WO2003027335A1 - Procede d'affinage de fer en fusion contenant du chrome - Google Patents

Procede d'affinage de fer en fusion contenant du chrome Download PDF

Info

Publication number: WO2003027335A1
Authority: WO; WIPO (PCT)
Prior art keywords: molten iron; refining; containing chromium; blowing; iron containing
Prior art date: 2001-09-20
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

Application number

PCT/JP2002/009701

Other languages

English (en)

French (fr)

Inventor

Kosuke Yamashita

Ryuji Nakao

Tomoaki Tanaka

Masao Igarashi

Koichiro Yoshino

Makoto Sumi

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.)

Nippon Steel Corp

Nippon Steel Plant Designing Corp

Original Assignee

Nittetsu Plant Designing Corp

Nippon Steel Corp

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.)

2001-09-20

Filing date

2002-09-20

Publication date

2003-04-03

2001-09-20 Priority claimed from JP2001286695A external-priority patent/JP2003096515A/ja

2001-09-20 Priority claimed from JP2001286694A external-priority patent/JP4895446B2/ja

2001-11-05 Priority claimed from JP2001339046A external-priority patent/JP4262428B2/ja

2001-12-25 Priority claimed from JP2001391274A external-priority patent/JP3922923B2/ja

2002-08-13 Priority claimed from JP2002235726A external-priority patent/JP3973512B2/ja

2002-09-20 Priority to DE60238776T priority Critical patent/DE60238776D1/de

2002-09-20 Priority to BRPI0216050A priority patent/BRPI0216050B1/pt

2002-09-20 Priority to BRPI0212732-6B1A priority patent/BR0212732B1/pt

2002-09-20 Application filed by Nittetsu Plant Designing Corp, Nippon Steel Corp filed Critical Nittetsu Plant Designing Corp

2002-09-20 Priority to EP02799368A priority patent/EP1431404B1/en

2002-09-20 Priority to KR1020047004145A priority patent/KR100662895B1/ko

2002-09-20 Priority to US10/490,459 priority patent/US20040245682A1/en

2003-04-03 Publication of WO2003027335A1 publication Critical patent/WO2003027335A1/ja

2004-03-20 Anticipated expiration legal-status Critical

2007-02-28 Priority to US11/712,778 priority patent/US7497987B2/en

Status Ceased legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
- F27D3/0032—Charging or loading melting furnaces with material in the solid state using an air-lock
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
- F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
- F27D2003/164—Oxygen
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/166—Introducing a fluid jet or current into the charge the fluid being a treatment gas
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/168—Introducing a fluid jet or current into the charge through a lance

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Treatment Of Steel In Its Molten State (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)

PCT/JP2002/009701 2001-09-20 2002-09-20 Procede d'affinage de fer en fusion contenant du chrome Ceased WO2003027335A1 (fr)

Priority Applications (7)

Application Number	Priority Date	Filing Date	Title
US10/490,459 US20040245682A1 (en)	2001-09-20	2002-09-20	Method for refining molten iron containing chromium
KR1020047004145A KR100662895B1 (ko)	2001-09-20	2002-09-20	함(含)크롬 용탕의 정련 방법 및 정련 장치
EP02799368A EP1431404B1 (en)	2001-09-20	2002-09-20	Method for refining molten iron containing chromium
DE60238776T DE60238776D1 (de)	2001-09-20	2002-09-20	Verfahren zum raffinieren von chromhaltigem schmelzflüssigem eisen
BRPI0212732-6B1A BR0212732B1 (pt)	2001-09-20	2002-09-20	método de refino de etapas múltiplas pelo sopro de gás para o refino de um aço ao cromo fundido em um vaso de refino
BRPI0216050A BRPI0216050B1 (pt)	2001-09-20	2002-09-20	aparelho de refino para aços ao cromo fundidos
US11/712,778 US7497987B2 (en)	2001-09-20	2007-02-28	Refining method and refining apparatus for chromium-contained molten steel

Applications Claiming Priority (10)

Application Number	Priority Date	Filing Date	Title
JP2001286695A JP2003096515A (ja)	2001-09-20	2001-09-20	極低炭含クロム溶鋼の精錬方法
JP2001286694A JP4895446B2 (ja)	2001-09-20	2001-09-20	含クロム溶鋼の精錬方法
JP2001/286695		2001-09-20
JP2001/286694		2001-09-20
JP2001/339046		2001-11-05
JP2001339046A JP4262428B2 (ja)	2001-11-05	2001-11-05	冶金炉における水漏れ検知方法
JP2001/391274		2001-12-25
JP2001391274A JP3922923B2 (ja)	2001-12-25	2001-12-25	真空排気設備における真空度制御方法及び装置
JP2002/235726		2002-08-13
JP2002235726A JP3973512B2 (ja)	2002-08-13	2002-08-13	真空排気装置の戻水貯水槽内ガスの換気方法及び戻水貯水槽の水封蓋

Related Child Applications (2)

Application Number	Title	Priority Date	Filing Date
US10490459 A-371-Of-International		2002-09-20
US11/712,778 Division US7497987B2 (en)	2001-09-20	2007-02-28	Refining method and refining apparatus for chromium-contained molten steel

Publications (1)

Publication Number	Publication Date
WO2003027335A1 true WO2003027335A1 (fr)	2003-04-03

Family

ID=27532002

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PCT/JP2002/009701 Ceased WO2003027335A1 (fr)	2001-09-20	2002-09-20	Procede d'affinage de fer en fusion contenant du chrome

Country Status (8)

Country	Link
US (2)	US20040245682A1 (ja)
EP (1)	EP1431404B1 (ja)
KR (1)	KR100662895B1 (ja)
CN (1)	CN1556865A (ja)
BR (2)	BR0212732B1 (ja)
DE (1)	DE60238776D1 (ja)
TW (1)	TW564262B (ja)
WO (1)	WO2003027335A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
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JP6921365B1 (ja) *	2020-12-14	2021-08-18	日鉄ステンレス株式会社	含クロム溶鋼の精錬方法

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KR100922061B1 (ko) *	2007-12-12	2009-10-16	주식회사 포스코	극저탄소 페라이트계 스테인리스강 제조방법
CN102296155B (zh) *	2011-01-10	2013-03-27	沈阳铸造研究所	一种aod阀架配气系统
CN102706146B (zh) *	2012-06-18	2015-06-03	中国恩菲工程技术有限公司	一种底吹熔炼设备
DE102013014856A1 (de) *	2013-04-15	2014-10-16	Sms Siemag Ag	Verfahren und Anlage zur Herstellung von Ferrolegierungen mit niedrigem Kohlenstoffgehalt in einem Vakuum-Konverter
DE102014201827A1 (de) *	2013-11-27	2015-05-28	Sms Siemag Ag	Verfahren zur Steuerung des Entkohlungsreaktionspotentials einer kohlenstoffhaltigen Metallschmelze während einer Sauerstoff-Inertgas-Blas- und Vakuumbehandlung
KR101634735B1 (ko) *	2015-07-29	2016-06-29	주식회사 포스코	진공 탈가스 설비 및 이를 이용한 용강 정련 방법
CN105256105B (zh) *	2015-11-17	2017-05-17	莱芜钢铁集团有限公司	一种rh真空精炼防爆装置及其控制方法
CA3008905C (en) *	2016-01-06	2020-07-07	Oren Technologies, Llc	Conveyor with integrated dust collector system
DE102020200571A1 (de)	2020-01-20	2021-07-22	Sms Group Gmbh	Vorrichtung und Verfahren zum Betreiben der Vorrichtung
CN111485115B (zh) *	2020-06-03	2021-12-07	云南钛业股份有限公司	一种通过调节电子束冷床炉真空度控制Al元素挥发的方法
CN112514826B (zh) *	2020-12-16	2023-07-21	真木农业设备（安徽）有限公司	一种鸡舍饮水和自动喷淋装置
EP4056721A1 (de)	2021-03-08	2022-09-14	SMS Group GmbH	Verfahren zum herstellen einer ferrolegierung mit niedrigem kohlenstoffgehalt
EP4056720A1 (de)	2021-03-08	2022-09-14	SMS Group GmbH	Verfahren zum herstellen einer ferrolegierung mit niedrigem kohlenstoffgehalt
DE102021214220A1 (de)	2021-03-08	2022-09-08	Sms Group Gmbh	Verfahren zum Herstellen einer Ferrolegierung mit niedrigem Kohlenstoffgehalt
DE102021214218A1 (de)	2021-03-08	2022-09-08	Sms Group Gmbh	Verfahren zum Herstellen einer Ferrolegierung mit niedrigem Kohlenstoffgehalt
CN113106187A (zh) *	2021-03-22	2021-07-13	张家港宏昌钢板有限公司	一种改善if钢水口堵塞的精炼双联生产方法
CN113430336B (zh) *	2021-06-18	2022-11-18	首钢集团有限公司	一种利用co2进行rh高效精炼的操作方法
DE102022001718A1 (de)	2022-05-16	2023-11-16	CTH Conrads Technologie und Holding AG	Verfahren und Vorrichtung zur Detektion einer Wasserleckage in einem metallurgischen Schmelzofen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH03211216A (ja) *	1990-01-12	1991-09-17	Sumitomo Metal Ind Ltd	高Ａｌ含有ステンレス鋼の精錬方法
JPH0873924A (ja) *	1994-09-02	1996-03-19	Nippon Steel Corp	含クロム溶鋼の精錬法
JPH101716A (ja) *	1996-06-13	1998-01-06	Daido Steel Co Ltd	減圧精錬炉の減圧装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6173817A (ja) *	1984-09-18	1986-04-16	Sumitomo Electric Ind Ltd	溶鋼制御精錬法および精錬装置
JP2850407B2 (ja) *	1989-04-18	1999-01-27	大同特殊鋼株式会社	含クロム溶鋼の精錬法
JP3044642B2 (ja)	1993-05-17	2000-05-22	新日本製鐵株式会社	含クロム溶鋼の脱炭精錬法
JPH06330143A (ja)	1993-05-18	1994-11-29	Nippon Steel Corp	含クロム溶鋼の減圧脱炭処理方法
DE4401244C2 (de) *	1994-01-18	2002-11-07	Ald Vacuum Techn Ag	Verfahren zur Entkohlung von Stahlschmelzen
JP3531218B2 (ja) *	1994-06-20	2004-05-24	大同特殊鋼株式会社	低炭素含クロム鋼の製造方法
JPH08283827A (ja) *	1995-04-10	1996-10-29	Nippon Steel Corp	低真空度精錬炉用真空排気設備
JPH09287016A (ja)	1996-04-19	1997-11-04	Nippon Steel Corp	ステンレス鋼溶製方法

2002
- 2002-09-20 EP EP02799368A patent/EP1431404B1/en not_active Expired - Lifetime
- 2002-09-20 CN CNA02818467XA patent/CN1556865A/zh active Pending
- 2002-09-20 KR KR1020047004145A patent/KR100662895B1/ko not_active Expired - Fee Related
- 2002-09-20 WO PCT/JP2002/009701 patent/WO2003027335A1/ja not_active Ceased
- 2002-09-20 US US10/490,459 patent/US20040245682A1/en not_active Abandoned
- 2002-09-20 DE DE60238776T patent/DE60238776D1/de not_active Expired - Lifetime
- 2002-09-20 TW TW091121638A patent/TW564262B/zh not_active IP Right Cessation
- 2002-09-20 BR BRPI0212732-6B1A patent/BR0212732B1/pt active IP Right Grant
- 2002-09-20 BR BRPI0216050A patent/BRPI0216050B1/pt not_active IP Right Cessation
2007
- 2007-02-28 US US11/712,778 patent/US7497987B2/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH03211216A (ja) *	1990-01-12	1991-09-17	Sumitomo Metal Ind Ltd	高Ａｌ含有ステンレス鋼の精錬方法
JPH0873924A (ja) *	1994-09-02	1996-03-19	Nippon Steel Corp	含クロム溶鋼の精錬法
JPH101716A (ja) *	1996-06-13	1998-01-06	Daido Steel Co Ltd	減圧精錬炉の減圧装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1431404A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP6921365B1 (ja) *	2020-12-14	2021-08-18	日鉄ステンレス株式会社	含クロム溶鋼の精錬方法
WO2022130473A1 (ja) *	2020-12-14	2022-06-23	日鉄ステンレス株式会社	含クロム溶鋼の精錬方法

Also Published As

Publication number	Publication date
US20070152386A1 (en)	2007-07-05
BR0212732B1 (pt)	2013-07-02
CN1556865A (zh)	2004-12-22
BRPI0216050B1 (pt)	2015-12-29
KR20040029487A (ko)	2004-04-06
EP1431404A4 (en)	2008-06-25
EP1431404A1 (en)	2004-06-23
US7497987B2 (en)	2009-03-03
TW564262B (en)	2003-12-01
BR0212732A (pt)	2004-10-05
EP1431404B1 (en)	2010-12-29
US20040245682A1 (en)	2004-12-09
KR100662895B1 (ko)	2007-01-02
DE60238776D1 (de)	2011-02-10

Publication	Publication Date	Title
WO2003027335A1 (fr)	2003-04-03	Procede d'affinage de fer en fusion contenant du chrome
GB1451013A (en)	1976-09-29	Process for production of stainless steel
EP1189678A4 (en)	2005-05-04	HYDROGEN PERMEABLE METAL MEMBRANE AND PROCESS FOR PRODUCING THE SAME
EP0827772A3 (en)	1998-04-15	Method for the removal of carbon dioxide and hydrogen sulfide from a gas containing these gases
CA2163893A1 (en)	1994-12-22	Production method for low carbon molten steel using vacuum degassing and decarburization treatment
ZA200409795B (en)	2005-10-12	Refining ferroalloys.
AUPQ890700A0 (en)	2000-08-10	A direct smelting process and apparatus
EP0652296A4 (en)	1995-08-09	METHOD AND DEVICE FOR PRODUCING MEDIUM AND HIGH CARBON FERROMANGANE.
EP1270748A3 (en)	2003-06-25	Metal refining method using a two-step oxygen blowing sequence
MX9500226A (es)	1997-04-30	Metodo para hacer acero con alto contenido de nitrogeno.
WO1999046414A3 (en)	1999-11-11	Process for the desulphurization of blister copper
EP1291443A3 (en)	2003-06-04	Pressurized converter steelmaking method
WO2004007777A3 (en)	2004-04-22	Metallurgical vessel and method of iron making by means of direct reduction
WO2005069977A3 (en)	2006-02-23	Method for producing low carbon steel
CA2042773A1 (en)	1991-11-18	Method of producing ultra-low-carbon steel
EP0805217A3 (en)	1998-05-27	Oxygen steelmaking
JPS56142815A (en)	1981-11-07	Refining method of stainless steel
ES2182684A1 (es)	2003-03-01	Procedimiento de obtencion de fibras cristalinas de alfa-alumina (corindon) a partir de aluminio y silice (cuarzo), en atmosferas controladas conteniendo gases de metales.
JPH11279624A (ja)	1999-10-12	高窒素ステンレス鋼の溶製方法
AU2003257462A1 (en)	2004-03-11	Methods and device for decarbonising a steel melt
WO1999013049A3 (de)	1999-06-10	Gärverfahren unter ausschluss von luftsauerstoff
JPH0967609A (ja)	1997-03-11	転炉の精錬方法
JPS57177910A (en)	1982-11-01	Production of extra low nitrogen ingot
DE3470565D1 (en)	1988-05-26	Process and device for the production of steel having an elevated degree of purity and a reduced gas content
CA1095728A (en)	1981-02-17	Renitrogenation of basic-oxygen steels during decarburization

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