CN114605139A - High-temperature-resistant non-stick ceramic pot and preparation method thereof - Google Patents
High-temperature-resistant non-stick ceramic pot and preparation method thereof Download PDFInfo
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- CN114605139A CN114605139A CN202210090740.3A CN202210090740A CN114605139A CN 114605139 A CN114605139 A CN 114605139A CN 202210090740 A CN202210090740 A CN 202210090740A CN 114605139 A CN114605139 A CN 114605139A
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- apatite
- kaolin
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- 239000000919 ceramic Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 54
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 47
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 47
- 229910052586 apatite Inorganic materials 0.000 claims abstract description 47
- 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 47
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims abstract description 47
- 235000019738 Limestone Nutrition 0.000 claims abstract description 32
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 claims abstract description 32
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 32
- 239000006028 limestone Substances 0.000 claims abstract description 32
- 239000000049 pigment Substances 0.000 claims abstract description 32
- 239000010453 quartz Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000010456 wollastonite Substances 0.000 claims abstract description 32
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 32
- 239000002689 soil Substances 0.000 claims abstract description 26
- 239000004927 clay Substances 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000000440 bentonite Substances 0.000 claims description 15
- 229910000278 bentonite Inorganic materials 0.000 claims description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 15
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 238000007569 slipcasting Methods 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 229920000297 Rayon Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- 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
-
- 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
- C04B33/00—Clay-wares
- C04B33/24—Manufacture of porcelain or white ware
-
- 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
- C04B33/00—Clay-wares
- C04B33/28—Slip casting
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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
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- 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
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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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
- 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
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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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
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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
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- 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
- C04B2235/6562—Heating rate
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- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention relates to the field of ceramic products, in particular to a high-temperature resistant non-stick ceramic pan and a preparation method thereof, wherein a ground glaze comprises the following components in parts by weight: 55-65 parts of apatite, 10-14 parts of kaolin, 13-16 parts of quartz, 13-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite and 80-84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58-62 parts of apatite, 10-14 parts of kaolin, 13-15 parts of quartz, 14-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite, 80-84 parts of pigment and 1-3 parts of cohesive soil. By adopting a double-layer glazing mode, the fineness of the raw materials of the overglaze is improved to 600 meshes, and clay is added, so that the overglaze has few cracks in a microscopic state, high smoothness of the overglaze and good adhesion resistance; the expansion coefficient of the blank glaze is similar, the adaptability of the blank glaze is good, and the thermal stability is good.
Description
Technical Field
The invention relates to the field of ceramic products, in particular to a high-temperature-resistant non-stick ceramic pot and a preparation method thereof.
Background
The non-stick pan is divided into a metal substrate, a ceramic substrate and the like according to the substrates, the traditional ceramic substrate non-stick pan is finished by applying non-stick paint on a ceramic blank, for example, the invention patent with the application number of CN200810027121.X discloses a production process of a heat-resistant ceramic non-stick container, which specifically comprises the following steps: glazing the part of the trimmed earthen blank which does not need to be sprayed with the non-stick coating, firing the earthen blank which is partially glazed, mechanically sandblasting and coarsening the part of the fired product which needs to be sprayed with the non-stick coating, uniformly spraying the non-stick coating on the part of the product which needs to be sprayed, putting the product which is sprayed with the non-stick coating into a heating furnace for drying, sintering the dried product, directly immersing the product into tap water when the sintered product is taken out of the furnace, so that the non-stick coating is quenched to obtain a finished product, wherein the non-stick coating is 'Teflon', although the process obtains the non-stick performance locally, the non-stick coating is directly applied to the surface of the coarsened blank, the heat resistance of the non-stick coating is poor, and the temperature is usually only 300 ℃ plus 500 ℃. The invention which is not used for solving the problems is provided in the invention with the grant number of CN105731800B, the surface of the blank is glazed to form a non-stick glaze surface, but the non-stick performance of the blank at high temperature is generally greatly reduced, the pan sticking phenomenon is still easy to occur under the high-temperature use, and for the ceramic product with the scale mark on the inner surface, the traditional embossment forming method is easy to damage the embossment on the inner surface of the blank and the yield is low because the plaster mold is made of hard material in the demolding process.
Disclosure of Invention
An object of the present invention is to solve at least the above problems by a high temperature resistant non-stick ceramic pan and a method for making the same.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: high temperature resistant on-stick ceramic pot which characterized in that: the glaze-free surface glaze comprises a blank body, wherein the blank body is provided with a ground glaze layer and a surface glaze layer, and the blank body comprises the following components in parts by weight: 34-36 parts of apatite, 28-32 parts of kaolin, 2-4 parts of bentonite, 14-16 parts of cohesive soil and 14-16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55-65 parts of apatite, 10-14 parts of kaolin, 13-16 parts of quartz, 13-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite and 80-84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58-62 parts of apatite, 10-14 parts of kaolin, 13-15 parts of quartz, 14-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite, 80-84 parts of pigment and 1-3 parts of cohesive soil.
Preferably, the blank comprises the following raw materials in parts by weight: 36 parts of apatite, 32 parts of kaolin, 4 parts of bentonite, 16 parts of cohesive soil and 16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 65 parts of apatite, 14 parts of kaolin, 16 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite and 84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 62 parts of apatite, 14 parts of kaolin, 15 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite, 84 parts of pigment and 3 parts of cohesive soil
Preferably, the blank comprises the following raw materials in parts by weight: 34 parts of apatite, 28 parts of kaolin, 2 parts of bentonite, 14 parts of cohesive soil and 14 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 13 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite and 80 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 14 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite, 80 parts of pigment and 1 part of cohesive soil
Preferably, the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of clay.
The preparation method of the high-temperature-resistant non-stick ceramic pot is characterized by comprising the following steps of:
step a: preparing a blank according to a proportion, wherein the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite, and drying and molding a blank;
step b: preparing a ground glaze and a cover glaze according to a proportion, wherein the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of cohesive soil;
c, applying a base coat on the surface of the blank;
d, applying a cover glaze on the base glaze;
and e, firing the glazed green body in a kiln.
Preferably, in step a, the internal surface of body is equipped with interior concave sculpture line, the body passes through slip casting mould slip casting, the slip casting mould includes inner membrance, external mold, the material of inner membrance external mold is the gypsum, inner membrance and external mold are merging the back, form the space of slip casting between the two, the soft resin piece of surface embedding of inner membrance, the one side that soft resin piece and the surface of inner membrance link up is equipped with soft burr, divides the in-process of membrane, because the soft burr of convex membrane has elasticity, can break away from in the interior concave sculpture line of body to do not cause the damage to interior concave sculpture line.
Preferably, in the step a, the inner film is made by a copy mold, a through opening for accommodating the soft convex pattern is arranged on a side wall of the copy mold, in the process of copying the inner film, the edge of the soft resin block is adhered to the inner surface of the copy mold through viscose glue, the soft convex pattern of the soft resin block is embedded into the through opening of the copy mold, a release agent is coated on the inner surface of the copy mold, gypsum slurry is injected into the copy mold, the copy mold is kept still and dried for 5 to 6 hours, then the soft resin block is dried continuously for 2 to 3 hours in a drying chamber at 70 to 80 ℃, then a blade is inserted between the through opening and the soft resin block and slides along the edge to separate the viscose glue, and then the inner film is taken out of the copy mold.
Preferably, in the step a, the raw material of the overglaze is ground to 600 meshes, and the overglaze is applied by means of glaze spraying.
Preferably, in the step d, the firing process is as follows: heating to 950 ℃ within 3 hours, heating to 1250 ℃ within 6 hours, heating to 1310 ℃ within 4 hours, and firing for forming.
Preferably, the raw materials of the blank further comprise 12-15 parts by weight of silicon carbide powder.
From the above description, the high-temperature resistant non-stick ceramic pan and the preparation method thereof provided by the invention have the following beneficial effects: by adopting a double-layer glazing mode, the fineness of the raw materials of the overglaze is improved to 600 meshes, and clay is added, so that the overglaze has few cracks in a microscopic state, high smoothness of the overglaze and good adhesion resistance; the expansion coefficient of the blank glaze is similar, the adaptability of the blank glaze is good, and the thermal stability is good; the blank with the concave sculpture is prepared through the flexible inner film, and the soft convex patterns of the convex film have elasticity, so that the blank can be separated from the concave sculpture of the blank, and the concave sculpture is not damaged.
Detailed Description
The invention is further described below by means of specific embodiments.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The high-temperature-resistant non-stick ceramic pot comprises a blank body, wherein the blank body is provided with a bottom glaze layer and a surface glaze layer, and the blank body comprises the following raw materials in parts by weight: 34-36 parts of apatite, 28-32 parts of kaolin, 2-4 parts of bentonite, 14-16 parts of cohesive soil and 14-16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55-65 parts of apatite, 10-14 parts of kaolin, 13-16 parts of quartz, 13-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite and 80-84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58-62 parts of apatite, 10-14 parts of kaolin, 13-15 parts of quartz, 14-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite, 80-84 parts of pigment and 1-3 parts of cohesive soil.
The first embodiment is as follows:
the blank comprises the following raw materials in parts by weight: 36 parts of apatite, 32 parts of kaolin, 4 parts of bentonite, 16 parts of cohesive soil and 16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 65 parts of apatite, 14 parts of kaolin, 16 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite and 84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 62 parts of apatite, 14 parts of kaolin, 15 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite, 84 parts of pigment and 3 parts of cohesive soil
The second embodiment is as follows:
the blank comprises the following raw materials in parts by weight: 34 parts of apatite, 28 parts of kaolin, 2 parts of bentonite, 14 parts of cohesive soil and 14 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 13 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite and 80 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 14 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite, 80 parts of pigment and 1 part of cohesive soil
The third concrete embodiment:
the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of clay.
The preparation method of the high-temperature resistant non-stick ceramic pot comprises the following steps:
step a: preparing a blank according to a proportion, wherein the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite, and drying and molding a blank;
step b: preparing a ground glaze and a cover glaze according to a proportion, wherein the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of cohesive soil;
c, applying a base coat on the surface of the blank;
d, applying a cover glaze on the base glaze;
and e, firing the glazed green body in a kiln.
In step a, the internal surface of body is equipped with interior concave carving line, the body passes through slip casting mould slip casting, the slip casting mould includes inner membrance, external mold, the material of inner membrance external mold is the gypsum, inner membrance and external mold are merging the back, form the space of slip casting between the two, the soft resin piece of inner membrance surface embedding, the one side of soft resin piece and the surface linking of inner membrance is equipped with soft burr, divides the in-process of membrane, because the soft burr of convex film has elasticity, can break away from in the interior concave carving line of body to do not cause the damage to interior concave carving line. The inner concave carving pattern can be scales, marks and the like.
In the step a, the inner membrane is manufactured by a reproduction mould, a through opening for accommodating the soft convex patterns is arranged on the side wall of the reproduction mould, in the process of reproducing the inner membrane, the edge of the soft resin block is adhered to the inner surface of the reproduction mould through viscose glue, the soft convex patterns of the soft resin block are embedded into the through opening of the reproduction mould, coating a release agent on the inner surface of the copy mould, injecting gypsum slurry into the copy mould, standing and drying for 5-6 hours, then the mixture is put into a drying chamber to be dried for 2 to 3 hours at the temperature of between 70 and 80 ℃, then a blade is inserted between the through opening and the soft resin block and slides along the edge, the inner film is taken out of the turning mold after the viscose is separated, so that the inner film with the soft resin block is obtained, and a plurality of bulges are further arranged on the side wall of the soft resin block and used for improving the connection degree with the inner film. The soft resin block is made of soft and hard resin materials, the heat deformation temperature is higher than 95 ℃, the shrinkage rate is 0.5/10000, and the hardness is 75D.
In the step a, the raw material of the ground glaze is ground to 300 meshes, the raw material of the surface glaze is ground to 600 meshes, and the surface glaze is glazed in a glaze spraying mode, so that the fineness of the surface glaze is improved, the flatness of the glaze surface can be improved, and cracks after firing are reduced.
In the step d, the firing process comprises the following steps: heating to 950 ℃ within 3 hours, heating to 1250 ℃ within 6 hours, heating to 1310 ℃ within 4 hours, and firing for forming.
By adopting a double-layer glazing mode, the fineness of the raw materials of the overglaze is improved to 600 meshes, and clay is added, so that the overglaze has few cracks in a microscopic state, high smoothness of the overglaze and good adhesion resistance; the expansion coefficient of the blank glaze is similar, the adaptability of the blank glaze is good, and the thermal stability is good; the blank with the concave sculpture is prepared through the flexible inner film, and the soft convex patterns of the convex film have elasticity, so that the blank can be separated from the concave sculpture of the blank, and the concave sculpture is not damaged.
The blank comprises 12-15 parts of silicon carbide powder by weight of raw materials. The silicon carbide is used as clinker, so that the heat conduction efficiency of the green body can be obviously improved, the thermal stability of the ceramic pot is further improved, the cracking of the green body is reduced, and the service life of the ceramic product is prolonged.
The above description is only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of the present invention.
Claims (10)
1. High temperature resistant on-stick ceramic pot which characterized in that: the glaze-free surface glaze comprises a blank body, wherein the blank body is provided with a ground glaze layer and a surface glaze layer, and the blank body comprises the following components in parts by weight: 34-36 parts of apatite, 28-32 parts of kaolin, 2-4 parts of bentonite, 14-16 parts of cohesive soil and 14-16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55-65 parts of apatite, 10-14 parts of kaolin, 13-16 parts of quartz, 13-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite and 80-84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58-62 parts of apatite, 10-14 parts of kaolin, 13-15 parts of quartz, 14-16 parts of limestone, 1-3 parts of barium carbonate, 30-34 parts of bone, 50-54 parts of wollastonite, 80-84 parts of pigment and 1-3 parts of cohesive soil.
2. The high temperature resistant non-stick ceramic pan of claim 1, wherein: the blank comprises the following raw materials in parts by weight: 36 parts of apatite, 32 parts of kaolin, 4 parts of bentonite, 16 parts of cohesive soil and 16 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 65 parts of apatite, 14 parts of kaolin, 16 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite and 84 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 62 parts of apatite, 14 parts of kaolin, 15 parts of quartz, 16 parts of limestone, 3 parts of barium carbonate, 34 parts of bone, 54 parts of wollastonite, 84 parts of pigment and 3 parts of clay.
3. The high temperature resistant non-stick ceramic pan of claim 1, wherein: the blank comprises the following raw materials in parts by weight: 34 parts of apatite, 28 parts of kaolin, 2 parts of bentonite, 14 parts of cohesive soil and 14 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 55 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 13 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite and 80 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 58 parts of apatite, 10 parts of kaolin, 13 parts of quartz, 14 parts of limestone, 1 part of barium carbonate, 30 parts of bone, 50 parts of wollastonite, 80 parts of pigment and 1 part of clay.
4. The high temperature resistant non-stick ceramic pan and the method of making the same according to claims 1 to 3, wherein: the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite; the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of clay.
5. The method for preparing the high-temperature resistant non-stick ceramic pan according to claim 4, which comprises the following steps:
step a: preparing a blank according to a proportion, wherein the blank comprises the following raw materials in parts by weight: 35 parts of apatite, 30 parts of kaolin, 3 parts of bentonite, 15 parts of cohesive soil and 15 parts of pyrophyllite, and drying and molding a blank;
step b: preparing a ground glaze and a cover glaze according to a proportion, wherein the ground glaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bones, 52 parts of wollastonite and 82 parts of pigment; the overglaze comprises the following raw materials in parts by weight: 60 parts of apatite, 12 parts of kaolin, 15 parts of quartz, 15 parts of limestone, 2 parts of barium carbonate, 32 parts of bone, 52 parts of wollastonite, 82 parts of pigment and 2 parts of cohesive soil;
c, applying a base coat on the surface of the blank;
d, applying a cover glaze on the base glaze;
and e, firing the glazed green body in a kiln.
6. The high temperature resistant non-stick ceramic pan and the preparation method thereof according to claim 4, characterized in that: in step a, the internal surface of body is equipped with interior concave carving line, the body passes through slip casting mould slip casting, the slip casting mould includes inner membrance, external mold, the material of inner membrance external mold is the gypsum, inner membrance and external mold are merging the back, form the space of slip casting between the two, the soft resin piece of surface embedding of inner membrance, the one side that soft resin piece and the surface of inner membrance link up is equipped with soft burr, divides the in-process of membrane, because the soft burr of convex membrane has elasticity, can break away from in the interior concave carving line of body to do not lead to the fact the damage to interior concave carving line.
7. The high temperature resistant non-stick ceramic pan and the preparation method thereof according to claim 4, characterized in that: in the step a, the inner film is made through a copying mold, a through opening for accommodating the soft convex patterns is formed in the side wall of the copying mold, in the process of copying the inner film, the edge of the soft resin block is adhered to the inner surface of the copying mold through viscose, the soft convex patterns of the soft resin block are embedded into the through opening of the copying mold, a release agent is coated on the inner surface of the copying mold, gypsum slurry is injected into the copying mold, the gypsum slurry is kept still and dried for 5-6 hours, then the gypsum slurry is put into a drying chamber to be continuously dried for 2-3 hours at 70-80 ℃, then a blade is used for inserting the soft resin block from the through opening and sliding along the edge to separate the viscose, and then the inner film is taken out of the copying mold.
8. The high temperature resistant non-stick ceramic pan and the preparation method thereof according to claim 4, characterized in that: in the step a, raw materials of the overglaze are ground to 600 meshes, and the overglaze is glazed in a glaze spraying mode.
9. The high temperature resistant non-stick ceramic pan and the preparation method thereof according to claim 4, characterized in that: in the step d, the firing process comprises the following steps: heating to 950 ℃ within 3 hours, heating to 1250 ℃ within 6 hours, heating to 1310 ℃ within 4 hours, and firing for forming.
10. The high temperature resistant non-stick ceramic pan and the preparation method thereof according to claim 1, characterized in that: the blank comprises 12-15 parts of silicon carbide powder by weight of raw materials.
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