CN106945167A - A kind of preparation method of sandwich sheet - Google Patents
A kind of preparation method of sandwich sheet Download PDFInfo
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- CN106945167A CN106945167A CN201710039539.1A CN201710039539A CN106945167A CN 106945167 A CN106945167 A CN 106945167A CN 201710039539 A CN201710039539 A CN 201710039539A CN 106945167 A CN106945167 A CN 106945167A
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- Prior art keywords
- core material
- sandwich sheet
- outer layer
- slurry
- preparation
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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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0081—Embedding aggregates to obtain particular properties
- B28B23/0087—Lightweight aggregates for making lightweight articles
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of preparation method of sandwich sheet, step is as follows：（1）Prepare slurry；（2）Fall to starch for the first time, the slurry prepared is poured into silica gel mould and stands 8 10 minutes；（3）Put plate；（4）Fall to starch for the second time；（5）Shaping and demoulding.The preparation method technique of the sandwich sheet that the present invention is provided is simple, provide needed for production process condition is low, low cost, plate construction are firm, easy to use.
Description
Technical field
The present invention relates to construction timber field, especially a kind of processing method of sandwich sheet.
Background technology
The sheet material such as traditional jade plate or marble slab is because itself quality is very heavy, and stress is easily damaged, so
Either in use, it is all extremely inconvenient or in transportation.
Now, developing rapidly with society, the living standard of people is improved constantly, the functional requirement to some products
More and more higher, traditional single plate material can not meet the life requirement of people, and then multi-functional sandwich sheet is increasingly
Liked by people, and sandwich sheet is usually to be made using the method for hot pressing or cold pressing, and these methods make sheet material work
Skill is complicated, and the condition of required offer is high, high cost, and obtained board quality is poor, and plate construction steadiness is bad, easily produces
Lamination, and this method production sandwich sheet need to use again after cutting into required shape in use mostly, this
Plant occupation mode very inconvenient.
The content of the invention
It is an object of the invention to provide a kind of preparation method of sandwich sheet, the sheet material gone out of this preparation method production into
Quality is lighter, stress not cracky, and technique is simple, and condition is not high needed for manufacturing process, and cost is relatively low, solves traditional cold
The problems such as condition needed for pressure, hot pressing sandwich sheet is high.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of preparation method of sandwich sheet, the sandwich sheet includes core material, the core material
Coated completely by outer casing, the outer casing is an entirety, the preparation method of the sandwich sheet is：Match somebody with somebody slurrying first
Material, the slurry of panel outer casing is matched somebody with somebody according to following mass parts：Calcium carbonate powder：37-43 parts, flyash：4-10 parts, hydrogen-oxygen
Change aluminium powder：10-16 parts, jade powder：24-30 parts, AB glue;10-16 parts；Then fall to starch for the first time, by needed for sandwich sheet
The half of outer layer slurry, which is first poured into, stands solidification 8-12 minutes in silica gel mould, the slurry in mould is reached half curdled appearance；
Then plate is put, core material is put on the outer layer slurry of half curdled appearance in a mold；Fall to starch for the second time again, put core material well
Afterwards, then by second half outer layer slurry needed for making sandwich sheet silica gel mould is poured into, makes core material complete by outer layer slurry
Covering；Last shaping and demoulding, falls after slurry is stood into 2-3 hours after starching, the demoulding obtains sandwich sheet finished product for the second time.Use this
Kind of method, which makes sandwich sheet, can replace the sheet materials such as traditional jade plate and marble slab, and quality of this sandwich sheet itself compared with
Gently, stress not cracky, either transport or using all facilitating a lot；In addition, the operating procedure of this production sandwich sheet
Simply, the condition of required offer is low, it is not necessary to improve or reduce the temperature in technical process, room temperature is operable, is solved
The trouble of change temperature is needed during traditional manufacturing technique, it is not required that change the pressure in technical process, normal pressure can be grasped
Make, it is resulting using this production technology because the working condition of harshness need not be provided greatly reducing production cost
Sandwich sheet outer casing be entirety, core material is coated on inside outer casing completely, and using AB glue side entirely
Position bonding make it that plate construction is very firm, is less prone to lamination.
Further, the concrete operation step of the preparation slurry is：
Step 1.1：Calcium carbonate powder, flyash, aluminium-hydroxide powder, jade powder are well mixed；
Step 1.2：The mixture that this glue of AB glue and step 1.1 are obtained is sufficiently mixed uniformly；
Step 1.3：The mixture that curing agent in AB glue and step 1.2 are obtained is sufficiently mixed uniformly.Match somebody with somebody in this way
Slurrying material, is mixed thoroughly outer layer slurry, and the board quality after being so molded is uniform, improves the quality of sandwich sheet.
Further, described this glue and curing agent by weight 1 prepared in slurry process in AB glue used:2, so
AB glue using proportioning can strengthen the hardness of whole sandwich sheet so that the sandwich sheet produced is more durable, uses model
Enclose also wider
Further, after the core material is placed on the outer layer slurry of half curdled appearance, by core material toward half curdled appearance
Outer layer slurry inside press, core material bottom is embedded in inside the outer layer slurry of half curdled appearance, thus, allow core material
It is fixed in mould, core material changes position due to falling to starch impulse force when preventing from starching for second, so as to cause what is finally obtained
Core material is not completely encapsulated in inside outer layer sheet material by finished product.
Further, the core material inside the outer layer slurry of the curdled appearance of insertion half meets following with silica gel mould
Condition：Silica gel mould internal vertical has gap in four of bottom surface between side and core material, meet this condition of molding, can
Core material is covered by completely inside sandwich sheet, be less prone to lamination, whole plate construction is more consolidated.
Further, fibrous mesh cloth is provided between the core material and outer casing, by core material and outer shell
One layer of setting or two layer web lattice cloth can improve the toughness of monoblock sheet material between body, plate construction is more consolidated, no
Easily ftractureed by external force, extend the service life of sandwich sheet.
Further, the shape specification of the silica gel mould can be selected according to required shape of product specification, it is to avoid
Use cutting action during sandwich sheet so that more facilitate using process.
Further, described core material be cystosepiment, the quality of monoblock sheet material can be mitigated, make sheet material use,
Transport all more facilitates.The cystosepiment can select polyurethane foam board, and battenboard can be improved using polyurethane foam board
The insulation of material, fire resistance.
Further, the jade powder can be substituted for silica flour, and different physical properties can be obtained using silica flour
Sandwich sheet, can make different purposes.
A kind of manufacture craft of sandwich sheet of the present invention, with following beneficial effect：
Firstth, easy to use, the sandwich sheet that this technique productions come out can replace the sheet materials such as jade plate and marble slab, and this
Sheet material lighter weight itself is planted, either transport is still using all very convenient；In addition, the production method of this sandwich sheet can
To select the silica gel mould of dimension to produce according to required shape of product specification, it is to avoid use the cutting work of process
Sequence so that it very easy to use, will not also cause plate material lamination or produce connection loosing to show because of cutting when using
As；
Secondth, technique is simple, only need to first pour into the half slurry required for the sandwich sheet prepared in silica gel mould, stands
After 8-12 minutes, core material is put into, second half slurry then poured into for the second time again required for sandwich sheet, then stand shaping
, the process numerous and diverse without other is that can obtain the fabulous sandwich sheet of steadiness；
3rd, the condition of required offer is low, and preparation slurry need to be only carried out at normal temperatures, is starched for the first time, is put plate, falls for second
Slurry, standing shaping, the demoulding, need not be provided in whole manufacturing process can complete all operations under specific temperature, normal temperature；It is whole
The individual process for making sandwich sheet can both complete this technique under specific pressure, normal pressure without providing；
4th, low cost, because the method technique very simple of this production sandwich sheet, the condition of required offer is also very
It is low, so cost is very low；
5th, plate construction is consolidated, and the core material of sandwich is wrapped by by the method for this production sandwich sheet completely to be bonded in
Inside sheet material, and outer casing is an entirety, and such structure avoids the shortcoming that general sheet material is easily layered well,
So that sheet material is more durable, and in the AB glue used this glue and curing agent ratio by weight：1：2 so that battenboard
The hardness of material outer layer is higher, more durable, also wider using scope.
Embodiment
In order that those skilled in the art more preferably, further details of theory are made with reference to embodiment to product of the present invention
It is bright.
Embodiment 1：
Step:1：Slurry preparation, matches somebody with somebody panel outer layer slurry according to following mass parts：Calcium carbonate powder：37 parts, flyash：5
Part, aluminium-hydroxide powder：12 parts, jade powder：30 parts, AB glue：16 parts, first by calcium carbonate powder, flyash, aluminium hydrate powder
End, jade powder are placed on to be uniformly mixed in same container and obtain mixture of powders；Added again toward in mixture of powders in AB glue
This glue, the mixture of this glue and above-mentioned various powder is uniformly mixed；Finally the curing agent of AB glue is added and contains this
Stirring is that various material mixings are uniform in the mixture of glue；Obtain the outer layer slurry of sandwich sheet, described this glue and curing agent
Ratio by weight：1:2.
Step 2：Fall to starch for the first time, the half of outer layer slurry is poured into silica gel mould needed for sandwich sheet being made, described
The shape specification of silica gel mould can be selected according to the shape specification of required sandwich sheet, and the slurry must be completely covered
The bottom of silica gel mould, but slurry can not be full of whole mould inside, first time slurry relief slurry is in silica gel mould well
It is middle to stand 8 minutes, reach half curdled appearance.
Step 3：Plate is put, after the upper fibrous mesh cloth of cladding outside core material, core material is placed in silica gel mould
On the outer layer slurry of half curdled appearance, by core material toward pressing inside the outer layer slurry of half curdled appearance, make under core material
Portion is embedded in inside the outer layer slurry of half curdled appearance, and foam is fixed on into a certain position in mould, selected internal layer core with this
Plate should be met：Core material side is more than 0.1 centimetre, note with the distance of silica gel mould medial surface behind embedded outer layer slurry inside
It is intended to the bottom that during pressing core material can not be allowed to touch silica gel mould, but the location of core material will after pressing
Meet：The upper surface of relatively low silica gel mould is wanted in core material upper surface, so just may insure core material completely by outer layer
Slurry is coated, and obtained sandwich sheet finished product structure is stable.
Step 4：Second falls to starch, and puts well after core material, then will make second half outer layer slurry needed for sandwich sheet
Pour into silica gel mould, core material is completely covered by outer layer slurry.
Step 5：Shaping and demoulding, second falls after slurry slurry pours into, allow first one-step forming sandwich sheet in silica gel mould
2 hours are stood, the then demoulding obtains sandwich sheet finished product.
Embodiment 2：
Step 1：Slurry preparation, matches somebody with somebody panel outer layer slurry according to following mass parts：Calcium carbonate powder：43 parts, flyash：4 parts,
Aluminium-hydroxide powder：16 parts, jade powder：24 parts, AB glue：13 parts, first by calcium carbonate powder, flyash, aluminium-hydroxide powder, jade
Stone flour, which is placed on to be uniformly mixed in same container, obtains mixture of powders；Again toward the sheet in addition AB glue in mixture of powders
Glue, the mixture of this glue and above-mentioned various powder is uniformly mixed；Finally the curing agent of AB glue is added containing this glue
Stirring is that various material mixings are uniform in mixture；Obtain the outer layer slurry of sandwich sheet, this described glue and the ratio of curing agent
Value is by weight：1:2.
Step 2：Fall to starch for the first time, the half of outer layer slurry is poured into silica gel mould needed for sandwich sheet being made, described
The shape specification of silica gel mould can be selected according to the shape specification of required sandwich sheet, and the slurry must be completely covered
The bottom of silica gel mould, but slurry can not be full of whole mould inside, first time slurry relief slurry is in silica gel mould well
It is middle to stand 10 minutes, reach half curdled appearance.
Step 3：Plate is put, after the upper fibrous mesh cloth of cladding outside core material, core material is placed in silica gel mould
On the outer layer slurry of half curdled appearance, by core material toward pressing inside the outer layer slurry of half curdled appearance, make under core material
Portion is embedded in inside the outer layer slurry of half curdled appearance, and foam is fixed on into a certain position in mould, selected internal layer core with this
Plate should be met：Core material side is more than 0.1 centimetre, note with the distance of silica gel mould medial surface behind embedded outer layer slurry inside
It is intended to the bottom that during pressing core material can not be allowed to touch silica gel mould, but the location of core material will after pressing
Meet：The upper surface of relatively low silica gel mould is wanted in core material upper surface, so just may insure core material completely by outer layer
Slurry is coated, and obtained sandwich sheet finished product structure is stable.
Step 4：Second falls to starch, and puts well after core material, then will make second half outer layer slurry needed for sandwich sheet
Pour into silica gel mould, core material is completely covered by outer layer slurry.
Step 5：Shaping and demoulding, second falls after slurry slurry pours into, allow first one-step forming sandwich sheet in silica gel mould
3 hours are stood, the then demoulding obtains sandwich sheet finished product.
Embodiment 3：
Step 1：Slurry preparation, matches somebody with somebody panel outer layer slurry according to following mass parts：Calcium carbonate powder：40 parts, flyash：7 parts,
Aluminium-hydroxide powder：13 parts, jade powder：27 parts, AB glue：13 parts, first by calcium carbonate powder, flyash, aluminium-hydroxide powder, jade
Stone flour, which is placed on to be uniformly mixed in same container, obtains mixture of powders；Again toward the sheet in addition AB glue in mixture of powders
Glue, the mixture of this glue and above-mentioned various powder is uniformly mixed；Finally the curing agent of AB glue is added containing this glue
Stirring is that various material mixings are uniform in mixture；Obtain the outer layer slurry of sandwich sheet, this described glue and the ratio of curing agent
Value is by weight：1:2.
Step 2：Fall to starch for the first time, the half of outer layer slurry is poured into silica gel mould needed for sandwich sheet being made, described
The shape specification of silica gel mould can be selected according to the shape specification of required sandwich sheet, and the slurry must be completely covered
The bottom of silica gel mould, but slurry can not be full of whole mould inside, first time slurry relief slurry is in silica gel mould well
It is middle to stand 12 minutes, reach half curdled appearance.
Step 3：Plate is put, after the upper fibrous mesh cloth of cladding outside core material, core material is placed in silica gel mould
On the outer layer slurry of half curdled appearance, by core material toward pressing inside the outer layer slurry of half curdled appearance, make under core material
Portion is embedded in inside the outer layer slurry of half curdled appearance, and foam is fixed on into a certain position in mould, selected internal layer core with this
Plate should be met：Core material side is more than 0.1 centimetre, note with the distance of silica gel mould medial surface behind embedded outer layer slurry inside
It is intended to the bottom that during pressing core material can not be allowed to touch silica gel mould, but the location of core material will after pressing
Meet：The upper surface of relatively low silica gel mould is wanted in core material upper surface, so just may insure core material completely by outer layer
Slurry is coated, and obtained sandwich sheet finished product structure is stable.
Step 4：Second falls to starch, and puts well after core material, then will make second half outer layer slurry needed for sandwich sheet
Pour into silica gel mould, core material is completely covered by outer layer slurry.
Step 5：Shaping and demoulding, second falls after slurry slurry pours into, allow first one-step forming sandwich sheet in silica gel mould
2.5 hours are stood, the then demoulding obtains sandwich sheet finished product.
Embodiment 4：
Step 1：Slurry preparation, matches somebody with somebody panel outer layer slurry according to following mass parts：Calcium carbonate powder：40 parts, flyash：10
Part, aluminium-hydroxide powder：10 parts, jade powder：30 parts, AB glue：10 parts, first by calcium carbonate powder, flyash, aluminium hydrate powder
End, jade powder are placed on to be uniformly mixed in same container and obtain mixture of powders；Added again toward in mixture of powders in AB glue
This glue, the mixture of this glue and above-mentioned various powder is uniformly mixed；Finally the curing agent of AB glue is added and contains this
Stirring is that various material mixings are uniform in the mixture of glue；Obtain the outer layer slurry of sandwich sheet, described this glue and curing agent
Ratio by weight：1:2.
Step 2：Fall to starch for the first time, the half of outer layer slurry is poured into silica gel mould needed for sandwich sheet being made, described
The shape specification of silica gel mould can be selected according to the shape specification of required sandwich sheet, and the slurry must be completely covered
The bottom of silica gel mould, but slurry can not be full of whole mould inside, first time slurry relief slurry is in silica gel mould well
It is middle to stand 11 minutes, reach half curdled appearance.
Step 3：Plate is put, after the upper fibrous mesh cloth of cladding outside core material, core material is placed in silica gel mould
On the outer layer slurry of half curdled appearance, by core material toward pressing inside the outer layer slurry of half curdled appearance, make under core material
Portion is embedded in inside the outer layer slurry of half curdled appearance, and foam is fixed on into a certain position in mould, selected internal layer core with this
Plate should be met：Core material side is more than 0.1 centimetre, note with the distance of silica gel mould medial surface behind embedded outer layer slurry inside
It is intended to the bottom that during pressing core material can not be allowed to touch silica gel mould, but the location of core material will after pressing
Meet：The upper surface of relatively low silica gel mould is wanted in core material upper surface, so just may insure core material completely by outer layer
Slurry is coated, and obtained sandwich sheet finished product structure is stable.
Step 4：Second falls to starch, and puts well after core material, then will make second half outer layer slurry needed for sandwich sheet
Pour into silica gel mould, core material is completely covered by outer layer slurry.
Step 5：Shaping and demoulding, second falls after slurry slurry pours into, allow first one-step forming sandwich sheet in silica gel mould
2.8 hours are stood, the then demoulding obtains sandwich sheet finished product.
Jade powder employed in the above any one embodiment can change the silica flour of same mass parts into.
The above, only presently preferred embodiments of the present invention not makees any formal limitation to the present invention；It is all
The those of ordinary skill of the industry can shown in by specification and the above and swimmingly implement the present invention；But, it is all to be familiar with
Professional and technical personnel without departing from the scope of the present invention, makes using disclosed above technology contents
A little variation, modification and evolution equivalent variations, be the present invention Equivalent embodiments；Meanwhile, all realities according to the present invention
Variation, modification and evolution of any equivalent variations that matter technology is made to above example etc., still fall within the technology of the present invention
Within the protection domain of scheme.
Claims (7)
1. a kind of preparation method of sandwich sheet, the sandwich sheet includes core material, it is characterised in that：Core material is outer
Layer housing is coated completely, and the outer casing is an entirety, and the preparation method of the sandwich sheet is as follows：
Step 1：Slurry preparation, matches somebody with somebody panel outer layer slurry according to following mass parts：Calcium carbonate powder：37-43 parts, flyash：
4-10 parts, aluminium-hydroxide powder：10-16 parts, jade powder or silica flour：24-30 parts, AB glue;10-16 parts；
Step 2：Fall to starch for the first time, it is solidifying that the half of the outer layer slurry needed for making sandwich sheet is first poured into standing in silica gel mould
Gu 8-12 minutes, the slurry in mould is reached half curdled appearance；
Step 3：Plate is put, core material is put on the outer layer slurry of half curdled appearance in a mold；
Step 4：Fall to starch for the second time, put well after core material, then second half outer layer slurry needed for making sandwich sheet is poured into
Silica gel mould, makes core material be completely covered by outer layer slurry；
Step 5：Shaping and demoulding, falls after slurry is stood into 2-3 hours after starching, the demoulding obtains sandwich sheet finished product for the second time.
2. a kind of preparation method of sandwich sheet according to claim 1, it is characterised in that：The specific step of the step 1
Suddenly it is：
Step 1.1：Calcium carbonate powder, flyash, aluminium-hydroxide powder, jade powder are well mixed；
Step 1.2：The mixture that this glue of AB glue and step 1.1 are obtained is sufficiently mixed uniformly；
Step 1.3：The mixture that curing agent in AB glue and step 1.2 are obtained is sufficiently mixed uniformly.
3. a kind of preparation method of sandwich sheet according to claim 1 or 2, it is characterised in that：Described AB this glue of glue with
The ratio of curing agent by weight 1：2.
4. a kind of preparation method of sandwich sheet according to claim 1, it is characterised in that：The core material is placed on half
After on the outer layer slurry of curdled appearance, by core material toward pressing inside the outer layer slurry of half curdled appearance, make core material bottom
Portion is embedded in inside the outer layer slurry of half curdled appearance.
5. a kind of preparation method for the sandwich sheet stated according to claim 4, it is characterised in that：The curdled appearance of insertion half
Core material inside outer layer slurry meets following condition with silica gel mould：Silica gel mould internal vertical is in four sides of bottom surface
There is gap between core material.
6. a kind of preparation method of sandwich sheet according to claim 1, it is characterised in that：Described core material with it is outer
Fibrous mesh cloth is provided between layer housing.
7. a kind of preparation method of sandwich sheet according to claim 1, it is characterised in that：Described core material is bubble
Foam plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039539.1A CN106945167A (en) | 2017-01-19 | 2017-01-19 | A kind of preparation method of sandwich sheet |
| PCT/CN2017/104276 WO2018133450A1 (en) | 2017-01-19 | 2017-09-29 | Production method of sandwich panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039539.1A CN106945167A (en) | 2017-01-19 | 2017-01-19 | A kind of preparation method of sandwich sheet |
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| CN106945167A true CN106945167A (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710039539.1A Pending CN106945167A (en) | 2017-01-19 | 2017-01-19 | A kind of preparation method of sandwich sheet |
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| CN (1) | CN106945167A (en) |
| WO (1) | WO2018133450A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107571377A (en) * | 2017-08-29 | 2018-01-12 | 北京禾木之家科技发展有限公司 | A kind of preparation method of light composite board |
| CN107965106A (en) * | 2017-11-24 | 2018-04-27 | 浙江庐森建材科技有限公司 | A kind of manufacture craft of novel environment friendly decorative stone |
| WO2018133450A1 (en) * | 2017-01-19 | 2018-07-26 | 刘文华 | Production method of sandwich panel |
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| WO2018133450A1 (en) * | 2017-01-19 | 2018-07-26 | 刘文华 | Production method of sandwich panel |
| CN107571377A (en) * | 2017-08-29 | 2018-01-12 | 北京禾木之家科技发展有限公司 | A kind of preparation method of light composite board |
| CN107965106A (en) * | 2017-11-24 | 2018-04-27 | 浙江庐森建材科技有限公司 | A kind of manufacture craft of novel environment friendly decorative stone |
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