CN113666725A - Preparation method of nano ceramic-like sand grains - Google Patents
Preparation method of nano ceramic-like sand grains Download PDFInfo
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- CN113666725A CN113666725A CN202110918845.9A CN202110918845A CN113666725A CN 113666725 A CN113666725 A CN 113666725A CN 202110918845 A CN202110918845 A CN 202110918845A CN 113666725 A CN113666725 A CN 113666725A
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- mixed material
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- nano ceramic
- sand
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- 239000004576 sand Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000000463 material Substances 0.000 claims abstract description 77
- 239000002245 particle Substances 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 21
- 239000008188 pellet Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000377 silicon dioxide Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 20
- 235000012239 silicon dioxide Nutrition 0.000 claims description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 15
- 229910052791 calcium Inorganic materials 0.000 claims description 15
- 239000011575 calcium Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 15
- 239000000049 pigment Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 230000036541 health Effects 0.000 abstract description 5
- 239000004484 Briquette Substances 0.000 abstract 1
- 230000009471 action Effects 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9646—Optical properties
- C04B2235/9661—Colour
Abstract
The invention relates to a preparation method of a nano ceramic-like sand grain, which comprises the following steps: s1: preliminarily preparing silicon dioxide nano powder; s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder; s3: preparing a mixed material briquette; s4: pressing the mixed material pellets into tablets, putting the mixed material pellets into a mould, and pressing into granular mixed material pellet; s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles. According to the preparation method of the nano ceramic-like sand grains, the materials are changed into healthy materials, so that the health of children is not damaged, the wear resistance of mixed material cluster particles is improved, and the mixed material cluster particles cannot be decolored.
Description
Technical Field
The invention relates to the technical field of preparation of ceramic-like sand grains, in particular to a preparation method of nano ceramic-like sand grains.
Background
Adopt emulation sand grain to place in the fixed area often in children's recreation ground, can supply children to play, can play as children fall down in addition and can play the effect of buffering, common emulation sand grain in the market uses for a long time, and mutual friction can produce more powder between the emulation sand grain, leads to the powder to adhere to children's skin surface, causes the influence to children's health to, the easy decoloration of sand grain color.
Therefore, aiming at the problems, a preparation method of the nano ceramic-like sand particles is provided.
Disclosure of Invention
The invention aims to provide a preparation method of nano ceramic-like sand grains, which aims to solve the problems that the mutual friction among the ceramic-like sand grains can generate more powder when the ceramic-like sand grains are used for a long time, so that the powder is attached to the surface of the skin of a child, the health of the child is influenced, and the color of the sand grains is easy to decolor.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of nano ceramic-like sand grains comprises the following steps:
s1: preliminarily preparing silicon dioxide nano powder, and carrying out ultrafine grinding on silicon dioxide particles by an ultrafine grinder;
s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder;
s3: then stirring and mixing the silicon dioxide nano powder, the calcium powder, the edible glue, the water and the edible pigment according to a certain proportion to prepare a mixed material cluster;
s4: pressing the prepared mixed material dough into tablets by a tablet press, putting the mixed material dough into a mould, and pressing into granular mixed material dough particles;
s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles.
Preferably, in step S1, before the silica particles are pulverized, a screening process is performed to remove impurities in the silica particles.
Preferably, in step S2, the high-energy shock waves generated by the ultrasonic cavitation and the micro-jet flow cooperate to further pulverize the silica.
Preferably, in the step S3, the components include, by weight, 30-50 parts of silicon dioxide nano powder, 40 parts of calcium powder, 10 parts of edible glue, 40 parts of water, and 1 part of edible pigment.
Preferably, in the step S3, during the stirring process, the silicon dioxide nano powder and the calcium powder are firstly added, then the water is added for stirring, and then the edible glue and the edible pigment are added to fully and uniformly stir the materials, wherein the stirring temperature is 60 ℃.
Preferably, in the step S4, in the pressing process of the pressing mold, the mixed material pellet pressed in the pressing mold is primarily shaped by high temperature heating, the heating temperature is 600-.
Preferably, in the step S5, the mixed material pellet is conveyed to a high temperature heating box through a conveyor belt for heating treatment, wherein the temperature in the heating box is 1800-1900 ℃.
Compared with the prior art, the invention has the beneficial effects that: the preparation method of the nano ceramic-like sand comprises the following steps:
1. the materials are all healthy materials, so that gases which are not beneficial to body health can not be emitted, and the health of children can not be harmed;
2. the method has the advantages that the silicon dioxide on the surface of the mixed material group particles is melted by carrying out 1800-1900 ℃ high-temperature heating treatment on the mixed material group particles for the second time, the melted silicon dioxide is wrapped on the surface of the mixed material group particles, and after the melted silicon dioxide is cooled, a silicon dioxide protective layer is formed on the surface of the mixed material group particles, so that the surface of the mixed material group particles is smoother, the wear resistance of the mixed material group particles is improved, and the mixed material group particles cannot be decolored under the action of the silicon dioxide protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a technical scheme that: a preparation method of nano ceramic-like sand grains comprises the following steps:
s1: preliminarily preparing silicon dioxide nano powder, and carrying out ultrafine grinding on silicon dioxide particles by an ultrafine grinder;
s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder;
s3: then stirring and mixing the silicon dioxide nano powder, the calcium powder, the edible glue, the water and the edible pigment according to a certain proportion to prepare a mixed material cluster;
s4: pressing the prepared mixed material dough into tablets by a tablet press, putting the mixed material dough into a mould, and pressing into granular mixed material dough particles;
s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles.
Further, in step S1, before the silica particles are pulverized, a screening process is performed to remove impurities in the silica particles.
Further, in step S2, the high-energy shock waves generated by the ultrasonic cavitation and the micro-jet flow cooperate to further pulverize the silica.
Further, in the step S3, the components include, by weight, 30 parts of silicon dioxide nano powder, 40 parts of calcium powder, 10 parts of edible glue, 40 parts of water, and 1 part of edible pigment.
Further, in the step S3, during the stirring process, the silicon dioxide nano powder and the calcium powder are firstly added, then the water is added for stirring, and then the edible glue and the edible pigment are added to fully and uniformly stir the materials, wherein the stirring temperature is 60 ℃.
Further, in the step S4, in the pressing process of the pressing mold, the mixed material pellet pressed in the pressing mold is primarily shaped by high temperature heating, the heating temperature is 600-.
Further, in the step S5, the mixed material pellet is sent to a high temperature heating box through a conveyor belt for heating treatment, wherein the temperature in the heating box is 1800-1900 ℃.
Example 2
The invention provides a technical scheme that: a preparation method of nano ceramic-like sand grains comprises the following steps:
s1: preliminarily preparing silicon dioxide nano powder, and carrying out ultrafine grinding on silicon dioxide particles by an ultrafine grinder;
s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder;
s3: then stirring and mixing the silicon dioxide nano powder, the calcium powder, the edible glue, the water and the edible pigment according to a certain proportion to prepare a mixed material cluster;
s4: pressing the prepared mixed material dough into tablets by a tablet press, putting the mixed material dough into a mould, and pressing into granular mixed material dough particles;
s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles.
Further, in step S1, before the silica particles are pulverized, a screening process is performed to remove impurities in the silica particles.
Further, in step S2, the high-energy shock waves generated by the ultrasonic cavitation and the micro-jet flow cooperate to further pulverize the silica.
Further, in the step S3, the components include, by weight, 40 parts of silicon dioxide nano powder, 40 parts of calcium powder, 10 parts of edible glue, 40 parts of water, and 1 part of edible pigment.
Further, in the step S3, during the stirring process, the silicon dioxide nano powder and the calcium powder are firstly added, then the water is added for stirring, and then the edible glue and the edible pigment are added to fully and uniformly stir the materials, wherein the stirring temperature is 60 ℃.
Further, in the step S4, in the pressing process of the pressing mold, the mixed material pellet pressed in the pressing mold is primarily shaped by high temperature heating, the heating temperature is 600-.
Further, in the step S5, the mixed material pellet is sent to a high temperature heating box through a conveyor belt for heating treatment, wherein the temperature in the heating box is 1800-1900 ℃.
Example 3
The invention provides a technical scheme that: a preparation method of nano ceramic-like sand grains comprises the following steps:
s1: preliminarily preparing silicon dioxide nano powder, and carrying out ultrafine grinding on silicon dioxide particles by an ultrafine grinder;
s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder;
s3: then stirring and mixing the silicon dioxide nano powder, the calcium powder, the edible glue, the water and the edible pigment according to a certain proportion to prepare a mixed material cluster;
s4: pressing the prepared mixed material dough into tablets by a tablet press, putting the mixed material dough into a mould, and pressing into granular mixed material dough particles;
s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles.
Further, in step S1, before the silica particles are pulverized, a screening process is performed to remove impurities in the silica particles.
Further, in step S2, the high-energy shock waves generated by the ultrasonic cavitation and the micro-jet flow cooperate to further pulverize the silica.
The large-particle silicon dioxide is subjected to ultrafine grinding through the comprehensive action of impact, shearing, friction and the like generated by an ultrafine grinding machine, and then particles with different particle sizes are separated by using a high-efficiency grouping device, so that the homogenization and the specialization of the particle size distribution of the nano-silicon dioxide powder are realized. The physical method has simple production process, large production capacity and easy control of production process, but has higher requirement on raw materials, particles are agglomerated due to the increase of surface energy along with the reduction of particle size, the particle size of powder particles is difficult to further reduce, and the raw materials with certain concentration are synchronously crushed and dispersed in a crushing cylinder by utilizing the combined action of extrusion, shearing, impact and other acting forces generated by mutual collision of grinding media and high-energy shock waves and microjets generated by ultrasonic cavitation.
Further, in the step S3, the components include 50 parts of silicon dioxide nano powder, 40 parts of calcium powder, 10 parts of edible glue, 40 parts of water and 1 part of edible pigment.
Further, in the step S3, during the stirring process, the silicon dioxide nano powder and the calcium powder are firstly added, then the water is added for stirring, and then the edible glue and the edible pigment are added to fully and uniformly stir the materials, wherein the stirring temperature is 60 ℃.
Further, in the step S4, in the pressing process of the pressing mold, the mixed material pellet pressed in the pressing mold is primarily shaped by high temperature heating, the heating temperature is 600-.
Further, in the step S5, the mixed material pellet is sent to a high temperature heating box through a conveyor belt for heating treatment, wherein the temperature in the heating box is 1800-1900 ℃.
The method comprises the steps of carrying out 1800-1900 ℃ high-temperature heating treatment on mixed material agglomerate particles for the second time to melt silicon dioxide on the surfaces of the mixed material agglomerate particles, wrapping the melted silicon dioxide on the surfaces of the mixed material agglomerate particles, cooling the melted silicon dioxide to form a silicon dioxide protective layer on the surfaces of the mixed material agglomerate particles, enabling the surfaces of the mixed material agglomerate particles to be smoother, increasing the wear resistance of the mixed material agglomerate particles, and enabling the mixed material agglomerate particles not to generate decoloration under the action of the silicon dioxide protective layer
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A preparation method of nano ceramic-like sand grains is characterized by comprising the following steps: the preparation method of the nano ceramic-like sand comprises the following steps:
s1: preliminarily preparing silicon dioxide nano powder, and carrying out ultrafine grinding on silicon dioxide particles by an ultrafine grinder;
s2: carrying out ultrasonic crushing on the preliminarily prepared silicon dioxide nano powder in the starting process of the superfine crusher for further crushing treatment to obtain finished silicon dioxide nano powder;
s3: then stirring and mixing the silicon dioxide nano powder, the calcium powder, the edible glue, the water and the edible pigment according to a certain proportion to prepare a mixed material cluster;
s4: pressing the prepared mixed material dough into tablets by a tablet press, putting the mixed material dough into a mould, and pressing into granular mixed material dough particles;
s5: and (3) after demoulding the mixed material agglomerate particles, heating the mixed material agglomerate particles at high temperature again, and finally naturally cooling the mixed material agglomerate particles to prepare the nano ceramic-like sand particles.
2. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in step S1, before the silica particles are crushed, a screening process is performed to remove impurities in the silica particles.
3. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in step S2, the high-energy shock waves generated by the ultrasonic cavitation and the micro-jet flow act together to further pulverize the silica.
4. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in the step S3, the components include 30-50 parts of silicon dioxide nano powder, 40 parts of calcium powder, 10 parts of edible glue, 40 parts of water and 1 part of edible pigment.
5. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in the step S3, during the stirring process, the silicon dioxide nano powder and the calcium powder are firstly added, then the water is added for stirring, and then the edible glue and the edible pigment are added to fully and uniformly stir the materials, wherein the stirring temperature is 60 ℃.
6. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in the step S4, in the pressing process of the pressing mold, the mixed material pellet pressed in the mold is primarily shaped by high temperature heating at 600-.
7. The method for preparing the nano ceramic-like sand particles according to claim 1, which is characterized in that: in the step S5, the mixed material particles are sent to a high temperature heating box through a conveyor belt for heating treatment, wherein the temperature in the heating box is 1800-1900 ℃.
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| CN202110918845.9A CN113666725A (en) | 2021-08-11 | 2021-08-11 | Preparation method of nano ceramic-like sand grains |
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| CN1644553A (en) * | 2004-12-23 | 2005-07-27 | 江阴采麟彩砂制品有限公司 | Color sand and production thereof |
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| CN102180609A (en) * | 2011-01-28 | 2011-09-14 | 牛智勇 | Preparation process of vitrified color sand |
| CN104193208A (en) * | 2014-08-21 | 2014-12-10 | 常州红橙彩砂有限公司 | High-temperature sintered painted sand and preparation method thereof |
| CN107445601A (en) * | 2017-08-23 | 2017-12-08 | 亚士漆(上海)有限公司 | Low temperature glaze burning colorful sand and preparation method thereof |
| CN110194613A (en) * | 2019-05-27 | 2019-09-03 | 于海军 | A kind of imitative porcelain grains of sand preparation method of nanometer |
| CN112250455A (en) * | 2020-10-30 | 2021-01-22 | 德清县钢友耐火材料有限公司 | High-temperature refractory material and manufacturing process method thereof |
| CN113024233A (en) * | 2021-02-23 | 2021-06-25 | 宜城市森源新材料科技有限公司 | Artificial high-sphericity sand, anti-sticking sand for pre-paving waterproof coiled material and preparation method thereof |
-
2021
- 2021-08-11 CN CN202110918845.9A patent/CN113666725A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644553A (en) * | 2004-12-23 | 2005-07-27 | 江阴采麟彩砂制品有限公司 | Color sand and production thereof |
| CN101659393A (en) * | 2009-08-21 | 2010-03-03 | 江苏大学 | Method for preparing nanometer silica micropowder |
| CN102180609A (en) * | 2011-01-28 | 2011-09-14 | 牛智勇 | Preparation process of vitrified color sand |
| CN104193208A (en) * | 2014-08-21 | 2014-12-10 | 常州红橙彩砂有限公司 | High-temperature sintered painted sand and preparation method thereof |
| CN107445601A (en) * | 2017-08-23 | 2017-12-08 | 亚士漆(上海)有限公司 | Low temperature glaze burning colorful sand and preparation method thereof |
| CN110194613A (en) * | 2019-05-27 | 2019-09-03 | 于海军 | A kind of imitative porcelain grains of sand preparation method of nanometer |
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| CN113024233A (en) * | 2021-02-23 | 2021-06-25 | 宜城市森源新材料科技有限公司 | Artificial high-sphericity sand, anti-sticking sand for pre-paving waterproof coiled material and preparation method thereof |
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Application publication date: 20211119 |