JP7420855B2 - 機械部品 - Google Patents
機械部品 Download PDFInfo
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- JP7420855B2 JP7420855B2 JP2022053519A JP2022053519A JP7420855B2 JP 7420855 B2 JP7420855 B2 JP 7420855B2 JP 2022053519 A JP2022053519 A JP 2022053519A JP 2022053519 A JP2022053519 A JP 2022053519A JP 7420855 B2 JP7420855 B2 JP 7420855B2
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- JP
- Japan
- Prior art keywords
- mass percent
- inner ring
- less
- austenite
- martensite
- 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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- 229910001566 austenite Inorganic materials 0.000 claims description 58
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 50
- 229910000734 martensite Inorganic materials 0.000 claims description 36
- 238000002441 X-ray diffraction Methods 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 230000003068 static effect Effects 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 230000000717 retained effect Effects 0.000 claims description 22
- 238000007373 indentation Methods 0.000 claims description 18
- 238000005121 nitriding Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 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 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims 1
- 238000011282 treatment Methods 0.000 description 38
- 238000000034 method Methods 0.000 description 35
- 230000002093 peripheral effect Effects 0.000 description 34
- 238000005496 tempering Methods 0.000 description 21
- 238000005096 rolling process Methods 0.000 description 20
- 239000000523 sample Substances 0.000 description 20
- 238000010791 quenching Methods 0.000 description 14
- 230000000171 quenching effect Effects 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000000611 regression analysis Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000003991 Rietveld refinement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 241000709691 Enterovirus E Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007545 Vickers hardness test Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- C21D1/06—Surface hardening
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- 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
-
- 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
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
- Heat Treatment Of Articles (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Transmission Devices (AREA)
Description
以下に、内輪10の構成を説明する。
以下に、内輪10の製造方法を説明する。
以下に、内輪10の効果を説明する。
実施形態に係る機械部品の表面における静的負荷容量を評価するため、サンプル1からサンプル6が準備された。サンプル1からサンプル6の形状は、直径85mm×厚さ5mmの平板状である。サンプル1からサンプル6は、JIS規格に定められているSUJ2により形成されている。表1には、サンプル1からサンプル6に対する熱処理の詳細が示されている。
以下に、内輪10以外の実施形態に係る機械部品の例を説明する。
図5は、転がり軸受100の断面図である。図5に示されるように、転がり軸受100は、内輪10と、外輪30と、複数の転動体40と、保持器50とを有している。
Claims (7)
- 他の部品に接触する表面を有し、かつ焼入れ及び焼戻しが行われた鋼製の機械部品であって、
前記表面に形成されている浸窒層を備え、
前記鋼は、0.95質量パーセント以上1.10質量パーセント以下の炭素と、0.30質量パーセント未満の珪素と、0.50質量パーセント未満のマンガンと、0.0080質量パーセント未満の硫黄と、1.3質量パーセント以上1.6質量パーセント以下のクロムとを含有し、かつ残部が鉄及び不可避不純物からなり、
前記表面における平均窒素濃度は、0.10質量パーセント以上になっており、
前記表面における硬さは、850Hv以上になっており、
前記表面における残留オーステナイト量は、20体積パーセント以下になっている、機械部品。 - 前記表面に対するX線回折により得られるマルテンサイトのX線プロファイルにおける半値幅は、7.2°以上8.0°以下であり、
前記表面に対するX線回折により得られるオーステナイトのX線プロファイルにおける{220}面を示すピーク位置は、128°以上であり、
前記表面に対するX線回折は、波長が2.29093×10 -10 mのCr-Kα線を用いて行われる、請求項1に記載の機械部品。 - 前記表面におけるマルテンサイトの転位密度は、1.1×1015m-2以上であり、
前記表面におけるオーステナイトの転位密度は、2.5×1014m-2以上である、請求項1に記載の機械部品。 - 前記表面における残留オーステナイト量、前記表面における平均窒素濃度及び前記表面におけるオーステナイトの転位密度をそれぞれA(単位:体積パーセント)、B(単位:質量パーセント)及びC(単位:m-2)とした際、4.332+0.005×A-0.580×B-0.295×LogC≦0との関係が満たされている、請求項1に記載の機械部品。
- 前記表面における残留オーステナイト量、前記表面における平均窒素濃度及び前記表面におけるマルテンサイトの転位密度をそれぞれA(単位:体積パーセント)、B(単位:質量パーセント)及びD(単位:m-2)とした際に、-47.73-0.025×A-2.141×B+3.155×LogD≧0との関係が満たされている、請求項1に記載の機械部品。
- 前記表面に4.5GPaの最大接触面圧が加わった際に前記表面に形成される圧痕の深さは、0.2μm以下である、請求項1に記載の機械部品。
- 前記表面における静的負荷容量は、6.0GPa以上である、請求項1に記載の機械部品。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022053519A JP7420855B2 (ja) | 2022-03-29 | 2022-03-29 | 機械部品 |
PCT/JP2023/010144 WO2023189612A1 (ja) | 2022-03-29 | 2023-03-15 | 機械部品 |
JP2024002028A JP2024029217A (ja) | 2022-03-29 | 2024-01-10 | 機械部品 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022053519A JP7420855B2 (ja) | 2022-03-29 | 2022-03-29 | 機械部品 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024002028A Division JP2024029217A (ja) | 2022-03-29 | 2024-01-10 | 機械部品 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2023146371A JP2023146371A (ja) | 2023-10-12 |
JP7420855B2 true JP7420855B2 (ja) | 2024-01-23 |
Family
ID=88201631
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022053519A Active JP7420855B2 (ja) | 2022-03-29 | 2022-03-29 | 機械部品 |
JP2024002028A Pending JP2024029217A (ja) | 2022-03-29 | 2024-01-10 | 機械部品 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024002028A Pending JP2024029217A (ja) | 2022-03-29 | 2024-01-10 | 機械部品 |
Country Status (2)
Country | Link |
---|---|
JP (2) | JP7420855B2 (ja) |
WO (1) | WO2023189612A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006322017A (ja) | 2005-05-17 | 2006-11-30 | Nsk Ltd | 転がり軸受 |
JP2008196033A (ja) | 2007-02-15 | 2008-08-28 | Ntn Corp | スラスト軸受 |
JP2022170860A (ja) | 2021-04-30 | 2022-11-11 | Ntn株式会社 | 転がり軸受 |
JP2023047716A (ja) | 2021-09-27 | 2023-04-06 | Ntn株式会社 | 機械部品 |
-
2022
- 2022-03-29 JP JP2022053519A patent/JP7420855B2/ja active Active
-
2023
- 2023-03-15 WO PCT/JP2023/010144 patent/WO2023189612A1/ja unknown
-
2024
- 2024-01-10 JP JP2024002028A patent/JP2024029217A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006322017A (ja) | 2005-05-17 | 2006-11-30 | Nsk Ltd | 転がり軸受 |
JP2008196033A (ja) | 2007-02-15 | 2008-08-28 | Ntn Corp | スラスト軸受 |
JP2022170860A (ja) | 2021-04-30 | 2022-11-11 | Ntn株式会社 | 転がり軸受 |
JP2023047716A (ja) | 2021-09-27 | 2023-04-06 | Ntn株式会社 | 機械部品 |
Also Published As
Publication number | Publication date |
---|---|
WO2023189612A1 (ja) | 2023-10-05 |
JP2024029217A (ja) | 2024-03-05 |
JP2023146371A (ja) | 2023-10-12 |
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