CN115195211A - Cable sheath pipe and preparation method thereof - Google Patents
Cable sheath pipe and preparation method thereof Download PDFInfo
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- CN115195211A CN115195211A CN202210639370.4A CN202210639370A CN115195211A CN 115195211 A CN115195211 A CN 115195211A CN 202210639370 A CN202210639370 A CN 202210639370A CN 115195211 A CN115195211 A CN 115195211A
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- fiber composite
- continuous fiber
- layer
- cable sheath
- wall layer
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- 239000002131 composite material Substances 0.000 claims abstract description 119
- 230000002787 reinforcement Effects 0.000 claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 229920001169 thermoplastic Polymers 0.000 claims description 30
- 239000004416 thermosoftening plastic Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 238000004804 winding Methods 0.000 claims description 11
- 229920005992 thermoplastic resin Polymers 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 238000013329 compounding Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000012943 hotmelt Substances 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
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- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
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- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims 1
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- 238000007906 compression Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000009412 basement excavation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2262/02—Synthetic macromolecular fibres
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Abstract
The invention discloses a cable sheath tube and a preparation method thereof. The cable sheath pipe comprises an outer wall layer, an inner wall layer and a structural body. The structural body is arranged between the outer wall layer and the inner wall layer and comprises a first continuous fiber composite reinforcing layer and a second continuous fiber composite reinforcing layer. The first continuous fiber composite enhancement layer is arranged around the central axis of the cable sheath pipe, and the extending direction of the fibers in the first continuous fiber composite enhancement layer and the radial plane of the cable sheath pipe form a first included angle. The second continuous fiber composite reinforcement layer is arranged around the central axis of the cable sheath pipe, the extending direction of the fibers in the second continuous fiber composite reinforcement layer is intersected with the radial plane to form a second included angle, and the second included angle is not equal to the first included angle. The cable sheath pipe disclosed by the invention has higher axial tensile property and radial compression resistance.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a cable protective sleeve and a preparation method thereof.
Background
The rise of composite pipes is due to the high strength and various functional properties of the pipes provided by the composite materials. In the field of power sheathing pipes, high-grade strength of sheathing pipes is required to cope with damage to cables and the like caused by external environments such as geology and the like.
In order to reduce the influence of construction on production and life, the future construction trend is to develop trenchless construction vigorously, and the electric power sheath pipeline for traction construction is an application mode adapting to the trend.
However, the existing protective sleeve has the defects of poor compression resistance and insufficient tensile strength, and is difficult to apply in the non-excavation field.
Therefore, there is a need for a cable sheathing tube and a method of making the same that at least partially solves the above problems.
Disclosure of Invention
A series of concepts in a simplified form are introduced in the summary section, which is described in further detail in the detailed description section. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, a first aspect of the present invention provides a cable sheathing tube, comprising:
an outer wall layer;
an inner wall layer located inside the outer wall layer;
a structure disposed between the outer wall layer and the inner wall layer, the structure comprising:
the first continuous fiber composite reinforcing layer is arranged around the central axis of the cable sheath pipe, and the extending direction of the fibers in the first continuous fiber composite reinforcing layer forms a first included angle with the radial plane of the cable sheath pipe,
the second continuous fiber composite enhancement layer surrounds the central axis of the cable sheath pipe, the extending direction of the fibers in the second continuous fiber composite enhancement layer intersects with the radial plane to form a second included angle, and the second included angle is not equal to the first included angle.
The cable sheath pipe disclosed by the invention has higher axial tensile property and radial compression resistance.
Optionally, the first included angle is 85-95 °; and/or
The second included angle is less than or equal to 10 °.
Optionally, the first continuous fibre composite reinforcement layer and the second continuous fibre composite reinforcement layer are alternately nested.
Optionally, the structure includes two first continuous fiber composite reinforced layers and one second continuous fiber composite reinforced layer, wherein the two first continuous fiber composite reinforced layers are respectively connected to the inner wall layer and the outer wall layer, and the second continuous fiber composite reinforced layer is disposed between the two first continuous fiber composite reinforced layers.
Optionally, the outer wall layer comprises a first thermoplastic tape disposed around a central axis of the cable jacket tube and extending in a third included angle with the radial plane.
Optionally, the third included angle is 3-87 °.
Optionally, the inner wall layer comprises a second thermoplastic tape disposed around the central axis of the cable sheath tube, and an extending direction of the second thermoplastic tape intersects the radial plane at a fourth included angle.
Optionally, the fourth included angle is 3-87 °.
Optionally, the first continuous fiber composite reinforced layer and the second continuous fiber composite reinforced layer are formed by compounding a first resin and continuous fibers;
the outer wall layer and the inner wall layer are made of second resin;
wherein the first resin and the second resin are thermoplastic resins, and the first resin and the second resin are mutually soluble.
Optionally, the continuous fibers are selected from at least one of glass fibers, basalt fibers, carbon fibers, aramid fibers, and polyester fibers; and/or
The first resin and the second resin are the same and are selected from at least one of PP, PE, PA, POK and PET.
Optionally, the outer wall layer, the inner wall layer, the first continuous fiber composite reinforcement layer and the second continuous fiber composite reinforcement layer are compounded into a whole by hot melting.
A second aspect of the present invention provides a method for preparing a cable sheathing tube,
extruding a thermoplastic resin into a first thermoplastic belt by an extrusion device, and thermally melting and winding the first thermoplastic belt on the outer surface of a cylindrical die around the central axis of the cylindrical die and at an angle of 3-87 degrees with a radial plane to form an inner wall layer;
hot-melting and compounding a continuous fiber composite strip on the outer surface of the inner wall layer at an angle of 90 degrees between the fiber running direction and the radial plane to form a first continuous fiber composite reinforcing layer;
hot-melting and winding a continuous fiber composite strip on the outer surface of the first continuous fiber composite reinforcing layer at an angle of less than 10 degrees between the fiber running direction and the radial plane to form a second continuous fiber composite reinforcing layer;
hot-melting and compounding a continuous fiber composite strip on the outer surface of a second continuous fiber composite reinforcing layer at an angle of 90 degrees between the fiber running direction and the radial plane to form a second continuous fiber composite reinforcing layer;
extruding a thermoplastic resin through an extrusion apparatus into a second thermoplastic tape, hot melt winding the second thermoplastic tape around the central axis and at an angle of 3-87 ° to a radial plane around an outer surface of a second layer of the first continuous fiber composite reinforcement layer to form an outer wall layer.
The preparation method of the cable sheath tube provided by the invention has the similar technical effects as those of the cable sheath tube in the first aspect, is high in production efficiency, and is beneficial to continuous production.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
In the drawings:
fig. 1 is a partial perspective schematic view of a cable sheathing tube according to a preferred embodiment of the present invention.
Description of reference numerals:
100: cable sheath tube 110: inner wall layer
111: first thermoplastic strip 120: outer wall layer
121: second thermoplastic tape 130: structure body
131: first continuous fiber composite reinforcement layer 132: second continuous fiber composite reinforcement layer
α: first angle β: second included angle
γ: third angle δ: fourth included angle
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, a detailed description will be given in order to thoroughly understand the present invention. It is understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. It is apparent that the implementation of the embodiments of the invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component". It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings.
Referring to fig. 1, an aspect of the present invention provides a cable sheathing tube 100. It is constructed in a multi-layer structure. For example, this embodiment includes an inner wall layer 110, an outer wall layer 120, and a structure 130 therebetween. The structure 130 comprises a first continuous fibre composite reinforcement layer 131 and a second continuous fibre composite reinforcement layer 132 arranged in a nested arrangement.
The first continuous fiber composite reinforced layer 131 and the second continuous fiber composite reinforced layer 132 may be a tape or sheet in which the first resin and the continuous fiber are compounded. And the first continuous fiber composite reinforced layer 131 and the second continuous fiber composite reinforced layer 132 may be integrally connected to each other by hot melt compounding.
Wherein, the continuous fiber can be selected from at least one of glass fiber, basalt fiber, carbon fiber, aramid fiber and polyester fiber.
The first continuous fiber composite reinforcing layer 131 is disposed around the central axis of the cable sheathing tube 100, and the extending direction of the fibers in the first continuous fiber composite reinforcing layer 131 forms a first included angle α with the radial plane of the cable sheathing tube 100. The first angle alpha is preferably 85-95 deg..
More preferably, the first included angle α is 90 °. That is, the direction of extension of the fibers in the first continuous fiber composite reinforcement layer 131 is perpendicular to the radial plane of the cable jacket tube 100. In other words, the fiber orientation in the first continuous fiber composite reinforcement layer 131 is aligned with the axial direction. This can improve the tensile strength of the cable sheath 100.
The second continuous fiber composite reinforced layer 132 is disposed around the central axis of the cable sheath tube 100, and the extending direction of the fibers in the second continuous fiber composite reinforced layer 132 intersects with the radial plane to form a second included angle β, and the second included angle β is not equal to the first included angle α. Preferably, the second included angle β is less than or equal to 10 °, further preferably, the second included angle β may be a very small angle, such as 1 ° or 2 ° or the like. Thereby, the ring rigidity and the pressure resistance of the cable sheathing tube 100 may be improved.
The cable sheath tube 100 according to the present invention can have high axial tensile strength and radial compressive strength at the same time.
The structure 130 may be configured as a double-layer structure, such as a structure from outside to inside: a first continuous fiber composite reinforcement layer-a second continuous fiber composite reinforcement layer, or a second continuous fiber composite reinforcement layer-a first continuous fiber composite reinforcement layer.
Further, the structure 130 may have a three-layer structure or more. In this case, the first continuous fiber composite reinforced layer 131 and the second continuous fiber composite reinforced layer 132 are alternately nested.
Specifically, in the embodiment shown in fig. 1, the structural body 130 is constructed in a three-layer structure. Comprising two first continuous fibre composite reinforcement layers 131 and one second continuous fibre composite reinforcement layer 132. Wherein two first continuous fiber composite reinforced layers 131 are respectively connected with the inner wall layer 110 and the outer wall layer 120, and a second continuous fiber composite reinforced layer 132 is disposed between the two first continuous fiber composite reinforced layers 131.
That is, the structure 130 is constructed in a structure in which a first continuous fiber composite reinforced layer 131, a second continuous fiber composite reinforced layer 132, and the first continuous fiber composite reinforced layer 131 are nested from outside to inside.
In alternative embodiments, the structure 130 may also be configured from the outside to the inside in the following manner:
the second continuous fiber composite reinforced layer, the first continuous fiber composite reinforced layer and the second continuous fiber composite reinforced layer are in a three-layer nested structure.
The composite structure comprises a first continuous fiber composite reinforced layer, a second continuous fiber composite reinforced layer, a first continuous fiber composite reinforced layer and a multi-layer nested structure.
The structure comprises a first continuous fiber composite reinforced layer, a second continuous fiber composite reinforced layer, a first continuous fiber composite reinforced layer, a second continuous fiber composite reinforced layer and a multi-layer nesting structure in a style.
The structure of the nesting of the second continuous fiber composite reinforced layer, the first continuous fiber composite reinforced layer, the second continuous fiber composite reinforced layer and the second continuous fiber composite reinforced layer is a multi-layer nesting structure in a style.
A second continuous fiber composite reinforced layer, a first continuous fiber composite reinforced layer, a multi-layer nested structure in a mode.
With continued reference to fig. 1, both the outer wall layer 120 and the inner wall layer 110 are preferably wound and heat-set. For example, the outer wall layer 120 is formed by winding the first thermoplastic tape 111 around the central axis of the cable sheathing tube 100. Wherein the first thermoplastic strip 111 extends in a direction crossing the radial plane at a third angle y. Preferably, the third angle γ is 3-87 °. In other words, the first thermoplastic strip 111 has a wrap angle of 3-87 °.
The inner wall layer 110 is wound around the central axis of the cable sheathing tube 100 by a second thermoplastic tape 121. Wherein the second thermoplastic strip 121 extends at a fourth angle δ across the radial plane. Preferably, the fourth angle δ is 3-87 °. In other words, the winding angle of the second thermoplastic tape 121 is 3 to 87 °.
Wherein the first thermoplastic belt 111 and the second thermoplastic belt 121 may be extrusion-molded by a second resin extruder. Preferably, the second resin and the first resin are miscible. That is, the thermoplastic resin selected for the inner wall layer 110 and the outer wall layer 120 and the matrix resin in the first continuous fiber composite reinforced layer 131 and the second continuous fiber composite reinforced layer 132 are the same type of resin, so as to facilitate the integration by heat melting and improve the strength of the connection between the layers.
The first resin and the second resin are preferably the same resin, for example, at least one selected from PP, PE, PA, POK, and PET. Of course, other types of thermoplastic resins may be selected as long as the first resin and the second resin are mutually soluble.
The cable sheath pipe 100 is enhanced by the axial-diameter bidirectional continuous fiber through sheath pipe, has high strength, particularly high axial tensile strength, and can be particularly applied to trenchless traction sheath pipes.
Another aspect of the present invention further provides a method for preparing the cable sheathing tube 100.
Step 1: the thermoplastic resin (second resin) is extruded into the first thermoplastic belt 111 by the extrusion apparatus. The first thermoplastic tape 111 is wound around a cylindrical mold (core mold). The winding angle is 3-87 deg. Alternatively stated, the first thermoplastic strip 111 is at an angle of 3-87 degrees to the radial plane. And then heat-fused to form the inner wall layer 110.
Step 2: the continuous fiber composite tape (sheet) is heat-melt compounded at a 90 ° angle to the radial plane in the fiber orientation on the outer surface of the inner wall layer 110 to form a first continuous fiber composite reinforcement layer 131. For example, a continuous fiber composite tape (sheet) may be wrapped cylindrically around the inner wall layer 110 and heat-fused to the outer surface of the inner wall layer 110. Wherein the continuous fiber composite tape (sheet) may be a material with fiber orientation aligned with the tape length/width direction.
And step 3: a continuous fiber composite tape (sheet) is hot-melt wound around the outer surface of the first continuous fiber composite reinforcement layer 131 with the fiber orientation and radial plane at an angle of less than 10 °. In other words, the continuous fiber composite tape (sheet) may be wound around the outer surface of the first continuous fiber composite reinforcement layer 131 of newcastle in step 2 at a winding angle of 0-10 °. The continuous fiber composite tape (sheet) may be a material in which the fiber orientation is aligned with the tape length direction.
And 4, step 4: the continuous fiber composite tape (sheet) was heat-fused to the outer surface of the second continuous fiber composite reinforcement layer 132 at an angle of 90 ° between the fiber orientation and the radial plane to form a second first continuous fiber composite reinforcement layer 131. For example, the continuous fiber composite tape (sheet) may be wrapped cylindrically around the inner wall layer 110 and heat-fused to the outer surface of the first continuous fiber composite reinforcement layer 131 supported in step 3. Wherein the continuous fiber composite tape (sheet) may be a material with fiber orientation aligned with the tape length/width direction.
And 5: the thermoplastic resin (second resin) is extruded into the second thermoplastic belt 121 by the extrusion apparatus. The second thermoplastic tape 121 is wound around a cylindrical mold (core mold). The winding angle is 3-87 deg. Alternatively, the second thermoplastic strip 121 is angled at 3-87 degrees from the radial plane. The outer surface of the first continuous fiber composite reinforced layer 131 produced in step 4 is then heat-fused to form the outer wall layer 120.
The preparation method of the cable sheath tube 100 according to the present invention can achieve similar technical effects to those of the cable sheath tube 100 of the first aspect, and is high in production efficiency and beneficial to continuous production.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and the invention is not limited to the above embodiments, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the invention as claimed.
Claims (12)
1. A cable sheathing tube, comprising:
an outer wall layer;
an inner wall layer located inside the outer wall layer;
a structure disposed between the outer wall layer and the inner wall layer, the structure comprising:
the first continuous fiber composite reinforcing layer is arranged around the central axis of the cable sheath pipe, and the extending direction of the fibers in the first continuous fiber composite reinforcing layer forms a first included angle with the radial plane of the cable sheath pipe,
the second continuous fiber composite enhancement layer surrounds the central axis of the cable sheath pipe, the extending direction of the fibers in the second continuous fiber composite enhancement layer intersects with the radial plane to form a second included angle, and the second included angle is not equal to the first included angle.
2. The cable sheath tube according to claim 1,
the first included angle is 85-95 degrees; and/or
The second included angle is less than or equal to 10 °.
3. The cable sheathing tube according to claim 1, wherein the first continuous fiber composite reinforcing layer and the second continuous fiber composite reinforcing layer are alternately nested.
4. The cable jacket tube according to claim 1, wherein the structural body comprises two of the first continuous fiber composite reinforcement layers and one of the second continuous fiber composite reinforcement layers, wherein the two of the first continuous fiber composite reinforcement layers are respectively connected to the inner wall layer and the outer wall layer, and the second continuous fiber composite reinforcement layer is disposed between the two of the first continuous fiber composite reinforcement layers.
5. The cable sheath tube of claim 1, wherein the outer wall layer comprises a first thermoplastic band disposed about a central axis of the cable sheath tube and extending in a third included angle intersecting the radial plane.
6. The cable sheath of claim 5, wherein the third included angle is 3-87 °.
7. The cable jacket tube according to claim 1, wherein the inner wall layer comprises a second thermoplastic tape disposed about a central axis of the cable jacket tube, and wherein the second thermoplastic tape extends in a fourth angle intersecting the radial plane.
8. The cable sheath tube according to claim 7, wherein the fourth angle is 3-87 °.
9. The cable sheath tube according to any one of claims 1 to 8,
the first continuous fiber composite reinforcing layer and the second continuous fiber composite reinforcing layer are formed by compounding first resin and continuous fibers;
the outer wall layer and the inner wall layer are made of second resin;
wherein the first resin and the second resin are thermoplastic resins, and the first resin and the second resin are mutually soluble.
10. The cable sheathing tube according to claim 9,
the continuous fiber is selected from at least one of glass fiber, basalt fiber, carbon fiber, aramid fiber and polyester fiber; and/or
The first resin and the second resin are the same and are selected from at least one of PP, PE, PA, POK and PET.
11. The cable sheath tube according to any one of claims 1 to 8, wherein the outer wall layer, the inner wall layer, the first continuous fiber composite reinforcement layer and the second continuous fiber composite reinforcement layer are compounded into one body by heat fusion.
12. A preparation method of a cable sheath tube is characterized in that,
extruding a thermoplastic resin into a first thermoplastic belt by an extrusion device, and thermally melting and winding the first thermoplastic belt on the outer surface of a cylindrical die around the central axis of the cylindrical die and at an angle of 3-87 degrees with a radial plane to form an inner wall layer;
hot-melting and compounding a continuous fiber composite strip on the outer surface of the inner wall layer at an angle of 90 degrees between the fiber running direction and the radial plane to form a first continuous fiber composite reinforcing layer;
hot-melt winding a continuous fiber composite tape around the outer surface of the first layer of the first continuous fiber composite reinforcement layer at an angle of less than 10 ° with respect to the radial plane in the fiber running direction to form a second continuous fiber composite reinforcement layer;
hot-melt compounding a continuous fiber composite strip on the outer surface of a second continuous fiber composite reinforcing layer at an angle of 90 degrees between the fiber running direction and the radial plane to form a second layer of the first continuous fiber composite reinforcing layer;
and extruding the thermoplastic resin into a second thermoplastic belt by an extrusion device, and thermally melting and winding the second thermoplastic belt around the central axis and at an angle of 3-87 degrees with a radial plane on the outer surface of a second continuous fiber composite reinforced layer to form an outer wall layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639370.4A CN115195211A (en) | 2022-06-07 | 2022-06-07 | Cable sheath pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639370.4A CN115195211A (en) | 2022-06-07 | 2022-06-07 | Cable sheath pipe and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115195211A true CN115195211A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210639370.4A Pending CN115195211A (en) | 2022-06-07 | 2022-06-07 | Cable sheath pipe and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115195211A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979391A (en) * | 2017-05-12 | 2017-07-25 | 威海纳川管材有限公司 | A kind of non-adherent thermoplastic composite flexible pipe and its preparation technology |
| CN208185657U (en) * | 2018-04-26 | 2018-12-04 | 沧州明珠塑料股份有限公司 | A variety of continuous fiber mixing enhancing embedding cable flexible composite pipes of thermoplasticity are merged entirely |
| CN109291477A (en) * | 2018-09-29 | 2019-02-01 | 上海英泰塑胶股份有限公司 | Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof |
| CN212297983U (en) * | 2020-01-21 | 2021-01-05 | 青岛中集创赢复合材料科技有限公司 | High-pressure composite pipe and processing equipment thereof |
-
2022
- 2022-06-07 CN CN202210639370.4A patent/CN115195211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979391A (en) * | 2017-05-12 | 2017-07-25 | 威海纳川管材有限公司 | A kind of non-adherent thermoplastic composite flexible pipe and its preparation technology |
| CN208185657U (en) * | 2018-04-26 | 2018-12-04 | 沧州明珠塑料股份有限公司 | A variety of continuous fiber mixing enhancing embedding cable flexible composite pipes of thermoplasticity are merged entirely |
| CN109291477A (en) * | 2018-09-29 | 2019-02-01 | 上海英泰塑胶股份有限公司 | Two-way reinforced composite pipe of thermoplasticity continuous glass-fiber prepreg tape journal axle and preparation method thereof |
| CN212297983U (en) * | 2020-01-21 | 2021-01-05 | 青岛中集创赢复合材料科技有限公司 | High-pressure composite pipe and processing equipment thereof |
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