EP3214191A1 - Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication - Google Patents

Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication Download PDF

Info

Publication number: EP3214191A1
Authority: EP; European Patent Office
Prior art keywords: temperature; casting; process according; bars; forms
Prior art date: 2016-03-04
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.): Granted

Application number

EP17468001.7A

Other languages

German (de)

English (en)

Other versions

EP3214191B1 (fr

Inventor

Peter Cvahte

Marina Jelen

Dragojevic Vukasin

Steinacher Matej

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Impol 2000 D D

Original Assignee

Impol 2000 D D

Priority date (The priority date 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 date listed.)

2016-03-04

Filing date

2017-03-02

Publication date

2017-09-06

2017-03-02 Application filed by Impol 2000 D D filed Critical Impol 2000 D D

2017-09-06 Publication of EP3214191A1 publication Critical patent/EP3214191A1/fr

2020-08-19 Application granted granted Critical

2020-08-19 Publication of EP3214191B1 publication Critical patent/EP3214191B1/fr

Status Not-in-force legal-status Critical Current

2037-03-02 Anticipated expiration legal-status Critical

Links

229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 12
238000004519 manufacturing process Methods 0.000 title claims abstract description 9
238000005266 casting Methods 0.000 claims abstract description 19
230000008018 melting Effects 0.000 claims abstract description 11
238000002844 melting Methods 0.000 claims abstract description 11
229910018464 Al—Mg—Si Inorganic materials 0.000 claims abstract description 6
238000010438 heat treatment Methods 0.000 claims abstract description 6
238000005520 cutting process Methods 0.000 claims abstract 2
238000000034 method Methods 0.000 claims description 15
239000000155 melt Substances 0.000 claims description 11
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
238000001125 extrusion Methods 0.000 claims description 7
239000000203 mixture Substances 0.000 claims description 5
239000000126 substance Substances 0.000 claims description 5
238000009749 continuous casting Methods 0.000 claims description 3
230000005672 electromagnetic field Effects 0.000 claims description 2
239000007921 spray Substances 0.000 claims description 2
229910045601 alloy Inorganic materials 0.000 abstract description 19
239000000956 alloy Substances 0.000 abstract description 19
238000005260 corrosion Methods 0.000 abstract description 17
230000007797 corrosion Effects 0.000 abstract description 16
238000005265 energy consumption Methods 0.000 abstract 1
230000007613 environmental effect Effects 0.000 abstract 1
239000011777 magnesium Substances 0.000 description 15
239000011572 manganese Substances 0.000 description 14
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
239000011651 chromium Substances 0.000 description 12
239000010949 copper Substances 0.000 description 10
239000002244 precipitate Substances 0.000 description 10
229910019752 Mg2Si Inorganic materials 0.000 description 9
229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 8
229910052748 manganese Inorganic materials 0.000 description 8
239000010936 titanium Substances 0.000 description 8
229910052804 chromium Inorganic materials 0.000 description 7
238000004881 precipitation hardening Methods 0.000 description 7
229910052710 silicon Inorganic materials 0.000 description 7
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 6
229910052742 iron Inorganic materials 0.000 description 6
229910052749 magnesium Inorganic materials 0.000 description 6
239000002245 particle Substances 0.000 description 6
229910052726 zirconium Inorganic materials 0.000 description 6
238000000265 homogenisation Methods 0.000 description 5
239000011701 zinc Substances 0.000 description 5
230000032683 aging Effects 0.000 description 4
229910052802 copper Inorganic materials 0.000 description 4
230000000694 effects Effects 0.000 description 4
239000011159 matrix material Substances 0.000 description 4
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
229910017708 MgZn2 Inorganic materials 0.000 description 3
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
230000003247 decreasing effect Effects 0.000 description 3
239000010703 silicon Substances 0.000 description 3
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
229910033181 TiB2 Inorganic materials 0.000 description 2
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
238000005275 alloying Methods 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
238000005336 cracking Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
230000006698 induction Effects 0.000 description 2
239000000463 material Substances 0.000 description 2
238000001953 recrystallisation Methods 0.000 description 2
239000011856 silicon-based particle Substances 0.000 description 2
238000007711 solidification Methods 0.000 description 2
230000008023 solidification Effects 0.000 description 2
230000035882 stress Effects 0.000 description 2
229910052719 titanium Inorganic materials 0.000 description 2
229910052725 zinc Inorganic materials 0.000 description 2
229910018137 Al-Zn Inorganic materials 0.000 description 1
229910018573 Al—Zn Inorganic materials 0.000 description 1
229910018580 Al—Zr Inorganic materials 0.000 description 1
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
239000004411 aluminium Substances 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000013078 crystal Substances 0.000 description 1
230000007547 defect Effects 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000011010 flushing procedure Methods 0.000 description 1
238000005242 forging Methods 0.000 description 1
239000000446 fuel Substances 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
238000005272 metallurgy Methods 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
239000011148 porous material Substances 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
230000035945 sensitivity Effects 0.000 description 1
239000010959 steel Substances 0.000 description 1
238000003756 stirring Methods 0.000 description 1
239000011573 trace mineral Substances 0.000 description 1
235000013619 trace mineral Nutrition 0.000 description 1

Images

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions

Definitions

the invention is in the field of metallurgy and materials and refers to a high-strength Al-Mg-Si aluminium alloy and its manufacturing process.
the invented alloy is used in the automotive, aircraft, transport, and construction industries.
Magnesium and silicon are the main alloying elements in the 6xxx aluminium alloys. Together they form the Mg 2 Si phase, which allows precipitation hardening of the alloy during ageing.
the Al-Mg-Si alloys have good workability, machinability, weldability, corrosion resistance, and strength between 230 and 450 MPa, depending on the heat treatment. A strength above 450 MPa was achieved with addition of 0.8-1.5 wt. % of Cu and 0.05-0.3 wt. % of Zr in the EP 2548983 patent, but this alloy has poor corrosion resistance on account of the higher content of copper.
the Al-Zn alloys (the 7xxx series) can achieve a strength higher than 500 MPa, but the use of these alloys is limited by their workability and corrosion resistance.
the Al-Mg-Si alloys are manufactured in the following sequence: charge preparing and melting, melt holding, semi-continuous billet casting, homogenizing, extruding of the bars or other final forms, forming (e.g. forging), and heat treatment.
a recent manufacturing process i.e., the continuous casting of bars, enables the forming of cast bars directly. In this case there is no homogenizing and extrusion.
the Al-Mg-Si alloys contain iron, copper, manganese, chromium, zinc, titanium, and zirconium.
the addition of zirconium improves the corrosion resistance, inhibits the recrystallization, refines the as-cast grains, and consequently improves the mechanical properties.
the content of zirconium in the Al-Mg-Si alloys is to 0.3 wt.
the chemical compositions of Al-Mg-Si alloys do not contain 1.3-1.7 wt. % of Si, 0.14-0.25 wt. % of Fe, up to 0.75 wt. % of Cu, 0.7-0.8 wt. % of Mn, 0.85-1.1 wt. % of Mg, 0.15-0.25 wt. % of Cr, up to 0.2 wt. % of Zn, up to 0.1 wt. % of Ti, 0.15-0.25 wt. % of Zr, other elements up to 0.15 wt. % (single element up to 0.05 wt. %), with the rest being Al.
the manufacturing process of the Al-Mg-Si alloy begins with preparing a charge that consists of the primary aluminium (99.7 wt. % of Al), revert scrap, secondary scrap, and alloying elements. These are added as the pure elements or master alloys.
the prepared charge is placed in the melting furnace (gas or induction), where the melting is started.
the chemical composition of the melt is checked after the melting.
the melting temperature depends on the content of Zr in the melt and is between 700 and 780 °C, while the melting takes up to 5 h.
the melt stirring is favourable for the dissolution of Zr, which is implemented naturally in an induction furnace and mechanically in a gas furnace.
the melting time is reduced with the use of an Al-Zr master alloy, where the Zr is precipitated in the form of fine Al 3 Zr phases.
the melt is poured into the holding furnace, where it is cleaned with argon or nitrogen flushing and is held above the liquidus temperature up to 4 h.
the liquidus temperature depends on the content of Zr in the melt and is between 700 and 750 °C. If the holding temperature falls below the liquidus temperature, the zirconium begins to precipitate in the form of the Al 3 Zr phase, which settles to the bottom of the holding furnace, because its density is 4.1 g/cm 3 .
the coarse Al 3 Zr phases represent the defects in the final products and also decrease the effect of the Zr in the alloy.
the alloy can be semi-continuously cast with different casting processes (with floats, with a hot top, or in an electromagnetic field at lower frequency) into billets with a diameter of 218-450 mm and a length up to 8 m.
the casting temperature is between 680 and 730 °C and the casting rate is 50-85 mm/min.
the alloy can be continuously cast into bars with a diameter of 30-150 mm.
the casting temperature is between 680 and 730 °C and the casting rate is 100-1000 mm/min.
the cast bars are subsequently hot or cold formed and heat treated, or only heat treated.
the melt temperature in the holding furnace should not fall under the liquidus temperature during the casting.
the cast billets are homogenized at a temperature of 400-550 °C for up to 24 h, cooled with fans, water fog, water, or air, and ultrasonically tested.
the homogenization is performed below the solidus temperature, because the Mg 2 Si phases are melted at higher temperatures and cause the formation of pores within the microstructure.
the billets are cut into a round length of 600-1600 mm and dressed as necessary. Later, the round is preheated to the homogenous temperature or in the temperature profile (wedge). The temperature of the round is between 470 and 550 °C.
the bars with a diameter of 20-180 mm or other forms to an outlined circle of 270 mm, are directly or indirectly extruded with an extrusion rate of 0.1-25 mm/s.
the temperatures of the container and the die are between 360 and 520 °C.
the bars are water quenched (spray or wave) immediately after the extrusion (T1 temper). Then the bars in the T1 temper are cold or hot formed and heat treated, or only heat treated according to the required heat treatment.
the bars, other forms, or forged parts for the T6 temper are solution heat treated at a temperature of 450-550 °C from 1 to 3 h, water quenched, and artificially aged at a temperature of 120-210 °C for up to 15 h.
T5 temper For the T5 temper they are only artificially aged at a temperature of 120-210 °C for up to 15 h and for the T4 temper they are the solution heat treated at a temperature of 450-550 °C from 1 to 3 h, water quenched, and still naturally aged.
the high-strength Al-Mg-Si aluminium alloy in the form of bars, other forms, or forged parts, which is manufactured with the processes and chemical composition described above, achieves a tensile strength of 452-495 MPa, a yield stress of 418-465 MPa, an elongation of 9-12.5 %, and a hardness of 141-145 HB in the T6 temper.
the alloy has good corrosion resistance, which is in accordance with automotive standards.
the intergranular corrosion test according to the VW PV 1113 standard showed that the depth of the intergranular corrosion of the bars in the T6 temper is less than 200 ⁇ m.

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Extrusion Of Metal (AREA)
Continuous Casting (AREA)

EP17468001.7A 2016-03-04 2017-03-02 Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication Not-in-force EP3214191B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SI201600063A SI24911A (sl)	2016-03-04	2016-03-04	Visokotrdna aluminijeva zlitina Al-Mg-Si in njen postopek izdelave

Publications (2)

Publication Number	Publication Date
EP3214191A1 true EP3214191A1 (fr)	2017-09-06
EP3214191B1 EP3214191B1 (fr)	2020-08-19

Family

ID=56464757

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17468001.7A Not-in-force EP3214191B1 (fr)	2016-03-04	2017-03-02	Alliage d'aluminium al-mg-si à haute résistance et son procédé de fabrication

Country Status (2)

Country	Link
EP (1)	EP3214191B1 (fr)
SI (1)	SI24911A (fr)

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CN113186434A (zh) *	2021-04-13	2021-07-30	上海交通大学	一种汽车用耐应力腐蚀的铝合金材料及其制备方法
DE102020001116A1 (de)	2020-02-20	2021-08-26	Neuman Aluminium Fliesspresswerk Gmbh	Kaltfließgepresstes Bauteil und Kaltfließpressverfahren
RU2754541C1 (ru) *	2020-09-16	2021-09-03	Общество с ограниченной ответственностью "Институт легких материалов и технологий"	Деформируемый сплав на основе алюминия и изделие из него
CN113817941A (zh) *	2021-08-27	2021-12-21	东莞市鑫昌铝制品有限公司	一种铝合金型材及其制备方法
CN114892048A (zh) *	2022-05-11	2022-08-12	四川越创铝业有限公司	一种低合金成份、高强度铝合金的制备方法
CN115094355A (zh) *	2022-07-01	2022-09-23	南京工业大学	Al-Zn-Mg-Cu系铝合金双级慢速随炉升温均匀化热处理工艺
CN116555608A (zh) *	2023-07-12	2023-08-08	中铝材料应用研究院有限公司	光学铝合金和其制备方法
CN116694948A (zh) *	2023-06-09	2023-09-05	大连理工大学	一种峰时效区域宽化的TiB2p/Al-Mg-Si瓷刚铝合金、其制备方法及用途
CN117737490A (zh) *	2023-12-07	2024-03-22	安徽省金兰金盈铝业有限公司	一种高强度铝合金的加工工艺
CN119144862A (zh) *	2024-11-18	2024-12-17	湖南中创空天新材料股份有限公司	一种铝合金型材制备方法及铝合金型材
CN120571878A (zh) *	2025-08-05	2025-09-02	湖南卓创精材科技股份有限公司	一种铝合金反射镜棒材的制备方法

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EP2548983A1 (fr)	2010-03-15	2013-01-23	Nissan Motor Co., Ltd.	Alliage d'aluminium et boulon haute résistance fabriqué à partir de l'alliage d'aluminium
EP2554698A1 (fr)	2010-03-31	2013-02-06	Kabushiki Kaisha Kobe Seiko Sho	Pièce forgée en alliage d'aluminium et son procédé de fabrication
EP2644725A2 (fr)	2012-03-30	2013-10-02	Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Matériau forgé d'alliage d'aluminium pour automobile et son procédé de fabrication
EP2799564A1 (fr)	2013-03-29	2014-11-05	Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Matériau forgé d'alliage d'aluminium pour automobile et son procédé de fabrication
EP2811042A1 (fr)	2012-02-02	2014-12-10	Kabushiki Kaisha Kobe Seiko Sho	Matériau d'alliage d'aluminium forgé et son procédé de fabrication
EP2883973A1 (fr) *	2013-12-11	2015-06-17	Constellium Valais SA (AG, Ltd)	Procédé de fabrication pour obtenir des produits extrudés à résistance élevée fabriqués à partir d'alliages d'aluminium 6xxx

2016
- 2016-03-04 SI SI201600063A patent/SI24911A/sl active IP Right Grant
2017
- 2017-03-02 EP EP17468001.7A patent/EP3214191B1/fr not_active Not-in-force

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EP0173632A1 (fr)	1984-07-31	1986-03-05	Cegedur Societe De Transformation De L'aluminium Pechiney	Alliage d'aluminium type A-SG à haute résistance pour produits filés ou matricés
US5240519A (en)	1991-08-28	1993-08-31	Nippon Light Metal Company, Ltd.	Aluminum based Mg-Si-Cu-Mn alloy having high strength and superior elongation
EP0787217A1 (fr)	1994-10-25	1997-08-06	Pechiney Rhenalu	Procede de fabrication de produits en alliage alsimgcu a resistance amelioree a la corrosion intercristalline
EP0987344A1 (fr)	1998-08-25	2000-03-22	Kabushiki Kaisha Kobe Seiko Sho	Pièces forgées en alliage d'aluminium à haute résistance mécanique
JP2001107168A (ja)	1999-10-06	2001-04-17	Kobe Steel Ltd	耐食性に優れた高強度高靱性アルミニウム合金鍛造材
EP1458898A1 (fr)	2001-12-21	2004-09-22	DaimlerChrysler AG	Alliage d'aluminium deformable a chaud et a froid
JP2003277868A (ja)	2002-03-19	2003-10-02	Kobe Steel Ltd	耐応力腐食割れ性に優れたアルミニウム合金鍛造材および鍛造材用素材
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EP1737994A2 (fr)	2004-04-15	2007-01-03	Corus Aluminium N.V.	Alliage d'aluminium corroye de decolletage et son procede de production
EP1802782A1 (fr)	2004-10-05	2007-07-04	Aleris Aluminum Koblenz GmbH	Plaque de moulage d'aluminium de haute durete et procede de production de la plaque
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EP2003219A2 (fr)	2006-03-31	2008-12-17	Kabushiki Kaisha Kobe Seiko Sho	Element forge d'alliage d'aluminium et son procede de production
US20100089503A1 (en)	2007-03-14	2010-04-15	Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Aluminum alloy forgings and process for production thereof
EP2548983A1 (fr)	2010-03-15	2013-01-23	Nissan Motor Co., Ltd.	Alliage d'aluminium et boulon haute résistance fabriqué à partir de l'alliage d'aluminium
EP2554698A1 (fr)	2010-03-31	2013-02-06	Kabushiki Kaisha Kobe Seiko Sho	Pièce forgée en alliage d'aluminium et son procédé de fabrication
EP2811042A1 (fr)	2012-02-02	2014-12-10	Kabushiki Kaisha Kobe Seiko Sho	Matériau d'alliage d'aluminium forgé et son procédé de fabrication
EP2644725A2 (fr)	2012-03-30	2013-10-02	Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	Matériau forgé d'alliage d'aluminium pour automobile et son procédé de fabrication
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EP2883973A1 (fr) *	2013-12-11	2015-06-17	Constellium Valais SA (AG, Ltd)	Procédé de fabrication pour obtenir des produits extrudés à résistance élevée fabriqués à partir d'alliages d'aluminium 6xxx

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