CN104178847A - Carbon fiber bundle expansion device - Google Patents
Carbon fiber bundle expansion device Download PDFInfo
- Publication number
- CN104178847A CN104178847A CN201410366783.5A CN201410366783A CN104178847A CN 104178847 A CN104178847 A CN 104178847A CN 201410366783 A CN201410366783 A CN 201410366783A CN 104178847 A CN104178847 A CN 104178847A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- fiber bundle
- carry
- over pinch
- pinch rolls
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 45
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 45
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001274660 Modulus Species 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a carbon fiber bundle expansion device. The carbon fiber bundle expansion device comprises a preheating area, a plurality of expansion areas and an arrangement area, wherein the preheating area and the arrangement area are distributed at two sides of the expansion area, convex rollers and concave rollers are distributed in the preheating area and the expansion area at intervals, a plurality of plain rollers are arranged in the arrangement area, heating mechanisms are arranged inside the convex rollers, the concave rollers and the plain rollers respectively, and a pulling roller set I and a pulling roller set II are arranged at the left side of the preheating area and the right side of the arrangement area respectively and are connected with motors respectively. The carbon fiber bundle expansion device has the beneficial effects that the carbon fiber bundle expansion device has a simple structure and convenience in use and is easy to realize; the carbon fiber bundle can be widened and thinned through continuous expansion of the convex rollers and continuous contraction of the concave rollers; the expanded carbon fiber bundle is wide and thin and is a uniform unidirectional fiber sheet, and the processing process of the carbon fiber bundle cannot cause atmospheric environment pollution.
Description
Technical field
The present invention relates to a kind of expanding unit of carbon fiber bundle.
Background technology
Fortifying fibre in fibre reinforced composites has a lot, as carbon fiber, glass fibre, aramid fiber and matrix resin etc., as the epoxy resin combination in matrix resin is developed, for such fortifying fibre, because being spread out in a direction, its fibre sheet material laminated thin arranges, and can use in multiple directions, so can obtain high strength and reliable composite material forming goods.In addition, it can be recycled and molding time short.Moulding is as mainly many in Aero-Space in the use of nylon 6 resin, polyetherimide resin, polyether-ether-ketone resin etc. with thermoplastic resin.
Recently, in the application of a kind of carbon fibre composite on aircraft and vehicle, arouse attention.Have various carbon fibers, comprise a kind of be called as common carbon fiber there is approximately 24 tons/millimeter of stretch moduluses
2with single fiber diameter about 7 μ for industry and sports goods, there is the carbon fiber of high strength, high-modulus.Also comprise approximately 30 tons/millimeter of another kind of stretch moduluses
2and the application for airborne vehicles such as aircrafts of above and about 7 μ-5 μ of single fiber diameter.
With the development of sheets of fibres and the raising of high viscosity resin prepreg performance, as thermoplastic resin, by certain expansion technique its fibre bundle is broadened and thin be necessary.Particularly, with the increase of number of fiber in single bundle fiber, it is very important that fiber is expanded to technique.In prior art, the expanding unit of fibre bundle can not meet carbon fiber bundle is expanded to wide and thin and uniform carbon fiber bundle monolithic.
Summary of the invention
The expanding unit that the object of this invention is to provide a kind of carbon fiber bundle, to overcome prior art above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
An expanding unit for carbon fiber bundle, comprises preheating zone, some expansion areas and Distribution Area, and described preheating zone and Distribution Area are distributed in the both sides of expansion area, is intervally distributed with protruding roller and recessed roller in described preheating zone and expansion area, is provided with some plain-barreled rolls in described Distribution Area; In described protruding roller, recessed roller and plain-barreled roll, be equipped with heating arrangements; The left side of described preheating zone and the right side of Distribution Area are respectively equipped with carry-over pinch rolls group one and carry-over pinch rolls group two, and described carry-over pinch rolls group one and carry-over pinch rolls group two are all connected with motor.
Further, described protruding roller, recessed roller and plain-barreled roll are distributed on same level line.
Further, the two ends of described protruding roller, recessed roller and plain-barreled roll are all fixed on framework.
Further, described carry-over pinch rolls group one and carry-over pinch rolls group two include 2 carry-over pinch rolls that distribute up and down, and the rolling surface of described 2 carry-over pinch rolls fits tightly.
Preferably, the lug boss of described protruding roller is at least 1, and the depressed part of described recessed roller is at least 1.
Beneficial effect of the present invention is: the expanding unit of described carbon fiber bundle is simple in structure, easy to use and be easy to realize, and carbon fiber bundle is constantly obtain widening on width in the expansion of excess convexity roller and the contraction process of recessed roller, until attenuation.Carbon fiber beamwidth after expansion and thin, is one-way fiber sheet uniformly, in the process of its processing simultaneously, can not pollute atmospheric environment.
Accompanying drawing explanation
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the side view of the carbon fiber expansion described in the embodiment of the present invention;
Fig. 2 is the top view of the carbon fiber expansion described in the embodiment of the present invention;
The structural representation of protruding roller when Fig. 3 is the single thread head feeding described in the embodiment of the present invention;
The structural representation of recessed roller when Fig. 4 is the single thread head feeding described in the embodiment of the present invention;
Fig. 5 is the structural representation of the protruding roller while simultaneously expanding of the many loose threads described in the embodiment of the present invention;
Fig. 6 is the structural representation of the recessed roller while simultaneously expanding of the many loose threads described in the embodiment of the present invention;
Fig. 7 is the schematic diagram after the carbon fiber bundle expansion described in the embodiment of the present invention.
In figure:
1, preheating zone; 2, expansion area; 3, Distribution Area; 4, protruding roller; 5, recessed roller; 6, plain-barreled roll; 7, carry-over pinch rolls group one; 8, carry-over pinch rolls group two; 9, framework; 10, lug boss; 11, depressed part.
The specific embodiment
As shown in Fig. 1-6, the expanding unit of a kind of carbon fiber bundle described in the embodiment of the present invention, comprise preheating zone 1, some expansion areas 2 and Distribution Area 3, described preheating zone 1 and Distribution Area 3 are distributed in the both sides of expansion area 2, in described preheating zone 1 and expansion area 2, be intervally distributed with protruding roller 4 and recessed roller 5, in described Distribution Area 3, be provided with some plain-barreled rolls 6; In described protruding roller 4, recessed roller 5 and plain-barreled roll 6, be equipped with heating arrangements; The right side of the left side of described preheating zone 1 and Distribution Area 3 is respectively equipped with carry-over pinch rolls group 1 and carry-over pinch rolls group 28, and described carry-over pinch rolls group 1 and carry-over pinch rolls group 28 are all connected with motor.Described protruding roller 4, recessed roller 5 and plain-barreled roll 6 distribute in the same horizontal line.The two ends of described protruding roller 4, recessed roller 5 and plain-barreled roll 6 are all fixed on framework 9.
Described carry-over pinch rolls group 1 and carry-over pinch rolls group 28 include 2 carry-over pinch rolls that distribute up and down, and the rolling surface of described 2 carry-over pinch rolls fits tightly.The lug boss 10 of described protruding roller 4 is at least 1, and the depressed part 11 of described recessed roller 5 is at least 1.As shown in Figure 3-4, in actual use procedure, if the depressed part 11 of the lug boss of protruding roller 4 10 and recessed roller 5 all can be made as to 1 during lean yarn feeding.As shown in Fig. 5-6, if during simultaneously feeding of multiple end yarn, the number of depressed part 11 in number that can the protruding roller of corresponding increase by 4 protrusions portions 10 and recessed roller 5.
During concrete use, as shown in Figure 1, carry-over pinch rolls group 1 is passed in one end of carbon fiber bundle, then after successively passing each protruding roller 4, recessed roller 5 and plain-barreled roll 6, carbon fiber bundle is passed to carry-over pinch rolls group 28, carry-over pinch rolls group 1 and traction are rolled group 28 under the drive of motor and then are driven advancing of carbon cellulose, carbon fiber bundle is constantly obtain widening on width in the expansion of excess convexity roller and the contraction process of recessed roller, until attenuation.As shown in Figure 7, the carbon fiber bundle after processing is wide and thin, uniformly one-way fiber sheet.
In practice conventionally by the THICKNESS CONTROL before carbon fiber bundle processing at 3-4 layer, be generally no more than 6 layers, in the time of the increase of the number of plies, increased the degree of difficulty of the large molecule organic fiber dipping of thermoplasticity.Thickness when described carbon fiber bundle is 3-4 layer is within the scope of 0.021 ~ 0.028mm, when the carbon fiber bundle of expansion 12k, 24k, 48k and 50k remains on 3-4 layer, its extension width is respectively: 20-25mm ± 0.5mm, 20-50 ± 0.5mm, 40-100mm ± 0.5 and 50-110mm simultaneously.
As shown in Figure 7, the number of establishing expansion area is 2, and the value range of the carbon fiber width of described carbon fiber bundle preheating zone is 1≤W1/W0 < 1.25mm; The width range value of described first carbon fiber bundle expansion area is 1.5≤W2/W0 < 3; The width range value of described second carbon fiber bundle expansion area is 3≤W3/W0 < 4, wherein W0 is the original width of carbon fiber preheating zone carbon fiber, and W1, W2 and W3 are respectively at carbon fiber bundle after processing in preheating zone and successively through the carbon fiber width of two expansion areas.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection scope of the present invention.
Claims (5)
1. the expanding unit of a carbon fiber bundle, it is characterized in that: comprise preheating zone (1), some expansion areas (2) and Distribution Area (3), described preheating zone (1) and Distribution Area (3) are distributed in the both sides of expansion area (2), in described preheating zone (1) and expansion area (2), be provided with protruding roller (4) and recessed roller (5), in described Distribution Area (3), be provided with some plain-barreled rolls (6); In described protruding roller (4), recessed roller (5) and plain-barreled roll (6), be equipped with heating arrangements; The right side of the left side of described preheating zone (1) and Distribution Area (3) is respectively equipped with carry-over pinch rolls group one (7) and carry-over pinch rolls group two (8), and described carry-over pinch rolls group one (7) and carry-over pinch rolls group two (8) are all connected with motor.
2. the expanding unit of carbon fiber bundle according to claim 1, is characterized in that: described protruding roller (4), recessed roller (5) and plain-barreled roll (6) distribute in the same horizontal line.
3. according to right, want the expanding unit of the carbon fiber bundle described in 2, it is characterized in that: the two ends of described protruding roller (4), recessed roller (5) and plain-barreled roll (6) are all fixed on framework (9).
4. the expanding unit of carbon fiber bundle according to claim 1, is characterized in that: described carry-over pinch rolls group one (7) and carry-over pinch rolls group two (8) include 2 carry-over pinch rolls that distribute up and down, and the rolling surface of described 2 carry-over pinch rolls fits tightly.
5. according to the expanding unit of the carbon fiber bundle described in claim 1-4 any one, it is characterized in that: the lug boss (10) of described protruding roller (4) is at least 1, the depressed part (11) of described recessed roller (5) is at least 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366783.5A CN104178847B (en) | 2014-07-29 | 2014-07-29 | A kind of expanding unit of carbon fiber bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366783.5A CN104178847B (en) | 2014-07-29 | 2014-07-29 | A kind of expanding unit of carbon fiber bundle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104178847A true CN104178847A (en) | 2014-12-03 |
| CN104178847B CN104178847B (en) | 2016-03-23 |
Family
ID=51960180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410366783.5A Active CN104178847B (en) | 2014-07-29 | 2014-07-29 | A kind of expanding unit of carbon fiber bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104178847B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155073A (en) * | 2015-10-16 | 2015-12-16 | 北京合力星新材料技术有限公司 | Carbon fiber expanding device |
| CN105177792A (en) * | 2015-10-16 | 2015-12-23 | 北京合力星新材料技术有限公司 | Carbon fiber spreading device |
| CN105865964A (en) * | 2016-06-25 | 2016-08-17 | 北京航空航天大学 | Carbon fiber fuzzing quantity testing device and carbon fiber fuzzing quantity testing method |
| CN106744008A (en) * | 2017-03-07 | 2017-05-31 | 天津昂林贸烽高新材料有限公司 | A kind of fiber merges expansion equipment |
| CN108035031A (en) * | 2018-01-05 | 2018-05-15 | 常州市新创智能科技有限公司 | A kind of hot type carbon fibre stretching device |
| CN110835793A (en) * | 2019-12-03 | 2020-02-25 | 蒋雨航 | Spreading device of sliver lap machine |
| CN111962308A (en) * | 2020-06-28 | 2020-11-20 | 朱爱民 | Chemical fiber cloth flame-retardant adhesive coating process |
| CN113862859A (en) * | 2021-12-02 | 2021-12-31 | 常州铭派纺织机械科技有限公司 | Carbon fiber yarn spreading device |
| WO2022147884A1 (en) * | 2021-01-11 | 2022-07-14 | 北京航空航天大学 | Real-time adjustment apparatus for broadening and thickening of impregnated fiber bundle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231300A (en) * | 1995-02-28 | 1996-09-10 | Showa Denko Kk | Device for producing carbon fiber by vapor-phase process |
| CN201581163U (en) * | 2009-12-24 | 2010-09-15 | 常州市润源经编机械有限公司 | Large tow carbon fiber expanding device |
| CN202157192U (en) * | 2011-07-11 | 2012-03-07 | 连云港迎雁新材料有限责任公司 | Carbon fiber preimpregnation material gum dipping production line flattening device |
| CN102439206A (en) * | 2009-05-25 | 2012-05-02 | 福井县 | Method for spreading fiber bundles, spread fiber sheet, and method for manufacturing a fiber-reinforced sheet |
| CN103757784A (en) * | 2014-01-22 | 2014-04-30 | 东华大学 | Device for spreading large-tow carbon fibers through combination of sound wave method and mechanical multi-roller method |
| CN103757783A (en) * | 2014-01-22 | 2014-04-30 | 东华大学 | Low-cost high-performance large-tow carbon fiber spreading device |
| CN203729003U (en) * | 2014-01-22 | 2014-07-23 | 东华大学 | Low-cost high-performance large tow carbon fiber spreading device |
| CN204509564U (en) * | 2015-03-08 | 2015-07-29 | 象山康丽针织厂 | With the sliver lap machines of expanding |
-
2014
- 2014-07-29 CN CN201410366783.5A patent/CN104178847B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231300A (en) * | 1995-02-28 | 1996-09-10 | Showa Denko Kk | Device for producing carbon fiber by vapor-phase process |
| CN102439206A (en) * | 2009-05-25 | 2012-05-02 | 福井县 | Method for spreading fiber bundles, spread fiber sheet, and method for manufacturing a fiber-reinforced sheet |
| CN201581163U (en) * | 2009-12-24 | 2010-09-15 | 常州市润源经编机械有限公司 | Large tow carbon fiber expanding device |
| CN202157192U (en) * | 2011-07-11 | 2012-03-07 | 连云港迎雁新材料有限责任公司 | Carbon fiber preimpregnation material gum dipping production line flattening device |
| CN103757784A (en) * | 2014-01-22 | 2014-04-30 | 东华大学 | Device for spreading large-tow carbon fibers through combination of sound wave method and mechanical multi-roller method |
| CN103757783A (en) * | 2014-01-22 | 2014-04-30 | 东华大学 | Low-cost high-performance large-tow carbon fiber spreading device |
| CN203729003U (en) * | 2014-01-22 | 2014-07-23 | 东华大学 | Low-cost high-performance large tow carbon fiber spreading device |
| CN204509564U (en) * | 2015-03-08 | 2015-07-29 | 象山康丽针织厂 | With the sliver lap machines of expanding |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177792A (en) * | 2015-10-16 | 2015-12-23 | 北京合力星新材料技术有限公司 | Carbon fiber spreading device |
| CN105155073A (en) * | 2015-10-16 | 2015-12-16 | 北京合力星新材料技术有限公司 | Carbon fiber expanding device |
| CN105155073B (en) * | 2015-10-16 | 2017-09-26 | 北京合力星新材料技术有限公司 | Carbon fiber expanding unit |
| CN105865964B (en) * | 2016-06-25 | 2018-12-11 | 北京航空航天大学 | Carbon fiber fluffing amount test device and measurement method |
| CN105865964A (en) * | 2016-06-25 | 2016-08-17 | 北京航空航天大学 | Carbon fiber fuzzing quantity testing device and carbon fiber fuzzing quantity testing method |
| CN106744008A (en) * | 2017-03-07 | 2017-05-31 | 天津昂林贸烽高新材料有限公司 | A kind of fiber merges expansion equipment |
| CN106744008B (en) * | 2017-03-07 | 2023-09-15 | 天津昂林贸烽高新材料有限公司 | Fiber merging and expanding equipment |
| CN108035031A (en) * | 2018-01-05 | 2018-05-15 | 常州市新创智能科技有限公司 | A kind of hot type carbon fibre stretching device |
| CN108035031B (en) * | 2018-01-05 | 2023-08-22 | 常州市新创智能科技有限公司 | Heating type carbon fiber spreading device |
| CN110835793A (en) * | 2019-12-03 | 2020-02-25 | 蒋雨航 | Spreading device of sliver lap machine |
| CN110835793B (en) * | 2019-12-03 | 2021-01-26 | 滕州永喜无纺布有限公司 | Spreading device of sliver lap machine |
| CN111962308A (en) * | 2020-06-28 | 2020-11-20 | 朱爱民 | Chemical fiber cloth flame-retardant adhesive coating process |
| WO2022147884A1 (en) * | 2021-01-11 | 2022-07-14 | 北京航空航天大学 | Real-time adjustment apparatus for broadening and thickening of impregnated fiber bundle |
| CN113862859A (en) * | 2021-12-02 | 2021-12-31 | 常州铭派纺织机械科技有限公司 | Carbon fiber yarn spreading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104178847B (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104178847A (en) | Carbon fiber bundle expansion device | |
| US10138579B2 (en) | Fiber tow treatment apparatus and system | |
| US10688738B2 (en) | Wind turbine blades | |
| EP2314445B1 (en) | A method for manufacturing a composite body and a composite body manufacturing arrangement | |
| WO2016006543A1 (en) | Pseudo-isotropic reinforced sheet material and method for producing same | |
| KR101776383B1 (en) | Manufacturing apparatus for composite reinforcement structure and manufacturing method for the same | |
| JP2009062474A (en) | Molding material, fiber-reinforced plastic, and manufacturing method for them | |
| CA2658724A1 (en) | Method for production of a plurality of fiber-composite structural elements | |
| US20150345050A1 (en) | Vibrational spreader bar for spreading unidirectional yarns | |
| Taketa et al. | Enhancement of strength and uniformity in unidirectionally arrayed chopped strands with angled slits | |
| JP2018080347A (en) | Fiber-reinforced resin material molded body, method for producing fiber-reinforced resin material molded body and method for producing fiber-reinforced resin material | |
| CN202115036U (en) | Multi-axial yarn bundle reinforced thermoplastic preconsolidation sheet | |
| CN102582095A (en) | Dry process for forming arc-shaped continuous fiber composite board | |
| CA2851497C (en) | Composite textiles including spread filaments | |
| CN103451853A (en) | Fiber-reinforced spandex composite material and preparation method and application thereof | |
| CN1730764A (en) | Method for preparing continuous fiber reinforced thermoplastic plastic felt premix using needle punching | |
| CN102296805A (en) | Recyclable composite material building template and manufacturing method thereof | |
| CN204211929U (en) | A kind of multi-angle woven fabric device | |
| CN102785439A (en) | Novel intermediate through yarn reinforced fiber composite material and its production method | |
| CN113021936A (en) | Continuous molding device and molding method for thermoplastic composite material sandwich structure | |
| CN110877428B (en) | Device and method for preparing high-performance prepreg yarns | |
| US4568593A (en) | Composite corrugated panel with transverse fibers | |
| TW200925075A (en) | A conveyor belt and method for producing the same | |
| US4504343A (en) | Method of making composite member with transverse fibers | |
| CN102602017A (en) | Preservative isolation layer capable of being circularly used for manufacturing rubber tires |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Qingya Inventor before: Yu Xingjie |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160121 Address after: 100044, No. 505, No. 4, building 9, three Li River, Beijing, Haidian District Applicant after: Wang Qingya Address before: 605, room 66, 264200 Qingzhou street, torch hi tech Industrial Development Zone, Weihai, Shandong Applicant before: Yu Xingjie |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190416 Address after: 300308 Tianjin Dongli Airport Economic Zone, 1 and 2 floors of No. 1 Workshop Area B of No. 1 Aviation Industry Park, No. 225 Jingerlu No. 2 Civil Aviation Science and Technology Industrialization Base Patentee after: TIANJIN ONLYTOP HI-TECH MATERIAL CO., LTD. Address before: 100044 No. 505, 4th Floor, New C, 9th Hospital, Sanli River, Haidian District, Beijing Patentee before: Wang Qingya |
|
| TR01 | Transfer of patent right |