JPWO2014054287A1 - 厚肉鋼管の製造方法 - Google Patents
厚肉鋼管の製造方法 Download PDFInfo
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- JPWO2014054287A1 JPWO2014054287A1 JP2014539616A JP2014539616A JPWO2014054287A1 JP WO2014054287 A1 JPWO2014054287 A1 JP WO2014054287A1 JP 2014539616 A JP2014539616 A JP 2014539616A JP 2014539616 A JP2014539616 A JP 2014539616A JP WO2014054287 A1 JPWO2014054287 A1 JP WO2014054287A1
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000007654 immersion Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000010791 quenching Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000000171 quenching effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- 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
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
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- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
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- C22C—ALLOYS
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
1) 管端(pipe end)を含む多点拘束(multiple constraint)に鋼管の回転を付加した浸漬式内外面焼入法(both side dip quenching of steel pipes)は、焼入歪(quench distortion)の防止に著効があり、しかも、冷却能力(cooling capacity)も向上するので、継目無鋼管(seamless steel pipe)や電縫鋼管(electric resistance welded steel pipe)、特に、厚肉鋼管の熱処理(Q-T)に適している(非特許文献1参照)。
2) 加熱された鋼管を水槽に投入して浸漬し、鋼管の内外両面にその軸線方向(direction of axis)に沿う冷却水流(cooling water flow)(軸流(axial stream))を与えて焼入れを行う方式である内外面浸漬軸流焼入方式は、冷却能力が大きく、装置(equipment)の構造が単純であると云う点で有利である(特許文献1[0002]参照)。
3) 管周方向(circumferential direction of pipe)の冷却履歴(cooling history)の差を最小にする為に鋼管を回転させながら水槽の水に浸漬し、水中のノズル(nozzle)から噴射させた水を鋼管の内外面に吹き付け、急冷する鋼管の回転焼入れ装置(rotary quenching equipment)が、炭素鋼管の最終熱処理ライン(final heat treatment line)内に設置されている(特許文献2[0002]〜[0003]参照)。
前記冷却工程において、前記回転2は管周速VRを該VRの臨界値(critical value)VCR=4m/s以上とし、前記軸流5および、衝突流6の付与は、前記鋼管1全体の浸漬4後の時間の臨界値t1C=1.1s以内に開始して前記鋼管1が温度の臨界値T1C=150℃以下となるまで継続させ、前記軸流5の管内流速VLを該VLの臨界値VLC=7m/s以上、前記衝突流6の吐出流速VTを該VTの臨界値VTC=9m/s以上とする。
好ましくは、管周速VRは5m/s以上である。なお、VRの上限値は、偏心による鋼管の飛び出しの理由から、8m/s以下である。
前記鋼管1全体の浸漬4から前記軸流5および、衝突流6の付与開始までの時間t1が前記t1C(1.1s)超であると、特に管内面側に生じた気泡がより安定な水蒸気膜(water vapor film)へと進化して管内面に付着し、該付着した水蒸気膜は前記軸流7の付与によっても管内面から離脱させ難く、冷却能力が向上しないため、t1≦t1C(1.1s)とする。好ましくは、t1は0.9s以下である。
前記軸流5の管内流速VLが前記VLC(7m/s)未満であると、管内面側に生じた気泡を除去し難く、管内面の冷却能が向上しないため、VL≧VLC(7m/s)とする。
好ましくは、管内流速VLは10m/s以上である。なお、VLの上限値は、設備コストの理由から、20m/sである。
好ましくは、衝突流6の吐出流速VTは12m/s以上である。なお、VTの上限値は、設備コストの理由から、30m/sである。
本発明を適用する鋼管の鋼組成は、薄肉(肉厚1/2インチ未満)では本発明に規定された冷却条件を外れても所定の目標強度が安定して得られるが、厚肉(肉厚1/2インチ以上、好ましくは2インチ以下)では、従来の冷却方法では、所定の目標強度が安定して得られない鋼組成であっても、本発明方法により、所定の目標強度が安定して得られるれる。このような鋼組成としては、例えば前記組成Aが挙げられる。
前記調査の結果を表2に示す。表2より、本発明例では比較例に比べて、肉厚中心でのTSが前記目標強度95〜140ksi(=655〜965MPa)に達したことが分る。加えて表層部と中心部の硬さの差が小さくなり(表面/中心硬さ比:1.00〜1.05に収まり)均質な材質が得られることが認められる。
2 回転
3 水(冷媒)
4 浸漬
5 軸流
6 衝突流
10 ローラ
11,12 ノズル
Claims (1)
- γ域に加熱した肉厚1/2インチ以上の鋼管を支持して管軸周りに回転させつつ水中に浸漬し、前記水中で回転中の鋼管に対し、管内面側へは管軸方向の水流である軸流、管外面側へは管外面に衝突する水流である衝突流を付与する冷却工程を有する厚肉鋼管の製造方法であって、前記回転は管周速を4m/s以上とし、前記軸流および、衝突流の付与は、前記鋼管全体の浸漬後1.1s以内に開始して前記鋼管が150℃以下となるまで継続させ、前記軸流の管内流速を7m/s以上、前記衝流の吐出流速を9m/s以上とすることを特徴とする厚肉鋼管の製造方法。
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US (1) | US9506132B2 (ja) |
EP (1) | EP2905347B1 (ja) |
JP (1) | JP5896036B2 (ja) |
AR (1) | AR092900A1 (ja) |
BR (1) | BR112015007331A2 (ja) |
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JP6494357B2 (ja) * | 2015-03-24 | 2019-04-03 | 日本発條株式会社 | 中空スタビライザの製造方法 |
JP6784476B2 (ja) * | 2015-03-24 | 2020-11-11 | 日本発條株式会社 | 中空スタビライザの製造方法 |
CN112111641A (zh) * | 2020-09-29 | 2020-12-22 | 邯郸新兴特种管材有限公司 | 一种厚壁L80-13Cr无缝钢管的热处理方法 |
CN112378166B (zh) * | 2020-11-16 | 2021-12-28 | 灵璧久工精密钢管制造有限公司 | 一种无缝钢管加工用冷却装置及其使用方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54169105U (ja) * | 1978-05-18 | 1979-11-29 | ||
JPS5852427A (ja) * | 1981-09-25 | 1983-03-28 | Nippon Kokan Kk <Nkk> | 金属管の焼入方法 |
JPS58141332A (ja) * | 1982-02-17 | 1983-08-22 | Kawasaki Steel Corp | 管状体の浸漬冷却における形状変化防止方法 |
JPS5976822A (ja) * | 1982-10-25 | 1984-05-02 | Kawasaki Steel Corp | 鋼管の浸漬焼入装置 |
JPS60125327A (ja) * | 1983-12-12 | 1985-07-04 | Kawasaki Steel Corp | 管材の回転焼入方法 |
JPH0565541A (ja) * | 1991-09-10 | 1993-03-19 | Kawasaki Steel Corp | 延性および3点曲げ特性に優れている自動車用高強度電縫鋼管の製造方法 |
JPH0931541A (ja) * | 1995-07-17 | 1997-02-04 | Toshiba Corp | 高Crフェライト鋼管の製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0790378A (ja) * | 1993-09-24 | 1995-04-04 | Kawasaki Steel Corp | 鋼管の焼入方法 |
JP4983324B2 (ja) | 2007-03-19 | 2012-07-25 | Jfeスチール株式会社 | パイプ焼入れ装置 |
JP5728836B2 (ja) | 2009-06-24 | 2015-06-03 | Jfeスチール株式会社 | 耐硫化物応力割れ性に優れた油井用高強度継目無鋼管の製造方法 |
JP5071537B2 (ja) * | 2010-09-02 | 2012-11-14 | 住友金属工業株式会社 | 鋼管の焼入れ方法およびそれを用いた鋼管の製造方法 |
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2013
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- 2013-10-03 JP JP2014539616A patent/JP5896036B2/ja active Active
- 2013-10-03 WO PCT/JP2013/005900 patent/WO2014054287A1/ja active Application Filing
- 2013-10-03 MX MX2015003780A patent/MX2015003780A/es active IP Right Grant
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Patent Citations (7)
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JPS54169105U (ja) * | 1978-05-18 | 1979-11-29 | ||
JPS5852427A (ja) * | 1981-09-25 | 1983-03-28 | Nippon Kokan Kk <Nkk> | 金属管の焼入方法 |
JPS58141332A (ja) * | 1982-02-17 | 1983-08-22 | Kawasaki Steel Corp | 管状体の浸漬冷却における形状変化防止方法 |
JPS5976822A (ja) * | 1982-10-25 | 1984-05-02 | Kawasaki Steel Corp | 鋼管の浸漬焼入装置 |
JPS60125327A (ja) * | 1983-12-12 | 1985-07-04 | Kawasaki Steel Corp | 管材の回転焼入方法 |
JPH0565541A (ja) * | 1991-09-10 | 1993-03-19 | Kawasaki Steel Corp | 延性および3点曲げ特性に優れている自動車用高強度電縫鋼管の製造方法 |
JPH0931541A (ja) * | 1995-07-17 | 1997-02-04 | Toshiba Corp | 高Crフェライト鋼管の製造方法 |
Also Published As
Publication number | Publication date |
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AR092900A1 (es) | 2015-05-06 |
EP2905347A1 (en) | 2015-08-12 |
JP5896036B2 (ja) | 2016-03-30 |
US9506132B2 (en) | 2016-11-29 |
EP2905347B1 (en) | 2019-03-06 |
BR112015007331A2 (pt) | 2017-07-04 |
WO2014054287A1 (ja) | 2014-04-10 |
US20150247227A1 (en) | 2015-09-03 |
MX2015003780A (es) | 2015-07-14 |
EP2905347A4 (en) | 2016-03-16 |
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