BRPI0716877B1 - chapa de aço, processo de fabricação de uma chapa de aço, processo de fabricação de peças estruturais e utilização de uma chapa de aço - Google Patents
chapa de aço, processo de fabricação de uma chapa de aço, processo de fabricação de peças estruturais e utilização de uma chapa de aço Download PDFInfo
- Publication number
- BRPI0716877B1 BRPI0716877B1 BRPI0716877A BRPI0716877A BRPI0716877B1 BR PI0716877 B1 BRPI0716877 B1 BR PI0716877B1 BR PI0716877 A BRPI0716877 A BR PI0716877A BR PI0716877 A BRPI0716877 A BR PI0716877A BR PI0716877 B1 BRPI0716877 B1 BR PI0716877B1
- Authority
- BR
- Brazil
- Prior art keywords
- steel plate
- steel
- equal
- plate according
- less
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 117
- 239000010959 steel Substances 0.000 title claims description 117
- 238000000034 method Methods 0.000 title claims description 25
- 230000008569 process Effects 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000002244 precipitate Substances 0.000 claims description 67
- 239000010936 titanium Substances 0.000 claims description 57
- 230000005496 eutectics Effects 0.000 claims description 39
- 229910052719 titanium Inorganic materials 0.000 claims description 39
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 31
- 239000000047 product Substances 0.000 claims description 27
- 229910052796 boron Inorganic materials 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 20
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 19
- 238000005098 hot rolling Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000000137 annealing Methods 0.000 claims description 13
- 238000007711 solidification Methods 0.000 claims description 13
- 230000008023 solidification Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 238000005097 cold rolling Methods 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 238000003303 reheating Methods 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 description 36
- 239000011159 matrix material Substances 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 17
- 239000002245 particle Substances 0.000 description 17
- 238000003466 welding Methods 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910033181 TiB2 Inorganic materials 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 10
- 239000011651 chromium Substances 0.000 description 10
- 238000007792 addition Methods 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 229910001338 liquidmetal Inorganic materials 0.000 description 7
- 238000007670 refining Methods 0.000 description 7
- 229910052748 manganese Inorganic materials 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000001953 recrystallisation Methods 0.000 description 5
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000002939 deleterious effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007970 homogeneous dispersion Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910000885 Dual-phase steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VCTOKJRTAUILIH-UHFFFAOYSA-N manganese(2+);sulfide Chemical class [S-2].[Mn+2] VCTOKJRTAUILIH-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- C22C38/14—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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
- Continuous Casting (AREA)
- Resistance Welding (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06291413.0 | 2006-09-06 | ||
EP06291413A EP1897963A1 (fr) | 2006-09-06 | 2006-09-06 | Tole d'acier pour la fabrication de structures allegées et procédé de fabrication de cette tole |
PCT/FR2007/001401 WO2008029011A2 (fr) | 2006-09-06 | 2007-08-27 | Tôle d'acier pour la fabrication de structures allegees et procede de fabrication de cette tôle |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0716877A2 BRPI0716877A2 (pt) | 2013-10-15 |
BRPI0716877B1 true BRPI0716877B1 (pt) | 2017-05-02 |
Family
ID=37496804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0716877A BRPI0716877B1 (pt) | 2006-09-06 | 2007-08-27 | chapa de aço, processo de fabricação de uma chapa de aço, processo de fabricação de peças estruturais e utilização de uma chapa de aço |
Country Status (16)
Country | Link |
---|---|
EP (2) | EP1897963A1 (fr) |
JP (1) | JP5298017B2 (fr) |
KR (1) | KR20090043555A (fr) |
CN (1) | CN101563476B (fr) |
BR (1) | BRPI0716877B1 (fr) |
CA (1) | CA2662741C (fr) |
ES (1) | ES2659987T3 (fr) |
HU (1) | HUE036845T2 (fr) |
MA (1) | MA30698B1 (fr) |
MX (1) | MX2009002411A (fr) |
PL (1) | PL2064360T3 (fr) |
RU (1) | RU2416671C2 (fr) |
TR (1) | TR201802707T4 (fr) |
UA (1) | UA95490C2 (fr) |
WO (1) | WO2008029011A2 (fr) |
ZA (1) | ZA200901377B (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5375241B2 (ja) * | 2009-03-24 | 2013-12-25 | Jfeスチール株式会社 | 高強度薄鋼板およびその製造方法 |
WO2013050397A1 (fr) | 2011-10-04 | 2013-04-11 | Tata Steel Nederland Technology Bv | Produit en acier à module e amélioré et procédé pour produire ledit produit |
JP6048072B2 (ja) * | 2011-11-24 | 2016-12-21 | Jfeスチール株式会社 | ダイクエンチ用熱延鋼板、その製造方法、およびそれを用いた成形品 |
WO2013171231A1 (fr) | 2012-05-14 | 2013-11-21 | Tata Steel Nederland Technology Bv | Acier à haute résistance présentant un module e accru et procédé pour la production dudit acier |
EP2703509A1 (fr) | 2012-08-28 | 2014-03-05 | Tata Steel Nederland Technology B.V. | Particules TiC et TiB2 haute résistance renforcées et acier à faible densité avec un module E amélioré et procédé de production dudit acier |
EP2703510A1 (fr) | 2012-08-28 | 2014-03-05 | Tata Steel Nederland Technology B.V. | Produit d'acier à particules renforcées avec module E amélioré et procédé de production de cet acier. |
JP2015533943A (ja) | 2012-09-14 | 2015-11-26 | タタ、スティール、ネダーランド、テクノロジー、ベスローテン、フェンノートシャップTata Steel Nederland Technology Bv | 弾性率が改良されたTiC粒子強化高強度低密度鋼製品およびその製造方法 |
JP6370787B2 (ja) * | 2012-09-14 | 2018-08-08 | タタ、スティール、ネダーランド、テクノロジー、ベスローテン、フェンノートシャップTata Steel Nederland Technology Bv | 弾性率が改良された高強度低密度粒子強化鋼およびその製造方法 |
WO2015001367A1 (fr) * | 2013-07-04 | 2015-01-08 | Arcelormittal Investigación Y Desarrollo Sl | Feuille d'acier laminée à froid, procédé de fabrication et véhicule |
WO2015185956A1 (fr) | 2014-06-06 | 2015-12-10 | ArcelorMittal Investigación y Desarrollo, S.L. | Tôle d'acier galvanisée polyphasique à résistance élevée, procédé de production et utilisation |
CN105838993B (zh) * | 2016-04-05 | 2018-03-30 | 宝山钢铁股份有限公司 | 具有增强弹性模量特征的轻质钢、钢板及其制造方法 |
MX393854B (es) * | 2017-04-21 | 2025-03-24 | Arcelormittal | Lámina de acero de alta formabilidad para la fabricación de partes estructurales ligeras y proceso de fabricación. |
US11725265B2 (en) | 2017-04-21 | 2023-08-15 | Arcelormittal | High formability steel sheet for the manufacture of lightweight structural parts and manufacturing process |
WO2020188783A1 (fr) * | 2019-03-20 | 2020-09-24 | 日本製鉄株式会社 | Tôle d'acier électromagnétique non orientée et son procédé de fabrication |
WO2021123896A1 (fr) * | 2019-12-20 | 2021-06-24 | Arcelormittal | Poudre métallique améliorée de fabrication additive |
JP7503634B2 (ja) * | 2019-12-20 | 2024-06-20 | アルセロールミタル | 付加製造用の金属粉末 |
CN110976796B (zh) * | 2019-12-24 | 2021-03-16 | 江苏集萃安泰创明先进能源材料研究院有限公司 | 一种降低残余热应力的非晶合金薄带制备方法 |
KR102273869B1 (ko) * | 2020-06-02 | 2021-07-06 | 현대제철 주식회사 | 알루미늄계 도금 블랭크, 이의 제조방법 및 알루미늄계 도금 블랭크 제조장치 |
CN113897540A (zh) * | 2020-06-22 | 2022-01-07 | 上海梅山钢铁股份有限公司 | 一种高强度精密冲压汽车座椅调节器齿盘用冷轧钢板 |
WO2022008956A1 (fr) | 2020-07-08 | 2022-01-13 | Arcelormittal | Procédé de coulage d'un demi-produit d'acier à haute teneur en titane |
FR3114447B1 (fr) | 2020-09-24 | 2022-11-11 | Constellium Neuf Brisach | Fond de bac batteries en acier pour vehicules electriques |
CN113174545B (zh) * | 2021-04-28 | 2022-12-09 | 上海交通大学 | 具有高温抗氧化的原位纳米颗粒增强FeCrB合金及其制备方法 |
MA71533A (fr) * | 2022-07-19 | 2025-05-30 | Arcelormittal | Procédé de soudage d'une tôle d'acier comprenant des précipités de tib2 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1063857A1 (ru) * | 1982-05-19 | 1983-12-30 | Институт черной металлургии | Сталь |
JPS59153837A (ja) * | 1983-02-22 | 1984-09-01 | Sumitomo Metal Ind Ltd | プレス成形用高強度冷延鋼板の製造法 |
SU1122009A1 (ru) * | 1983-07-19 | 1996-12-10 | Научно-Производственное Объединение По Технологии Машиностроения "Цниитмаш" | Коррозионно-стойкая сталь |
SU1384623A1 (ru) * | 1986-08-27 | 1988-03-30 | Научно-исследовательский институт автотракторных материалов | Сталь |
KR100252237B1 (ko) * | 1996-04-25 | 2000-04-15 | 정몽규 | 고압주조용 마그네슘 합금 |
JP3478930B2 (ja) * | 1996-08-29 | 2003-12-15 | 株式会社神戸製鋼所 | 高剛性高靱性鋼およびその製造方法 |
JPH10237583A (ja) * | 1997-02-27 | 1998-09-08 | Sumitomo Metal Ind Ltd | 高張力鋼およびその製造方法 |
FR2819825B1 (fr) * | 2001-01-24 | 2003-10-31 | Imphy Ugine Precision | Procede de fabrication d'une bande en alliage fe-ni |
JP3592659B2 (ja) * | 2001-08-23 | 2004-11-24 | 株式会社日本製鋼所 | 耐食性に優れたマグネシウム合金およびマグネシウム合金部材 |
JP3753101B2 (ja) * | 2002-07-03 | 2006-03-08 | 住友金属工業株式会社 | 高強度高剛性鋼及びその製造方法 |
JP4213021B2 (ja) * | 2003-11-25 | 2009-01-21 | 愛知製鋼株式会社 | 被削性の優れた溶製高剛性鋼 |
JP4172424B2 (ja) * | 2004-05-27 | 2008-10-29 | 住友金属工業株式会社 | 熱延鋼材及びその製造方法 |
-
2006
- 2006-09-06 EP EP06291413A patent/EP1897963A1/fr not_active Withdrawn
-
2007
- 2007-08-27 JP JP2009527173A patent/JP5298017B2/ja active Active
- 2007-08-27 UA UAA200902135A patent/UA95490C2/ru unknown
- 2007-08-27 ES ES07823448.1T patent/ES2659987T3/es active Active
- 2007-08-27 WO PCT/FR2007/001401 patent/WO2008029011A2/fr active Application Filing
- 2007-08-27 TR TR2018/02707T patent/TR201802707T4/tr unknown
- 2007-08-27 BR BRPI0716877A patent/BRPI0716877B1/pt active IP Right Grant
- 2007-08-27 CA CA2662741A patent/CA2662741C/fr active Active
- 2007-08-27 RU RU2009108338/02A patent/RU2416671C2/ru active
- 2007-08-27 CN CN2007800330419A patent/CN101563476B/zh active Active
- 2007-08-27 MX MX2009002411A patent/MX2009002411A/es active IP Right Grant
- 2007-08-27 KR KR1020097004737A patent/KR20090043555A/ko not_active Ceased
- 2007-08-27 EP EP07823448.1A patent/EP2064360B1/fr active Active
- 2007-08-27 HU HUE07823448A patent/HUE036845T2/hu unknown
- 2007-08-27 PL PL07823448T patent/PL2064360T3/pl unknown
-
2009
- 2009-02-26 ZA ZA2009/01377A patent/ZA200901377B/en unknown
- 2009-03-03 MA MA31679A patent/MA30698B1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
CA2662741C (fr) | 2012-02-07 |
CA2662741A1 (fr) | 2008-03-13 |
HUE036845T2 (hu) | 2018-08-28 |
MA30698B1 (fr) | 2009-09-01 |
EP2064360A2 (fr) | 2009-06-03 |
ES2659987T3 (es) | 2018-03-20 |
EP2064360B1 (fr) | 2017-12-27 |
JP2010502838A (ja) | 2010-01-28 |
CN101563476B (zh) | 2011-11-16 |
PL2064360T3 (pl) | 2018-06-29 |
RU2416671C2 (ru) | 2011-04-20 |
MX2009002411A (es) | 2009-03-20 |
EP1897963A1 (fr) | 2008-03-12 |
JP5298017B2 (ja) | 2013-09-25 |
WO2008029011A3 (fr) | 2008-05-02 |
WO2008029011A2 (fr) | 2008-03-13 |
TR201802707T4 (tr) | 2018-03-21 |
UA95490C2 (ru) | 2011-08-10 |
CN101563476A (zh) | 2009-10-21 |
RU2009108338A (ru) | 2010-09-20 |
KR20090043555A (ko) | 2009-05-06 |
BRPI0716877A2 (pt) | 2013-10-15 |
ZA200901377B (en) | 2009-12-30 |
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