * | 2004-07-22 | 2006-02-09 | Aisin Seiki Co Ltd | 歯車及び歯車の製造方法 |
JP2010520424A (ja) * | 2007-03-05 | 2010-06-10 | ヒルシュフォーゲル ウムフォルムテクニク ゲーエムベーハー | 材料の性質を改善するワークピースの処理 |
JP2009167489A (ja) * | 2008-01-18 | 2009-07-30 | Hitachi Powdered Metals Co Ltd | 寸法精度に優れた焼結部品の製造方法 |
JP2012255183A (ja) * | 2011-06-08 | 2012-12-27 | Toyota Central R&D Labs Inc | 浸炭焼結体およびその製造方法 |
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JP2022535655A (ja) * | 2019-04-12 | 2022-08-10 | ジーケーエヌ シンター メタルズ、エル・エル・シー | 可変拡散浸炭法 |
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CN104428085A (zh) | 2015-03-18 |
WO2013146217A1 (ja) | 2013-10-03 |
CN104428085B (zh) | 2016-08-24 |
DE112013001748T5 (de) | 2015-04-02 |
US10213832B2 (en) | 2019-02-26 |
JP5959263B2 (ja) | 2016-08-02 |
US20150053037A1 (en) | 2015-02-26 |
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