JP6574307B2 - 高強靭性継目無鋼管及びその製造方法 - Google Patents
高強靭性継目無鋼管及びその製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- 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
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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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- 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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- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- 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
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Description
を順に含む。
Claims (4)
- 高強靭性継目無鋼管の製造方法であって、以下の工程(1)〜(4):
(1)製錬して鋼管用ビレットを製造する工程;
(2)前記鋼管用ビレットを加熱してから、穿孔、連続圧延、ストレッチレデューシングによる縮径あるいはストレッチサイジングによる定径を行うことにより、素管を得る工程であって、鋼管用ビレットと素管との横断面積比が4.5を超える、工程;
(3)焼入れの急冷開始温度が850〜1100℃で、冷却速度が20〜60℃/sである条件下でオンライン焼入れを実施し、焼入れ終了後の鋼管のロックウェル硬さが40HRCを超えるようにする工程;及び
(4)焼戻し温度が500〜700℃である条件下で焼戻しを実施する工程
を順に含み、
前記高強靭性継目無鋼管が、
化学元素含有量が、質量%で、C:0.1〜0.25%、Si:0.1〜0.5%、Al:0.01〜0.1%、Mn:0.6〜2%、及び残部がFe及び不可避的不純物であり、C+Mn/6≧0.35を満足し、不可避的不純物において、S≦0.005%、P≦0.02%、O≦0.01%であり、
微細組織が、マルテンサイトを主相とし、マルテンサイト相の割合が75%以上であり、
微細組織が、さらにフェライト及びベイナイトを含み、
降伏強度が555MPa以上で、かつ0℃でのフルサイズ衝撃エネルギーが50Jを超える高強靭性継目無鋼管である、
高強靭性継目無鋼管の製造方法。 - 前記工程(2)において、鋼管用ビレットを1100〜1250℃に加熱し、1〜4時間保持する、請求項1に記載の製造方法。
- 前記工程(2)において、ストレッチレデューシングによる縮径あるいはストレッチサイジングによる定径が行われる前の鋼管用ビレットと、ストレッチレデューシングによる縮径あるいはストレッチサイジングによる定径が終了した後の鋼管用ビレットとの横断面積比が1.05を超える、請求項1に記載の製造方法。
- 前記工程(3)において、素管の周囲に水を均一にスプレーするか、または前記鋼管を水中に浸漬することにより焼入れを行う、請求項1に記載の製造方法。
Applications Claiming Priority (7)
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CN201510615737.9 | 2015-09-24 | ||
CN201510615737.9A CN105154765A (zh) | 2015-09-24 | 2015-09-24 | 一种高强韧性无缝钢管及其制造方法 |
CN201610265674.3 | 2016-04-26 | ||
CN201610265674.3A CN105907937A (zh) | 2016-04-26 | 2016-04-26 | 一种贝氏体型高强度无缝钢管的制造方法和贝氏体型高强度无缝钢管 |
CN201610776281.9 | 2016-08-30 | ||
CN201610776281.9A CN106555113B (zh) | 2015-09-24 | 2016-08-30 | 一种高强韧性无缝钢管及其制造方法 |
PCT/CN2016/099561 WO2017050227A1 (zh) | 2015-09-24 | 2016-09-21 | 一种高强韧性无缝钢管及其制造方法 |
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JP2018532883A JP2018532883A (ja) | 2018-11-08 |
JP6574307B2 true JP6574307B2 (ja) | 2019-09-11 |
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JP2018515861A Active JP6829717B2 (ja) | 2015-09-24 | 2016-09-21 | 残留熱を利用する継目無鋼管のオンライン焼入れ冷却方法および製造方法 |
JP2018515862A Pending JP2018532885A (ja) | 2015-09-24 | 2016-09-21 | ベイナイト型高強度継目無鋼管の製造方法およびベイナイト型高強度継目無鋼管 |
JP2018515853A Active JP6574307B2 (ja) | 2015-09-24 | 2016-09-21 | 高強靭性継目無鋼管及びその製造方法 |
JP2018515854A Active JP6586519B2 (ja) | 2015-09-24 | 2016-09-21 | 効果的に結晶粒を微細化する継目無鋼管のオンライン制御冷却方法および製造方法 |
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JP2018515862A Pending JP2018532885A (ja) | 2015-09-24 | 2016-09-21 | ベイナイト型高強度継目無鋼管の製造方法およびベイナイト型高強度継目無鋼管 |
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US (4) | US20180298459A1 (ja) |
EP (4) | EP3354756B1 (ja) |
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TWI719750B (zh) * | 2019-12-10 | 2021-02-21 | 金允成企業股份有限公司 | 鋁合金管件鍛抽成型方法 |
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CN106555042A (zh) * | 2015-09-24 | 2017-04-05 | 宝山钢铁股份有限公司 | 一种有效细化晶粒的无缝钢管在线控制冷却工艺及制造方法 |
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CN113458175A (zh) * | 2021-06-21 | 2021-10-01 | 周传盛 | 一种弹簧钢的加工方法 |
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CN114807526B (zh) * | 2022-04-13 | 2023-09-05 | 大冶特殊钢有限公司 | 一种大规格45CrNiMoV中厚壁无缝钢管的热处理方法 |
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CN118639147A (zh) * | 2024-08-15 | 2024-09-13 | 德新钢管(中国)有限公司 | 一种无缝钢管及其制备方法 |
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Cited By (1)
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TWI719750B (zh) * | 2019-12-10 | 2021-02-21 | 金允成企業股份有限公司 | 鋁合金管件鍛抽成型方法 |
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JP6829717B2 (ja) | 2021-02-10 |
JP2018532884A (ja) | 2018-11-08 |
EP3354756A1 (en) | 2018-08-01 |
US20180265941A1 (en) | 2018-09-20 |
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CN106555107A (zh) | 2017-04-05 |
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CN106555042A (zh) | 2017-04-05 |
EP3354755A4 (en) | 2019-03-06 |
CN106555113A (zh) | 2017-04-05 |
EP3354755A1 (en) | 2018-08-01 |
JP6586519B2 (ja) | 2019-10-02 |
JP2018532883A (ja) | 2018-11-08 |
US11015232B2 (en) | 2021-05-25 |
EP3354757A1 (en) | 2018-08-01 |
EP3354756B1 (en) | 2021-01-20 |
US11293072B2 (en) | 2022-04-05 |
US20180274054A1 (en) | 2018-09-27 |
JP2018532885A (ja) | 2018-11-08 |
EP3354755B1 (en) | 2021-05-19 |
CN106555113B (zh) | 2018-09-04 |
EP3354756A4 (en) | 2019-05-01 |
EP3354757A4 (en) | 2019-03-13 |
EP3354763A4 (en) | 2019-03-06 |
US20180282833A1 (en) | 2018-10-04 |
US20180298459A1 (en) | 2018-10-18 |
US11203794B2 (en) | 2021-12-21 |
EP3354763A1 (en) | 2018-08-01 |
CN106555045A (zh) | 2017-04-05 |
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