WO2010025884A1 - Verfahren und vorrichtung zur verbesserung mechanischer eigenschaften von magnetisch aktivierbaren materialien - Google Patents
Verfahren und vorrichtung zur verbesserung mechanischer eigenschaften von magnetisch aktivierbaren materialien Download PDFInfo
- Publication number
- WO2010025884A1 WO2010025884A1 PCT/EP2009/006302 EP2009006302W WO2010025884A1 WO 2010025884 A1 WO2010025884 A1 WO 2010025884A1 EP 2009006302 W EP2009006302 W EP 2009006302W WO 2010025884 A1 WO2010025884 A1 WO 2010025884A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic
- magnetic
- processing area
- magnetic field
- magnetic fields
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Definitions
- the invention relates to a method and a device for improving the mechanical properties of magnetically activatable materials, in particular for reducing ripples in metallic materials such as metal strips or metal sheets according to the preamble of claims 1 and 16.
- Metal strips or metal sheets are finished with known treatment machines for strip or sheet materials in order to achieve necessary material properties in the material.
- Refining generally refers to a process of creating properties changed in materials.
- These belt or table treatment machines are known in a wide variety of embodiments and serve to bring about required material properties. They are used in strip processing or further processing lines, such as pickling lines, annealing lines, coating lines, rolling and finishing lines, transverse lines, stretch-bending straightening lines or the like, as well as combinations of different strip processing and further processing lines.
- Metal strips or metal sheets generally have material defects after their production, which are described by edge, center and / or longitudinal shafts. Likewise, combinations or superimpositions of edge, center and / or longitudinal shafts are possible which lead to the most varied material defects. These material defects are generally known and are more or less pronounced as wavinesses in the material.
- Planing describes a technical process for minimizing existing undulations in the material and is generally performed with known straightening machines or known drafting equipment.
- Each straightening machine basically consists of a stable frame, in which straightening rollers are used.
- the straightening rollers are housed in a suitable device, respectively above and below within the straightening machine.
- a suitable material guide opening at the inlet and outlet of the straightening machine enables the material to be transported through the straightening machine and thus through the straightening rollers.
- the upper and lower leveling rolls, also known as leveling set are stored by fixed distances between them and arranged one behind the other.
- the distance between the input-side upper and lower leveler set also known as the aperture ratio, can be adjusted in order to be able to transport and process different thicknesses of material through the leveler.
- the opening ratio is understood to mean the distance between the upper and lower straightening rollers on the input side in relation to the material thickness.
- the material to be processed is continuously fed through the material feed opening in the straightening machine.
- By introducing the material into the straightening machine and adjusting the opening ratio frictional contact is established between the material and the top and bottom straightening roller sets.
- the material is subjected to a temporary alternating bending load.
- the transport path is determined by the number of predetermined straightening rollers, in which the material is forcibly guided around the individual, top and bottom straightening rollers and subjected to mechanical bending. This alternating bending stress deforms the material at the edge regions of the surface by mutual tensile and compressive loads as a function of the opening ratio of the upper and lower leveling roller sets.
- these tensile and compressive loads decrease more or less in the depth of the material.
- a large aperture ratio reduces, a small aperture ratio increases the alternating bending stress of the material. If the tensile stress on the edge regions of the material surface locally reaches a material-characteristic limit value, which is known as the yield strength of the material, the material expands at these points and there remains a stretch in the material that represents a change in length.
- a previously existing in the material generally ripple is more or less improved by the time-limited alternating bending stress. This process is generally described as a straightening process.
- the straightening rolls are axi ally driven by a suitable mechanical coupling with a straightening roller drive unit and the material is transported by the driven straightening rollers, which clamp the material frictionally within the straightening machine.
- the material with the aid of a suitable mechanical Materialzulite- or pullout device which is located immediately in front of or behind a straightening machine, forcibly conveyed by the straightening machine.
- the material In driven and non-driven straightening machines, the material is loaded on the input side due to the distance and the spatial position of the top and bottom straightening rollers continuously with thrust and contact forces.
- the distance between the upper and lower straightening rollers is significantly smaller in the feed area of a straightening machine than in the outlet area.
- the strongly prevailing in the feed region of a straightening machine shear and contact forces are no longer present in the outlet region of the straightening machine. Due to the decaying shear and contact forces, a constant frictional engagement between the straightening rolls and the material can not form over the entire straightening process. However, sufficient friction between the straightening rollers and the material is absolutely necessary.
- Such a processing machine for strip or sheet materials is known from DE 699 03 834 T2.
- the material is passed between straightening rollers and compressed there.
- the force is generated magnetically, in which a main roll is made of non-magnetic material and is hollow, so that within the main roll, a magnet can be arranged.
- the cooperating press roll is made of magnetic material, so that the press roll is driven by means of the magnet against the main roll to generate the force required there for rolling.
- magnets in conjunction with a rolling device is known in this respect, but not for non-contact material finishing. An ultrasonic device is not proposed there.
- the present invention is based on the object, a straightening process or material finishing process for metal strips and to create metal panels that meet the requirements of all interconnected upstream and downstream machining processes.
- Core of the invention is, metal strips or metal panels, in principle further referred to as materials, suspend at least one spatially distributed and migrating magnetic field and / or at least one ultrasonic device, resulting in a partial elongation of the material to the edge of the yield strength to Ripples, which are represented by edge, center and / or longitudinal waves in the material to minimize and reduce.
- a magnetic field is achieved by a suitable, powerful, electrically adjustable current source that generates different magnetic field strengths.
- the magnetic field is spatially and passes through the material located in the magnetic field.
- Several juxtaposed and / or one behind the other, individually controllable magnets are referred to as a magnetic group. These generate a spatially extended spatial magnetic field and penetrate one of the magnetic group surface corresponding material content, which is located in the spatially spatially extended magnetic field.
- a time-varying and migratory magnetic field within a magnetic group which is achieved by electrical excitation of the individual magnets within a magnetic group and moves relative to the material, generates a significant component of force in the material, which leads to a local material deformation and thus structural change in the material ,
- this structural change can be increased up to the yield strength of the material and leads to a targeted extension and thus improvement of the waviness in the material.
- magnet groups are electrically switched so that immediately adjusts a local extension to the yield strength of the material and the local ripples are eliminated in the material.
- the force component required for this purpose which is required to produce an elongation in the material, depends on the material dimensions, the degree of waviness and the local position as well as the specific material properties.
- the spatial arrangement of the magnet groups is determined on the basis of material dimensions and material properties.
- an ultrasonic device in the material flow direction directly in front of or behind at least one magnet group or alternatively to the magnet group.
- the ultrasonic device preferably consists of two independent, freely rotatable and height-adjustable mounted rollers in which ultrasound sources are used.
- the surfaces of the rollers are coated with a sound-permeable coating, through which the sound energy penetrates almost lossless from the sound source on the sound-permeable coating in the material.
- the material is deflected by suitably arranged Umschlingungsrollen, which are respectively arranged in front of and behind the rollers.
- the wrap rollers in conjunction with the height-adjustable position of the rollers force surface contact between the sound-permeable pad of the rollers and the material, which ensures a coupling of the sound energy into the material.
- a number of ultrasonic sources are mounted according to the material width, which are electrically controlled individually.
- the individually, electrically adjustable ultrasonic sources generate sound amplitudes of certain excitation frequencies.
- the sound amplitudes and excitation frequencies of the individual ultrasound sources are based on the locally prevailing ripples or residual ripples in the material and the specific properties.
- a locally adjustable sound energy density of the ultrasonic waves eliminates existing ripples or ripples by the material is forcibly guided over a guide roller and a surface contact with the roller is ensured at all times and thereby a safe coupling of the sound energy is made possible in the material.
- the material upper and lower material side are supplied with sound energy, which contributes to an additional improvement of the waviness of the material.
- energy losses are avoided with only one-sided coupling of the sound energy.
- the detection device can then give the control of individual magnets or magnet groups or individual ultrasound devices control signals to selectively exposed ripples or disturbances of the surface structure corresponding forces through the magnets or ultrasonic devices suspend. Thus, if necessary, control or regulation is possible.
- FIG. 1 shows as an embodiment of the invention, the schematic view of the inventive method in a strip processing line.
- Fig. 1 shows the view of the method according to the invention in a strip processing line.
- a material strip or a material sheet hereinafter referred to as Terhin referred to as material 14, promoted by a suitable openable conveyor 1, 1a for a secure material supply in the field of magnetic field A.
- the region of the magnetic field A consists of individual magnets 2, 2a arranged side by side. 3, 3a; 4, 4a, which are arranged in the material flow direction and are defined below as at least one magnetic group.
- the material flow direction is indicated in Fig. 1 by an arrow.
- In the leaf depth and thus immediately behind the at least one magnet group 2, 2a; 3, 3a; 4, 4a are more magnet groups that completely cover the entire material width by their spatial arrangement.
- the conveying device 5, 5a After the material 14 has been conveyed via the conveyor 1, 1a in the region of the magnetic field A, there is a frictional connection between the conveyor 1, 1a and the material, so that the conveyor 1, 1a the material transport through the magnetic field A to second conveyor 5, 5a takes over. After the material 14 has left the conveying device 5, 5a, the conveying device 5, 5a is also frictionally connected to the material and the material is preferably located in the spatial center of the space filled with the magnetic field A. The conveyors 1, 1a and 5, 5a take over the material transport by a suitable drive.
- the conveyors 1, 1a and 5, 5a are arranged so that a firmly defined material height in, preferably in the middle of the magnetic field A is ensured at a distance from the magnets, so that contact of the material 14 with the magnetic poles of individual magnet groups 2, 2a; 3, 3a and 4, 4a can be completely excluded.
- the individual magnets of the magnet group 2, 2a; 3, 3a; 4, 4a of the magnetic field A are each electrically supplied by suitable electrical controls 15.
- suitable electrical controls 15 of the individual magnets 2, 2a; 3, 3a and 4, 4a within the at least one magnetic group a migratory magnetic field is generated which builds up a selective force effect of the respective switched-on magnetic group within the magnetic field A in or against the material flow direction.
- This type of force transmission, up to the yield point of the materials takes place without mechanical contact with the material and leads to the improvement of the wavinesses in the material. This completely avoids surface and material defects.
- the material is deflected by a deflection roller 6 and conveyed into the region of a first ultrasonic device, which is formed in the embodiment as a roller 8a.
- the deflection roller 6 ensures a maintenance of the material elevation and an individual height adjustment, such as a lowering of the roller 8a in the direction of the arrow 7 transversely to the material flow direction in order to ensure a variable angle of wrap of the material 14 with the roller 8a at all times and a necessary surface contact between the material 14 and the roller 8a produce.
- a roller differently shaped elements can also be used, provided that a preferably planar introduction of the sound energy into the material 14 is possible.
- the material 14 is locally and selectively applied to the roller 8a by the prevailing surface contact with sound energy by the sound energy on the roller 8a and the sound-permeable coating of the roller penetrates into the material 14.
- the material 14 is passed through a second, also individually adjustable in the direction of the arrow 7a or lowered roller 8, which also in conjunction with the guide roller 6a a variable wrap angle and a necessary surface contact between the Material 14 and the role 8 ensures.
- the original material height is restored.
- the described ultrasonic device 8, 8a in front of a magnetic field B with the magnet group 10, 10a; 11, 11a, 12, 12a, which is placed between the conveyors 9, 9a and 13, 13a, or to place an ultrasonic device 8, 8a between at least two magnetic fields A and B.
- the present inventive device only with a magnetic field A.
- the device can also be operated only with an ultrasound device in order to carry out a straightening process without the use of straightening rollers.
- the device may additionally comprise a detection device 16, which is arranged in the figure, for example, in front of and behind the magnetic field A.
- the detection device can optically detect the surface structure. sen and convert the detected information into signals for the control 15.
- the control 15 sets these signals in the control signal for the at least one magnetic group 2, 2a; 3, 3a; 4, 4a; 10, 10a; 1 1, 1 1a; 12, 12a and / or the at least one ultrasonic device in order to initiate targeted the appropriate countermeasures, for example for the elimination of ripples.
- the method and apparatus can be operated either alternatively with magnetic groups or ultrasonic devices or in combination with both means to perform contactless or at least waiving straightening rolls a material finishing.
- the preferred use is for use in belt treatment or table treatment lines or processing lines.
- Another preferred use is in combination with known straightening machines.
- the combinations and selection of the equipment of the device according to the invention depend on the requirements and special properties of the materials to be processed.
- - Variant of a magnet group 10, 10a; 11, 11a; 12, 12a for magnetic field B with control 15 and detection device 16 in conjunction with an ultrasonic device 6, 6a; 7, 7a; 8, 8a which can be operated on its own.
- the device according to the invention described above avoids the emergence of surface and material defects in materials by insufficient frictional engagement with straightening rollers.
- the device can be electrically adapted to all types of ripples electrical immediately without making any mechanical changes to the straightening unit and can also be used for minimum thicknesses.
- the use of the device according to the invention described above increases the production capacity in material refinements of different classes considerably.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Non-Mechanical Conveyors (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2735904A CA2735904C (en) | 2008-09-04 | 2009-09-01 | Method and apparatus for improving mechanical properties of magnetically-activatable materials |
| EP09778229A EP2337643B1 (de) | 2008-09-04 | 2009-09-01 | Verfahren und vorrichtung zur verbesserung mechanischer eigenschaften von magnetisch aktivierbaren materialien |
| ES09778229T ES2390117T3 (es) | 2008-09-04 | 2009-09-01 | Procedimiento y dispositivo para la mejora de propiedades mecánicas de materiales activables magnéticamente |
| CN200980134612.7A CN102143811B (zh) | 2008-09-04 | 2009-09-01 | 用于改善可磁激活材料的机械性能的方法和设备 |
| BRPI0918235A BRPI0918235A2 (pt) | 2008-09-04 | 2009-09-01 | metodo de aparelho para melhorar propriedades mecanicas de materiais ativaveis magneticamente |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008045743.4 | 2008-09-04 | ||
| DE102008045743A DE102008045743B3 (de) | 2008-09-04 | 2008-09-04 | Verfahren und Vorrichtung zur Verbesserung mechanischer Eigenschaften von magnetisch aktivierbaren Materialien |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010025884A1 true WO2010025884A1 (de) | 2010-03-11 |
Family
ID=41412459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/006302 Ceased WO2010025884A1 (de) | 2008-09-04 | 2009-09-01 | Verfahren und vorrichtung zur verbesserung mechanischer eigenschaften von magnetisch aktivierbaren materialien |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8297095B2 (de) |
| EP (1) | EP2337643B1 (de) |
| CN (1) | CN102143811B (de) |
| BR (1) | BRPI0918235A2 (de) |
| CA (1) | CA2735904C (de) |
| DE (1) | DE102008045743B3 (de) |
| ES (1) | ES2390117T3 (de) |
| TW (1) | TWI485260B (de) |
| WO (1) | WO2010025884A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101548310B1 (ko) * | 2013-12-30 | 2015-08-28 | 코닝정밀소재 주식회사 | 필름 부착 방법 및 장치 |
| CN107081344B (zh) * | 2017-05-04 | 2019-12-03 | 西南石油大学 | 一种用于薄壁挤压金属材的电磁防弯装置 |
| CN111468560A (zh) * | 2020-04-15 | 2020-07-31 | 苏州大学 | 大面积微流道极板超声场助校形装置 |
| JP2024519666A (ja) * | 2021-04-13 | 2024-05-21 | ノベリス・インコーポレイテッド | 金属処理用の非接触式ルーパ及び関連する方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2236247A1 (de) * | 1972-07-24 | 1974-02-14 | Sutton Eng Co | Rollenrichtmaschine |
| US3928657A (en) * | 1971-04-15 | 1975-12-23 | British Steel Corp | Strip shape correction on galvanising line |
| JPS59189015A (ja) * | 1983-04-11 | 1984-10-26 | Mitsubishi Seikou Jizai Kk | 鋼板の磁気的矯正装置 |
| JPH07256341A (ja) * | 1994-03-23 | 1995-10-09 | Nippon Steel Corp | 非接触ストリップ矯正装置 |
| JPH09108736A (ja) * | 1995-10-13 | 1997-04-28 | Mitsubishi Heavy Ind Ltd | ストリップの形状矯正装置 |
| JP2001205325A (ja) * | 2000-01-21 | 2001-07-31 | Nkk Corp | 薄鋼板非接触制御用電磁石 |
| JP2007237193A (ja) * | 2006-03-06 | 2007-09-20 | Jfe Steel Kk | 非接触式鋼板矯正装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5114479B2 (de) * | 1972-07-24 | 1976-05-10 | ||
| US4911950A (en) * | 1986-06-30 | 1990-03-27 | Matsushita Electric Industrial Co., Ltd. | Method of smoothing magnetic film |
| JPH081037B2 (ja) * | 1989-02-15 | 1996-01-10 | 株式会社ベルマティック | 磁気利用のロ−ル加圧装置 |
| JP3002331B2 (ja) * | 1992-06-26 | 2000-01-24 | 株式会社神戸製鋼所 | 鋼板の制振装置 |
| JP4525105B2 (ja) * | 2004-02-23 | 2010-08-18 | Jfeスチール株式会社 | 金属帯の制御装置および溶融めっき金属帯の製造方法 |
-
2008
- 2008-09-04 DE DE102008045743A patent/DE102008045743B3/de not_active Expired - Fee Related
-
2009
- 2009-09-01 CA CA2735904A patent/CA2735904C/en not_active Expired - Fee Related
- 2009-09-01 EP EP09778229A patent/EP2337643B1/de not_active Not-in-force
- 2009-09-01 TW TW098129360A patent/TWI485260B/zh not_active IP Right Cessation
- 2009-09-01 WO PCT/EP2009/006302 patent/WO2010025884A1/de not_active Ceased
- 2009-09-01 CN CN200980134612.7A patent/CN102143811B/zh not_active Expired - Fee Related
- 2009-09-01 BR BRPI0918235A patent/BRPI0918235A2/pt not_active Application Discontinuation
- 2009-09-01 ES ES09778229T patent/ES2390117T3/es active Active
- 2009-09-03 US US12/585,105 patent/US8297095B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928657A (en) * | 1971-04-15 | 1975-12-23 | British Steel Corp | Strip shape correction on galvanising line |
| DE2236247A1 (de) * | 1972-07-24 | 1974-02-14 | Sutton Eng Co | Rollenrichtmaschine |
| JPS59189015A (ja) * | 1983-04-11 | 1984-10-26 | Mitsubishi Seikou Jizai Kk | 鋼板の磁気的矯正装置 |
| JPH07256341A (ja) * | 1994-03-23 | 1995-10-09 | Nippon Steel Corp | 非接触ストリップ矯正装置 |
| JPH09108736A (ja) * | 1995-10-13 | 1997-04-28 | Mitsubishi Heavy Ind Ltd | ストリップの形状矯正装置 |
| JP2001205325A (ja) * | 2000-01-21 | 2001-07-31 | Nkk Corp | 薄鋼板非接触制御用電磁石 |
| JP2007237193A (ja) * | 2006-03-06 | 2007-09-20 | Jfe Steel Kk | 非接触式鋼板矯正装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2337643A1 (de) | 2011-06-29 |
| CN102143811A (zh) | 2011-08-03 |
| BRPI0918235A2 (pt) | 2015-12-15 |
| EP2337643B1 (de) | 2012-05-30 |
| CA2735904C (en) | 2017-01-17 |
| TW201026856A (en) | 2010-07-16 |
| US8297095B2 (en) | 2012-10-30 |
| CA2735904A1 (en) | 2010-03-11 |
| CN102143811B (zh) | 2014-08-20 |
| DE102008045743B3 (de) | 2010-04-08 |
| TWI485260B (zh) | 2015-05-21 |
| US20100050722A1 (en) | 2010-03-04 |
| ES2390117T3 (es) | 2012-11-06 |
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