JP5586007B2 - 冷間圧延されかつ連続的に焼きなましされた高強度鋼ストリップ及び該鋼の製造方法 - Google Patents
冷間圧延されかつ連続的に焼きなましされた高強度鋼ストリップ及び該鋼の製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims description 88
- 239000010959 steel Substances 0.000 title claims description 88
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 44
- 239000011701 zinc Substances 0.000 claims description 39
- 229910052725 zinc Inorganic materials 0.000 claims description 38
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 37
- 229910052782 aluminium Inorganic materials 0.000 claims description 35
- 238000000576 coating method Methods 0.000 claims description 35
- 239000011248 coating agent Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 26
- 239000011247 coating layer Substances 0.000 claims description 23
- 239000012535 impurity Substances 0.000 claims description 20
- 229910052749 magnesium Inorganic materials 0.000 claims description 20
- 229910001566 austenite Inorganic materials 0.000 claims description 16
- 229910000859 α-Fe Inorganic materials 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 238000005246 galvanizing Methods 0.000 claims description 14
- 238000000137 annealing Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 229910001563 bainite Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910000734 martensite Inorganic materials 0.000 claims description 8
- 230000000717 retained effect Effects 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims description 2
- 238000005244 galvannealing Methods 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 26
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 19
- 230000007797 corrosion Effects 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 238000005275 alloying Methods 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000011572 manganese Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910001562 pearlite Inorganic materials 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 210000004894 snout Anatomy 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007505 plaque formation Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 206010053567 Coagulopathies Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910017961 MgNi Inorganic materials 0.000 description 1
- 229910000794 TRIP steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000035602 clotting Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/02—Alloys based on zinc with copper as the next major constituent
-
- 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
- C22C38/06—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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
C 0.04〜0.30%
Mn 1.0〜3.5%
Si 0〜1.0%
Al 0〜2.0%
Cr 0〜1.0%
P 0〜0.02%
S 0〜0.01%
V 0〜0.25%
Nb 0〜0.1%
Ti 0〜0.20%
N 0〜0.015%
B 0〜0.010%
不可避不純物
残部鉄
を含んでなり、溶融亜鉛めっきされた亜鉛合金被覆層を備え、該亜鉛合金被覆層が、Mg0.3〜4.0%及びAl0.05〜6.0%及び所望により、不可避不純物と共に、一種以上の追加元素0.2%以下及び残部亜鉛からなる、冷間圧延されかつ連続的に焼きなましされた高強度鋼ストリップにより達成される。
−C 0.04〜0.30%
Mn 1.0〜3.5%
Si 0〜1.0%
Al 0〜2.0%
Cr 0〜1.0%
P 0〜0.02%
S 0〜0.01%
V 0〜0.25%
Nb 0〜0.1%
Ti 0〜0.20%
N 0〜0.015%
B 0〜0.010%
不可避不純物
残部鉄
を含んでなる、冷間圧延された鋼ストリップを用意する工程、
−該ストリップを変態区間焼きなまし温度IATに加熱する工程、
−該ストリップをIATに、所望のフェライト対オーステナイト比を得るのに十分な時間保持する工程、
−該ストリップを過時効温度OATに冷却する工程、
−該ストリップをOATに過時効時間保持する工程、
−該ストリップを亜鉛めっき温度GTに加熱する工程、
−該ストリップを、亜鉛浴温度ZBTを有し、亜鉛合金を含む溶融浴中に浸漬し、亜鉛合金被覆層を該鋼ストリップ上に施す工程、
−該ストリップを冷却する工程
を含んでなる、方法を提供する。
C 0.04〜0.16%、好ましくはC 0.08〜0.12%
Mn 1.4〜2.0%、好ましくはMn 1.5〜1.8%
Si 0.2〜0.4%、好ましくは少なくとも0.25%
Al 0.5〜1.5%
Cr 0.4〜0.8%
Ti 0〜0.05%
Nb 0〜0.03%
N 0〜0.01%
B 0〜0.002%、好ましくはホウ素を不純物として
V 不純物として
不可避不純物
残部鉄
を含んでなる、好ましくは上記元素からなる、方法を提供する。
Claims (13)
- 冷間圧延されかつ連続的に焼きなましされた高強度鋼ストリップの製造方法であって、連続した工程、すなわち、重量%で、
C:0.04〜0.30%、
Mn:1.0〜3.5%、
Si:0〜1.0%、
Al:0〜2.0%、
Cr:0〜1.0%、
P:0〜0.02%、
S:0〜0.01%、
V:0〜0.25%、
Nb:0〜0.1%、
Ti:0〜0.20%、
N:0〜0.015%、
B:0〜0.010%、
不可避不純物、
残部鉄、
を含んでなる、冷間圧延された鋼ストリップを用意する工程、
−前記ストリップを変態区間焼きなまし温度IATに加熱する工程、
−前記ストリップをIATに、所望のフェライト対オーステナイト比を得るのに十分な焼きなまし時間保持する工程、
−前記ストリップを過時効温度OATに冷却する工程、
−前記ストリップをOATに過時効時間保持する工程、
−前記ストリップを亜鉛めっき温度GTに加熱する工程、
−前記ストリップを、亜鉛浴温度ZBTを有し、亜鉛合金を含む溶融浴中に浸漬し、亜鉛合金被覆層を前記鋼ストリップ上に施す工程であって、前記亜鉛合金が、Mg:1.6〜2.3%及びAl:1.6〜2.3、所望により一種以上の追加元素を総量で0.2%以下、不可避不純物、残部亜鉛からなる工程、
−前記ストリップを冷却する工程、
を含んでなることを特徴とする、高強度鋼ストリップの製造方法。 - 前記OATが、前記GTより最高150℃低い、及び/または前記OATが、前記GTより少なくとも10℃低い、請求項1に記載の方法。
- 前記OATから前記GTへの温度増加が、誘導加熱工程により達成される、請求項1または2に記載の方法。
- 前記ZBTが前記GTより最高25℃低い、請求項1〜3のいずれか一項に記載の方法。
- 前記OATが350〜450℃である、及び/または前記ZBTが430〜490℃である、及び/または前記IATが750〜850℃である、請求項1〜4のいずれか一項に記載の方法。
- 前記鋼ストリップが、重量%で、
C:0.07〜0.16%、 Mn:1.4〜2.0%、 Si:0.2〜0.4%、
Al:0.5〜1.5%、
Cr:0.4〜0.8%、
Ti:0〜0.05%、
Nb:0〜0.03%、
N:0〜0.01%、
B:0〜0.002%、
不純物としてのV、
不可避不純物、
残部鉄
を含んでなる、請求項1〜5のいずれか一項に記載の方法。 - 前記鋼ストリップに含まれる前記C、Mn、Al、TiおよびBの量が、重量%で、
C:0.07〜0.20%、 Mn:1.2〜3.5%、 Al:0.5〜1.5%、
Ti:0〜0.15%、
B:0〜0.002%、
である、請求項1〜5のいずれか一項に記載の方法。 - 前記鋼ストリップに含まれる前記C、Mn、Si、Al、Ti、Nb、NおよびBの量が、重量%で、
C:0.07〜0.12%、
Mn:1.2〜2.0%、
Si:0〜0.4%、
Al:0〜1.0%、
Ti:0〜0.05%、
Nb:0〜0.07%、
N:0〜0.01%、
B:0〜0.002%、
である、請求項1〜5のいずれか一項に記載の方法。 - 前記鋼ストリップが、重量%で、
C:0.15〜0.30%、 Mn:1.5〜3.5%、
Al:0.5〜2.0%、
Nb:0〜0.05%、
N:0〜0.01%、
B:0〜0.002%、
不可避不純物、
残部鉄、
を含んでなる、請求項1〜5のいずれか一項に記載の方法。 - 前記鋼ストリップに含まれるC、Mn、Si、AlおよびNbの量が、重量%で、
C:0.15〜0.20%、
Mn:1.5〜2.0%、
Si:0.2〜0.6%、
Al:0.5〜1.5%、
Nb:0〜0.05%、
を含んでなる、請求項9に記載の方法。 - 前記OATが380〜430℃で40秒間〜150秒間の過時効時間である、請求項6に記載の方法。
- 前記被覆された鋼基材を、前記被覆工程の後で、前記冷却工程の前に、ガルバニーリング工程に付する、請求項1〜7のいずれか一項に記載の方法。
- 前記鋼ストリップが、フェライト90〜65重量%を含んでなり、前記構造の残りが針状フェライト、ベイナイト、マルテンサイトまたは残留オーステナイトである、請求項1〜10のいずれか一項に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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EP07003811 | 2007-02-23 | ||
EP07003811.2 | 2007-02-23 | ||
EP07004331.0 | 2007-03-02 | ||
EP07004331 | 2007-03-02 | ||
PCT/EP2008/052195 WO2008102009A1 (en) | 2007-02-23 | 2008-02-22 | Cold rolled and continuously annealed high strength steel strip and method for producing said steel |
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JP2010519415A JP2010519415A (ja) | 2010-06-03 |
JP5586007B2 true JP5586007B2 (ja) | 2014-09-10 |
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Country Status (11)
Country | Link |
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US (1) | US20100139816A1 (ja) |
EP (2) | EP3421634A1 (ja) |
JP (1) | JP5586007B2 (ja) |
KR (1) | KR20090122346A (ja) |
CN (1) | CN101627142B (ja) |
BR (1) | BRPI0807957A2 (ja) |
ES (1) | ES2683010T3 (ja) |
HK (1) | HK1139714A1 (ja) |
MX (2) | MX366540B (ja) |
RU (1) | RU2464338C2 (ja) |
WO (1) | WO2008102009A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20100139816A1 (en) | 2007-02-23 | 2010-06-10 | David Neal Hanlon | Cold rolled and continuously annealed high strength steel strip and method for producing said steel |
DE102009018577B3 (de) | 2009-04-23 | 2010-07-29 | Thyssenkrupp Steel Europe Ag | Verfahren zum Schmelztauchbeschichten eines 2-35 Gew.-% Mn enthaltenden Stahlflachprodukts und Stahlflachprodukt |
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- 2008-02-22 RU RU2009135411/02A patent/RU2464338C2/ru not_active IP Right Cessation
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RU2009135411A (ru) | 2011-03-27 |
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EP2115178B1 (en) | 2018-06-20 |
RU2464338C2 (ru) | 2012-10-20 |
MX2009008194A (es) | 2009-08-12 |
KR20090122346A (ko) | 2009-11-27 |
MX366540B (es) | 2019-07-12 |
BRPI0807957A2 (pt) | 2014-07-01 |
JP2010519415A (ja) | 2010-06-03 |
WO2008102009A1 (en) | 2008-08-28 |
HK1139714A1 (en) | 2010-09-24 |
CN101627142B (zh) | 2012-10-03 |
MX2019008366A (es) | 2019-09-16 |
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