CN109421156A - A kind of preparation method of plasterboard - Google Patents
A kind of preparation method of plasterboard Download PDFInfo
- Publication number
- CN109421156A CN109421156A CN201710721279.6A CN201710721279A CN109421156A CN 109421156 A CN109421156 A CN 109421156A CN 201710721279 A CN201710721279 A CN 201710721279A CN 109421156 A CN109421156 A CN 109421156A
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- China
- Prior art keywords
- embedded block
- plasterboard
- mentioned
- preparation
- gypsum slurry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Finishing Walls (AREA)
Abstract
A kind of preparation method of plasterboard is disclosed herein, includes the following steps: step a, prepares Gypsum slurry；Step b, by embedded block according in default spacing tripping in Gypsum slurry；Gypsum slurry and embedded block are carried out drying forming operation by step c；The application can be applied to board technology field, can effectively overcome defect existing in the prior art using the application, can be realized the embedded setting of connector of plasterboard, can effectively improve the structural stability of later period connection.
Description
Technical field
This application involves but be not limited to board technology field, especially a kind of preparation method of plasterboard.
Background technique
Thistle board is one of big dalle in China most widely used three, have it is light-weight, sound insulation, it is heat-insulated, plus
The feature that work performance is strong, construction method is easy.In the prior art, Thistle board is manufactured by raw material of desulfurized gypsum, is efficient
The effective way for dissolving desulfurized gypsum not only solves the problems, such as that thermal power plant's bulk solid waste pollutes environment, is also plasterboard
Factory provides cheap raw material.
Currently, desulfurized gypsum, greatly mostly from heat-engine plant desulfurized, quality has biggish fluctuation, for gypsum board products
Quality has large effect, for example paper bonding is bad, nail-holding ability is bad；In addition, with advances in technology, domestic and international plasterboard
Enterprise is proposed light gypsum board, but as plasterboard surface density reduces, the majority parameters such as timber intensity meet country
Relevant criterion requirement, but nail-holding ability is often difficult to meet actual demand.Since there is some difference for architecture construction, fitted up
, inevitably there is out-of-flatness situation in Cheng Zhong, and existing decoration construction solution is that multilayer plaster board is levelling or putty is smeared in later period use
It is levelling, it will definitely increase material utilization amount and cost in this way.
Summary of the invention
The technical issues of the application solves is to provide a kind of preparation method of plasterboard, can effectively overcome in the prior art
Existing defect is prepared plasterboard by above-mentioned preparation method, can be realized the embedded setting of connector of plasterboard, energy
Enough effectively improve the structural stability of later period connection.
In order to solve the above technical problems, including the following steps: this application provides a kind of preparation method of plasterboard
Step a prepares Gypsum slurry；
Step b, by embedded block according in default spacing tripping in Gypsum slurry；
Gypsum slurry and embedded block are carried out drying forming operation by step c.
The preparation method of above-mentioned plasterboard can also have following features,
The embedded block and the lower mask paper of Gypsum slurry bottom contact with each other.
The preparation method of above-mentioned plasterboard can also have following features,
The embedded block is to open up internal thread structural member.
The preparation method of above-mentioned plasterboard can also have following features,
The embedded block is the structural member for offering card slot.
The preparation method of above-mentioned plasterboard can also have following features,
External screw thread is provided on the outside of the embedded block.
The preparation method of above-mentioned plasterboard can also have following features,
Retention bead is provided on the outside of the embedded block.
The preparation method of above-mentioned plasterboard can also have following features,
The step b setting are as follows: by manipulator clamping embedded block, by embedded block according to default spacing tripping in gypsum material
In slurry.
The preparation method of above-mentioned plasterboard can also have following features,
The embedded block is set as cylindrical body, or is set as cone, or is set as prism.
The preparation method of above-mentioned plasterboard can also have following features,
The embedded block is set as plastics embedded block, or is set as metal embedded block.
The preparation method of above-mentioned plasterboard can also have following features,
The depth of the Gypsum slurry is h, h >=12mm.
The application above-mentioned technical proposal has the following beneficial effects:
Compared with the prior art, plasterboard is prepared by the above-mentioned preparation method of the application, can be realized itself and keel
The convenient attended operation of threaded connector in connector；Plate transports to after scene, and construction personnel can directly will be pre- on keel
If connecting hole and board body on threaded hole correspond, tighten corresponding bolt can be realized compare convenient connection behaviour
Make, the installation maintenance efficiency in later period can be effectively improved.
Further, the present invention can also can effectively improve embedded block and mounting groove by the setting of above-mentioned position limiting structure
Between connective stability, and then can effectively improve between the structural stability and board body and keel of board body
Connective stability.
Further, the present invention can also by above-mentioned externally threaded setting, can effectively improve embedded block and mounting groove it
Between adhesive force, and then the connective stability between embedded block and mounting groove can be effectively improved；It is above-mentioned externally threaded to be provided with
Select the completion when embedded block opens up the internal screw thread stage.
Further, the present invention can also can effectively improve embedded block and mounting groove by the setting of above-mentioned retention bead
Between adhesive force, and then the connective stability between embedded block and mounting groove can be effectively improved；Above-mentioned arc can also be passed through
The setting of protrusion, can effectively avoid the internal stress concentration phenomenon of itself wedge angle bring board body because of retention bead,
The internal structure stability of board body can be effectively improved, and then the overall structure stability of plasterboard can be effectively improved.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood by implementing the embodiment of the present invention.The purpose of the application and other advantages can be by illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the structure sectional view of the embodiment of the present invention one；
Fig. 2 is the structure sectional view of the embodiment of the present invention two；
Fig. 3 is the structure sectional view of the embodiment of the present invention four；
Fig. 4 is the notch main view of the embodiment of the present invention five；
Fig. 5 is the notch cross-sectional view of the embodiment of the present invention five；
Fig. 6 is the flow diagram of the embodiment of the present invention six；
It illustrates:
1- board body, 2- embedded block, 21- external screw thread, 22- internal screw thread, 23- position limiting structure, the slot that 24- is obliquely installed
Body, 25- card slot.
Specific embodiment
Embodiments herein is described in detail below in conjunction with attached drawing.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.
Embodiment one:
As shown in connection with fig. 1, it the embodiment of the invention provides a kind of plasterboard, including board body 1, is opened in board body 1
Equipped with mounting groove, mounting groove and board body 1 are integrally formed setting；Mounting groove is for cooperating keel connecting member, board body 1
It is fixed on keel by the cooperation between mounting groove and keel connecting member.
In concrete operations, matching between plasterboard and keel connecting member can be can be realized by the setting of above-mentioned mounting groove
Connection is closed, and then plasterboard can be stably mounted on keel；Above-mentioned mounting groove can be arranged according to default spacing in plate
On ontology 1, specifically corresponding production can be completed in formative stage；Mounting groove that above-mentioned integrated molding is arranged and plate sheet can be passed through
Body 1, the uncontrollability that can effectively avoid later period scene from processing, and can effectively avoid post-production bring stability
Defect.
Further, in the present embodiment, above-mentioned mounting groove is cylinder groove, is provided with embedded block 2, embedded block 2 in mounting groove
On offer internal screw thread 22 for connecting bolt.
In concrete operations, can by the internal screw thread 22 being arranged on above-mentioned embedded block 2, can be realized its in keel connecting member
Threaded connector convenient attended operation；Plate transports to after scene, and construction personnel can be directly by connection preset on keel
Threaded hole on hole and board body 1 corresponds, and tightening corresponding bolt can be realized the convenient attended operation compared, can
Effectively improve the installation maintenance efficiency in later period.
In order to effectively improve the connective stability between above-mentioned embedded block 2 and mounting groove；It is above-mentioned embedding in the present embodiment
Enter and is provided with position limiting structure between the lateral wall of block 2 and the inner sidewall of cylinder groove.
In concrete operations, it can be effectively improved between embedded block 2 and mounting groove by the setting of above-mentioned position limiting structure
Connective stability, and then the connection between the structural stability and board body 1 and keel of board body 1 can be effectively improved
Stability.
Preferably, in the present embodiment, above-mentioned position limiting structure is set on the external screw thread 21 being located on embedded block 2.
In concrete operations, it can be effectively improved between embedded block 2 and mounting groove by the setting of above-mentioned external screw thread 21
Adhesive force, and then the connective stability between embedded block 2 and mounting groove can be effectively improved；Above-mentioned external screw thread 21 is provided with choosing
Select the completion when embedded block 2 opens up 22 stage of internal screw thread.
Further, above-mentioned board body 1 with a thickness of h, h >=12mm.In concrete operations, the thickness of above-mentioned board body 1
Degree is preferably 15mm, and the board body 1 of above-mentioned 15mm thickness can guarantee after install embedded block 2, board body 1 still with compared with
High structural strength can effectively meet actual production requirement.
Embodiment two:
Second embodiment of the present invention provides a kind of plasterboard, main structure is similar with embodiment one, also includes board body
1, mounting groove is also offered in board body 1；About the specific setting of main structure, the record in embodiment one is referred to, this
Place is intended to illustrate difference between the two.
In the present embodiment, above-mentioned position limiting structure is set as retention bead 23；The outside of embedded block 2 is arranged in retention bead 23
On wall, and/or it is arranged on the inner sidewall of cylinder groove.
As shown in connection with fig. 2, in concrete operations, above-mentioned retention bead 23 is arranged on the lateral wall of embedded block 2, above-mentioned limit
The setting of protrusion 23, can also effectively improve the adhesive force between embedded block 2 and mounting groove, and then can effectively improve embedded block
Connective stability between 2 and mounting groove.
Further, in the present embodiment, above-mentioned retention bead 23 is preferably arranged to arc convex.
In concrete operations, itself point because of retention bead 23 can be effectively avoided by the setting of above-mentioned arc convex
The internal stress concentration phenomenon of angle bring board body 1 can effectively improve the internal structure stability of board body 1, into
And the overall structure stability of plasterboard can be effectively improved.
Embodiment three:
The embodiment of the present invention three provides a kind of plasterboard, and main structure is similar with embodiment one, also includes board body,
Also mounting groove is offered in board body；About the specific setting of main structure, the record in embodiment one is referred to, herein purport
Illustrating difference between the two.
In the present embodiment, bonded adhesives is filled between above-mentioned embedded block and cylinder groove.
In concrete operations, also can effectively it be avoided by filling volume bonded adhesives between embedded block and cylinder groove because of limit
The internal stress concentration phenomenon of board body brought by raised or externally threaded structure wedge angle, can effectively improve board body
Internal structure stability, and then the overall structure stability of plasterboard can be effectively improved.
Example IV:
The embodiment of the present invention four provides a kind of plasterboard, and main structure is similar with embodiment one, also includes board body,
Also mounting groove is offered in board body；About the specific setting of main structure, the record in embodiment one is referred to, herein purport
Illustrating difference between the two.
As shown in connection with fig. 3, in the present embodiment, above-mentioned mounting groove is the groove body 24 being obliquely installed, and groove body is for cooperating keel
The fin of upper setting.
In concrete operations, it can be can be realized and tilted on keel by the setting of the above-mentioned groove body 24 being obliquely installed
Above-mentioned fin, i.e., be inserted into the groove body 24 being obliquely installed, keel and plasterboard can be realized by the convenient connection between fin
Between convenient attended operation；Meanwhile the above-mentioned groove body 24 being obliquely installed, it can effectively avoid board body from being detached from keel
Fin can effectively improve the connective stability between board body and keel.
Embodiment five:
The embodiment of the present invention five provides a kind of plasterboard, and main structure is similar with embodiment one, also includes board body,
Also mounting groove is offered in board body；About the specific setting of main structure, the record in embodiment one is referred to, herein purport
Illustrating difference between the two.
In conjunction with shown in Fig. 4, Fig. 5, in the present embodiment, above-mentioned mounting groove is set as card slot 25, and card slot 25 is for cooperating keel
The protrusion of upper setting；Protrusion on above-mentioned keel can be protruded into from the circular hole region of 25 bottom of card slot, and be moved up, with clamping
In card slot 25.
In concrete operations, it can be can be realized between the protrusion that is arranged on keel by the setting of above-mentioned card slot 25
Convenient attended operation snaps onto above-mentioned protrusion in card slot 25, the convenient connection behaviour between keel and plasterboard can be realized
Make；Meanwhile snapping connection between above-mentioned card slot 25 and protrusion, it can effectively avoid board body from being detached from the protrusion on keel,
The connective stability between board body and keel can be effectively improved.
Embodiment six:
The embodiment of the present invention six provides a kind of preparation method of plasterboard, includes the following steps:
Step a prepares Gypsum slurry；
Step b, by embedded block according in default spacing tripping in Gypsum slurry；
Gypsum slurry and embedded block are carried out drying forming operation by step c.
In concrete operations, above-mentioned embedded block is to open up internal thread structural member, can pass through above-mentioned embedded block and gypsum material
Integrally formed set-up mode is starched, can be realized the embedded setting of connector.
Further, above-mentioned embedded block is to open up internal thread structural member, and above-mentioned embedded block can be with keel connecting member
In threaded connector convenient attended operation；Plate transports to after scene, and construction personnel can be directly by company preset on keel
The threaded hole connect in hole and board body corresponds, and tightening corresponding bolt can be realized the convenient attended operation compared, energy
Enough effectively improve the installation maintenance efficiency in later period.
In the present embodiment, step b concretely: by manipulator clamping embedded block, by embedded block according to default spacing
In tripping in Gypsum slurry.
In concrete operations, the application of above-mentioned manipulator can effectively improve the exact localization operation of embedded block, and then can
The overall precision that plasterboard is effectively ensured meets production requirement.
In order to effectively improve the structural stability of embedded block, in the present embodiment, above-mentioned embedded block and Gypsum slurry bottom
The lower mask paper in portion contacts with each other.
In concrete operations, contacting with each other between above-mentioned embedded block and lower mask paper, between capable of effectively improving
Connective stability, the bottom of above-mentioned embedded block can be bonded on lower mask paper, be stablized with further improving the installation of embedded block
The structural stability of property and plasterboard entirety.
In order to effectively improve the connective stability between embedded block and board body, in the present embodiment, above-mentioned insertion
It is provided on the outside of block on the outside of external screw thread or embedded block and is provided with retention bead.
In concrete operations, embedded block and plate can be effectively improved by the setting of above-mentioned external screw thread or retention bead
Adhesive force between ontology, and then the connective stability between embedded block and plasterboard can be effectively improved.
In the present embodiment, above-mentioned embedded block is set as cylindrical body, or is set as cone, or is set as prism；It is above-mentioned
Embedded block is set as plastics embedded block, or is set as metal embedded block.
In concrete operations, above-mentioned embedded block is plastic cylinder, and the structure setting of above-mentioned plastic cylinder can effectively drop
Low cost of manufacture, while also there are many advantageous effects such as light-weight, structural strength is big.
Further, the depth of above-mentioned Gypsum slurry is h, h >=12mm.
In concrete operations, the depth of above-mentioned Gypsum slurry is preferably arranged to 15mm, i.e., the plasterboard made through the above method
With a thickness of 15mm, the plasterboard of above-mentioned 15mm thickness can guarantee after embedded block is arranged, plasterboard knot still with higher
Structure intensity can effectively meet actual production requirement.
Optionally, in the present embodiment, above-mentioned embedded block is the structural member for offering card slot.
In concrete operations, above-mentioned embedded block can be with the convenient attended operation of fastener in keel connecting member；Plate transports to
To after scene, construction personnel can directly be corresponded the card slot on fastener preset on keel and board body, and will card
Fastener, which is caught in, can be realized the convenient attended operation compared in card slot, can effectively improve the installation maintenance efficiency in later period.
The record of one-embodiment six is it is found that the present invention can be can be realized by the setting of above-mentioned mounting groove in conjunction with the embodiments
Mating connection between plasterboard and keel connecting member, and then plasterboard can be stably mounted on keel；Above-mentioned installation
Slot can be arranged in board body according to default spacing, specifically can complete corresponding production in formative stage；Above-mentioned one can be passed through
The mounting groove and board body of body formed setting, the uncontrollability that can effectively avoid later period scene from processing, and can have
Effect avoids post-production bring Stable Defects.
Further, the present invention can also be can be realized it and be connect with keel by the internal screw thread being arranged on above-mentioned embedded block
The convenient attended operation of threaded connector in part；Plate transports to after scene, and construction personnel can directly will be preset on keel
Threaded hole on connecting hole and board body corresponds, and tightening corresponding bolt can be realized the convenient attended operation compared,
The installation maintenance efficiency in later period can be effectively improved.
Further, the present invention can also can effectively improve embedded block and mounting groove by the setting of above-mentioned position limiting structure
Between connective stability, and then can effectively improve between the structural stability and board body and keel of board body
Connective stability.
Further, the present invention can also by above-mentioned externally threaded setting, can effectively improve embedded block and mounting groove it
Between adhesive force, and then the connective stability between embedded block and mounting groove can be effectively improved；It is above-mentioned externally threaded to be provided with
Select the completion when embedded block opens up the internal screw thread stage.
Further, the present invention can also can effectively improve embedded block and mounting groove by the setting of above-mentioned retention bead
Between adhesive force, and then the connective stability between embedded block and mounting groove can be effectively improved；Above-mentioned arc can also be passed through
The setting of protrusion, can effectively avoid the internal stress concentration phenomenon of itself wedge angle bring board body because of retention bead,
The internal structure stability of board body can be effectively improved, and then the overall structure stability of plasterboard can be effectively improved.
Further, the present invention still can effectively be avoided by filling volume bonded adhesives between embedded block and cylinder groove
Because of the internal stress concentration phenomenon of board body brought by retention bead or externally threaded structure wedge angle, plate can be effectively improved
The internal structure stability of material ontology, and then the overall structure stability of plasterboard can be effectively improved.
Further, the present invention can also be can be realized it and be upwarped with keel by the setting of the above-mentioned groove body being obliquely installed
Above-mentioned fin, i.e., be inserted into the groove body being obliquely installed, keel and gypsum can be realized by the convenient connection between fin risen
Convenient attended operation between plate；Meanwhile the above-mentioned groove body being obliquely installed, it can effectively avoid board body from being detached from keel
Fin can effectively improve the connective stability between board body and keel.
Further, the present invention can also can be realized itself and the protrusion that is arranged on keel by the setting of above-mentioned card slot
Between convenient attended operation, i.e., above-mentioned protrusion is snapped onto card slot, the convenient connection between keel and plasterboard can be realized
Operation；Meanwhile snapping connection between above-mentioned card slot and protrusion, it can effectively avoid board body from being detached from the protrusion on keel,
The connective stability between board body and keel can be effectively improved.
In the description of the present application, term " installation ", " connected ", " connection ", " fixation " etc. be shall be understood in a broad sense, example
Such as, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, it can also be with
Indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the application
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by the embodiment of the present invention is as above, described
The content only embodiment of the present invention and the embodiment that uses for ease of understanding, be not intended to limit the invention embodiment.It is any
Technical staff in fields of the embodiment of the present invention, in the premise for not departing from spirit and scope disclosed by the embodiment of the present invention
Under, any modification and variation, but the scope of patent protection of the embodiment of the present invention can be carried out in the form and details of implementation,
Still it should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of preparation method of plasterboard, which comprises the steps of:
Step a prepares Gypsum slurry；
Step b, by embedded block according in default spacing tripping in Gypsum slurry；
Gypsum slurry and embedded block are carried out drying forming operation by step c.
2. the preparation method of plasterboard according to claim 1, which is characterized in that
The embedded block and the lower mask paper of Gypsum slurry bottom contact with each other.
3. the preparation method of plasterboard according to claim 1, which is characterized in that
The embedded block is to open up internal thread structural member.
4. the preparation method of plasterboard according to claim 1, which is characterized in that
The embedded block is the structural member for offering card slot.
5. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
External screw thread is provided on the outside of the embedded block.
6. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
Retention bead is provided on the outside of the embedded block.
7. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
The step b setting are as follows: by manipulator clamping embedded block, by embedded block according to default spacing tripping in Gypsum slurry
It is interior.
8. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
The embedded block is set as cylindrical body, or is set as cone, or is set as prism.
9. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
The embedded block is set as plastics embedded block, or is set as metal embedded block.
10. the preparation method of plasterboard according to any one of claims 1-4, which is characterized in that
The depth of the Gypsum slurry is h, h >=12mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710721279.6A CN109421156A (en) | 2017-08-21 | 2017-08-21 | A kind of preparation method of plasterboard |
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| CN201710721279.6A CN109421156A (en) | 2017-08-21 | 2017-08-21 | A kind of preparation method of plasterboard |
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| CN101235671A (en) * | 2008-02-05 | 2008-08-06 | 广州市建筑集团有限公司 | Precasting type glass fibre reinforced gypsum board and method of manufacture |
| CN101927522A (en) * | 2009-06-18 | 2010-12-29 | 上海盈创装饰设计工程有限公司 | Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum |
| CN205530872U (en) * | 2016-01-27 | 2016-08-31 | 南京奥捷墙体材料有限公司 | Modular GRC wallboard, GRC panel and GRC curtain |
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2017
- 2017-08-21 CN CN201710721279.6A patent/CN109421156A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004066A2 (en) * | 2005-03-11 | 2007-01-11 | Bpb Plc. | Exterior sheathing weather barrier construction and method of manufacture |
| CN101235671A (en) * | 2008-02-05 | 2008-08-06 | 广州市建筑集团有限公司 | Precasting type glass fibre reinforced gypsum board and method of manufacture |
| CN101927522A (en) * | 2009-06-18 | 2010-12-29 | 上海盈创装饰设计工程有限公司 | Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum |
| CN205530872U (en) * | 2016-01-27 | 2016-08-31 | 南京奥捷墙体材料有限公司 | Modular GRC wallboard, GRC panel and GRC curtain |
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