CN111775512A - High-strength composite material structure pipe and processing technology thereof - Google Patents
High-strength composite material structure pipe and processing technology thereof Download PDFInfo
- Publication number
- CN111775512A CN111775512A CN202010752246.XA CN202010752246A CN111775512A CN 111775512 A CN111775512 A CN 111775512A CN 202010752246 A CN202010752246 A CN 202010752246A CN 111775512 A CN111775512 A CN 111775512A
- Authority
- CN
- China
- Prior art keywords
- sliding
- semicircular
- pipe
- tubular body
- heating
- 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
Images
Classifications
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
-
- 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
-
- 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
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- 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 belongs to the technical field of pipe production, and particularly relates to a high-strength composite material structural pipe and a processing technology thereof, wherein the high-strength composite material structural pipe comprises a hollow tubular body, the tubular body comprises resin and fibers, and the fibers comprise at least one of glass fibers, carbon fibers and basalt fibers; the outer wall of the tubular body is provided with a plurality of outer convex strips distributed along the axial direction of the tubular body, and the inner wall of the tubular body is provided with a plurality of inner convex strips distributed along the axial direction of the tubular body. This scheme is through redesigning tubular product structure, and the tubular product of this scheme has the advantage of intensity and resin pipe concurrently, can be used as wire pole, light pole or advertising column.
Description
Technical Field
The invention belongs to the technical field of pipe production, and particularly relates to a high-strength composite material structure pipe and a processing technology thereof.
Background
Pole pieces such as telegraph poles, street lamp poles and advertising poles are mainly used outdoors, and the pole pieces have very high requirements on performances such as corrosion resistance, rust resistance and strength. The existing telegraph pole is generally made of concrete or pig iron and other materials, is troublesome to produce and manufacture, has large weight, volume and the like, and is inconvenient to install and transport. The existing street lamp poles, advertising poles and the like are usually made of galvanized pipes or stainless steel pipes, and the street lamp poles made of the galvanized pipes are low in cost, but are easy to rust, so that the appearance is not only influenced, but also the street lamp poles are required to be periodically maintained by consuming manpower and material resources; the street lamp pole made of the stainless steel pipe has the advantages of attractive appearance, no maintenance and the like, but has higher production cost.
The resin pipe has the characteristics of light weight, corrosion resistance, easy processing, convenient construction and the like, is widely applied to building engineering, and is mainly used as a tap water supply system pipe, a drainage, exhaust and pollution discharge sanitary pipe, an underground drainage pipe system, a rainwater pipe, a threading pipe for electric wire installation and assembly sleeve and the like of a house building. Although the resin tube has many advantages, the strength of the resin tube is relatively low, which greatly limits the application range of the resin tube, for example, the existing resin tube cannot be used as a telegraph pole, a light pole and an advertising pole.
Disclosure of Invention
The invention aims to provide a high-strength composite structural pipe, which aims to solve the problems that the existing resin pipe is low in strength and cannot be used as a telegraph pole, a light pole, an advertising pole and the like.
In order to achieve the purpose, the scheme of the invention is as follows: a high-strength composite material structural pipe comprises a hollow tubular body, wherein the tubular body comprises resin and fibers, and the fibers comprise at least one of glass fibers, carbon fibers and basalt fibers; the outer wall of the tubular body is provided with a plurality of outer convex strips distributed along the axial direction of the tubular body, and the inner wall of the tubular body is provided with a plurality of inner convex strips distributed along the axial direction of the tubular body.
The working principle and the beneficial effects of the scheme are as follows:
the tubular body comprises resin and fibers, and the glass fibers, the carbon fibers and the basalt fibers can improve the mechanical property of the tubular body to a certain extent and obviously enhance the strength of the pipe. The outer wall of the tubular body is provided with the outer convex strip, the inner wall of the tubular body is provided with the inner convex strip, and the outer convex strip and the inner convex strip have fixing and supporting functions on the tubular body and can enhance the strength of the tubular body. Through redesigning the tubular product structure, can strengthen the intensity of tubular product to make tubular product have the advantage of resin pipe concurrently, can be used as wire pole, light pole or advertising column.
Optionally, the inner convex strips are provided with 8 inner convex strips, and the 8 inner convex strips are uniformly distributed along the circumferential direction of the tubular body. In actual use, the 8 convex strips are arranged and uniformly distributed, so that the overall strength of the tubular body can be greatly improved.
Optionally, the resin is an unsaturated polyester resin. The unsaturated polyester resin has excellent process performance, can be cured at room temperature and molded under normal pressure, has flexible process performance, has good comprehensive performance after being cured, and is suitable for being selected.
The scheme also provides a processing technology of the high-strength composite material structure pipe, which comprises the following steps:
(1) coating a fiber cloth layer on the surface of the core mold; the outer wall of the core mold is provided with a plurality of strip-shaped grooves which are uniformly distributed along the circumferential direction of the core mold;
(2) winding the fiber thread impregnated with the resin slurry along the surface of the core mold in a reciprocating manner to wind the fiber thread on the fiber cloth layer; the resin slurry comprises unsaturated polyester resin, an initiator, a curing agent and a release agent;
(3) wrapping a fiber cloth layer on the surface of the fiber wire after winding the fiber wire to obtain a crude product; the fiber cloth layer comprises at least one of a glass fiber layer, a carbon fiber layer and a basalt fiber layer;
(4) drying the crude product by using a heating mould, and fixing and forming the primary finished product to obtain a primary finished product; the heating mould comprises a heating device and two symmetrically arranged semicircular modules, the sections of the semicircular modules are semicircular rings, and arc-shaped concave cavities capable of being attached to the outer wall of the pipe are formed in the semicircular modules; the inner wall of the semicircular module is provided with a plurality of moving grooves, and the moving grooves slide in the moving grooves and are connected with pressing strips in a sealing mode; the semicircular module is provided with a control mechanism capable of controlling the pressing bar to move in the moving groove;
(5) and (4) pulling the primary finished product to move forwards, separating the primary finished product from the core mold, heating the mold, and cutting the primary finished product into required length to obtain the high-strength composite material structural pipe.
When the process is used for processing the pipe, the resin slurry impregnated on the fiber lines can gradually permeate into the fiber cloth on the inner layer and the outer layer, so that the fiber cloth and the fiber lines can be well fixed into a whole. Set up the bar groove on the outer wall of mandrel, during processing tubular product, resin infiltration fibre cloth permeates the bar groove in gradually permeating, and the bar groove is filled up with the resin, and the resin solidification back, the resin forms interior sand grip in the bar groove, and the formation of interior sand grip has fixed, the effect of support to tubular product, can strengthen the bulk strength of tubular product.
And after the crude product is obtained by processing, starting a heating device, and heating the heating mould by the heating device. The arc-shaped concave cavities of the two semi-circle modules are gradually close to the outer wall of the crude product, finally the two semi-circle modules are completely embraced and encircle the circumferential surface of the crude product, the crude product is completely placed in the arc-shaped concave cavities, and the heating mold transfers the heat of the heating device to the crude product to heat the crude product. While the semi-circle module is clasped and the crude product is heated, the pressing strip gradually extends out of the moving groove through the control mechanism and extrudes the crude product, so that the connection between fibers is more compact, and a good whole body can be formed between the fibers; the batten also extrudes excess resin adhered to the fibers. Because stretching out of layering, can form sunken draw-in groove between the inner wall of adjacent layering and semicircle module, in the unnecessary resin extruded by the layering can flow to the draw-in groove, the draw-in groove is filled to the resin, after the heating mould is accomplished the heating of crude product, makes two semicircle module separation, the resin solidification on the fibre this moment, can solidify into wholly between the fibre, and the resin on the draw-in groove also solidifies into outer sand grip simultaneously, and the formation of outer sand grip can further strengthen the bulk strength of tubular product. In this scheme, when utilizing the heating mould heating crude, the heating module is except enabling the resin solidification, concreties the fibre for the whole, still extrudees the crude through the layering, makes the connection between the fibre compacter, increases the intensity of product, still utilizes the draw-in groove that adjacent layering formed simultaneously for the resin that extrudes can be filled the draw-in groove and form outer sand grip, further strengthens the intensity of product.
Optionally, the control mechanism comprises a sliding block and sliding chutes formed in the left side and the right side of the semicircular module, the sliding block is connected in the sliding chutes in a sliding and sealing manner, and elastic parts for enabling the sliding block to extend out of the sliding chutes are arranged in the sliding chutes; a runner is connected between the two sliding grooves and is communicated with each moving groove; and hydraulic oil is filled in the sliding groove, the moving groove and the flow channel. When the slide block is not under the action of external force, the slide block can extend out of the slide groove under the action of the elastic piece. When the two semicircular modules are held, the sliding blocks on the two semicircular modules are contacted with each other, the sliding blocks are stressed to retract into the sliding grooves gradually, hydraulic oil in the sliding grooves gradually flows into the moving grooves through the flow channels, the pressing strips gradually extend outwards, and the extended pressing strips can extrude a crude product. When the semicircular modules are separated, the sliding blocks and the pressing strips can restore to the original positions under the action of the elastic pieces due to the loss of the action of the external force. So set up, control semicircle module motion can make control mechanism synchronous working, does not need to control alone, and the operation is simpler.
Optionally, a first limiting groove communicated with the moving groove is formed in the semicircular module, and a first protrusion connected in the first limiting groove in a sliding manner is arranged on the pressing bar; the semicircular module is also provided with a second limiting groove communicated with the sliding groove, and the sliding block is provided with a second bulge connected in the second limiting groove in a sliding manner. The first limiting groove and the second limiting groove have guiding and limiting effects on the movement of the pressing strip and the sliding block, so that the movement of the pressing strip and the sliding block can better meet the actual requirements.
Optionally, the resilient member is a compression spring. The compression spring can keep a stretching state when not being affected by external force, so that the sliding block can extend out of the sliding groove; and exert pressure to compression spring, enable compression spring compression, make the slider retract in the spout, select compression spring to meet the demands as the elastic component.
Optionally, a rubber layer is arranged on the side of the sliding block away from the sliding groove. When two semicircle modules embrace, the slider on two semicircle modules contacts each other, sets up the effort that produces when the rubber pad can contact between the buffering slider, avoids the production of noise.
Optionally, be equipped with an oil storage section of thick bamboo on the semicircle module, be equipped with on the oil storage section of thick bamboo and advance oil pipe and arrange oil pipe, advance oil pipe and arrange oil pipe all with the runner intercommunication, advance to be equipped with the pressure valve on the oil pipe, arrange oil pipe and be equipped with the valve. The volume of the resin of adhesion and the degree of compactness of fibre winding all are different on the different former finished products of heating mould heating, consequently when extrudeing the former finished product through the layering, the extension length of layering probably has the difference, when the extension length that the layering needs is shorter, the slider can not retract in the spout completely, leads to two semicircle modules can not the complete cohesion, has the gap, and the resin on the former finished product flows and can form the resin strip that does not need in the gap, influences the outward appearance of product, reduces the product quality. Set up an oil storage cylinder on the semicircle module, even if the extension length that the layering needs is shorter, continue to apply the effort to the semicircle module, make two semicircle modules be close to each other, the hydraulic oil in the spout is continued to the slider, make the pressure increase in the runner, when the default of pressure valve is increased to pressure, the pressure valve is opened, unnecessary hydraulic oil can get into in the oil storage cylinder through advancing oil pipe in the spout, make in the slider can the withdrawal spout completely, ensure that two semicircle modules can embrace completely. After the two semicircular modules are separated, the valve can be opened, hydraulic oil in the oil storage cylinder can flow back to the sliding groove, and sufficient hydraulic oil in the sliding groove is ensured.
Optionally, the heating device comprises a communication column, an upper plunger fixed to one of the semicircular modules slides in one side of the communication column and is connected in a sealing manner, and a lower plunger fixed to the other semicircular module slides in the other side of the communication column and is connected in a sealing manner; the upper plunger and the lower plunger are both provided with a channel communicated with the communicating column, and the semicircular module is internally provided with a heating oil duct communicated with the channel; heating oil and an electric heating wire are filled in the communicating column; the communicating column is provided with a sliding cylinder, and the sliding cylinder slides in the sliding cylinder and is connected with a piston in a sealing way.
When the heating module is needed to heat the crude product, the electric heating wire is started, and the heating oil is heated through the electric heating wire. The movement of the piston is controlled, the piston extrudes the heating oil in the sliding cylinder, and the upper plunger and the lower plunger both move towards one side of the crude product under the driving of the heating oil, so that the semi-circular module embraces the crude product. Heating oil in the communicating column can flow into a heating oil duct in the semicircular module through the channel, the heating oil transfers heat to the semicircular module through the heating oil duct, and the semicircular module heats a crude product when the crude product is embraced. In the scheme, the two semicircular modules can be controlled to move simultaneously by operating the movement of the piston, so that the operation is simple; when the piston moves, the heating oil flows among the sliding cylinder, the communication column, the channel and the heating oil duct, so that the electric heating wires can uniformly heat the heating oil, the uniformity of heat transfer of the heating oil is ensured, the semicircular module can be uniformly heated, and the uniformity of heating of a crude product in the semicircular module is further ensured.
Drawings
Fig. 1 is a cross-sectional view of a high-strength composite structural pipe in a top view according to an embodiment of the present invention;
FIG. 2 is a front sectional view of a heating mold according to an embodiment of the present invention;
fig. 3 is a front sectional view of a heating mold according to a second embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the oil-gas separating device comprises a tubular body 10, an outer convex strip 11, an inner convex strip 12, a semicircular module 20, a flow channel 21, a moving groove 22, a first limiting groove 23, a heating oil channel 24, an oil storage cylinder 30, an oil inlet pipe 31, a pressure valve 311, an oil discharge pipe 32, a valve 321, a sliding block 40, a second protrusion 41, a second limiting groove 42, a sliding groove 43, an elastic piece 44, a pressing strip 50, a first protrusion 51, an arc-shaped concave cavity 60, a sliding cylinder 70, a piston 71, a communicating column 80, an upper plunger 81, a channel 811 and a lower plunger 82.
Example one
A high-strength composite material structure pipe comprises a hollow tubular body 10 as shown in figure 1, wherein the tubular body 10 comprises resin and fibers, in the embodiment, the resin is unsaturated polyester resin, the unsaturated polyester resin has excellent process performance, can be cured at room temperature and molded under normal pressure, the process performance is flexible, the comprehensive performance of the cured resin is good, and the unsaturated polyester resin is suitable for use. The fiber comprises at least one of glass fiber, carbon fiber and basalt fiber, and during actual production, proper fiber is selected according to requirements. The outer wall of the tubular body 10 is provided with a plurality of outer convex strips 11 distributed along the axial direction of the tubular body 10, the outer convex strips 11 are integrally formed with the tubular body 10, and in the embodiment, the outer convex strips 11 are provided with 8 strips. The inner wall of the tubular body 10 is provided with a plurality of inner convex strips 12 distributed along the axial direction of the tubular body 10, and the inner convex strips 12 and the tubular body 10 are integrally formed. The inner convex strips 12 are 8, and the 8 inner convex strips 12 are uniformly distributed along the circumferential direction of the tubular body 10.
The embodiment also provides a processing technology of the high-strength composite material structure pipe, which comprises the following steps:
(1) coating a fiber cloth layer on the surface of the core mold; the outer wall of the core mold used in this embodiment is provided with 8 strip-shaped grooves uniformly distributed along the circumferential direction of the core mold.
(2) The fiber yarn impregnated with the resin slurry is wound around the fiber cloth layer by being wound back and forth along the surface of the core mold. The resin slurry in this embodiment includes an unsaturated polyester resin, an initiator, a curing agent, and a release agent.
(3) And (3) winding the fiber wire, and then coating a fiber cloth layer on the surface of the fiber wire to obtain a crude product. The fiber cloth layer in the step (1) and the step comprises at least one of a glass fiber layer, a carbon fiber layer and a basalt fiber layer, and proper fibers are selected according to actual production requirements.
(4) And drying the crude product by using a heating mould, and fixing and forming the primary finished product to obtain the primary finished product.
(5) And (4) pulling the primary finished product to move forwards, separating the primary finished product from the core mold, heating the mold, and cutting the primary finished product into required length to obtain the high-strength composite material structural pipe.
As shown in fig. 2, the heating mold used in step (4) comprises a heating device and two symmetrically arranged semicircular modules 20, wherein the sections of the semicircular modules 20 are semicircular rings; an arc-shaped concave cavity 60 is formed in each semicircular module 20, the arc-shaped concave cavities 60 can be attached to the outer wall of the pipe, and the arc-shaped concave cavities 60 of the two semicircular modules 20 are arranged oppositely. The inner wall of the semicircular module 20 is provided with a plurality of moving grooves 22 distributed along the circumferential direction of the semicircular module 20, a single moving groove 22 is distributed along the axial direction of the pipe, and a pressing strip 50 is connected in the moving groove 22 in a sliding and sealing manner. The semicircular module 20 is further provided with a first limiting groove 23 communicated with the moving groove 22, and the pressing strip 50 is fixed with a first protrusion 51 which is slidably connected in the first limiting groove 23.
The semicircular module 20 is provided with a control mechanism capable of controlling the pressing bar 50 to move in the moving groove 22, the control mechanism comprises a sliding block 40 and sliding grooves 43 arranged on the left side and the right side of the semicircular module 20, and the sliding grooves 43 on the two semicircular modules 20 are arranged oppositely. The sliding block 40 is connected in the sliding groove 43 in a sliding and sealing manner, the semicircular module 20 is further provided with a second limiting groove 42 communicated with the sliding groove 43, and the sliding block 40 is fixed with a second protrusion 41 connected in the second limiting groove 42 in a sliding manner. The sliding slot 43 is provided with an elastic member 44, in this embodiment, the elastic member 44 is a compression spring, one end of the compression spring is connected to the sliding block 40, and the other end is connected to the inner wall of the sliding slot 43. The compression spring can keep a stretching state when not being affected by external force, so that the slide block 40 can extend out of the sliding groove 43, at the moment, the pressing strip 50 is completely retracted into the moving groove 22, and one side of the pressing strip 50 can be flush with the inner wall of the semicircular module 20; pressure is applied to the compression spring which compresses the slide 40 to retract it into the slot 43.
A flow passage 21 is connected between the two sliding grooves 43, the flow passage 21 is communicated with each moving groove 22, and the sliding grooves 43, the moving grooves 22 and the flow passage 21 are filled with hydraulic oil. A rubber layer (not shown) is adhered to the side of the slider 40 remote from the slide groove 43.
An oil storage cylinder 30 is fixedly mounted on the semicircular module 20, an oil inlet pipe 31 and an oil discharge pipe 32 are connected to the oil storage cylinder 30, and both the oil inlet pipe 31 and the oil discharge pipe 32 are communicated with the flow passage 21. The oil inlet pipe 31 is provided with a pressure valve 311, and when the pressure in the flow passage 21 increases to a preset value of the pressure valve 311, the pressure valve 311 is automatically opened, and the hydraulic oil in the flow passage 21 can flow into the oil storage cylinder 30. A valve 321 is installed on the drain pipe 32, and when the hydraulic oil in the oil storage cylinder 30 needs to be returned to the flow passage 21, the valve 321 can be directly opened.
When the process is used for processing the pipe, the resin slurry impregnated on the fiber lines can gradually permeate into the fiber cloth on the inner layer and the outer layer, so that the fiber cloth and the fiber lines can be well fixed into a whole. And a strip-shaped groove is formed in the outer wall of the core mold, when the pipe is processed, resin permeates the fiber cloth and gradually permeates into the strip-shaped groove, and the strip-shaped groove is filled with the resin. After the resin is cured, the resin can form an inner convex strip 12 in the strip-shaped groove, the arrangement of the inner convex strip 12 has the fixing and supporting effects on the pipe, and the overall strength of the pipe can be enhanced.
And after the crude product is obtained by processing, starting a heating device, and heating the heating mould by the heating device. The arc-shaped concave cavities 60 of the two semi-circle modules 20 are gradually close to the outer wall of the crude product, finally, the two semi-circle modules 20 are completely embraced and surround the circumferential surface of the crude product, the crude product is completely placed in the arc-shaped concave cavities 60 at the moment, and the heating mold transfers the heat of the heating device to the crude product to heat the crude product. In the process of locking the two semicircular modules 20 together, the sliding blocks 40 on the two semicircular modules 20 contact with each other, the sliding blocks 40 are gradually retracted into the sliding groove 43 under stress, hydraulic oil in the sliding groove 43 gradually flows into the moving groove 22 through the flow passage 21, so that the pressing strip 50 gradually extends outwards, and the extended pressing strip 50 can extrude a crude product. If the slide block 40 does not retract into the slide groove 43 when the pressing strip 50 extends to the extreme position, at this time, the two semicircular modules 20 continue to approach each other, the slide block 40 continues to extrude the hydraulic oil in the slide groove 43, so that the pressure intensity in the flow passage 21 is increased, when the pressure intensity is increased to the preset value of the pressure valve 311, the pressure valve 311 is opened, and the redundant hydraulic oil in the slide groove 43 can enter the oil storage cylinder 30 through the oil inlet pipe 31, so that the slide block 40 can fully retract into the slide groove 43, and the two semicircular modules 20 can be completely clasped. When the pressing strip 50 extrudes the crude product, the connection between the fibers is more compact, and a good whole body can be formed between the fibers; the bead 50 also extrudes excess resin from the fibers. Due to the fact that the pressing strips 50 extend out, a concave clamping groove can be formed between the adjacent pressing strips 50 and the inner wall of the semicircular module 20, redundant resin extruded by the pressing strips 50 can flow into the clamping groove, and the clamping groove is filled with the resin. After the heating mould is accomplished the crude heating, make two semicircle module 20 separations, the resin solidification on the fibre this moment can solidify into wholly between the fibre, and the resin on the draw-in groove also solidifies into outer sand grip 11 simultaneously, and the formation of outer sand grip 11 can further strengthen the bulk strength of tubular product.
Example two
The present embodiment is different from the first embodiment in that: the present embodiment limits the specific structure of the heating device. As shown in fig. 3, the heating device includes a communication column 80, an upper plunger 81 is slidably and hermetically connected to an upper side of the communication column 80, and a lower end of the upper plunger 81 is welded to one of the semicircular modules 20; a lower plunger 82 is slidably and sealingly attached to the underside of the communication post 80, and the upper end of the lower plunger 82 is welded to the other half-round module 20. The upper plunger 81 and the lower plunger 82 are both provided with a channel 811, the channel 811 is communicated with the communication column 80, the semicircular module 20 is internally provided with a heating oil channel 24 communicated with the channel 811, and the heating oil channel 24 is communicated with the communication column 80 through the channel 811. The communication column 80 is filled with heating oil and is provided with an electric heating wire, so that the electric heating wire can work to heat the heating oil. The communication column 80 is connected with a slide cylinder 70, the slide cylinder 70 is communicated with the communication column 80, the slide cylinder 70 is connected with a piston 71 in a sliding and sealing way, and the piston 71 reciprocates along the inner wall of the slide cylinder 70, so that the heating oil in the communication column 80 can flow among the communication column 80, the slide cylinder 70, the channel 811 and the heating oil duct 24.
When the heating module is needed to heat the crude product, the electric heating wire is started, and the heating oil is heated through the electric heating wire. The movement of the piston 71 is controlled, so that the piston 71 extrudes the heating oil in the sliding cylinder 70, and the upper plunger 81 and the lower plunger 82 both move towards one side of the crude product under the driving of the heating oil, so that the semi-circular module 20 embraces the crude product. The heating oil in the connecting column 80 can flow into the heating oil duct 24 in the semicircular module 20 through the channel 811, the heating oil transfers heat to the semicircular module 20 through the heating oil duct 24, and the semicircular module 20 heats the crude product when embracing the crude product. In the scheme, the two semicircular modules 20 can be controlled to move simultaneously by operating the movement of the piston 71, so that the operation is simple; when the piston 71 moves, the heating oil flows among the sliding cylinder 70, the communicating column 80, the channel 811 and the heating oil passage 24, so that the electric heating wire can uniformly heat the heating oil, the uniformity of heat transfer of the heating oil is ensured, the semicircular module 20 can be uniformly heated, and the uniformity of heating of crude products in the semicircular module 20 is further ensured.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (10)
1. The utility model provides a high strength combined material structure tubular product which characterized in that: the composite material comprises a hollow tubular body, wherein the tubular body comprises resin and fibers, and the fibers comprise at least one of glass fibers, carbon fibers and basalt fibers; the outer wall of the tubular body is provided with a plurality of outer convex strips distributed along the axial direction of the tubular body, and the inner wall of the tubular body is provided with a plurality of inner convex strips distributed along the axial direction of the tubular body.
2. A high strength composite structural tubing as claimed in claim 1, wherein: the interior protruding strip is equipped with 8, and 8 interior protruding strips are along the circumference evenly distributed of tubulose body.
3. A high strength composite structural tubing as claimed in claim 2, wherein: the resin is an unsaturated polyester resin.
4. A processing technology of a high-strength composite material structure pipe is characterized by comprising the following steps: the method comprises the following steps:
(1) coating a fiber cloth layer on the surface of the core mold; the outer wall of the core mold is provided with a plurality of strip-shaped grooves which are uniformly distributed along the circumferential direction of the core mold;
(2) winding the fiber thread impregnated with the resin slurry along the surface of the core mold in a reciprocating manner to wind the fiber thread on the fiber cloth layer; the resin slurry comprises unsaturated polyester resin, an initiator, a curing agent and a release agent;
(3) wrapping a fiber cloth layer on the surface of the fiber wire after winding the fiber wire to obtain a crude product; the fiber cloth layer comprises at least one of a glass fiber layer, a carbon fiber layer and a basalt fiber layer;
(4) drying the crude product by using a heating mould, and fixing and forming the primary finished product to obtain a primary finished product; the heating mould comprises a heating device and two symmetrically arranged semicircular modules, the sections of the semicircular modules are semicircular rings, and arc-shaped concave cavities capable of being attached to the outer wall of the pipe are formed in the semicircular modules; the inner wall of the semicircular module is provided with a plurality of moving grooves, and the moving grooves slide in the moving grooves and are connected with pressing strips in a sealing mode; the semicircular module is provided with a control mechanism capable of controlling the pressing bar to move in the moving groove;
(5) and (4) pulling the primary finished product to move forwards, separating the primary finished product from the core mold, heating the mold, and cutting the primary finished product into required length to obtain the high-strength composite material structural pipe.
5. The processing technology of the high-strength composite material structural pipe material according to claim 4, characterized in that: the control mechanism comprises a sliding block and sliding chutes arranged on the left side and the right side of the semicircular module, the sliding block is connected in the sliding chutes in a sliding and sealing manner, and elastic parts for enabling the sliding block to extend out of the sliding chutes are arranged in the sliding chutes; a runner is connected between the two sliding grooves and is communicated with each moving groove; and hydraulic oil is filled in the sliding groove, the moving groove and the flow channel.
6. The processing technology of the high-strength composite material structural pipe material according to claim 5, characterized in that: the semicircular module is provided with a first limiting groove communicated with the moving groove, and the pressing strip is provided with a first bulge connected in the first limiting groove in a sliding manner; the semicircular module is also provided with a second limiting groove communicated with the sliding groove, and the sliding block is provided with a second bulge connected in the second limiting groove in a sliding manner.
7. The processing technology of the high-strength composite material structural pipe material according to claim 6, characterized in that: the elastic member is a compression spring.
8. The processing technology of the high-strength composite material structural pipe material according to claim 7, characterized in that: and a rubber layer is arranged on one side of the sliding block, which is far away from the sliding groove.
9. The processing technology of the high-strength composite material structural pipe material according to claim 8, characterized in that: an oil storage cylinder is arranged on the semicircular module, an oil inlet pipe and an oil discharge pipe are arranged on the oil storage cylinder, the oil inlet pipe and the oil discharge pipe are communicated with a flow channel, a pressure valve is arranged on the oil inlet pipe, and a valve is arranged on the oil discharge pipe.
10. The process for manufacturing a high-strength composite structural pipe according to any one of claims 5 to 9, wherein: the heating device comprises a communication column, an upper plunger fixed with one semicircular module is connected in a sliding and sealing manner in one side of the communication column, and a lower plunger fixed with the other semicircular module is connected in a sliding and sealing manner in the other side of the communication column; the upper plunger and the lower plunger are both provided with a channel communicated with the communicating column, and the semicircular module is internally provided with a heating oil duct communicated with the channel; heating oil and an electric heating wire are filled in the communicating column; the communicating column is provided with a sliding cylinder, and the sliding cylinder slides in the sliding cylinder and is connected with a piston in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752246.XA CN111775512B (en) | 2020-07-30 | 2020-07-30 | High-strength composite material structure pipe and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752246.XA CN111775512B (en) | 2020-07-30 | 2020-07-30 | High-strength composite material structure pipe and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111775512A true CN111775512A (en) | 2020-10-16 |
| CN111775512B CN111775512B (en) | 2022-06-24 |
Family
ID=72766981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010752246.XA Active CN111775512B (en) | 2020-07-30 | 2020-07-30 | High-strength composite material structure pipe and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111775512B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236564A1 (en) * | 2001-02-15 | 2002-09-04 | BPW Bergische Achsen Kommanditgesellschaft | Process for making components of fibre reinforced plastic |
| CN201062772Y (en) * | 2006-11-07 | 2008-05-21 | 李天佐 | Novel outdoor translucidus lamppost |
| CN102127986A (en) * | 2011-01-25 | 2011-07-20 | 深圳市吉凌复合材料科技股份有限公司 | Composite material transmission tower |
| CN202572757U (en) * | 2012-03-26 | 2012-12-05 | 安徽金日盛矿业有限责任公司 | Rapid repair mould for damage of pipeline |
| CN104723579A (en) * | 2015-04-13 | 2015-06-24 | 哈尔滨工业大学 | Assembling mold for all-composite corrugated sandwich cylindrical shells |
| CN204645795U (en) * | 2015-05-14 | 2015-09-16 | 江苏沃能电气科技有限公司 | A kind of composite material electric pole |
| CN105442901A (en) * | 2014-08-29 | 2016-03-30 | 胡广生 | Power transmission electric pole and manufacture method thereof |
| CN105625791A (en) * | 2016-03-04 | 2016-06-01 | 赵欣 | Coated composite material pole tower and manufacturing method thereof |
| CN107130833A (en) * | 2017-06-23 | 2017-09-05 | 云浮市欣粤电力器材有限公司 | Ageing-resistant glass fiber compound material electric pole |
| CN107283876A (en) * | 2017-08-01 | 2017-10-24 | 哈尔滨工业大学 | A kind of method for preparing fibre reinforced fold sandwich cylindrical shell |
| CN107916820A (en) * | 2017-10-27 | 2018-04-17 | 北京国网富达科技发展有限责任公司 | A kind of composite material pole tower used for transmission line and preparation method thereof |
-
2020
- 2020-07-30 CN CN202010752246.XA patent/CN111775512B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236564A1 (en) * | 2001-02-15 | 2002-09-04 | BPW Bergische Achsen Kommanditgesellschaft | Process for making components of fibre reinforced plastic |
| CN201062772Y (en) * | 2006-11-07 | 2008-05-21 | 李天佐 | Novel outdoor translucidus lamppost |
| CN102127986A (en) * | 2011-01-25 | 2011-07-20 | 深圳市吉凌复合材料科技股份有限公司 | Composite material transmission tower |
| CN202572757U (en) * | 2012-03-26 | 2012-12-05 | 安徽金日盛矿业有限责任公司 | Rapid repair mould for damage of pipeline |
| CN105442901A (en) * | 2014-08-29 | 2016-03-30 | 胡广生 | Power transmission electric pole and manufacture method thereof |
| CN104723579A (en) * | 2015-04-13 | 2015-06-24 | 哈尔滨工业大学 | Assembling mold for all-composite corrugated sandwich cylindrical shells |
| CN204645795U (en) * | 2015-05-14 | 2015-09-16 | 江苏沃能电气科技有限公司 | A kind of composite material electric pole |
| CN105625791A (en) * | 2016-03-04 | 2016-06-01 | 赵欣 | Coated composite material pole tower and manufacturing method thereof |
| CN107130833A (en) * | 2017-06-23 | 2017-09-05 | 云浮市欣粤电力器材有限公司 | Ageing-resistant glass fiber compound material electric pole |
| CN107283876A (en) * | 2017-08-01 | 2017-10-24 | 哈尔滨工业大学 | A kind of method for preparing fibre reinforced fold sandwich cylindrical shell |
| CN107916820A (en) * | 2017-10-27 | 2018-04-17 | 北京国网富达科技发展有限责任公司 | A kind of composite material pole tower used for transmission line and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111775512B (en) | 2022-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102218837B (en) | Glass reinforced plastic ribbed sand-included tube and manufacture method thereof | |
| CN102642314B (en) | Method for manufacturing conical composite rod | |
| CN102777708A (en) | Fiber-woven pultrusion pipeline and production method | |
| CN206796484U (en) | Cored wire clad structure for electric wire | |
| CN111775512B (en) | High-strength composite material structure pipe and processing technology thereof | |
| CN100564984C (en) | The method for restoring old pipe end head of inner lining glass fiber reinforced plastic by overturn connecting means | |
| CN1385296A (en) | Technological method for pultrusion of glass fibre reinforced plastics pipe and die thereof | |
| CN105150552B (en) | A kind of fiber reinforced thermoset plastics corrugated pipe production equipment and production technology | |
| CN2934834Y (en) | Glass fiber reinforced polypropene composite tube with reinforcement layer for cold and hot water | |
| CN1944036A (en) | Method for producing double spiral HDPE pipe | |
| CN101706022B (en) | Steel-plastic composite pipe manufacture method | |
| CN109027446B (en) | Hot-melt winding corrugated pipe of thermoplastic continuous fiber prepreg braided rope and manufacturing equipment thereof | |
| CN101462363B (en) | Method for manufacturing tube joint and manufacturing product thereof | |
| CN105189096A (en) | Device and method for infiltrating a fiber preform | |
| CN109537744A (en) | Airtight item of the hollow rubber of built-in steel spring and its preparation method and application | |
| CN104900346A (en) | Catenary-chain type cross-linked cable production die and production method | |
| CN101871566A (en) | Glass fiber-wound bamboo pulled and extruded bamboo-glass fiber reinforced plastic pipes and molding method | |
| CN211446554U (en) | Bridge joint structure is assembled in prefabricated of festival section | |
| RU2655273C1 (en) | Metal composite lighting pole and method of its production | |
| CN101463930A (en) | Corrugated continuous reinforced plastics heat-preserving composite pipe | |
| CN212372665U (en) | Thermal contraction double-wall sleeve adjusting-free extrusion die | |
| CN204663110U (en) | Bamboo is wound around composite electric support member | |
| CN205022010U (en) | Fiber reinforcement thermoset plastics bellows production facility | |
| CN112227730A (en) | Interactive device of numerical control tensioning equipment | |
| CN202118388U (en) | Non-adhesive type pultrusion composite pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |