CN101927522B - Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum - Google Patents
Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum Download PDFInfo
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- CN101927522B CN101927522B CN 200910053370 CN200910053370A CN101927522B CN 101927522 B CN101927522 B CN 101927522B CN 200910053370 CN200910053370 CN 200910053370 CN 200910053370 A CN200910053370 A CN 200910053370A CN 101927522 B CN101927522 B CN 101927522B
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- glass fiber
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- roving fabric
- long fibre
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 31
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 24
- 239000010440 gypsum Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 230000002787 reinforcement Effects 0.000 title claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 39
- 239000004744 fabric Substances 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011268 mixed slurry Substances 0.000 abstract description 2
- 230000008092 positive effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 230000000750 progressive effect Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a manufacture method of a porous sound-absorption ceiling board made of glass fiber reinforcement gypsum, which comprises the following steps of: preparing slurry and blending, casting in a mold, demolding, dewatering and drying, wherein a certain quantity of slurry is spouted and casted in the cavity of the mold for casting in the mold; the corresponding quantity of short shreds are sprayed; then hanging parts and glass fiber roving long fibers are arranged; the procedures are repeated; and finally, the quantity of the slurry and the quantity of the glass fiber short shreds are sprayed according to requirements. The invention adopts a spraying method that the glass fiber short shreds, the glass fiber roving long fibers and high-intensity gypsum powder mixed slurry are casted into the cavity of the mold in a stratified mode to be fully distributed in each space position of products, and the contents of the glass fiber long shreds and the glass fiber short shreds in the products are ensured not to be deformed. the products obtained by the manufacture method have the advantages of less dry-wet shrinkage, high intensity, light weight and good sound effect; the blank space that the glass fiber reinforcement gypsum can not be made into the traditional porous sound-absorption board is filled up; and remarkable progress and positive effect are obtained.
Description
Technical field
The present invention relates to a kind of dalle of construction material, relate in particular to a kind of manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum.
Background technology
At present; Raising along with rapid development of economy and people's living standard; People have proposed the requirement of acoustics to most building; Not only showing has such requirement to buildings such as music hall, grand theater, assembly halls, at speech room, classroom, singing-hall even the local-style dwelling houses of school, railway car etc. such requirement is arranged all also.In the prior art, for the requirement of satisfying acoustics normally in the framework of wooden or metal filled glass fiber cotton etc. process porous material, and then cover metallic plate or other sheet material that is provided with sound-absorption hole, thereby constitute sound absorbing layer.This structure complex procedures, cost increases, and sound-absorbing material forms dust and contaminated environment easily in the work progress at the scene, and therefore optimal method is directly to process porous sound-absorption ceiling board made with glass fiber reinforced gypsum.But for the structure that is similar to porous, aperture; Because of its variation varied; The short felt of glass fibre can't be laid, though grid cloth can be laid, its content can not reach requirement again; It almost is helpless making for the member employing glass fiber reinforced gypsum of this fancy structure, can only abandon.
Summary of the invention
The manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum that the objective of the invention is to be directed against the prior art weak point and a kind of optimization production technology is provided, reduces production costs.
The present invention through following technical scheme in to realize: a kind of manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum, its special character is to may further comprise the steps successively:
Step 1; Join the slurry mix: calculate the required amount of member of making; Press following proportioning: high strength gypsum powder 100, woven glass roving fabric long fibre bundle: >=5, water reducer (0.2～0.5) %, set retarder (0.1～0.5) %, water 30～33 batchings; It is for use to take out woven glass roving fabric long fibre bundle, and all the other are put into mixer and stir, and mixing time is 10～30 seconds;
Step 2; Molded type: model is placed on the shaking table; In die cavity, be coated with one deck releasing agent, the Vibration on Start-up workbench, hand-held slurry nozzle is gone into a certain amount of slurry of preparing at model cavity spray to cast; The glass chopped silk of hand-held simultaneously short chopping lance ejection respective amount; Horizontal positioned was hung built-in fitting after both injections finished, and made it partly expose mould perpendicular to the flat orifice plate of hanging, and will open otch greater than the glass fiber sheets felt centre of suspender member flat of bottom and partly be enclosed within on its horizonal base plate from hanging orifice plate;
Step 4, the demoulding, dehydration, drying: treat the demoulding after 30 minutes, take out finished product, send into hothouse, temperature is controlled at 60～80 ℃, and the time is 4 hours.
It is the amount that goes out to need the glass fibre of interpolation according to goods slurry therewith total amount percentage calculation that said step 2 repeats aforementioned operation number of times for several times; Its apportion is become woven glass roving fabric long fibre and short chopping amount, again according to the long stapled amount of woven glass roving fabric and consider that shape of products calculates number of times that applies and the amount that need add at every turn.
Good effect of the present invention is: the manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum that the present invention proposes; Adopt spraying process; Cast in glass chopped silk, woven glass roving fabric long fibre and high strength gypsum powder mixed slurry in the die cavity by different level; Let it be fully distributed in each space of goods, guarantee that the content of the long and short chopping of glass fibre in goods keeps the shape.The outward appearance that such goods had both had the glass fiber reinforced gypsum layer is fine and closely woven magnificent; Indeformable, intensity is high; Advantage that can be seamless spliced can keep the fancy structure of various porous, aperture again, through the size of convex form, groove through hole; Change sound-absorbing effect, thereby reach desirable acoustics different frequency bands.According to the porous sound-absorption ceiling board made that the present invention makes, it is little to have a distortion, and it is little to do wet shrinkage factor; Intensity is high; The product breaking load is big, in light weight, can alleviate main building weight and member load, and having filled up original porous sound absorbing plate can't be with the blank of glass fiber reinforced gypsum making; Having obtained obvious improvement and positive effect, is a kind of preparation method of the high-quality novel green goods that can save a large amount of timber that supply to promote.
Description of drawings
Fig. 1 is an embodiment of the invention process flow chart.
Fig. 2 is one embodiment of the present of invention dispensing woven glass roving fabric sketch map.
The specific embodiment
Below in conjunction with embodiment the present invention is done further description:
Fig. 1 is an embodiment of the invention process flow chart.Its step is following:
Step 1 is joined the slurry mix: calculate the required amount of member of making, press following proportioning: high strength gypsum powder 100, woven glass roving fabric long fibre bundle 5, water reducer 0.3%, set retarder 0.3%, water 33 batchings.It is for use to take out woven glass roving fabric long fibre bundle earlier, and all the other batchings are put into mixer and stirred, and mixing time is 20 seconds;
Step 2, molded type: according to the amount of the glass fibre that adds, and products thickness draws the amount that each need add and the number of times of dispensing.Goods are the alternate rectangular substrate of strip convex-concave for square in the present embodiment; In it is the groove of strip, have some through holes, its size is following: be 1500 * 1500 * 120mm, be raised line shape place dispensing woven glass roving fabric long fibre and put one deck according to calculating; Two layers are put in the rectangular substrate place; Three layers of its meters, therefore strengthening gypsum slurry divides four casting, the short chopping of jeting fiber in the time of the casting slurry.It is for use respectively woven glass roving fabric long fibre bundle to be put into the feed bin of short chopping spray gun and roving long fibre nozzle by amount of calculation.After finishing, preparation formally goes into the mould casting.
Model is placed on the shaking table, in die cavity, be coated with one deck releasing agent, the Vibration on Start-up workbench; Hand-held slurry nozzle is gone into 1/4 of the slurry prepared by amount of calculation at model cavity spray to cast; The air pressure adjustment of nozzle is at 0.7Mpa, and emitted dose is 10～15 liters/minute, the glass chopped silk of hand-held simultaneously short chopping lance ejection respective amount; The woven glass roving fabric long fibre is cut by the spray gun internal cutter automatically; Cutting back length is 2～5mm, and empty blow pressure power is 0.7Mpa, and horizontal positioned was hung built-in fitting after both injections finished; Make it partly expose mould, will open otch greater than the glass fiber sheets felt centre of suspender member flat of bottom and partly be enclosed within on its horizonal base plate from hanging orifice plate perpendicular to the flat orifice plate of hanging.
Step 4, the demoulding, dehydration, drying: treat the demoulding after 30 minutes, take out finished product, send into hothouse, temperature is controlled at 60～80 ℃, and the time is 4 hours.
Porous sound-absorption ceiling board made of glass fiber reinforcement gypsum according to above-mentioned prescription and preparation method are processed carries out the test of mechanical performance, and its result is following:
| Sequence number | Project | Unit | Actual measurement |
| 1 | Bending strength | Mpa | 23.5 |
| 2 | Compression strength | Mpa | 15.8 |
| 3 | Fire resistance | The A level |
This plate carries out acoustic absorptivity and detects, and is 0.50 for frequency/He Zhi average sound absorption coefficient in 100～5000/ He Zhi scopes.
Above-mentioned instance is not construed as limiting the invention, and all employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within protection scope of the present invention.
Claims (2)
1. manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum is characterized in that may further comprise the steps successively:
Step 1; Join the slurry mix: calculate the required amount of member of making; Press following proportioning: high strength gypsum powder 100, woven glass roving fabric long fibre bundle >=5, water reducer 0.2～0.5, set retarder 0.1～0.5, water 30～33 batchings; It is for use to take out woven glass roving fabric long fibre bundle, and all the other are put into mixer and stir, and mixing time is 10～30 seconds;
Step 2; Molded type: model is placed on the shaking table; In die cavity, be coated with one deck releasing agent, the Vibration on Start-up workbench, hand-held slurry nozzle is gone into a certain amount of slurry of preparing at model cavity spray to cast; The glass chopped silk of hand-held simultaneously short chopping lance ejection respective amount; Horizontal positioned was hung built-in fitting after both injections finished, and made it partly expose mould perpendicular to the flat orifice plate of hanging, and will open otch greater than the glass fiber sheets felt centre of suspender member flat of bottom and partly be enclosed within on its horizonal base plate from hanging orifice plate;
Step 3, numerical control or manual make woven glass roving fabric long fibre bundle nozzle be positioned at mould certain altitude place, along the spacing of mould institute by pre-set program given direction discharge a certain amount of woven glass roving fabric long fibre in order; Repeat the hand-held slurry nozzle of aforementioned operation at a certain amount of slurry of preparing of model cavity spray to cast after accomplishing dispensing; The glass chopped silk of hand-held simultaneously short chopping lance ejection respective amount; Reach aequum and apply layer of glass sheet felt afterwards at the place of hanging; Numerical control or craft make woven glass roving fabric long fibre bundle nozzle be positioned at mould certain altitude place again; Along the spacing of mould institute by pre-set program given direction discharge a certain amount of woven glass roving fabric long fibre in order, repeat aforementioned operation for several times, has sprayed high strength gypsum slurry amount and glass chopped at last on request and has measured;
Step 4, the demoulding, dehydration, drying: treat the demoulding after 30 minutes, take out finished product, send into hothouse, temperature is controlled at 60～80 ℃, and the time is 4 hours.
2. according to the said manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum of claim 1; It is characterized in that it is the amount that goes out to need the glass fibre of interpolation according to goods slurry therewith total amount percentage calculation that said step 3 repeats aforementioned operation number of times for several times; Its apportion is become woven glass roving fabric long fibre and short chopping amount, again according to the long stapled amount of woven glass roving fabric and consider that shape of products calculates number of times that applies and the amount that need add at every turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910053370 CN101927522B (en) | 2009-06-18 | 2009-06-18 | Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910053370 CN101927522B (en) | 2009-06-18 | 2009-06-18 | Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum |
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| Publication Number | Publication Date |
|---|---|
| CN101927522A CN101927522A (en) | 2010-12-29 |
| CN101927522B true CN101927522B (en) | 2012-04-18 |
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| CN 200910053370 Active CN101927522B (en) | 2009-06-18 | 2009-06-18 | Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103304211B (en) * | 2013-06-09 | 2015-11-25 | 深圳市洪涛装饰股份有限公司 | A kind of manufacture method of Fiberglas reinforced plaster tablet |
| CN104129967B (en) * | 2014-07-30 | 2016-05-04 | 泗阳县弘达新型墙体材料有限公司 | Adiabatic light gypsum sheet material of a kind of sound insulation and preparation method thereof |
| CN109421156A (en) * | 2017-08-21 | 2019-03-05 | 北新集团建材股份有限公司 | A kind of preparation method of plasterboard |
| CN109424137A (en) * | 2017-08-21 | 2019-03-05 | 北新集团建材股份有限公司 | A kind of plasterboard |
| CN110374240A (en) * | 2019-08-13 | 2019-10-25 | 盈创新材料(苏州)有限公司 | Form bracing structure and its manufacturing method |
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| CN101927522A (en) | 2010-12-29 |
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Address after: 201502 room, room 5, No. 158, Lane 38, welfare Road, Hing tower, Jinshan District, Shanghai Patentee after: Yingchuang construction technology (Shanghai) Co. Ltd. Address before: 201707 Shanghai, Qingpu district outside the Pine Road, No. 5378 Patentee before: Shanghai Jiangong Construction Material Co., Ltd. |
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Application publication date: 20101229 Assignee: Zhejiang Jiayuan Real Estate Group Co. Ltd. Assignor: Yingchuang construction technology (Shanghai) Co. Ltd. Contract record no.: 2017310000016 Denomination of invention: Manufacture method of porous sound-absorption ceiling board made of glass fiber reinforcement gypsum Granted publication date: 20120418 License type: Common License Record date: 20170424 |
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