CN105835345A - Filament winding process of epoxy glass reinforced plastic tee joint - Google Patents
Filament winding process of epoxy glass reinforced plastic tee joint Download PDFInfo
- Publication number
- CN105835345A CN105835345A CN201610342559.1A CN201610342559A CN105835345A CN 105835345 A CN105835345 A CN 105835345A CN 201610342559 A CN201610342559 A CN 201610342559A CN 105835345 A CN105835345 A CN 105835345A
- Authority
- CN
- China
- Prior art keywords
- threeway
- parts
- dimensional cloth
- arm
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a filament winding process of an epoxy glass reinforced plastic tee joint. The filament winding process of the epoxy glass reinforced plastic tee joint comprises the following steps of (1) preparation work; (2) burdening; (3) forming, specifically, (3.1) manufacturing of a lining layer, (3.2) manufacturing of a lining reinforcement layer and (3.3) manufacturing of a structural reinforcement layer; (4) curing; (5) demoulding; (6) post-curing and (7) detection. The epoxy glass reinforced plastic tee joint prepared through the filament winding process is good in quality and long in service life.
Description
Technical field
The present invention relates to the winding shaping process of fiber glass epoxy threeway.
Background technology
Winding shaping process is to be wound on core according to certain rule by the continuous fiber (or strap, prepegged strands) of dipped modified epoxy glue, the most cured, the demoulding, it is thus achieved that goods.And the winding shaping process of existing fiber glass epoxy threeway haves much room for improvement.
Summary of the invention
It is an object of the invention to provide the winding shaping process of a kind of fiber glass epoxy threeway, the fiber glass epoxy threeway quality that it is prepared is good, and service life is long.
For achieving the above object, the technical scheme is that the winding shaping process designing a kind of fiber glass epoxy threeway, comprise the steps:
1) preparation:
1.1) raw material and auxiliary material are got；Described raw material includes: modified epoxy, firming agent, diluent；Described auxiliary material includes: glass fiber yarn, three-dimensional cloth, surface felt；
1.2) checking whether raw material exceedes effect duration, color and luster is the most uniform, have free from admixture, with or without semigel bulk float；Check whether glass fiber yarn, three-dimensional cloth, surface felt make moist；
1.3) get three-way valve mold, die surface is processed clean, accomplish bright and clean impulse-free robustness, not damaged；Install a mold on Wiring apparatus, uniformly spread wax at die surface after fixedly securing, in order to the demoulding；If temperature is less than 10 DEG C, mould need to carry out preheating makes its surface temperature reach 45 ± 10 DEG C, then installs a mold on Wiring apparatus；
1.4) according to the concrete size of threeway, the three-dimensional cloth made needed for threeway is cut in advance, stand-by；
2) dispensing:
2.1) take 100 ± 1 part by weight modified epoxy resin, pour heating in heating bucket into；When ambient temperature is less than 15 DEG C, and heating barrel temperature controls at 70 ± 5 DEG C；When ambient temperature is higher than 15 DEG C, and heating barrel temperature controls at 50 ± 5 DEG C；
2.2) modified epoxy after heating is put into mixer, then put into 24 ± 0.5 weight portion firming agent and 0.1～0.3 parts by weight diluent, mixing and stirring, prepare compound stand-by；
3) molding:
3.1) inner liner makes: first brush deployed compound, then twisting surface felt on the main straight tube of three-way valve mold on three-way valve mold, then arm carries out cross winding, finally twisting surface felt on arm；
3.2) liner enhancement Layer makes: after inner liner completes, and is wound around 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns and wants uniformly to bellmouth, winding thickness on main straight tube, surface Shunping County；Mould is fallen to turn 90 degrees after completing by main straight tube liner enhancement Layer, then twines 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns equally on arm and wants uniformly to bellmouth, winding thickness, surface Shunping County；
3.3) structural reinforcement making:
3.3.1) first on main straight tube, carry out three-dimensional cloth winding, twine to bellmouth, surface Shunping County with scrap (bridge) half, be wound around after returning and cut off strap；On arm, it is wound around the three-dimensional cloth of infiltration compound again, cuts off behind return Shunping County；
3.3.2) the three-dimensional cloth of proper width be laid on the positive back side of three-way valve mold trigonum, the position of replaceable mould, and the three-dimensional cloth of the trigonum each lay suitable size on three-way valve mold both sides, until meeting thickness requirement；The most again at the rectangular three-dimensional cloth of each lay in trigonum one piece on mould both sides, the length of every piece of three-dimensional cloth enough to cover center and the position, trigonum that mould both sides supervisor is connected with arm；And during lay three-dimensional cloth, in advance three-dimensional cloth to be infiltrated compound；
3.3.3) adjust mould, arm is upward, the three-dimensional cloth of compound was infiltrated on around, with 4 strands of glass fiber yarns, arm is tied tight, both sides are formed on netted intersection by the tooth bar rod on flange end plate and compress trigonum, wipe unnecessary modified epoxy off, after trigonum is completely covered, cut off the glass fiber yarn hanging on tooth bar；
3.3.4) step 3.3.1 is repeated) to step 3.3.3), to reach thickness requirement；
3.3.5) turn mould, fix arm with fixture, in arm surface wrap glass fiber yarn, surface Shunping County, finally threeway surface clout is removed；
3.3.6) after winding terminates, equipment cleaning is clean；
4) solidification:
Threeway winding completed moves puts to curing oven, and solidification temperature is 90～120 DEG C, hardening time >=70 minute；
5) demoulding:
Threeway removal curing oven solidification completed, carries out the demoulding after natural cooling；First remove the blank flange of both mold ends, then dismantle the assembling die of the inside；
6) solidification afterwards:
Product after the demoulding to solidify after carrying out, and rear solidification temperature 130～140 DEG C, the time is not less than 150 minutes；
7) inspection:
Check and take off whether the threeway inner surface of mould deposits the Lou defect such as glue, if any then needing to carry out inspection reparation, place into product storage area stand-by.
Preferably, by weight, described modified epoxy is composed of the following components:
68 parts of epoxide modified epoxy resin of Bisphenol A Type,
14 parts of bisphenol F type epoxy modified epoxies,
9 parts of benzoxazine resin,
3.5 parts of short-chain fatty acid,
2.6 parts of vinyltrimethoxy silanes,
1.4 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.5 part N-Methyl pyrrolidone,
1.7 parts of sodium hexameta phosphate,
1.4 parts of pentaerythritol triacrylates,
1.6 parts of ethylene glycol monostearates.
Preferably, described firming agent selected from MDA, 4, one or more in 4'-DADPS, polyethylene polyamine.
Preferably, one or more in acetone, butanone, Ketohexamethylene, benzene,toluene,xylene, n-butyl alcohol, styrene of described diluent.
Advantages of the present invention and having the beneficial effects that: providing the winding shaping process of a kind of fiber glass epoxy threeway, the fiber glass epoxy threeway quality that it is prepared is good, and service life is long.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
The technical scheme that the present invention is embodied as is:
The winding shaping process of a kind of fiber glass epoxy threeway, comprises the steps:
1) preparation:
1.1) raw material and auxiliary material are got；Described raw material includes: modified epoxy, firming agent, diluent；Described auxiliary material includes: glass fiber yarn, three-dimensional cloth, surface felt；
1.2) checking whether raw material exceedes effect duration, color and luster is the most uniform, have free from admixture, with or without semigel bulk float；Check whether glass fiber yarn, three-dimensional cloth, surface felt make moist；
1.3) get three-way valve mold, die surface is processed clean, accomplish bright and clean impulse-free robustness, not damaged；Install a mold on Wiring apparatus, uniformly spread wax at die surface after fixedly securing, in order to the demoulding；If temperature is less than 10 DEG C, mould need to carry out preheating makes its surface temperature reach 45 ± 10 DEG C, then installs a mold on Wiring apparatus；
1.4) according to the concrete size of threeway, the three-dimensional cloth made needed for threeway is cut in advance, stand-by；
2) dispensing:
2.1) take 100 ± 1 part by weight modified epoxy resin, pour heating in heating bucket into；When ambient temperature is less than 15 DEG C, and heating barrel temperature controls at 70 ± 5 DEG C；When ambient temperature is higher than 15 DEG C, and heating barrel temperature controls at 50 ± 5 DEG C；
2.2) modified epoxy after heating is put into mixer, then put into 24 ± 0.5 weight portion firming agent and 0.1～0.3 parts by weight diluent, mixing and stirring, prepare compound stand-by；
3) molding:
3.1) inner liner makes: first brush deployed compound, then twisting surface felt on the main straight tube of three-way valve mold on three-way valve mold, then arm carries out cross winding, finally twisting surface felt on arm；
3.2) liner enhancement Layer makes: after inner liner completes, and is wound around 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns and wants uniformly to bellmouth, winding thickness on main straight tube, surface Shunping County；Mould is fallen to turn 90 degrees after completing by main straight tube liner enhancement Layer, then twines 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns equally on arm and wants uniformly to bellmouth, winding thickness, surface Shunping County；
3.3) structural reinforcement makes:
3.3.1) first on main straight tube, carry out three-dimensional cloth winding, twine to bellmouth, surface Shunping County with scrap (bridge) half, be wound around after returning and cut off strap；On arm, it is wound around the three-dimensional cloth of infiltration compound again, cuts off behind return Shunping County；
3.3.2) the three-dimensional cloth of proper width be laid on the positive back side of three-way valve mold trigonum, the position of replaceable mould, and the three-dimensional cloth of the trigonum each lay suitable size on three-way valve mold both sides, until meeting thickness requirement；The most again at the rectangular three-dimensional cloth of each lay in trigonum one piece on mould both sides, the length of every piece of three-dimensional cloth enough to cover center and the position, trigonum that mould both sides supervisor is connected with arm；And during lay three-dimensional cloth, in advance three-dimensional cloth to be infiltrated compound；
3.3.3) adjust mould, arm is upward, the three-dimensional cloth of compound was infiltrated on around, with 4 strands of glass fiber yarns, arm is tied tight, both sides are formed on netted intersection by the tooth bar rod on flange end plate and compress trigonum, wipe unnecessary modified epoxy off, after trigonum is completely covered, cut off the glass fiber yarn hanging on tooth bar；
3.3.4) step 3.3.1 is repeated) to step 3.3.3), to reach thickness requirement；
3.3.5) turn mould, fix arm with fixture, in arm surface wrap glass fiber yarn, surface Shunping County, finally threeway surface clout is removed；
3.3.6) after winding terminates, equipment cleaning is clean；
4) solidification:
Threeway winding completed moves puts to curing oven, and solidification temperature is 90～120 DEG C, hardening time >=70 minute；
5) demoulding:
Threeway removal curing oven solidification completed, carries out the demoulding after natural cooling；First remove the blank flange of both mold ends, then dismantle the assembling die of the inside；
6) solidification afterwards:
Product after the demoulding to solidify after carrying out, and rear solidification temperature 130～140 DEG C, the time is not less than 150 minutes；
7) inspection:
Check and take off whether the threeway inner surface of mould deposits the Lou defect such as glue, if any then needing to carry out inspection reparation, place into product storage area stand-by.
By weight, described modified epoxy is composed of the following components:
68 parts of epoxide modified epoxy resin of Bisphenol A Type,
14 parts of bisphenol F type epoxy modified epoxies,
9 parts of benzoxazine resin,
3.5 parts of short-chain fatty acid,
2.6 parts of vinyltrimethoxy silanes,
1.4 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.5 parts of N-Methyl pyrrolidone,
1.7 parts of sodium hexameta phosphate,
1.4 parts of pentaerythritol triacrylates,
1.6 parts of ethylene glycol monostearates.
One or more in MDA, 4,4' diaminodiphenyl sulfone, polyethylene polyamine of described firming agent.
One or more in acetone, butanone, Ketohexamethylene, benzene,toluene,xylene, n-butyl alcohol, styrene of described diluent.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. the winding shaping process of fiber glass epoxy threeway, it is characterised in that comprise the steps:
1) preparation:
1.1) raw material and auxiliary material are got；Described raw material includes: modified epoxy, firming agent, diluent；Described auxiliary material includes: glass fiber yarn, three-dimensional cloth, surface felt；
1.2) checking whether raw material exceedes effect duration, color and luster is the most uniform, have free from admixture, with or without semigel bulk float；Check whether glass fiber yarn, three-dimensional cloth, surface felt make moist；
1.3) get three-way valve mold, die surface is processed clean, accomplish bright and clean impulse-free robustness, not damaged；Install a mold on Wiring apparatus, uniformly spread wax at die surface after fixedly securing, in order to the demoulding；If temperature is less than 10 DEG C, mould need to carry out preheating makes its surface temperature reach 45 ± 10 DEG C, then installs a mold on Wiring apparatus；
1.4) according to the concrete size of threeway, the three-dimensional cloth made needed for threeway is cut in advance, stand-by；
2) dispensing:
2.1) take 100 ± 1 part by weight modified epoxy resin, pour heating in heating bucket into；When ambient temperature is less than 15 DEG C, and heating barrel temperature controls at 70 ± 5 DEG C；When ambient temperature is higher than 15 DEG C, and heating barrel temperature controls at 50 ± 5 DEG C；
2.2) modified epoxy after heating is put into mixer, then put into 24 ± 0.5 weight portion firming agent and 0.1～0.3 parts by weight diluent, mixing and stirring, prepare compound stand-by；
3) molding:
3.1) inner liner makes: first brush deployed compound, then twisting surface felt on the main straight tube of three-way valve mold on three-way valve mold, then arm carries out cross winding, finally twisting surface felt on arm；
3.2) liner enhancement Layer makes: after inner liner completes, and is wound around 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns and wants uniformly to bellmouth, winding thickness on main straight tube, surface Shunping County；Mould is fallen to turn 90 degrees after completing by main straight tube liner enhancement Layer, then twines 3～4mm thickness with 12～20 strands of glass fiber yarn composition row's yarns equally on arm and wants uniformly to bellmouth, winding thickness, surface Shunping County；
3.3) structural reinforcement makes:
3.3.1) first on main straight tube, carry out three-dimensional cloth winding, twine to bellmouth, surface Shunping County with scrap (bridge) half, be wound around after returning and cut off strap；On arm, it is wound around the three-dimensional cloth of infiltration compound again, cuts off behind return Shunping County；
3.3.2) the three-dimensional cloth of proper width be laid on the positive back side of three-way valve mold trigonum, the position of replaceable mould, and the three-dimensional cloth of the trigonum each lay suitable size on three-way valve mold both sides, until meeting thickness requirement；The most again at the rectangular three-dimensional cloth of each lay in trigonum one piece on mould both sides, the length of every piece of three-dimensional cloth enough to cover center and the position, trigonum that mould both sides supervisor is connected with arm；And during lay three-dimensional cloth, in advance three-dimensional cloth to be infiltrated compound；
3.3.3) adjust mould, arm is upward, the three-dimensional cloth of compound was infiltrated on around, with 4 strands of glass fiber yarns, arm is tied tight, both sides are formed on netted intersection by the tooth bar rod on flange end plate and compress trigonum, wipe unnecessary modified epoxy off, after trigonum is completely covered, cut off the glass fiber yarn hanging on tooth bar；
3.3.4) step 3.3.1 is repeated) to step 3.3.3), to reach thickness requirement；
3.3.5) turn mould, fix arm with fixture, in arm surface wrap glass fiber yarn, surface Shunping County, finally threeway surface clout is removed；
3.3.6) after winding terminates, equipment cleaning is clean；
4) solidification:
Threeway winding completed moves puts to curing oven, and solidification temperature is 90～120 DEG C, hardening time >=70 minute；
5) demoulding:
Threeway removal curing oven solidification completed, carries out the demoulding after natural cooling；First remove the blank flange of both mold ends, then dismantle the assembling die of the inside；
6) solidification afterwards:
Product after the demoulding to solidify after carrying out, and rear solidification temperature 130～140 DEG C, the time is not less than 150 minutes；
7) inspection:
Check and take off whether the threeway inner surface of mould deposits the Lou defect such as glue, if any then needing to carry out inspection reparation, place into product storage area stand-by.
The winding shaping process of fiber glass epoxy threeway the most according to claim 1, it is characterised in that by weight, described modified epoxy is composed of the following components:
68 parts of epoxide modified epoxy resin of Bisphenol A Type,
14 parts of bisphenol F type epoxy modified epoxies,
9 parts of benzoxazine resin,
3.5 parts of short-chain fatty acid,
2.6 parts of vinyltrimethoxy silanes,
1.4 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.5 parts of N-Methyl pyrrolidone,
1.7 parts of sodium hexameta phosphate,
1.4 parts of pentaerythritol triacrylates,
1.6 parts of ethylene glycol monostearates.
The winding shaping process of fiber glass epoxy threeway the most according to claim 2, it is characterised in that described firming agent selected from MDA, 4, one or more in 4'-DADPS, polyethylene polyamine.
The winding shaping process of fiber glass epoxy threeway the most according to claim 3, it is characterised in that one or more in acetone, butanone, Ketohexamethylene, benzene,toluene,xylene, n-butyl alcohol, styrene of described diluent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342559.1A CN105835345B (en) | 2016-05-23 | 2016-05-23 | The winding shaping process of fiber glass epoxy threeway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342559.1A CN105835345B (en) | 2016-05-23 | 2016-05-23 | The winding shaping process of fiber glass epoxy threeway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105835345A true CN105835345A (en) | 2016-08-10 |
| CN105835345B CN105835345B (en) | 2017-11-03 |
Family
ID=56593052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610342559.1A Active CN105835345B (en) | 2016-05-23 | 2016-05-23 | The winding shaping process of fiber glass epoxy threeway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105835345B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407344A (en) * | 2017-12-27 | 2018-08-17 | 渤海造船厂集团有限公司 | The production method of Marine GRP pipeline threeway |
| CN111410897A (en) * | 2020-04-24 | 2020-07-14 | 山东多驰工程技术有限公司 | Method for continuously manufacturing anti-corrosion inner lining layer on inner wall of metal pipeline on site |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102551A (en) * | 1987-04-30 | 1988-11-16 | 乔治费希尔股份公司 | Make the method and apparatus of the plastic mould of glass fibre enhancing |
| JPH04299125A (en) * | 1991-03-28 | 1992-10-22 | Sekisui Chem Co Ltd | Molding method of laminated pipe joint made of frp |
| EP0614751A1 (en) * | 1993-02-11 | 1994-09-14 | GECO SYSTEM S.p.A. | Method and apparatus for producing fusible junction fittings having an electric heating wire in a wall thereof |
| US20120090770A1 (en) * | 2009-01-22 | 2012-04-19 | Composite Atlantic Limited | Method for making composite parts having complex shapes |
| CN103032648A (en) * | 2012-12-20 | 2013-04-10 | 江西科得玻璃钢有限公司 | Glass reinforced plastic (GRP) trouser leg three-way pipe and manufacturing method thereof |
| CN105459412A (en) * | 2015-12-19 | 2016-04-06 | 胜利油田新大管业科技发展有限责任公司 | Fiber-wound glass fiber reinforced plastic pipe fitting manufacturing equipment and manufacturing process |
-
2016
- 2016-05-23 CN CN201610342559.1A patent/CN105835345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102551A (en) * | 1987-04-30 | 1988-11-16 | 乔治费希尔股份公司 | Make the method and apparatus of the plastic mould of glass fibre enhancing |
| JPH04299125A (en) * | 1991-03-28 | 1992-10-22 | Sekisui Chem Co Ltd | Molding method of laminated pipe joint made of frp |
| EP0614751A1 (en) * | 1993-02-11 | 1994-09-14 | GECO SYSTEM S.p.A. | Method and apparatus for producing fusible junction fittings having an electric heating wire in a wall thereof |
| US20120090770A1 (en) * | 2009-01-22 | 2012-04-19 | Composite Atlantic Limited | Method for making composite parts having complex shapes |
| CN103032648A (en) * | 2012-12-20 | 2013-04-10 | 江西科得玻璃钢有限公司 | Glass reinforced plastic (GRP) trouser leg three-way pipe and manufacturing method thereof |
| CN105459412A (en) * | 2015-12-19 | 2016-04-06 | 胜利油田新大管业科技发展有限责任公司 | Fiber-wound glass fiber reinforced plastic pipe fitting manufacturing equipment and manufacturing process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407344A (en) * | 2017-12-27 | 2018-08-17 | 渤海造船厂集团有限公司 | The production method of Marine GRP pipeline threeway |
| CN111410897A (en) * | 2020-04-24 | 2020-07-14 | 山东多驰工程技术有限公司 | Method for continuously manufacturing anti-corrosion inner lining layer on inner wall of metal pipeline on site |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105835345B (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2878038A (en) | Plastic pipe bend and method for making same | |
| CN104633378B (en) | Ultraviolet light solidification soft pipe lining old pipeline repairing technology | |
| CN104044277B (en) | The vacuum assisted resin transfer molding integral forming technique of composite fuel tank | |
| CN102675846B (en) | Glass fiber reinforced plastic lighting fixture shell and processing technology thereof | |
| CN105419229B (en) | A kind of hollow combined insulator winding pipe and preparation method thereof | |
| CN103817952B (en) | A kind of manufacture method of root of fan blade pre-embedded bolt set prefabricated component | |
| CN105835345A (en) | Filament winding process of epoxy glass reinforced plastic tee joint | |
| CN102279449A (en) | Basalt fiber optical cable reinforced core and manufacturing method thereof | |
| CN103225369A (en) | Fiber composite bar with surface having helicitic texture, and making method thereof | |
| JP2012240204A (en) | Concrete pipe having high durability, and method for manufacturing the same | |
| CN103707561B (en) | A kind of laminboard layer composite lamp stand and quick molding method thereof | |
| CN102069149A (en) | Fiber and sand core reinforced thereby | |
| CN101890816B (en) | Repairing method of glass fiber reinforced plastics products | |
| JPWO2016125666A1 (en) | Concrete reinforcement and concrete molded body | |
| CN103485570B (en) | Reinforced composite material shaft tower and preparation method thereof in a kind of | |
| US20080241446A1 (en) | Composite material and methods of filament winding, pultrusion and open molding that material | |
| CN105922606A (en) | Winding molding process of epoxy glass steel elbow | |
| DK163284B (en) | PROCEDURE FOR MANUFACTURING A PIPE PIECE | |
| CN102372912A (en) | Resin ingredient for producing glass reinforced plastic anchor stock, preparation method and preparation device thereof | |
| CN103899852B (en) | Reinforced plastic glass fibre pipe making method and reinforced plastic glass fibre pipe | |
| CN108864995A (en) | A kind of polyaxial composite bend and preparation method | |
| CN106273540A (en) | A kind of processing method of the buried RPM of heavy caliber | |
| JP2019073407A (en) | Glass roving, and manufacturing method of glass fiber-reinforced resin molding | |
| US3032842A (en) | Method of making a fusible metallic core with woven fiber sleeve | |
| CN208484260U (en) | A kind of FRP thin-walled electric pole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |