CN108266578A - A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method - Google Patents
A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method Download PDFInfo
- Publication number
- CN108266578A CN108266578A CN201810091459.5A CN201810091459A CN108266578A CN 108266578 A CN108266578 A CN 108266578A CN 201810091459 A CN201810091459 A CN 201810091459A CN 108266578 A CN108266578 A CN 108266578A
- Authority
- CN
- China
- Prior art keywords
- reinforced plastics
- steel pipe
- coating steel
- glass fibre
- fibre reinforced
- 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.)
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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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
- B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
Abstract
The invention discloses a kind of Corrosion Protection of Fiber Reinforced Plastics pipe, Corrosion Protection of Fiber Reinforced Plastics pipe by internal layer coating steel pipe and outer layer fiber glass reinforced plastic cover compression molding, manufacturing process is：First cleaning coating steel pipe surface, then glass fibre reinforced plastics are embossed on coating steel pipe with mold, it can directly be processed in factory, it is then sent to site operation assembling, anti-corrosion mode more of the prior art has saved time and artificial, and better anti-corrosion effect can be reached, and it is cost-effective, improve site operation efficiency.
Description
Technical field
The present invention relates to anti-corrosion productions and mounting technique field, particularly a kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method.
Background technology
Original gas pipeline is generally coating steel pipe, when being laid with using just old-fashioned " three oily two cloth " formula anti-corrosion side
Formula finds that the anticorrosion surface layer of the Gas Pipe of such anti-corrosion mode is unable to reach requirement for anticorrosion, erosion resistant coating after use for many years
All there is breakage, requirement in 30 years is not achieved in Process anti-corrosion layer intensity at that time, so using for reference electronic field wire insulation later
There is the new erosion resistant coating being sleeved on using thermal shrinkable sleeve on coating steel pipe in mode, and cost is relatively low, but it is still relatively thin, easily broken
Damage；Also one kind is to cover bitumen layer and steel pipe from inside to outside on coating steel pipe, using 3PE anti-corrosions, this mode anti-corrosion effect
Fruit is good, but production cost is high.
Invention content
For overcome the deficiencies in the prior art, a kind of production and processing of present invention offer is at low cost and can reach existing national standard
It is required that Corrosion Protection of Fiber Reinforced Plastics pipe.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of Corrosion Protection of Fiber Reinforced Plastics pipe, by the fiber glass reinforced plastic cover compression molding of the coating steel pipe and outer layer of internal layer.
The fiber glass reinforced plastic cover is made of upper glass fibre reinforced plastics and lower glass fibre reinforced plastics.
A diameter of 15-150mm of the coating steel pipe, wall thickness 2-20mm, the thickness of the fiber glass reinforced plastic cover is 2-20mm.
Above-mentioned Corrosion Protection of Fiber Reinforced Plastics pipe in order to obtain, the present invention also provides a kind of manufacturing method of Corrosion Protection of Fiber Reinforced Plastics pipe, including
Following steps：
（1）Clean outer surface and then the natural air drying of coating steel pipe；
（2）Lower die and upper mold are heated to 190 ± 2 DEG C and kept；
（3）Lower glass fibre reinforced plastics are put into the mould storehouse of lower die, then coating steel pipe is put on lower glass fibre reinforced plastics, finally by upper glass
Glass steel bar is put on coating steel pipe；
（4）Upper mold is molded with lower die, clamps lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；
（5）Lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics
Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes；
（6）Demoulding is got product.
In above-mentioned steps, step（1）Described in coating steel pipe cleaning before, surface is through coarse processing.
The beneficial effects of the invention are as follows：The Corrosion Protection of Fiber Reinforced Plastics pipe of the present invention is by the coating steel pipe of internal layer and the fiberglass of outer layer
Compression molding is covered, can directly be processed in factory, is then sent to site operation assembling, anti-corrosion side more of the prior art
Formula has saved time and artificial, and can reach same technique effect, cost-effective, improves site operation efficiency.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure schematic cross-sectional view of the present invention；
Fig. 2 is the structure diagram of lower die.
Specific embodiment
The present invention is further described with reference to Fig. 1, Fig. 2, and with reference to specification and specific embodiment.Implement below
Example will be helpful to those skilled in the art and further understand the present invention, but embodiment is not the present invention any type of limit
It is fixed.
A kind of Corrosion Protection of Fiber Reinforced Plastics pipe, by 2 compression molding of fiber glass reinforced plastic cover of the coating steel pipe 1 and outer layer of internal layer, the glass
Steel bushing 2 is made of upper glass fibre reinforced plastics and lower glass fibre reinforced plastics, a diameter of 15-150mm, the wall thickness 2-20mm of 1 pipe of galvanized steel,
The thickness of the fiber glass reinforced plastic cover 2 is 2-20mm, wherein the fiber glass reinforced plastic cover 2 is glass fiber reinforced composite plastics（GFRP）, institute
Fiber glass reinforced plastic cover is stated to be mixed by epoxy resin and glass fibre.
Above-mentioned Corrosion Protection of Fiber Reinforced Plastics pipe in order to obtain, the present invention also provides a kind of manufacturing method of Corrosion Protection of Fiber Reinforced Plastics pipe, including
Following steps：
（1）Clean outer surface and then the natural air drying of coating steel pipe；
（2）Lower die 3 and upper mold are heated to 160 ± 2 DEG C and kept；
（3）Lower glass fibre reinforced plastics are put into the mould storehouse of lower die, then coating steel pipe is put on lower glass fibre reinforced plastics, finally by upper glass
Glass steel bar is put on coating steel pipe；
（4）Upper mold is molded with lower die, clamps lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；
（5）Lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics
Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes, and high-temperature pressurizing enables fiber glass reinforced plastic cover to be fastened on coating steel pipe herein
Surface, one-pass molding and without cooling；
（6）Demoulding is got product.
In above-mentioned steps, step（1）For cleaning coating steel pipe surface, before the coating steel pipe cleaning, surface is through thick
Rough processing, the surface roughness of the coating steel pipe 1 is 50-100 μm, and the step main purpose is so that fiber glass reinforced plastic cover is more firm
Solid be sleeved on coating steel pipe surface, avoid coming off；Lower die 3 is provided with mould storehouse 4, and the upper mold mutually is mirrored into setting with lower die 3, step
Suddenly（3）Specific practice be：First lower glass fibre reinforced plastics are put into the mould storehouse 4 of lower die 3, coating steel pipe 1 is then placed on lower glass
On steel bar, then upper glass fibre reinforced plastics are placed on coating steel pipe 1, finally close upper mold, step is simple, easily operated.
For above-mentioned lower glass fibre reinforced plastics and upper glass fibre reinforced plastics, the present invention is synthesized using the component of following parts by weight：
Epoxy resin：40-50 parts；
Glass fibre：20-25 parts；
Hydrogen peroxide：2-4 parts
Fire retardant：4-8 parts；
Potassium hydroxide：1-5 parts；
Unsaturated polyester (UP) fiber：10-15 parts；
Stannic oxide：1-3 parts.
It is made through the obtained glass fibre reinforced plastics of more than component synthesis processing at low cost, use scope is wide, particularly hydrogen peroxide
Micro addition as curing agent makes its elastic rubber like before heating, and easy to process, good toughness, corrosion resistance is strong, so
Afterwards using 160-260 DEG C of temperature, pressure 2.90-5.10MPa, and keep the hardness cured after the effect of 4-10 minutes
Also it is corresponding to improve, there is very strong rigidity and corrosion resistance, meet the requirement for anticorrosion of Gas Pipe.
The present invention also provides the embodiment of two glass fibre reinforced plastics：
One embodiment：
Epoxy resin：50 parts；
Glass fibre：25 parts；
Hydrogen peroxide：2 parts
Fire retardant：4 parts；
Potassium hydroxide：3 parts；
Unsaturated polyester (UP) fiber：15 parts；
Stannic oxide：1 part.
It is made through the obtained glass fibre reinforced plastics of more than component synthesis processing at low cost, use scope is wide, particularly hydrogen peroxide
Micro addition as curing agent makes its elastic rubber like before heating, easy to process, good toughness, and corrosion resistance is strong.
Second embodiment：
Epoxy resin：40 parts；
Glass fibre：25 parts；
Hydrogen peroxide：4 parts
Fire retardant：8 parts；
Potassium hydroxide：5 parts；
Unsaturated polyester (UP) fiber：15 parts；
Stannic oxide：3 parts.
It is made through the obtained glass fibre reinforced plastics of more than component synthesis processing at low cost, use scope is wide, particularly hydrogen peroxide
Micro addition as curing agent makes its elastic rubber like before heating, easy to process, good toughness, and corrosion resistance is strong.
For the method for above-mentioned manufacture Corrosion Protection of Fiber Reinforced Plastics pipe, the application provides following embodiment：
Embodiment 1：Prepare a diameter of 15mm, the coating steel pipe that wall thickness is 2.75mm, prepare the strip fiberglass band that thickness is 4mm
Spare, polishing coating steel pipe surface makes its surface roughness be 50 μm, then the coating steel pipe after cleaning polishing, heating lower die and
Upper mold is to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold, so
It is squeezed afterwards by pressuring machine, wherein heating temperature is 160 DEG C, moulding pressure 3.50MPa, and heating pressing time is 4 minutes, demoulding
It gets product.
Embodiment 2：Prepare a diameter of 15mm, the coating steel pipe that wall thickness is 3mm, prepare the strip fiberglass that thickness is 5mm
With spare, the coating steel pipe after then cleaning is polished, lower die and upper mold are heated to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, galvanized steel
Pipe and upper glass fibre reinforced plastics are according to step（3）Lower die is put into in upper mold, then being squeezed by pressuring machine, wherein heating temperature is 180 DEG C,
Moulding pressure is 3.50MPa, and heating pressing time is 4 minutes, and demoulding is got product.
Embodiment 3：Prepare a diameter of 20mm, the coating steel pipe that wall thickness is 3mm, prepare the strip fiberglass that thickness is 4mm
With spare, polishing coating steel pipe surface makes its surface roughness be 100 μm, then the coating steel pipe after cleaning polishing, under heating
Mould and upper mold are to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold
In, it is then squeezed by pressuring machine, wherein heating temperature is 200 DEG C, moulding pressure 2.90MPa, and heating pressing time is 4 points
Clock, demoulding are got product.
Embodiment 4：Prepare a diameter of 20mm, the coating steel pipe that wall thickness is 3.5mm, prepare the strip glass that thickness is 5mm
Steel band is spare, and polishing coating steel pipe surface makes its surface roughness be 100 μm, then the coating steel pipe after cleaning polishing, heating
Lower die and upper mold are to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold
In, it is then squeezed by pressuring machine, wherein heating temperature is 160 DEG C, moulding pressure 4.50MPa, and heating pressing time is 10 points
Clock, demoulding are got product.
Embodiment 5：Prepare a diameter of 50mm, the coating steel pipe that wall thickness is 4mm, prepare the strip fiberglass that thickness is 6mm
With spare, polishing coating steel pipe surface makes its surface roughness be 50 μm, and then the coating steel pipe after cleaning polishing, heats lower die
With upper mold to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold,
Then it is squeezed by pressuring machine, wherein heating temperature is 190 DEG C, moulding pressure 4.50MPa, and heating pressing time is 10 minutes,
Demoulding is got product.
Embodiment 6：Prepare a diameter of 50mm, the coating steel pipe that wall thickness is 5mm, prepare the strip fiberglass that thickness is 6mm
With spare, polishing coating steel pipe surface makes its surface roughness be 50 μm, and then the coating steel pipe after cleaning polishing, heats lower die
With upper mold to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold,
Then it is squeezed by pressuring machine, wherein heating temperature is 200 DEG C, moulding pressure 4.50MPa, and heating pressing time is 10 minutes,
Demoulding is got product.
Embodiment 7：Prepare a diameter of 80mm, the coating steel pipe that wall thickness is 5mm, prepare the strip fiberglass that thickness is 6mm
With spare, polishing coating steel pipe surface makes its surface roughness be 100 μm, then the coating steel pipe after cleaning polishing, under heating
Mould and upper mold are to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold
In, it is then squeezed by pressuring machine, wherein heating temperature is 200 DEG C, moulding pressure 5.00MPa, and heating pressing time is 8 points
Clock, demoulding are got product.
Embodiment 8：Prepare a diameter of 150mm, the coating steel pipe that wall thickness is 6mm, prepare the strip fiberglass that thickness is 7mm
With spare, polishing coating steel pipe surface makes its surface roughness be 100 μm, then the coating steel pipe after cleaning polishing, under heating
Mould and upper mold are to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold
In, it is then squeezed by pressuring machine, wherein heating temperature is 250 DEG C, moulding pressure 5.00MPa, and heating pressing time is 10 points
Clock, demoulding are got product.
Embodiment 9：Prepare a diameter of 150mm, the coating steel pipe that wall thickness is 7mm, prepare the strip fiberglass that thickness is 8mm
With spare, coating steel pipe is then cleaned, lower die and upper mold are heated to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass
Glass steel bar is according to step（3）Lower die is put into in upper mold, then being squeezed by pressuring machine, wherein heating temperature is 260 DEG C, moulding pressure
For 5.1MPa, heating pressing time is 10 minutes, and demoulding is got product.
Embodiment 10：Prepare a diameter of 30mm, the coating steel pipe that wall thickness is 7mm, prepare the strip glass that thickness is 20mm
Steel band is spare, and polishing coating steel pipe surface makes its surface roughness be 100 μm, then the coating steel pipe after cleaning polishing, heating
Lower die and upper mold are to 160 ± 2 DEG C, by lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics according to step（3）It is put into lower die and upper mold
In, it is then squeezed by pressuring machine, wherein heating temperature is 260 DEG C, moulding pressure 5.1MPa, and heating pressing time is 10 points
Clock, demoulding are got product.
Corrosion Protection of Fiber Reinforced Plastics pipe reaches following national standard after testing made of more than production method：Tensile strength meets
GB/T1447-2005, bending strength meet GB/T1449-2005, and hardness Barcol meets GB/T3854-2005, and oxygen index (OI) meets
GB/T8924-2005, resistant to chemical media corrosivity（Sodium hydroxide）Meet GB/T3857-2017, resistant to chemical media corrosivity（Salt
Acid）Meet GB/T3857-2017；This Corrosion Protection of Fiber Reinforced Plastics pipe can directly process in factory, be then sent to site operation group
Dress, anti-corrosion mode more of the prior art has saved time and artificial, and can reach same technique effect, cost-effective,
Improve site operation efficiency.
Claims (5)
1. a kind of Corrosion Protection of Fiber Reinforced Plastics pipe, it is characterised in that it by internal layer coating steel pipe and outer layer fiber glass reinforced plastic cover compression molding.
2. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that the fiber glass reinforced plastic cover is by upper glass fibre reinforced plastics under
Glass fibre reinforced plastics are formed.
3. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that a diameter of 15-150mm of the coating steel pipe,
Wall thickness is 2-20mm, and the thickness of the fiber glass reinforced plastic cover is 2-20mm.
4. the manufacturing method of a kind of Corrosion Protection of Fiber Reinforced Plastics pipe as described in claims 1 to 3 is any, it is characterised in that including following step
Suddenly：
（1）Clean outer surface and then the natural air drying of coating steel pipe；
（2）Lower die and upper mold are heated to 160 ± 2 DEG C and kept；
（3）Lower glass fibre reinforced plastics are put into the mould storehouse of lower die, then coating steel pipe is put on lower glass fibre reinforced plastics, finally by upper glass
Glass steel bar is put on coating steel pipe；
（4）Upper mold is molded with lower die, clamps lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；
（5）Lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics
Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes；
（6）Demoulding is got product.
5. the manufacturing method of Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 4, it is characterised in that step（1）Described in galvanized steel
Before pipe cleaning, surface is through coarse processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091459.5A CN108266578A (en) | 2018-01-30 | 2018-01-30 | A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091459.5A CN108266578A (en) | 2018-01-30 | 2018-01-30 | A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266578A true CN108266578A (en) | 2018-07-10 |
Family
ID=62777166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810091459.5A Pending CN108266578A (en) | 2018-01-30 | 2018-01-30 | A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500452A (en) * | 2019-09-19 | 2019-11-26 | 广东亿丰轩科技有限公司 | A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314206Y (en) * | 1997-11-04 | 1999-04-14 | 沈焱 | Composite thermal insulation wind pipe and joint |
| KR20100059120A (en) * | 2008-11-26 | 2010-06-04 | 공석태 | Frp pipe |
| CN203082390U (en) * | 2013-02-01 | 2013-07-24 | 天津中之景环保科技有限公司 | Glass reinforced plastic reinforced composite steel pipe |
| CN103372940A (en) * | 2012-04-11 | 2013-10-30 | 浙江中意玻璃钢有限公司 | Method for manufacturing glass steel pipe fitting by die-pressing method |
| GB2503901A (en) * | 2012-07-10 | 2014-01-15 | Khalil Abu Al-Rubb | Dual layer pipe |
| CN104985831A (en) * | 2015-06-06 | 2015-10-21 | 重庆通用工业(集团)有限责任公司 | Preparation method for glass fiber reinforced plastic pipe |
-
2018
- 2018-01-30 CN CN201810091459.5A patent/CN108266578A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2314206Y (en) * | 1997-11-04 | 1999-04-14 | 沈焱 | Composite thermal insulation wind pipe and joint |
| KR20100059120A (en) * | 2008-11-26 | 2010-06-04 | 공석태 | Frp pipe |
| CN103372940A (en) * | 2012-04-11 | 2013-10-30 | 浙江中意玻璃钢有限公司 | Method for manufacturing glass steel pipe fitting by die-pressing method |
| GB2503901A (en) * | 2012-07-10 | 2014-01-15 | Khalil Abu Al-Rubb | Dual layer pipe |
| CN203082390U (en) * | 2013-02-01 | 2013-07-24 | 天津中之景环保科技有限公司 | Glass reinforced plastic reinforced composite steel pipe |
| CN104985831A (en) * | 2015-06-06 | 2015-10-21 | 重庆通用工业(集团)有限责任公司 | Preparation method for glass fiber reinforced plastic pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500452A (en) * | 2019-09-19 | 2019-11-26 | 广东亿丰轩科技有限公司 | A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method |
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Application publication date: 20180710 |
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