JP2018071382A - 流水用耐摩耗部材 - Google Patents
流水用耐摩耗部材 Download PDFInfo
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- JP2018071382A JP2018071382A JP2016209509A JP2016209509A JP2018071382A JP 2018071382 A JP2018071382 A JP 2018071382A JP 2016209509 A JP2016209509 A JP 2016209509A JP 2016209509 A JP2016209509 A JP 2016209509A JP 2018071382 A JP2018071382 A JP 2018071382A
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- Prior art keywords
- stainless steel
- wear
- water
- resistant member
- covering portion
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 238000005299 abrasion Methods 0.000 title abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 41
- 239000010453 quartz Substances 0.000 claims abstract description 33
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims description 8
- 238000009863 impact test Methods 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 229910001566 austenite Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 7
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 22
- 238000005260 corrosion Methods 0.000 description 14
- 230000007797 corrosion Effects 0.000 description 14
- 239000004576 sand Substances 0.000 description 10
- 230000003628 erosive effect Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000007542 hardness measurement Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Hydraulic Turbines (AREA)
Abstract
【解決手段】基部と、基部表面に設けられた被覆部とを備えた材料にて構成され、被覆部が石英粒を含む水の流通時の接触面となる流水用耐摩耗部材である。被覆部を、フェライト系ステンレス鋼又は二相系ステンレス鋼にて構成した。
【選択図】図2
Description
2 ガイドベーン
3 ライナ
4 ケーシング
5 導水管
6 基部
7 被覆部
Claims (7)
- 基部と、当該基部表面に設けられた被覆部とを備えた材料にて構成され、前記被覆部が石英粒を含む水の流通時の接触面となる流水用耐摩耗部材において、
前記被覆部を、フェライト系ステンレス鋼にて構成したことを特徴とする流水用耐摩耗部材。 - 基部と、当該基部表面に設けられた被覆部とを備えた材料にて構成され、前記被覆部が石英粒を含む水の流通時の接触面となる流水用耐摩耗部材において、
前記被覆部を、フェライト相及びオーステナイト相を有する二相系ステンレス鋼にて構成したことを特徴とする流水用耐摩耗部材。 - 前記被覆部を構成するフェライト系ステンレス鋼又は二相系ステンレス鋼は、質量%でCを0.03%以下としたことを特徴とする請求項1又は請求項2に記載の流水用耐摩耗部材。
- 前記被覆部を構成するフェライト系ステンレス鋼は、質量%で、Si:1.00%以下、Mn:1.00%以下、P:0.040%以下、S:0.030%以下、Cr:11.00%〜13.50%以下を含有し、残部Feおよび不可避的不純物からなることを特徴とする請求項3に記載の流水用耐摩耗部材。
- 前記被覆部を構成するフェライト系ステンレス鋼又は二相系ステンレス鋼は、シャルピー衝撃試験の延性破面遷移温度が室温以下であることを特徴とする請求項1〜請求項4のいずれか1項に記載の流水用耐摩耗部材。
- 前記被覆部を構成するフェライト系ステンレス鋼又は二相系ステンレス鋼は、0.2%耐力が205N/mm2以上、引張強さが440N/mm2以上、伸びが20%以上であることを特徴とする請求項1〜請求項5のいずれか1項に記載の流水用耐摩耗部材。
- 水車のランナ、ライナ、ガイドベーン、ケーシング、及び導水管のいずれかであることを特徴とする請求項1〜請求項6のいずれか1項に記載の流水用耐摩耗部材。
Priority Applications (1)
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JP2016209509A JP6792410B2 (ja) | 2016-10-26 | 2016-10-26 | 流水用耐摩耗部材 |
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JP2016209509A JP6792410B2 (ja) | 2016-10-26 | 2016-10-26 | 流水用耐摩耗部材 |
Publications (2)
Publication Number | Publication Date |
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JP2018071382A true JP2018071382A (ja) | 2018-05-10 |
JP6792410B2 JP6792410B2 (ja) | 2020-11-25 |
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JP2016209509A Expired - Fee Related JP6792410B2 (ja) | 2016-10-26 | 2016-10-26 | 流水用耐摩耗部材 |
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JP (1) | JP6792410B2 (ja) |
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- 2016-10-26 JP JP2016209509A patent/JP6792410B2/ja not_active Expired - Fee Related
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