CN107061874A - A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe - Google Patents
A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe Download PDFInfo
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- CN107061874A CN107061874A CN201710114609.5A CN201710114609A CN107061874A CN 107061874 A CN107061874 A CN 107061874A CN 201710114609 A CN201710114609 A CN 201710114609A CN 107061874 A CN107061874 A CN 107061874A
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- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/18—Polyesters; Polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to pipe technology field, more particularly, to a kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe.Including internal layer, ultraviolet resistant layer, burning into sand layer and outer layer, the ultraviolet resistant layer is fixedly connected on internal layer outer surface；The burning into sand layer is fixedly connected on ultraviolet resistant layer outer surface；The outer layer is fixedly connected on burning into sand layer outer surface.Glass reinforced plastic pipe of the present invention is corrosion-resistant, high temperature resistant, effectively the service life of extension glass reinforced plastic pipe.
Description
【Technical field】
The present invention relates to pipe technology field, more particularly, to a kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe.
【Background technology】
The tubing used on domestic market is generally steel pipe, pvc pipe, pipe of cement and general glass reinforced plastic pipe.Steel pipe is one
Kind of traditional piping material, by steel plate spiral winding into being welded after cylindrical shape, heavier-weight installs inconvenience and resistance to corrosion is poor；
Steel pipe is when being embedded to underground operation, and water quality, surrounding soil, underground water in pipe are buried with the presence or absence of factors such as electric fields near area,
Pipe inside and outside wall can be set to produce corrosion.Therefore, standard is provided：Body surfaces externally and internally should coat asphalitine or other anti-corrosion materials.
Because coating material is different from the material of steel pipe, in longtime running, acted on by cold and hot, hydraulic blow of weather etc., easily production
Raw interface debonding comes off, and progressively loses anti-corrosion coat, so that the inner surface iron molecule of pipe produces oxidation, electrochemistry
Corrosion etc., will reduce service life.The operating condition that steel pipe is required in welding is higher, at the scene by condition in work progress
Limitation welding quality be often difficult to ensure that therefore the sealed reliability of weld, not as good as glass reinforced plastic pipe, booster phenomenon is exactly
In the weld of steel pipe.The intensity of other pvc pipe is too low, generally requires around to irrigate cement to strengthen resistance to compression in actual use
Power, long construction period, and material have certain pollution in itself；Pipe of cement is too heavy, and installation and transportation are inconvenient；These are passed
The roughness coefficien of material under the overall leadership is high, and absolute roughness is big, and wall surface resistance is big.Fiberglass is a kind of infant industry material to mould Dai Gang
Material, it is with the clear advantage, being widely used in such as light weight, specific strength is high, corrosion-resistant, frictional resistance is small, service life length
The essential industry such as work, power plant, municipal works, sewage disposal field, especially in item works such as the drainings, slip casting and gas pumping in colliery
Industry occasion is even more to be widely used；And installed in outdoor GRP pipe, be subjected to exposing to the weather all the year round, particularly ultraviolet
Molecular resin chain in the GRP pipe of the strong highlands of line, its raw material can split under the scorching of ultraviolet, cause
The construction stretch intensity decreases of GRP pipe, hence it is evident that shorten the use longevity of GRP pipe.
【The content of the invention】
In view of the foregoing, it is necessary to provide a kind of anti-aging, anticorrosion, anti-pressure ability by force, exposure remains unchanged in the sun
The glass reinforced plastic pipe of service life length.
The purpose of the present invention is achieved through the following technical solutions：
A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe, including internal layer, ultraviolet resistant layer, burning into sand layer and outer layer,
The ultraviolet resistant layer is fixedly connected on internal layer outer surface；
The burning into sand layer is fixedly connected on ultraviolet resistant layer outer surface；
The outer layer is fixedly connected on burning into sand layer outer surface；
Further, the burning into sand layer is mixed to prepare by silica, quartz sand, flyash and calcium carbonate.
Further, the outer layer is made up of surface of polyester felt and furane resins.
Further, the internal layer preparation method is：Meter takes following raw material to constitute by weight：Bisphenol type epoxy tree
20-30 parts of fat, 8-15 parts of polyamide curing agent, 1-3 parts of silane coupler, 5-7 parts of ethyl phthalate, 1-2 parts of alundum (Al2O3), receive
8-12 parts of 0.1-0.3 parts of antimony-doped stannic oxide of rice, 1-2 parts of polyurethane and mica, above-mentioned raw materials are well mixed and are used as lamination material
Polyester film, fiberglass surfacing mat and glass fibre knitting carpet veneer are pressed into internal layer.
Further, the burning into sand layer is counted by following raw material by weight：0-12 parts of silica 1, quartz sand 25-30
Part, the 6-10 parts of adhesions of 3-6 parts of flyash and calcium carbonate are formed, and adhesion agent is used as by unsaturated polyester resin.
Further, the outer layer is by surface of polyester felt and furane resins by weight 1:9 compositions.
Further, the particle grades of the quartz sand are according to the following ratio：
The quartz sand particle of granulometric range 20-30 mesh, quality accounting is 50%；
The quartz sand particle of granulometric range 40-50 mesh, quality accounting is 20%；
The quartz sand particle of granulometric range 60-70 mesh, quality accounting is 15%；
The quartz sand particle of granulometric range 100-150 mesh, quality accounting is 15%.
Further, the ultraviolet resistant layer is made up of glass fibre.
Corrosion-resistant and high-temperature resistant glass reinforced plastic pipe of the present invention has the following advantages compared with prior art：Using above-mentioned technical glass steel
Inner tube layer has excellent mechanical performance, adhesive property, toughness and good resistance to corrosion using bisphenol A type epoxy resin,
Polyamide curing agent compared to other curing agent can more effective reinforced epoxy shear strength and toughness.Simple epoxy
Resin cured matter is more crisp, and impact resistance and bending-resistant type are poor, and adding ethyl phthalate reduces its solidfied material fragility, improves its tough
Property；Add silane coupler can with reinforcing glass steel pipe ageing-resistant, water-fast, acid resistance material, strengthen its toughness and service life.
Add polyurethane and mica the wearability of resin cured matter with reinforcing glass steel pipe stability, can be improved, it is heat resistance, ageing-resistant
Performance in terms of property, chemicals-resistant.Polyurethane can also reduce the water imbibition of resin cured matter, improve compression strength and resistance to punching
Hitting property.Alundum (Al2O3), nanometer antimony-doped stannic oxide are added in internal layer can strengthen heat-proof quality and resistance to elevated temperatures.Burning into sand layer
Being mixed to prepare by silica, quartz sand, flyash and calcium carbonate can be with the rigidity and anti-pressure ability of reinforcing glass steel pipe, quartz
Sand uses proportioning of different sizes, glass reinforced plastic pipe is more preferably increased anti-pressure ability.After said structure, the intensity of itself
Increase, slows down corrosion, extends the service life of glass reinforced plastic pipe.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is a kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe structure chart of the embodiment of the present invention.
In accompanying drawing：1- outer layers；2- burnings into sand layer；3- ultraviolet resistant layers；4- internal layers.
【Embodiment】
Below in conjunction with the accompanying drawings and specific embodiment the invention will be further described.
Embodiment 1
A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe, including internal layer 4, ultraviolet resistant layer 3, burning into sand layer 2 and outer layer 1,
Ultraviolet resistant layer 3 is fixedly connected on the outer surface of internal layer 4；
Burning into sand layer 2 is fixedly connected on the outer surface of ultraviolet resistant layer 3；
Outer layer 1 is fixedly connected on burning into sand 2 outer surface of layer.
Further, the preparation method of internal layer 4 is：Meter takes following raw material to constitute by weight：Bisphenol A type epoxy resin
20-30 parts, 8 parts of polyamide curing agent, 1 part of silane coupler, 5 parts of ethyl phthalate, 1 part of alundum (Al2O3), nano antimony doped dioxy
Change 0.1 part of tin, 8 parts of 1 part of polyurethane and mica, using above-mentioned raw materials it is well mixed as lamination material by polyester film, glass fibers dimension table
Face felt and glass fibre knitting carpet veneer are pressed into internal layer 4.Burning into sand layer 2 is counted by following raw material by weight：0 part of silica 1,
25 parts of quartz sand, the 6 parts of adhesions of 3 parts of flyash and calcium carbonate are formed, and are made up of unsaturated polyester resin as adhesion agent.Outer layer 1
By surface of polyester felt and furane resins by weight 1:9 compositions.Ultraviolet resistant layer 3 is made up of glass fibre.
Further, the particle grades of the quartz sand are according to the following ratio：
The quartz sand particle of granulometric range 20-30 mesh, quality accounting is 50%；
The quartz sand particle of granulometric range 40-50 mesh, quality accounting is 20%；
The quartz sand particle of granulometric range 60-70 mesh, quality accounting is 15%；
The quartz sand particle of granulometric range 100-150 mesh, quality accounting is 15%.
Embodiment 2
A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe, including internal layer 4, ultraviolet resistant layer 3, burning into sand layer 2 and outer layer 1,
Ultraviolet resistant layer 3 is fixedly connected on the outer surface of internal layer 4；
Burning into sand layer 2 is fixedly connected on the outer surface of ultraviolet resistant layer 3；
Outer layer 1 is fixedly connected on burning into sand 2 outer surface of layer.
Further, the preparation method of internal layer 4 is：Meter takes following raw material to constitute by weight：Bisphenol A type epoxy resin 30
Part, 15 parts of polyamide curing agent, 3 parts of silane coupler, 7 parts of ethyl phthalate, 2 parts of alundum (Al2O3), nanometer antimony-doped stannic oxide
12 parts of 0.3 part, 2 parts of polyurethane and mica, using above-mentioned raw materials it is well mixed as lamination material by polyester film, fiberglass surfacing mat
Internal layer 4 is pressed into glass fibre knitting carpet veneer.Burning into sand layer 2 is counted by following raw material by weight：2 parts of silica 1, quartz
30 parts of sand, the 10 parts of adhesions of 6 parts of flyash and calcium carbonate are formed, and are made up of unsaturated polyester resin as adhesion agent.Outer layer 1 is by gathering
Ester surface felt and furane resins are by weight 1:9 compositions.Ultraviolet resistant layer 3 is made up of glass fibre.
Further, the particle grades of the quartz sand are according to the following ratio：
The quartz sand particle of granulometric range 20-30 mesh, quality accounting is 50%；
The quartz sand particle of granulometric range 40-50 mesh, quality accounting is 20%；
The quartz sand particle of granulometric range 60-70 mesh, quality accounting is 15%；
The quartz sand particle of granulometric range 100-150 mesh, quality accounting is 15%.
Embodiment 3
A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe, including internal layer 4, ultraviolet resistant layer 3, burning into sand layer 2 and outer layer 1,
Ultraviolet resistant layer 3 is fixedly connected on the outer surface of internal layer 4；
Burning into sand layer 2 is fixedly connected on the outer surface of ultraviolet resistant layer 3；
Outer layer 1 is fixedly connected on burning into sand 2 outer surface of layer.
Further, the preparation method of internal layer 4 is：Meter takes following raw material to constitute by weight：Bisphenol A type epoxy resin
20-30 parts, 10 parts of polyamide curing agent, 2 parts of silane coupler, 6 parts of ethyl phthalate, 1.5 parts of alundum (Al2O3), nano antimony doped two
9 parts of 0.2 part of tin oxide, 1.4 parts of polyurethane and mica, using above-mentioned raw materials it is well mixed as lamination material by polyester film, glass fibers
Dimension table face felt and glass fibre knitting carpet veneer are pressed into internal layer 4.Burning into sand layer 2 is counted by following raw material by weight：Silica
11 parts, 27 parts of quartz sand, the 8 parts of adhesions of 4 parts of flyash and calcium carbonate form, be made up of unsaturated polyester resin as adhesion agent.
Outer layer 1 is by surface of polyester felt and furane resins by weight 1:9 compositions.Ultraviolet resistant layer 3 is made up of glass fibre.
Further, the particle grades of the quartz sand are according to the following ratio：
The quartz sand particle of granulometric range 20-30 mesh, quality accounting is 50%；
The quartz sand particle of granulometric range 40-50 mesh, quality accounting is 20%；
The quartz sand particle of granulometric range 60-70 mesh, quality accounting is 15%；
The quartz sand particle of granulometric range 100-150 mesh, quality accounting is 15%.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited with this, i.e., according to
The equivalent changes and modifications that scope of the present invention patent and description are made, all should still belong to the model that patent of the present invention covers
In enclosing.
Claims (8)
1. a kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe, it is characterised in that：Including internal layer, ultraviolet resistant layer, burning into sand layer and outer layer,
The ultraviolet resistant layer is fixedly connected on internal layer outer surface；
The burning into sand layer is fixedly connected on ultraviolet resistant layer outer surface；
The outer layer is fixedly connected on burning into sand layer outer surface；
2. glass reinforced plastic pipe according to claim 1, it is characterised in that：The burning into sand layer is by silica, quartz sand, flyash
And calcium carbonate is mixed to prepare.
3. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 1, it is characterised in that：The outer layer by surface of polyester felt and
Furane resins are constituted.
4. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 1, it is characterised in that：The internal layer preparation method is：Press
Parts by weight meter takes following raw material to constitute：20-30 parts of bisphenol A type epoxy resin, 8-15 parts of polyamide curing agent, silane coupler
1-3 parts, 5-7 parts of ethyl phthalate, 1-2 parts of alundum (Al2O3), 0.1-0.3 parts of nanometer antimony-doped stannic oxide, 1-2 parts of polyurethane and cloud
It is female 8-12 parts, using above-mentioned raw materials it is well mixed as lamination material by polyester film, fiberglass surfacing mat and glass fibre knitting felt
Internal layer is made in lamination.
5. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 2, it is characterised in that：The burning into sand layer is counted by weight
By following raw material：0-12 parts of silica 1,25-30 parts of quartz sand, the 6-10 parts of adhesions of 3-6 parts of flyash and calcium carbonate are formed, by
Unsaturated polyester resin is used as adhesion agent.
6. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 3, it is characterised in that：The outer layer by surface of polyester felt and
Furane resins are by weight 1:9 compositions.
7. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 2, it is characterised in that：The particle grades of the quartz sand are pressed
Match below：
The quartz sand particle of granulometric range 20-30 mesh, quality accounting is 50%；
The quartz sand particle of granulometric range 40-50 mesh, quality accounting is 20%；
The quartz sand particle of granulometric range 60-70 mesh, quality accounting is 15%；
The quartz sand particle of granulometric range 100-150 mesh, quality accounting is 15%.
8. corrosion-resistant and high-temperature resistant glass reinforced plastic pipe according to claim 1, it is characterised in that：The ultraviolet resistant layer is by glass fibers
Dimension composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114609.5A CN107061874A (en) | 2017-02-28 | 2017-02-28 | A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114609.5A CN107061874A (en) | 2017-02-28 | 2017-02-28 | A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe |
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| Publication Number | Publication Date |
|---|---|
| CN107061874A true CN107061874A (en) | 2017-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710114609.5A Pending CN107061874A (en) | 2017-02-28 | 2017-02-28 | A kind of corrosion-resistant and high-temperature resistant glass reinforced plastic pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975041A (en) * | 2017-12-01 | 2018-05-01 | 华侨大学 | One kind is used for anchor pole corrosion-resistant casing bit and anchor pole anticorrosion construction method |
| CN108302284A (en) * | 2018-02-06 | 2018-07-20 | 中国石油工程建设有限公司华北分公司 | A kind of underground heat-insulated oil pipe and preparation method thereof |
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| CN1673595A (en) * | 2005-02-04 | 2005-09-28 | 连云港中复连众复合材料集团有限公司 | High-pressure glass fibre reinforced plastic pipe and producing technology thereof |
| CN102563227A (en) * | 2012-01-20 | 2012-07-11 | 郝振亚 | Dual-lining impermeable glass steel tube |
| CN102691831A (en) * | 2012-05-30 | 2012-09-26 | 浙江新世管道股份有限公司 | Sand pipe |
| CN102797916A (en) * | 2012-08-16 | 2012-11-28 | 广西盛世鸿霞玻璃钢制品有限公司 | Multilayer structure glass fiber reinforced plastic tube |
| CN103289313A (en) * | 2012-02-27 | 2013-09-11 | 河北华强科技开发有限公司 | Preparation method of improved glass fiber reinforced plastic material |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590691A (en) * | 1994-05-02 | 1997-01-07 | Itt Corporation | Extruded multiple plastic layer coating bonded to a metal tube |
| CN1673595A (en) * | 2005-02-04 | 2005-09-28 | 连云港中复连众复合材料集团有限公司 | High-pressure glass fibre reinforced plastic pipe and producing technology thereof |
| CN102563227A (en) * | 2012-01-20 | 2012-07-11 | 郝振亚 | Dual-lining impermeable glass steel tube |
| CN103289313A (en) * | 2012-02-27 | 2013-09-11 | 河北华强科技开发有限公司 | Preparation method of improved glass fiber reinforced plastic material |
| CN102691831A (en) * | 2012-05-30 | 2012-09-26 | 浙江新世管道股份有限公司 | Sand pipe |
| CN102797916A (en) * | 2012-08-16 | 2012-11-28 | 广西盛世鸿霞玻璃钢制品有限公司 | Multilayer structure glass fiber reinforced plastic tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975041A (en) * | 2017-12-01 | 2018-05-01 | 华侨大学 | One kind is used for anchor pole corrosion-resistant casing bit and anchor pole anticorrosion construction method |
| CN107975041B (en) * | 2017-12-01 | 2023-05-26 | 华侨大学 | Sleeve device for anchor rod corrosion prevention and anchor rod corrosion prevention construction method |
| CN108302284A (en) * | 2018-02-06 | 2018-07-20 | 中国石油工程建设有限公司华北分公司 | A kind of underground heat-insulated oil pipe and preparation method thereof |
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Application publication date: 20170818 |
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