CN104455793A - Continuously knitted composite winding glass steel tube and production method thereof - Google Patents
Continuously knitted composite winding glass steel tube and production method thereof Download PDFInfo
- Publication number
- CN104455793A CN104455793A CN201410720283.7A CN201410720283A CN104455793A CN 104455793 A CN104455793 A CN 104455793A CN 201410720283 A CN201410720283 A CN 201410720283A CN 104455793 A CN104455793 A CN 104455793A
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- Prior art keywords
- glass steel
- steel tube
- layer
- knitting
- pipeline
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- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 title abstract description 5
- 229910000831 Steel Inorganic materials 0.000 title abstract 6
- 239000011521 glass Substances 0.000 title abstract 6
- 239000010959 steel Substances 0.000 title abstract 6
- 239000002131 composite material Substances 0.000 title abstract 3
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 238000009940 knitting Methods 0.000 claims description 41
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000005435 mesosphere Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 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
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 2
- 239000004634 thermosetting polymer Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract 3
- 239000011229 interlayer Substances 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 1
- 235000013339 cereals Nutrition 0.000 description 6
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Knitting Of Fabric (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a continuously knitted composite winding glass steel tube. Thermosetting resin is taken as a substrate to produce the glass steel tube; the glass steel tube comprises an inner wall, an outer wall, and an interlayer between the inner wall and the outer wall, wherein the inner wall and the outer wall adopt knitted fabric layers; the interlayer adopts a circumferential and longitudinal fiber layer. The continuously knitted composite winding glass steel tube adopting the technical scheme has the effects that a layer of knitted net is compounded on surfaces of the inner and outer walls of a glass steel pipeline, so as to form a complete knitted cylinder, the tension on the surfaces of the pipeline can be balanced, cracks are effectively reduced, an unwinding process in fibrage technology is not required, yarns are not required to be changed until thousands of meters of tubes are produced, the production efficiency is greatly improved, and the surface effect is artistic.
Description
[technical field]
The present invention relates to Glass Steel Tube technical field, relate to a kind of continous knitting compound specifically and pull around Glass Steel Tube and production method thereof.
[background technique]
Along with the develop rapidly of China's economy, to municipal engineering, electric power system, chemical industry, communication, the requirement of water conservancy irrigation safety also improves day by day, also more and more higher to the requirement of pipeline, for a long time, traditional conveyance conduit with cement pipe, iron pipe, PE, PVC is main, each shortcoming that there is its material and cause itself, gradually substitute by various novel pipeline; Glass fibre reinforced plastics is widely applied as a kind of novel tube.
Pull around the fiber reinforced plastic pipe surface overwhelming majority and adopt longitudinal glass fibre yarn laid out in parallel, climate, easily there is microscopic crack in time effects, moisture corrodes pipeline gradually by the crackle of pipeline, causes pipeline to damage early.In order to solve Surface Crack Problems; general method is at inner and outer surface design fibre felt layer; but fibrofelt can not become cylinder; necessary two panels or multi-disc composition; cause longitudinally having irregular seam like this; technique is usually difficult to control; apparent effect is bad, and patent CN102777708 adopts fibrage technique, and inner and outer surface forms a complete cylinder; although solve this problem very well; but weaving needs to be led by yarn on the husky cylinder of knitting machine, more loaded down with trivial details, and want frequent thread-changing; general production hundreds of rice will thread-changing, and manufacturing efficiency is affected.If at inner and outer surface compound one deck knitted net, form a complete knitting cylinder, pipe surface can be made to obtain balanced tension force, the generation of effective minimizing crackle, and do not need the operation of falling yarn, a few km can be produced and just need thread-changing, substantially increase manufacturing efficiency, and surface effect be also attractive in appearance.
[summary of the invention]
The object of the invention is to overcome above-mentioned defect, solve crackle and production efficiency problem, provide a kind of continous knitting compound of novel structure to pull around Glass Steel Tube and production method thereof, be provided with one deck knitted net by the inside and outside wall surface at Glass Steel Tube, balance tension, effectively reduces the generation of crackle.
To achieve these goals, design a kind of continous knitting compound and pull around Glass Steel Tube, this pipe is that matrix produces Glass Steel Tube with thermosetting resin, and described Glass Steel Tube comprises inner and outer wall, and is provided with a mesosphere between described inwall and described outer wall; Described inner and outer wall is knitted fibrous layer, make inside and outside wall surface recombination one deck knitted net of fiber reinforced plastic pipe, form a complete knitting cylinder, equalizing main surface tension, effective minimizing surface crack, described mesosphere is the strength layer that hoop and long grain fiber layer form pipeline.
Described thermo set matrix material adopts the thermoset resin material of polyester resin or epoxy resin or phenolic resin or polyurethane resin or other various modifications.
Described knitted layer lamination coating adopts flexible organic fibrous material, and described flexible organic fibrous material is polyster fibre or nylon fibre or staple or aramid fibre.
The hoop in mesosphere and long grain fiber adopt glass fibre or basalt fiber or carbon fiber or other fibers.
Above-mentioned a kind of continous knitting compound pulls around the production method of Glass Steel Tube, and the production method of this pipe comprises the steps:
A. knitting machine 2 after checking, is contained in hosiery yarns on rotating disk, slowly starts, reach predetermined speed, weave interior knit fabric tube on pipeline core;
B., on knitting bucket, layer overlay long grain fiber yarn 3, requires to determine longitudinal paving yarn amount according to tube performance, and impregnation;
C. start hoop Stetch Wrapping Machine 4, twine to design thickness, simultaneously impregnation;
D. repeat step b, repave the longitudinal yarn of one deck;
E. knitting machine 5 before starting, the knitting outer plexiform layer on surface, forms a complete pipeline configuration layer;
F. above construction layer is entered together the die cavity 6 of interior outer mold, interior outer mold adopts electric heating temperature control, allows the fiber solidifying of dipped glue be shaped to pipeline;
G. pulled out by pipeline with tractor 7, hauling speed and knitting speed, speed of wrap are synchronous, are automatically controlled by computer;
H. press preseting length with cutting machine 8 to cut off, become finished product pipeline.
The present invention compared with the existing technology, structure is unique, intensity is high, corrosion-resistant, good in thermal property, as required, produce various infrastructure product flexibly, product has good integrity, technique is simple, once-through, economic effect is given prominence to, particularly example technological scheme of the present invention is at inside and outside wall surface recombination one deck knitted net of fiber reinforced plastic pipe, form a complete knitting cylinder, pipe surface can be made to obtain balanced tension force, the generation of effective minimizing crackle, and do not need the operation of falling yarn, a few km can be produced and just need thread-changing, substantially increase manufacturing efficiency, and surface effect is also attractive in appearance.
[accompanying drawing explanation]
Fig. 1 is the structural representation that continous knitting compound of the present invention pulls around Glass Steel Tube;
Fig. 2 is the schematic diagram of inventive pipeline construction layer;
See Fig. 1: 1. knitting machine 6. mold cavity 7. tractor 8. cutting machine 9. knitted layer 10. longitudinal layer 11. hoop layer before the rear knitting machine 3. longitudinal layer 4. hoop layer 5. of pipeline core 2.;
Specify Fig. 2 as Figure of abstract of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, the invention will be further described, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention, the manufacturing technology of this fiber and the combination of resin, be conducive to the surface crack solving this pipeline, improves tension force.
As shown in Figure 1, the continous knitting compound of the present invention technological scheme that pulls around Glass Steel Tube is as follows:
A knitting machine is respectively established in the front and back of hoop Stetch Wrapping Machine, and internal layer knitted layer produced by rear knitting machine 2, and outer knitted layer produced by front knitting machine 5.Between two knitted layers, have longitudinal layer 3 of longitudinal Stetch Wrapping Machine and the hoop layer 4 of hoop Stetch Wrapping Machine, each layer yarn amount is by usage requirement design, and hoop layer is by continuous winding machine continuous winding, entirety enters solidifying in mold cavity 6, finally cuts into finished product by cutting machine 8.
As shown in Figure 2, this continous knitting compound pulls around the typical products ply angles of Glass Steel Tube and is: knitted layer/longitudinal layer/hoop layer/longitudinal layer/knitted layer.
This continous knitting compound pulls around Glass Steel Tube, take thermosetting resin as matrix, and produce Glass Steel Tube, Glass Steel Tube comprises inwall, outer wall, and the mesosphere between inwall and outer wall;
Inner and outer wall is knitted fibrous layer, and mesosphere is hoop and long grain fiber layer.
Further, thermo set matrix material is: the thermosetting resin of the various modifications such as polyester resin, epoxy resin, phenolic resin, polyurethane resin.
Further, knitted layer lamination coating is flexible organic fiber: polyster fibre, nylon fibre, staple or aramid fibre etc.Hoop and long grain fiber material are: glass fibre, basalt fiber or carbon fiber etc.
Tractor start time, by actuating motor, rate signal is passed to knitting machine and Stetch Wrapping Machine, knitting speed and speed of wrap synchronous with tractor, whole production line is controlled by computer full-automatic.
Present invention also offers the production method that this continous knitting compound pulls around Glass Steel Tube, concrete implementation step is as follows:
A. knitting machine 2 after checking, is contained in hosiery yarns on rotating disk, slowly starts, reach predetermined speed, weave knit fabric tube on pipeline core 1;
B. knitting interior online through 3 layer overlay long grain fiber yarns, follow and require to determine longitudinal paving yarn amount, longitudinal silk steeping vat impregnation according to tube performance;
C. start hoop Stetch Wrapping Machine 4, twine to design thickness, simultaneously impregnation;
D. repeat b, repave the longitudinal yarn of one deck;
E. knitting machine 5 before starting, the knitting outer plexiform layer on surface, forms a complete pipeline configuration layer, as shown in Figure 2;
F. above construction layer is entered together the die cavity of interior outer mold 6, interior outer mold adopts electric heating temperature control, allows the fiber solidifying of dipped glue be shaped to pipeline;
G. pulled out by pipeline with tractor 7, hauling speed and knitting speed, speed of wrap are synchronous, are automatically controlled by computer;
H. press preseting length with cutting machine 8 to cut off, become finished product pipeline.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various change, combination and change.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (5)
1. continous knitting compound pulls around a Glass Steel Tube, and it is characterized in that this pipe is that matrix produces Glass Steel Tube with thermosetting resin, described Glass Steel Tube comprises inner and outer wall, and the mesosphere between described inwall and described outer wall; Described inner and outer wall is knitted fibrous layer, make inside and outside wall surface recombination one deck knitted net of fiber reinforced plastic pipe, form a complete knitting cylinder, equalizing main surface tension, effective minimizing surface crack, described mesosphere is the strength layer that hoop and long grain fiber layer form pipeline.
2. a kind of continous knitting compound as claimed in claim 1 pulls around Glass Steel Tube, it is characterized in that described thermo set matrix material adopts the thermoset resin material of polyester resin or epoxy resin or phenolic resin or polyurethane resin or other various modifications.
3. a kind of continous knitting compound as claimed in claim 1 pulls around Glass Steel Tube, it is characterized in that described knitted layer lamination coating adopts flexible organic fibrous material, and described flexible organic fibrous material is polyster fibre or nylon fibre or staple or aramid fibre.
4. a kind of continous knitting compound as claimed in claim 1 pulls around Glass Steel Tube, it is characterized in that the hoop in mesosphere and long grain fiber adopt glass fibre or basalt fiber or carbon fiber or other fibers.
5. continous knitting compound pulls around a production method for Glass Steel Tube, it is characterized in that the production method of this pipe comprises the steps:
A. knitting machine (2) after checking, is contained in hosiery yarns on rotating disk, slowly starts, reach predetermined speed, weave interior knit fabric tube on pipeline core;
B. layer overlay long grain fiber yarn (3) on knit fabric tube, requires to determine longitudinal paving yarn amount according to tube performance, and impregnation;
C. start hoop Stetch Wrapping Machine (4), twine to design thickness, simultaneously impregnation;
D. repeat step b, repave the longitudinal yarn of one deck;
E. knitting machine (5) before starting, the knitting outer plexiform layer on surface, forms a complete pipeline configuration layer;
F. above construction layer is entered together the die cavity (6) of interior outer mold, interior outer mold adopts electric heating temperature control, allows the fiber solidifying of dipped glue be shaped to pipeline;
G. use tractor (7) to be pulled out by pipeline, hauling speed and knitting speed, speed of wrap are synchronous, are automatically controlled by computer;
H. use cutting machine (8) to cut off by preseting length, become finished product pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720283.7A CN104455793B (en) | 2014-12-01 | 2014-12-01 | Continuous knitting is compound pulls around glass reinforced plastic pipe and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720283.7A CN104455793B (en) | 2014-12-01 | 2014-12-01 | Continuous knitting is compound pulls around glass reinforced plastic pipe and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455793A true CN104455793A (en) | 2015-03-25 |
| CN104455793B CN104455793B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410720283.7A Active CN104455793B (en) | 2014-12-01 | 2014-12-01 | Continuous knitting is compound pulls around glass reinforced plastic pipe and production method thereof |
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| Country | Link |
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| CN (1) | CN104455793B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952981A (en) * | 2016-05-20 | 2016-09-21 | 深圳市大疆创新科技有限公司 | Pultrusion pipe and manufacturing method and equipment thereof |
| CN107612233A (en) * | 2017-09-01 | 2018-01-19 | 瑞安市联成电器配件有限公司 | The processing method of commutator strengthening ring |
| WO2018046003A1 (en) * | 2016-09-12 | 2018-03-15 | 胜利油田新大管业科技发展有限责任公司 | Glass fiber reinforced plastic downhole pipe for separate layer water injection |
| CN111055510A (en) * | 2018-10-16 | 2020-04-24 | 湖南易净环保科技有限公司 | Continuous knitting composite pulling and winding glass steel pipe and production method thereof |
| CN111536327A (en) * | 2020-05-30 | 2020-08-14 | 杭州百诺电力科技有限公司 | Continuous weaving pulling-winding composite glass steel pipe and production method thereof |
| CN112009048A (en) * | 2019-05-31 | 2020-12-01 | 江苏华盟新型材料科技有限公司 | High-strength fiber pipeline and manufacturing method thereof |
| CN112721259A (en) * | 2020-12-08 | 2021-04-30 | 重庆泓通管业有限公司 | Processing technology of fiber woven winding pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272899Y (en) * | 1996-09-24 | 1998-01-21 | 蔡水龙 | Glass fibre knitted net |
| US6328080B1 (en) * | 2000-09-27 | 2001-12-11 | Federal-Mogul Systems Protection Group, Inc. | Woven sleeve with integral monofilament fasteners |
| CN101085551A (en) * | 2007-07-11 | 2007-12-12 | 郝跟进 | Preparation method for on-line pulling and extruding glass steel tube with multilayer annular weaving structure |
| CN101913254A (en) * | 2010-07-21 | 2010-12-15 | 高宝安 | Vertical pultrusion process and device of multilayer fiber composite laminated section bar |
| CN102434727A (en) * | 2011-11-30 | 2012-05-02 | 徐云清 | Glass fiber reinforced plastic finned tube and production method |
| CN102777708A (en) * | 2012-07-25 | 2012-11-14 | 广东宝通玻璃钢有限公司 | Fiber-woven pultrusion pipeline and production method |
-
2014
- 2014-12-01 CN CN201410720283.7A patent/CN104455793B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272899Y (en) * | 1996-09-24 | 1998-01-21 | 蔡水龙 | Glass fibre knitted net |
| US6328080B1 (en) * | 2000-09-27 | 2001-12-11 | Federal-Mogul Systems Protection Group, Inc. | Woven sleeve with integral monofilament fasteners |
| CN101085551A (en) * | 2007-07-11 | 2007-12-12 | 郝跟进 | Preparation method for on-line pulling and extruding glass steel tube with multilayer annular weaving structure |
| CN101913254A (en) * | 2010-07-21 | 2010-12-15 | 高宝安 | Vertical pultrusion process and device of multilayer fiber composite laminated section bar |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952981A (en) * | 2016-05-20 | 2016-09-21 | 深圳市大疆创新科技有限公司 | Pultrusion pipe and manufacturing method and equipment thereof |
| WO2018046003A1 (en) * | 2016-09-12 | 2018-03-15 | 胜利油田新大管业科技发展有限责任公司 | Glass fiber reinforced plastic downhole pipe for separate layer water injection |
| CN107612233A (en) * | 2017-09-01 | 2018-01-19 | 瑞安市联成电器配件有限公司 | The processing method of commutator strengthening ring |
| CN111055510A (en) * | 2018-10-16 | 2020-04-24 | 湖南易净环保科技有限公司 | Continuous knitting composite pulling and winding glass steel pipe and production method thereof |
| CN112009048A (en) * | 2019-05-31 | 2020-12-01 | 江苏华盟新型材料科技有限公司 | High-strength fiber pipeline and manufacturing method thereof |
| CN111536327A (en) * | 2020-05-30 | 2020-08-14 | 杭州百诺电力科技有限公司 | Continuous weaving pulling-winding composite glass steel pipe and production method thereof |
| CN112721259A (en) * | 2020-12-08 | 2021-04-30 | 重庆泓通管业有限公司 | Processing technology of fiber woven winding pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455793B (en) | 2017-01-04 |
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Address after: 518118 No. 6352 Pingshan Avenue, Shatian Community, Kengzi Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: GUANGDONG BAOTONG FRP Co.,Ltd. Address before: 516221 Xin'an Formation 4, Qiuchang Xintang Village, Huiyang District, Huizhou City, Guangdong Province Patentee before: GUANGDONG BAOTONG FRP Co.,Ltd. |
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Address after: 518118 No. 6352 Pingshan Avenue, Shatian Community, Kengzi Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen xinbaotong Material Technology Co.,Ltd. Address before: 518118 No. 6352 Pingshan Avenue, Shatian Community, Kengzi Street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: GUANGDONG BAOTONG FRP Co.,Ltd. |
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Denomination of invention: Continuous knitting composite stretch wound GRP pipe and its production method Effective date of registration: 20230223 Granted publication date: 20170104 Pledgee: Shenzhen Branch of Huishang Bank Co.,Ltd. Pledgor: Shenzhen xinbaotong Material Technology Co.,Ltd. Registration number: Y2023980033225 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20170104 Pledgee: Shenzhen Branch of Huishang Bank Co.,Ltd. Pledgor: Shenzhen xinbaotong Material Technology Co.,Ltd. Registration number: Y2023980033225 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |