CN113799819A - Aluminum honeycomb panel for high-speed rail PC source and installation method - Google Patents
Aluminum honeycomb panel for high-speed rail PC source and installation method Download PDFInfo
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- CN113799819A CN113799819A CN202111072697.XA CN202111072697A CN113799819A CN 113799819 A CN113799819 A CN 113799819A CN 202111072697 A CN202111072697 A CN 202111072697A CN 113799819 A CN113799819 A CN 113799819A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/08—Sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/18—Internal lining, e.g. insulating
- B61D17/185—Internal lining, e.g. insulating for sound insulating
Abstract
The invention relates to the field of honeycomb plates, in particular to an aluminum honeycomb plate for a high-speed rail PC source, which comprises a wall body, wherein side frames are respectively installed at the top and the bottom of the outer wall of one side of the wall body through bolts, center frames which are distributed equidistantly are installed between the two side frames through bolts, honeycomb plate bodies are respectively clamped between the two adjacent center frames and between the center frames and the side frames, each honeycomb plate body comprises a shell, a first honeycomb frame is clamped inside the shell, a partition plate is bonded on the outer wall of one side, far away from the shell, of the first honeycomb frame, a second honeycomb frame is bonded on the outer wall of one side, far away from the first honeycomb frame, of the partition plate, and sound blocking plate holes are welded on the outer wall of one side, far away from the partition plate, of the second honeycomb frame. The invention has the advantages that the noise can be continuously refracted in the first honeycomb frame and the second honeycomb frame, the energy of the noise is converted into mechanical energy and finally converted into internal energy, and the noise is absorbed instead of being refracted in the carriage, so that the noise in the carriage environment can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of honeycomb plates, in particular to an aluminum honeycomb plate for a high-speed rail PC source and an installation method.
Background
The honeycomb plate is a plate made of two thin panels firmly adhered to two sides of a layer of thick honeycomb core material, and is also called a honeycomb sandwich structure. The honeycomb panel also refers to a panel in which a large number of cutoff waveguides are welded together to form a cutoff waveguide array, thereby forming a large opening area and preventing electromagnetic wave leakage.
Chinese patent No. CN113073772A provides a suspended structure of aluminum honeycomb panel, this suspended structure of aluminum honeycomb panel is used for connecting the aluminum honeycomb panel and hangs in the furred ceiling space, the mounting groove has been seted up to the aluminum honeycomb panel tip, the suspended structure of aluminum honeycomb panel includes: the connecting piece is provided with a card inserting gap and a mounting frame inserted into the mounting groove; and the hanging part is provided with an insertion plate inserted into the card insertion gap, so that the insertion plate is inserted into the card insertion gap, and the aluminum honeycomb panel installed on the connecting piece is hung in a ceiling space. The installing frame is inserted into the installing groove to enable the end part of the aluminum honeycomb panel to be firm in structure, and meanwhile, the connecting piece is further provided with a buckle structure or a clamping groove structure, so that the two connecting pieces can be effectively and tidily spliced together, and the splicing gap is kept consistent.
The space inside the carriage on the high-speed rail is small, and more passengers exist, so that the environment inside the carriage is noisy, and the noise is amplified by refracting the sound inside the carriage by the wall inside the carriage, so that the rest of the passengers inside the carriage is seriously influenced; more passengers on the high-speed rail can cause the cellular board to be easily damaged, and the existing mounting structure is inconvenient to detach a certain cellular board for replacement, so that the maintenance is troublesome.
Disclosure of Invention
The invention aims to provide an aluminum honeycomb panel for a high-speed rail PC source and an installation method thereof, and aims to solve the problems that the space inside a carriage on a high-speed rail is small, more people exist, the environment inside the carriage is noisy, sound is refracted inside the carriage by the wall inside the carriage, noise is amplified, and rest of passengers inside the carriage is seriously influenced.
The technical scheme of the invention is as follows: an aluminum honeycomb panel for a high-speed rail PC source comprises a wall body, wherein side frames are respectively installed at the top and the bottom of the outer wall of one side of the wall body through bolts, center frames which are distributed equidistantly are installed between the two side frames through bolts, honeycomb panel bodies are respectively connected between every two adjacent center frames and between the center frames and the side frames in a clamping mode, each honeycomb panel body comprises a shell, a first honeycomb frame is connected to the inner portion of the shell in a clamping mode, partition plates are bonded to the outer wall, away from the shell, of one side of each first honeycomb frame, a second honeycomb frame is bonded to the outer wall, away from the first honeycomb frame, of one side of each partition plate, sound blocking plates are welded to the outer wall, away from the partition plates, honeycomb holes which are distributed equidistantly are formed in the two outer walls of the first honeycomb frame and the second honeycomb frame, first sound absorbing holes which are distributed equidistantly are formed in the outer wall of one side of the shell, and the outer wall of one side of the partition board is provided with second sound absorbing holes distributed at equal intervals, the first sound absorbing holes and the second sound absorbing holes are in one-to-one correspondence with the honeycomb holes, and the outer wall of one side of the shell is bonded with a decorative surface layer.
Furthermore, first folding sound holes distributed equidistantly are formed in the outer wall of one side of the first honeycomb frame and the inner wall of one side of the first honeycomb frame, and second folding sound holes distributed equidistantly are formed in the outer wall of one side of the second honeycomb frame and the inner wall of one side of the second honeycomb frame.
Furthermore, the outer wall of one side of the wall body is provided with positioning grooves which are distributed equidistantly, and the side frames and the center frame are both arranged in the positioning grooves through bolts.
Furthermore, the clamping strips are integrally formed on the outer wall of one side of the side frame and the outer wall of one side of the center frame, and the fixing blocks are integrally formed on the outer walls of the two sides of the clamping strips.
Further, all open on the top outer wall of honeycomb panel body and on the bottom outer wall has the draw-in groove, and open on the bottom inner wall of draw-in groove and be the equidistance and distribute have the fixed slot, the joint of card strip is in the inside of draw-in groove, the fixed block joint is in the inside of fixed slot.
Further, all install first magnetic stripe through the screw on the top outer wall of honeycomb panel body and on the bottom outer wall, and two adjacent first magnetic stripes actuation each other.
Further, all install the second magnetic stripe through the screw on the both sides outer wall of honeycomb panel body, and two adjacent second magnetic stripes actuation each other.
Furthermore, the buffering layer is bonded on the outer wall of one side, far away from the second honeycomb frame, of the sound-resisting plate, and the buffering layer is located between the sound-resisting plate and the wall body.
A method for installing an aluminum honeycomb panel for a high-speed rail PC source comprises the following steps:
s1: line snapping: firstly, an installer pops up horizontal lines and vertical lines on a wall body to be installed on a high-speed rail, wherein the distance between the horizontal lines = the length of the honeycomb plate body +/-1 mm, and the distance between the vertical lines = the width of the honeycomb plate body +/-0.5 mm, so that the installation positions, straightness and fixing points of the side frames and the center frame can be conveniently controlled during installation;
s2: installing a side frame and a center frame: firstly, according to the width of a side frame, an installer opens two positioning grooves at the horizontal line position close to the top and the horizontal line position close to the bottom of the outer wall of the side surface of a wall body, so that the width of the two positioning grooves = the width of the side frame +/-0.5 mm, then according to the width of a center frame, opens a plurality of positioning grooves at the horizontal line position between the two opened positioning grooves, so that the width of the positioning grooves of the plurality of positioning grooves = the width of the center frame +/-0.5 mm, then the operator respectively installs the side frame and the center frame inside the corresponding positioning grooves, drills holes on the wall body according to fixing holes on the side frame and the center frame, then puts expansion bolts into the holes, and finally fixes the side frame and the center frame inside the positioning grooves through the expansion bolts;
s3: installing a honeycomb plate body: the installer firstly installs the honeycomb panel body joint between two adjacent card strips according to the most left vertical line for the fixed block joint makes it the standard plate in the inside of fixed slot, then hugs closely the standard plate and finishes remaining honeycomb panel body joint one by one, makes mutual actuation between the adjacent first magnetic stripe, mutual actuation between the adjacent second magnetic stripe, treat that the whole wall body installation finishes can.
Further, in S3, before the honeycomb panel body is clamped on the clamping strip, the installer should first apply the adhesive uniformly at the center of each mesh of the grid composed of the horizontal lines and the vertical lines, and the area of the adhesive applied should be 5% -10% of the area of each mesh.
The invention provides an aluminum honeycomb panel for a high-speed rail PC source and an installation method thereof through improvement, compared with the prior art, the aluminum honeycomb panel has the following improvement and advantages:
(1) through the first honeycomb frame and the second honeycomb frame that set up, noise in the environment passes through the inside of first sound absorbing hole entering honeycomb panel body, then just can be in the inside of first honeycomb frame and second honeycomb frame and constantly refract for the energy of noise becomes mechanical energy and becomes internal energy at last, thereby makes the noise absorbed, and not at the inside refraction in carriage, can reduce the noise in the carriage environment effectively.
(2) Through the buffer layer that sets up, the buffer layer is flexible structure, can reduce the vibration that the high-speed railway wall body conducts to the honeycomb panel body to prevent that the honeycomb panel body from droing because of being located under the state of vibration for a long time, and adsorb each other between first magnetic stripe and the second magnetic stripe, can make the structure more stable, and with the gap seal between the adjacent honeycomb panel body, prevent that the foreign matter from getting into.
(3) Through fixed block, fixed slot, first magnetic stripe and the second magnetic stripe that sets up, through the joint with this individual joint of honeycomb panel between the card strip, then through first magnetic stripe and second magnetic stripe with this relatively fixed of two adjacent honeycomb panels to make certain honeycomb panel body can be pulled down alone under the condition that does not influence other honeycomb panel bodies, thereby the convenience is carried out the replacement alone to the honeycomb panel body, makes to maintain comparatively simple.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the side frame and center frame construction of the present invention;
FIG. 3 is a schematic view of the honeycomb panel body structure of the present invention;
fig. 4 is an exploded view of the honeycomb panel body structure of the present invention.
Description of reference numerals:
1 wall body, 2 constant head tanks, 3 limit framves, 4 centre framves, 5 honeycomb panel bodies, 6 card strips, 7 fixed blocks, 8 draw-in grooves, 9 fixed slots, 10 first magnetic stripe, 11 second magnetic stripe, 12 casings, 13 first sound absorption holes, 14 finish coat, 15 first honeycomb frame, 16 baffles, 17 second sound absorption holes, 18 second honeycomb frame, 19 first sound folding holes, 20 second sound folding holes, 21 acoustical resistance boards, 22 buffer layers, 23 honeycomb holes.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
An aluminum honeycomb panel for a high-speed rail PC source comprises a wall body 1, wherein side frames 3 are respectively installed at the top and the bottom of the outer wall of one side of the wall body 1 through bolts, center frames 4 which are distributed equidistantly are installed between the two side frames 3 through bolts, honeycomb panel bodies 5 are respectively connected between two adjacent center frames 4 and between the center frames 4 and the side frames 4 in a clamping manner, each honeycomb panel body 5 comprises a shell 12, a first honeycomb frame 15 is connected in the shell 12 in a clamping manner, partition plates 16 are bonded on the outer wall of one side, far away from the shell 12, of the first honeycomb frame 15, a second honeycomb frame 18 is bonded on the outer wall of one side, far away from the first honeycomb frame 15, of each partition plate 16, sound blocking plates 21 are welded on the outer wall of one side, far away from the partition plates 16, honeycomb holes 23 which are distributed equidistantly are formed in the two outer walls of the first honeycomb frame 15 and the second honeycomb frame 18, first sound absorbing holes 13 which are distributed equidistantly are formed in the outer wall of one side of the shell 12, and the outer wall of one side of the partition plate 16 is provided with second sound absorbing holes 17 distributed at equal intervals, the first sound absorbing holes 13 and the second sound absorbing holes 17 are in one-to-one correspondence with the honeycomb holes 23, and the outer wall of one side of the shell 12 is bonded with a decorative surface layer 14.
Further, the first tuning holes 19 are formed on the outer wall of one side and the inner wall of one side of the first honeycomb frame 15, and the second tuning holes 20 are formed on the outer wall of one side and the inner wall of one side of the second honeycomb frame 18.
Furthermore, the outer wall of one side of the wall body 1 is provided with positioning grooves 2 which are distributed equidistantly, and the side frames 3 and the center frame 4 are both arranged in the positioning grooves 2 through bolts.
Further, the clamping strips 6 are integrally formed on the outer walls of one side of the side frame 3 and the central frame 4, and the fixing blocks 7 are integrally formed on the outer walls of two sides of the clamping strips 6.
Further, all open on the top outer wall of honeycomb panel body 5 and the bottom outer wall has draw-in groove 8, and open on the bottom inner wall of draw-in groove 8 and be equidistance distribution have fixed slot 9, and 6 joints of card strip are in the inside of draw-in groove 8, and 7 joints of fixed block are in the inside of fixed slot 9.
Further, all install first magnetic stripe 10 through the screw on the top outer wall of honeycomb panel body 5 and the bottom outer wall, and two adjacent first magnetic stripes 10 actuation each other.
Further, all install second magnetic stripe 11 through the screw on the both sides outer wall of honeycomb panel body 5, and two adjacent second magnetic stripes 11 mutual actuation.
Further, a buffer layer 22 is adhered to the outer wall of the sound-resisting plate 21 on the side far away from the second honeycomb frame 18, and the buffer layer 22 is located between the sound-resisting plate 21 and the wall body 1.
A method for installing an aluminum honeycomb panel for a high-speed rail PC source comprises the following steps:
s1: line snapping: firstly, an installer pops up horizontal lines and vertical lines on a wall body 1 to be installed on a high-speed rail, wherein the distance between the horizontal lines = the length of the honeycomb panel body 5 +/-1 mm, and the distance between the vertical lines = the width of the honeycomb panel body 5 +/-0.5 mm, so that the installation positions, straightness and fixing points of the side frames 3 and the center frame 4 can be conveniently controlled during installation;
s2: installing the side frame 3 and the center frame 4: firstly, an installer opens two positioning grooves 2 at the horizontal line position close to the top and the horizontal line position close to the bottom of the outer wall of the side surface of the wall body 1 according to the width of the side frame 3, so that the width of the two positioning grooves 2 is = the width of the side frame 3 +/-0.5 mm, then opens a plurality of positioning grooves 2 at the horizontal line position between the two opened positioning grooves 2 according to the width of the center frame 4, so that the width of the positioning grooves 2 of the plurality of positioning grooves is = the width of the center frame 4 +/-0.5 mm, then the operator installs the side frame 3 and the center frame 4 inside the corresponding positioning grooves 2 respectively, drills holes on the wall body 1 according to the fixing holes on the side frame 3 and the center frame 4, then puts expansion bolts into the holes, and finally fixes the side frame 3 and the center frame 4 inside the positioning grooves 2 through the expansion bolts;
s3: mounting the honeycomb plate body 5: the installer firstly installs 5 joints of honeycomb panel body between two adjacent card strips 6 according to the most left vertical line for 7 joints of fixed block make it the standard plate in the inside of fixed slot 9, then hug closely the standard plate and finish 5 joints of remaining honeycomb panel body one by one, make mutual actuation between the adjacent first magnetic stripe 10, mutual actuation between the adjacent second magnetic stripe 11, treat that whole face wall body 1 finishes installing can.
Further, before the honeycomb panel body 5 is clamped on the clamping strip 6 in S3, the installer should first uniformly apply the adhesive at the center of each mesh of the grid composed of the horizontal lines and the vertical lines, and the area of the adhesive applied should be 5% -10% of the area of each mesh.
The working principle is as follows: firstly, an installer pops up horizontal lines and vertical lines on a wall body to be installed on a high-speed rail, wherein the distance between the horizontal lines = the length of the honeycomb plate body +/-1 mm, and the distance between the vertical lines = the width of the honeycomb plate body +/-0.5 mm, so that the installation positions, straightness and fixing points of the side frames and the center frame can be conveniently controlled during installation; then installing a side frame and a center frame: firstly, according to the width of a side frame, an installer opens two positioning grooves at the horizontal line position close to the top and the horizontal line position close to the bottom of the outer wall of the side surface of a wall body, so that the width of the two positioning grooves = the width of the side frame +/-0.5 mm, then according to the width of a center frame, opens a plurality of positioning grooves at the horizontal line position between the two opened positioning grooves, so that the width of the positioning grooves of the plurality of positioning grooves = the width of the center frame +/-0.5 mm, then the operator respectively installs the side frame and the center frame inside the corresponding positioning grooves, drills holes on the wall body according to fixing holes on the side frame and the center frame, then puts expansion bolts into the holes, and finally fixes the side frame and the center frame inside the positioning grooves through the expansion bolts; and finally, mounting a honeycomb plate body: the installer should paint the adhesive at every mesh center department of the net that water flat line and vertical line are constituteed at first before on the card strip with honeycomb panel body joint, and the area of painting of adhesive should be 5% -10% of every mesh area, then will install honeycomb panel body joint between two adjacent card strips according to leftmost vertical line, make the fixed block joint in the inside of fixed slot, make it to become the standard plate, then hug closely the standard plate and finish remaining honeycomb panel body joint one by one, make mutual actuation between the adjacent first magnetic stripe, mutual actuation between the adjacent second magnetic stripe, treat that the whole wall body installation finishes can.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a high-speed railway PC is aluminium honeycomb panel for source which characterized in that: including wall body (1), limit frame (3) are all installed through the bolt to the top and the bottom of one side outer wall of wall body (1), and install through the bolt between two limit frames (3) and be centre frame (4) that the equidistance distributes, adjacent two equal joint has honeycomb panel body (5) between centre frame (4) and limit frame (4), honeycomb panel body (5) are including casing (12), the inside joint of casing (12) has first honeycomb frame (15), and bonds on one side outer wall of casing (12) is kept away from in first honeycomb frame (15) and have baffle (16), it has second honeycomb frame (18) to bond on one side outer wall of first honeycomb frame (15) is kept away from in baffle (16), and the welding has and hinders soundboard (21), all open on two outer walls of first honeycomb frame (15) and second honeycomb frame (18) and be the honeycomb that the equidistance distributes The honeycomb-shaped sound absorbing structure comprises holes (23), wherein first sound absorbing holes (13) distributed equidistantly are formed in the outer wall of one side of the shell (12), second sound absorbing holes (17) distributed equidistantly are formed in the outer wall of one side of the partition plate (16), the first sound absorbing holes (13) and the second sound absorbing holes (17) are in one-to-one correspondence with the honeycomb holes (23), and a decorative surface layer (14) is bonded on the outer wall of one side of the shell (12).
2. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: first folding sound holes (19) distributed equidistantly are formed in the outer wall of one side of the first honeycomb frame (15) and the inner wall of one side of the first honeycomb frame, and second folding sound holes (20) distributed equidistantly are formed in the outer wall of one side of the second honeycomb frame (18) and the inner wall of one side of the second honeycomb frame.
3. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: the wall body (1) is provided with positioning grooves (2) distributed at equal intervals on the outer wall of one side, and the side frames (3) and the center frame (4) are both installed in the positioning grooves (2) through bolts.
4. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: the side frame (3) and the outer wall of one side of the center frame (4) are integrally formed with clamping strips (6), and the outer walls of the two sides of the clamping strips (6) are integrally formed with fixing blocks (7).
5. The aluminum honeycomb panel for a high-speed railway PC source of claim 4, wherein: all open draw-in groove (8) on the top outer wall of honeycomb panel body (5) and on the bottom outer wall, and open on the bottom inner wall of draw-in groove (8) and be equidistant distribution have fixed slot (9), card strip (6) joint is in the inside of draw-in groove (8), fixed block (7) joint is in the inside of fixed slot (9).
6. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: all install first magnetic stripe (10) through the screw on the top outer wall of honeycomb panel body (5) and on the bottom outer wall, and two adjacent first magnetic stripes (10) actuation each other.
7. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: and the outer walls of the two sides of the cellular board body (5) are respectively provided with a second magnetic strip (11) through screws, and the two adjacent second magnetic strips (11) are mutually attracted.
8. The aluminum honeycomb panel for a high-speed railway PC source as claimed in claim 1, wherein: a buffer layer (22) is bonded on the outer wall of one side, far away from the second honeycomb frame (18), of the sound-resisting plate (21), and the buffer layer (22) is located between the sound-resisting plate (21) and the wall body (1).
9. A method for installing an aluminum honeycomb panel for a high-speed rail PC source is characterized by comprising the following steps:
s1: line snapping: firstly, an installer pops up horizontal lines and vertical lines on a wall body (1) to be installed on a high-speed rail, wherein the distance between the horizontal lines = the length of the honeycomb plate body (5) ± 1mm, and the distance between the vertical lines = the width of the honeycomb plate body (5) ± 0.5mm, so that the installation position, straightness and fixing point of the side frame (3) and the center frame (4) can be conveniently controlled during installation;
s2: installing the side frame (3) and the center frame (4): firstly, an installer opens two positioning grooves (2) at the horizontal line of the outer wall of the side surface of the wall body (1) near the top and the horizontal line near the bottom according to the width of the side frame (3), so that the width of the two positioning slots (2) = 0.5mm from the width of the side frame (3), then depending on the width of the centre frame (4), a plurality of positioning grooves (2) are arranged at the horizontal line position between two already-opened positioning grooves (2), so that the width of the positioning grooves (2) of the plurality of positioning grooves = the width of the center frame (4) ± 0.5mm, then the side frame (3) and the central frame (4) are respectively arranged in the corresponding positioning grooves (2) by an operator, holes are drilled on the wall body (1) according to the fixing holes on the side frames (3) and the center frame (4), then, an expansion bolt is placed in the hole, and finally the side frame (3) and the center frame (4) are fixed inside the positioning groove (2) through the expansion bolt;
s3: mounting a honeycomb plate body (5): installer will install honeycomb panel body (5) joint between two adjacent card strips (6) according to the vertical line on leftmost at first for fixed block (7) joint is in the inside of fixed slot (9), makes it to become the standard plate, then hugs closely the standard plate and finishes remaining honeycomb panel body (5) joint one by one, makes mutual actuation between adjacent first magnetic stripe (10), mutual actuation between adjacent second magnetic stripe (11), treat that whole face wall body (1) installation finishes can.
10. The method of claim 9, wherein the method comprises the steps of: in S3, before the honeycomb panel body (5) is clamped on the clamping strip (6), the installer should first uniformly apply the adhesive at the center of each mesh of the grid composed of the horizontal lines and the vertical lines, and the area of the adhesive applied should be 5% -10% of the area of each mesh.
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| CN202111072697.XA CN113799819A (en) | 2021-09-14 | 2021-09-14 | Aluminum honeycomb panel for high-speed rail PC source and installation method |
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| CN202111072697.XA CN113799819A (en) | 2021-09-14 | 2021-09-14 | Aluminum honeycomb panel for high-speed rail PC source and installation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117183487A (en) * | 2023-09-14 | 2023-12-08 | 广东华途仕建材实业有限公司 | Detachable combined aluminum alloy honeycomb plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117183487A (en) * | 2023-09-14 | 2023-12-08 | 广东华途仕建材实业有限公司 | Detachable combined aluminum alloy honeycomb plate |
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