JP7487009B2 - 締結部材 - Google Patents
締結部材 Download PDFInfo
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- JP7487009B2 JP7487009B2 JP2020091214A JP2020091214A JP7487009B2 JP 7487009 B2 JP7487009 B2 JP 7487009B2 JP 2020091214 A JP2020091214 A JP 2020091214A JP 2020091214 A JP2020091214 A JP 2020091214A JP 7487009 B2 JP7487009 B2 JP 7487009B2
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- JP
- Japan
- Prior art keywords
- fastening member
- hardened layer
- bolt
- threaded portion
- fastening
- 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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- 239000000463 material Substances 0.000 title description 24
- 150000004767 nitrides Chemical class 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 8
- 229910000601 superalloy Inorganic materials 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims 6
- 239000002356 single layer Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 20
- 238000005240 physical vapour deposition Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910010037 TiAlN Inorganic materials 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000573 anti-seizure effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 229910000816 inconels 718 Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- -1 UDIMET 520 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910001247 waspaloy Inorganic materials 0.000 description 1
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- Connection Of Plates (AREA)
Description
次に、本実施の形態の締結部材1の製造方法について説明する。
次に、本実施の形態の締結部材1が優れた耐固着性を有することを示すため、締結試験を行った。
Claims (5)
- 雄ねじと雌ねじとからなる締結部材であって、
前記雄ねじが、被締結部材に当接する座面を有する頭部と、円筒部と、前記雌ねじと螺合するねじ部とを備え、
前記雄ねじにおける、前記座面、前記円筒部の表面および前記ねじ部の表面に、Ti系窒化物またはCr系窒化物で構成される金属窒化物からなる単層の硬化層のみ形成され、
前記締結部材は、フェライト系耐熱鋼、Ni基超合金またはオーステナイト系耐熱鋼で構成され、
前記硬化層の表面硬さが、1500HV以上であることを特徴とする締結部材。 - 雄ねじと雌ねじとからなる締結部材であって、
前記雄ねじが、被締結部材に当接する座面を有する頭部と、円筒部と、前記雌ねじと螺合するねじ部とを備え、
前記雄ねじの前記座面および前記円筒部の表面、および前記雌ねじのねじ部の表面に、Ti系窒化物またはCr系窒化物で構成される金属窒化物からなる単層の硬化層のみ形成され、
前記締結部材は、フェライト系耐熱鋼、Ni基超合金またはオーステナイト系耐熱鋼で構成され、
前記硬化層の表面硬さが、1500HV以上であることを特徴とする締結部材。 - 前記締結部材が、500℃以上の温度下で使用されることを特徴とする請求項1または2記載の締結部材。
- 前記硬化層の表面における酸化速度が、JIS Z2290に準拠した測定において1×10 -6 mm/h以下であることを特徴とする請求項1乃至3のいずれか1項記載の締結部材。
- 室温における無潤滑ボールオンディスク試験によって得られる、前記硬化層の動摩擦係数が、0.3以下であることを特徴とする請求項1乃至4のいずれか1項記載の締結部材。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020091214A JP7487009B2 (ja) | 2020-05-26 | 2020-05-26 | 締結部材 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020091214A JP7487009B2 (ja) | 2020-05-26 | 2020-05-26 | 締結部材 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021188628A JP2021188628A (ja) | 2021-12-13 |
JP7487009B2 true JP7487009B2 (ja) | 2024-05-20 |
Family
ID=78848393
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JP2020091214A Active JP7487009B2 (ja) | 2020-05-26 | 2020-05-26 | 締結部材 |
Country Status (1)
Country | Link |
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JP (1) | JP7487009B2 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001343009A (ja) | 2000-05-31 | 2001-12-14 | Nitto Seiko Co Ltd | 焼付き防止ねじ部品 |
JP2002286013A (ja) | 2001-03-23 | 2002-10-03 | Japan Steel Works Ltd:The | 高温高圧機器構成部品 |
JP2004245242A (ja) | 2003-02-10 | 2004-09-02 | Ntn Corp | チェーンテンショナ |
JP3772236B2 (ja) | 1999-01-19 | 2006-05-10 | 大阪市 | 耐焼付用部材及びその製造方法 |
JP2008080353A (ja) | 2006-09-27 | 2008-04-10 | Hitachi Metals Ltd | 鋳造用部材 |
JP2010053976A (ja) | 2008-08-28 | 2010-03-11 | Hitachi Ltd | ボルト締結構造 |
JP2010265118A (ja) | 2010-06-17 | 2010-11-25 | Ube Ind Ltd | 巻芯 |
JP2012166969A (ja) | 2011-02-10 | 2012-09-06 | Katsuyoshi Kondo | 被膜付き基材およびその製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5293864A (en) * | 1976-02-02 | 1977-08-06 | Toyota Motor Corp | Screw member for use at high temperatures |
JPS61202136A (ja) * | 1985-03-06 | 1986-09-06 | Hitachi Ltd | 高温ボルトの寿命管理方法 |
JPH0735565B2 (ja) * | 1988-11-07 | 1995-04-19 | 住友金属鉱山株式会社 | 耐食耐摩耗性被覆鋼材及びその製造方法 |
JP3445899B2 (ja) * | 1996-04-26 | 2003-09-08 | ウンアクシス バルツェルス アクチェンゲゼルシャフト | 表面被覆エンドミル |
-
2020
- 2020-05-26 JP JP2020091214A patent/JP7487009B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3772236B2 (ja) | 1999-01-19 | 2006-05-10 | 大阪市 | 耐焼付用部材及びその製造方法 |
JP2001343009A (ja) | 2000-05-31 | 2001-12-14 | Nitto Seiko Co Ltd | 焼付き防止ねじ部品 |
JP2002286013A (ja) | 2001-03-23 | 2002-10-03 | Japan Steel Works Ltd:The | 高温高圧機器構成部品 |
JP2004245242A (ja) | 2003-02-10 | 2004-09-02 | Ntn Corp | チェーンテンショナ |
JP2008080353A (ja) | 2006-09-27 | 2008-04-10 | Hitachi Metals Ltd | 鋳造用部材 |
JP2010053976A (ja) | 2008-08-28 | 2010-03-11 | Hitachi Ltd | ボルト締結構造 |
JP2010265118A (ja) | 2010-06-17 | 2010-11-25 | Ube Ind Ltd | 巻芯 |
JP2012166969A (ja) | 2011-02-10 | 2012-09-06 | Katsuyoshi Kondo | 被膜付き基材およびその製造方法 |
Non-Patent Citations (2)
Title |
---|
楢原真司, 土屋宏之,工具・金型用の最新膜と応用展開,日新電機技報,日本,2017年10月, Vol.62, No.3,50-53 |
池田孜, 佐藤廣士,PVD法によって作成したTi-Al-N系硬質膜の高温酸化特性と耐摩耗性,日本金属学会誌,第57巻,第8号,日本,1993年,919-925 |
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JP2021188628A (ja) | 2021-12-13 |
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