CN111231370A - Preparation method of insulating composite material channel clamping plate - Google Patents
Preparation method of insulating composite material channel clamping plate Download PDFInfo
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- CN111231370A CN111231370A CN201911293545.5A CN201911293545A CN111231370A CN 111231370 A CN111231370 A CN 111231370A CN 201911293545 A CN201911293545 A CN 201911293545A CN 111231370 A CN111231370 A CN 111231370A
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- clamping plate
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- insulating composite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
- B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/047—Reinforcing macromolecular compounds with loose or coherent fibrous material with mixed fibrous material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Abstract
The invention relates to a preparation method of an insulating composite material channel clamp plate, which comprises the steps of taking reinforcing fibers as raw materials, twisting the reinforcing fibers into reinforcing fiber yarns, carrying out surface infiltration on the reinforcing fiber yarns to form reinforcing fiber yarn prepreg, carrying out warp and weft weaving by using the reinforcing fiber yarn prepreg to form a layered structure with through holes on the surface, penetrating the reinforcing fiber yarns into the through holes to form a blocky structure, and carrying out compression molding by using a mold. As the raw materials adopted by the road clamping plate are all provided with the reinforced fiber yarns in three dimensions, the whole stress effect of the road clamping plate is improved due to the action of the reinforced fiber yarns no matter which direction is stressed in the pressing process. The product is light in weight, high in strength, integrated in structure, convenient to transport and install, corrosion-resistant, capable of greatly reducing the workload of maintenance and replacement to a certain extent, good in insulativity and capable of avoiding the problem of short circuit of a track circuit caused by scrap iron scattered due to friction of train wheels and steel rails, and accordingly correct transmission of track circuit signals is guaranteed and running safety of railways is guaranteed.
Description
Technical Field
The invention relates to the technical field of railway steel rail accessory processing, in particular to a preparation method of an insulating composite material rail clamp plate.
Background
The clamping plates at the rail joints are commonly called as the track clamping plates and play a role in connection at the rail joints. The track clamping plates at the railway station sections, however, need not only their function of connecting the rails but also their guarantee of good insulation properties. The track circuits are arranged at two ends of the track and are used for monitoring the occupation and leaving conditions of the train on the line of a section or a station, so that the information such as the position of a forward train required by the train, the signal display before the train runs, the line condition and the like is directly provided for the train, and once the circuits at the two ends of the track are short-circuited or connected, unpredictable results are brought. At present, most of road clamping plates used on railways are all made of steel, have the advantages of high strength and rigidity, low price and the like, but have the defects of high mass, no corrosion resistance, no insulation and the like, and bring much trouble to railway maintenance personnel. Usually, the steel rail clamp plate is usually matched with a nylon insulating baffle plate for insulation, and an insulating sleeve is used together, so that the whole installation system has an insulating effect. However, the insulating nylon baffle and the insulating sleeve are weak in structure and are easy to damage in long-term operation, so that seasonal decomposition and inspection are required to be performed twice each year, and a large amount of maintenance cost is brought by replacing a part of damaged insulating fittings. And with regard to the way splint system of present steel way splint cooperation insulating nylon baffle, also have certain hidden danger, this is because the train in-process of traveling, because the friction of train wheel and rail leads to the rail surface to appear iron fillings and drop in way splint department, amasss to cause the bridging in large numbers, thereby leads to two rails to lead to through steel way splint switch on and cause the track circuit short circuit, causes the track circuit to have certain accident risk. Therefore, how to manufacture a light-weight, high-strength, corrosion-resistant and good-insulation-performance road clamping plate becomes a problem to be solved urgently.
The Chinese patent provides a method for preparing a composite material road clamping plate by a pultrusion process, and the road clamping plate prepared by the pultrusion process is mainly characterized in that the tensile strength in the direction parallel to a track is high, but the tensile strength in the direction perpendicular to the track and the compressive strength are low. However, when the actual stress condition of the rail clamping plate is analyzed according to simulation software, the fact that the force borne by the fishplate is small in the direction parallel to the steel rail and the compressive strength and the tensile strength in the vertical direction are large is found. And the yield is lower when the thicker road splint product is prepared by the pultrusion process, and the production cost is increased.
Disclosure of Invention
The invention provides a preparation method of an insulating composite material channel clamp plate, and aims to solve the technical problems of poor insulating property, poor weighing effect and short service life of the existing channel clamp plate.
According to one aspect of the invention, a method for preparing an insulating composite material road splint is provided, which comprises the following steps:
step S1, taking the reinforced fiber as a raw material, and twisting to form a reinforced fiber filament with the diameter of 1mm-2 mm;
step S2, pouring the resin and the additive into a glue mixing tank, uniformly stirring, adding the polymerization inhibitor, the release agent, the cross-linking agent, the curing agent, the viscosity reducer and the auxiliary agent, uniformly stirring, adding the filler and the whitening agent, uniformly stirring, adding the thickening agent, and uniformly stirring to obtain resin paste;
step S3 of dipping reinforcing fiber yarns into the resin paste obtained in step S2 to obtain reinforcing fiber yarn prepregs;
step S4, carrying out warp and weft weaving on the reinforced fiber filament prepreg in the step S3 to form a layered structure with through holes on the surface, penetrating the reinforced fiber filament into the through holes, and forming a plurality of layered structures into a through laminated compact block structure;
and step S5, pressing the block structure into a blank under an unheated die, quickly heating the temperature of a molding press to 150 ℃, pressurizing to 8MPa, and preserving the temperature for 30min to obtain the insulating composite material clamping plate.
Preferably, in the step S2, 32 to 40 parts of resin is used; 3-5 parts of an additive.
Preferably, on the basis of the above scheme, the resin is epoxy resin or polyurethane resin or unsaturated resin.
On the basis of the scheme, the reinforced fiber is preferably one or more of glass fiber, basalt fiber, carbon fiber or mixed fiber.
Preferably on the basis of the scheme, the rail clamping plate and the rail fitting part are provided with slopes, and the rail clamping plate is wedged into the rail waist space and is fitted with the surface of the rail waist.
On the basis of the scheme, the maximum thickness of the insulating road clamping plate is preferably 36-46 mm.
On the basis of the scheme, the rail clamping plate and the rail are preferably fixed through a fixing nut, and a spring washer is arranged between the fixing nut and the rail clamping plate.
On the basis of the scheme, preferably, the hollow steel casing pipe is installed at the position of the clamping plate hole.
The invention relates to a preparation method of an insulating composite material channel clamping plate, which comprises the steps of taking reinforcing fibers as raw materials, twisting the reinforcing fibers into reinforcing fiber yarns, infiltrating the surfaces of the reinforcing fiber yarns to form reinforcing fiber yarn prepreg, improving the corrosion resistance of the reinforcing fiber yarns, weaving the reinforcing fiber yarn prepreg in a warp-weft mode to form a layered structure with through holes in the surface, penetrating the reinforcing fiber yarns into the through holes to form a blocky structure, and pressing and molding the blocky structure by using a mold. As the raw materials adopted by the road clamping plate are all provided with the reinforced fiber yarns in three dimensions, the whole stress effect of the road clamping plate is improved due to the action of the reinforced fiber yarns no matter which direction is stressed in the process of pressing the film.
The invention has the advantages that the product is light, high in strength, integrated in structure, convenient to transport and install, corrosion resistant, greatly reduces the workload of maintenance and replacement to a certain extent, and good in insulativity, can avoid the problem of short circuit of a track circuit caused by iron chips scattered by friction of train wheels and steel rails, thereby ensuring the correct transmission of track circuit signals.
Drawings
FIG. 1 is a front view of an insulating composite track clamp plate of the present invention;
FIG. 2 is a schematic view of the installation of the insulating composite track clamp of the present invention;
FIG. 3 is a flow chart of a method of making the insulating composite track splint of the present invention;
FIG. 4 is a perspective view of a fiber lay-up of an insulation composite road splint of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, and referring to fig. 2 and fig. 3, a method for manufacturing an insulating composite material road clamping plate according to the present invention includes the following steps:
step S1, taking the reinforced fiber as a raw material, and twisting to form a reinforced fiber filament with the diameter of 1mm-2mm, wherein the raw material of the reinforced fiber filament is one or more of glass fiber, basalt fiber, carbon fiber or mixed fiber;
step S2, pouring the resin and the additive into a glue mixing tank, uniformly stirring, adding a polymerization inhibitor, a release agent, a cross-linking agent, a curing agent, a viscosity reducer and an auxiliary agent, uniformly stirring, adding a filler and a whitening agent, uniformly stirring, adding a thickening agent, and uniformly stirring to obtain a resin paste, wherein the resin is epoxy resin, polyurethane resin or unsaturated resin, and 32-40 parts of resin is adopted; 3-5 parts of an additive;
step S3 of dipping reinforcing fiber yarns into the resin paste obtained in step S2 to obtain reinforcing fiber yarn prepregs;
step S4, carrying out warp and weft weaving on the reinforced fiber filament prepreg in the step S3 to form a layered structure with through holes on the surface, penetrating the reinforced fiber filaments into the through holes as shown in figure 4, and then forming a plurality of layered structures into a penetrating and laminating compacted block-shaped structure;
and step S5, pressing the block structure into a blank under an unheated die, quickly heating the temperature of a molding press to 150 ℃, pressurizing to 8MPa, and preserving the temperature for 30min to obtain the clamping plate 5 made of the insulating composite material.
The additive in the invention is one or a mixture of more of a dispersant, a flame retardant, a coloring agent, a coupling agent, a curing agent, a low shrinkage agent, an internal mold release agent and an ultraviolet absorbent.
It is worth to be noted that, the joint part of the track clamping plate 5 and the track 3 is provided with a slope, the track clamping plate 5 is inserted into the track waist space to be jointed with the surface of the track waist, and the maximum thickness of the track clamping plate 5 is between 36 mm and 46 mm. Referring to fig. 3, the track clamp plate 5 of the present invention is fixed to the track by a fixing nut, a spring washer 9 is disposed between the fixing nut and the track clamp plate 5, and a hollow steel sleeve is installed at the position of the hole of the track clamp plate 5.
In order to verify the performance of the processed road clamping plate, the pultrusion process is adopted, and the epoxy resin E51: methyl nadic anhydride is prepared according to the following mixture ratio: inner mold release agent: the DMP-30 comprises the following components in percentage by mass 100: 85: 1.5: 2, mixing and stirring uniformly, and processing 4 parts of clamping plates 5 by the pultrusion process after soaking fibers;
meanwhile, the channel clamping plate is processed by using a common mould pressing process, wherein the adopted resin formula is a polyurethane resin system: magnesium oxide: zinc stearate: the polystyrene powder comprises the following components in percentage by mass: 2: 1: 2 to form a resin paste, impregnating the fibers, and processing 4 parts of a clamp plate 5 by a die press.
The common pultrusion process in the invention refers to a method for continuously producing glass fiber reinforced plastic linear products by dipping, extrusion molding, heating and curing, fixed-length cutting and the like of glass fiber roving or fabrics thereof under the traction of external force. The impregnated continuous fiber is made to pass through a forming mold with certain cross section shape, and is cured in mold cavity or gelated in mold cavity, and the fiber is taken out of the mold and heated to cure, drawn continuously to form long product and cut according to the size of the product.
The 8 samples are respectively tested for the compressive strength in the direction perpendicular to the track 3, and the experimental data obtained by the specific test are as follows:
| examples | Pultrusion process | Die pressing process [0 °/90 ° ]]s-lay layer design |
| 1 | 42.73MPa | 400.17MPa |
| 2 | 53.81MPa | 403.93MPa |
| 3 | 55.63MPa | 413.82MPa |
| 4 | 49.72MPa | 392.56MPa |
| Mean value of | 50.47MPa | 402.62MPa |
It can be seen from the data in the table that the compressive strength in the direction perpendicular to the rails 3 can be greatly improved by changing the ply direction of the fibers through the molding process. And simulation analysis shows that the maximum compression strength of the position of the hole of the road clamping plate 5 can reach more than 252MPa when the road clamping plate is actually stressed on the track 3, so that the composite material road clamping plate 5 prepared by the pultrusion process can fail at the position of the hole. Wherein, a perspective view of the fiber layer of the road splint processed by the mould pressing process is shown in fig. 4.
According to the preparation method of the insulating composite material channel clamp plate, the reinforcing fibers are used as raw materials and are rolled into the reinforcing fiber yarns, the reinforcing fiber yarns are subjected to surface infiltration to form the reinforcing fiber yarn prepreg, the corrosion resistance of the reinforcing fiber yarns is improved, the reinforcing fiber yarn prepreg is utilized to perform warp and weft weaving to form a layered structure with through holes on the surface, the reinforcing fiber yarns penetrate into the through holes to form a blocky structure, and the blocky structure is pressed and formed by a mold. As the raw materials adopted by the road clamping plate 5 are all provided with the reinforced fiber yarns in three dimensions, the whole stress effect of the road clamping plate is improved due to the action of the reinforced fiber yarns no matter which direction is stressed in the pressing process.
The invention has the advantages that the product is light, high in strength, integrated in structure, convenient to transport and install, corrosion resistant, greatly reduces the workload of maintenance and replacement to a certain extent, and good in insulativity, can avoid the problem of short circuit of a track 3 circuit caused by scrap iron scattered by friction of train wheels and steel rails, thereby ensuring the correct transmission of track 3 circuit signals.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The preparation method of the insulating composite material channel clamping plate is characterized by comprising the following steps:
step S1, taking the reinforced fiber as a raw material, and twisting to form a reinforced fiber filament with the diameter of 1mm-2 mm;
step S2, pouring the resin and the additive into a glue mixing tank, uniformly stirring, adding the polymerization inhibitor, the release agent, the cross-linking agent, the curing agent, the viscosity reducer and the auxiliary agent, uniformly stirring, adding the filler and the whitening agent, uniformly stirring, adding the thickening agent, and uniformly stirring to obtain resin paste;
step S3 of dipping reinforcing fiber yarns into the resin paste obtained in step S2 to obtain reinforcing fiber yarn prepregs;
step S4, carrying out warp and weft weaving on the reinforced fiber filament prepreg in the step S3 to form a layered structure with through holes on the surface, penetrating the reinforced fiber filament into the through holes, and forming a plurality of layered structures into a through laminated compact block structure;
and step S5, pressing the block structure into a blank under an unheated die, quickly heating the temperature of a molding press to 150 ℃, pressurizing to 8MPa, and preserving the temperature for 30min to obtain the insulating composite material clamping plate.
2. The method for preparing an insulation composite material road splint according to claim 1, wherein in the step S2, the resin is 32-40 parts; 3-5 parts of an additive.
3. The method of claim 2, wherein the resin is epoxy resin, polyurethane resin, or unsaturated resin.
4. The method for preparing an insulating composite material road splint according to claim 1, wherein the reinforcing fiber is one or more of glass fiber, basalt fiber, carbon fiber or mixed fiber.
5. The method for preparing the insulating composite material rail clip according to claim 1, wherein the rail clip is provided with a slope at the rail joint part, and the rail clip is inserted into the rail web space to be jointed with the surface of the rail web.
6. The method of claim 1, wherein the maximum thickness of the duct board is between 36 mm and 46 mm.
7. The method of claim 1, wherein the road clamping plate is fixed to the rail by a fixing nut, and a spring washer is disposed between the fixing nut and the road clamping plate.
8. The method for preparing an insulating composite material road clamping plate according to claim 1, wherein a hollow steel sleeve is arranged at the position of the hole of the road clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293545.5A CN111231370A (en) | 2019-12-12 | 2019-12-12 | Preparation method of insulating composite material channel clamping plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293545.5A CN111231370A (en) | 2019-12-12 | 2019-12-12 | Preparation method of insulating composite material channel clamping plate |
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|---|---|
| CN111231370A true CN111231370A (en) | 2020-06-05 |
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| CN201911293545.5A Pending CN111231370A (en) | 2019-12-12 | 2019-12-12 | Preparation method of insulating composite material channel clamping plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005072940A1 (en) * | 2004-01-14 | 2005-08-11 | Chomarat Composites | Novel reinforcing stiffening wire complex |
| CN101466535A (en) * | 2006-11-22 | 2009-06-24 | 福井县 | Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article |
| CN104859155A (en) * | 2015-05-11 | 2015-08-26 | 华东理工大学 | Method for manufacturing continuous fiber-reinforcement thermoplastic plate with three-dimensional structure |
| CN207159715U (en) * | 2017-09-21 | 2018-03-30 | 邹燕兴 | Anti- derailed rail clamp device |
-
2019
- 2019-12-12 CN CN201911293545.5A patent/CN111231370A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005072940A1 (en) * | 2004-01-14 | 2005-08-11 | Chomarat Composites | Novel reinforcing stiffening wire complex |
| CN101466535A (en) * | 2006-11-22 | 2009-06-24 | 福井县 | Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article |
| CN104859155A (en) * | 2015-05-11 | 2015-08-26 | 华东理工大学 | Method for manufacturing continuous fiber-reinforcement thermoplastic plate with three-dimensional structure |
| CN207159715U (en) * | 2017-09-21 | 2018-03-30 | 邹燕兴 | Anti- derailed rail clamp device |
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Application publication date: 20200605 |