CN115075495A - Flame-retardant and heat-insulating aluminum gusset plate and preparation method thereof - Google Patents
Flame-retardant and heat-insulating aluminum gusset plate and preparation method thereof Download PDFInfo
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- CN115075495A CN115075495A CN202210803337.0A CN202210803337A CN115075495A CN 115075495 A CN115075495 A CN 115075495A CN 202210803337 A CN202210803337 A CN 202210803337A CN 115075495 A CN115075495 A CN 115075495A
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- retardant
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- insulating
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000003063 flame retardant Substances 0.000 title claims abstract description 50
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 239000004964 aerogel Substances 0.000 claims abstract description 8
- 239000010425 asbestos Substances 0.000 claims abstract description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011810 insulating material Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/045—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire
- E04F2290/047—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire with a bottom layer for fire insulation
Abstract
The invention relates to the field of aluminum pinch plates, in particular to a flame-retardant heat-insulating aluminum pinch plate which comprises a substrate, wherein clamping edges are arranged on the periphery of the substrate, a groove is formed in the middle of the end surface of the inner side of the substrate, a water inlet channel is formed in the middle of the groove and is communicated with a cavity in the substrate, water is filled in the cavity, a sealing cover is arranged on the water inlet channel in a sealing mode, and a heat-insulating pad is paved and arranged on the end surface of the inner side of the substrate. According to the invention, the fire-retardant and heat-insulating aluminum gusset plate has the advantages that the fire-retardant performance of the aluminum gusset plate is improved through the fire-retardant coating on the outer side of the substrate, the substrate with the cavity is filled with water, the water can be used as a better heat-insulating material and has a certain fire-retardant performance, the heat-insulating pad on the inner side of the aluminum gusset plate is an asbestos pad, an aluminum silicate felt pad or an aerogel felt pad, the heat-insulating function is realized, the fire-retardant performance can be realized, and the fire-retardant and heat-insulating performance of the aluminum gusset plate can be improved.
Description
Technical Field
The invention relates to the technical field of aluminous gusset plates, in particular to a flame-retardant and heat-insulating aluminous gusset plate and a preparation method thereof.
Background
The aluminum gusset plate is manufactured by taking an aluminum alloy plate as a substrate through cutting, corner shearing and die pressing, various aluminum gusset plate products are obtained by processing different coatings on the surface of the aluminum gusset plate, the aluminum gusset plate is mainly divided into two types, one type is a home decoration integrated aluminum gusset plate, the other type is an engineering aluminum gusset plate, and the home decoration aluminum gusset plate is mainly roll-coated and frosted at first.
The existing aluminum gusset plate is formed by a single-layer aluminum plate, has poor flame retardant effect and poor heat insulation performance, and is difficult to adapt to different installation environments.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a flame-retardant heat-insulating aluminum gusset plate and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fire-retardant heat retaining aluminous gusset plate, includes the base plate, be provided with the buckle limit around the base plate, the middle part of base plate medial surface is seted up flutedly, and the middle part of recess is provided with inhalant canal, and inhalant canal and the inside cavity intercommunication of base plate are filled with water in the cavity, and the last seal installation of inhalant canal has sealed lid, and lays on the medial surface of base plate and install the heat preservation and fill up.
Preferably, the base plate is formed by splicing double-layer aluminum plates and peripheral frames in a sealing mode, and a cavity is reserved between the base plates.
Preferably, the groove on the end face of the inner side of the base plate is covered with an installation cover plate through a screw, and the thickness of the cover plate is 1 mm.
Preferably, a flame retardant coating is provided on an outer end surface of the substrate.
Preferably, the heat preservation pad is one of an asbestos pad, an aluminum silicate felt pad or an aerogel felt pad.
Fire-retardant heat retaining aluminous gusset plate promotes aluminous gusset plate's fire behavior through the fire-retardant coating in the base plate outside, and has the full water of base plate intussuseption of cavity, and better insulation material can be regarded as to water, has certain fire behaviour simultaneously, and the inboard heat preservation of aluminous gusset plate fills up and adopts asbestos pad, aluminium silicate felt pad or aerogel felt pad, not only has the heat preservation function and still can fire-retardantly.
Simultaneously, the inhalant canal accessible sealed lid in the recess is opened, and water in the aluminous gusset plate can add when the construction, and water is sealed through sealed lid after filling the cavity in the aluminous gusset plate, can be convenient to pour into water or pour water in the aluminous gusset plate.
The cover plate covers the groove, the strength of the groove can be enhanced by the cover plate, and the cover plate is more attractive after being sealed; through set up the heat preservation pad in the aluminous gusset inboard, cover the apron, also make the whole outward appearance of aluminous gusset comparatively pleasing to the eye.
A preparation method of a flame-retardant and heat-insulating aluminum gusset plate comprises the following steps:
s1, cutting two aluminum plates with proper sizes, turning the periphery of the upper aluminum plate upwards, cutting the upper aluminum plate into peripheral buckling edges, turning the periphery of the lower aluminum plate to form a frame body, welding the frame body with the upper aluminum plate in a sealing manner, forming a base plate with the buckling edges, and forming a closed cavity on the inner side of the base plate;
s2, a water inlet channel communicated with a cavity in the middle of the base plate is arranged on the inner side surface of the base plate, namely the middle of the upper aluminum plate, a groove is milled on the base plate around the water inlet channel, the groove is not communicated with the cavity, the cavity is filled with water through the water inlet channel, and a sealing cover is covered on the outer side of the water inlet channel;
and S3, adhering a heat-insulating pad on the end face of the inner side of the substrate, and spraying a flame-retardant coating on the end face of the outer side of the substrate.
Preferably, inhalant canal's the groove depth that highly is less than the recess, and inhalant canal's the outside is provided with the screw thread, and inhalant canal connects sealedly with sealed lid soon.
Preferably, the groove is provided with a cover plate through a screw, the cover plate is sealed on the groove, and the cover plate is positioned below the heat-insulating pad.
The invention has the beneficial effects that:
according to the invention, the fire-retardant and heat-insulating aluminum gusset plate has the advantages that the fire-retardant performance of the aluminum gusset plate is improved through the fire-retardant coating on the outer side of the substrate, the substrate with the cavity is filled with water, the water can be used as a better heat-insulating material and has a certain fire-retardant performance, the heat-insulating pad on the inner side of the aluminum gusset plate is an asbestos pad, an aluminum silicate felt pad or an aerogel felt pad, the heat-insulating function is realized, the fire-retardant performance can be realized, and the fire-retardant and heat-insulating performance of the aluminum gusset plate can be improved.
Drawings
FIG. 1 is a schematic structural view of a flame-retardant and heat-insulating aluminous gusset plate provided by the invention;
FIG. 2 is a schematic structural view of the cover plate of the flame-retardant and heat-insulating aluminum gusset plate provided by the invention during installation;
FIG. 3 is a schematic structural view of the sealing cover of the flame-retardant and heat-insulating aluminous gusset plate provided by the invention when being installed;
fig. 4 is a schematic view of the internal structure of the substrate of the flame-retardant and heat-insulating aluminous gusset plate provided by the invention.
In the figure: 1 base plate, 101 grooves, 102 sealing covers, 2 buckling edges, 3 cover plates, 4 heat preservation pads, 5 water and 6 flame-retardant coatings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-4, the flame-retardant and heat-insulating aluminous gusset plate comprises a base plate 1, wherein a buckling edge 2 is arranged on the periphery of the base plate 1, a groove 101 is formed in the middle of the end face of the inner side of the base plate 1, a water inlet channel is formed in the middle of the groove 101 and is communicated with a cavity inside the base plate 1, water 5 is filled in the cavity, a sealing cover 102 is hermetically mounted on the water inlet channel, a heat-insulating pad 4 is paved and mounted on the end face of the inner side of the base plate 1, and the heat-insulating pad 4 is one of an asbestos pad, an aluminum silicate felt pad or an aerogel felt pad.
Wherein, base plate 1 is formed by double-deck aluminum plate and the sealed concatenation of frame all around, and leaves the cavity between the base plate 1.
Moreover, the groove 101 on the end surface of the inner side of the substrate 1 is covered with an installation cover plate 3 through screws, and the thickness of the cover plate 3 is 1 mm; the flame retardant coating 6 is provided on the outer end surface of the substrate 1.
A preparation method of a flame-retardant and heat-insulating aluminum gusset plate comprises the following steps:
s1, cutting two aluminum plates with proper sizes, turning the periphery of the upper aluminum plate upwards, cutting the upper aluminum plate into peripheral buckling edges, turning the periphery of the lower aluminum plate to form a frame body, welding the frame body with the upper aluminum plate in a sealing manner, forming a base plate with the buckling edges, and forming a closed cavity on the inner side of the base plate;
s2, a water inlet channel communicated with a cavity in the middle of the base plate is arranged on the inner side surface of the base plate, namely the middle of the upper aluminum plate, a groove is milled on the base plate around the water inlet channel, the groove is not communicated with the cavity, the cavity is filled with water through the water inlet channel, and a sealing cover is covered on the outer side of the water inlet channel;
and S3, adhering a heat-insulating pad on the end face of the inner side of the substrate, and spraying a flame-retardant coating on the end face of the outer side of the substrate.
Furthermore, the height of the water inlet channel is smaller than the groove depth of the groove, threads are arranged on the outer side of the water inlet channel, and the water inlet channel is connected with the sealing cover in a screwing mode for sealing.
Furthermore, a cover plate is installed on the groove through a screw, the cover plate is sealed on the groove, and the cover plate is located below the heat preservation pad.
In this embodiment, fire-retardant heat retaining aluminous gusset plate promotes aluminous gusset plate's fire behavior through the fire-retardant coating in the 1 outside of base plate, and has the full water of 1 intussuseption of base plate in the cavity, and better insulation material can be regarded as to water, has certain fire behaviour simultaneously, and the inboard heat preservation of aluminous gusset plate fills up and adopts asbestos pad, aluminium silicate felt pad or aerogel felt pad, not only has the heat preservation function and still can carry on fire-retardantly.
Meanwhile, a water inlet channel in the groove 101 can be opened through the sealing cover 102, water in the aluminum pinch plate can be added during construction, the cavity in the aluminum pinch plate is filled with the water and then sealed through the sealing cover 102, and the water can be conveniently injected into the aluminum pinch plate or poured out of the aluminum pinch plate.
The cover plate 3 covers the groove 101, the strength of the groove 101 can be enhanced by the cover plate 3, and the cover plate is more attractive after being covered; through set up the heat preservation pad in the aluminous gusset inboard, cover apron 3, also make the whole outward appearance of aluminous gusset comparatively pleasing to the eye.
When the aluminum gusset plate is prepared, two aluminum plates with proper sizes are cut, the periphery of the upper aluminum plate is turned upwards and cut into peripheral buckling edges, the periphery of the lower aluminum plate is turned over to form a frame body to be welded with the upper aluminum plate in a sealing manner, a base plate with the buckling edges is formed, and a closed cavity is formed on the inner side of the base plate; a water inlet channel communicated with a cavity in the middle of the base plate is formed in the inner side surface of the base plate, namely the middle of the upper aluminum plate, a groove is milled in the base plate around the water inlet channel, the groove is not communicated with the cavity, the cavity is filled with water through the water inlet channel, and a sealing cover is covered on the outer side of the water inlet channel; and adhering a heat-insulating pad on the end surface of the inner side of the substrate, and spraying a flame-retardant coating on the end surface of the outer side of the substrate.
Wherein, the height of the water inlet channel is less than the depth of the groove, the outer side of the water inlet channel is provided with threads, and the water inlet channel is screwed and sealed with the sealing cover; and a cover plate is arranged on the groove through a screw, the cover plate is sealed on the groove, and the cover plate is positioned below the heat-insulating pad.
According to the invention, the fire-retardant and heat-insulating aluminum gusset plate has the advantages that the fire-retardant performance of the aluminum gusset plate is improved through the fire-retardant coating on the outer side of the base plate 1, the base plate 1 with the cavity is filled with water, the water can be used as a better heat-insulating material and has a certain fire-retardant performance, the heat-insulating pad on the inner side of the aluminum gusset plate is an asbestos pad, an aluminum silicate felt pad or an aerogel felt pad, the heat-insulating function is realized, the fire-retardant and heat-insulating performance can be improved, and the fire-retardant and heat-insulating performance of the aluminum gusset plate can be improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. The utility model provides a fire-retardant heat retaining aluminous gusset plate, includes base plate (1), its characterized in that, be provided with buckle limit (2) around base plate (1), the middle part of base plate (1) medial surface is seted up flutedly (101), the middle part of recess (101) is provided with inhalant canal, inhalant canal and the inside cavity intercommunication of base plate (1), it has water (5) to fill in the cavity, and sealed lid (102) of installing on the inhalant canal seal, and lay on the medial surface of base plate (1) and install heat preservation pad (4).
2. The flame-retardant and heat-insulating aluminous gusset plate according to claim 1, wherein the base plate (1) is formed by hermetically splicing a double-layer aluminum plate and peripheral frames, and a cavity is reserved between the base plates (1).
3. The aluminous gusset plate for flame retardance and heat preservation according to claim 1, wherein a mounting cover plate (3) is covered on a groove (101) on the end face of the inner side of the base plate (1) through screws, and the thickness of the cover plate (3) is 1 mm.
4. The aluminous gusset plate for flame retardance and thermal insulation according to claim 1, wherein a flame retardant coating (6) is provided on an outer end face of said base plate (1).
5. The aluminous gusset plate for flame-retardant and thermal insulation according to claim 1, wherein the thermal insulation pad (4) is one of an asbestos pad, an alumina silicate felt pad or an aerogel felt pad.
6. The preparation method of the flame-retardant and heat-insulating aluminous gusset plate according to any one of claims 1 to 5, which is characterized by comprising the following steps of:
s1, cutting two aluminum plates with proper sizes, turning the periphery of the upper aluminum plate upwards, cutting the upper aluminum plate into peripheral buckling edges, turning the periphery of the lower aluminum plate to form a frame body, welding the frame body with the upper aluminum plate in a sealing manner, forming a base plate with the buckling edges, and forming a closed cavity on the inner side of the base plate;
s2, a water inlet channel communicated with a cavity in the middle of the base plate is arranged on the inner side surface of the base plate, namely the middle of the upper aluminum plate, a groove is milled on the base plate around the water inlet channel, the groove is not communicated with the cavity, the cavity is filled with water through the water inlet channel, and a sealing cover is covered on the outer side of the water inlet channel;
and S3, adhering a heat-insulating pad on the end face of the inner side of the substrate, and spraying a flame-retardant coating on the end face of the outer side of the substrate.
7. The method for preparing the flame-retardant and heat-insulating aluminous gusset plate according to any one of claim 6, wherein the height of the water inlet channel is smaller than the depth of the groove, the outer side of the water inlet channel is provided with threads, and the water inlet channel is screwed and sealed with the sealing cover.
8. The method for preparing the flame-retardant and heat-insulating aluminous gusset plate according to any one of claim 7, wherein a cover plate is installed on the groove through screws, the cover plate is sealed on the groove, and the cover plate is positioned below the heat-insulating pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803337.0A CN115075495B (en) | 2022-07-07 | Flame-retardant heat-preservation aluminous gusset plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803337.0A CN115075495B (en) | 2022-07-07 | Flame-retardant heat-preservation aluminous gusset plate and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115075495A true CN115075495A (en) | 2022-09-20 |
| CN115075495B CN115075495B (en) | 2024-04-26 |
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|---|---|---|---|---|
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| CN205387796U (en) * | 2016-03-16 | 2016-07-20 | 重庆大学 | Capillary network radiation heat transfer furred ceiling board and furred ceiling structure of mating formation thereof |
| CN209145039U (en) * | 2018-11-09 | 2019-07-23 | 王文涛 | A kind of wall heat insulation material being easily installed |
| CN110258892A (en) * | 2019-07-01 | 2019-09-20 | 嘉兴博隆铝装饰板有限公司 | A kind of furred ceiling aluminum-pinch that heat preservation and soundproof performance is good |
| CN210482837U (en) * | 2019-07-26 | 2020-05-08 | 嘉兴市爱玛电器有限公司 | Special integrated furred ceiling aluminous gusset plate of kitchen ceiling |
| CN210947398U (en) * | 2019-09-19 | 2020-07-07 | 西安建筑科技大学 | Fire-retardant type wall body insulation construction with mounting |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203924544U (en) * | 2014-01-26 | 2014-11-05 | 昆山协多利金属有限公司 | A kind of ceiling insulation layer |
| CN205387796U (en) * | 2016-03-16 | 2016-07-20 | 重庆大学 | Capillary network radiation heat transfer furred ceiling board and furred ceiling structure of mating formation thereof |
| CN209145039U (en) * | 2018-11-09 | 2019-07-23 | 王文涛 | A kind of wall heat insulation material being easily installed |
| CN110258892A (en) * | 2019-07-01 | 2019-09-20 | 嘉兴博隆铝装饰板有限公司 | A kind of furred ceiling aluminum-pinch that heat preservation and soundproof performance is good |
| CN210482837U (en) * | 2019-07-26 | 2020-05-08 | 嘉兴市爱玛电器有限公司 | Special integrated furred ceiling aluminous gusset plate of kitchen ceiling |
| CN210947398U (en) * | 2019-09-19 | 2020-07-07 | 西安建筑科技大学 | Fire-retardant type wall body insulation construction with mounting |
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