KR20150013891A - 강재 - Google Patents

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Publication number
KR20150013891A
KR20150013891A KR1020147036128A KR20147036128A KR20150013891A KR 20150013891 A KR20150013891 A KR 20150013891A KR 1020147036128 A KR1020147036128 A KR 1020147036128A KR 20147036128 A KR20147036128 A KR 20147036128A KR 20150013891 A KR20150013891 A KR 20150013891A
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KR
South Korea
Prior art keywords
less
phase
steel
grain
impact
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.)
Ceased
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KR1020147036128A
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English (en)
Korean (ko)
Inventor
가오리 가와노
마사히토 다사카
요시아키 나카자와
야스아키 다나카
도시로 도미다
Original Assignee
신닛테츠스미킨 카부시키카이샤
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Publication of KR20150013891A publication Critical patent/KR20150013891A/ko
Ceased legal-status Critical Current

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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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D2211/001—Austenite
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/008—Martensite
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties

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  • 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)
  • Heat Treatment Of Sheet Steel (AREA)
KR1020147036128A 2012-07-20 2013-07-22 강재 Ceased KR20150013891A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2012-161730 2012-07-20
JP2012161730 2012-07-20
PCT/JP2013/069805 WO2014014120A1 (ja) 2012-07-20 2013-07-22 鋼材

Publications (1)

Publication Number Publication Date
KR20150013891A true KR20150013891A (ko) 2015-02-05

Family

ID=49948940

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020147036128A Ceased KR20150013891A (ko) 2012-07-20 2013-07-22 강재

Country Status (15)

Country Link
US (1) US10378090B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP2876178B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP5660250B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR20150013891A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN104471094B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR112015000845A2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2878685C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2828084T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN2014DN08577A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MX (1) MX2015000770A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PL (1) PL2876178T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
RU (1) RU2599933C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TWI484049B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO2014014120A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA201500132B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190012262A (ko) * 2016-08-05 2019-02-08 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190014077A (ko) * 2016-08-05 2019-02-11 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190015539A (ko) * 2016-08-05 2019-02-13 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190016099A (ko) * 2016-08-05 2019-02-15 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20200046067A (ko) * 2017-11-24 2020-05-06 닛폰세이테츠 가부시키가이샤 열연 강판 및 그 제조 방법
KR20200047625A (ko) * 2017-11-24 2020-05-07 닛폰세이테츠 가부시키가이샤 열연 강판 및 그 제조 방법

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PL3150737T3 (pl) * 2014-05-29 2020-03-31 Nippon Steel Corporation Materiał stalowy poddany obróbce cieplnej i sposób jego wytwarzania
CN106460116B (zh) * 2014-05-29 2019-04-02 新日铁住金株式会社 热处理钢材及其制造方法
WO2016132549A1 (ja) 2015-02-20 2016-08-25 新日鐵住金株式会社 熱延鋼板
CN107208209B (zh) * 2015-02-20 2019-04-16 新日铁住金株式会社 热轧钢板
WO2016135898A1 (ja) 2015-02-25 2016-09-01 新日鐵住金株式会社 熱延鋼板
ES2769224T3 (es) 2015-02-25 2020-06-25 Nippon Steel Corp Chapa de acero laminada en caliente
TWI570248B (zh) * 2015-08-24 2017-02-11 Nippon Steel & Sumitomo Metal Corp Steel plate
CA3011224C (en) * 2016-01-28 2020-04-28 Nippon Steel & Sumitomo Metal Corporation Panel-like formed product, vehicle door, and method for manufacturing a panel-like formed product
CN108396246B (zh) * 2017-02-08 2020-09-01 鞍钢股份有限公司 一种高碳钢盘条及其网状渗碳体析出控制方法
RU2649887C1 (ru) * 2017-05-10 2018-04-05 Акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор" Способ определения координат (пеленга и дистанции) и параметров движения (курса и скорости) морской шумящей цели
WO2019092483A1 (en) 2017-11-10 2019-05-16 Arcelormittal Cold rolled and heat treated steel sheet and a method of manufacturing thereof
JP2020059919A (ja) * 2018-10-09 2020-04-16 日本製鉄株式会社 鋼材およびその製造方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3958842B2 (ja) 1997-07-15 2007-08-15 新日本製鐵株式会社 動的変形特性に優れた自動車衝突エネルギ吸収用加工誘起変態型高強度鋼板
JP3352938B2 (ja) 1998-03-19 2002-12-03 株式会社神戸製鋼所 耐衝撃特性に優れた高強度熱延鋼板およびその製造方法
JP3793350B2 (ja) 1998-06-29 2006-07-05 新日本製鐵株式会社 動的変形特性に優れたデュアルフェーズ型高強度冷延鋼板とその製造方法
WO2001081640A1 (fr) * 2000-04-21 2001-11-01 Nippon Steel Corporation Plaque d'acier presentant une excellente aptitude a l'ebarbage et une resistance elevee a la fatigue, et son procede de production
TWI290177B (en) * 2001-08-24 2007-11-21 Nippon Steel Corp A steel sheet excellent in workability and method for producing the same
JP4311049B2 (ja) 2003-03-18 2009-08-12 Ｊｆｅスチール株式会社 超微細粒組織を有し衝撃吸収特性に優れる冷延鋼板およびその製造方法
DE602004025247D1 (de) 2003-07-28 2010-03-11 Sumitomo Metal Ind Stossabsorbierendes glied
DE602004027144D1 (de) 2003-07-28 2010-06-24 Sumitomo Metal Ind Stossabsorbierendes glied
CN100406768C (zh) 2003-07-28 2008-07-30 住友金属工业株式会社 冲击吸收构件
JP3876879B2 (ja) 2003-12-08 2007-02-07 Ｊｆｅスチール株式会社 耐衝撃性に優れる自動車用高張力熱延鋼板
JP4501699B2 (ja) * 2004-02-18 2010-07-14 Ｊｆｅスチール株式会社 深絞り性と伸びフランジ性に優れた高強度鋼板およびその製造方法
JP4408386B2 (ja) * 2004-04-19 2010-02-03 新日本製鐵株式会社 結晶粒の微細な複合組織高張力鋼
JP4681290B2 (ja) 2004-12-03 2011-05-11 本田技研工業株式会社 高強度鋼板及びその製造方法
EP1995336A1 (fr) * 2007-05-16 2008-11-26 ArcelorMittal France Acier à faible densité présentant une bonne aptitude à l'emboutissage
KR101482258B1 (ko) * 2007-12-26 2015-01-13 주식회사 포스코 열간성형 가공성이 우수한 고강도 열연강판 및 이를 이용한성형품 및 그 제조방법
JP5564754B2 (ja) 2008-01-16 2014-08-06 新日鐵住金株式会社 曲げ性に優れた高強度冷延鋼板の製造方法
JP5438302B2 (ja) 2008-10-30 2014-03-12 株式会社神戸製鋼所 加工性に優れた高降伏比高強度の溶融亜鉛めっき鋼板または合金化溶融亜鉛めっき鋼板とその製造方法
JP5533146B2 (ja) * 2010-03-31 2014-06-25 新日鐵住金株式会社 冷延鋼板およびその製造方法
JP5521813B2 (ja) * 2010-06-17 2014-06-18 新日鐵住金株式会社 衝撃吸収部材
JP2012007649A (ja) * 2010-06-23 2012-01-12 Sumitomo Metal Ind Ltd 衝撃吸収部材
CN103249853B (zh) * 2010-10-18 2015-05-20 新日铁住金株式会社 高速变形下均一韧性及局部韧性优异的热轧钢板、冷轧钢板以及镀覆钢板

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190012262A (ko) * 2016-08-05 2019-02-08 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190014077A (ko) * 2016-08-05 2019-02-11 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190015539A (ko) * 2016-08-05 2019-02-13 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20190016099A (ko) * 2016-08-05 2019-02-15 신닛테츠스미킨 카부시키카이샤 강판 및 도금 강판
KR20200046067A (ko) * 2017-11-24 2020-05-06 닛폰세이테츠 가부시키가이샤 열연 강판 및 그 제조 방법
KR20200047625A (ko) * 2017-11-24 2020-05-07 닛폰세이테츠 가부시키가이샤 열연 강판 및 그 제조 방법

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BR112015000845A2 (pt) 2017-06-27
US10378090B2 (en) 2019-08-13
CN104471094A (zh) 2015-03-25
WO2014014120A1 (ja) 2014-01-23
JP5660250B2 (ja) 2015-01-28
CA2878685C (en) 2017-06-06
CA2878685A1 (en) 2014-01-23
RU2599933C2 (ru) 2016-10-20
RU2015105394A (ru) 2016-09-10
IN2014DN08577A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 2015-05-22
TWI484049B (zh) 2015-05-11
ES2828084T3 (es) 2021-05-25
MX2015000770A (es) 2015-05-07
EP2876178B1 (en) 2020-09-16
ZA201500132B (en) 2016-01-27
CN104471094B (zh) 2019-02-26
EP2876178A4 (en) 2016-04-13
TW201413009A (zh) 2014-04-01
JPWO2014014120A1 (ja) 2016-07-07
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US20150071812A1 (en) 2015-03-12
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