CN109227926B - Manufacturing process of high-speed rail plate containing inorganic reinforced fibers - Google Patents
Manufacturing process of high-speed rail plate containing inorganic reinforced fibers Download PDFInfo
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- CN109227926B CN109227926B CN201811219248.1A CN201811219248A CN109227926B CN 109227926 B CN109227926 B CN 109227926B CN 201811219248 A CN201811219248 A CN 201811219248A CN 109227926 B CN109227926 B CN 109227926B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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Abstract
The invention discloses a manufacturing process of a high-speed rail plate containing inorganic reinforced fibers, which comprises the steps of prefabricating reinforcing ribs containing the inorganic reinforced fibers, prefabricating inorganic reinforced fiber cloth concrete, manufacturing the high-speed rail plate containing the inorganic reinforced fibers, maintaining the concrete of the high-speed rail plate containing the inorganic reinforced fibers and finishing the finished high-speed rail plate containing the inorganic reinforced fibers; the track slab has the advantages of high vibration resistance, good weather resistance, long service life, good internal compactness, excellent frost resistance, excellent anti-cracking performance and the like, avoids the influence of electromagnetic induction generated by using a metal material in the running process of high-speed rail or urban rail transit, and further improves the communication safety in the running process of the high-speed rail or urban rail transit.
Description
Technical Field
The invention relates to a manufacturing process of a high-speed rail plate, in particular to a manufacturing process of a high-speed rail plate containing inorganic reinforced fibers.
Background
Fiber reinforced composite materials were first developed in the united states since the last 30 s, and the composite articles of the time were primarily intended to meet the needs of the military and aerospace industries. In recent years, based on many advantages of fiber thermoplastic composites, people begin to focus on research on fiber reinforced thermoplastic or/and thermosetting composites, and continue to research on such materials, the yield of fiber thermoplastic composites is gradually increased, and the fiber thermoplastic composites are applied to various fields, such as aerospace, war industry, automobiles, electronic appliances, bridge building reinforcement, yacht and ships, and the like.
Compared to thermoplastic resins, thermosetting resins have numerous advantages, such as: the fiber reinforced thermosetting composite material has the characteristics of high strength, easy molding and processing, excellent flame resistance, chemical resistance, radiation resistance, good electrical insulation and the like, so the development of the fiber reinforced thermosetting composite material is rapid, and the growth speed of the fiber reinforced thermosetting composite material in recent years is superior to that of the fiber reinforced thermoplastic composite material.
Fiber-reinforced thermoplastic composites can be generally classified into short fiber-reinforced thermoplastic composites (untwisted ARFT), long fiber-reinforced thermoplastic composites (LFT) and continuous fiber-reinforced thermoplastic Composites (CFT) according to the reinforcing form of the fibers.
Although the fiber reinforced thermoplastic composite material has simple forming process and is easy to form various products with complex structures, the fiber reinforced thermoplastic composite material has limited effect of improving the mechanical property of the composite material due to the limitation of the length of the fiber and is similar to the effect of reinforcing common fillers, so the application of the product is limited by the mechanical property. Compared with untwisted ARFT, the LFT fiber in the product has longer retention length which is generally more than 10mm, in addition, such as an on-line mixing process, through the special combination of screw elements, the proper shearing effect is adjusted, and even LFT plates with the fiber retention length reaching 30-50 mm and the high fiber retention length can be produced, so that the mechanical property of the composite material is obviously improved. In the fiber reinforced composite material, when the fiber length exceeds the critical length, along with the increase of the fiber length in the resin, when the material is damaged, more energy is consumed by the processes of breaking, debonding, pulling out and the like of the fibers; in addition, the end parts of the fibers are initiation points of crack growth, the end parts of long fibers with the same fiber content are far less than those of short fibers, and the mechanical property of the long fiber reinforced composite material is obviously better than that of the short fiber reinforced composite material due to the reasons, so that the application range of the fiber reinforced composite material can be expanded.
Because the glass fiber and the basalt fiber are continuous, the fiber retention length in the product is basically consistent with the size of the product, and the mechanical property can be further improved. In addition, the method has good designability, and can design the performance of the product in all directions according to the requirements, thereby meeting the requirements of different occasions. Due to the high performance and designability of the inorganic fiber, the inorganic fiber can be used as an important load-bearing structural component, so that the aim of replacing a conventional steel component is fulfilled, the quality of a final product is greatly reduced, the cost is reduced, and the energy consumption is reduced. In recent years, with the energy conservation and emission reduction and the deep humanity of the low-carbon economic concept, the continuous fiber reinforced thermosetting composite material must meet an important challenge and opportunity. Based on the advantages and opportunities of the continuous fiber reinforced thermosetting composite material, the research and development of novel continuous fiber reinforced thermosetting composite materials are necessary, especially the development and research in the directions of high-performance thermosetting resins such as special thermosetting plastics and emerging molding processes such as winding.
Compared with the short fiber reinforced thermosetting composite material, the continuous fiber reinforced thermosetting composite material has more excellent mechanical property and can be used as a structural material; in addition, the material has the advantages of light weight, corrosion resistance and the like, and can effectively replace steel. It is necessary to research and develop new continuous fiber reinforced thermosetting composite material, especially high performance thermoplastic resin such as special engineering plastic and new forming process such as pultrusion and winding.
In the using process of the material, not only external load is borne constantly, but also erosion of different environments needs to be faced, the change rule of the material under the action of the environmental factors is researched, and an important guiding effect can be brought to the practical application of the material.
In chinese patent No: CN201710306331.1 describes a production method of a steam-curing-free high-speed rail plate and special concrete.
In chinese patent No: CN201710859755.0 describes a solid particle reinforced epoxy resin, in which the solid particles used are nanoparticles.
In chinese patent No: CN201710843698.7 describes a light carbon fiber epoxy resin composite environmental protection board.
Although the continuous inorganic reinforcing fiber can keep the fiber length in the composite material to be the same as the shape of the composite material, the impregnation degree of the inorganic reinforcing fiber in the epoxy resin impregnation mixture is an important link, and meanwhile, because the bendability of the metal material and the non-bendability of the inorganic reinforcing fiber reinforcing rib after impregnation and curing exist, when the thermosetting composite material of the inorganic reinforcing fiber is adopted, the thermosetting composite material of the inorganic reinforcing fiber needs to be bent to the shape required by a mould in advance, so that the application of the thermosetting composite material of the inorganic reinforcing fiber is convenient.
The invention aims to overcome the difficulties of continuous long fiber impregnation and fluidity of an impregnation mixture of epoxy resin after a curing agent is added, adopts a relatively simple treatment process, solves the problems of continuous impregnation of inorganic reinforcing fiber and fluidity of an epoxy resin impregnation mixture, and aims to control the diameter of an inorganic reinforcing fiber reinforcing rib for a high-speed rail track plate, improve the toughness of the inorganic reinforcing fiber reinforcing rib for the high-speed rail track plate, prolong the service life of the inorganic reinforcing fiber reinforcing rib for the high-speed rail track plate and simultaneously improve the impact strength of the inorganic reinforcing fiber reinforcing rib for the high-speed rail track plate.
Disclosure of Invention
The invention provides a manufacturing process of a high-speed rail plate containing inorganic reinforced fibers, which aims to solve the problems of increased rigidity and reduced toughness of the inorganic reinforced fibers after epoxy resin is cured, improve the ultralow temperature resistance of inorganic reinforced fiber reinforcing ribs and prolong the service life and the impact strength of the inorganic reinforced fiber reinforcing ribs for the high-speed rail plate.
The technical scheme of the invention is as follows:
a manufacturing process of a high-speed rail plate containing inorganic reinforced fibers comprises the steps of prefabricating reinforcing ribs containing the inorganic reinforced fibers, prefabricating inorganic reinforced fiber cloth concrete, manufacturing the high-speed rail plate containing the inorganic reinforced fibers, maintaining the high-speed rail plate concrete containing the inorganic reinforced fibers and finishing the high-speed rail plate containing the inorganic reinforced fibers; the manufacture of the high-speed rail plate containing the inorganic reinforced fiber adopts the following process:
(1) inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 10-20: 90-80, inputting the untwisted AR type glass long fibers and the basalt long fibers from the front end of the U-shaped groove, outputting the untwisted AR type glass long fibers and the basalt long fibers from the tail end of the U-shaped groove, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber yarns in a twisting machine;
(2) inputting the fiber thread in the step (1) into a fiber rope weaving machine to weave fiber ropes with the diameter of 4-6 mm;
(3) inputting the fiber rope obtained in the step (2) into a fiber rope weaving machine to weave the fiber rope into a fiber rope with the diameter of 8-24 mm;
(4) pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.3-2.0 mm into EP01441-310, pouring dibutyl ester into the epoxy resin and pouring dibutyl ester according to the mass ratio of 100: 8-13: 6-9: 6-11: 30-80: 60-110, uniformly stirring the epoxy resin and dibutyl ester for several times, pouring curing agent T31 into the epoxy resin and pouring dibutyl ester for several times, uniformly stirring the dibutyl ester and dibutyl ester, and finally pouring acetone, cement and quartz sand into the epoxy resin, dibutyl ester and quartz sand respectively and uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuous stirring of the mixture;
(5) feeding the impregnable mixture containing epoxy resin obtained in the step (4) downwards into a U-shaped groove from a funnel, feeding the inorganic reinforced fiber rope obtained in the step (3) from the left side of the U-shaped groove at the speed of 0.1-0.3 m/min, rotating the inorganic reinforced fiber rope at the speed of 1-3 prm, feeding the inorganic reinforced fiber rope out from the right side of the U-shaped groove after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, shearing the inorganic reinforced fiber rope into 6.0m or/and 12.3m, bending the inorganic reinforced fiber rope into a rectangle of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and directly feeding the mixture into a curing process;
(6) inputting the rectangular inorganic reinforced fiber rope containing the epoxy resin and capable of being impregnated with the mixture obtained in the step (5) into an inorganic reinforced fiber curing channel, and curing for 2-3 hours at the temperature of 68-88 ℃ to prepare an inorganic reinforced fiber reinforcing rib with the diameter of 10-26 mm for the high-speed rail plate;
(7) prefabricating the inorganic reinforced fiber reinforcing rib for the high-speed rail track plate obtained in the step (6) into a high-speed rail track plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m, and filling a high-speed rail track plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
(8) P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with the particle size of 2-4 mm, river sand with the moisture content of 0.5-1% wt, gravel with the particle size of 10-20 mm, inorganic short fiber of ceramic fiber or E-type glass fiber or basalt fiber with the length of 6-18 mm and the diameter of 3-6 mu m, sodium carboxymethyl cellulose and water are mixed according to the proportion of 400-550: 40-60: 1.0-1.2: 20-45: 600-900: 900-1200: 15-30: 3-6: 130-200 kg/m3Proportionally adding the mixture into a concrete mixer, and uniformly stirring;
(9) inputting the concrete mixed in the step (8) into a mould provided with the reinforcing rib grids of the high-speed rail track slab in the step (7), and pouring the high-speed rail track slab;
(10) putting the track board obtained in the step (9) and a mold into a curing box with the temperature of 24-26 ℃, arranging 12 water vapor spray nozzles at the top and two sides of the curing box, wherein the spray amount of each water vapor is 80-120L/h, arranging 4 phi 80 steam outlets at the top, after the track board is cured for 18-24 h and shaped, then putting the track board into the curing box with the temperature of 26-30 ℃, arranging 16 water spray nozzles at the top and two sides of the curing box, wherein the spray amount of each water spray is 120-160L/h, arranging 4 phi 90 water mist outlets at two sides, measuring the internal temperature of the high-speed track board from an embedded position, and when the internal temperature of the high-speed track board is the same as the internal environment temperature of the curing box, putting the track board into a water tank with the water temperature of 26-28 ℃ for curing for 24-48 h, thus the high-speed track board is manufactured.
The process flow of the invention has the following characteristics:
1. in order to improve the anti-vibration performance of the high-speed rail track slab, inorganic short fibers are adopted to solve fine cracks possibly caused by improper curing process conditions in the curing process of concrete in the research process, so that the defect of the concrete in the aspect is overcome, and compared with the concrete without the inorganic short fibers, the high-speed rail track slab manufactured by the concrete containing the short fibers is more regular, the material consumption is minimum, and the performance is more excellent.
2. In the manufacturing process of the inorganic reinforced fiber reinforcing rib for the high-speed rail track board, in order to improve various performances of the inorganic reinforced fiber reinforcing rib for the high-speed rail track board, the inorganic reinforced fiber is required to be made into twisted fiber with a certain number, and the purpose is to improve the bonding property of the inorganic reinforced fiber and the thermosetting fiber, so that the surface of the inorganic reinforced fiber is completely wrapped by the thermosetting polymer resin, and further achieve the purpose of improving various performances of the inorganic reinforced fiber reinforcing rib for the high-speed rail track board.
3. In the process of the present invention, in order to improve the adhesion between the inorganic reinforcing fibers and the thermosetting polymer, on one hand, it is necessary to control the gaps between the fibers during the twisting and rope making process of the inorganic reinforcing fibers; on the other hand, there is a need to control the flowability of impregnating materials made of thermosetting polymers; meanwhile, the traction rate of the inorganic reinforcing fibers needs to be controlled to reduce the impregnation adhesion between the inorganic reinforcing fibers and the thermosetting polymer, meanwhile, in the manufacturing process of the inorganic reinforcing fiber reinforcing rib for the high-speed railway track plate, the stirring rate of the epoxy resin impregnating material needs to be controlled to reduce the gas content therein, so that various performance indexes of the inorganic reinforcing fiber reinforcing rib for the high-speed railway track plate are reduced, meanwhile, in order to improve the impregnation effect of the inorganic reinforcing fibers in the epoxy resin x mixture, the inorganic reinforcing fibers need to roll properly in the impregnation process, the purpose is to ensure that the inorganic reinforcing fibers and the epoxy resin mixture are fully impregnated and adhered, so that the adhesion between the inorganic reinforcing fibers and the epoxy resin mixture is improved, and the adhesion between the subsequent inorganic reinforcing fiber reinforcing rib and the concrete is improved, therefore, only in this way is it advantageous to improve various performances for the high-speed rail panel.
4. In order to improve the yield of products, in the manufacturing process of the inorganic reinforced fiber rope, the mass ratio of the thermosetting epoxy resin polymer is the same as that in the process 4 in the process 1, the aim of the invention is to ensure that the curing rate of the inorganic reinforced fiber rope in the curing process is the same, according to the principle of compatibility and similarity of compounds, the mass ratio of the thermosetting polymer solution in the process 1 and the process 4 is the same, and the aim of the invention is to ensure that the thermosetting polymer in the interior and on the surface of the impregnated inorganic reinforced fiber has the same bonding performance, so as to improve various characteristic performances of the inorganic reinforced fiber reinforcing rib and further expand the application range of the inorganic reinforced fiber reinforcing rib.
5. In the process of the invention, in order to make the performance of the high-speed rail track plate reach an excellent degree, after the high-speed rail track plate is formed, the high-speed rail track plate is maintained by adopting proper temperature and humidity, and the aim is to improve various performances of the high-speed rail track plate on one hand, and prevent the high-speed rail track plate from deforming in the maintenance process on the other hand, so as to improve and adjust the maintenance process control conditions of the high-speed rail track plate and make various performances of the high-speed rail track plate reach an optimal degree.
6. In the process of the invention, in order to reduce the cost and improve the impact strength of the high-speed rail track slab, a certain proportion of inorganic short fibers are added, so that the raw material cost is reduced, the impact strength of the high-speed rail track slab is improved, the characteristic of good dimensional stability of the concrete containing inorganic reinforced fibers after forming is fully utilized, the yield of the high-speed rail track slab is improved, and the buckling deformation rate of the high-speed rail track slab in the maintenance treatment process is reduced.
7. In the process of the invention, in order to improve the impact strength of the high-speed rail track plate, a certain amount of water reducing agent and quartz sand are properly used in the pouring process of the high-speed rail track plate, and meanwhile, the particle sizes of the quartz sand and gravel are controlled, so that the forming time of the high-speed rail track plate is properly shortened, and the forming rates of the high-speed rail track plate are different due to different curing temperatures, therefore, the curing temperature and humidity of the high-speed rail track plate need to be controlled, and on one hand, the forming rate of the high-speed rail track plate is controlled; on the other hand, the buckling deformation rate of the high-speed rail plate is reduced, so that various performances of the high-speed rail plate can be optimized.
8. The high-speed rail plate adopts the inorganic reinforced fiber reinforcing ribs, and the most fundamental purpose is to reduce the influence of electromagnetic induction on communication information in the running process of a high-speed rail so as to reduce the pollution of the electromagnetic induction on the environment.
The process flow introduction of the invention is as follows:
in the manufacturing process of the invention used for the high-speed rail track slab, inorganic reinforced fibers are twisted and woven into a fiber line with a certain number, then the fiber line is made into a fiber rope with a certain diameter, the fiber rope and thermosetting polymer resin impregnating material containing epoxy resin, curing agent, diluent, cement and quartz sand are input into a U-shaped impregnating bath, the inorganic reinforced fiber rope is in the impregnating bath, after being fully impregnated, the inorganic reinforced fiber rope is cut into reinforcing ribs with a certain length and bent into a rectangle with a certain length and width, then a curing channel for controlling the curing temperature is input, the reinforcing ribs are cured into inorganic reinforced fiber reinforcing ribs which have a certain diameter and can be used for the high-speed rail track slab, the reinforcing ribs are prefabricated into a high-speed rail track slab reinforcing rib net with a certain length, width and thickness, the high-speed rail slab reinforcing rib net is placed into a mould, and concrete containing inorganic short fibers is input to be poured into the high-speed rail track slab, after controlling the temperature, humidity and time for maintaining the high-speed rail plate, the high-speed rail plate is manufactured.
Detailed Description
Example 1
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type long glass fiber and basalt long fiber into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 10: 90, inputting from the front end of the container, outputting from the tail end, and weaving the untwisted AR type long glass fiber and the basalt long fiber into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the EP01441-310 epoxy resin, the dibutyl ester, the curing agent T31 and the acetone is 100: 8: 6;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.3mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester and the curing agent T31 in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
an impregnable mixture containing epoxy resin is downwards fed into a U-shaped groove from a hopper, an inorganic reinforced fiber rope with the diameter of 8mm is fed from the left side of the U-shaped groove at the speed of 0.3m/min, the inorganic reinforced fiber rope is rotated at the speed of 1prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is fed out from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, and is bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then the inorganic reinforced fiber rope is fed into an inorganic reinforced fiber curing channel, and is cured for 3 hours at the temperature of 68 ℃ to prepare an inorganic reinforced fiber reinforced rib with the diameter of 10mm for a high-speed rail plate;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 2mm, sand washed, and moisture content of 0.5 wt% river sand, gravel with particle size of 10mm, E-type glass fiber with length of 6mm and diameter of 6 μm, sodium carboxymethyl cellulose, and water in a ratio of 400: 60: 1.2: 45: 900: 1200: 15: 3: 130kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 24 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 80L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 24h and shaped, the rail plate is placed into the curing box with the temperature of 26 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 120L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 26 ℃ for curing for 248h, and therefore, the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Example 2
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 20: 80, inputting from the front end of the container, outputting from the tail end of the container, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the EP01441-310 epoxy resin, dibutyl ester, curing agent T31 and acetone is 100: 13: 9: 11;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 2.0mm into EP01441-310, then pouring dibutyl ester into the mixture in a mass ratio of 100: 13: 9: 11: 80: 110, uniformly stirring the mixture in several times, then pouring curing agent T31 into the mixture in several times, uniformly stirring the mixture, and finally respectively pouring acetone, cement and quartz sand into the mixture in sequence and uniformly stirring the mixture; inputting the manufacturing process of the inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring;
an impregnable mixture containing epoxy resin is conveyed into a U-shaped groove from a hopper downwards, an inorganic reinforced fiber rope with the diameter of 8mm is conveyed from the left side of the U-shaped groove at the speed of 0.1m/min, the inorganic reinforced fiber rope is rotated at the speed of 3prm, after the inorganic reinforced fiber rope is sufficiently impregnated in the U-shaped groove, the inorganic reinforced fiber rope is conveyed from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, and is bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then the inorganic reinforced fiber rope is conveyed into an inorganic reinforced fiber curing channel, and is cured for 2 hours at the temperature of 88 ℃ to prepare an inorganic reinforced fiber reinforced rib with the diameter of 26mm for a high-speed rail plate;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 2-4 mm, sand washed, gravel with particle size of 20mm and moisture content of 1 wt%, ceramic fiber with particle size of 18mm and diameter of 3 mu m, sodium carboxymethylcellulose and water in a ratio of 550: 40: 1.0: 20: 600: 900: 15: 6: 200kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 26 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 120L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 18h and shaped, the rail plate is placed into the curing box with the temperature of 30 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 160L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 28 ℃ and cured for 24h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Example 3
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to the mass ratio of 13: 87, inputting from the front end of the container, outputting from the tail end of the container, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the mixed solution of the epoxy resin, dibutyl ester, curing agent T31 and acetone in EP01441-310 is 100: 11: 8: 9;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.5mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31 in a fractional manner, uniformly stirring the dibutyl ester, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
an impregnable mixture containing epoxy resin is downwards input into a U-shaped groove from a hopper, an inorganic reinforced fiber rope with the diameter of 8mm is input from the left side of the U-shaped groove at the speed of 0.2m/min, the inorganic reinforced fiber rope rotates at the speed of 2prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is output from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, and is bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then the inorganic reinforced fiber rope is input into an inorganic reinforced fiber curing channel, and is cured for 2.5 hours at the temperature of 81 ℃ to prepare an inorganic reinforced fiber reinforced rib with the diameter of 12mm for a high-speed rail plate;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 3mm, sand washed, water content of 0.6 wt% river sand, gravel with particle size of 15mm, ceramic fiber with length of 9mm and diameter of 4 μm, sodium carboxymethyl cellulose and water in the ratio of 460: 50: 1.1: 34: 711: 957: 18: 4: 136kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 25 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 90L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 21h and shaped, the rail plate is placed into the curing box with the temperature of 28 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 131L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 27 ℃ and cured for 42h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Comparative example 1
Inputting untwisted AR type glass long fibers and basalt long fibers into a fiber twisting machine to be woven into 64 fiber threads according to the mass ratio of 10: 90, and inputting the fiber threads into a fiber rope weaving machine to be woven into fiber ropes with the diameter of 6 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 24mm for standby;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.3mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31 in a fractional manner, uniformly stirring the dibutyl ester, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
the impregnable mixture containing epoxy resin is downwards input into a U-shaped groove from a funnel, an inorganic reinforced fiber rope with the diameter of 24mm is input from the left side of the U-shaped groove at the speed of 0.1m/min, the inorganic reinforced fiber rope rotates at the speed of 1prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is output from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then input into an inorganic reinforced fiber curing channel, and after curing is carried out for 2-3 hours at the temperature of 68-88 ℃, the inorganic reinforced fiber reinforcing fiber rope with the diameter of 26mm for a high-speed rail plate is prepared;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with the particle size of 2-4 mm, river sand with the moisture content of 0.5 percent by weight, gravel with the particle size of 10mm and water in the proportion of 500: 50: 1.1: 41: 800: 1100: 150kg/m3Proportionally adding into concrete mixer, stirring, adding into high-speed railway track platePouring the high-speed rail plate in the mold with the strong rib grids;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 24 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 80L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 24h and shaped, the rail plate is placed into the curing box with the temperature of 26 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 120L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 26 ℃ and cured for 48h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the high-speed rail panel manufactured by the above process conditions are shown in table 1.
Example 4
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 15: 85, inputting from the front end of the container, outputting from the tail end of the container, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the EP01441-310 epoxy resin, dibutyl ester, curing agent T31 and acetone is 100: 12: 9: 10;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.6mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31 in a fractional manner, uniformly stirring the dibutyl ester, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
an impregnable mixture containing epoxy resin is downwards fed into a U-shaped groove from a hopper, an inorganic reinforced fiber rope with the diameter of 8mm is fed from the left side of the U-shaped groove at the speed of 0.2m/min, the inorganic reinforced fiber rope is rotated at the speed of 2prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is fed from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, and is bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, the rectangle is fed into an inorganic reinforced fiber curing channel, and after curing is carried out for 3 hours at the temperature of 88 ℃, an inorganic reinforced fiber reinforcing fiber;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 4mm, washed silt and moisture content of 0.7 wt% river sand, gravel with particle size of 16mm, basalt fiber with length of 15mm and diameter of 5 μm, sodium carboxymethyl cellulose and water in a ratio of 480: 55: 1.2: 43: 813: 1174: 24: 3.5: 188kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 25 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 110L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 22h and shaped, the rail plate is placed into the curing box with the temperature of 29 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 143L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 27 ℃ and cured for 44h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Example 5
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 17: 83, inputting from the front end of the container, outputting from the tail end of the container, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the EP01441-310 epoxy resin, dibutyl ester, curing agent T31 and acetone is 100: 11: 6: 11;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.7mm into EP01441-310, then pouring dibutyl ester into the mixture according to the mass ratio of 100: 11: 6: 11: 66: 99, uniformly stirring the epoxy resin, then pouring the dibutyl ester into the mixture in several times, uniformly stirring the dibutyl ester and the curing agent T31, finally respectively pouring the acetone, the cement and the quartz sand into the mixture in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
an impregnable mixture containing epoxy resin is downwards input into a U-shaped groove from a hopper, an inorganic reinforced fiber rope with the diameter of 8mm is input from the left side of the U-shaped groove at the speed of 0.3m/min, the inorganic reinforced fiber rope rotates at the speed of 3prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is output from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then input into an inorganic reinforced fiber curing channel, and after curing is carried out for 2.5 hours at the temperature of 74 ℃, an inorganic reinforced fiber reinforcing fiber bar with the diameter of 14mm for a high-speed rail plate is manufactured;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 2.5mm, river sand with moisture content of 0.8% by weight and washed away by silt, gravel with particle size of 18mm, ceramic fiber with length of 11mm and diameter of 5 mu m, sodium carboxymethyl cellulose and water in a ratio of 510: 55: 1.1: 37: 867: 1044: 22: 4.5: 164kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 26 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 120L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 24h and shaped, the rail plate is placed into the curing box with the temperature of 30 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 160L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 28 ℃ and cured for 48h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Example 6
The manufacturing process of the high-speed rail plate containing the inorganic reinforced fiber comprises the following steps:
inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove container filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 19: 81, inputting from the front end of the container, outputting from the tail end of the container, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber threads in a twisting machine; inputting the fiber rope into a fiber rope weaving machine to weave a fiber rope with the diameter of 4 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 8mm for standby; wherein the mass ratio of the EP01441-310 epoxy resin, dibutyl ester, curing agent T31 and acetone is 100: 13: 9: 11;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 1.4mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31 in a fractional manner, uniformly stirring the dibutyl ester, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
an impregnable mixture containing epoxy resin is downwards fed into a U-shaped groove from a hopper, an inorganic reinforced fiber rope with the diameter of 8mm is fed from the left side of the U-shaped groove at the speed of 0.1m/min, the inorganic reinforced fiber rope is rotated at the speed of 1prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is fed from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, and is bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, the rectangle is fed into an inorganic reinforced fiber curing channel, and after curing is carried out for 2 hours at the temperature of 68 ℃, an inorganic reinforced fiber reinforcing fiber bar with the diameter of 20mm for a high-speed rail plate is manufactured;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 3.5mm, river sand with moisture content of 0.9 wt% and washed away by silt, 13mm gravel with particle size, 16mm long E-type glass fiber with diameter of 3 μm, sodium carboxymethyl cellulose, and water at 490: 48: 1.2: 45: 900: 1200: 30: 5.5: 200kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 24 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 89L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 18h and shaped, the rail plate is placed into the curing box with the temperature of 26 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 151L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 26 ℃ and cured for 24h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the inorganic reinforced fiber-containing high-speed rail panel manufactured by the above process conditions are shown in table 1.
Comparative example 2
Inputting untwisted AR type glass long fibers and basalt long fibers into a fiber twisting machine to be woven into 16 fiber threads according to the mass ratio of 20: 80, and inputting the fiber threads into a fiber rope weaving machine to be woven into fiber ropes with the diameter of 8 mm; inputting the fiber rope into a fiber rope weaving machine to weave fiber ropes with the diameter of 32mm for standby;
firstly pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with the particle size of 3.0mm into EP01441-310, then pouring dibutyl ester, pouring the epoxy resin and the dibutyl ester in a fractional manner, uniformly stirring the epoxy resin, the dibutyl ester, the curing agent T31 in a fractional manner, uniformly stirring the dibutyl ester, the curing agent T31 in a fractional manner, finally respectively pouring the acetone, the cement and the quartz sand in sequence, uniformly stirring the mixture, and inputting the mixture into a manufacturing process of an inorganic reinforced fiber reinforcing rib under the condition of fully ensuring the fluidity and continuously stirring the mixture;
the impregnable mixture containing epoxy resin is downwards input into a U-shaped groove from a funnel, an inorganic reinforced fiber rope with the diameter of 32mm is input from the left side of the U-shaped groove at the speed of 0.6m/min, the inorganic reinforced fiber rope is rotated at the speed of 10prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, the inorganic reinforced fiber rope is output from the right side of the U-shaped groove, and is cut into 6.0m or/and 12.3m, bent into a rectangle with the diameter of 0.16m multiplied by 2.46m or/and 0.16m multiplied by 5.56m, and then input into an inorganic reinforced fiber curing channel, and after curing is carried out for 2-3 hours at the temperature of 68-88 ℃, the inorganic reinforced fiber reinforcing fiber rope with the diameter of 34mm for a high-speed rail plate is prepared;
prefabricating a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m, the thickness of 0.16m and the length multiplied by the width of 0.08m multiplied by 0.08m by the high-speed rail plate by using an inorganic reinforcing fiber reinforcing rib, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20m for standby;
P042.5R cement, high alumina cement, MT3610P water reducing agent, quartz sand with particle size of 5mm, washed sediment and moisture content of 2.0 wt% river sand, gravel with particle size of 30mm, ceramic fiber with length of 3mm and diameter of 10 μm, and water in the ratio of 600: 30: 1.3: 15: 1000: 1300: 10: 80kg/m3Proportionally adding the mixture into a concrete mixer, uniformly mixing, inputting the mixture into a mould provided with reinforcing rib grids of the high-speed rail track slab, and pouring the high-speed rail track slab;
the high-speed rail plate and a mould are placed into a curing box with the temperature of 30 ℃, 12 steam spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each steam is 160L/h, 4 phi 80 steam outlets are arranged at the top, after the rail plate is cured for 12h and shaped, the rail plate is placed into the curing box with the temperature of 35 ℃, 16 water spray nozzles are arranged at the top and two sides of the curing box, the spray amount of each water spray is 100L/h, 4 phi 90 steam outlets are arranged at two sides, the internal temperature of the high-speed rail plate is measured from an embedded position, when the internal temperature of the high-speed rail plate is the same as the internal environment temperature of the curing box, the high-speed rail plate is placed into a water tank with the water temperature of 35 ℃ and cured for 48h, and therefore the high-speed rail plate is manufactured.
Various performance characteristics of the high-speed rail panel manufactured by the above process conditions are shown in table 1.
TABLE 1 data table of performance characteristics of high-speed railway track slabs containing inorganic reinforcing fibers according to the invention
Claims (8)
1. A manufacturing process of a high-speed rail plate containing inorganic reinforced fibers comprises the steps of prefabricating reinforcing ribs containing the inorganic reinforced fibers, prefabricating inorganic reinforced fiber concrete, manufacturing the high-speed rail plate containing the inorganic reinforced fibers, maintaining the high-speed rail plate concrete containing the inorganic reinforced fibers and finishing the high-speed rail plate containing the inorganic reinforced fibers, and is characterized in that the manufacturing process comprises the following steps:
(1) inputting untwisted AR type glass long fibers and basalt long fibers into a U-shaped groove filled with a mixed solution of EP01441-310 epoxy resin, dibutyl ester, a curing agent T31 and acetone according to a mass ratio of 10-20: 90-80, inputting the untwisted AR type glass long fibers and the basalt long fibers from the front end of the U-shaped groove, outputting the untwisted AR type glass long fibers and the basalt long fibers from the tail end of the U-shaped groove, and weaving the untwisted AR type glass long fibers and the basalt long fibers into 64 fiber yarns in a twisting machine;
(2) inputting the fiber thread in the step (1) into a fiber rope weaving machine to weave fiber ropes with the diameter of 4-6 mm;
(3) inputting the fiber rope obtained in the step (2) into a fiber rope weaving machine to weave an inorganic reinforced fiber rope with the diameter of 8-24 mm;
(4) pouring epoxy resin, dibutyl ester, curing agent T31, acetone, P042.5R cement and quartz sand with particles of 1.3-2.0 mm into EP01441-310, pouring dibutyl ester into the mixture in a mass ratio of 100: 8-13: 6-9: 6-11: 30-80: 60-110, uniformly stirring the epoxy resin and the dibutyl ester for several times, pouring curing agent T31 into the mixture for several times, uniformly stirring the mixture, sequentially pouring the acetone, the cement and the quartz sand into the mixture, uniformly stirring the mixture, and fully ensuring the flowability and continuously stirring the mixture to obtain a impregnable mixture;
(5) feeding the impregnable mixture obtained in the step (4) downwards into a U-shaped groove from a funnel, feeding the inorganic reinforced fiber rope with the diameter of 8-24 mm obtained in the step (3) from the left side of the U-shaped groove at the speed of 0.1-0.3 m/min, rotating the inorganic reinforced fiber rope at the speed of 1-3 prm, after the inorganic reinforced fiber rope is fully impregnated in the U-shaped groove, feeding the inorganic reinforced fiber rope out from the right side of the U-shaped groove, cutting the inorganic reinforced fiber rope into 6.0m and 12.3m, and bending the inorganic reinforced fiber rope into rectangles with the diameter of 0.16m multiplied by 2.46m and 0.16m multiplied by 5.56 m;
(6) inputting the rectangular inorganic reinforced fiber rope in the step (5) into an inorganic reinforced fiber curing channel, and curing for 2-3 h at the temperature of 68-88 ℃ to prepare an inorganic reinforced fiber reinforcing rib with the diameter of 10-26 mm for the high-speed rail track board;
(7) prefabricating the inorganic reinforced fiber reinforcing rib in the step (6) into a high-speed rail plate reinforcing rib grid with the length of 5.56m, the width of 2.46m and the thickness of 0.16m and the length and the width of 0.08m multiplied by 0.08m, and filling a high-speed rail plate mould with the length of 5.60m, the width of 2.50m and the thickness of 0.20 m;
(8) P042.5R cement, high alumina cement, a water reducing agent, quartz sand, river sand, gravel, inorganic short fiber, sodium carboxymethylcellulose and water in a ratio of 400-550: 40-60: 1.0-1.2: 20-45: 600-900: 900-1200: 15-30: 3-6: 130-200 kg/m3Proportionally adding the mixture into a concrete mixer, and uniformly stirring;
(9) inputting the concrete uniformly stirred in the step (8) into a mould provided with the reinforcing rib grids of the high-speed rail track slab in the step (7), and pouring the high-speed rail track slab;
(10) putting the track board and the mold in the step (9) into a curing box with the temperature of 24-26 ℃, arranging 12 water vapor spray nozzles at the top and two sides of the curing box, wherein the spray amount of each water vapor is 80-120L/h, arranging 4 phi 80 steam outlets at the top, after the track board is cured for 18-24 h and shaped, then putting the track board into the curing box with the temperature of 26-30 ℃, arranging 16 water spray nozzles at the top and two sides of the curing box, wherein the spray amount of each water spray is 120-160L/h, arranging 4 phi 90 water mist outlets at two sides, measuring the internal temperature of the high-speed track board from an embedded position, and when the internal temperature of the high-speed track board is the same as the internal environment temperature of the curing box, putting the track board into a water tank with the water temperature of 26-28 ℃ for curing for 24-48 h, thus manufacturing the high-speed track board.
2. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: the mass ratio of the epoxy resin, dibutyl ester, curing agent T31 and acetone in the EP01441-310 in the step (1) is 100: 8-13: 6-9: 6-11.
3. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: the water reducing agent in the step (8) is MT 3610P.
4. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: and (4) the particle size of the quartz sand particles in the step (8) is 2-4 mm.
5. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: and (4) washing the river sand to remove silt, wherein the moisture content of the river sand is 0.5-1% by weight.
6. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: the particle size of the gravel particles in the step (8) is 10-20 mm.
7. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 1, wherein: the inorganic short fibers in the step (8) are ceramic fibers, E-type glass fibers or basalt fibers.
8. The process for manufacturing a high-speed railway track plate containing inorganic reinforcing fibers as claimed in claim 7, wherein: the length of the inorganic short fibers is 6-18 mm, and the diameter of the inorganic short fibers is 3-6 mu m.
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| DE102012108132B4 (en) * | 2012-08-31 | 2015-01-22 | Firep Rebar Technology Gmbh | Process for the production of reinforcing elements made of fiber-reinforced plastic |
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