CN114683575B - Preparation method of carbon fiber composite material track obstacle clearing device - Google Patents
Preparation method of carbon fiber composite material track obstacle clearing device Download PDFInfo
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- CN114683575B CN114683575B CN202210272248.8A CN202210272248A CN114683575B CN 114683575 B CN114683575 B CN 114683575B CN 202210272248 A CN202210272248 A CN 202210272248A CN 114683575 B CN114683575 B CN 114683575B
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 125
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 125
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000011162 core material Substances 0.000 claims abstract description 63
- 238000012545 processing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 10
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- 238000000748 compression moulding Methods 0.000 claims abstract description 6
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- 239000010410 layer Substances 0.000 claims description 114
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- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
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Classifications
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/228—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being stacked in parallel layers with fibres of adjacent layers crossing at substantial angles
-
- 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
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
Abstract
The invention belongs to the technical field of rail transit, and provides a preparation method of a carbon fiber composite material rail obstacle clearing device. The preparation method sequentially comprises the steps of obtaining a buffer core material through digital-analog numerical control processing; pre-fixing a connecting piece on the buffer core material; performing first carbon fiber prepreg layer laying; preparing a mould pressing mould, and spraying stripping wax on the inner wall of the mould; carrying out compression molding, solidification and forming; and (5) demolding the mold to obtain the track obstacle removing device. The invention has simple preparation flow and is beneficial to simplifying the preparation process of the track obstacle-removing device; and the material utilization rate is high, which is beneficial to reducing the preparation cost. The manufactured track obstacle clearing device has firm structure, is not easy to deform and has long service life; the device also has a certain buffering function, can prevent self abrasion while realizing obstacle clearance, and avoids corresponding potential safety hazards.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a preparation method of a carbon fiber composite material rail obstacle clearing device.
Background
Along with the development of road transportation industry, various rail vehicles such as motor cars, high-speed rails, subways and light rails are gradually the first choice vehicles for people to travel in long distance or short distance due to the advantages of high speed, low cost, low carbon and the like.
For various rail vehicles, since the transportation amount is large and the vehicle can only run on a single fixed rail in a single operation, it is necessary to use a specific obstacle clearance tool to clear the obstacle on the rail before the operation and to set an obstacle clearance structure on the corresponding rail vehicle. Thus ensuring the operation safety before and during operation.
For the obstacle clearing structure arranged on the rail vehicle, the obstacle clearing structure is mainly arranged on an obstacle clearing cross beam at the front part of the vehicle head. However, most of the existing barrier removal beams are simple metal beams. The metal cross beams are all welded by metal materials and can be completed through a plurality of working procedures such as machining working procedures, welding working procedures and the like. The method has the advantages of more working procedures, long period, low material utilization rate and high cost, and particularly the welding area is easy to break in the use process; therefore, the service life of the obtained obstacle clearance structure is lower. And the metal cross beam has high hardness, so that when the rail vehicle runs at high speed, the metal cross beam can collide with obstacles on the rail at high speed, the cross beam is easy to wear, and the obstacles fly out easily to bring potential safety hazards.
Disclosure of Invention
The invention aims to provide a preparation method of a carbon fiber composite material track obstacle clearing device. The preparation method is used for solving the problems of complex preparation flow and low material utilization rate of the existing obstacle clearance device; the prepared obstacle clearing device has the technical problems of low service life and potential safety hazard in use.
In order to achieve the above purpose, the present invention proposes the following technical scheme:
a preparation method of a carbon fiber composite material track obstacle clearing device comprises the following steps:
obtaining a buffer core material through digital-analog numerical control processing;
pre-fixing the connecting piece on the buffer core material, wherein the pre-fixing position corresponds to the track position;
performing first carbon fiber prepreg layer laying; a plurality of carbon fiber prepreg layers are paved on the buffer core material along the circumferential direction of the buffer core material, so that the carbon fiber prepreg layers are coated on the side circumferential wall of the buffer core material; when the carbon fiber prepreg layers are laid, each carbon fiber prepreg layer is abutted against the peripheral wall of any side of the connecting piece at the position close to the connecting piece;
preparing a mould pressing mould, and spraying stripping wax on the inner wall of the mould;
placing the structure with the carbon fiber prepreg layer laid in the mould, and carrying out compression molding, solidification and forming;
and (5) demolding the mold to obtain the track obstacle removing device.
Further, after the first carbon fiber prepreg layer is laid, the second carbon fiber prepreg layer is continued to be laid; the laying process is as follows:
performing secondary carbon fiber prepreg layer laying; continuously paving a plurality of carbon fiber prepreg layers at positions close to the connecting pieces along the circumferential direction of the buffer core material; and when the carbon fiber prepreg layers are laid, each carbon fiber prepreg layer is abutted against any side peripheral wall of the connecting piece.
Further, when the first carbon fiber prepreg layer is laid, the laying angle of the first carbon fiber prepreg layer is 45 degrees; and then, carrying out the rest layer laying, wherein the laying angles of two adjacent carbon fiber prepreg layers are 0 degree, 45 degrees, -45 degrees or 90 degrees when the carbon fiber prepreg layers are laid for the second time.
Further, when the first carbon fiber prepreg layer and the second carbon fiber prepreg layer are laid, a layer of adhesive layer is laid between the carbon fiber prepreg layer and the buffer core material and between the adjacent carbon fiber prepreg layers, respectively.
Further, the method comprises the steps of installing a fastener; the installation process is as follows:
after the die is demolded, a fastener is inserted into the die-formed structure from a position close to the connecting piece, and the other end of the fastener is inserted into the connecting piece; to form the track clearance device.
Further, the processing process of the buffer core material is as follows:
establishing a simulation model of the buffer core material on software, and setting the length of the core material in the simulation model to be 0.1-0.3 mm larger than the actual length; the width of the core material in the simulation model is 0.1-0.3 mm larger than the actual width;
loading the simulation model into a numerical control machine tool;
setting processing parameters and establishing a processing coordinate system; the processing parameters comprise processing sequence, spindle rotation speed and milling dosage; the coordinate system is a right-hand Cartesian coordinate system;
and calling a cutter to cut so as to obtain the buffer core material.
Furthermore, when a simulation model of the buffer core material is established on software, the simulation model is divided in sections.
Further, before the connector is pre-fixed to the buffer core material, the side peripheral wall of the connector is subjected to a roughness increasing treatment.
Further, after the structure with the carbon fiber prepreg layer laid is placed in the mold, resin is sprayed into the mold, wherein the material of the resin is the same as that of the carbon fiber prepreg layer.
The beneficial effects are that:
according to the technical scheme, the novel preparation method of the track obstacle-removing device is provided, so that the preparation process flow is simplified, and the preparation cost is reduced; and obtain the obstacle clearing device with better use effect.
The preparation method sequentially comprises the following steps: obtaining a buffer core material through digital-analog numerical control processing; pre-fixing a connecting piece on the buffer core material; performing first carbon fiber prepreg layer laying; preparing a mould pressing mould, and spraying stripping wax on the inner wall of the mould; carrying out compression molding, solidification and forming; and (5) demolding the mold to obtain the track obstacle removing device.
The carbon fiber prepreg layer is abutted against the side peripheral wall of the connecting piece when the carbon fiber prepreg layer is laid, because the connecting piece is pre-fixed before the carbon fiber prepreg layer is laid. At this time, after being paved, solidified and demoulded, the track barrier removing device is formed into an integrated structure. Compared with the prior metal obstacle clearing device in which the connecting piece is required to be provided with the groove at the obstacle clearing part and then the connecting piece is installed, the track obstacle clearing device is beneficial to simplifying the process flow and is suitable for mechanized production; the connection relation between the connecting piece and the obstacle clearing part is firmer, so that the track obstacle clearing device has longer service life.
The method for processing the obstacle-removing device by paving the carbon fiber prepreg layers is an additive processing method, and compared with the existing subtractive processing method such as turning and the like for the metal obstacle-removing device, the method does not generate any processing waste, and the residual carbon fiber prepreg layers can be recycled. Therefore, the method is more beneficial to improving the utilization rate of materials and reducing the production cost.
The buffer core material arranged before the carbon fiber prepreg layer is paved can further reduce the manufacturing cost of the whole obstacle clearance device, and has a certain buffer effect. Therefore, when the obstacle clearing device collides with an obstacle, the obstacle clearing device can not only prevent the obstacle from being worn, but also slow down the flying speed of the obstacle so as to prevent the obstacle from entering a driving mechanism of a rail vehicle and the like to bring potential safety hazards.
It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.
The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the invention, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a flow chart of a method of making a track barrier according to the present invention;
fig. 2 is a schematic structural view of the track barrier device according to the manufacturing method of fig. 1.
The reference numerals in the drawings are: 1 is a main body, 2 is a connecting piece, and 3 is a fastening piece; 11 is a buffer portion, and 12 is an obstacle clearing portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
The invention provides a preparation method of a carbon fiber composite material track obstacle clearing device. The preparation method comprises the following steps: obtaining a buffer core material; pre-fixing a connecting piece on the buffer core material; performing first carbon fiber prepreg layer laying; preparing a mould pressing mould, and carrying out mould pressing, curing and forming. The method has the advantages of simple preparation flow, high material utilization rate and contribution to reducing the preparation cost. The track obstacle clearing device manufactured by the method has firm structure, is not easy to deform and has long service life; the device also has a certain buffering function, can prevent self abrasion while realizing obstacle clearance, and avoids corresponding potential safety hazards.
The method for preparing the carbon fiber composite material track barrier removal device disclosed by the invention is further specifically described below with reference to the embodiment shown in fig. 1-2.
As shown in fig. 1-2, the preparation method is used for preparing the track barrier device, and comprises the following steps:
s102, obtaining a buffer core material through digital-analog numerical control processing;
in this step, the buffer core material may be a PVC core material, a PET core material or a PMI core material according to actual rigidity and strength requirements.
Since the buffer core itself has a certain amount of shrinkage, special settings are required when performing digital-to-analog numerical control processing in order to ensure the effectiveness of the buffering action. Specifically, the processing steps of the buffer core material include:
firstly, establishing a simulation model of the buffer core material on software, and setting the length of the core material in the simulation model to be 0.1-0.3 mm larger than the actual length; the width of the core material in the simulation model is 0.1-0.3 mm larger than the actual width; the software is professional drawing software such as CAD and the like;
secondly, loading the simulation model into a numerical control machine tool;
then, setting processing parameters and establishing a processing coordinate system; the processing parameters comprise processing sequence, spindle rotation speed and milling dosage; the coordinate system is a right-hand Cartesian coordinate system;
and finally, calling a cutter to cut so as to obtain the buffer core material.
In this step, since the obstacle clearing device is of a long rod type structure, the processed buffer core material may be an integral buffer core material consistent with the target size of the obstacle clearing device. In order to reduce the preparation cost, a plurality of shorter core materials can be obtained by processing; and then splicing the shorter core materials according to the requirements.
In this way, when the simulation model is built by software, the simulation model is divided into segments according to the actual length, the actual width, and the like.
S104, pre-fixing the connecting piece on the buffer core material, wherein the pre-fixing position corresponds to the track position;
in the step, the connecting piece is formed by processing light metal through digital-analog numerical control. The light metal is specifically an aluminum alloy.
And before the connecting piece is pre-fixed, carrying out decontamination or rust removal treatment on the surface of the connecting piece. And in order to increase the firmness of connection between the connecting piece and the laying structure after the subsequent carbon fiber prepreg layer is laid, the side peripheral wall of the connecting piece is further subjected to roughness increasing treatment so as to increase the friction effect between the connecting piece and the laying structure.
In this step, the specific process of the roughness increasing treatment may be sand blasting, surface embossing, or the like.
In this step, the connecting member is pre-fixed on the buffer core material by an adhesive film.
S106, performing first carbon fiber prepreg layer laying; a plurality of carbon fiber prepreg layers are paved on the buffer core material along the circumferential direction of the buffer core material, so that the carbon fiber prepreg layers are coated on the side circumferential wall of the buffer core material; when the carbon fiber prepreg layers are laid, each carbon fiber prepreg layer is abutted against the peripheral wall of any side of the connecting piece at the position close to the connecting piece;
in this step, after the first carbon fiber prepreg layer is laid, a prefabricated carbon fiber structure of equal thickness is formed on the side peripheral wall of the buffer core material. When the carbon fiber prepreg layers are paved, each carbon fiber prepreg layer is abutted against the peripheral wall of any side of the connecting piece; the carbon fiber prepreg layer will thus form a limit fix for the connection. Thereby increasing the firmness among the structures of the obtained obstacle clearing device.
In this embodiment, the thickness of each carbon fiber prepreg layer is 0.2 mm to 0.3 mm. The thickness of the equal-thickness prefabricated carbon fiber structure obtained after the first carbon fiber prepreg layer is paved is 3 mm-5 mm, and the equal-thickness prefabricated carbon fiber structure comprises 15-25 carbon fiber prepreg layers.
When the carbon fiber prepreg layers are laid, the related personnel should wear corresponding protective tools such as protective gloves, goggles and gas masks; and is performed in a ventilated environment. So as to prevent the related harmful solvent and gas from damaging human body.
S108, preparing a mould pressing mould, and spraying stripping wax on the inner wall of the mould;
in this step, the release wax will not be confused with the carbon fiber prepreg layer nor harden. Therefore, the solidified structure can be smoothly taken out from the die while the die pressing fixation of the carbon fiber prepreg layer is not disturbed.
S110, placing the structure with the carbon fiber prepreg layer laid in the mold, and performing compression molding, curing and forming;
in this step, the compression molding, curing and forming are performed in a hot press. In order to make the structure after the solidification forming more complete, after the structure for completing the laying of the carbon fiber prepreg layer is placed in the mold, resin can be sprayed into the mold, so that any gap of the mold is fully filled. And during the curing process the resin will cure with the carbon fiber prepreg layer. And based on the similar principle of intermiscibility, the material of the resin is the same as that of the carbon fiber prepreg layer.
S112, demolding the mold to obtain the track obstacle clearing device.
In the preparation method, the connecting piece is pre-fixed before the carbon fiber prepreg layer is laid, and the carbon fiber prepreg layer is abutted against the side peripheral wall of the connecting piece during the laying of the carbon fiber prepreg layer. At this time, after being paved, solidified and demoulded, the track barrier removing device is formed into an integrated structure. Compared with the prior metal barrier removing device in which the connecting piece is required to be provided with the groove firstly and then is installed, the track barrier removing device is beneficial to simplifying the process flow and is suitable for mechanized production; the connection relation between the connecting piece and the main body is firmer, so that the track obstacle-removing device has longer service life.
The method for processing the obstacle-removing device by paving the carbon fiber prepreg layers is an additive processing method, and compared with the existing subtractive processing method such as turning and the like for the metal obstacle-removing device, the method does not generate any processing waste, and the residual carbon fiber prepreg layers can be recycled. Therefore, the method is more beneficial to improving the utilization rate of materials and reducing the production cost.
The buffer core material arranged before the carbon fiber prepreg layer is paved can further reduce the manufacturing cost of the whole obstacle clearance device, and has a certain buffer effect. Therefore, when the obstacle clearing device collides with an obstacle, the obstacle clearing device can not only prevent the obstacle from being worn, but also slow down the flying speed of the obstacle so as to prevent the obstacle from entering a driving mechanism of a rail vehicle and the like to bring potential safety hazards.
In order to increase the impact resistance of the obstacle clearance device when the obstacle clearance device collides with an obstacle, after the first carbon fiber prepreg layer is paved, the second carbon fiber prepreg layer is continuously paved; the laying process is as follows:
s107, performing secondary carbon fiber prepreg layer laying; continuously paving a plurality of carbon fiber prepreg layers at positions close to the connecting pieces along the circumferential direction of the buffer core material; and when the carbon fiber prepreg layers are laid, each carbon fiber prepreg layer is abutted against any side peripheral wall of the connecting piece.
In this step, after the second carbon fiber prepreg layer is laid, a thickened prefabricated carbon fiber structure is formed at the corresponding position of the side peripheral wall of the buffer core material.
In this embodiment, the thickness of the thickened prefabricated carbon fiber structure is 5 mm-7 mm, and the thickened prefabricated carbon fiber structure comprises 25-35 carbon fiber prepreg layers.
In order to increase the shear strength between the carbon fiber prepreg layers, in step S106, the first carbon fiber prepreg layer is laid at a laying angle of 45 degrees; and then, performing the rest layer laying in the step S106, and when the carbon fiber prepreg layers are laid for the second time in the step S107, the laying angles of the two adjacent carbon fiber prepreg layers are 0 degrees, 45 degrees, -45 degrees or 90 degrees. At this time, the carbon fiber prepreg layers will be laid up in a staggered configuration. Defining the laying angle as an included angle between every two adjacent carbon fiber prepreg layers on a horizontal plane; the horizontal plane is defined as the plane in which the upper surface or the lower surface of each carbon fiber prepreg layer is located.
In order to increase the bonding strength between the buffer core material and the carbon fiber prepreg layer and between the carbon fiber prepreg layers, when the first carbon fiber prepreg layer in step S106 and the second carbon fiber prepreg layer in step S107 are laid, a bonding layer is further laid between the carbon fiber prepreg layer and the buffer core material and between the adjacent carbon fiber prepreg layers. Specifically, a first adhesive layer is laid between the carbon fiber prepreg layers and the buffer core material, and a second adhesive layer is also laid between the adjacent carbon fiber prepreg layers in sequence.
The first adhesive layer and the second adhesive layer are adhesive films.
In order to further increase the service life of the track barrier, the preparation method further comprises:
s114, after the die is demolded, inserting a fastener into the die-formed structure from a position close to the connecting piece, and inserting the other end of the fastener into the connecting piece; to form the track clearance device.
As shown in fig. 2, the obstacle-removing device is obtained according to the preparation method. The obstacle clearance device is fixed at the front end lower part of the locomotive when in use and comprises a main body 1 and a connecting piece 2.
In the specific structural design of the main body 1, the main body 1 includes a buffer portion 11 and an obstacle clearance portion 12, and the obstacle clearance portion 12 is coated on the outer side wall of the buffer portion 11.
In a specific implementation, the obstacle clearing part 12 is in direct contact with an obstacle, and is formed by laying carbon fiber prepreg layers, so that the whole obstacle clearing device has the advantages of lighter weight and higher strength, and is not easy to deform when colliding with the obstacle. The buffer part 11 formed by the buffer core material is further arranged in the obstacle clearance part 12, so that when an obstacle is encountered, the buffer part 11 can buffer the high-speed collision process of the two parts so as to reduce the speed of the obstacle when the obstacle flies out and prevent the obstacle from entering a driving mechanism of a train to generate potential safety hazards; and reduces wear on the entire barrier.
The obstacle clearing device comprises a thickening area and an equal-thickness area, wherein the thickening area corresponds to the track and is formed by stacking a first carbon fiber prepreg layer and a second carbon fiber prepreg layer; the equal thickness region is formed by stacking first carbon fiber prepreg layers. This arrangement effectively increases the strength of the obstacle clearance device when it collides with an obstacle.
In this embodiment, the thickness of the thickened area is 5 mm-7 mm, and the thickened area comprises 25-35 carbon fiber prepreg layers; the thickness of the equal-thickness area is 3 mm-5 mm, and the equal-thickness area comprises 15-25 carbon fiber prepreg layers.
The first adhesive layer between the buffer portion 11 and the obstacle clearance portion 12 increases the overall life and strength of the main body 1. In this embodiment, the first adhesive layer is specifically an adhesive film.
The specific material of the connecting piece 2 is a light metal material. In this embodiment, the light metal material is specifically an aluminum alloy, which has the advantages of light weight and corrosion resistance. Compared with the connecting piece in the existing metal obstacle clearing device, the connecting piece is more firmly connected with the main body. Thereby making the service life of the obstacle-removing device longer.
The fastener 3 is inserted into the obstacle clearance part 12 and fixed with the connecting piece 2. The mounting fastness of the connector 2 is further increased. The fastener 3 may be a countersunk bolt or countersunk head drawing pin, etc.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Claims (8)
1. The preparation method of the carbon fiber composite material track obstacle clearing device is characterized by comprising the following steps of:
obtaining a buffer core material through digital-analog numerical control processing;
pre-fixing the connecting piece on the buffer core material, wherein the pre-fixing position corresponds to the track position;
performing first carbon fiber prepreg layer laying; a plurality of carbon fiber prepreg layers are paved on the buffer core material along the circumferential direction of the buffer core material, so that the carbon fiber prepreg layers are coated on the side circumferential wall of the buffer core material; when the carbon fiber prepreg layers are laid, each carbon fiber prepreg layer is abutted against the peripheral wall of any side of the connecting piece at the position close to the connecting piece;
performing secondary carbon fiber prepreg layer laying; continuously paving a plurality of carbon fiber prepreg layers at positions close to the connecting pieces along the circumferential direction of the buffer core material; when the carbon fiber prepreg layers are paved, each carbon fiber prepreg layer is abutted against the peripheral wall of any side of the connecting piece;
preparing a mould pressing mould, and spraying stripping wax on the inner wall of the mould;
placing the structure with the carbon fiber prepreg layer laid in the mold, and performing compression molding, curing and forming;
demolding the mold to obtain the track obstacle removing device; the obstacle clearing device comprises a thickening area and an equal-thickness area, wherein the thickening area corresponds to the track and is formed by stacking a first carbon fiber prepreg layer and a second carbon fiber prepreg layer; the equal-thickness area is formed by stacking first carbon fiber prepreg layers; the thickness of the thickening area is 5-7 mm, and the thickness of the equal-thickness area is 3-5 mm.
2. The method for manufacturing a carbon fiber composite material track obstacle-removing device according to claim 1, wherein the laying angle of the first carbon fiber prepreg layer is 45 degrees when the first carbon fiber prepreg layer is laid; and then, carrying out the rest layer laying, wherein the laying angles of two adjacent carbon fiber prepreg layers are 0 degree, 45 degrees, -45 degrees or 90 degrees when the carbon fiber prepreg layers are laid for the second time.
3. The method for manufacturing a carbon fiber composite material track barrier removal device according to claim 1, wherein when the first carbon fiber prepreg layer and the second carbon fiber prepreg layer are laid, a layer of adhesive layer is laid between the carbon fiber prepreg layer and the buffer core material and between the adjacent carbon fiber prepreg layers, respectively.
4. The method of manufacturing a carbon fiber composite track barrier according to claim 1, comprising installing fasteners; the installation process is as follows:
after the die is demolded, a fastener is inserted into the die-formed structure from a position close to the connecting piece, and the other end of the fastener is inserted into the connecting piece; to form the track clearance device.
5. The method for manufacturing the carbon fiber composite material track barrier removal device according to claim 1, wherein the processing procedure of the buffer core material is as follows:
establishing a simulation model of the buffer core material on software, and setting the length of the core material in the simulation model to be 0.1-0.3 mm larger than the actual length; the width of the core material in the simulation model is 0.1-0.3 mm larger than the actual width;
loading the simulation model into a numerical control machine tool;
setting processing parameters and establishing a processing coordinate system; the processing parameters comprise processing sequence, spindle rotation speed and milling dosage; the coordinate system is a right-hand Cartesian coordinate system;
and calling a cutter to cut so as to obtain the buffer core material.
6. The method for manufacturing a carbon fiber composite material track obstacle-removing device according to claim 5, wherein the simulation model of the buffer core material is divided in segments when the simulation model is built on software.
7. The method for manufacturing a carbon fiber composite material track barrier removal device according to claim 1, wherein the side peripheral wall of the connecting member is subjected to a roughness-increasing treatment before the connecting member is pre-fixed to the buffer core material.
8. The method for manufacturing a carbon fiber composite material track obstacle clearing device according to claim 1, wherein after the structure in which the carbon fiber prepreg layer is laid is placed in the mold, resin is sprayed into the mold, and the material of the resin is the same as that of the carbon fiber prepreg layer.
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113058A1 (en) * | 2003-06-25 | 2004-12-29 | Joseph Steven Egan | Method of construction of moulded products |
| CN103741238A (en) * | 2014-01-24 | 2014-04-23 | 四川省新万兴碳纤维复合材料有限公司 | Centrifugal cylinder made of carbon fiber composite materials and method for manufacturing centrifugal cylinder |
| CN103991224A (en) * | 2014-05-27 | 2014-08-20 | 西安航天复合材料研究所 | Method for improving finished product rate of fiber cloth mould-pressing composite products |
| CN105904740A (en) * | 2016-04-14 | 2016-08-31 | 航天材料及工艺研究所 | Integral manufacturing method of composite material light continuous fiber grid |
| JP2017030165A (en) * | 2015-07-29 | 2017-02-09 | 株式会社イノアックコーポレーション | Carbon fiber composite material, and method of manufacturing the same |
| CN106414069A (en) * | 2014-06-04 | 2017-02-15 | 布莱特利特结构公司 | Multicomponent polymer resin, methods for applying the same, and composite laminate structure including the same |
| CN107214977A (en) * | 2017-07-31 | 2017-09-29 | 江苏恒神股份有限公司 | The carbon fibre composite subway vehicle body and its manufacture method of a kind of low cost process shaping |
| CN108215241A (en) * | 2016-12-13 | 2018-06-29 | 航天特种材料及工艺技术研究所 | A kind of polymer matrix composites quick molding method |
| JP6401413B1 (en) * | 2018-03-05 | 2018-10-10 | 株式会社Ｔｈｅ ＭＯＴ Ｃｏｍｐａｎｙ | Method for producing metal-fiber reinforced resin composite molded body |
| WO2019021537A1 (en) * | 2017-07-25 | 2019-01-31 | 株式会社Ｓｕｂａｒｕ | Composite material molding jig and composite material molding method |
| CN109353032A (en) * | 2018-11-19 | 2019-02-19 | 苏州银禧新能源复合材料有限公司 | Battery lower box and its moulding process |
| CN111086240A (en) * | 2019-12-23 | 2020-05-01 | 中国电子科技集团公司第三十三研究所 | Vacuum heating device and process for equipment cabin for integrally forming and preparing composite material |
| CN111186144A (en) * | 2019-12-26 | 2020-05-22 | 天津爱思达新材料科技有限公司 | Ablation-resistant composite material launching tube body structure and forming method thereof |
| CN111873448A (en) * | 2020-07-17 | 2020-11-03 | 东莞皓宇智能复合材料有限公司 | Manufacturing method of composite material hub and product |
| CN112477192A (en) * | 2020-10-22 | 2021-03-12 | 南京东聚碳纤维复合材料研究院有限公司 | Forming method of high-rigidity conical-structure carbon fiber composite material pipe |
| CN113685034A (en) * | 2021-10-25 | 2021-11-23 | 北京玻钢院复合材料有限公司 | Carbon fiber composite material pump truck arm support and preparation method thereof |
| CN113733595A (en) * | 2021-08-30 | 2021-12-03 | 北京航空航天大学 | Processing method of fully-wrapped composite material foam sandwich wing rib |
| CN114103163A (en) * | 2021-11-14 | 2022-03-01 | 中国电子科技集团公司第五十四研究所 | Integral manufacturing method of special-shaped carbon fiber horn of rotor unmanned aerial vehicle |
-
2022
- 2022-03-18 CN CN202210272248.8A patent/CN114683575B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113058A1 (en) * | 2003-06-25 | 2004-12-29 | Joseph Steven Egan | Method of construction of moulded products |
| CN103741238A (en) * | 2014-01-24 | 2014-04-23 | 四川省新万兴碳纤维复合材料有限公司 | Centrifugal cylinder made of carbon fiber composite materials and method for manufacturing centrifugal cylinder |
| CN103991224A (en) * | 2014-05-27 | 2014-08-20 | 西安航天复合材料研究所 | Method for improving finished product rate of fiber cloth mould-pressing composite products |
| CN106414069A (en) * | 2014-06-04 | 2017-02-15 | 布莱特利特结构公司 | Multicomponent polymer resin, methods for applying the same, and composite laminate structure including the same |
| JP2017030165A (en) * | 2015-07-29 | 2017-02-09 | 株式会社イノアックコーポレーション | Carbon fiber composite material, and method of manufacturing the same |
| CN105904740A (en) * | 2016-04-14 | 2016-08-31 | 航天材料及工艺研究所 | Integral manufacturing method of composite material light continuous fiber grid |
| CN108215241A (en) * | 2016-12-13 | 2018-06-29 | 航天特种材料及工艺技术研究所 | A kind of polymer matrix composites quick molding method |
| WO2019021537A1 (en) * | 2017-07-25 | 2019-01-31 | 株式会社Ｓｕｂａｒｕ | Composite material molding jig and composite material molding method |
| CN107214977A (en) * | 2017-07-31 | 2017-09-29 | 江苏恒神股份有限公司 | The carbon fibre composite subway vehicle body and its manufacture method of a kind of low cost process shaping |
| JP6401413B1 (en) * | 2018-03-05 | 2018-10-10 | 株式会社Ｔｈｅ ＭＯＴ Ｃｏｍｐａｎｙ | Method for producing metal-fiber reinforced resin composite molded body |
| CN109353032A (en) * | 2018-11-19 | 2019-02-19 | 苏州银禧新能源复合材料有限公司 | Battery lower box and its moulding process |
| CN111086240A (en) * | 2019-12-23 | 2020-05-01 | 中国电子科技集团公司第三十三研究所 | Vacuum heating device and process for equipment cabin for integrally forming and preparing composite material |
| CN111186144A (en) * | 2019-12-26 | 2020-05-22 | 天津爱思达新材料科技有限公司 | Ablation-resistant composite material launching tube body structure and forming method thereof |
| CN111873448A (en) * | 2020-07-17 | 2020-11-03 | 东莞皓宇智能复合材料有限公司 | Manufacturing method of composite material hub and product |
| CN112477192A (en) * | 2020-10-22 | 2021-03-12 | 南京东聚碳纤维复合材料研究院有限公司 | Forming method of high-rigidity conical-structure carbon fiber composite material pipe |
| CN113733595A (en) * | 2021-08-30 | 2021-12-03 | 北京航空航天大学 | Processing method of fully-wrapped composite material foam sandwich wing rib |
| CN113685034A (en) * | 2021-10-25 | 2021-11-23 | 北京玻钢院复合材料有限公司 | Carbon fiber composite material pump truck arm support and preparation method thereof |
| CN114103163A (en) * | 2021-11-14 | 2022-03-01 | 中国电子科技集团公司第五十四研究所 | Integral manufacturing method of special-shaped carbon fiber horn of rotor unmanned aerial vehicle |
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|---|---|
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