EP1399276A1 - Verfahren und düsenanordnung zur breitenvariablen walzspaltschmierung eines walzgerüstes - Google Patents
Verfahren und düsenanordnung zur breitenvariablen walzspaltschmierung eines walzgerüstesInfo
- Publication number
- EP1399276A1 EP1399276A1 EP02747367A EP02747367A EP1399276A1 EP 1399276 A1 EP1399276 A1 EP 1399276A1 EP 02747367 A EP02747367 A EP 02747367A EP 02747367 A EP02747367 A EP 02747367A EP 1399276 A1 EP1399276 A1 EP 1399276A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzles
- dispersion
- spray
- oil
- lubrication
- 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.)
- Granted
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 title abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000006185 dispersion Substances 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 239000007970 homogeneous dispersion Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000000839 emulsion Substances 0.000 description 11
- 230000007423 decrease Effects 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
Definitions
- the invention relates to a method for roll lubrication, in particular for roll gap lubrication, in roll stands for rolled strip with an oil-in-water dispersion with predetermined compliance with both a mixture characteristic and a volume flow of the dispersion, these in a mixer with adjustable proportions of water and oil is processed into a homogeneous dispersion and applied to different spray zones for the distribution of bandwidth.
- the invention also relates to a nozzle arrangement for carrying out the method according to the invention.
- Document EP 1 040 877 A1 shows a device for roll lubrication or for roll gap lubrication of the rolls in a roll stand.
- the spray device which corresponds to the aforementioned prior art, shows three switching valves.
- the used dispersion is collected, separated into the different water / oil phases and fed into the device after reprocessing.
- An emulsion with 2% oil in water is prepared in a mixer tank and mixed by an agitator.
- the device is designed with triple dovetail nozzles for a flat, wide spray.
- the document EP 0 367 967 B1 describes a method for cooling and lubricating the rolls in a roll stand during the cold rolling of metal strips with the supply of emulsifiers and oil ⁇ / water emulsion containing at least one oil phase by means of roll gap emulsion nozzles, the emulsion before the rolls of the roll stand or before the strip inlet in the roll gap formed by work rolls is produced in a disperser by separate supply of the media forming the emulsion and the emulsion is collected after the roll lubrication function behind the roll stand, separated and the separated liquid phases separately to form the input - emulsion can be used.
- any oil concentration in the emulsion can be adjusted to the respective specifications of the rolling process at any time and with an extremely short time delay.
- the instantaneous flexibility of the cooling and lubrication system for cold rolling mills better product quality can be achieved with regard to the surface quality and the flatness of the rolled strip.
- the preparation of the emulsion is simplified and carried out in a more environmentally friendly manner, and at the same time the system costs are reduced in comparison to known emulsion circulation systems.
- Document EP 0 776 710 A1 discloses a device for influencing the profile of rolled rolled strip.
- further spray bars are assigned to the two end regions of the bales of the rollers, the effective range of which in each case extend from one end of the bale into the region of the roll strip edge facing this end of the bale.
- the object of the invention is to provide a method and a nozzle arrangement with which different rolling strip widths can be sprayed, with a constant, adjustable volume flow of the water being assumed and the mixing of the water / oil phases always constant ( ideal) should remain.
- the method according to the invention for roller lubrication, in particular for roll gap lubrication, in roll stands for rolled strip according to the preamble of claim 1 provides that at least one row of nozzles is assigned to each spray zone with an associated spray bandwidth, which is controlled in each case by at least one switching valve.
- the following rolling strip widths can advantageously be sprayed, for example:
- the claimed process produces ideal mixes regardless of width, whereby only a single mixer with pump, piping and return is required for all bandwidths and only three switching valves of the same series are required to control the amount of dispersion for all spray zones.
- the dispersion amount of a spray zone is discharged via only one switching valve.
- each row of nozzles is designed in such a way that the total number of its nozzle bores when the nozzle is activated
- Switch valve always discharges the same amount of dispersion, and thus the Flow conditions in the mixer remain unchanged for each spray zone. In this way, ideal and comparable conditions are always maintained.
- the method according to the invention provides that the proportionate amount of oil in the dispersion is additionally increased, for example from 0.25% to 0.40%, for an increasing width adjustment of individual spray zones.
- the method according to the invention provides in a further embodiment that the opening angle of the nozzle bores and / or the number thereof is formed in accordance with the spray width of each row of nozzles.
- a nozzle arrangement according to the invention for roll lubrication in particular for roll gap lubrication in roll stands for rolled strip for carrying out the claimed method, provides that in each case a number of spray nozzles of a spray zone required for the predeterminable spray medium volume flow is arranged in a separate row of nozzles, each with at least one controllable switching valve is connected.
- the entire amount of dispersion is switched to the width of a specifically coordinated row of nozzles using only one switching valve.
- the configuration of the nozzle arrangement provides that each row of nozzles is designed in such a way that its total number of nozzle bores each result in the same volume flow. This measure means that the flow conditions in the dispersion mixer and thus the mixing of water and oil components always remain constant. The decisive factor for the mixing is therefore the flow rate of the water and not the amount of oil.
- the rows of nozzles are arranged in a nozzle bar at a substantially constant distance parallel to the rolls or to the roll gap.
- the width setting can then be precisely adjusted via the nozzle spacing of each row of nozzles, the opening angle of the nozzles, the number of nozzles or a combination of opening angles. The number and spacing in each row. Further advantageous refinements of the nozzle arrangement are specified in other subclaims.
- Figure 2 shows a device for roller lubrication according to the invention.
- the reference numerals 4 and 7 denote flow meters for the two media water and oil.
- the number 6 shows a dosing pump for the proportionate measurement of small quantities of dispersion oil.
- the number 1 denotes a mixer known per se, in which the two media water and oil are mixed intimately.
- S1 to S3 designate three switching valves which are switched individually, for example by means of compressed air 9. Each of these switching valves S1 to S3 is connected to a spray zone Z1 to Z3.
- the spray zone Z1 is assigned four spray nozzles d1 to d4.
- the spray zone Z2 is assigned four switchable nozzles d6 and the spray zone Z3 is also assigned two further spray nozzles d7.
- zone Z1 the width-dependent nozzles d6 and d7 of zones Z2 and Z3 are now connected to zone Z1, as is shown in FIG. 1, for example, the required amount of water increases. Because this amount of water is always through it Cross-section in the mixer 1 must flow, the flow rate increases with the switching valves S2 and S3 in each case. If the mixing of oil and water is designed for the maximum flow, the effect with a minimal bandwidth and thus with a minimal amount of water will decrease significantly. The stability of the dispersion during the flow through the supply line to the pipes also decreases.
- a total of ten nozzles are connected in three spray zones Z1 to Z3.
- the minimum bandwidth requires four nozzles d1 to d4.
- three nozzles d5, d7 on the right and three nozzles d5, d7 on the left, are additionally activated. From a purely mathematical point of view, this results in a non-uniformity of 4/10 or 1/2/2 for the amount of water.
- FIG. 2 The embodiment of a device for roller lubrication with an oil-in-water dispersion shown in FIG. 2 avoids the disadvantage of the device according to FIG. 1.
- Reference numerals 5 and 8 denote pressure gauges for water and oil, and reference numeral 6 indicates a metering pump for oil measurement.
- the media water and oil are processed intimately in the mixer 1 to a homogeneous dispersion.
- This dispersion is a water-in-oil mixture of the smallest drops of oil in the water.
- the dispersion is first fed to three switching valves S1 to S3 for distribution across the rolls of a roll stand, which are not shown in detail, and from these the path to the different spray zones Z1 to Z3 is cleared.
- a separate spray zone Z1 to Z3 is assigned to one of the switching valves S1 to S3. Every spray zone has an assigned spray bandwidth B1 to B3 with an assigned nozzle row D1 to D3.
- the total dispersion quantity of a connectable spray zone Z1 to Z3 for the width B1 to B3 of an assigned row of nozzles D1 to D3 is discharged via only one switching valve S1 to S3.
- Each row of nozzles D1 to D3 is designed in such a way that the number of its nozzle bores always delivers the same amount of dispersion when the switching valve S1 to S3 is activated, and the flow conditions in mixer 1 therefore remain unchanged for each spray zone Z1 to Z3.
- the proportion of oil in the dispersion is also increased, for example from 0.25% to 0.40%. For a decreasing width adjustment, the proportion of oil in the dispersion is reduced accordingly.
- the opening angle of the nozzle bores shown in FIG. 2 and / or their number is formed in accordance with the spray bandwidth B1 to B3 of each row of nozzles.
- Each row of nozzles D1 to D3 is designed so that its nozzle bores each give the same volume flow and as a result the flow conditions in mixer 1 and thus the mixing of water and oil components always remain constant.
- the arrangement according to the invention can be seen particularly clearly in FIG. 2, that only one mixer is associated with the nozzle rows D1 to D3 or the switching valves S1 to S3, with a corresponding connection for water and oil. As a result, the slightly increased number of nozzles is outweighed compared to the prior art.
- the advantages of the nozzle arrangement according to the invention are:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Metal Rolling (AREA)
- Treatment Of Fiber Materials (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rolling Contact Bearings (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130445A DE10130445A1 (de) | 2001-06-23 | 2001-06-23 | Verfahren und Düsenanordnung zur breitenvariablen Walzspaltschmierung eines Walzgerüstes |
DE10130445 | 2001-06-23 | ||
PCT/EP2002/006353 WO2003000437A1 (de) | 2001-06-23 | 2002-06-11 | Verfahren und düsenanordnung zur breitenvariablen walzspaltschmierung eines walzgerüstes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1399276A1 true EP1399276A1 (de) | 2004-03-24 |
EP1399276B1 EP1399276B1 (de) | 2005-02-09 |
Family
ID=7689284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02747367A Expired - Lifetime EP1399276B1 (de) | 2001-06-23 | 2002-06-11 | Verfahren und düsenanordnung zur breitenvariablen walzspaltschmierung eines walzgerüstes |
Country Status (17)
Country | Link |
---|---|
US (1) | US7266984B2 (de) |
EP (1) | EP1399276B1 (de) |
JP (1) | JP4311544B2 (de) |
KR (1) | KR100849118B1 (de) |
CN (1) | CN1235694C (de) |
AT (1) | ATE288796T1 (de) |
AU (1) | AU2002317793B2 (de) |
BR (1) | BR0210554B1 (de) |
CA (1) | CA2451292C (de) |
CZ (1) | CZ298355B6 (de) |
DE (2) | DE10130445A1 (de) |
ES (1) | ES2236538T3 (de) |
MX (1) | MXPA03011764A (de) |
RU (1) | RU2287385C2 (de) |
UA (1) | UA79432C2 (de) |
WO (1) | WO2003000437A1 (de) |
ZA (1) | ZA200309397B (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030110781A1 (en) | 2001-09-13 | 2003-06-19 | Zbigniew Zurecki | Apparatus and method of cryogenic cooling for high-energy cutting operations |
US20030145694A1 (en) * | 2002-02-04 | 2003-08-07 | Zbigniew Zurecki | Apparatus and method for machining of hard metals with reduced detrimental white layer effect |
US7513121B2 (en) | 2004-03-25 | 2009-04-07 | Air Products And Chemicals, Inc. | Apparatus and method for improving work surface during forming and shaping of materials |
US7634957B2 (en) | 2004-09-16 | 2009-12-22 | Air Products And Chemicals, Inc. | Method and apparatus for machining workpieces having interruptions |
JP4355280B2 (ja) * | 2004-11-22 | 2009-10-28 | 新日本製鐵株式会社 | 冷間圧延における潤滑油供給方法 |
CN100443202C (zh) * | 2005-09-13 | 2008-12-17 | 北京伟世杰液压设备有限公司 | 轴承的润滑冷却方法及装置 |
US7390240B2 (en) * | 2005-10-14 | 2008-06-24 | Air Products And Chemicals, Inc. | Method of shaping and forming work materials |
US7434439B2 (en) * | 2005-10-14 | 2008-10-14 | Air Products And Chemicals, Inc. | Cryofluid assisted forming method |
KR100668698B1 (ko) | 2005-11-08 | 2007-01-16 | 주식회사 포스코 | 연연속 열간 압연 설비의 압연유 공급 장치 및 그 방법 |
BE1017462A3 (fr) * | 2007-02-09 | 2008-10-07 | Ct Rech Metallurgiques Asbl | Dispositif et procede de refroidissement de cylindres de laminage en regime hautement turbulent. |
EP2014379A1 (de) * | 2007-06-04 | 2009-01-14 | ArcelorMittal France | Walzwerk mit Kühlvorrichtung und Walzverfahren |
DE102007042898A1 (de) * | 2007-06-08 | 2008-12-11 | Sms Demag Ag | Verfahren und Vorrichtung zur Walzenschmierung |
CN101376137B (zh) * | 2007-08-31 | 2012-01-25 | 上海诸光机械有限公司 | 用于h型钢热轧工艺的润滑设备 |
BE1017806A3 (fr) | 2007-10-08 | 2009-07-07 | Ct Rech Metallurgiques Asbl | Installation et procede de lubrification par atomisation pour cylindres de laminage. |
EP2108465A1 (de) * | 2008-04-07 | 2009-10-14 | Siemens VAI Metals Technologies Ltd. | Verfahren und Vorrichtung für gesteuerte Kühlung |
DE102008050392A1 (de) * | 2008-06-18 | 2009-12-24 | Sms Siemag Aktiengesellschaft | Verfahren und Vorrichtung zum Schmieren von Walzen und eines Walzbandes eines Walzgerüsts |
DE102009040876A1 (de) | 2008-11-18 | 2010-05-20 | Sms Siemag Ag | Vorrichtung zum Kühlen einer Walze in einem Walzgerüst |
US8893519B2 (en) * | 2008-12-08 | 2014-11-25 | The Hong Kong University Of Science And Technology | Providing cooling in a machining process using a plurality of activated coolant streams |
JP2011173199A (ja) * | 2010-02-24 | 2011-09-08 | Makino Milling Mach Co Ltd | 工作機械及び加工液供給装置、並びに加工液 |
CN102078884B (zh) * | 2010-11-12 | 2013-01-02 | 北京工业大学 | 一种高压水射流带钢清洗装置 |
UA101031C2 (ru) * | 2010-11-23 | 2013-02-25 | Николай Григорьевич Дихтяренко | Способ смазки технологического инструмента для волочения профиля и труб и система для его осуществления |
CN102847631A (zh) * | 2011-06-29 | 2013-01-02 | 宝山钢铁股份有限公司 | 金属板带表面清洗喷嘴装置及其清洗方法 |
US9566623B2 (en) | 2012-02-15 | 2017-02-14 | Primetals Technologies Austria GmbH | Low maintenance nozzle mixer unit for roll nip lubrication |
EP2792428A1 (de) * | 2013-04-15 | 2014-10-22 | Siemens VAI Metals Technologies GmbH | Kühleinrichtung mit breitenabhängiger Kühlwirkung |
CN103706635B (zh) * | 2013-12-26 | 2016-08-17 | 河南万达铝业有限公司 | 一种铝带热轧系统 |
EP2893986A1 (de) * | 2014-01-08 | 2015-07-15 | Siemens VAI Metals Technologies GmbH | Schmierung mit Spritzdüsen mit mehreren Öleintrittsöffnungen |
PL3140057T5 (pl) * | 2014-05-09 | 2023-02-27 | Novelis, Inc. | Walcowanie z hybrydowym chłodzeniem olejowym i wodnym |
CN108160722B (zh) * | 2017-12-07 | 2019-07-26 | 燕山大学 | 一种二次冷轧机组乳化液喷嘴喷射方向角的优化方法 |
CN108160721B (zh) * | 2017-12-07 | 2019-03-22 | 燕山大学 | 一种乳化液喷淋架上喷嘴间距与喷嘴数量综合优化方法 |
Family Cites Families (11)
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US3803888A (en) * | 1973-03-07 | 1974-04-16 | Bethlehem Steel Corp | Method of reducing rolling mill roll wear |
DE3835460A1 (de) * | 1988-10-18 | 1990-04-19 | Schloemann Siemag Ag | Verfahren und vorrichtung zur kuehlung und schmierung spanlos umgeformter metalle, insbesondere zur kuehlung und schmierung von walzen und walzgut beim kaltwalzen in einem walzgeruest |
JPH03128113A (ja) * | 1989-10-11 | 1991-05-31 | Kawasaki Steel Corp | 圧延油供給装置 |
US5524465A (en) * | 1991-03-29 | 1996-06-11 | Hitachi, Ltd. | Work rolls crossing type mill, rolling system and rolling method |
FI97901C (fi) * | 1994-12-30 | 1997-03-10 | Wenmec Systems Oy | Anodikorvan oikaisu- ja työstömenetelmä |
JPH091017A (ja) * | 1995-06-22 | 1997-01-07 | Takimoto Giken Kogyo Kk | 室内用噴水 |
JPH0910817A (ja) * | 1995-06-27 | 1997-01-14 | Kawasaki Steel Corp | 圧延油のスプレーヘッダおよびその使用方法 |
JPH09101817A (ja) | 1995-10-09 | 1997-04-15 | Hitachi Ltd | プラント監視・制御方法及び装置 |
EP0776710B1 (de) * | 1995-11-20 | 2001-12-19 | SMS Demag AG | Vorrichtung zur Beeinflussung des Profils von gewalztem Walzband |
DE19744503A1 (de) * | 1997-10-09 | 1999-04-15 | Schloemann Siemag Ag | Vorrichtung und Verfahren zur Beeinflussung der Reibungsverhältnisse zwischen einer oberen und einer unteren Walze eines Walzgerüstes |
EP1040877A1 (de) * | 1999-03-17 | 2000-10-04 | Steel Authority of India Limited | Differentielles Kühlungssystem zur Regelung des thermischen Profils der Arbeitswalzen in einem Kaltreversierwalzwerk |
-
2001
- 2001-06-23 DE DE10130445A patent/DE10130445A1/de not_active Withdrawn
-
2002
- 2002-06-11 WO PCT/EP2002/006353 patent/WO2003000437A1/de active IP Right Grant
- 2002-06-11 CN CNB028125886A patent/CN1235694C/zh not_active Expired - Fee Related
- 2002-06-11 CZ CZ20033433A patent/CZ298355B6/cs not_active IP Right Cessation
- 2002-06-11 DE DE50202229T patent/DE50202229D1/de not_active Expired - Lifetime
- 2002-06-11 EP EP02747367A patent/EP1399276B1/de not_active Expired - Lifetime
- 2002-06-11 AU AU2002317793A patent/AU2002317793B2/en not_active Ceased
- 2002-06-11 AT AT02747367T patent/ATE288796T1/de active
- 2002-06-11 BR BRPI0210554-3A patent/BR0210554B1/pt not_active IP Right Cessation
- 2002-06-11 MX MXPA03011764A patent/MXPA03011764A/es active IP Right Grant
- 2002-06-11 CA CA002451292A patent/CA2451292C/en not_active Expired - Fee Related
- 2002-06-11 ES ES02747367T patent/ES2236538T3/es not_active Expired - Lifetime
- 2002-06-11 US US10/481,929 patent/US7266984B2/en not_active Expired - Fee Related
- 2002-06-11 RU RU2004101766/02A patent/RU2287385C2/ru not_active IP Right Cessation
- 2002-06-11 JP JP2003506669A patent/JP4311544B2/ja not_active Expired - Fee Related
- 2002-06-11 KR KR1020037016730A patent/KR100849118B1/ko not_active IP Right Cessation
- 2002-11-06 UA UA2004010501A patent/UA79432C2/uk unknown
-
2003
- 2003-12-03 ZA ZA200309397A patent/ZA200309397B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO03000437A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2451292A1 (en) | 2003-01-03 |
ES2236538T3 (es) | 2005-07-16 |
RU2287385C2 (ru) | 2006-11-20 |
US20040232258A1 (en) | 2004-11-25 |
BR0210554A (pt) | 2004-06-22 |
DE50202229D1 (de) | 2005-03-17 |
WO2003000437A1 (de) | 2003-01-03 |
ATE288796T1 (de) | 2005-02-15 |
CN1235694C (zh) | 2006-01-11 |
CA2451292C (en) | 2009-12-01 |
KR20040007746A (ko) | 2004-01-24 |
DE10130445A1 (de) | 2003-01-02 |
UA79432C2 (en) | 2007-06-25 |
CZ298355B6 (cs) | 2007-09-05 |
AU2002317793B2 (en) | 2007-06-28 |
JP2004530562A (ja) | 2004-10-07 |
JP4311544B2 (ja) | 2009-08-12 |
ZA200309397B (en) | 2004-03-02 |
CZ20033433A3 (cs) | 2004-12-15 |
US7266984B2 (en) | 2007-09-11 |
MXPA03011764A (es) | 2004-07-01 |
RU2004101766A (ru) | 2005-06-10 |
CN1518483A (zh) | 2004-08-04 |
BR0210554B1 (pt) | 2010-08-10 |
EP1399276B1 (de) | 2005-02-09 |
KR100849118B1 (ko) | 2008-07-30 |
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