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RU2015129500A - BEINITAL STEEL FOR COMPONENTS FOR DRILLING BREEDS - Google Patents

BEINITAL STEEL FOR COMPONENTS FOR DRILLING BREEDS Download PDF

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Publication number
RU2015129500A
RU2015129500A RU2015129500A RU2015129500A RU2015129500A RU 2015129500 A RU2015129500 A RU 2015129500A RU 2015129500 A RU2015129500 A RU 2015129500A RU 2015129500 A RU2015129500 A RU 2015129500A RU 2015129500 A RU2015129500 A RU 2015129500A
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RU
Russia
Prior art keywords
weight
amount
component
bainitic steel
steel according
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RU2015129500A
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Russian (ru)
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RU2669665C2 (en
Inventor
Йохан ЛИНДЕН
Томас Антонссон
Original Assignee
Сандвик Интеллекчуал Проперти Аб
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Publication of RU2015129500A publication Critical patent/RU2015129500A/en
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Publication of RU2669665C2 publication Critical patent/RU2669665C2/en

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Classifications

    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • 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
    • C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant 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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • 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
    • 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
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Heat Treatment Of Articles (AREA)
  • Earth Drilling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (32)

1. Бейнитная сталь, содержащая, в % вес:1. Bainitic steel, containing, in% weight: СFROM 0,16-0,230.16-0.23 SiSi 0,8-1,00.8-1.0 MoMo 0,67-0,90.67-0.9 CrCr 1,10-1,301.10-1.30 VV 0,18-0,40.18-0.4 NiNi 1,60-2,01,60-2,0 ΜnΜn 0,65-0,90.65-0.9 ΡΡ ≤0,020≤0.020 SS ≤0,02≤0.02 CuCu <0,20<0.20 ΝΝ 0,005-0,0120.005-0.012 остальноеrest Fe и неизбежные примесиFe and inevitable impurities
2. Бейнитная сталь по п. 1, в которой количество Si составляет 0,85-0,95% вес.2. Bainitic steel according to claim 1, in which the amount of Si is 0.85-0.95% by weight. 3. Бейнитная сталь по п. 1, в которой количество Mo составляет 0,70-0,80% вес.3. Bainitic steel according to claim 1, in which the amount of Mo is 0.70-0.80% by weight. 4. Бейнитная сталь по п. 2, в которой количество Mo составляет 0,70-0,80% вес.4. Bainitic steel according to claim 2, in which the amount of Mo is 0.70-0.80% by weight. 5. Бейнитная сталь по п. 1, в которой количество Cr составляет 1,20-1,25% вес.5. Bainitic steel according to claim 1, in which the amount of Cr is 1.20-1.25% by weight. 6. Бейнитная сталь по п. 2, в которой количество Cr составляет 1,20-1,25% вес.6. Bainitic steel according to claim 2, in which the amount of Cr is 1.20-1.25% by weight. 7. Бейнитная сталь по п. 3, в которой количество Cr составляет 1,20-1,25% вес.7. Bainitic steel according to claim 3, in which the amount of Cr is 1.20-1.25% by weight. 8. Бейнитная сталь по п. 4, в которой количество Cr составляет 1,20-1,25% вес.8. Bainitic steel according to claim 4, in which the amount of Cr is 1.20-1.25% by weight. 9. Бейнитная сталь по п. 1, в которой количество V составляет 0,20-0,30% вес.9. Bainitic steel according to claim 1, in which the amount of V is 0.20-0.30% by weight. 10. Бейнитная сталь по п. 2, в которой количество V составляет 0,20-0,30% вес.10. Bainitic steel according to claim 2, in which the amount of V is 0.20-0.30% by weight. 11. Бейнитная сталь по п. 3, в которой количество V составляет 0,20-0,30% вес.11. Bainitic steel according to claim 3, in which the amount of V is 0.20-0.30% by weight. 12. Бейнитная сталь по п. 4, в которой количество V 12. Bainitic steel according to claim 4, in which the amount of V составляет 0,20-0,30% вес.is 0.20-0.30% by weight. 13. Бейнитная сталь по п. 5, в которой количество V составляет 0,20-0,30% вес.13. Bainitic steel according to claim 5, in which the amount of V is 0.20-0.30% by weight. 14. Бейнитная сталь по п. 6, в которой количество V составляет 0,20-0,30% вес.14. Bainitic steel according to claim 6, in which the amount of V is 0.20-0.30% by weight. 15. Бейнитная сталь по п. 7, в которой количество V составляет 0,20-0,30% вес.15. Bainitic steel according to claim 7, in which the amount of V is 0.20-0.30% by weight. 16. Бейнитная сталь по п. 8, в которой количество V составляет 0,20-0,30% вес.16. Bainitic steel according to claim 8, in which the amount of V is 0.20-0.30% by weight. 17. Бейнитная сталь по любому из пп. 1-16, в которой количество N составляет 0,008-0,012% вес.17. Bainitic steel according to any one of paragraphs. 1-16, in which the amount of N is 0.008-0.012% by weight. 18. Компонент для бурения породы (10, 20, 30) содержащий сталь в соответствии с любым из пп. 1-17.18. Component for drilling rocks (10, 20, 30) containing steel in accordance with any of paragraphs. 1-17. 19. Компонент по п. 18, причем компонент является соединителем (20, 30) с внешней или внутренней резьбой для буровой колонны (10).19. A component according to claim 18, wherein the component is a connector (20, 30) with an external or internal thread for the drill string (10). 20. Компонент по любому из пп. 18-19, в котором компонент является буровой колонной (10), содержащей соединитель (20, 30) с внешней резьбой и внутренней резьбой.20. Component according to any one of paragraphs. 18-19, in which the component is a drill string (10) comprising a connector (20, 30) with an external thread and an internal thread. 21. Способ изготовления компонента (10, 20, 30) для бурения породы, содержащий этапы, на которых:21. A method of manufacturing a component (10, 20, 30) for drilling a rock, comprising stages in which: a. формируют компонент (10, 20, 30) для бурения породы в соответствии с любым из пп. 18-20 из стали в соответствии с любым из пп. 1-17;a. form a component (10, 20, 30) for drilling the rock in accordance with any one of paragraphs. 18-20 of steel in accordance with any of paragraphs. 1-17; b. нагревают упомянутый компонент (10, 20, 30) до температуры аустенизации;b. heating said component (10, 20, 30) to an austenitizing temperature; c. выдерживают упомянутый компонент (10, 20, 30) при температуре аустенизации в углеродсодержащей атмосфере на протяжении заранее определенного времени;c. maintain the aforementioned component (10, 20, 30) at the temperature of austenization in a carbon-containing atmosphere for a predetermined time; d. охлаждают компонент.d. cool the component. 22. Способ по п. 21, в котором компонент нагревают до температуры 900-1000°С.22. The method according to p. 21, in which the component is heated to a temperature of 900-1000 ° C. 23. Способ по любому из пп. 21 или 22, в котором компонент нагревают в атмосфере СО и Н2.23. The method according to any one of paragraphs. 21 or 22, in which the component is heated in an atmosphere of CO and H 2 . 24. Способ по п. 21, в котором компонент нагревают в 24. The method according to p. 21, in which the component is heated in течение 3-6 часов и/или в котором компонент охлаждают на воздухе.for 3-6 hours and / or in which the component is cooled in air. 25. Применение бейнитной стали в соответствии с любым из пп. 1-17 в упрочненных соединителях для бурения породы во время наземного ударного бурения с воздушным охлаждением.25. The use of bainitic steel in accordance with any of paragraphs. 1-17 in hardened rock drilling connectors during air-cooled surface impact drilling.
RU2015129500A 2012-12-20 2013-12-16 Bainitic steel for rock drilling components RU2669665C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12198569.1 2012-12-20
EP12198569.1A EP2746419A1 (en) 2012-12-20 2012-12-20 Bainitic steel for rock drilling component
PCT/EP2013/076740 WO2014095747A1 (en) 2012-12-20 2013-12-16 Bainitic steel for rock drilling component

Publications (2)

Publication Number Publication Date
RU2015129500A true RU2015129500A (en) 2017-01-24
RU2669665C2 RU2669665C2 (en) 2018-10-12

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RU2015129500A RU2669665C2 (en) 2012-12-20 2013-12-16 Bainitic steel for rock drilling components

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US (2) US20150344997A1 (en)
EP (2) EP2746419A1 (en)
JP (1) JP5937279B2 (en)
KR (1) KR102021002B1 (en)
CN (1) CN104870677B (en)
AU (1) AU2013363743B2 (en)
BR (1) BR112015014607B1 (en)
CA (1) CA2893669C (en)
CL (1) CL2015001782A1 (en)
ES (1) ES2613684T3 (en)
MX (1) MX345499B (en)
PE (1) PE20151034A1 (en)
PL (1) PL2935639T3 (en)
PT (1) PT2935639T (en)
RU (1) RU2669665C2 (en)
WO (1) WO2014095747A1 (en)
ZA (1) ZA201504148B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160048629A (en) 2014-10-23 2016-05-04 이화다이아몬드공업 주식회사 Drill bit for drilling and method of manufacturing the same
CN106480279B (en) * 2016-12-28 2018-01-02 长春实越节能材料有限公司 One kind improves high nitrogen steel stone oil drill collar surface corrosion-resistant and loses anti abrasive method
DE102020107194A1 (en) * 2020-03-16 2021-09-16 Ejot Gmbh & Co. Kg Method of making a screw and screw
CN115552051A (en) * 2020-05-06 2022-12-30 合瑞迈凿岩钎钢股份有限公司 new bainitic steel
CN112322981B (en) * 2020-11-06 2022-03-15 首钢贵阳特殊钢有限责任公司 H22 and H25 drill rod hollow steel for rock drilling
CN112695245B (en) * 2020-12-03 2022-06-03 兰州兰石集团有限公司铸锻分公司 Low-temperature steel for drilling machine in extremely cold area and heat treatment process thereof
CN119710488A (en) * 2025-01-15 2025-03-28 江苏利淮钢铁有限公司 Square steel for light hollow drill rod with wear resistance, corrosion resistance and high fatigue life and production method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59229412A (en) * 1983-06-08 1984-12-22 Kawasaki Steel Corp Heat treating method of extra-thick tempered steel
US5731045A (en) 1996-01-26 1998-03-24 Southwest Research Institute Application of diamond-like carbon coatings to cobalt-cemented tungsten carbide components
CA2135255C (en) * 1994-05-26 2000-05-16 William E. Heitmann Cold deformable, high strength, hot rolled bar and method for producing same
GB2297094B (en) * 1995-01-20 1998-09-23 British Steel Plc Improvements in and relating to Carbide-Free Bainitic Steels
JPH09170047A (en) * 1995-12-16 1997-06-30 Daido Steel Co Ltd High strength-high toughness bainite type non-heat treated steel and manufacturing method thereof
SE506178C2 (en) * 1996-01-22 1997-11-17 Sandvik Ab Friction welded product for rock drilling as well as process for manufacturing the product
SE507440C2 (en) * 1996-06-20 1998-06-08 Sandvik Ab Friction welded drill rod and method of manufacturing the drill rod
SE507439C2 (en) * 1996-06-24 1998-06-08 Sandvik Ab Friction welded drill rod and method of manufacturing the drill rod
US5988301A (en) * 1997-06-20 1999-11-23 Sandvik Ab Drill rod and method for its manufacture
JP2000017391A (en) * 1998-07-01 2000-01-18 Nippon Steel Corp Bainitic rail with excellent rolling fatigue resistance and electrical conductivity
FR2838138B1 (en) * 2002-04-03 2005-04-22 Usinor STEEL FOR THE MANUFACTURE OF PLASTIC INJECTION MOLDS OR FOR THE MANUFACTURE OF WORKPIECES FOR METAL WORKING
JP4386364B2 (en) * 2005-07-07 2009-12-16 株式会社日立製作所 Steam turbine piping, its manufacturing method, main steam piping and reheat piping for steam turbine and steam turbine power plant using the same
KR100836699B1 (en) * 2005-10-27 2008-06-10 히타치 긴조쿠 가부시키가이샤 Die steel
CN201301670Y (en) * 2008-04-23 2009-09-02 长年Tm公司 A dual-steel impact drill pipe
JP2011074427A (en) * 2009-09-29 2011-04-14 Daido Steel Co Ltd Hollow drill steel rod
JP5523373B2 (en) * 2011-02-18 2014-06-18 三菱マテリアル株式会社 Hollow steel rod for excavation and manufacturing method thereof
CN102191435A (en) * 2011-04-28 2011-09-21 湖北嘉裕管业股份有限公司 Non-carbide bainite steel heavy drill rod

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Publication number Publication date
EP2935639B1 (en) 2016-11-16
PE20151034A1 (en) 2015-07-15
AU2013363743B2 (en) 2016-02-04
JP2016506451A (en) 2016-03-03
US20150344997A1 (en) 2015-12-03
BR112015014607B1 (en) 2019-09-03
WO2014095747A1 (en) 2014-06-26
EP2746419A1 (en) 2014-06-25
JP5937279B2 (en) 2016-06-22
AU2013363743A1 (en) 2015-08-06
MX345499B (en) 2017-02-02
ES2613684T3 (en) 2017-05-25
PL2935639T3 (en) 2017-05-31
CA2893669A1 (en) 2014-06-26
CN104870677B (en) 2016-09-21
PT2935639T (en) 2017-02-21
MX2015007969A (en) 2015-10-22
KR102021002B1 (en) 2019-09-11
EP2935639A1 (en) 2015-10-28
US20180105905A1 (en) 2018-04-19
CL2015001782A1 (en) 2016-02-05
KR20150097771A (en) 2015-08-26
CN104870677A (en) 2015-08-26
ZA201504148B (en) 2021-09-29
RU2669665C2 (en) 2018-10-12
CA2893669C (en) 2020-11-03

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