WO2007135802A1 - 先,後行金属板の幅揃え方法及び装置と連続圧延設備 - Google Patents
先,後行金属板の幅揃え方法及び装置と連続圧延設備 Download PDFInfo
- Publication number
- WO2007135802A1 WO2007135802A1 PCT/JP2007/055173 JP2007055173W WO2007135802A1 WO 2007135802 A1 WO2007135802 A1 WO 2007135802A1 JP 2007055173 W JP2007055173 W JP 2007055173W WO 2007135802 A1 WO2007135802 A1 WO 2007135802A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal plate
- joining
- width
- width direction
- trailing
- 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
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
Definitions
- the present invention applies the width alignment device and method for leading and trailing metal plates and the width alignment method and device at the time of joining the tail end portion of the preceding metal plate and the tip portion of the trailing metal plate. It relates to continuous rolling equipment.
- Patent Document 1 a steel comprising a cutting machine that cuts the rear end portion of the preceding material and the front end portion of the succeeding material, and a joining machine that heats and press-contacts the rear end portion and the front end portion after cutting.
- a device and a method for centering a steel piece by disposing side guide devices for holding and centering a steel piece from both sides on a cutting machine entry / exit side and a joining machine entry / exit side are disclosed. Also, it is stated that according to the present apparatus and method, since centering can be performed during cutting, heating, and pressure welding, joint failure due to a butt failure such as center misalignment or mouth opening can be reliably prevented.
- Patent Document 2 in an apparatus that abuts and joins the trailing end of the preceding rolled material and the leading end of the following rolled material, the preceding rolled material and the following rolled material are independently set at the center of the rolling facility (pass center). It is disclosed that a hydraulic side guide device to be held in 1) is provided.
- Patent Document 1 Japanese Patent No. 3377924
- Patent Document 2 Japanese Patent No. 2947612
- a partial bend may occur near the tail end of the preceding metal plate or the tip end of the succeeding metal plate rolled out from the coil box.
- the side guide device bends near the tail end of the preceding metal plate or near the tip of the following metal plate only with the centering function. In some cases, a width shift state occurs at the joint.
- the joining method is a method of completing joining in the shearing process in which the ends of the preceding and succeeding metal plates are overlapped, as shown in FIG.
- the first to fourth vertical roller pairs 101a of the side guide device ⁇ When the joining is completed in the shearing process in which the ends of the preceding metal plate 100A and the trailing metal plate 100B are centered by the Old and the ends thereof are overlapped at the joining position (Fig. 7 (b) ⁇ Fig. 7 (See (c) of Fig. 7), a width deviation state (see width deviation part i, mouth in Fig. 7 (c)) occurs at the joint. This phenomenon is particularly remarkable when the direction of the partial bending is different as shown in FIG.
- the width deviation part i and the mouth remain generated.
- the interval L is set to
- the joint portion is formed in the width direction every time the joint portion of the succeeding metal plates 100A and 100B passes. Because you are not restrained, you cannot correct the bend. This state is held until it is scraped off at the exit side of the finish rolling mill 102, and consideration must be given to avoid interference in the width direction with the guide plate pair 103. There was also.
- the wound coil has a problem that a large step is left at the joint of the first and second metal plates; LOOA, 100B, and the width deviation state remains.
- the present invention has been made in view of the above circumstances, and is provided at the joining position of the preceding and succeeding metal plates. It is an object of the present invention to provide a leading and trailing metal plate width aligning method and apparatus, and a continuous rolling facility capable of correcting the bending deviation in the vicinity of the joint portion as much as possible.
- a width aligning method for a preceding metal plate and a trailing metal plate is joined to each other in the pass line direction. Prior to this, at least one of the preceding metal plate and the succeeding metal plate is reduced so as to reduce the deviation of the center position in the width direction at the joining position of the rear end portion of the preceding metal plate and the leading end portion of the following metal plate. It is characterized by shifting in the width direction.
- the amount of shift in the width direction is detected by detecting the bent state of the rear end portion of the preceding metal plate or the front end portion of the subsequent metal plate, and the shift amount of the center position in the width direction at the joining position is detected from the detection result. It is the amount of movement obtained in order to obtain and adjust to reduce the deviation of the center position in the width direction based on this deviation amount.
- the full length portion of the preceding metal plate advances substantially at the same position while bending near the rear end portion, or the full length portion of the succeeding metal plate advances at substantially the same position. It is characterized by bending near the tip.
- the amount of bending is within the range of elastic deformation of the preceding metal plate or the succeeding metal plate.
- joining a method is used in which joining is performed in a cutting process in which the ends of the preceding and succeeding metal plates are overlapped.
- a first vertical roller is disposed in front of the joining position, and a second vertical roller is disposed at the anti-joining position of the first vertical roller, and the second The vertical roller determines the width position of the full length part, and the first vertical roller reduces the deviation of the center position in the width direction of the joining position of the rear end part of the preceding metal plate and the front end part of the rear metal plate. As described above, the second vertical roller is shifted in the width direction.
- a width aligning device for leading and trailing metal plates includes:
- a joining device for joining the rear end portion of the preceding metal plate and the front end portion of the succeeding metal plate under the progress in the pass line direction;
- a side guide device that shifts at least one of the preceding metal plate and the following metal plate in the width direction at the joining position
- the side guide device is driven and controlled so as to reduce the shift of the center position in the width direction between the rear end portion of the preceding metal plate and the front end portion of the subsequent metal plate at the joining position.
- a control device ;
- a continuous rolling facility includes a finishing mill and a downcoiler that are configured by a rough mill, a coil box, a joining device, and a plurality of rolling mills sequentially from the upstream side in the pass line direction. And a width aligning device for the front and rear metal plates is interposed between the coil box and the finishing mill.
- the shift in the center position in the width direction at the joining position of the trailing end portion of the preceding metal plate and the leading end portion of the succeeding metal plate is reduced.
- the width deviation at the joining position of the preceding and succeeding metal plates is reduced.
- the width deviation at the time of joining caused by the bending existing at the rear end portion of the preceding metal plate or the front end portion of the succeeding metal plate is made as small as possible.
- the side guide device makes it possible to correct the bend, and finish rolling is possible while reducing the bend of the entire length including the joining position.
- FIG. 1 is a schematic side view of a continuous (hot) rolling facility showing an embodiment of the present invention.
- FIG. 2 is also a plan view.
- FIG. 3 is a front view of a pair of vertical rollers.
- FIG. 4 is also a control block diagram.
- FIG. 5 is an explanatory view of the action during joining.
- FIG. 6 is an explanatory view of the action when the joint passes through the plate-like side guide.
- FIG. 7 is an explanatory diagram of the action during joining, showing a conventional defect.
- FIG. 8 is an explanatory diagram of an action when passing through a joint in a plate-like side guide showing a conventional defect.
- FIG. 1 is a schematic side view of a continuous (hot) rolling facility showing an embodiment of the present invention
- FIG. 2 is also a plan view
- FIG. 3 is a front view of a pair of vertical rollers
- FIG. FIG. 5 is a control block diagram
- FIG. 5 is an explanatory diagram of the action at the time of joining
- FIG. 1 is a schematic side view of a continuous (hot) rolling facility showing an embodiment of the present invention
- FIG. 2 is also a plan view
- FIG. 3 is a front view of a pair of vertical rollers
- FIG. FIG. 5 is a control block diagram
- FIG. 5 is an explanatory diagram of the action at the time of joining
- the continuous (hot) rolling equipment of this example is composed of a rough rolling machine (coarse mill) 1, a coil box 2, a joining device 3, and a plurality of stands from the upstream side.
- a finishing mill (finishing mill) 4 and a down coiler 5 constituted by a rolling mill are provided.
- the succeeding metal plate (following sheet bar) 6 roughly rolled in the rough mill 1 is scraped by the coil box 2 coiler, and the difference in travel speed between the rough mill 1 and the finishing mill 4 is adjusted.
- the leading end of the succeeding sheet bar 6 squeezed out from the coiler of the coil box 2 (the crop is cut by the crop shear 7 if necessary) is connected to the leading metal plate (leading sheet) by the overlapping device 8 of the joining device 3. Bar) Overlaid on the rear end of 9 (the crop is cut by crop shear 7 if necessary).
- the joining device 3 is configured to join the rear end portion of the preceding seat bar 9 and the front end portion of the succeeding seat bar 6 while traveling, and is a short-time joining device capable of joining in a short time. .
- a configuration in which the joining machine 10 moves following the traveling of the seat bar or a configuration in which the joining machine 10 swings following the traveling of the seat bar can be applied. is there.
- the joining machine 10 of the joining device 3 in the present embodiment sandwiches the overlapping portion of the rear end portion of the preceding sheet bar 9 and the front end portion of the succeeding seat bar 6 and pushes them from both sides for shearing.
- the joining mechanism has a pair of shearing blades to be joined.
- the sheet bar 11 sent to the finishing mill 4 is successively hot-rolled by a plurality of stand mills and finish-rolled to a desired thickness, and the sheet bar 11 exiting the finishing mill 4 is fed to the down coiler 5. Be taken away.
- a split shear (not shown) is installed in front of the down coiler 5, and the sheet bar 11 joined in front of the finishing mill 4 is scraped by the down coiler 5 while being split by the split shear. Yes.
- 15 is a crop shear provided on the entrance side of the finishing mill 4
- 16 is an edge heater disposed upstream of the pass line of the crop shear 15, and 17 is downstream of the pass line of the edge heater 16.
- a bar heater 18 disposed close to the side, and a descaler 18 disposed close to the upstream side of the pass line of the joining device 3.
- the arrangement of the crop shear 15, the edge heater 16, the bar heater 17 and the descaler 18 is appropriately selected depending on the situation of the continuous (hot) rolling facility, and the arrangement position and arrangement are not limited. Presence / absence or the like is not limited to the illustrated example.
- the first bending force measuring device (curving force S) that detects the bending (state) at the leading end of the succeeding seat bar 6 close to the downstream side of the pass line of the crop shear 7 is detected.
- the first bend measuring instrument 20 and the second bend measuring instrument 21 are, for example, CCD cameras, and their image signals are sent to a control device 30 described later.
- first and second vertical rows as side guide devices are located close to the upstream side of the pass line of the first bending measuring instrument 20 (located in the upstream side of the pass line of the crop shear 7 in the illustrated example).
- La pairs 22, 23 are spaced apart by a predetermined distance.
- the first and second vertical roller pairs 22 and 23 are used for centering the succeeding sheet bar 6 in order to measure the bend at the leading end of the succeeding sheet bar 6 by the first bend measuring instrument 20.
- the side guide device is located close to the downstream side of the pass line of the second bending measuring instrument 21, that is, upstream of the pass line of the joining device 3 (in the illustrated example, sandwiching the descaler 18).
- the third and fourth vertical roller pairs 24, 25 (the third vertical roller pair 24 corresponds to the second vertical roller of claim 6, and the fourth vertical roller pair 25 corresponds to the first vertical roller of claim 6. (Corresponding to rollers) are arranged at a predetermined interval.
- the third and fourth vertical roller pairs 24 and 25 center the leading sheet bar 9 in order to measure the bending at the trailing end of the leading sheet bar 9 with the second bending measuring instrument 21, and at the time of joining
- the row sheet bar 6 is movable so as to reduce the bending at the front end.
- the fifth and sixth longitudinal roller pairs 26, 27 are located on the downstream side of the pass line of the joining device 3 (in the illustrated example, sandwiching the crop processing device 12) as side guide devices.
- the vertical roller pair 26 corresponds to the first vertical roller of claim 6 and the sixth vertical roller pair 27 corresponds to the second vertical roller of claim 6).
- the fifth and sixth vertical roller pairs 26, 27 are movable so as to reduce bending at the rear end portion of the preceding sheet bar 9 at the time of joining.
- the first to sixth vertical roller pairs 22 to 27 are orthogonal to the pass line by a pair of left and right first to sixth vertical roller pairs driving devices 22a, 22b to 27a, 27b. It is movable in the direction, that is, the width direction of the seat bar.
- the fourth and fifth vertical roller pair drive devices 25a, 25b, 26a, and 26b can operate independently on the left and right sides in the figure, and the other vertical roller pair drive devices 22a, 22b to 24a, 24b, 27a and 27b are movable in the closing direction or the opening direction in synchronization with the left and right ones in the figure.
- the pair drive devices 22a, 22b to 24a, 24b, 27a, 27b are configured so that the left and right ones in the figure can operate independently. It goes without saying that it is good.
- the pair of left and right first to sixth vertical roller pair driving devices 22a, 22b to 27a, 27b are, for example, hydraulic cylinders, and their expansion and contraction operations are driven and controlled by a control device 30 described later.
- reference numeral 28 denotes a pair of guide plates as side guide devices arranged on the entry side of the finishing mill 4, and the guide plate pair drive devices 28a and 28b (see FIG. 4) are also included.
- Drive control is performed by a control device 30 described later.
- an image signal is input to the control device 30 from the first and second bending measuring devices 20 and 21. Based on these input signals such as image signals, the left and right pair of first to sixth vertical roller pair driving devices 22a, 22b to 27a, 27b and guide plate pair driving devices 28a, 28b are driven and controlled.
- the first and second vertical roller pair driving devices 22a, 22b, 23a, 23b are driven, and the first and second vertical roller pairs 22, 23 drive the trailing sheet bar.
- the first bending measuring instrument 20 detects and measures the bending state of the trailing seat bar 6.
- the third and fourth vertical roller pair driving devices 24a, 24b, 25a, 25b are driven, and the rear end portion of the preceding sheet bar 9 is centered by the third and fourth vertical roller pairs 24, 25.
- the second bending measuring device 21 detects and measures the bending (state) at the rear end of the preceding sheet bar 9.
- the measurement includes, for example, a method in which the center position is obtained from both width end positions by measuring both width end positions.
- the 4th and 5th vertical rollers After calculating the amount of movement of the 4th and 5th vertical roller pairs 25 and 26 (the 3rd and 6th vertical roller pairs 24 and 27 are fixed at the centered position), the 4th and 5th vertical rollers correspondingly Pair drive Stroke the devices 25a, 25b, 26a, 26b in the opposite direction (see the arrows in Fig. 5 (b)) to shift the leading end of the trailing seat bar 6 and the trailing end of the leading seat bar 9 in the width direction. At this time, it is possible to adjust so that the shift amounts ⁇ , ⁇ of the center position in the width direction are reduced by moving only one of the fourth and fifth vertical roller pairs 25, 26. Needless to say.
- the joining device 10 of the joining device 3 is joined while being sheared by pressing from both sides of the overlapping portion of the rear end portion of the preceding sheet bar 9 and the front end portion of the succeeding sheet bar 6. It is. At this time, as shown in Fig. 5 (c), the joints are joined without any width misalignment (see Fig. 7 (c) b).
- control device 30 drives and controls the guide plate pair drive devices 28a and 28b, and appropriately controls the interval between the guide plate pair 28, for example, the interval shown in FIG. 6 (a). Control to L
- L, L can be a force s. This is because, as described above, there is a width shift state at the joint.
- the leading end portion of the succeeding sheet bar 6 and the trailing end portion of the preceding sheet bar 9 are viewed from both sides with the overlapping portion therebetween.
- the bending (state) at the leading end of the trailing seat bar 6 and the bending (state) at the trailing end of the preceding seat bar 9 are detected and measured, and the joining position is determined from the measurement results.
- the amount of deviation ⁇ , 5 of the center position in the width direction is calculated and the deviation fp
- the shift amount is the elastic deformation of the seat bar. It is preferable to be within the range. If the elastic deformation range is exceeded, permanent deformation remains in the width direction, and the position in the width direction between the fourth and fifth vertical roller pairs 25, 26 and the joining position changes every moment. It is difficult to secure a desired position in the width direction at the position.
- the width deviation at the time of joining due to the bending existing at the leading end portion of the succeeding seat bar 6 or the trailing end portion of the preceding seat bar 9 is made as small as possible. It becomes possible to correct the bend, and it is possible to perform a finish rolling with less force in the entire length including the joining position. Even when the sheet bar 11 is passed through the finishing mill 4 on the exit side, there is no bending, which is good. In addition, even in the coiled shape, there is an effect that there is no large step at the joint.
- the center position in the width direction of the rear end portion of the preceding seat bar 9 and the front end portion of the succeeding seat bar 6 is the same as that of the substantially full length portion (general portion). It is possible to pass through the position, and there is an advantage that rolling is stabilized.
- the setting method of the side guide device on the entrance side of each rolling mill of the finishing mill 4 can be eliminated, so that the setting method can be easily performed. Become.
- the joining method is a method in which the joining process is completed by overlapping and joining
- the cutting by the cutting machine (crop shear) before joining may not be necessary. If it is not a butt, the above-mentioned bending can be reduced regardless of the presence or absence of cutting with a cutting machine (crop shear).
- the method and apparatus for aligning the width of the preceding and succeeding metal plates and the continuous rolling facility according to the present invention are particularly suitable when employed in a hot rolling line.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-137188 | 2006-05-17 | ||
| JP2006137188A JP4778832B2 (ja) | 2006-05-17 | 2006-05-17 | 先,後行金属板の幅揃え方法及び装置と連続圧延設備 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007135802A1 true WO2007135802A1 (ja) | 2007-11-29 |
Family
ID=38723115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/055173 Ceased WO2007135802A1 (ja) | 2006-05-17 | 2007-03-15 | 先,後行金属板の幅揃え方法及び装置と連続圧延設備 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4778832B2 (ja) |
| CN (2) | CN103769436B (ja) |
| WO (1) | WO2007135802A1 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009348758B2 (en) * | 2009-06-23 | 2013-08-29 | Sms Siemag Ag | Method and device for processing a slab |
| EP2527056A1 (de) | 2011-05-24 | 2012-11-28 | Siemens Aktiengesellschaft | Verfahren zum Walzen von Platten, Computerprogramm, Datenträger und Steuereinrichtung |
| CN105170712B (zh) * | 2015-09-02 | 2017-04-26 | 马鞍山景顺金属加工有限公司 | 自动校平测距剪板机组及其控制方法 |
| JP7512999B2 (ja) * | 2021-11-22 | 2024-07-09 | Jfeスチール株式会社 | 鋼帯の連続処理設備、鋼帯の連続処理方法、鋼帯、及び鋼帯製造方法 |
| CN116550883A (zh) * | 2023-07-10 | 2023-08-08 | 南通四方节能科技有限公司 | 一种金属面夹芯板连续生产线 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04319005A (ja) * | 1991-04-18 | 1992-11-10 | Hitachi Ltd | 連続熱間薄板圧延設備および圧延材の先端曲り矯正装置 |
| JP2005254248A (ja) * | 2004-03-09 | 2005-09-22 | Mitsubishi-Hitachi Metals Machinery Inc | 熱間圧延設備及び熱間圧延方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3771869B2 (ja) * | 2002-05-17 | 2006-04-26 | 三菱重工業株式会社 | 連続熱間圧延設備 |
| JP2004237340A (ja) * | 2003-02-07 | 2004-08-26 | Fuji Photo Film Co Ltd | ウェブ接合装置、およびウェブ接合方法 |
| JP2003266107A (ja) * | 2003-03-11 | 2003-09-24 | Jfe Steel Kk | 熱間圧延設備 |
| JP4698132B2 (ja) * | 2003-07-31 | 2011-06-08 | 三菱日立製鉄機械株式会社 | 熱間圧延設備 |
-
2006
- 2006-05-17 JP JP2006137188A patent/JP4778832B2/ja active Active
-
2007
- 2007-03-15 CN CN201310726290.3A patent/CN103769436B/zh active Active
- 2007-03-15 WO PCT/JP2007/055173 patent/WO2007135802A1/ja not_active Ceased
- 2007-03-15 CN CNA2007800145691A patent/CN101426593A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04319005A (ja) * | 1991-04-18 | 1992-11-10 | Hitachi Ltd | 連続熱間薄板圧延設備および圧延材の先端曲り矯正装置 |
| JP2005254248A (ja) * | 2004-03-09 | 2005-09-22 | Mitsubishi-Hitachi Metals Machinery Inc | 熱間圧延設備及び熱間圧延方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101426593A (zh) | 2009-05-06 |
| CN103769436B (zh) | 2016-08-17 |
| CN103769436A (zh) | 2014-05-07 |
| JP4778832B2 (ja) | 2011-09-21 |
| JP2007307569A (ja) | 2007-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101224471A (zh) | 一种粗轧中间坯镰刀弯的控制方法 | |
| WO2007135802A1 (ja) | 先,後行金属板の幅揃え方法及び装置と連続圧延設備 | |
| JP5338139B2 (ja) | 熱間仕上圧延における蛇行防止方法、および、それを用いた熱延金属板の製造方法 | |
| JP4322060B2 (ja) | 連続帯鋼の熱間圧延設備 | |
| JP3596484B2 (ja) | 熱間圧延設備および熱間圧延方法 | |
| KR100805065B1 (ko) | 선,후행 금속판의 폭 방향 위치 조절방법 및 장치와연속압연설비 | |
| JP3546616B2 (ja) | 熱間圧延方法及び設備 | |
| JP2009142899A (ja) | 連続帯鋼の熱間圧延設備及び熱間圧延方法 | |
| WO2000078474A1 (en) | Hot rolling method and equipment | |
| JP3292608B2 (ja) | エンドレス熱延鋼帯の圧延切断方法 | |
| JP3503609B2 (ja) | エンドレス熱延鋼帯の圧延切断方法 | |
| JP3377924B2 (ja) | 鋼片の接合装置および接合方法 | |
| JP3036877B2 (ja) | 連続熱間薄板圧延設備および圧延材の先端曲り矯正装置 | |
| JP3334784B2 (ja) | 連続熱間圧延における鋼片の走間接合方法 | |
| JP2001269708A (ja) | 熱間圧延機のレベリング制御方法及び装置 | |
| JP2000061656A (ja) | ビレット接合方法 | |
| JP3503623B2 (ja) | エンドレス熱延鋼帯の接合点のトラッキング方法及び切断目標点のトラッキング方法 | |
| JPH08150407A (ja) | 連続熱間圧延方法 | |
| JP2002126805A (ja) | エンドレス熱延鋼帯の圧延切断方法 | |
| EP1132154A1 (en) | Method of hot-rolling metal pieces | |
| JPH07265909A (ja) | 熱間圧延における圧延材の接合装置 | |
| JP3503624B2 (ja) | エンドレス熱延鋼帯の圧延切断方法 | |
| JP3362076B2 (ja) | 鋼片の連続熱間圧延方法 | |
| JPH08117812A (ja) | 熱間圧延における鋼片の接合方法 | |
| JPH0899107A (ja) | 鋼片の連続熱間圧延方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07738623 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1880/MUMNP/2008 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 200780014569.1 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 07738623 Country of ref document: EP Kind code of ref document: A1 |