CN107445604B - Low-expansion ceramic baking net and preparation method thereof - Google Patents
Low-expansion ceramic baking net and preparation method thereof Download PDFInfo
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- CN107445604B CN107445604B CN201610383774.6A CN201610383774A CN107445604B CN 107445604 B CN107445604 B CN 107445604B CN 201610383774 A CN201610383774 A CN 201610383774A CN 107445604 B CN107445604 B CN 107445604B
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- 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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- 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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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- 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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
Abstract
The invention provides a preparation method of a low-expansion ceramic baking net, which comprises the steps of firstly, selecting petalite and spodumene for a green body mixture, synthesizing cordierite, Fujian Longyan kaolin and zirconium silicate, and proportioning to form the green body mixture; then adding water, mixing, removing iron, ageing, drying, pressing and bisque firing to form a blank; then mixing petalite, Guizhou kaolin, Pingxiang quartz, talc, zinc oxide and environment-friendly frit to form a blank glaze mixture, and adding water for mixing and removing iron to form a blank glaze; and finally, coating the blank glaze on the trimmed and sized blank, and then performing kiln glaze firing. The preparation method of the low-expansion ceramic baking net disclosed by the invention is simple in process and low in raw material cost; the ceramic baking net prepared by the method is hard in texture and not easy to deform; fine and easy to clean; is durable.
Description
Technical Field
The invention relates to a baking net, in particular to a low-expansion ceramic baking net and a preparation method thereof.
Background
At present, the material of the barbecue wire mesh product used at home and abroad is mainly a mode that metal is added with a coating on the surface, so that the barbecue wire mesh is more environment-friendly and has longer service life. This method involves a certain risk that, once the coating is damaged or impure, the heavy metals may release contaminated food, thus endangering human health. The metal grill pollutes the environment after being discarded, and the recycling cost is high.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: solves the problems of toxicity and environmental pollution of common metal baking nets.
In order to achieve the purpose, the preparation method of the low-expansion ceramic baking net comprises the following steps: comprises a blank body preparation method, a blank glaze preparation method and a glazing method.
The blank preparation method comprises the following steps:
step S100: selecting petalite, spodumene, synthetic cordierite, Fujian Longyan kaolin and zirconium silicate, and proportioning 15-30% of petalite, 20-30% of spodumene, 30-40% of synthetic cordierite, 10-25% of Fujian Longyan kaolin and 8-15% of zirconium silicate to form a green body mixture;
step S110: adding water into the blank mixture, uniformly mixing and ball-milling the mixture into blank slurry;
step S120: aging the blank slurry, removing iron, drying and spraying into ceramic round powder;
step S130: homogenizing the water content of the ceramic round powder and pressing into a blank;
step S140: drying and biscuiting the blank to form a blank for later use;
the preparation method of the blank glaze comprises the following steps:
step S200: selecting 50-70% of petalite, 5-15% of Guizhou kaolin, 5-25% of Pingxiang quartz, 2-10% of talc, 2-10% of zinc oxide and 2-10% of environment-friendly frit for proportioning to form a blank glaze mixture;
step S210: adding water into the blank glaze mixture, uniformly mixing and ball-milling into blank glaze slurry;
step S220: removing iron from the blank glaze slurry to form blank glaze for later use;
wherein, the glazing method comprises the following steps:
step S300: trimming, chamfering and machining the blank;
step S310: applying the blank glaze on the outer surface of the blank body, and finishing again to form a semi-finished product;
step S320: and putting the semi-finished product into a kiln for glaze firing.
Further, the aging time was 2 days.
Further, the ceramic round powder is 20-80 meshes, and the water content is 7-10%.
Further, the blank is dried in a drying kiln at the temperature of 50-150 ℃, and the moisture of the dried blank is below 1%.
Further, the temperature of the blank in the biscuit firing furnace is 900-1100 ℃ during biscuit firing.
Further, the firing temperature of the semi-finished product in a kiln is 1200-1250 ℃.
Further, the blank glaze is applied to the outer surface of the blank body in an electrostatic glaze spraying or glaze dipping mode.
In order to achieve the above object, the present invention also provides a low expansion ceramic grill comprising: the green body comprises 15-30% of petalite, 20-30% of spodumene, 30-40% of synthetic cordierite, 10-25% of Fujian Longyan kaolin and 8-15% of zirconium silicate; the blank glaze comprises 50-70% of petalite, 5-15% of Guizhou kaolin, 5-25% of Pingxiang quartz, 2-10% of talc, 2-10% of zinc oxide and 2-10% of environment-friendly frit.
The preparation method of the low-expansion ceramic baking net disclosed by the invention is simple in process and low in raw material cost; the ceramic baking net prepared by the method is hard in texture and not easy to deform; fine and easy to clean; is durable. The ceramic barbecue net avoids the possibility of harm of heavy metal release to the body, is easy to degrade, and cannot pollute the environment after being discarded, thereby being cleaner and more environment-friendly.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic flow chart of a method for preparing a low-expansion ceramic baking net according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, the method for preparing a low-expansion ceramic baking net according to the present invention includes a method for preparing a green body, a method for preparing a green glaze, and a method for applying a glaze;
the blank preparation method comprises the following steps:
step S100: forming a blank mixture according to the raw material proportion. In the present invention, the green body mixture is preferably mixed with petalite, spodumene, synthetic cordierite, Fujian Longyan Kaolin, zirconium silicate components, and the following table is only a few mixing examples of such mixing.
TABLE 1 composition of different proportions of mixture of green bodies
Step S110: and adding water into the blank mixture, uniformly mixing, and ball-milling into blank slurry. In the step, the blank mixture is proportionally put into a feeding machine to be weighed, is conveyed to a ball mill by a conveyer belt to be mixed, and is ball-milled into slurry by adding water in the ball mill.
Step S120: and (3) ageing the blank slurry, removing iron, drying and spraying into ceramic round powder. The aging time is 2 days. The ageing time is related to the fineness of the slurry, and the finer the fineness of the slurry is, the shorter the ageing time is. The aged mud can ensure that different raw materials in the aged mud are uniformly settled, is beneficial to heat conduction of a finished product and reduces the expansion coefficient.
Step S130: and homogenizing the water content of the ceramic round powder and pressing into a blank. The ceramic round powder is 20 meshes, and the water content is 7%. In the embodiment, the ceramic round powder is not suitable for being too thin, the viscosity is reduced when the ceramic round powder is too thin, the stress is weakened when the ceramic round powder is too thick, and in other embodiments, the size of the ceramic round powder is not less than 20 meshes, but not more than 80 meshes; meanwhile, the water content should not be more than 10%.
Step S140: and drying and bisque firing the blank to form a blank for later use. And drying the blank in a drying kiln at 50 ℃, wherein the moisture of the dried blank is below 1%. The temperature of the blank in the biscuit firing furnace is 900 ℃ during biscuit firing.
In other embodiments, the blank may also be dried at a temperature of no greater than 150 ℃, and the temperature in the bisque-firing furnace should not be greater than 1500 ℃.
The preparation method of the blank glaze comprises the following steps:
step S200: proportioning raw materials to form a blank glaze mixture; in this embodiment, the blank glaze mixture includes: petalite, Guizhou kaolin, Pingxiang quartz, talc, zinc oxide and barium silicate. The following table is a few mixing examples of the raw materials:
TABLE 2 composition table of different proportions of mixture of green bodies
Step S210: adding water to the blank glaze mixture in the table 2, uniformly mixing and ball-milling into blank glaze slurry;
step S220: removing iron from the blank glaze slurry to form blank glaze for later use;
the glazing method comprises the following steps:
step S300: trimming, chamfering and machining the blank;
step S310: applying the blank glaze on the outer surface of the blank body, and finishing again to form a semi-finished product; the blank glaze is applied to the outer surface of the blank body in an electrostatic glaze spraying or glaze dipping mode.
By glazing the surface of the blank, the surface of the ceramic baking net is not easy to stick dirt and is easy to clean.
Step S320: and putting the semi-finished product into a kiln for glaze firing. The kiln glaze firing temperature of the semi-finished product is 1200 ℃, and the temperature is not more than 1250 ℃.
The preparation method of the low-expansion ceramic baking net disclosed by the invention is simple in process and low in raw material cost; the ceramic baking net prepared by the method is hard in texture and not easy to deform; fine and easy to clean; is durable. The ceramic barbecue net avoids the possibility of harm of heavy metal release to the body, is easy to degrade, and cannot pollute the environment after being discarded, thereby being cleaner and more environment-friendly.
The low expansion ceramic grill comprises: the green body comprises 20% of petalite, 20% of spodumene, 30% of synthetic cordierite, 10% of Fujian Longyan kaolin and 20% of zirconium silicate; the blank glaze comprises 65% of petalite, 10% of Guizhou kaolin, 5% of Pingxiang quartz, 10% of talc, 5% of zinc oxide and 5% of environment-friendly frit.
According to the invention, the ceramic barbecue net avoids the possibility of harm to the body caused by heavy metal release, is easy to degrade, and cannot pollute the environment after being discarded, so that the ceramic barbecue net is cleaner and more environment-friendly.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (8)
1. A preparation method of a low-expansion ceramic baking net is characterized by comprising a blank body preparation method, a blank glaze preparation method and a glazing method;
the preparation method of the blank body comprises the following steps:
step S100: 15-30% of petalite, 20-30% of spodumene, 30-40% of synthetic cordierite, 10-25% of Fujian Longyan kaolin and 8-15% of zirconium silicate are selected and matched to form a blank mixture;
step S110: adding water into the blank mixture, uniformly mixing and ball-milling the mixture into blank slurry;
step S120: aging the blank slurry, removing iron, drying and spraying into ceramic round powder;
step S130: homogenizing the water content of the ceramic round powder and pressing into a blank;
step S140: drying and biscuiting the blank to form a blank for later use;
the preparation method of the blank glaze comprises the following steps:
step S200: selecting 50-70% of petalite, 5-15% of Guizhou kaolin, 5-25% of Pingxiang quartz, 2-10% of talc, 2-10% of zinc oxide and 2-10% of environment-friendly frit for proportioning to form a blank glaze mixture;
step S210: adding water into the blank glaze mixture, uniformly mixing and ball-milling into blank glaze slurry;
step S220: removing iron from the blank glaze slurry to form blank glaze for later use;
the glazing method comprises the following steps:
step S300: trimming, chamfering and machining the blank;
step S310: applying the blank glaze on the outer surface of the blank body, and finishing again to form a semi-finished product;
step S320: and putting the semi-finished product into a kiln for glaze firing.
2. The method for preparing a low expansion ceramic grill according to claim 1, wherein the aging time is 2 days.
3. The method for preparing the low-expansion ceramic baking net according to claim 1, wherein the ceramic round powder is 20-80 meshes, and the water content is 7-10%.
4. The method for preparing a low expansion ceramic baking net according to claim 1, wherein the blank is dried in a drying kiln at 50-150 ℃, and the moisture of the dried blank is below 1%.
5. The method for preparing a low expansion ceramic baking net according to claim 1, wherein the temperature of the blank in the bisque baking furnace is 900 ℃ to 1100 ℃ when the blank is bisque baked.
6. The method for preparing a low expansion ceramic baking net according to claim 1, wherein the firing temperature of the semi-finished product into the kiln is 1200 ℃ to 1250 ℃.
7. The method for preparing the low-expansion ceramic baking net according to claim 1, wherein the glaze blank is applied to the outer surface of the blank body by means of electrostatic glaze spraying or glaze dipping.
8. A low expansion ceramic grill manufactured by the method for manufacturing a low expansion ceramic grill according to any one of claims 1 to 7, comprising: the green body comprises 15-30% of petalite, 20-30% of spodumene, 30-40% of synthetic cordierite, 10-25% of Fujian Longyan kaolin and 8-15% of zirconium silicate; the blank glaze comprises 50-70% of petalite, 5-15% of Guizhou kaolin, 5-25% of Pingxiang quartz, 2-10% of talc, 2-10% of zinc oxide and 2-10% of environment-friendly frit.
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| CN201610383774.6A CN107445604B (en) | 2016-06-01 | 2016-06-01 | Low-expansion ceramic baking net and preparation method thereof |
| PCT/CN2016/101785 WO2017206413A1 (en) | 2016-06-01 | 2016-10-11 | Low expansion ceramic barbecue mesh and manufacturing method thereof |
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| CN201610383774.6A CN107445604B (en) | 2016-06-01 | 2016-06-01 | Low-expansion ceramic baking net and preparation method thereof |
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| CN109970440A (en) * | 2017-12-28 | 2019-07-05 | 无锡海天臻陶科技有限公司 | A kind of novel high-strength low expansion ceramic cookware and its manufacturing method |
| CN108218392B (en) * | 2018-01-30 | 2020-12-11 | 福建省德化县福庆陶瓷有限公司 | Low-expansion anti-sticking antibacterial ceramic pot and manufacturing process thereof |
| CN110526675A (en) * | 2018-05-23 | 2019-12-03 | 佛山市顺德区美的电热电器制造有限公司 | Ceramic composition, ceramic material and ceramic pan |
| CN111603058B (en) * | 2019-02-22 | 2023-03-07 | 苏州欧博仕五金制品有限公司 | Baking net manufacturing method and baking net |
| CN110028307B (en) * | 2019-04-26 | 2021-11-12 | 景德镇陶瓷大学 | Lithium heat-resistant porcelain sintered in reducing flame and preparation method thereof |
| CN112408966A (en) * | 2020-11-25 | 2021-02-26 | 江西京尚实业有限公司 | High-performance selenium-rich low-expansion ceramic blank and ceramic manufacturing method |
| CN113416085A (en) * | 2021-07-27 | 2021-09-21 | 福建省德化县心友工贸有限公司 | Pearl white ceramic product and manufacturing method thereof |
| CN113681674B (en) * | 2021-08-20 | 2022-12-02 | 江西帮企陶瓷股份有限公司 | Preparation process of low-expansion heat-resistant ceramic pot and low-expansion heat-resistant ceramic pot |
| CN115286359A (en) * | 2022-07-08 | 2022-11-04 | 周文波 | Preparation process of blue partridge marigold |
| CN115784614B (en) * | 2022-12-09 | 2023-11-24 | 德化县辉杰瓷业有限公司 | Low-expansion ceramic glaze and preparation method thereof |
| CN116813305A (en) * | 2023-05-29 | 2023-09-29 | 蒙娜丽莎集团股份有限公司 | Low-expansion ceramic blank, low-expansion ceramic rock plate and preparation method and application thereof |
| CN116768612B (en) * | 2023-06-20 | 2024-04-16 | 江西拓本科技有限公司 | Multifunctional steaming and boiling marmite and firing method thereof |
| CN116751043A (en) * | 2023-06-30 | 2023-09-15 | 广州市红日燃具有限公司 | Formula and preparation method of portable butane gas stove ceramic fire cover material |
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| CN101508597A (en) * | 2009-01-06 | 2009-08-19 | 湖南大学 | Ceramic veneer glaze of electromagnetic furnace and method of producing the same |
| CN102515730B (en) * | 2011-10-20 | 2014-02-26 | 景德镇陶瓷学院 | Ultra-low-expansion ceramic pot and manufacturing method thereof |
| CN104193412B (en) * | 2014-08-14 | 2015-07-22 | 广东道氏技术股份有限公司 | Low expansion mat glaze and cordierite barbecue plate coated with glaze |
| CN104287643B (en) * | 2014-09-17 | 2016-08-24 | 湖南嘉盛电陶新材料股份有限公司 | A kind of egg McMuffin quick cooker ceramic heat dish and preparation method thereof |
| CN105481474A (en) * | 2015-11-22 | 2016-04-13 | 湖南嘉盛电陶新材料股份有限公司 | Preparation method for glaze applicable to both high-expansion and low-expansion ceramic materials |
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