CN2686748Y - High rigidity octa-roll plate-strip rolling mill - Google Patents
High rigidity octa-roll plate-strip rolling mill Download PDFInfo
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- CN2686748Y CN2686748Y CN 200420010466 CN200420010466U CN2686748Y CN 2686748 Y CN2686748 Y CN 2686748Y CN 200420010466 CN200420010466 CN 200420010466 CN 200420010466 U CN200420010466 U CN 200420010466U CN 2686748 Y CN2686748 Y CN 2686748Y
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- 238000005096 rolling process Methods 0.000 title claims abstract description 17
- 230000000694 effects Effects 0.000 claims description 11
- 230000000994 depressogenic effect Effects 0.000 claims description 7
- 230000000881 depressing effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 abstract 6
- 230000001105 regulatory effect Effects 0.000 abstract 6
- 238000003801 milling Methods 0.000 description 39
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005097 cold rolling Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a high rigidity octa-roll plate-strip rolling mill, comprising upper and lower work rolls, upper and lower drive rolls, two backing roll saddles, upper and lower holding-down devices, a lower adjusting device and a housing window. The backing roll saddles are split and the number of the upper holding-down device is not less than three. The upper and lower work rolls are provided with an apparatus and a slide seat for regulating and controlling work roll offset. The upper work roll, the upper drive roll, two upper backing rolls and the upper backing roll saddle form an upper roll system. The lower work roll, the lower drive rolls, two lower backing rolls and the lower backing roll saddle form a lower roll system. The upper work roll, the lower work roll, two work roll bearings and bearing seats, the work roll offset regulating and controlling apparatus and the work roll offset regulating and controlling slide seat form a work roll offset regulating and controlling system. The upper roll system is under function of the holding-down device and the lower roll system is under function of the lower adjusting device and the two rolls can move up and down in the housing window. The two work rolls can move back and forth in the work roll offset regulating and controlling slide seat under the function of the work roll offset regulating and controlling apparatus.
Description
Technical field
The utility model belongs to metal rolled technical field, particularly relates to high rigidity eight roller band mills.Be mainly used in the rolling of mild steel, low-alloy steel, structural carbon steel, stainless steel and various non-ferrous metal plate bands, rolling especially for cold rolled metal strip material.
Background technology
At present, band mill domestic, that use in the world mainly contains duo mill, four-high mill, six-high cluster mill, inclined to one side eight rollers (MKW) milling train, twelve high mill, 20 rollers and even 26 rollers, 30 rollers and 30 six-high cluster mills etc.Usually with the roll number more than four milling train multi-roll mill.Except that six roller HC milling trains, the roller of other multi-roll mill system all adopts the tower arrangement form.Technology is depressed at the existing basically two ends, roller footpath of still adopting of these milling trains, is the form of 2 simply supported beams.Because such roller system of rolling mill stressed is mainly the rolled piece that is positioned at roller system middle part and acts on the uniform resistance of deformation of roller system and milling train screw-down vertically upward and concentrate and act on the draught pressure that roller is roller footpath, two ends vertically downward, roll will produce flexural deformation, and its flexural deformation degree is that amount of deflection increases along with the raising of increase of milled sheet bandwidth or deformation of rolled wire drag.In the past,, take to increase the method for roller diameter or backing roll diameter in order to reduce the flexural deformation of such roller system of rolling mill more.On the other hand, four-high mill, six roller HC milling trains, because working roll is subjected to the effect of backing roll horizontal component and forward and backward Tension Difference, working roll also can produce flexural deformation in the horizontal direction.Must consider its flexural deformation in the horizontal direction when therefore, determining work roll diameter.In general, the work roll diameter of four-high mill, six roller HC milling trains is all bigger, so its draught pressure is also bigger, the minimum rolling thickness that milling train can roll is thicker.However, along with the variation of milled sheet bandwidth and the variation of draught pressure, the flexural deformation existence as the same of roller system.Advantage such as that though such milling train has is simple in structure, can realize high-speed rolling, equipment manufacturing cost is low, but influenced by it, the transverse gage of the strip section product of producing is uneven inevitable, and its thickness difference is bigger, therefore, use such milling train to be difficult to produce broad, the thin and good high accuracy product of plate shape.
Inclined to one side eight rollers (MKW) milling train is a kind of non-traditional formula cold-rolling mill of developing on the basis of four-high mill, can see the arrangement form of its roll from the way.Because the upper and lower roll of this milling train system has all increased the backing roll that working roll is mainly played the lateral support effect, compare with six roller HC milling trains with four-high mill, the stress of working roll by improve, the horizontal curvature degree of working roll reduces, therefore can adopt less work roll diameter, thereby make that the thickness deviation of rolling gross pressure reduction, product thickness attenuate, product is less.But, MKW mill, the structure of particularly two MKW mills and operate all more complicated, and its traditional two ends, roller footpath that are still of adopting depress, so the flexural deformation of this roller system of rolling mill is inevitable, the raising of product precision is restricted.
In order to produce the high accuracy cold rolling strap thin, that plate shape is good, six roller HC milling trains, ten two-roll cold rolling mills, Sendzimir mill, XGK cold-rolling mill or the more multi-roll mill of roll develop in succession, and be wherein the most representative with sendzimir mill again.Such milling train is effective to the strip material that rolling thickness is thin, plate shape is good, precision is higher.The present the thinnest 0.0008mm that reached of band (pool) material that produces with such milling train.And its gauge precision generally is significantly improved than duo mill, four-high mill, six roller HC milling trains etc.The form of such milling train is compared with duo mill, four-high mill, six roller HC milling trains, has all increased upper and lower outer backing roll saddle, and outer backing roll adopts back lining bearing mostly, and the support of outer backing roll is the multiple spot beam type and is installed on the upper and lower backing roll saddle.Upper and lower backing roll saddle is monoblock type, and backing roll saddle length is determined with the width and the number of the back lining bearing that uses.
Aspect the mode of depressing of multi-roll mill, not as if the icepro multi-roll mill, when the XGK multi-roll mill is produced, although the metal deformation drag can be passed through working roll---live-roller---backing roll, be the radial backing roll saddle that passes to more equably, but the power that saddle bore but is to pass between the entablature of mill housing by two screw-downs, and depressing position is positioned on the roll roll surface.For Sen Dewei four-column type mill, although draught pressure can pass to mill housing comparatively equably,, because its mill housing is open type, it is depressed is that four columns by the memorial archway two ends are that hydraulic cylinder is realized.Roller be stressed aspect since the backing roll saddle directly passes to draught pressure or second sheet memorial archway on, be equivalent to increase the thickness of backing roll saddle, it is depressed mode and is not broken away from 2 patterns of depressing yet.But the rigidity of the whole roller of this milling train system will be higher than above-mentioned two kinds of milling trains.
Sendzimir mill and other multi-roll mill are all different aspect the force way of version and roller system, this milling train is not established the backing roll saddle, draught pressure is through working roll---ground floor backing roll---second layer backing roll, second layer supporting stick both sides are live-roller---backing roll is that back lining bearing is directly passed to the whole frame with eight plum blossom holes.It depresses mode is that the eccentric hoop of two row's back lining bearings by the position that mediates is realized.The version of its every row's back lining bearing (outer backing roll) has adopted the multiple spot girder structure.Roller be stressed aspect, every group of back lining bearing all is equivalent to a screwdown gear, belongs to a kind of that multiple spot depresses.Sendzimir mill is the highest milling train of present rigidity.But the subject matter that this milling train exists at present has: the one, and the milling train opening degree is very little, and is narrower to the scope of application of blank; The 2nd, the screw-down of milling train is very complicated; The 3rd, frame must be an integrated stand.So the present cost of sendzimir mill is very expensive, and will be along with the increase of rolled products width, will to whole frame and back lining bearing be depressed and high, the general machined means that require of Adjustment System can't meet the demands at all.
In sum, common duo mill, four-high mill, six roller HC milling train and MKW mills all still adopt the both ends roller directly to depress mode at present.Although in order to improve roller is rigidity, reduce the flexural deformation of roll, adopt the mode that constantly increases roll or backing roll diameter,, roller ties up to its stress influence down, working roll will produce flexural deformation, and its flexural deformation degree will change with the variation of rolled piece width and deformation of rolled wire drag, and is therefore inevitable along the thickness difference of rolled piece width.Multi-roll mill for the layout of the tower except that sendzimir mill, though increased backing roll saddle and outer backing roll is alternative with back lining bearing, and support by the multiple spot beam type, but, the draught pressure that roller system is born remains by the backing roll saddle, pass to mill housing by two screwdown gears with the form of concentrfated load, its essence is still at 2 and depresses.So such roller system of rolling mill stressed still is mainly the rolled piece that is positioned at roller system middle part and acts on the uniform resistance of deformation of roller system and milling train screw-down vertically upward and concentrate that to act on roller system vertically downward be two draught pressures on the backing roll saddle.Influenced by it, the roller system of multi-roll mill also will produce flexural deformation, its flexural deformation degree is that amount of deflection also can increase along with the raising of increase of milled sheet bandwidth or deformation of rolled wire drag, and only its amount of deflection is more less than common duo mill, four-high mill, six roller HC milling trains and MKW mill.On the other hand, because the support saddle of these multi-roll mills all adopts overall structure, its requirement on machining accuracy is higher, and difficulty of processing is very big, and the manufacturing cost of equipment is higher.In addition, because the objective reality of component processing sum of errors alignment errors such as backing roll saddle, back lining bearing, the unbalance stress of each back lining bearing is inevitable, when pressure that each back lining bearing bore is big, will obviously reduce its service life, increase the Rolling Production cost.The multi roll strip-mill strip replaces outer backing roll with back lining bearing at present mostly, restricted by it, and its mill speed is lower than 600m/min more.
The utility model content
For overcoming deficiency of the prior art, the purpose of this utility model is to provide a kind of high rigidity eight roller band mills.
For finishing above-mentioned utility model purpose, the technical scheme that the utility model is taked is: a kind of high rigidity eight roller band mills, by upper working rolls and lower working rolls, last lower driving roller, backing roll about in the of two, backing roll saddle up and down, last screwdown gear, following adjusting device and mill housing are formed, it is characterized in that, the supporting stick saddle is split type, screwdown gear quantity is no less than three, upper working rolls and lower working rolls has working roll side-play amount regulation device and slide, top working roll, last live-roller, two upper support rollers, upper support roller saddle is formed top roll system, bottom working roll, lower driving roller, two lower support rollers, lower support roller saddle is formed lower roll system, top working roll, bottom working roll and two workroll bearings and bearing block, working roll side-play amount regulation device, working roll side-play amount regulation device slide is formed working roll side-play amount regulator control system, top roll ties up under the effect of screwdown gear and can move up and down in memorial archway, realize that the roll gap adjustment is to reach the control product thickness, lower roll ties up to down under the effect of adjusting device and also can move up and down in memorial archway, the realization height of rolling line is adjusted, double-working is under the effect of working roll side-play amount regulation device, before can be in working roll side-play amount regulation device slide, move the back, realizes the adjustment of working roll side-play amount.
Described split type backing roll saddle is provided with the saddle bascule and upper and lower roll is a bascule.
Described depress or pressuring upper device is that hydraulic pressure is depressed mode, and be positioned at the scope of producing maximum plate width.
Described depress or pressuring upper device is the electronic mode of depressing, and be positioned at the scope of producing maximum plate width.
The horizontal adjusting of described working roll side-play amount regulation device can adopt the hydraulic pressure adjustment, also can adopt the adjustment mode of pneumatic adjustment or other form.
Advantage of the present utility model and beneficial effect are: the utility model is the change of composition form by roller, makes it easy to adopt JR strip material deformed area multiple spot to depress technology and split saddle gear.After adopting JR strip material deformed area multiple spot to depress technology and split saddle gear, make the stress of roller system (working roll) vertical direction be tending towards rationally, with minimizing or avoid the flexural deformation of working roll in vertical direction.Horizontal adjusting by working roll side-play amount size, reach and adjust and the horizontal component of control working roll, reduce or avoid working roll flexural deformation in the horizontal direction, and then reduce work roll diameter, reduce draught pressure, so that produce thin thickness, the gauge deviation is little, plate shape is good product.The utility model production all can be adopted the plain cylindrical form roll with roll such as working roll, live-roller and backing roll, so can simplify the design and the difficulty of processing of roll shape, does not need the very expensive roll special purpose grinder of configuration rates, reduces project investment etc.The utility model can be used for the transformation to existing duo mill, four-high mill, inclined to one side eight rollers (MKW) milling train and six roller HC milling trains, also can be used for manufacturing and designing new mkw mill.Not only can be used for cold rolled sheet production, and also can be used for hot rolled strip production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, rolling-mill housing of the present utility model adopts whole high rigidity frame, also can adopt the four-piece type combined rack on the strip-mill strip of broad.High rigidity eight rod milling trains by top working roll 1, go up live-roller 2, two upper support rollers 3, upper support roller saddle 4, bottom working roll 5, lower driving roller 6, two lower support rollers 7, lower support roller saddle 8, working roll side-play amount regulation device 9, working roll side-play amount regulation device slide 10, screwdown gears 11, adjusting device 12 and memorial archway 13 etc. are formed down.Employing of backing roll saddle is split type up and down for it, number is determined with screw-down, upper working rolls and lower working rolls has working roll side-play amount regulation device and slide, top working roll 1, last live-roller 2, two upper support rollers 3, upper support roller saddle 4 is formed top roll system, bottom working roll 5, lower driving roller 6, two lower support rollers 7, lower support roller saddle 8 is formed lower roll system, top working roll 1, bottom working roll 5 and two workroll bearings and bearing block and working roll side-play amount regulation device 9, working roll side-play amount regulation device slide 10 is formed working roll side-play amount regulator control system, top roll ties up under the effect of screwdown gear 11 and can move up and down in memorial archway 13, realize that the roll gap adjustment is to reach the control product thickness, lower roll ties up to down under the effect of adjusting device 12 and also can move up and down in memorial archway 13, the realization height of rolling line is adjusted, double-working is under the effect of working roll side-play amount regulation device 9, before can be in working roll side-play amount regulation device slide 10, move the back, with respect to live-roller, realize the adjustment of working roll side-play amount.Following adjusting device 12 can adopt hydraulic pressure to push to formula also can adopt Wedge type.
The number of following adjusting device 12 equates with the screwdown gear number that in principle this device also can be realized the adjustment of each backing roll draught pressure that saddle bears except that can being rolled the line Height Adjustment.
Each screwdown gear, each time adjusting device of the utility model embodiment all can be realized independent adjustment, also can adjust simultaneously.The utility model embodiment also is provided with pressure sensor, roll gap meter and thickness measurement equipment etc.By high-precision pressure, thickness and the gap values between rollers that records,, also can take manually to intervene, to produce high-precision strip product by the automatic control of automatic control system realization product thickness.The utility model embodiment also is provided with split type backing roll saddle bascule and upper and lower roll is a bascule etc.
Roller of the present utility model is that composition form and existing other milling train are all inequality, and its working roll side-play amount regulation device also is that other milling train never has.
Definite process of the utility model screwdown gear quantity is: at first just intend the maximum plate width produced according to milling train, determine the width and the number of back lining bearing model primary election back lining bearing according to draught pressure, after the width of back lining bearing and number are determined, just can determine the maximum rolling width of milling train and the quantity of definite screwdown gear at last.The quantity of screw-down is generally established more than three and three and is advisable.What the utility model adopted is that multiple spot is depressed technology.Depress or the mode of pressing adopts hydraulic pressure to depress, also can adopt electronic depressing.Screw-down all is positioned at the scope of producing maximum plate width.Promptly adopt the deformed area to depress.
Backing roll saddle of the present utility model comprises upper saddle seat and following saddle, all adopts and divides body structure, and its quantity is identical with the screw-down number.Working roll side-play amount regulation device of the present utility model adopts monolithic construction, also can adopt split-type structural.The horizontal adjusting of the utility model working roll side-play amount regulation device can adopt the hydraulic pressure adjustment, also can adopt the adjustment mode of pneumatic adjustment or other form.
Main purpose of the present utility model is: the one, and be the change of composition form by roller, make it easy to adopt JR strip material deformed area multiple spot to depress technology and split saddle gear.After adopting JR strip material deformed area multiple spot to depress technology and split saddle gear, make that roller is that the stress of vertical direction is tending towards rationally, with minimizing or avoid the flexural deformation of working roll in vertical direction; The 2nd, by the horizontal adjusting of working roll side-play amount size, reach the horizontal component of adjusting and controlling working roll, reduce or avoid working roll flexural deformation in the horizontal direction, and then reduce work roll diameter, reduce draught pressure, so that produce thin thickness, the gauge deviation is little, plate shape is good product.
After the utility model is used for milling train, its production all can be adopted the plain cylindrical form roll with roll such as working roll, live-roller and backing roll, so can simplify the design and the difficulty of processing of roll shape, do not need the very expensive roll special purpose grinder of configuration rates, reduce project investment etc.
The utility model can be used for the transformation to original duo mill with good conditionsi, four-high mill, inclined to one side eight rollers (MKW) milling train and six roller HC milling trains, also can be used for manufacturing and designing new mkw mill.Not only can be used for cold rolled sheet production, and also can be used for hot rolled strip production.
It should be noted last that: above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the utility model, for any modification or partial replacement that does not break away from spirit and scope of the present utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. one kind high rigidity eight roller band mills, by upper working rolls and lower working rolls, last lower driving roller, backing roll about in the of two, backing roll saddle up and down, screwdown gear, following adjusting device and mill housing are formed, it is characterized in that: the supporting stick saddle is split type, screwdown gear quantity is no less than three, upper working rolls and lower working rolls has working roll side-play amount regulation device and slide, top working roll, last live-roller, two upper support rollers, upper support roller saddle is formed top roll system, bottom working roll, lower driving roller, two lower support rollers, lower support roller saddle is formed lower roll system, top working roll, bottom working roll and two workroll bearings and bearing block, working roll side-play amount regulation device, working roll side-play amount regulation device slide is formed working roll side-play amount regulator control system, top roll ties up under the effect of screwdown gear and can move up and down in memorial archway, realize that the roll gap adjustment is to reach the control product thickness, lower roll ties up to down under the effect of adjusting device and also can move up and down in memorial archway, the realization height of rolling line is adjusted, double-working is under the effect of working roll side-play amount regulation device, before can be in working roll side-play amount regulation device slide, move the back, realizes the adjustment of working roll side-play amount.
2. high rigidity eight roller band mills according to claim 1 is characterized in that: described split type backing roll saddle is provided with the saddle bascule and upper and lower roll is a bascule.
3. high rigidity eight roller band mills according to claim 1 is characterized in that: described depress or pressuring upper device is that hydraulic pressure is depressed mode, and be positioned at the scope of producing maximum plate width.
4. high rigidity eight roller band mills according to claim 1 is characterized in that: described depress or pressuring upper device is the electronic mode of depressing, and be positioned at the scope of producing maximum plate width.
5. high rigidity eight roller band mills according to claim 1, it is characterized in that: the horizontal adjusting of described working roll side-play amount regulation device can adopt the hydraulic pressure adjustment, also can adopt the adjustment mode of pneumatic adjustment or other form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010466 CN2686748Y (en) | 2004-03-27 | 2004-03-27 | High rigidity octa-roll plate-strip rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010466 CN2686748Y (en) | 2004-03-27 | 2004-03-27 | High rigidity octa-roll plate-strip rolling mill |
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| CN2686748Y true CN2686748Y (en) | 2005-03-23 |
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| CN 200420010466 Ceased CN2686748Y (en) | 2004-03-27 | 2004-03-27 | High rigidity octa-roll plate-strip rolling mill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419553A (en) * | 2010-09-28 | 2012-04-18 | 华东理工大学 | Hydraulic servo system digital model of cold continuous rolling temper mill and fault indicating method |
| CN104438318A (en) * | 2013-09-16 | 2015-03-25 | 钱钢 | Multi-roller exchangeable cold rolling mill |
| CN109174973A (en) * | 2018-09-25 | 2019-01-11 | 揭阳市精腾不锈钢材料有限公司 | Directly depress formula mill |
| CN113828635A (en) * | 2021-10-09 | 2021-12-24 | 燕山大学 | Ten-high mill with horizontal frame |
-
2004
- 2004-03-27 CN CN 200420010466 patent/CN2686748Y/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419553A (en) * | 2010-09-28 | 2012-04-18 | 华东理工大学 | Hydraulic servo system digital model of cold continuous rolling temper mill and fault indicating method |
| CN104438318A (en) * | 2013-09-16 | 2015-03-25 | 钱钢 | Multi-roller exchangeable cold rolling mill |
| CN104438318B (en) * | 2013-09-16 | 2016-04-27 | 钱钢 | The interchangeable cold-rolling mill of a kind of multiple roll |
| CN109174973A (en) * | 2018-09-25 | 2019-01-11 | 揭阳市精腾不锈钢材料有限公司 | Directly depress formula mill |
| CN113828635A (en) * | 2021-10-09 | 2021-12-24 | 燕山大学 | Ten-high mill with horizontal frame |
| CN113828635B (en) * | 2021-10-09 | 2022-07-19 | 燕山大学 | Ten-high mill with horizontal frame |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU XINHUA HEAVY MACHINE CO., LTD. Free format text: FORMER NAME OR ADDRESS: JINGRUI METALLURGICAL MACHINERY MANUFACTURING CO., LTD., ZHENGZHOU |
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| CP03 | Change of name, title or address |
Address after: 451450 No. 36, Baisha Town Industrial Zone, Zhongmu County, Henan Patentee after: Zhengzhou Xinhua Heavy Machinery Co.,Ltd. Address before: 450009 No. 20 East navigation road, Henan, Zhengzhou Patentee before: JINGRUI METALLURG MACHINERY MF |
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| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20071225 Decision number of declaring invalidation: 10914 |
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| CU03 | Publication of corrected utility model |
Correction item: Transactional announcement Correct: 2004200104661 of the decision number is 10913, to maintain patent rights should not be announced False: 2004200104661 of the decision number is 10914, all invalid Number: 02 Page: 895 Volume: 25 |
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| ERR | Gazette correction |
Free format text: CORRECT: SERVICE BULLETIN; FROM: DECISION NUMBER OF 2004200104661 IS 10914, ALL INVALIDATION . TO: DECISION NUMBER OF 2004200104661 IS 10913, MAINTENANCE OF A PATENT WITHOUT ANNOUNCEMENT |