CN117601225A - Preparation method of 5mm ultrathin inorganic artificial stone - Google Patents
Preparation method of 5mm ultrathin inorganic artificial stone Download PDFInfo
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- CN117601225A CN117601225A CN202311583863.1A CN202311583863A CN117601225A CN 117601225 A CN117601225 A CN 117601225A CN 202311583863 A CN202311583863 A CN 202311583863A CN 117601225 A CN117601225 A CN 117601225A
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- artificial stone
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- inorganic artificial
- curing
- mesh
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- 239000002969 artificial stone Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000004743 Polypropylene Substances 0.000 claims abstract description 26
- -1 polypropylene Polymers 0.000 claims abstract description 26
- 229920001155 polypropylene Polymers 0.000 claims abstract description 26
- 239000004576 sand Substances 0.000 claims abstract description 26
- 239000002910 solid waste Substances 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000011259 mixed solution Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000748 compression moulding Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 abstract description 9
- 239000004575 stone Substances 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000004579 marble Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007676 flexural strength test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
- B28B11/0845—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for smoothing
-
- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- 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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/006—Pressing by atmospheric pressure, as a result of vacuum generation or by gas or liquid pressure acting directly upon the material, e.g. jets of compressed air
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of 5mm ultrathin inorganic artificial stone, and relates to a preparation method of artificial stone. The invention aims to solve the technical problems of low bending and compressive strength, high brittleness and limited plate size of the existing ultrathin stone. The method comprises the following steps: 1. uniformly stirring a water reducing agent, a waterproof agent and water to obtain a mixed solution; adding silica sand, solid waste aggregate and polypropylene fiber into a stirrer, uniformly stirring, adding mixed solution, cement, metakaolin and emulsion, and stirring to obtain uniform mixture; 2. pressing and forming to obtain a blank; 3. curing; 4. and demolding the blank, performing secondary maintenance, and polishing. The ultrathin inorganic artificial stone prepared by the invention not only can reduce the stone decoration cost, but also can be directly adhered on a wallboard or on the ground by using neutral structural adhesive, thereby saving the decoration time and avoiding the pollution, water spots, white and other phenomena caused by cement whiskering on stone decoration and decoration surfaces. The method is used for preparing the ultrathin inorganic artificial stone.
Description
Technical Field
The invention relates to a method for preparing artificial stone.
Background
With the strengthening of the national ecological protection, the exploitation amount of natural marble is reduced and the inherent limitation of ceramic products, inorganic artificial stone is pushed to the wave tip of the market, the production technology is mature, and the market demand of thinner and lighter inorganic artificial stone is increasing.
The existing ultrathin artificial stone is manufactured by a raw material pressing plate method/natural marble Dan Yuandan is sliced by a gang saw, polished to 5mm, polished for polishing, polished, and bonded by a back net to increase the toughness. The ultrathin plate made of the product/natural marble raw stone by the block pressing method has low breaking strength and compression strength, and is easy to fracture when being sliced by a gang saw, so that the size of the ultrathin plate is limited.
Disclosure of Invention
The invention aims to solve the technical problems of low flexural compressive strength, large brittleness and limited plate size of the existing ultrathin stone, and provides a preparation method of a 5mm ultrathin inorganic artificial stone.
The 5mm ultrathin inorganic artificial stone is prepared from, by mass, 10-15 parts of 8-16 mesh silica sand, 10-20 parts of 16-26 mesh silica sand, 10-20 parts of 26-40 mesh silica sand, 0-10 parts of 325 mesh silica powder, 10-15 parts of 8-16 mesh solid waste aggregate, 0-10 parts of 16-26 mesh solid waste aggregate, 0-10 parts of 26-40 mesh solid waste aggregate, 0-1 part of ultrashort polypropylene fiber, 0-1 part of short polypropylene fiber, 0-5 parts of high collar clay, 3-6 parts of emulsion, 1-2 parts of water reducer, 0.05-0.1 part of waterproof agent, 20-30 parts of 525# white cement and 1-2 parts of water.
The preparation method of the 5mm ultrathin inorganic artificial stone comprises the following steps of
1. Uniformly stirring a water reducing agent, a waterproof agent and water to obtain a mixed solution;
adding silica sand, solid waste aggregate and polypropylene fibers into a stirrer, stirring uniformly, adding the mixed solution, stirring, adding cement and metakaolin, stirring, adding emulsion, and stirring to obtain a uniform mixture;
2. placing the mixture obtained in the step one into a 5mm die, and performing compression molding in a vacuum state to obtain a blank;
3. placing the blank after the second molding step in a curing chamber for curing;
4. demolding the blank after curing in the third step, then performing secondary curing, and polishing to obtain the 5mm ultrathin inorganic artificial stone.
According to the method, on the basis of preparing the inorganic artificial stone by adopting refined calcium sand/silica sand or partial solid waste as aggregate, white 100% polypropylene fibers with different lengths are added in the process, so that the strain hardening behavior, the cracking resistance and the ductility of the product are further improved.
The invention adopts single-piece vacuum compression molding, so that the 5mm ultrathin plate has high flexural compression strength; the short fibers can strengthen the pre-cracking performance, and plays a role in improving initial cracking load by restraining microcracks; the long fibers strengthen the performance after cracking, play a bridging role, strengthen the ductility of concrete, and the polypropylene fibers with different lengths and lengths in proper proportion make the 5mm ultrathin inorganic artificial stone more resistant; the building solid waste is used as aggregate for filling, so that the cost can be reduced, the resources can be saved, and the environment can be improved.
The invention has the beneficial effects that:
the ultrathin inorganic artificial stone prepared by the invention not only can reduce the stone decoration cost, but also can be directly adhered on a wallboard or on the ground by using neutral structural adhesive, thereby saving the decoration time and avoiding the pollution, water spots, white and other phenomena caused by cement whiskering on stone decoration and decoration surfaces. Besides direct adhesion, the adhesive can also be made into honeycomb plates, composite plates and the like.
The ultra-thin marble prepared by the invention expands the application range of the ultra-thin marble due to the light weight of the ultra-thin marble, and can be widely used for paving high-rise floors and reducing the structural bearing capacity of the floors.
The method is used for preparing the ultrathin inorganic artificial stone.
Detailed Description
The first embodiment is as follows: the preparation method of the 5mm ultrathin inorganic artificial stone comprises the following steps of
1. Uniformly stirring a water reducing agent, a waterproof agent and water to obtain a mixed solution;
adding silica sand, solid waste aggregate and polypropylene fibers into a stirrer, stirring uniformly, adding the mixed solution, stirring, adding cement and metakaolin, stirring, adding emulsion, and stirring to obtain a uniform mixture;
2. placing the mixture obtained in the step one into a 5mm die, and performing compression molding in a vacuum state to obtain a blank;
3. placing the blank after the second molding step in a curing chamber for curing;
4. demolding the blank after curing in the third step, then performing secondary curing, and polishing to obtain the 5mm ultrathin inorganic artificial stone.
The second embodiment is as follows: the first difference between this embodiment and the specific embodiment is that: the silica sand in the first step is 8-16 mesh silica sand, 16-26 mesh silica sand, 26-40 mesh silica sand and 325 mesh silica powder. The other is the same as in the first embodiment.
And a third specific embodiment: this embodiment differs from the first or second embodiment in that: the solid waste aggregate in the first step is 8-16 mesh solid waste aggregate, 16-26 mesh solid waste aggregate and 26-40 mesh solid waste aggregate. The other is the same as the first or second embodiment.
The specific embodiment IV is as follows: this embodiment differs from one of the first to third embodiments in that: the polypropylene fibers in the first step are ultrashort polypropylene fibers and short polypropylene fibers, the length of the ultrashort polypropylene fibers is lower than 6mm, and the length of the short polypropylene fibers is 6-15mm. The other is the same as in one of the first to third embodiments.
Fifth embodiment: this embodiment differs from one to four embodiments in that: the cement in the first step is 525# white cement. The others are the same as in one to one fourth embodiments.
Specific embodiment six: this embodiment differs from one of the first to fifth embodiments in that: the method comprises the following steps of, by mass, 10-15 parts of 8-16 mesh silica sand, 10-20 parts of 16-26 mesh silica sand, 10-20 parts of 26-40 mesh silica sand, 0-10 parts of 325 mesh silica powder, 10-15 parts of 8-16 mesh solid waste aggregate, 0-10 parts of 16-26 mesh solid waste aggregate, 0-10 parts of 26-40 mesh solid waste aggregate, 0-1 part of ultra-short polypropylene fiber, 0-1 part of short polypropylene fiber, 0-5 parts of high collar clay, 3-6 parts of emulsion, 1-2 parts of water reducer, 0.05-0.1 part of waterproof agent, 20-30 parts of 525# white cement and 1-2 parts of water. The others are the same as in one of the first to fifth embodiments.
Seventh embodiment: this embodiment differs from one of the first to sixth embodiments in that: and step two, the vacuum degree of the compression molding is-0.095 MPa, the pressure maintaining time of the press is 120-180s, and the pressure of the press is 12-16MPa. The others are the same as in one of the first to sixth embodiments.
Eighth embodiment: this embodiment differs from one of the first to seventh embodiments in that: the thickness of the blank plate obtained in the second step is 7mm. The other is the same as in one of the first to seventh embodiments.
Detailed description nine: this embodiment differs from one to eight of the embodiments in that: and step three, curing at 20-40 ℃ with humidity not less than 95% for 24h. The others are the same as in one to eight embodiments.
Detailed description ten: this embodiment differs from one of the embodiments one to nine in that: and step four, the secondary curing is closed spraying curing, the curing environment temperature is controlled to be 20-40 ℃, the humidity is more than or equal to 95%, and the curing time is 14-28d. The others are the same as in one of the embodiments one to nine.
The present invention is not limited to the above embodiments, and the object of the invention can be achieved by one or a combination of several embodiments.
Example 1:
the preparation method of the 5mm ultrathin inorganic artificial stone comprises the following steps of
1. Uniformly stirring 1 part of water reducer, 0.1 part of waterproof agent and 1.5 parts of water according to mass fraction to obtain a mixed solution;
adding 12 parts of 8-16 mesh silica sand, 16-26 mesh silica sand, 16 parts of 26-40 mesh silica sand, 5 parts of 325 mesh silica powder, 12 parts of 8-16 mesh solid waste aggregate, 2 parts of 16-26 mesh solid waste aggregate, 2 parts of 26-40 mesh solid waste aggregate, 0.5 part of ultrashort polypropylene fiber and 0.3 part of short polypropylene fiber into a stirrer, uniformly stirring for 1-2 min, adding the mixed solution, stirring for 2-3 min, adding 23 parts of 525# white cement and 4 parts of metakaolin, stirring for 3-5 min, and adding emulsion, stirring for 3-5 min to obtain a uniform mixture;
2. placing the mixture obtained in the step one into a 5mm die, and performing compression molding under a vacuum state, wherein the vacuum degree of the compression molding is-0.095 MPa, the pressure maintaining time of a press is 120s, and the pressure of the press is 12MPa to obtain a 7mm blank;
3. placing the blank after the second molding step in a curing chamber for curing, wherein the curing temperature is 20 ℃, the humidity is more than or equal to 95%, and the curing time is 24 hours;
4. demolding the rough board after curing in the third step, then performing secondary curing, wherein the secondary curing is closed spraying curing, the curing environment temperature is controlled to be 20 ℃, the humidity is more than or equal to 95%, the curing time is 14d, and polishing to obtain the 5mm ultrathin inorganic artificial stone.
The 5mm ultra-thin inorganic artificial stone prepared in example 1 was recorded as sample one, the inorganic artificial stone prepared without adding polypropylene fiber was recorded as sample two, and the related mechanical properties thereof were measured according to the requirements of the building industry standard terrazzo-Cement artificial stone for architectural decoration (JC/T507-2012), and the results are shown in the following table:
28d mechanical property comparison
| Name of the name | Flexural strength MPa | Compressive strength MPa |
| Sample one | 20.2 | 125.3 |
| Sample two | 15.7 | 90.6 |
The experimental test data shows that: under the condition of not affecting the surface effect of the inorganic artificial stone, the invention is doped with long and short fibers in proper proportion, the flexural strength is improved by 28.6%, and the compressive strength is improved by 38.3%. In terms of toughness, the sample block which is doped with the polypropylene fiber and subjected to the flexural strength test only generates a crack, and the sample block cannot be broken due to impact force.
Claims (10)
1. A preparation method of 5mm ultrathin inorganic artificial stone is characterized by comprising the following steps of
1. Uniformly stirring a water reducing agent, a waterproof agent and water to obtain a mixed solution;
adding silica sand, solid waste aggregate and polypropylene fibers into a stirrer, stirring uniformly, adding the mixed solution, stirring, adding cement and metakaolin, stirring, adding emulsion, and stirring to obtain a uniform mixture;
2. placing the mixture obtained in the step one into a 5mm die, and performing compression molding in a vacuum state to obtain a blank;
3. placing the blank after the second molding step in a curing chamber for curing;
4. demolding the blank after curing in the third step, then performing secondary curing, and polishing to obtain the 5mm ultrathin inorganic artificial stone.
2. The method for preparing 5mm ultrathin inorganic artificial stone according to claim 1, wherein the silica sand in the step one is 8-16 mesh silica sand, 16-26 mesh silica sand, 26-40 mesh silica sand and 325 mesh silica powder.
3. The method for preparing 5mm ultrathin inorganic artificial stone according to claim 1, wherein the solid waste aggregate in the step one is 8-16 mesh solid waste aggregate, 16-26 mesh solid waste aggregate and 26-40 mesh solid waste aggregate.
4. The method for preparing the 5mm ultrathin inorganic artificial stone according to claim 1, wherein the polypropylene fibers in the step one are ultrashort polypropylene fibers and short polypropylene fibers, the length of the ultrashort polypropylene fibers is lower than 6mm, and the length of the short polypropylene fibers is 6-15mm.
5. The method for preparing 5mm ultra-thin inorganic artificial stone according to claim 1, wherein the cement in the first step is 525# white cement.
6. The method for preparing the 5mm ultrathin inorganic artificial stone according to claim 1, 2, 3, 4 or 5, wherein the method is characterized by comprising the following steps of, by mass, 10-15 parts of 8-16 mesh silica sand, 10-20 parts of 16-26 mesh silica sand, 10-20 parts of 26-40 mesh silica sand, 0-10 parts of 325 mesh silica powder, 10-15 parts of 8-16 mesh solid waste aggregate, 0-10 parts of 16-26 mesh solid waste aggregate, 0-10 parts of 26-40 mesh solid waste aggregate, 0-1 part of ultrashort polypropylene fiber, 0-1 part of short polypropylene fiber, 0-5 parts of high collar clay, 3-6 parts of emulsion, 1-2 parts of water reducer, 0.05-0.1 part of waterproof agent, 20-30 parts of 525# white cement and 1-2 parts of water.
7. The method for preparing 5mm ultrathin inorganic artificial stone according to claim 1, wherein the vacuum degree of the compression molding in the second step is-0.095 MPa, the pressure maintaining time of the press is 120-180s, and the pressure of the press is 12-16MPa.
8. The method for preparing 5mm ultrathin inorganic artificial stone according to claim 1, wherein the thickness of the blank obtained in the second step is 7mm.
9. The method for preparing 5mm ultrathin inorganic artificial stone according to claim 1, wherein the curing temperature in the third step is 20-40 ℃, the humidity is more than or equal to 95%, and the curing time is 24 hours.
10. The method for preparing the 5mm ultrathin inorganic artificial stone according to claim 1, wherein the secondary curing in the step four is closed spraying curing, the curing environment temperature is controlled to be 20-40 ℃, the humidity is more than or equal to 95%, and the curing time is 14-28d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311583863.1A CN117601225A (en) | 2023-11-24 | 2023-11-24 | Preparation method of 5mm ultrathin inorganic artificial stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311583863.1A CN117601225A (en) | 2023-11-24 | 2023-11-24 | Preparation method of 5mm ultrathin inorganic artificial stone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117601225A true CN117601225A (en) | 2024-02-27 |
Family
ID=89952836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311583863.1A Pending CN117601225A (en) | 2023-11-24 | 2023-11-24 | Preparation method of 5mm ultrathin inorganic artificial stone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117601225A (en) |
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2023
- 2023-11-24 CN CN202311583863.1A patent/CN117601225A/en active Pending
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