CN115647759B - High-speed rail top cover plate reinforcing rib and integral extrusion molding process thereof - Google Patents
High-speed rail top cover plate reinforcing rib and integral extrusion molding process thereof Download PDFInfo
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- CN115647759B CN115647759B CN202211390726.1A CN202211390726A CN115647759B CN 115647759 B CN115647759 B CN 115647759B CN 202211390726 A CN202211390726 A CN 202211390726A CN 115647759 B CN115647759 B CN 115647759B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 39
- 238000007788 roughening Methods 0.000 claims abstract description 46
- 230000035882 stress Effects 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 230000032683 aging Effects 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
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- 238000011068 loading method Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000004513 sizing Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 36
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- 238000000429 assembly Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
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- 150000002739 metals Chemical class 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
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- 239000003351 stiffener Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 1
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- 206010017076 Fracture Diseases 0.000 abstract description 4
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- Extrusion Of Metal (AREA)
Abstract
The invention discloses an integral extrusion molding process of a high-speed rail top cover plate reinforcing rib, which comprises the following steps: s1: selecting materials and heating; s2: extruding into a profile through extrusion equipment; s3: cooling and quenching; s4: detecting, sizing and sawing, and carrying out finish machining through roughening equipment; s5: and (5) loading in a basket and carrying out aging treatment. Compared with the traditional cold bending stamping forming, the invention adopts the hot die extrusion mode to manufacture the reinforcing ribs, and after material selection, the internal stress of the material is decomposed by heating, so that the stress is conveniently released during extrusion, the rebound is reduced, the stability of the profile is improved, meanwhile, the toughness of the profile can be increased at high temperature, the situation that the internal stress cannot be released in the traditional stamping process and is easy to break after long-time use is avoided, and meanwhile, the aging treatment is needed for the profile during the later application, so that the internal stress of the profile is further released, the toughness of the profile is increased, and the fracture risk is reduced.
Description
Technical Field
The invention relates to the technical field of reinforcing rib forming processes, in particular to a high-speed rail top cover plate reinforcing rib and an integral extrusion forming process thereof.
Background
The strengthening rib that adopts on the top apron of present high-speed railway all is through punching press one shot forming, later welds, and though production efficiency is high, but when using for a long time, the internal stress of strengthening rib that the punching press caused can't release in time, along with the operation of train, the top apron jolts for a long time and under the circumstances of lasting atress, the crack appears very easily to the strengthening rib, consequently need frequent maintenance, change, life is short and then cause the maintenance cost of high-speed railway to rise, local heating also leads to the strengthening rib atress of this just existence internal stress more inhomogeneous during the welding, further reduced the life of strengthening rib. Therefore, how to reduce the internal stress of the reinforcing rib, so that the internal stress of the reinforcing rib can be released in the production process, the fracture risk of the reinforcing rib is reduced, and the toughness and the service life of the reinforcing rib are improved. Therefore, there is a need for a high-speed rail roof deck profile stiffener and an integral extrusion process thereof that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to at least partially solve the problems, the invention provides an integral extrusion molding process of a high-speed rail top cover plate reinforcing rib, which comprises the following steps:
s1: selecting materials and heating;
s2: extruding into a profile through extrusion equipment;
s3: cooling and quenching;
s4: detecting, sizing and sawing, and carrying out finish machining through roughening equipment;
s5: and (5) loading in a basket and carrying out aging treatment.
Preferably, step S1 includes:
s101: selecting consumable metals;
s102: sawing;
s103: and heating the consumable metal.
Preferably, in step S101, when selecting consumable metals, it is necessary to perform component analysis and perform a low-power experiment.
Preferably, in step S101, the consumable metal is an aluminum rod, and the heating temperature of the consumable metal in step S103 is 470 ℃ to 510 ℃.
Preferably, the step S1 is carried out, the die is detected in advance, the die is heated and raised after detection, when the temperature of the die is raised to 420-510 ℃, the step S2 is started, and the heated consumable metal is extruded into the profile through extrusion equipment by the die.
Preferably, in step S3, the extruded high-temperature profile is quenched and simultaneously air-cooled.
Preferably, in step S4,
s401: the cooled section bar is subjected to interrupt operation according to the required length;
s402: checking the size and the surface finish of the steel plate;
s403: after twice straightening treatment, fixed-length sawing is carried out;
s404: the roughening treatment of the whole and sawing ends is carried out through roughening equipment;
s405: spraying antirust paint on the roughened finished section bar, and sampling and inspecting the size, the gap, the bending and the twisting of the finished section bar.
Preferably, the aging treatment in step S5: the profile is heated to 195.+ -. 5 ℃ before application and kept for 2 hours, and is treated in ageing according to the hardness of the required profile.
Preferably, the roughening equipment comprises a box body, a conveying device, at least two groups of roughening assemblies and a dust collection assembly; the roughening assembly and the dust collection assembly are both arranged in the box body, the conveying device penetrates through the box body, a plurality of sand blasting brush hair assemblies are arranged on the roughening assembly,
the conveying device is used for conveying the section bar to be roughened;
the roughening assembly is positioned in front of the dust collection assembly and is used for roughening the section bar through the sand blasting bristle assembly;
the dust collection assembly is used for absorbing sand and metal slag on the section bar.
A high-speed railway top cover plate abnormal-shaped reinforcing rib manufactured by an integral extrusion molding process, comprising: end reinforcing ribs, middle reinforcing ribs and longitudinal beam reinforcing ribs; the end reinforcing ribs and the longitudinal beam reinforcing ribs are respectively arranged on two opposite side edges of the top cover plate, and the middle reinforcing rib is arranged between the two longitudinal beam reinforcing ribs and is positioned on the top surface of the top cover plate.
Compared with the prior art, the invention at least comprises the following beneficial effects:
compared with the traditional cold bending stamping forming, the invention adopts the hot die extrusion mode to manufacture the reinforcing ribs, and after material selection, the internal stress of the material is decomposed by heating, so that the stress is conveniently released during extrusion, the rebound is reduced, the stability of the profile is improved, meanwhile, the toughness of the profile can be increased at high temperature, the situation that the internal stress cannot be released in the traditional stamping process and is easy to break after long-time use is avoided, and meanwhile, the aging treatment is needed for the profile during the later application, so that the internal stress of the profile is further released, the toughness of the profile is increased, and the fracture risk is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a process diagram of integral extrusion molding of a high-speed rail top cover plate reinforcing rib according to the invention.
Fig. 2 is a detailed process diagram of an integral extrusion molding process of the high-speed rail top cover plate reinforcing rib.
Fig. 3 is a schematic structural view of an extrusion device in an integral extrusion molding process of the high-speed rail top cover plate reinforcing rib.
Fig. 4 is a schematic drawing of extrusion of a forming roller in the integral extrusion process of the reinforcing rib of the top cover plate of the high-speed rail.
Fig. 5 is a schematic diagram of the molding of the profile in the integral extrusion molding process of the high-speed rail top cover plate reinforcing rib.
Fig. 6 is a schematic structural diagram of roughening equipment in the integral extrusion molding process of the high-speed rail top cover plate reinforcing rib.
Fig. 7 is a schematic view of the structure of the inside of fig. 6.
Fig. 8 is a schematic view of the internal structure of a sandblasted bristle assembly (not shown) in the process of integrally extruding the reinforcing ribs of the top cover plate of the high-speed rail according to the present invention.
Fig. 9 is a cross-sectional view of fig. 8.
Fig. 10 is a schematic view of the direction adjustment of the sandblasted bristle assembly (brush not shown) in the integral extrusion process of the high-speed rail top cover plate reinforcing rib according to the present invention.
Fig. 11 is a schematic view of the location of the high-speed rail roof deck stiffener according to the present invention.
In the figure: the device comprises a pressing device 1, a forming bending roller 2, a stress releasing roller 3, a roughening device 4, a box 41, a conveying device 42, a dust collection assembly 43, a fixing frame 44, a driving motor 45, a gear shaft 46, a sand blasting brush bristle assembly 5, a fixing tube 51, a spherical shaft sleeve 52, a rotary shaft tube 53, a brush 54, a bearing 55, an anti-collision ring 56, a reinforcing rib 6 at the end part, a reinforcing rib 7 at the middle part and a reinforcing rib 8 at the longitudinal beam.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 10, the invention provides an integral extrusion molding process of a reinforcing rib, which comprises the following steps:
s1: selecting materials and heating;
s2: extruding into a profile by an extrusion device 1;
s3: cooling and quenching;
s4: detecting, sizing and sawing, and carrying out finish machining through a roughening device 4;
s5: and (5) loading in a basket and carrying out aging treatment.
The technical scheme has the working principle and beneficial effects that: compared with the traditional cold bending stamping forming, the invention adopts the hot die extrusion mode to manufacture the reinforcing ribs, and after material selection, the internal stress of the material is decomposed by heating, so that the stress is conveniently released during extrusion, the rebound is reduced, the stability of the profile is improved, meanwhile, the toughness of the profile can be increased at high temperature, the situation that the internal stress cannot be released in the traditional stamping process and is easy to break after long-time use is avoided, and meanwhile, the aging treatment is needed for the profile during the later application, so that the internal stress of the profile is further released, the toughness of the profile is increased, and the fracture risk is reduced.
In one embodiment, step S1 includes:
s101: selecting consumable metal, wherein the consumable metal is an aluminum bar, and when the consumable metal is selected, component analysis and low-power experiments are required to be carried out on the consumable metal;
s102: sawing;
s103: and heating consumable metal at 470-510 ℃.
And (2) detecting the die in advance while carrying out the step (S1), heating the die after detection, and when the temperature of the die is raised to 420-510 ℃, starting to carry out the step (S2), and extruding the heated consumable metal into the profile through the extrusion equipment (1).
The extrusion equipment 1 includes a plurality of shaping curved roll 2 and stress relief roller 3, shaping curved roll 2 is sharp range, the metal of preliminary shaping through the mould loops through shaping curved roll 2 and bends the processing to finally reach stress relief roller 3, be provided with heating equipment on the shaping curved roll 2 and be used for heating for shaping curved roll 2, thereby keep the temperature of metal, reduce rebound stress, stress relief roller 3 is the cross setting for four design gyro wheels, thereby ensure that the four sides of metal all can contact with it, the design gyro wheel is provided with heating equipment equally and is used for heating, thereby further intensify to extruded section bar, release its inside stress, reduce the resilience volume of section bar.
In step S3, the extruded high-temperature profile is quenched and simultaneously air-cooled. In the step S4 of the process of the present invention,
s401: the cooled section bar is subjected to interrupt operation according to the required length;
s402: checking the size and the surface finish of the steel plate;
s403: after twice straightening treatment, fixed-length sawing is carried out;
s404: the roughening treatment of the whole and sawing ends is carried out by a roughening device 4;
s405: spraying antirust paint on the roughened finished section bar, and sampling and inspecting the size, the gap, the bending and the twisting of the finished section bar.
Aging treatment in step S5: the profile is heated to 195.+ -. 5 ℃ before application and kept for 2 hours, and is treated in ageing according to the hardness of the required profile.
The technical scheme has the working principle and beneficial effects that: in the embodiment, the aluminum bar is taken as consumable metal as an example, firstly, component analysis is needed to be carried out on the aluminum bar, low-power experiments are carried out, then sawing is carried out according to the requirements, then the aluminum bar is heated to 470-510 ℃ so as to accelerate stress release in the subsequent extrusion process, rebound deformation of extruded profile is avoided, the extrusion die is heated and warmed while the aluminum bar is heated, temperature difference between the aluminum bar and the die piece is avoided when the aluminum bar is extruded, meanwhile, the high-temperature die can maintain high temperature for the aluminum bar in the extrusion process, stress release of the aluminum bar is assisted, and metal which is preliminarily molded by the die can be sent to extrusion equipment 1 for extrusion and shaping; the high-temperature metal is gradually extruded by a plurality of forming bending rollers 2 to be deformed into a required shape, when the forming bending rollers 2 extrude the metal, heating equipment can continuously heat the forming bending rollers 2, so that the metal is kept at high temperature in the extrusion deformation process, the metal enters the stress release roller 3 after being extruded into a specified shape, four shaping rollers capable of heating can be cross-shaped to extrude the profile, final heating and shaping are carried out, the shaping rollers can enclose a rectangle, thereby not only having the functions of extrusion, deformation and limiting on the profile, but also having the function of uniformly heating the profile, preventing the profile from being heated unevenly, the internal stress can be released along with heat under a high-temperature environment, then an annealing process is realized, the profile after cooling and quenching is interrupted according to the length requirement, then the surface finish and the size of the profile are inspected, the profile after inspection is subjected to straightening treatment twice, sawing can be carried out according to the corresponding size, the profile is subjected to the whole and end sawing treatment, the profile is subjected to the rolling and rolling treatment of the profile is subjected to the rolling and rolling treatment of the rolling and the rolling resistance of the profile is carried out to the rust-proof and rust-proof coating (the metal is generally 600 ℃ and the rust-proof and anti-corrosion coating is subjected to the rolling and rust-proof and the rust-resistant size is 600 ℃ when the metal is subjected to the rolling and the rust-resistant coating is subjected to the rolling and the rust-proof and the anti-rust coating is 600 is at the sample. After the inspection is qualified, the finished product profile is put into a basket for standby, when the finished product profile is welded to a cover plate at the top of a high-speed rail, the finished product profile is firstly heated to 195+/-5 ℃, meanwhile, the heat preservation is carried out for 2 hours, the internal stress is further released, so that the profile can have enough toughness under the condition of keeping enough hardness and rigidity, further, the profile is prevented from being broken in the future application, the hardness of the finished product profile is different in the processes of heating, heat preservation and cooling, and the finished product profile is treated in aging according to the hardness of the required profile during welding.
In one embodiment, the roughening apparatus 4 comprises a housing 41, a conveyor 42, at least two sets of roughening and dust collection assemblies 43; the roughening component and the dust collection component 43 are both arranged in the box 41, the conveying device 42 penetrates through the box 41, a plurality of sand blasting brush hair components 5 are arranged on the roughening component,
the conveying device 42 is used for conveying the section bar to be roughened;
the roughening assembly is positioned in front of the dust collection assembly 43 and is used for roughening the profile through the sand blasting bristle assembly 5;
the dust collection assembly 43 is used to absorb sand and metal slag from the profile.
The technical scheme has the working principle and beneficial effects that: the section bar to be roughened is placed on the conveying device 42 of the roughening equipment 4, the conveying device 42 can be a conveying belt driven by driving rollers, the abnormal section bar is transported on the conveying belt, after passing through two adjacent driving rollers, the section bar can enter the lower parts of two groups of roughening assemblies sequentially after entering the box 41 to realize the overturning effect, the sanding is performed through the sand blasting bristle assembly 5 on the roughening assembly to remove larger metal impurities (such as burrs at sawing ends), the surface smooth after extrusion is roughened, so that the subsequent spraying operation is facilitated, then the dust collection assembly 43 is reached to absorb sand and metal slag, finally the box 41 is transported out, and the damage and pollution to workers and the environment caused by impurity diffusion can be avoided.
In one embodiment, the roughening assembly comprises a fixing frame 44, a driving motor 45, a plurality of gear shafts 46 and a plurality of sand blasting bristle assemblies 5, wherein the fixing frame 44 is arranged on the inner wall of the box 41, the driving motor 45 and the gear shafts 46 are arranged at the top of the fixing frame 44, the bottoms of the gear shafts 46 penetrate through the fixing frame 44 and are connected with the sand blasting bristle assemblies 5 through flexible couplings, sand blasting pipes are arranged on the sand blasting bristle assemblies 5, and penetrate through the fixing frame 44 and the box 41 and are communicated with a sand supplying device. The sand blasting brush assembly 5 comprises a fixed pipe 51, a spherical shaft sleeve 52, a rotary shaft pipe 53 and a brush 54; the fixed pipe 51 sets up the bottom of mount 44, the outer wall of spherical axle sleeve 52 with the inner wall swing joint of fixed pipe 51, the inner wall of spherical axle sleeve 52 is provided with bearing 55, rotatory central siphon 53 pass through bearing 55 with the inner wall connection of spherical axle sleeve 52, brush 54 sets up on the outer wall of rotatory central siphon 53 to be located the bottom of spherical axle sleeve 52, the bottom lateral wall of rotatory central siphon 53 is provided with anticollision ring 56, brush 54 is located the outside of anticollision ring 56, the bottom of rotatory central siphon 53 is provided with the sandblast mouth, be provided with the passageway in the rotatory central siphon 53, the top of rotatory central siphon 53 is passed through flexible coupling with the bottom of gear shaft 46 is connected, the sandblast mouth pass through the passageway with the sandblast pipe intercommunication.
The technical scheme has the working principle and beneficial effects that: when the profile enters the roughening assembly, the anti-collision ring 56 of the rotary shaft tube 53 can be impacted, because the outer wall of the spherical shaft sleeve 52 is spherical and is movably connected with the inner wall of the fixed tube 51, the rotary shaft tube 53 can rotate, the direction of the hairbrush 54 can be adjusted while the rotary shaft tube 53 rotates, the hairbrush 54 surrounds the outer side of the rotary shaft tube 53, so that after the rotary shaft tube 53 is pushed to a position where the profile is not affected, the hairbrush 54 just can be in a vertical state with the profile, the profile firstly sinks into the gap when passing through the gap between two driving rollers in the transmission process, and then is lifted, turned over and transported to the next gap, the anti-collision ring 56 can be impacted in the process of turning over the profile, so that the direction of the rotary shaft tube 53 is changed, the sand blasting bristle assembly 5 can simultaneously realize sand blasting, impurity removal and roughening effects, and the driving motor 45 positioned on the fixing frame 44 can be connected with the gear shaft 46 through a driving belt, so that the driving motor 45 drives the gear shaft 46 on the fixing frame 44 to simultaneously rotate, the bottom of the gear shaft 46 and the top of the rotating shaft 53 can be used as a flexible belt to be connected with the flexible shaft tube 46 through the flexible shaft tube (can be used as a flexible shaft coupler) so as not to affect the axial direction of the rotation of the transmission shaft tube 53, and the rotation can not be affected by the rotation of the transmission shaft tube 46. The rotary shaft tube 53 and the spherical shaft sleeve 52 are connected through the bearing 55, so that the spherical shaft sleeve 52 does not affect the rotation of the rotary shaft tube 53, the material of the hairbrush 54 can be selected according to the hardness of consumable metal, sand is supplied by the sand supplying device through the sand blasting pipe when the hairbrush 54 brushes sand and roughens, sand passes through the sand supplying pipe to reach the channel inside the rotary shaft tube 53, and finally the sand is sprayed out through the sand blasting opening at the bottom of the sand supplying pipe, so that the section bar is impacted to perform the roughing operation. The above-mentioned structure can realize the adjustment of section bar to rotatory central siphon 53 angle through anticollision ring 56 to make brush 54 can vertically act on the section bar surface, carry out the operation of brushing sand gravel and roughening, set up two sets of roughening assemblies, can be when the section bar passes through first roughening assembly, the direction adjustment is the next roughening assembly and carries out the sandblast under the striking in the section bar, the section bar is upset and is transported to the next roughening assembly this moment, the sandblast brush hair subassembly 5 of first roughening assembly can effectively carry out roughening treatment to the section bar, avoid the section bar to carry out the sandblast roughening treatment to it after bumping the direction with rotatory central siphon 53.
The utility model provides an use high-speed railway top apron abnormal shape strengthening rib of integrated extrusion molding technology preparation which characterized in that includes: end reinforcing ribs 6, middle reinforcing ribs 7 and longitudinal beam reinforcing ribs 8; the end reinforcing ribs 6 and the longitudinal beam reinforcing ribs 8 are respectively arranged on two opposite side edges of the top cover plate, and the middle reinforcing rib 7 is arranged between the two longitudinal beam reinforcing ribs 8 and is positioned on the top surface of the top cover plate.
The technical scheme has the working principle and beneficial effects that: the reinforcing ribs produced by the process have stronger hardness and toughness, so that the reinforcing ribs can adapt to the working strength of high-speed rails, wherein the end reinforcing ribs 6 and the longitudinal beam reinforcing ribs 8 can be R-shaped or C-shaped.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. An integral extrusion molding process for a high-speed rail top cover plate reinforcing rib is characterized by comprising the following steps of:
s1: selecting materials and heating;
s2: extruding into a profile by an extrusion device (1);
s3: cooling and quenching;
s4: detecting, sizing and sawing, and carrying out finish machining through roughening equipment (4);
s5: loading in a basket and carrying out aging treatment;
in the step S4 of the process of the present invention,
s401: the cooled section bar is subjected to interrupt operation according to the required length;
s402: checking the size and the surface finish of the steel plate;
s403: after twice straightening treatment, fixed-length sawing is carried out;
s404: the roughening treatment of the whole and sawing ends is carried out by a roughening device (4);
s405: spraying antirust paint on the roughened finished section bar, and sampling and checking the size, the gap, the bending and the twisting of the finished section bar;
the extrusion equipment (1) comprises a plurality of forming curved rollers (2) and stress release rollers (3), wherein the forming curved rollers (2) are in linear arrangement, metal which is preliminarily formed through a die sequentially passes through the forming curved rollers (2) to be subjected to bending treatment and finally reaches the stress release rollers (3), heating equipment is arranged on the forming curved rollers (2) and used for heating the forming curved rollers (2), the stress release rollers (3) are four shaping rollers which are arranged in a cross shape, and heating equipment is also arranged on the shaping rollers and used for heating;
the roughening equipment (4) comprises a box body (41), a conveying device (42), at least two groups of roughening components and a dust collection component (43); the roughening assembly and the dust collection assembly (43) are both arranged in the box body (41), the conveying device (42) penetrates through the box body (41), a plurality of sand blasting brush hair assemblies (5) are arranged on the roughening assembly,
the conveying device (42) is used for conveying the section bar to be roughened, the conveying device (42) is a conveying belt driven by driving rollers, and the section bar passes through gaps between the driving rollers after passing through two adjacent driving rollers in the conveying process of the section bar on the conveying belt, so that the overturning effect is realized;
the roughening assembly is positioned in front of the dust collection assembly (43), and the roughening assembly is used for roughening the profile through the sand blasting bristle assembly (5);
the dust collection assembly (43) is used for absorbing sand and metal slag on the profile;
the roughening assembly comprises a fixing frame (44), a driving motor (45), a plurality of gear shafts (46) and a plurality of sand blasting brush hair assemblies (5), wherein the fixing frame (44) is arranged on the inner wall of the box body (41), the driving motor (45) and the gear shafts (46) are arranged at the top of the fixing frame (44), the bottoms of the gear shafts (46) penetrate through the fixing frame (44) and are connected with the sand blasting brush hair assemblies (5) through flexible couplings, sand blasting pipes are arranged on the sand blasting brush hair assemblies (5), and penetrate through the fixing frame (44) and the box body (41) to be communicated with a sand supplying device;
the sand blasting brush hair subassembly (5) is including fixed pipe (51), spherical axle sleeve (52), rotatory central siphon (53) and brush (54), fixed pipe (51) set up the bottom of mount (44), the outer wall of spherical axle sleeve (52) with the inner wall swing joint of fixed pipe (51), the inner wall of spherical axle sleeve (52) is provided with bearing (55), rotatory central siphon (53) pass through bearing (55) with the inner wall connection of spherical axle sleeve (52), brush (54) set up on the outer wall of rotatory central siphon (53) to be located the bottom of spherical axle sleeve (52), the bottom lateral wall of rotatory central siphon (53) is provided with anticollision ring (56), brush (54) are located the outside of anticollision ring (56), the bottom of rotatory central siphon (53) is provided with the sand blasting mouth, be provided with the passageway in rotatory central siphon (53), the top of rotatory central siphon (53) is passed through flexible coupling with the bottom of gear shaft (46) is connected, the sand blasting mouth passes through the passageway with the pipe intercommunication.
2. The process for integrally extruding a high-speed rail top cover plate reinforcing rib as set forth in claim 1, wherein step S1 comprises:
s101: selecting consumable metals;
s102: sawing;
s103: and heating the consumable metal.
3. The process for integrally extruding a reinforcing rib for a top cover plate of a high-speed railway according to claim 2, wherein in step S101, when consumable metals are selected, component analysis and low-power experiments are required.
4. The integrated extrusion process of the high-speed rail top cover plate reinforcing rib according to claim 2, wherein in the step S101, the consumable metal is an aluminum rod, and in the step S103, the heating temperature of the consumable metal is 470 ℃ -510 ℃.
5. The integrated extrusion molding process of the high-speed rail top cover plate reinforcing ribs according to claim 2 is characterized in that the step S1 is carried out, the die is detected in advance, the die is heated and raised after detection, when the temperature of the die is raised to 420-510 ℃, the step S2 is started, and heated consumable metal passes through extrusion equipment (1) through the die to be extruded into a profile.
6. The integrated extrusion process of high-speed rail roof sheathing reinforcement according to claim 1, wherein in step S3, the extruded high-temperature profile is quenched while air-cooled.
7. The process for integrally extruding a high-speed rail top cover plate reinforcing rib according to claim 1, wherein the aging treatment in step S5: the profile is heated to 195.+ -. 5 ℃ before application and kept for 2 hours, and is treated in ageing according to the hardness of the required profile.
8. A high-speed rail roof deck profile stiffener produced by an integral extrusion process as claimed in any one of claims 1 to 7, comprising: an end reinforcing rib (6), a middle reinforcing rib (7) and a longitudinal beam reinforcing rib (8); the end reinforcing ribs (6) and the longitudinal beam reinforcing ribs (8) are respectively arranged on two opposite side edges of the top cover plate, and the middle reinforcing rib (7) is arranged between the two longitudinal beam reinforcing ribs (8) and is positioned on the top surface of the top cover plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211390726.1A CN115647759B (en) | 2022-11-07 | 2022-11-07 | High-speed rail top cover plate reinforcing rib and integral extrusion molding process thereof |
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| CN202211390726.1A CN115647759B (en) | 2022-11-07 | 2022-11-07 | High-speed rail top cover plate reinforcing rib and integral extrusion molding process thereof |
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| CN115647759B true CN115647759B (en) | 2023-10-31 |
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| CN115647759A (en) | 2023-01-31 |
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