CN204530330U - A kind of sleeper - Google Patents
A kind of sleeper Download PDFInfo
- Publication number
- CN204530330U CN204530330U CN201520137142.2U CN201520137142U CN204530330U CN 204530330 U CN204530330 U CN 204530330U CN 201520137142 U CN201520137142 U CN 201520137142U CN 204530330 U CN204530330 U CN 204530330U
- Authority
- CN
- China
- Prior art keywords
- sleeper
- fiber
- section bar
- reinforced resin
- resin matrix
- 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.)
- Expired - Fee Related
Links
- 241001669679 Eleotris Species 0.000 title claims abstract description 107
- 239000000463 material Substances 0.000 claims abstract description 71
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 239000011159 matrix material Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000002436 steel type Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 230000032683 aging Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 description 27
- 229920000647 polyepoxide Polymers 0.000 description 27
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 8
- 238000005266 casting Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 241000425571 Trepanes Species 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model relates to a kind of sleeper, comprise sleeper body, described sleeper body material is fiber-reinforced resin matrix compound material, the pillow of described sleeper body is made up of fiber-reinforced resin matrix compound material section bar and expanded material, after the pillow fiber-reinforced resin matrix compound material section bar of sleeper body and expanded material bonding form one, expanded material exceeds the vertical file 0.5-2.5mm of the fiber-reinforced resin matrix compound material section bar of pillow in the vertical direction, in the horizontal direction the short 3-8mm of bolt guiding shelves of the monolateral fiber-reinforced resin matrix compound material section bar than pillow of expanded material.The utility model has that high-strength light, supporting capacity are high, indeformable, nonhygroscopic, volume stability, resistance to chemical attack, ageing-resistant, damping property good, non-conductive, structure simple, in-site installation advantage easily.
Description
Technical field
The utility model relates to a kind of sleeper for railway, track traffic.
Background technology
Sleeper is indispensable material in present railway traffic transport field, and its effect is connected on sleeper by rail connector by rail, keeps the geometry such as gauge, horizontal direction between two strands or multiply rail by sleeper.And being distributed on sleeper basis of the various load equalizations that rail is born.Therefore sleeper must have the effects such as high-strength light, weatherability and vibration damping.
Current existing sleeper has: wooden sleeper, reinforced concrete sleeper, steel sleeper and the solid sleeper of composite material, but they also exist some problems.
Although wooden sleeper good springiness, lightweight; make simple; good insulation preformance; but the forest reserves are deficient now; along with the continuous enhancing of people's environmental consciousness; forest timber is protected, and timber price is also rising steadily, and timber is apt to rot, without the performances such as insect protected, waterproof, fire prevention, easily atmospheric crack.For making timber be made into sleeper, also chemical treatment must be carried out to timber, to reach anticorrosion, the performance of insect protected, but the chemical substance contaminated environment of the wood preservation used, insect protected, also human body is damaged.The hardness of timber own is not high, and weatherability is poor, uses by the impact of natural environment and climate in the open under condition, and make sleeper easily aging, rotten and cracking etc., sleeper anticorrosive coat in the process used is once destroy, and this aging rotten phenomenon can obviously aggravation.In the impact of long-term train load with under rolling, easily cause sleeper mechanical wear, reduction of service life, and cause elasticity inconsistent.With the passing of time road nail on sleeper can relax because using, and holds nail ability and declines, cause traffic safety hidden danger.Meanwhile, because the intensity of timber own is not high, when supporting installation component, needing to arrange that intensive sleeper just can reach requirement, thus adding construction volume, too increasing use cost.
Although the feature of reinforced concrete sleeper long service life, good stability, but because its stiffness is large, poor flexibility causes effectiveness in vibration suppression also poor, thus increases noise, train body vibration is severe, and easily there is the phenomenon of cracking in use for some time, affect safety of railway traffic; Reinforced concrete sleeper is too heavy in addition, adds carrying difficulty, makes its laying, maintenance and transport all very inconvenient.And easily occur crack, unrepairable uses, and compares waste.
In addition the insulating properties due to concrete sleeper and steel sleeper self is poor, and therefore steel concrete and steel sleeper in use also need to carry out secondary insulating, and particularly in electrified circuit, insulating properties requires higher.In addition, a large amount of CO2 can be discharged preparing in raw material cement and reinforcing bar process, it is reported, prepare 10 times and 200 times that the CO2 amount of discharging in cement and reinforcing bar process is respectively wooden sleeper, cause environment pollution, do not meet the requirement of environmental protection, low-carbon (LC).
Although steel sleeper firm and durable, cost is high, self is heavy, not easily moves, and elasticity is little.Can not be widely used.The noise occurring to rub after laying and between train is very large.
In addition, composite material solid core sleeper is manufactured by high density expanded material, its light weight, but interior tissue is soft, and intensity does not reach the requirement required for light pillow.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, provides that a kind of high-strength light, supporting capacity are high, indeformable, nonhygroscopic, volume stability, resistance to chemical attack, ageing-resistant, damping property good, non-conductive, structure simple, in-site installation tie easily.
The purpose of this utility model is achieved through the following technical solutions: a kind of sleeper, comprises sleeper body, and described sleeper body material is fiber-reinforced resin matrix compound material, and the pillow of described sleeper body is made up of fiber-reinforced resin matrix compound material section bar and expanded material, described sleeper body is rectangle tubular, the thickness x of two relative barrels of four barrels of described rectangle tubular is 6-20mm, the thickness y of another two barrels of four walls of described rectangle tubular is 6-20mm, the fiber-reinforced resin matrix compound material section bar of described pillow is T-steel fiber-reinforced resin matrix compound material section bar, cross-shaped steel fiber-reinforced resin matrix compound material section bar, channel steel type fiber-reinforced resin matrix compound material section bar, king's font fiber-reinforced resin matrix compound material section bar or H fiber type strengthen resin-base composite material section bar, described expanded material is phenol formaldehyde foam, polyurethane foam, polyvinyl chloride foam, polystyrene foam, regenerated plastics or regenerated plastics and wood chip mixture.
The fiber-reinforced resin matrix compound material section bar of described pillow is first independent to be produced by pultrude process, after the fiber-reinforced resin matrix compound material section bar of pillow is produced in pultrusion, by each for the fiber-reinforced resin matrix compound material section bar of its pillow surperficial sand milling, then epoxy resin is used to be bonded by expanded material, expanded material is made to exceed vertical file 0.5-2.5mm(note of the fiber-reinforced resin matrix compound material section bar of pillow in the vertical direction after being bonded into one: except king's font composite material), short 3-the 8mm of bolt guiding shelves of the monolateral fiber-reinforced resin matrix compound material section bar than pillow of expanded material in the horizontal direction, then sleeper body and pillow are composited by pultrude process simultaneously, during composite molding, the bolt of the fiber-reinforced resin matrix compound material section bar of pillow guiding shelves are made to be embedded among sleeper body, vertical file is that sleeper adds the prime time, have sleeper inner support booster action, the intensity so just can born according to sleeper and the quantity of vertical file, design the wall thickness that sleeper is different, crosspiece is bolt guiding shelves, is the verticality in order to ensure to install back nut cover.
A kind of method of mounting nuts cover of tie, comprise the following steps: first bore the bolt hole that matches with bolt downwards until sleeper body soffit from the upper surface of sleeper body, the nut trepan then matched from the processing of sleeper body soffit and nut sleeve profile is to the baseplane of sleeper body upper surface; Then nut sleeve is coated epoxy resin glue, the nut sleeve scribbling epoxy resin glue is embedded in sleeper from sleeper body soffit, to make in its nut sleeve plane to the baseplane of sleeper body upper surface, make the baseplane of the upper surface of sleeper body play position-limiting action to nut sleeve like this; Then the emptying aperture of nut sleeve lower end is filled up epoxy resin, then epoxy resin glue is coated on bottom surface be installed in the hole that sleeper body lower plane matches, outside nut sleeve, have screw thread form to store up gum box.
A kind of method of mounting nuts cover of tie, comprise the following steps: first hole to the bolt guiding shelves of the fiber-reinforced resin matrix compound material section bar of pillow downwards from sleeper body upper surface, casting epoxy resin in hole, then nut sleeve is inserted in the epoxy, after epoxy resin cure.
A kind of method of mounting nuts cover of tie, comprise the following steps: be first drilled into the bolt guiding shelves of the fiber-reinforced resin matrix compound material section bar of pillow downwards at sleeper body upper surface under, casting epoxy resin in hole, after epoxy resin cure, to the epoxy resin body boring of having solidified, tapping, can obtain bolt thread hole that institute must install (note: the method there is no nut sleeve but on epoxy resin body by holing, tapping and the screwed hole that formed required for bolt.); Or after casting epoxy resin in hole, insert institute must installation and surface scribbles the bolt of release agent, after epoxy resin cure, looser a bolt and taken out, can obtain must install bolt thread hole (note: the method does not have nut sleeve but takes out bolt and form the screwed hole required for bolt on epoxy resin body.), described hole is circular hole or anti-rotation slotted eye.
Further improvement of the present invention is: described hole is circular hole or anti-rotation slotted eye.
The utility model compared with prior art has the following advantages:
1, core has the sleeper main production of pillow is pultrude process, and this production efficiency is high, and waste of raw materials is few, globality and cross sectional shape uniformity good, profile length is unrestricted.
2, high from heavy and light, intensity, weight is only the 1/3-1/4 of steel.
3, designability is high: the load born required by sleeper, manufactures and designs the sleeper of different-thickness, cross section, shape, size and varying strength.
4, good corrosion resistance: sleeper is corrosion-resistant, need not maintain, causes the problems such as environment pollution, saved maintenance and protection expense, especially use in the place of a few thing bad environments in periodic maintenance.
5, thermal conductivity is low, the coefficient of expansion is little, and the thermal stress produced when there being the temperature difference is more much more than metal.
6, easy for installation: sleeper is modularized production in the factory, the destruction for environment is little, and transporting and hoisting is convenient, reduces construction cost.
7, sleeper is except for newly-built railway, also can be used for sleeper to be repaired, namely replaces existing sleeper.
accompanying drawing illustrates:
Fig. 1 is tie structural representation of the present utility model;
Brill circular hole figure when Fig. 2 is sleeper mounting nuts cover;
Fig. 2-1 is the anti-slip slotted eye figure of brill when sleeper mounting nuts overlaps;
Fig. 3 is sleeper and the nut sleeve installation drawing of embodiment 1;
Fig. 4 is the structure chart of nut sleeve;
Fig. 4-1 is the nut sleeve top view with anti-rotation post;
The top view that Fig. 4-2 overlaps for barrel nut;
Fig. 5 is tie and the nut sleeve installation drawing of embodiment;
Fig. 6 position sleeper drilling figure;
Number in the figure: 1-sleeper body, 2-fiber-reinforced resin matrix compound material section bar, 3-expanded material, 4-nut sleeve, 5-epoxy resin, 6-bottom, 7-bolt hole, 8-hole, 9-metallic support, 10-screwed hole, 11-store up gum box.
Detailed description of the invention:
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
The utility model such as Fig. 1-6 shows a kind of detailed description of the invention of tie: a kind of sleeper, comprise sleeper body 1, described sleeper body 1 material is fiber-reinforced resin matrix compound material, the pillow of described sleeper body 1 is made up of fiber-reinforced resin matrix compound material section bar 2 and expanded material 3, (as shown in Figure 1) described sleeper body 1 is rectangle tubular, the thickness x of two relative walls of four walls of described rectangle tubular is 6-20mm, the thickness y of another two walls of four walls of described rectangle tubular is 6-20mm, the fiber-reinforced resin matrix compound material section bar 2 of described pillow is T-steel fiber-reinforced resin matrix compound material section bar, cross-shaped steel fiber-reinforced resin matrix compound material section bar, channel steel type fiber-reinforced resin matrix compound material section bar, king's font fiber-reinforced resin matrix compound material section bar or H fiber type strengthen resin-base composite material section bar, described expanded material 3 is phenol formaldehyde foam, polyurethane foam, polyvinyl chloride foam, polystyrene foam, regenerated plastics or regenerated plastics and wood chip mixture.
Expanded material 3 vertical direction exceeds the vertical file 0.5-2.5mm of the fiber-reinforced resin matrix compound material section bar 2 of pillow, short 3-the 8mm of bolt guiding shelves of the monolateral fiber-reinforced resin matrix compound material section bar 2 than pillow of expanded material 3 in the horizontal direction, the bolt of the fiber-reinforced resin matrix compound material section bar 2 of pillow guiding shelves are made to be embedded among sleeper body 1, vertical file is that sleeper adds the prime time, have sleeper inner support booster action, the intensity so just can born according to sleeper and the quantity of vertical file, design the wall thickness that sleeper is different; Crosspiece is bolt guiding shelves, is the verticality in order to ensure to install back nut cover.
Embodiment 1
A kind of method of mounting nuts cover of tie, comprise the following steps: first bore the bolt hole 7 that matches with bolt downwards until sleeper body 1 soffit (as shown in Figure 2) from the upper surface of sleeper body 1, the nut trepan then matched from the processing of sleeper body 1 soffit and nut sleeve 4 profile is to the baseplane of sleeper body upper surface; Then nut sleeve 4 is coated epoxy resin 5 glue, the nut sleeve 4 scribbling epoxy resin 5 glue is embedded in sleeper from sleeper body 1 soffit, to make in its nut sleeve 4 plane to the baseplane of sleeper body 1 upper surface, make the baseplane of the upper surface of sleeper body 1 play position-limiting action to nut sleeve 4 like this; Then storage gum box 11 emptying aperture of nut sleeve 4 lower end is filled up epoxy resin, then bottom 6 surface is coated epoxy resin 5 glue and be installed in the hole 8 that sleeper body 1 lower plane matches (as shown in Figure 3), outside nut sleeve 4, have screw thread form to store up gum box.
Embodiment 2
A kind of method of mounting nuts cover of tie, comprise the following steps: first hole to the bolt guiding shelves of the fiber-reinforced resin matrix compound material section bar 2 of pillow downwards from sleeper body 1 upper surface, casting epoxy resin 5 in hole 8, then in epoxy resin 5, nut sleeve is inserted, nut sleeve 4 is inserted, after epoxy resin 5 solidifies in hole.
Embodiment 3
A kind of method of mounting nuts cover of tie, comprise the following steps: be first drilled into the bolt guiding shelves of the fiber-reinforced resin matrix compound material section bar of pillow downwards at sleeper body 1 upper surface under, casting epoxy resin 5 in hole 8, after epoxy resin 5 solidifies, to solidified epoxy resin body boring, tapping, can obtain institute must installation bolt thread hole; Or the bolt inserting institute must install after casting epoxy resin 5 in hole 8, and surface scribbles release agent, after epoxy resin 5 solidifies, loosers a bolt and is taken out, can obtain the bolt thread hole (as shown in Figure 5) of palpus installation.
Embodiment 4
A kind of method of mounting nuts cover of tie, comprise the following steps: bore the bolt hole 7 matched with bolt downwards from sleeper body 1 upper surface, the expanded material 3 at sleeper two ends is emptied the position that metallic support 9 need be placed, metallic support 9 not with sleeper 1 together compound, because metallic support 9 is only placed on the two ends of sleeper 1, its length determines according to sleeper 1 installation requirement, metallic support 9 carries out modularized production in factory, operation has welding, boring, tapping, metallic support 9(as shown in Figure 6), metallic support 9 is embedded into sleeper body 1 must position, then bolt is penetrated bolt hole 7 from sleeper body 1 upper surface, be screwed in the screwed hole 10 of metallic support 9, then position is emptied to sleeper body 1 two ends and carry out expanded material 3 foaming process, solidify with expanded material 3, metallic support 9 defines location, looser a bolt and taken out, described hole is circular hole.(note: the method sleeper core only has one piece of expanded material without any the fiber-reinforced resin matrix compound material section bar of shape, could use metallic support.) metallic support is T-shaped metallic support, cross metallic support, channel steel type metallic support or H type metallic support.
Production technology of the present invention is produced by pultrude process, and product has that high-strength light, supporting capacity are high, indeformable, nonhygroscopic, volume stability, resistance to chemical attack, ageing-resistant, damping property good, non-conductive, structure simple, in-site installation advantage easily.
Claims (5)
1. a sleeper, comprises sleeper body (1), it is characterized in that: described sleeper body material is fiber-reinforced resin matrix compound material, and the pillow of described sleeper body (1) is made up of fiber-reinforced resin matrix compound material section bar (2) and expanded material (3).
2. a kind of sleeper according to claim 1, it is characterized in that: described sleeper body (1) is rectangle tubular, the thickness of two relative barrels of four barrels of described rectangle tubular is (x) 6-20mm, and the thickness (y) of another two barrels of four walls of described rectangle tubular is 6-20mm.
3. a kind of sleeper according to claim 1, is characterized in that: described fiber-reinforced resin matrix compound material section bar (2) is T-steel composite material section bar, cross-shaped steel fiber-reinforced resin matrix compound material section bar, channel steel type fiber-reinforced resin matrix compound material section bar, king's font fiber-reinforced resin matrix compound material section bar or H fiber type strengthen resin-base composite material section bar.
4. a kind of sleeper according to claim 1 or 2, is characterized in that: described expanded material (3) is phenol formaldehyde foam, polyurethane foam, polyvinyl chloride foam, polystyrene foam, regenerated plastics or regenerated plastics and wood chip mixture.
5. a kind of sleeper according to claim 4, it is characterized in that: expanded material (3) exceeds the vertical file 0.5-2.5mm of the fiber-reinforced resin matrix compound material section bar (2) of pillow in the vertical direction, short 3-the 8mm of bolt guiding shelves of the monolateral fiber-reinforced resin matrix compound material section bar (2) than pillow of expanded material (3) in the horizontal direction, makes the bolt of the fiber-reinforced resin matrix compound material section bar (2) of pillow guiding shelves be embedded among sleeper body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137142.2U CN204530330U (en) | 2015-03-11 | 2015-03-11 | A kind of sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137142.2U CN204530330U (en) | 2015-03-11 | 2015-03-11 | A kind of sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204530330U true CN204530330U (en) | 2015-08-05 |
Family
ID=53744350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520137142.2U Expired - Fee Related CN204530330U (en) | 2015-03-11 | 2015-03-11 | A kind of sleeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204530330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652182A (en) * | 2015-03-11 | 2015-05-27 | 中格复合材料（南通）有限公司 | Rail sleeper and method for mounting nut sleeve |
-
2015
- 2015-03-11 CN CN201520137142.2U patent/CN204530330U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652182A (en) * | 2015-03-11 | 2015-05-27 | 中格复合材料（南通）有限公司 | Rail sleeper and method for mounting nut sleeve |
| CN104652182B (en) * | 2015-03-11 | 2016-08-24 | 中格复合材料（南通）有限公司 | A kind of sleeper and the method installing nut sleeve thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Southeast of the intersection of Haixin road and Jiangxin Road, Tongzhou Bay, Nantong City, Jiangsu Province Patentee after: CHINAGRATE COMPOSITE STRUCTURES (NANTONG) Ltd. Address before: 226000, No. 11 Tong Fu Nan Road, Nantong economic and Technological Development Zone, Jiangsu Patentee before: CHINAGRATE COMPOSITE STRUCTURES (NANTONG) Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |