CN111996659B - Weaving method for manufacturing composite high-pressure pipeline by using basalt fibers - Google Patents
Weaving method for manufacturing composite high-pressure pipeline by using basalt fibers Download PDFInfo
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- CN111996659B CN111996659B CN202010784973.4A CN202010784973A CN111996659B CN 111996659 B CN111996659 B CN 111996659B CN 202010784973 A CN202010784973 A CN 202010784973A CN 111996659 B CN111996659 B CN 111996659B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
Abstract
The invention discloses a weaving method for manufacturing a composite high-pressure pipeline by basalt fibers, which comprises the steps of continuously conveying circular warp basalt fibers and elliptical weft basalt fibers to a weaving machine through a yarn withdrawing device, extending out of a pipeline mould through the weaving machine, placing a plurality of elliptical weft basalt fibers above the pipeline mould, placing the elliptical weft basalt fibers into a plurality of layers, sequentially passing the plurality of circular warp basalt fibers through elliptical weft basalt fibers on an upper layer and a lower layer in a staggered manner, connecting the plurality of layers of elliptical weft basalt fibers together through the plurality of circular warp basalt fibers, weaving the circular warp basalt fibers and the elliptical weft basalt fibers into a 2.5D circular tube woven fabric around the pipeline mould, solving the problem that the composite high-pressure pipe is difficult to bear high-pressure impact in the pipeline, causing wrinkling of the high pressure tube and thus causing a problem of bursting of the high pressure tube.
Description
Technical Field
The invention relates to a method, in particular to a weaving method for manufacturing a composite high-pressure pipeline by basalt fibers.
Background
The basalt fiber is a continuous fiber formed by drawing a volcanic raw material after being melted at a high temperature of 1500 ℃, and is called a green industrial raw material without pollution in the 21 st century and carbon fiber, aramid fiber and ultra-high molecular fiber as well as four high-tech fibers in China because the production process has no pollution and low energy consumption (only 1/16 of the energy consumption for producing the carbon fiber). Compared with carbon fibers and glass fibers, basalt fibers have three distinct advantages: low temperature and high temperature resistance (-269-700 ℃), and excellent mechanical properties can be still maintained in low temperature and high temperature environments; environmental friendliness: the basalt fiber does not generate harmful substances such as boron and other alkali metal oxides in the production process, overcomes the defect that the traditional glass fiber material generates harmful substances in the manufacturing process, can be automatically degraded into a soil matrix after being discarded, and has no pollution to the environment; the tensile strength of the good basalt fiber is equivalent to that of T300 carbon fiber, the price is only 1/8 or 1/6 of the carbon fiber, the mechanical property is generally 15% -20% higher than that of the common glass fiber, and the basalt fiber is one of high-performance fibers with the best comprehensive cost performance. On the other hand, the basalt ore in China is rich in resources and wide in material availability, and provides a raw material guarantee for the large-scale production of basalt fibers.
The traditional water supply and drainage pipelines and petrochemical pipelines in China mainly have the defects of large mass, easy leakage, easy corrosion, low construction speed and the like. Therefore, the exploration of a novel pipeline with excellent performance, green performance, safety and reliability is one of the problems which need to be solved urgently in water supply and drainage and petrochemical engineering, basalt fiber is taken as a novel high-performance fiber, relevant research is a hotspot of current domestic and foreign research, the influence of high temperature on the mechanical property of a basalt roving reinforced polymer plate is researched, compared with a glass fiber reinforced plate, the basalt reinforced polymer plate shows better mechanical tensile property and temperature resistance, but the composite high-pressure pipe manufactured by the existing basalt fiber is difficult to bear high-pressure impact in the pipeline due to the fact that the manufactured composite high-pressure pipe is difficult to bear through a two-dimensional weaving method, so that the high-pressure pipe is wrinkled, and further the high-pressure pipe is cracked.
Disclosure of Invention
The invention aims to solve the technical problems that the existing basalt fiber composite high-pressure pipe is difficult to bear high-pressure impact in a pipeline due to a two-dimensional weaving method, so that the high-pressure pipe is wrinkled and further the high-pressure pipe bursts.
The invention is realized by the following technical scheme:
the weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers is characterized by comprising the following steps of:
s1: conveying the basalt ore without impurities into a melting furnace, raising the temperature in the melting furnace to 1450-1500 ℃, and melting the basalt ore at the temperature of 1450-1500 ℃;
s2: after the high-temperature basalt melt liquid melted in the S1 is cooled for a period of time, the high-temperature basalt melt liquid is drawn into continuous circular warp basalt fibers and continuous elliptical weft basalt fibers through a drawing device;
s3: the circular warp basalt fibers and the elliptical weft basalt fibers in the S2 are continuously conveyed to a pipeline die extending out of a weaving machine through a yarn withdrawing device, then a plurality of elliptical weft basalt fibers are placed above the pipeline die, the elliptical weft basalt fibers are placed into a plurality of layers, the circular warp basalt fibers sequentially penetrate through the elliptical weft basalt fibers of the upper layer and the lower layer in a staggered mode, the elliptical weft basalt fibers are connected together through the circular warp basalt fibers, the circular warp basalt fibers and the elliptical weft basalt fibers are woven continuously around the pipeline die, and the circular warp basalt fibers and the weft basalt fibers are woven into 2.5D round tube woven fabrics through the weaving machine;
s4: taking down the pipeline mould in the S3, adding an adhesive to the 2.5D circular tube braided fabric, and finally taking down the 2.5D circular tube braided fabric from the pipeline mould;
s5: placing the 2.5D circular tube braided fabric taken down from the S4 into a forming die to manufacture a high-pressure tube;
s6: the high-pressure pipe manufactured by S5 is conveyed to a detection chamber, natural gas is continuously input into the high-pressure pipe to detect the pressure bearing range of the high-pressure pipe, and the axial tensile strength and the axial compression performance of the high-pressure pipe are tested by a testing device after the strength is detected.
The working principle of the invention is as follows: the existing basalt fiber manufactured composite high-pressure pipe is characterized in that basalt fibers which are mutually staggered in the radial direction are woven in a two-dimensional weaving method to obtain a basalt fiber pipeline, and the pipeline can bear the impact of high-pressure gas in the radial direction; through the basalt fiber pipeline of two-dimentional establishment, lack the axial basalt fiber with a plurality of layers of two-dimentional basalt fiber through connection for the basalt fiber pipeline of two-dimentional establishment lacks axial shock resistance, leads to the compound high-pressure pipe of preparation to be difficult to bear the high-pressure impact in the pipeline, leads to the high-pressure pipe to corrugate, and then causes the high-pressure pipe to burst. A weaving method for manufacturing a composite high-pressure pipeline by basalt fibers is provided at present, circular warp basalt fibers and elliptical weft basalt fibers are continuously conveyed to a weaving machine to extend out of a pipeline mould, a plurality of elliptical weft basalt fibers are placed above the pipeline mould, the elliptical weft basalt fibers are placed into a plurality of layers, then a plurality of circular warp basalt fibers sequentially penetrate through the elliptical weft basalt fibers of an upper layer and a lower layer in a staggered manner, the plurality of layers of elliptical weft basalt fibers are connected together through the plurality of circular warp basalt fibers, the weaving machine continuously weaves around the pipeline mould, the weaving machine weaves the circular warp basalt fibers and the elliptical weft basalt fibers into a 2.5D circular tube woven fabric, the 2.5D circular tube woven fabric is different from a two-dimensional circular tube woven fabric and is also different from a 3D three-dimensional circular woven fabric of yarns in three directions of x, y and z, the yarn in the pipe knitting is disposed along the longitude and latitude direction, the oval woof basalt fiber is along having certain thickness, be provided with the angle between oval woof basalt fiber and the circular warp basalt fiber, and then the interlaminar joint strength of 2.5D pipe knitting has been strengthened, run through a plurality of layers of circular warp basalt fiber through a plurality of oval woof basalt fiber, can improve axial mechanical properties, make 2.5D pipe knitting constitute an holistic connection, the yarn distributes along a plurality of directions in three-dimensional space, and the intercrossing is together, just so do not have the problem of "layer", thereby improved the performance of pipe knitting along axial direction, this pipeline can be used to make the reinforcement of main load structure spare and high performance finished piece. The performance of the 2.5D circular tube braided fabric can be improved through the reasonable design of the yarn structure, so that the braided elliptical weft basalt fiber and the circular warp basalt fiber, the distances distributed in the x, y and z directions can be adjusted, the mechanical property of the circular tube braided fabric can be adjusted by adjusting the fineness of the circular warp basalt fibers, the position of the elliptical weft basalt fibers and the number of layers of the circular tube braided fabric, further, the method for preparing the 2.5D basalt fiber round tube braided fabric by adopting the braiding machine and reinforcing the epoxy composite material is an effective method for preparing the basalt fiber reinforced composite material round tube with high mechanical property, the weaving method for manufacturing the composite high-pressure pipeline by the basalt fibers solves the problem that the composite high-pressure pipeline is difficult to bear high-pressure impact in the pipeline, so that the high-pressure pipeline is wrinkled, and further the high-pressure pipeline is cracked.
Furthermore, a weaving angle of 25-35 degrees is formed between the elliptical weft basalt fibers passing through the upper layer and the lower layer and the horizontal plane in a staggered manner by a plurality of circular warp basalt fibers. The angle between the basalt fiber of the oval weft yarn and the basalt fiber of the round warp yarn is set to enhance the stability between the basalt fiber of the oval weft yarn and the basalt fiber of the round warp yarn, so that the problem that the axial strength between the basalt fiber of the oval weft yarn and the basalt fiber of the round warp yarn is insufficient is avoided, and the braided circular tube braided fabric is convenient to enhance.
Furthermore, the length of the short diameter between the basalt fibers of the oval weft yarn is 2-3mm, the basalt fibers of the oval weft yarn have certain thickness by setting the length of the short diameter between the basalt fibers of the oval weft yarn, the basalt fibers of the oval weft yarn and the basalt fibers of the round warp yarn are stably connected, the interlayer connection strength of the 2.5D circular tube braided fabric is enhanced, and then a plurality of basalt fibers of the oval weft yarn penetrate through a plurality of layers of the basalt fibers of the round warp yarn to improve the axial mechanical property.
Furthermore, the circular warp basalt fibers penetrate through the elliptical weft basalt fibers on the upper layer and the lower layer to form a sine-shaped curve, the circular warp basalt fibers penetrate through the elliptical weft basalt fibers on the upper layer and the lower layer, so that the 2.5D circular tube braided fabric forms an integral connection, the yarns are distributed in a plurality of directions in a three-dimensional space and are interwoven and crossed together, the problem of 'layer' does not exist, and the connection between the elliptical weft basalt fibers and the circular warp basalt fibers is enhanced.
Further, the distance between adjacent circular warp basalt fibers is equal to 1-2mm along the axial direction of the oval weft basalt fibers. The distance between adjacent circular warp basalt fibers is set to enhance the radial connection between the circular warp basalt fibers, so that the 2.5D circular tube braided fabric formed by the circular warp basalt fibers can bear the radial impact of high-pressure gas.
Further, testing arrangement includes the base, and the base up end is connected with the triangle chuck, and the base up end still is connected with the fixing base, and the axis collineation of the axis of triangle chuck and fixing base connects the fixed column on the fixing base, is connected with the telescopic link on the fixed column, still is connected with the hydraulic pump of drive telescopic link motion on the fixing base, still is equipped with the controller on the base, hydraulic pump and controller electric connection. On placing the base with the high-pressure pipe of 2.5D pipe knitting, carry the one end of high-pressure pipe through the triangle chuck, the other end of high-pressure pipe aligns with the one end of telescopic link, comes the controller to drive the hydraulic pump motion. The telescopic link contacts with the other end of high-pressure pipe, through the continuous crowded high-pressure pipe of control telescopic link, tests the axial compression performance of high-pressure pipe.
Further, the telescopic link other end is connected with the extrusion dish, and extrusion dish one side is connected with first elasticity rope, and the first elasticity rope other end is connected with first locking clamp, and the extrusion dish opposite side is connected with second elasticity rope, and the second elasticity rope other end is connected with the second locking clamp. Through setting up the extrusion dish, test the not high-pressure pipe of equidimension, the first locking clamp that sets up presss from both sides the one side of pressing from both sides tight high-pressure pipe, and the second locking clamp presss from both sides the opposite side of pressing from both sides tight high-pressure pipe, through control shrink telescopic link, can test the axial tensile strength of high-pressure pipe, through setting up first elasticity rope, second elasticity rope, is convenient for press from both sides the high-pressure pipe of equidimension not.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers enables the 2.5D circular tube braided fabric to form an integral connection, yarns are distributed in a three-dimensional space along a plurality of directions and are interwoven and crossed together, so that the problem of 'layer' does not exist, the performance of the circular tube braided fabric along the axial direction is improved, and the method can be used for manufacturing a main bearing structural part and a reinforcement of a high-performance part;
2. according to the weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers, the performance of a 2.5D circular tube woven fabric is improved through reasonable design of a yarn structure, so that the distribution distances of the woven oval weft basalt fibers and the woven round warp basalt fibers in the directions of x, y and z can be adjusted, and the mechanical property of the circular tube woven fabric can be adjusted through adjusting the fineness of the round warp basalt fibers, the position of the oval weft basalt fibers and the number of layers of the circular tube woven fabric;
3. the invention relates to a weaving method for manufacturing a composite high-pressure pipeline by basalt fibers, which is an effective method for manufacturing a basalt fiber reinforced composite round pipe with high mechanical property by preparing a 2.5D basalt fiber round pipe woven fabric by adopting a weaving machine and reinforcing an epoxy composite material.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the testing device of the present invention.
Reference numbers and corresponding part names in the drawings:
1-round warp basalt fiber, 2-oval weft basalt fiber, 3-base, 4-triangular chuck, 5-fixed seat, 6-fixed column, 7-telescopic rod, 8-hydraulic pump, 9-controller, 10-extrusion disc, 11-first elastic rope, 12-first locking clamp, 13-second elastic rope and 14-second locking clamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, the weaving method of the basalt fiber composite high-pressure pipe of the invention, S1: conveying the basalt ore without impurities into a melting furnace, and melting the basalt ore by raising the temperature in the melting furnace to 1450-1500 ℃; s2: cooling the molten high-temperature basalt melt liquid melted in the step S1 for a period of time, and drawing the molten high-temperature basalt melt liquid into continuous circular warp basalt fibers 1 and continuous elliptical weft basalt fibers 2 through a drawing device; s3: the circular warp basalt fiber 1 and the elliptical weft basalt fiber 2 in the S2 are continuously conveyed to a pipeline mould extending out of a weaving machine through a yarn withdrawing device, then a plurality of elliptical weft basalt fibers 2 are placed above the pipeline mould, the elliptical weft basalt fibers 2 are placed into a plurality of layers, then the circular warp basalt fibers 2 sequentially penetrate through the elliptical weft basalt fibers 2 on the upper layer and the lower layer in a staggered mode, and the circular warp basalt fibers 1 are connected with the elliptical weft basalt fibers 2 together and are woven around the pipeline mould continuously. Weaving the circular warp basalt fiber 1 and the elliptical weft basalt fiber 1 into a 2.5D circular tube woven fabric through a weaving machine; s4: taking down the pipeline mould in the S3, adding an adhesive to the 2.5D circular tube braided fabric, and finally taking down the 2.5D circular tube braided fabric from the pipeline mould; s5: placing the 2.5D circular tube braided fabric taken down from the S4 into a forming die to manufacture a high-pressure tube; s6: the high-pressure pipe manufactured by S5 is conveyed to a detection chamber, natural gas is continuously input into the high-pressure pipe to detect the pressure bearing range of the high-pressure pipe, and after the detection is finished, the axial tensile strength and the axial compression performance of the high-pressure pipe are tested by a testing device.
The specific implementation mode of the invention is as follows: the conventional composite high-pressure pipe made of basalt fibers is characterized in that a two-dimensional high-pressure pipeline is woven by the basalt fibers through a two-dimensional weaving method, and the basalt fibers which are radially staggered mutually enable the basalt fiber pipeline which is woven in a two-dimensional way to bear the impact of high-pressure gas in the radial direction; however, the two-dimensional braided basalt fiber pipeline lacks axial basalt fibers which are used for penetrating and connecting a plurality of layers of two-dimensional basalt fibers, so that the two-dimensional braided basalt fiber pipeline lacks impact resistance in the axial direction, the manufactured composite high-pressure pipe is difficult to bear high-pressure impact in the pipeline, the high-pressure pipe is wrinkled, and further the high-pressure pipe is cracked. The prior weaving method for manufacturing the composite high-pressure pipeline by using the basalt fiber is characterized in that the basalt fiber of the round warp yarn and the basalt fiber of the oval weft yarn are continuously conveyed to a pipeline mould extending out of a weaving machine, a plurality of basalt fibers of the oval weft yarn are placed above the pipeline mould, and the elliptical weft basalt fibers are placed into a plurality of layers, a plurality of round warp basalt fibers sequentially cross and penetrate the elliptical weft basalt fibers at the upper layer and the lower layer, a plurality of layers of elliptical weft basalt fibers are connected together through a plurality of circular warp basalt fibers and are woven continuously around the pipeline mould, circular warp basalt fibers and elliptical weft basalt fibers are woven into a 2.5D circular tube woven fabric through a weaving machine, and the 2.5D circular tube woven fabric is different from a two-dimensional circular tube woven fabric and is also different from a 3D three-dimensional circular tube woven fabric of yarns in the directions of x, y and z.
The yarns in the circular tube braided fabric are configured along the longitude and latitude direction, the elliptical weft yarn basalt fiber edge has certain thickness, an angle is arranged between the elliptical weft yarn basalt fiber and the circular warp yarn basalt fiber, the interlayer connection strength of the 2.5D circular tube braided fabric is enhanced, the elliptical weft yarn basalt fiber penetrates through a plurality of layers of circular warp yarn basalt fiber, the axial mechanical property is further improved, the 2.5D circular tube braided fabric is further enabled to form an integral connection, the yarns are distributed along a plurality of directions in a three-dimensional space and are interwoven and crossed with one another, the problem of 'layer' is avoided, the performance of the circular tube braided fabric along the axial direction is improved, the circular tube braided fabric can be used for manufacturing a main bearing structural part and a reinforcement body of a high-performance part, the performance of the 2.5D circular tube braided fabric is improved through reasonable design of a yarn structure, and the braided elliptical weft yarn basalt fiber and the circular warp yarn basalt fiber are enabled to be combined with the circular warp yarn basalt fiber, the distances distributed in the directions of x, y and z are adjustable, the adjustment of the mechanical property of the circular tube braided fabric is achieved by adjusting the fineness of the circular warp basalt fibers, the position of the elliptical weft basalt fibers and the number of layers of the circular tube braided fabric, so that the 2.5D basalt fiber circular tube braided fabric is prepared by a braiding machine, the circular tube braided fabric is an effective method for preparing the basalt fiber reinforced composite circular tube with high mechanical property by reinforcing the epoxy composite material, and the problem that the high-pressure tube is wrinkled and further bursts due to the fact that the high-pressure tube is difficult to bear high-pressure impact in the pipeline is solved by the method for weaving the composite high-pressure pipeline made of the basalt fibers.
Example 2
Based on the embodiment 1, as shown in fig. 1, in the weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers, a plurality of round warp basalt fibers 1 cross and penetrate through the upper layer and the lower layer of the oval weft basalt fibers 2 to form a weaving angle with the horizontal plane, the weaving angle is 25-35 degrees, and the length of the minor diameter between the oval weft basalt fibers 2 is 2-3 mm.
The specific implementation mode of the invention is as follows: a plurality of round warp basalt fibers cross and penetrate through the upper layer and the lower layer of oval weft basalt fibers and form a weaving angle with the horizontal plane, the weaving angle is 25-35 degrees, the stability between the oval weft basalt fibers and the round warp basalt fibers is enhanced by setting the angle between the oval weft basalt fibers and the round warp basalt fibers, the axial strength between the oval weft basalt fibers and the round warp basalt fibers is further prevented from being insufficient, the woven round tube woven fabric is further enhanced conveniently, the short diameter length between the oval weft basalt fibers is 2-3mm, the short diameter length between the oval weft basalt fibers is set, the oval weft basalt fibers have a certain thickness, and the connection between the oval weft basalt fibers and the round warp basalt fibers is stable, and the interlayer connection strength of the 2.5D circular tube braided fabric is enhanced, and the axial mechanical property is improved by penetrating a plurality of layers of circular warp basalt fibers through a plurality of layers of elliptical weft basalt fibers.
Example 3
Based on the above embodiment, as shown in fig. 1, in the weaving method for manufacturing the composite high-pressure pipeline by using basalt fibers, circular warp basalt fibers 1 penetrate through elliptical weft basalt fibers 2 at the upper layer and the lower layer to form a sine-shaped curve, the distance between the adjacent circular warp basalt fibers 1 is equal along the axial direction of the elliptical weft basalt fibers 2, and the distance between the adjacent circular warp basalt fibers 1 is 1-2 mm.
The specific implementation mode of the invention is as follows: the round warp basalt fiber passes through the oval weft basalt fiber of the upper layer and the lower layer to form a sine-shaped curve, the round warp basalt fiber passes through the oval weft basalt fiber of the upper layer and the lower layer, so that the 2.5D circular tube braided fabric forms an integral connection, the yarns are distributed along a plurality of directions in a three-dimensional space, and are interwoven and crossed together, thus the problem of 'layer' is not existed, the connection between the basalt fiber of the elliptical weft yarn and the basalt fiber of the circular warp yarn is enhanced, along the axial direction of the basalt fiber of the elliptical weft yarn, the distance between the basalt fibers of the adjacent circular warp yarn is equal to 1-2mm, by setting the distance between the basalt fibers of the adjacent circular warp yarn, and further, the radial connection among the basalt fibers of the round warp yarns is enhanced, so that the 2.5D circular tube braided fabric formed by the basalt fibers of the round warp yarns can bear the radial impact of high-pressure gas.
Example 4
Based on the above embodiment, as shown in fig. 2, the weaving method for manufacturing the composite high-pressure pipeline by using the basalt fiber according to the present invention includes a base 3, the upper end surface of the base 3 is connected with a triangular chuck 4, the upper end surface of the base 3 is further connected with a fixed seat 5, the axis of the triangular chuck 4 is collinear with the axis of the fixed seat 5, the fixed seat 5 is connected with a fixed column 6, the fixed column 6 is connected with a telescopic rod 7, the fixed seat 5 is further connected with a hydraulic pump 8 for driving the telescopic rod 7 to move, the base 3 is further provided with a controller 9, the hydraulic pump 8 is electrically connected with the controller 9, the other end of the telescopic rod 7 is connected with an extrusion plate 10, one side of the extrusion plate 10 is connected with a first elastic rope 11, the other end of the first elastic rope 11 is connected with a first locking clamp 12, the other end of the extrusion plate 10 is connected with a second elastic rope 13, and the other end of the second elastic rope 13 is connected with a second locking clamp 14.
The specific implementation mode of the invention is as follows: the testing device comprises a base, wherein a triangular chuck is connected to the upper end face of the base, a fixing seat is further connected to the upper end face of the base, the axis of the triangular chuck and the axis of the fixing seat are collinear, a fixing column is connected to the fixing seat, a telescopic rod is connected to the fixing column, a hydraulic pump for driving the telescopic rod to move is further connected to the fixing seat, a controller is further arranged on the base, and the hydraulic pump is electrically connected with the controller. On placing the base with the high-pressure line of 2.5D pipe knitting, the one end of high-pressure line is cliied to the triangle chuck, aligns the other end of high-pressure line and the one end of telescopic link, drives the hydraulic pump motion through the controller for the telescopic link contacts with the other end of high-pressure line, controls the continuous crowded high-pressure line of telescopic link, is convenient for test the axial compression performance of high-pressure line. The telescopic link other end is connected with the extrusion dish, extrusion dish one side is connected with first elasticity rope, the first elasticity rope other end is connected with first locking clamp, the extrusion dish opposite side is connected with second elasticity rope, the second elasticity rope other end is connected with second locking clamp, through the extrusion dish that sets up, test the not high-pressure pipe of equidimension, one side of the tight high-pressure pipe of first locking clamp through setting up, the second locking clamp of setting presss from both sides the opposite side of pressing from both sides tight high-pressure pipe, through the shrink telescopic link, test the axial tensile strength of high-pressure pipe, through the first elasticity rope that sets up, second elasticity rope, be convenient for press from both sides the not high-pressure pipe of equidimension.
Comparative example 1
The comparative example is distinguished from example 1 by the following features: the basalt fibers are woven by a two-dimensional method, and the basalt fibers are woven by a three-dimensional method.
The weaving method of the embodiment 1 and the weaving method of the two-dimensional and three-dimensional basalt fiber in the comparative example 1 are adopted, 30 woven high-pressure pipes are respectively selected, the average value of the axial tensile strength is compared, and the comparison result is shown in the table 1:
TABLE 1
From table 1, it can be seen that the axial tensile strength of the 2.5D braided high-pressure pipe of the present invention is significantly superior to that of the high-pressure pipe braided by the braiding method of two-dimensional and three-dimensional basalt fibers.
Comparative example 2
The comparative example is distinguished from example 1 by the following features: the basalt fibers are woven by a two-dimensional method, and the basalt fibers are woven by a three-dimensional method.
The weaving method of the embodiment 1 and the weaving method of the two-dimensional and three-dimensional basalt fiber in the comparative example 1 are adopted, 30 woven high-pressure pipes are respectively selected, the average value of the axial compression performance is compared, and the comparison result is shown in the table 2:
TABLE 2
| Group of | Braiding angle (°) | Fiber volume content (%) | Compressive strength (kN) |
| Two-dimensional braided high-pressure pipe | 30 | 16.25 | 22.18±0.48 |
| Three-dimensional braided high-pressure pipe | 30 | 18.65 | 24.32±0.62 |
| 2.5D weave heightPressing pipe | 30 | 20.22 | 32.18±0.26 |
| Two-dimensional braided high-pressure pipe | 45 | 20.34 | 13.95±0.42 |
| Three-dimensional braided high-pressure pipe | 45 | 22.39 | 15.67±0.36 |
| 2.5D braided high-pressure tube | 45 | 24.36 | 23.56±0.27 |
| Two-dimensional braided high-pressure pipe | 60 | 29.49 | 12.24±0.14 |
| Three-dimensional braided high-pressure pipe | 60 | 32.96 | 14.48±0.35 |
| 2.5D braided high-pressure tube | 60 | 34.62 | 22.42±0.33 |
It can be known from table 2 that the axial compression performance of the 2.5D woven high-pressure pipe of the present invention is significantly superior to that of the high-pressure pipe woven by the two-dimensional and three-dimensional basalt fiber weaving method, and it can also be known that the 2.5D woven high-pressure pipe is convenient for enhancing the stability between the elliptical weft basalt fiber and the circular warp basalt fiber when the angle between the elliptical weft basalt fiber and the circular warp basalt fiber is set to be 30 °, thereby avoiding the lack of the axial strength between the elliptical weft basalt fiber and the circular warp basalt fiber, and further facilitating the enhancement of the axial tensile strength and the axial compression performance between the woven circular tube braids.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers is characterized by comprising the following steps of:
s1: conveying the basalt ore without impurities into a melting furnace, raising the temperature in the melting furnace to 1450-1500 ℃, and melting the basalt ore at the temperature of 1450-1500 ℃;
s2: the basalt ore is melted into molten liquid after S1, and the molten liquid of the high-temperature basalt is cooled for a period of time and then is drawn into continuous circular warp basalt fibers (1) and continuous elliptical weft basalt fibers (2) through a drawing device;
s3: the method comprises the steps that circular warp basalt fibers (1) and oval weft basalt fibers (2) in S2 are continuously conveyed to a pipeline die extending out of a weaving machine through a yarn withdrawing device, a plurality of oval weft basalt fibers (2) are placed above the pipeline die, the oval weft basalt fibers (2) are placed into a plurality of layers, the circular warp basalt fibers (1) sequentially penetrate through the oval weft basalt fibers (2) on the upper layer and the lower layer in a staggered mode, the oval weft basalt fibers (2) are connected together through the circular warp basalt fibers (1), the circular weft basalt fibers (1) and the oval weft basalt fibers (2) are woven continuously around the pipeline die, and the circular warp basalt fibers (1) and the oval weft basalt fibers (2) are woven into a 2.5D circular basalt woven fabric through the weaving machine;
s4: taking down the pipeline mould in the S3, adding an adhesive to the 2.5D circular tube braided fabric, and finally taking down the 2.5D circular tube braided fabric from the pipeline mould;
s5: taking off the 2.5D circular tube braided fabric in the step S4, and putting the 2.5D circular tube braided fabric into a forming die to manufacture a high-pressure tube;
s6: conveying the high-pressure pipe manufactured in the S5 to a detection chamber, continuously inputting natural gas into the high-pressure pipe to detect the pressure bearing range of the high-pressure pipe, and then testing the axial tensile strength and the axial compression performance of the high-pressure pipe by using a related testing device;
testing arrangement includes base (3), base (3) up end is connected with triangle chuck (4), base (3) up end still is connected with fixing base (5), the axis of triangle chuck (4) and the axis collineation of fixing base (5), connect fixed column (6) on fixing base (5), be connected with telescopic link (7) on fixed column (6), still be connected with hydraulic pump (8) of drive telescopic link (7) motion on fixing base (5), still be equipped with controller (9) on base (3), hydraulic pump (8) and controller (9) electric connection.
2. The method for weaving the basalt fiber composite high-pressure pipeline according to claim 1, wherein a weaving angle is formed between the horizontal plane and the elliptical weft basalt fibers (2) passing through the upper layer and the lower layer in a staggered manner by a plurality of circular warp basalt fibers (1), and the weaving angle is 25-35 degrees.
3. The weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers as claimed in claim 1, wherein the length of the minor diameter between the basalt fibers (2) with the oval weft yarn is 2-3 mm.
4. The weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers as claimed in claim 1, wherein the circular warp basalt fibers (1) penetrate through the elliptical weft basalt fibers (2) at the upper layer and the lower layer to form a curve in a sine shape.
5. The weaving method for manufacturing the composite high-pressure pipeline by using the basalt fibers is characterized in that the distance between the adjacent circular warp basalt fibers (1) is equal along the axial direction of the oval weft basalt fibers (2), and the distance between the adjacent circular warp basalt fibers (1) is 1-2 mm.
6. The weaving method of the basalt fiber composite high-pressure pipe according to claim 1, wherein an extrusion disc (10) is connected to the other end of the telescopic rod (7), a first elastic rope (11) is connected to one side of the extrusion disc (10), a first locking clamp (12) is connected to the other end of the first elastic rope (11), a second elastic rope (13) is connected to the other side of the extrusion disc (10), and a second locking clamp (14) is connected to the other end of the second elastic rope (13).
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| CN117021590B (en) * | 2023-10-08 | 2023-12-19 | 四川航天拓达玄武岩纤维开发有限公司 | Hot-melting connection device and method for inner wall of plastic pipe and basalt material |
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