JP2018178151A - 異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品 - Google Patents
異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品 Download PDFInfo
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- JP2018178151A JP2018178151A JP2017074650A JP2017074650A JP2018178151A JP 2018178151 A JP2018178151 A JP 2018178151A JP 2017074650 A JP2017074650 A JP 2017074650A JP 2017074650 A JP2017074650 A JP 2017074650A JP 2018178151 A JP2018178151 A JP 2018178151A
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- Prior art keywords
- less
- thermal expansion
- secular change
- cast steel
- forged
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 23
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 230000032683 aging Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 18
- 229910045601 alloy Inorganic materials 0.000 description 13
- 239000000956 alloy Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 235000013559 Schnittsellerie Nutrition 0.000 description 1
- 244000169997 Schnittsellerie Species 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- Forging (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (2)
- 質量%で、
C :0.020%以下、
Si:0.30%以下、
Mn:0.50%以下、
P :0.02%以下、
S :0.02%以下、
Ni:30〜36%、
Co:2〜7%、
N :0.020%以下、及び
B :0〜0.002%
を含有し、残部がFe及び不可避的不純物であり、
C、B、Nの含有量(質量%)[C]、[B]、[N]が
7.4[C]+15.6[B]+[N]≦0.15
を満たすことを特徴とする異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品。 - 請求項1に記載の組成を有する鋳造あるいは鍛造素材を600〜1000℃に加熱して溶体化処理を施すことを特徴とする異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品の製造方法。
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JP2017074650A JP6872786B2 (ja) | 2017-04-04 | 2017-04-04 | 異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品 |
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JP2017074650A JP6872786B2 (ja) | 2017-04-04 | 2017-04-04 | 異方性が小さく経年変化の少ない低熱膨張鋳鋼及び鍛鋼品 |
Publications (2)
Publication Number | Publication Date |
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JP2018178151A true JP2018178151A (ja) | 2018-11-15 |
JP6872786B2 JP6872786B2 (ja) | 2021-05-19 |
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JP (1) | JP6872786B2 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003253398A (ja) * | 2002-02-28 | 2003-09-10 | Jfe Steel Kk | エッチング速度とエッチング精度に優れた低熱膨張合金薄板およびその製造方法 |
JP2006206949A (ja) * | 2005-01-27 | 2006-08-10 | Jfe Steel Kk | Ni合金の製造方法 |
JP2016027188A (ja) * | 2014-07-02 | 2016-02-18 | 新報国製鉄株式会社 | 低熱膨張鋳鋼品及びその製造方法 |
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2017
- 2017-04-04 JP JP2017074650A patent/JP6872786B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003253398A (ja) * | 2002-02-28 | 2003-09-10 | Jfe Steel Kk | エッチング速度とエッチング精度に優れた低熱膨張合金薄板およびその製造方法 |
JP2006206949A (ja) * | 2005-01-27 | 2006-08-10 | Jfe Steel Kk | Ni合金の製造方法 |
JP2016027188A (ja) * | 2014-07-02 | 2016-02-18 | 新報国製鉄株式会社 | 低熱膨張鋳鋼品及びその製造方法 |
JP2016027187A (ja) * | 2014-07-02 | 2016-02-18 | 新報国製鉄株式会社 | 高剛性低熱膨張鋳物及びその製造方法 |
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