CN116608335A - Continuously woven carbon fiber composite material oil pipe and preparation method thereof - Google Patents
Continuously woven carbon fiber composite material oil pipe and preparation method thereof Download PDFInfo
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- CN116608335A CN116608335A CN202310897256.6A CN202310897256A CN116608335A CN 116608335 A CN116608335 A CN 116608335A CN 202310897256 A CN202310897256 A CN 202310897256A CN 116608335 A CN116608335 A CN 116608335A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 86
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 86
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 93
- 238000000465 moulding Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000004026 adhesive bonding Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000010409 ironing Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000009941 weaving Methods 0.000 abstract description 17
- 239000000835 fiber Substances 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000002253 acid Substances 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 52
- 238000004804 winding Methods 0.000 description 15
- 239000003208 petroleum Substances 0.000 description 14
- 239000003365 glass fiber Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000009954 braiding Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/58—Applying the releasing agents
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
-
- 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
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Woven Fabrics (AREA)
Abstract
The invention belongs to the technical field of composite material manufacturing, and provides a continuous woven carbon fiber composite material oil pipe and a preparation method thereofThe continuous woven carbon fiber composite material oil pipe consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction; the left-hand yarn and the right-hand yarn are distributed symmetrically left and right around the axial yarn; the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers. According to the invention, the tubular material can be prepared by arranging the axial yarns, the left yarns and the right yarns and continuously weaving, and the adopted weaving structure is beneficial to controlling the processing damage of the carbon fiber, so that the abrasion and damage of the fiber are reduced; the continuous braided carbon fiber composite material oil pipe with light weight, high strength, no rust, corrosion resistance, low thermal expansion coefficient and long service life is obtained by taking carbon fiber as a raw material. The results of the examples show that the density of the continuous woven carbon fiber composite material oil pipe provided by the invention is 1.65g/cm 3 Acid and alkali resistance is better.
Description
Technical Field
The invention relates to the technical field of composite material manufacturing, in particular to a continuous woven carbon fiber composite material oil pipe and a preparation method thereof.
Background
The traditional oil pipe special for petroleum has the defects of large volume, heavier weight, difficult transportation, acid and alkali corrosion resistance, low wear resistance, shorter service life and higher operation cost. Moreover, the petroleum pipeline is a special oil pipe for conveying petroleum, the demand is large, along with the rapid development of automobile manufacturing and other industries related to petroleum, petroleum conveying is a main way for conveying petroleum in a long distance nowadays, and the demand for the petroleum pipeline is large, so in the petroleum conveying process, the cost of replacing the oil pipe caused by petroleum conveying is increased year by year, the reasons also comprise that along with the deepening of petroleum exploitation degree, the impurity contained in petroleum is gradually increased, the corrosion degree of the petroleum pipeline is gradually deepened, and the damage of the petroleum pipeline is accelerated. Thus, there is a need for a tubing material that is lightweight and corrosion resistant.
Disclosure of Invention
The invention aims to provide a continuous woven carbon fiber composite material oil pipe and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a continuous woven carbon fiber composite material oil pipe, which consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction; the left yarns and the right yarns are distributed symmetrically around the axial yarns;
the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers.
Preferably, the number of the axial yarns is 88-264.
Preferably, the number of the left yarns is 88-264, and the number of the right yarns is 88-264.
Preferably, the included angle between the left-direction yarns and the right-direction yarns and the axial yarns is ± (15-40 °).
The invention also provides a preparation method of the continuous woven carbon fiber composite material oil pipe, which comprises the following steps:
(1) Making the carbon fiber into tubular fabric;
(2) Sleeving the tubular fabric obtained in the step (1) on a forming mandrel, and then preheating and ironing the edge of the tubular fabric to obtain a preheated tubular fabric;
(3) And (3) sequentially performing gluing, taping, baking, demolding, taping, grinding, coating, cutting and packaging on the preheated tubular fabric obtained in the step (2) to obtain the continuous woven carbon fiber composite material oil pipe.
Preferably, the molding core mold in the step (2) is a hollow PVC pipe with the diameter of phi 30-35 mm; the length of the molding core mold is 5-15 m.
Preferably, the surface of the molding core in the step (2) is coated with a release agent and a resin adhesive.
Preferably, the tape film wound by the tape winding in the step (3) is a temperature-resistant plastic tape film; the temperature resistant range of the temperature resistant plastic tape film is 100-180 ℃.
Preferably, the baking temperature in the step (3) is 120-150 ℃, and the baking time is 1.2-2.5 h.
The invention provides a continuous woven carbon fiber composite material oil pipe, which consists of axial yarns, left yarns and right yarns; the axial yarnIs distributed along the axial direction; the left yarns and the right yarns are distributed symmetrically around the axial yarns; the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers. According to the invention, the tubular material can be prepared by arranging the axial yarns, the left yarns and the right yarns and continuously weaving, and the adopted weaving structure is beneficial to controlling the processing damage of the carbon fiber, so that the abrasion and damage of the fiber are reduced; the continuous braided carbon fiber composite material oil pipe with light weight, high strength, no rust, corrosion resistance, low thermal expansion coefficient and long service life is obtained by taking carbon fiber as a raw material. The results of the examples show that the density of the continuous woven carbon fiber composite material oil pipe provided by the invention is 1.65g/cm 3 The tensile strength is 750-850 MPa, the compressive strength is 320MPa, and the thermal expansion coefficient is 0.15X10 -5 And (K) the acid and alkali resistance is better.
Detailed Description
The invention provides a continuous woven carbon fiber composite material oil pipe, which consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction; the left yarns and the right yarns are distributed symmetrically around the axial yarns;
the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers.
The continuous woven carbon fiber composite material oil pipe provided by the invention consists of axial yarns, left yarns and right yarns. The tubular material can be prepared by arranging the axial yarns, the left yarns and the right yarns and continuously weaving, and the adopted weaving structure is beneficial to controlling the processing damage of the carbon fiber and reducing the abrasion and damage of the fiber.
In the present invention, the axial yarns are distributed in the axial direction. In the present invention, the number of axial yarns is preferably 88 to 264, more preferably 176.
In the present invention, the left and right yarns are symmetrically distributed around the axial yarn. In the invention, the part of the left yarns is preferably 88-264 yarns, more preferably 88 yarns; the number of right yarns is preferably 88 to 264, more preferably 176.
In the present invention, the angle between the left and right yarns and the axial yarn is preferably ± (15 to 40 °), and more preferably ± 30 °.
In the invention, the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers. According to the invention, carbon fibers are used as raw materials, the carbon fibers have high axial strength and modulus, no creep deformation, good fatigue resistance, low thermal expansion coefficient, good corrosion resistance, low fiber density and good X-ray permeability, and the continuous woven carbon fiber composite material oil pipe with light weight, high strength, no rust, corrosion resistance, low thermal expansion coefficient and long service life is obtained. In the present invention, the carbon fiber is preferably 12k carbon fiber. The source of the carbon fiber is not particularly limited, and commercially available products known to those skilled in the art may be used.
In the invention, the raw materials for preparing the continuous woven carbon fiber composite material oil pipe preferably further comprise glass fibers or polyester fibers. In the present invention, the mass ratio of the glass fiber or polyester fiber to the carbon fiber is preferably 50:50; the fineness of the glass fiber is preferably 2400tex; the fineness of the polyester fiber is preferably 800tex. The sources of the glass fiber and the polyester fiber are not particularly limited, and commercially available products known to those skilled in the art can be used.
In the invention, the diameter of the continuous woven carbon fiber composite material oil pipe is preferably 40-120 mm; the length of the continuous woven carbon fiber composite material oil pipe is preferably 5-15 m; the joint mode of the continuous woven carbon fiber composite material oil pipe is preferably threaded connection.
According to the invention, the tubular material can be prepared by arranging the axial yarns, the left yarns and the right yarns and continuously weaving, and the weaving structure is adopted, so that the processing damage of the carbon fiber can be controlled, and the abrasion and damage of the fiber can be reduced; the continuous braided carbon fiber composite material oil pipe with light weight, high strength, no rust, corrosion resistance, low thermal expansion coefficient and long service life is obtained by taking carbon fiber as a raw material.
The invention also provides a preparation method of the continuous woven carbon fiber composite material oil pipe, which comprises the following steps:
(1) Making the carbon fiber into tubular fabric;
(2) Sleeving the tubular fabric obtained in the step (1) on a forming mandrel, and then preheating and ironing the edge of the tubular fabric to obtain a preheated tubular fabric;
(3) And (3) sequentially performing gluing, taping, baking, demolding, taping, grinding, coating, cutting and packaging on the preheated tubular fabric obtained in the step (2) to obtain the continuous woven carbon fiber composite material oil pipe.
The invention prepares the carbon fiber into tubular fabric.
The method for preparing the tubular fabric is not particularly limited, and the tubular fabric can be prepared by methods known to those skilled in the art.
In the present invention, the tubular fabric preferably comprises a single layer tubular fabric or a multi-layer tubular fabric. The number of layers of the multilayer tubular fabric is not particularly limited, and the number of layers of the multilayer tubular fabric is determined according to the thickness of the required oil pipe.
The size of the tubular fabric is not particularly limited, and the tubular fabric can be determined according to the size of the required oil pipe.
After the tubular fabric is obtained, the tubular fabric is sleeved on a forming mandrel, and then the edge of the tubular fabric is preheated and flat-ironed to obtain the preheated tubular fabric. The invention ensures that the tubular fabric obtains prestress by preheating and ironing the edge of the tubular fabric.
In the invention, the forming mandrel is preferably a hollow PVC pipe with the diameter of 30-35 mm; the length of the molding core mold is preferably 5-15 m, more preferably 10-12 m. The invention has no special limitation on the size of the molding core mold, and the size of the molding core mold is determined according to the size of the required oil pipe.
In the present invention, the surface of the molding core is preferably coated with a release agent and a resin adhesive.
After the preheated tubular fabric is obtained, the tubular fabric is sequentially subjected to gluing, taping, baking, demolding, taping, grinding, coating, cutting and packaging, and the continuous woven carbon fiber composite material oil pipe is obtained.
The operations of gluing, taping, baking, demolding, taping, grinding, coating and cutting and packaging are not particularly limited, and the technical schemes of gluing, taping, baking, demolding, taping, grinding, coating and cutting and packaging, which are well known to those skilled in the art, are adopted.
In the present invention, when the tubular fabric is a multilayer tubular fabric, the rubberizing is preferably performed on each layer of fabric.
In the invention, the belt film wound by the winding belt is preferably a temperature-resistant plastic belt film; the temperature resistant range of the temperature resistant plastic tape film is preferably 100-180 ℃. In the invention, the winding belt plays a role in protection and shaping.
In the invention, the baking temperature is preferably 120-150 ℃; the baking time is preferably 1.2-2.5 hours, more preferably 1.5-2.0 hours; the baking apparatus is preferably an oven.
In the present invention, the coating is preferably performed by paint treatment.
The preparation method provided by the invention has low environmental pollution, and the raw materials for production can be reused, so that the preparation method has a wide market prospect.
The technical solutions of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A continuously woven carbon fiber composite material oil pipe consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction, and the left-direction yarns and the right-direction yarns are distributed around the axial yarns in a bilateral symmetry manner; the axial yarn has 88 parts, the left yarn has 88 parts, and the right yarn has 88 parts; the included angle between the left-direction yarn and the axial yarn is-30 degrees, and the included angle between the right-direction yarn and the axial yarn is +20 degrees;
the raw material for preparing the continuous woven carbon fiber composite material oil pipe is 12k carbon fiber;
the diameter of the continuous woven carbon fiber composite material oil pipe is 35mm, and the length is 10m; the joint mode of the continuous weaving carbon fiber composite oil pipe is threaded connection;
the preparation method comprises the following steps:
(1) Weaving: weaving 12k carbon fibers into a multi-layer circular tube fabric according to the tube diameter size of the required oil tube;
(2) And (3) core sheathing mold: coating resin glue on the surface of a molding core mold, beating a release agent, sleeving the multilayer circular tube fabric obtained in the step (1) on the molding core mold, and then preheating and ironing the edges of the multilayer tubular fabric to obtain a preheated multilayer circular tube fabric; the shaping mandrel is a hollow PVC pipe with the diameter of phi 30mm, and the length of the shaping mandrel is 10m;
(3) Gluing: carrying out gluing treatment on each layer of fabric until all the braiding layers are coated, and obtaining a glued multi-layer circular tube fabric;
(4) Winding a belt: winding a layer of temperature-resistant plastic belt film on the surface of the glued multi-layer circular tube fabric obtained in the step (3) to obtain the multi-layer circular tube fabric after winding; the temperature resistance of the temperature-resistant plastic tape film is 100 ℃;
(5) Baking: putting the multi-layer circular tube fabric obtained in the step (4) after winding into a baking oven for baking to obtain the baked multi-layer circular tube fabric; the baking temperature is 120 ℃, and the baking time is 1.5h;
(6) Demolding: drawing out the molding core mold in the baked multilayer circular tube fabric obtained in the step (5) to obtain a demoulded multilayer circular tube fabric;
(7) Stripping: removing the temperature-resistant plastic belt film on the surface of the demoulded multi-layer circular tube fabric obtained in the step (6) to obtain a multi-layer circular tube fabric after stripping;
(8) Grinding: grinding the surface of the stripped multi-layer circular tube fabric obtained in the step (7) to obtain a ground multi-layer circular tube fabric;
(9) Coating: performing paint treatment on the ground multi-layer circular tube fabric obtained in the step (8) to obtain a coated multi-layer circular tube fabric;
(10) Cutting and packaging: cutting the coated multi-layer circular tube fabric obtained in the step (9), and packaging and bundling to obtain the continuous woven carbon fiber composite material oil tube.
Example 2
A continuously woven carbon fiber composite material oil pipe consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction, and the left-direction yarns and the right-direction yarns are distributed around the axial yarns in a bilateral symmetry manner; the axial yarn has 88 parts, the left yarn has 88 parts, and the right yarn has 88 parts; the included angle between the left-direction yarn and the axial yarn is-30 degrees, and the included angle between the right-direction yarn and the axial yarn is +30 degrees;
the raw materials for preparing the continuous woven carbon fiber composite material oil pipe are 12k carbon fibers and 2400tex glass fibers; the mass ratio of the 12k carbon fiber to 2400tex glass fiber is 50:50;
the diameter of the continuous woven carbon fiber composite material oil pipe is 45mm, and the length is 11m; the joint mode of the continuous weaving carbon fiber composite oil pipe is threaded connection;
the preparation method comprises the following steps:
(1) Weaving: weaving 12k carbon fibers and 2400tex glass fibers into a multi-layer circular tube fabric according to the tube diameter size of the required oil tube;
(2) And (3) core sheathing mold: coating resin glue on the surface of a molding core mold, beating a release agent, sleeving the multilayer circular tube fabric obtained in the step (1) on the molding core mold, and then preheating and ironing the edges of the multilayer tubular fabric to obtain a preheated multilayer circular tube fabric; the molding core mold is a hollow PVC pipe with the diameter of phi 30mm, and the length of the molding core mold is 15m;
(3) Gluing: carrying out gluing treatment on each layer of fabric until all the braiding layers are coated, and obtaining a glued multi-layer circular tube fabric;
(4) Winding a belt: winding a layer of temperature-resistant plastic belt film on the surface of the glued multi-layer circular tube fabric obtained in the step (3) to obtain the multi-layer circular tube fabric after winding; the temperature resistance of the temperature-resistant plastic tape film is 100 ℃;
(5) Baking: putting the multi-layer circular tube fabric obtained in the step (4) after winding into a baking oven for baking to obtain the baked multi-layer circular tube fabric; the baking temperature is 120 ℃, and the baking time is 2 hours;
(6) Demolding: drawing out the molding core mold in the baked multilayer circular tube fabric obtained in the step (5) to obtain a demoulded multilayer circular tube fabric;
(7) Stripping: removing the temperature-resistant plastic belt film on the surface of the demoulded multi-layer circular tube fabric obtained in the step (6) to obtain a multi-layer circular tube fabric after stripping;
(8) Grinding: grinding the surface of the stripped multi-layer circular tube fabric obtained in the step (7) to obtain a ground multi-layer circular tube fabric;
(9) Coating: performing paint treatment on the ground multi-layer circular tube fabric obtained in the step (8) to obtain a coated multi-layer circular tube fabric;
(10) Cutting and packaging: cutting the coated multi-layer circular tube fabric obtained in the step (9), and packaging and bundling to obtain the continuous woven carbon fiber composite material oil tube.
Example 3
A continuously woven carbon fiber composite material oil pipe consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction, and the left-direction yarns and the right-direction yarns are distributed around the axial yarns in a bilateral symmetry manner; the axial yarn has 88 parts, the left yarn has 88 parts, and the right yarn has 176 parts; the included angle between the left-direction yarn and the axial yarn is-30 degrees, and the included angle between the right-direction yarn and the axial yarn is +35 degrees;
the diameter of the continuous woven carbon fiber composite material oil pipe is 35mm, and the length is 10m; the joint mode of the continuous weaving carbon fiber composite oil pipe is threaded connection;
the raw materials for preparing the continuous woven carbon fiber composite material oil pipe are 12k carbon fibers and 800tex polyester fibers; the mass ratio of the 12k carbon fiber to the 800tex polyester fiber is 50:50;
the preparation method comprises the following steps:
(1) Weaving: weaving 12k carbon fibers and 800tex polyester fibers into a multi-layer circular tube fabric according to the tube diameter size of the required oil tube;
(2) And (3) core sheathing mold: coating resin glue on the surface of a molding core mold, beating a release agent, sleeving the multilayer circular tube fabric obtained in the step (1) on the molding core mold, and then preheating and ironing the edges of the multilayer tubular fabric to obtain a preheated multilayer circular tube fabric; the shaping mandrel is a hollow PVC pipe with the diameter of phi 35mm, and the length of the shaping mandrel is 11m;
(3) Gluing: carrying out gluing treatment on each layer of fabric until all the braiding layers are coated, and obtaining a glued multi-layer circular tube fabric;
(4) Winding a belt: winding a layer of temperature-resistant plastic belt film on the surface of the glued multi-layer circular tube fabric obtained in the step (3) to obtain the multi-layer circular tube fabric after winding; the temperature resistance of the temperature-resistant plastic tape film is 100 ℃;
(5) Baking: putting the multi-layer circular tube fabric obtained in the step (4) after winding into a baking oven for baking to obtain the baked multi-layer circular tube fabric; the baking temperature is 120 ℃, and the baking time is 2.4 hours;
(6) Demolding: drawing out the molding core mold in the baked multilayer circular tube fabric obtained in the step (5) to obtain a demoulded multilayer circular tube fabric;
(7) Stripping: removing the temperature-resistant plastic belt film on the surface of the demoulded multi-layer circular tube fabric obtained in the step (6) to obtain a multi-layer circular tube fabric after stripping;
(8) Grinding: grinding the surface of the stripped multi-layer circular tube fabric obtained in the step (7) to obtain a ground multi-layer circular tube fabric;
(9) Coating: performing paint treatment on the ground multi-layer circular tube fabric obtained in the step (8) to obtain a coated multi-layer circular tube fabric;
(10) Cutting and packaging: cutting the coated multi-layer circular tube fabric obtained in the step (9), and packaging and bundling to obtain the continuous woven carbon fiber composite material oil tube.
The density, tensile strength, compressive strength, thermal expansion coefficient, acid resistance and alkali resistance of the continuously woven carbon fiber composite material oil pipe and the metal pipe in examples 1-3 are tested, and the test results are shown in Table 1; wherein the metal pipe is made of FD-5/8-1/8 of petroleum equipment Co., ltd.
Table 1 Performance of the continuously woven carbon fiber composite tubing and Metal tubing of examples 1-3
As can be seen from the above examples, the continuous woven carbon fiber composite material oil pipe provided by the invention has the advantages of light weight, high strength, rust resistance, corrosion resistance, low thermal expansion coefficient and long service life, and has the density of 1.65g/cm 3 The tensile strength is 750-850 MPa, the compressive strength is 320MPa, and the thermal expansion coefficient is 0.15X10 -5 And (K) acid and alkali resistance is excellent.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (9)
1. The continuous woven carbon fiber composite material oil pipe consists of axial yarns, left yarns and right yarns; the axial yarns are distributed along the axial direction; the left yarns and the right yarns are distributed symmetrically around the axial yarns;
the raw materials for preparing the continuous woven carbon fiber composite material oil pipe comprise carbon fibers.
2. The continuous woven carbon fiber composite oil pipe of claim 1, wherein the number of axial yarns is 88-264.
3. The continuous woven carbon fiber composite oil pipe of claim 1, wherein the number of left yarns is 88 to 264 and the number of right yarns is 88 to 264.
4. The continuous woven carbon fiber composite tubing of claim 1, wherein the left and right yarns are angled at ± (15-40 °) from the axial yarns.
5. The method for preparing the continuous woven carbon fiber composite material oil pipe according to any one of claims 1 to 4, comprising the following steps:
(1) Making the carbon fiber into tubular fabric;
(2) Sleeving the tubular fabric obtained in the step (1) on a forming mandrel, and then preheating and ironing the edge of the tubular fabric to obtain a preheated tubular fabric;
(3) And (3) sequentially performing gluing, taping, baking, demolding, taping, grinding, coating, cutting and packaging on the preheated tubular fabric obtained in the step (2) to obtain the continuous woven carbon fiber composite material oil pipe.
6. The method according to claim 5, wherein the molding core mold in the step (2) is a hollow PVC pipe with a diameter of 30-35 mm; the length of the molding core mold is 5-15 m.
7. The method according to claim 5 or 6, wherein the surface of the molding core in the step (2) is coated with a release agent and a resin paste.
8. The method according to claim 5, wherein the tape film wound by the tape in the step (3) is a heat-resistant plastic tape film; the temperature resistant range of the temperature resistant plastic tape film is 100-180 ℃.
9. The method according to claim 5, wherein the baking temperature in the step (3) is 120-150 ℃ and the baking time is 1.2-2.5 h.
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