CN112759360A - Obsidian cup and preparation process thereof - Google Patents
Obsidian cup and preparation process thereof Download PDFInfo
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- CN112759360A CN112759360A CN202011628483.1A CN202011628483A CN112759360A CN 112759360 A CN112759360 A CN 112759360A CN 202011628483 A CN202011628483 A CN 202011628483A CN 112759360 A CN112759360 A CN 112759360A
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- 239000005332 obsidian Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000010304 firing Methods 0.000 claims abstract description 9
- 235000015895 biscuits Nutrition 0.000 claims abstract description 8
- 238000009966 trimming Methods 0.000 claims abstract description 8
- 241000196324 Embryophyta Species 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 238000007873 sieving Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 12
- 235000011613 Pinus brutia Nutrition 0.000 claims description 12
- 241000018646 Pinus brutia Species 0.000 claims description 12
- 235000018185 Betula X alpestris Nutrition 0.000 claims description 11
- 235000018212 Betula X uliginosa Nutrition 0.000 claims description 11
- 244000302661 Phyllostachys pubescens Species 0.000 claims description 11
- 235000003570 Phyllostachys pubescens Nutrition 0.000 claims description 11
- 230000032683 aging Effects 0.000 claims description 10
- 239000005995 Aluminium silicate Substances 0.000 claims description 9
- 235000012211 aluminium silicate Nutrition 0.000 claims description 9
- 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 description 9
- 229910001710 laterite Inorganic materials 0.000 claims description 9
- 239000011504 laterite Substances 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 7
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 239000006028 limestone Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 244000269722 Thea sinensis Species 0.000 claims 1
- 238000004017 vitrification Methods 0.000 abstract description 7
- 238000005286 illumination Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 21
- 239000002956 ash Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 230000009467 reduction Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 125000001475 halogen functional group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000005881 Calendula officinalis Nutrition 0.000 description 2
- 240000000785 Tagetes erecta Species 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 241001164374 Calyx Species 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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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
-
- 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
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
-
- 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
- C04B41/50—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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- 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
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
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- 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
- C04B2235/6562—Heating rate
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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
- C04B2235/6565—Cooling rate
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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
- C04B2235/6567—Treatment time
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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
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
Abstract
The invention relates to a obsidian cup and a preparation process thereof. Specifically, the invention provides a preparation process of a seven-color obsidian cup, which comprises the following steps: after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing and cooling are carried out, and a blank is obtained; applying the glaze slip to the blank body to obtain a glazed blank body; and (3) putting the glazed green body into an electric kiln for roasting to obtain the obsidian cup. The colorful obsidian building cup prepared by the process has the advantages of excellent vitrification degree, moist glaze, no air hole, smoothness, dazzling color, changeable and bright color, colorful aureole under illumination, and the glaze on the inner wall of the building cup has circular or quasi-circular oil drops and millifilaments which are gathered into a community, the oil drops are moist, and the colorful obsidian building cup has the advantages of bright color, clear millifilaments, dense and dense color and three-dimensional sense, thereby having beautiful appearance, collection and economic value.
Description
Technical Field
The invention relates to the technical field of porcelain, in particular to a seven-color obsidian cup and a preparation process thereof.
Background
The cup is a culture essence, combines practicability and artistry, has unique beauty compared with other chinaware, and has high collection and artistic values.
However, the firing difficulty of the built calendars is high, the improper selection of the formula and the process steps easily causes great adverse effects on the final products of the built calendars, for example, the prepared built calendars have the defects of deformation, cracking and the like, how to fire the built calendars with beautiful appearance, and the improvement of the artistic and collection values of the built calendars become research hotspots and difficulties in the porcelain world.
Therefore, there is a need in the art to develop a process for making attractive looking calendars that improves the artistic, collectable, and economic value of calendars.
Disclosure of Invention
The invention aims to provide a process for preparing a beautiful obsidian cup.
The invention provides a preparation process of a seven-color obsidian cup, which comprises the following steps:
(1) mixing and crushing 2-4 parts by weight of laterite and 5-7 parts by weight of kaolin, adding water for elutriation, sieving with a 80-120-mesh sieve, and performing filter pressing, mud refining and ageing to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 5.5-6.5h at the temperature of 830-870 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 9-11 parts of moso bamboo, 5-7 parts of pine and 2-4 parts of birch by weight, burning, and collecting ash to obtain plant ash;
putting 9-11 parts by weight of glaze ore, 2-4 parts by weight of potassium feldspar, 5-7 parts by weight of limestone, 1-3 parts by weight of plant ash and 14-16 parts by weight of water into a ball mill for grinding, sieving by a 80-120 mesh sieve, and ageing for 3.5-4.5 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.45-0.55 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1310-;
(3-2) closing the furnace door, cooling the temperature of the electric kiln from 1310-;
(3-3) stopping the furnace after power failure, naturally cooling to 280-320 ℃, opening the furnace door to a fully-opened state, cooling to 180-220 ℃, discharging, and cooling to normal temperature to obtain the obsidian cup.
Preferably, the process comprises the steps of:
(1) mixing and crushing 3 parts by weight of laterite and 6 parts by weight of kaolin, adding water for elutriation, sieving by a 100-mesh sieve, and performing filter pressing, mud refining and staleness to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 6 hours at 850 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 10 parts by weight of moso bamboo, 6 parts by weight of pine and 3 parts by weight of birch, burning, and collecting ash to obtain plant ash;
putting 10 parts by weight of glaze ore, 3 parts by weight of potassium feldspar, 6 parts by weight of limestone, 2 parts by weight of plant ash and 15 parts by weight of water into a ball mill for grinding, sieving by a 100-mesh sieve, and ageing for 4 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.5 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1320 ℃ at the speed of 150 ℃/h, then throwing the firewood into the electric kiln, throwing the firewood once every 10min for 3 times, throwing the firewood according to the amount of 1550g in each cubic meter of electric kiln space, opening the furnace door after the firewood is thrown, and continuing to keep the temperature at 1320 ℃ for 15 min;
(3-2) closing the furnace door, cooling the electric kiln from 1320 ℃ to 1150 ℃ at the speed of 120 ℃/h, adding the firewood into the electric kiln, adding the firewood once every 5min for 2 times, adding 1200g of the firewood into each cubic meter of space of the electric kiln each time, and keeping the temperature at 1150 ℃ for 10min after the firewood is completely added;
(3-3) cutting off the power and stopping the furnace, cooling to 300 ℃, opening the furnace door to a full-open state, cooling the furnace temperature to 200 ℃, discharging, and cooling to normal temperature to obtain the seven-color obsidian cup.
Preferably, in the step (3-1), the oven door is fully opened when the oven door is opened.
Preferably, the moso bamboo is sun-dried moso bamboo.
Preferably, the pine is sun-dried pine.
Preferably, the birch is sun-dried birch.
Preferably, in the step (2), the outer bottom of the blank body is not glazed.
Preferably, the normal temperature is 18-22 ℃, preferably 20 ℃.
Preferably, in the step (3-3), the temperature reduction is natural temperature reduction.
Preferably, the obsidian has the structure shown in figures 1-3 of the specification.
In a second aspect, the present invention provides a heptads obsidian prepared by the method of the first aspect of the present invention.
In another preferred embodiment, the obsidian is as shown in figures 1-3 of the specification.
Within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features described in detail below (e.g., the embodiments) can be combined with each other to constitute a new or preferred technical solution.
Drawings
FIG. 1 is a schematic view of obsidian prepared in example 1 of the present invention.
FIG. 2 is a schematic view of obsidian prepared in example 1 of the present invention.
FIG. 3 is a obsidian cup prepared in example 1 of the present invention.
Detailed Description
The invention develops a preparation process of a colorful obsidian cup, the vitrification degree of the colorful obsidian cup prepared by the process is very excellent, the glaze surface is moist, pore-free, smooth, glaring in color, iridescent and bright, the colorful obsidian cup is changed under illumination, glaring is extremely bright, colorful aureole is formed, and the colorful aureole changes along with light rays, round or quasi-round oil drops and millifilaments which are gathered into a community are arranged on the glaze surface on the inner wall of the cup, the oil drops are moist, and the colorful aureole has luster, clear millifilaments, dense and compact appearance, rich color and stereoscopic impression, thereby having beautiful appearance, collection and economic value.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Obsidian cup and its preparing process
The invention provides a obsidian, preferably as shown in figures 1-3.
In a preferred embodiment of the present invention, the obsidian of the present invention is prepared by the following process:
(1) mixing and crushing 2-4 parts by weight of laterite and 5-7 parts by weight of kaolin, adding water for elutriation, sieving with a 80-120-mesh sieve, and performing filter pressing, mud refining and ageing to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 5.5-6.5h at the temperature of 830-870 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 9-11 parts of moso bamboo, 5-7 parts of pine and 2-4 parts of birch by weight, burning, and collecting ash to obtain plant ash;
putting 9-11 parts by weight of glaze ore, 2-4 parts by weight of potassium feldspar, 5-7 parts by weight of limestone, 1-3 parts by weight of plant ash and 14-16 parts by weight of water into a ball mill for grinding, sieving by a 80-120 mesh sieve, and ageing for 3.5-4.5 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.45-0.55 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1310-;
(3-2) closing the furnace door, cooling the temperature of the electric kiln from 1310-;
(3-3) stopping the furnace after power failure, naturally cooling to 280-320 ℃, opening the furnace door to a fully-opened state, cooling to 180-220 ℃, discharging, and cooling to normal temperature to obtain the obsidian cup.
As used herein, the terms "comprising," "including," and "containing" are used interchangeably and include not only open-ended definitions, but also semi-closed and closed-ended definitions. In other words, the term includes "consisting of … …", "consisting essentially of … …".
In this context, laterite, kaolin and glaze ores originate from the Jianyang district of Nanping, Fujian province.
In the invention, the firewood is pine root rich in rosin and can be vigorously combusted.
In a preferred embodiment of the invention, the moso bamboo is sun-dried moso bamboo.
In a preferred embodiment of the present invention, the pine is sun-dried pine.
In a preferred embodiment of the invention, the birch is dried birch.
In a preferred embodiment of the present invention, in the step (2), the outer bottom of the blank is not glazed.
In a preferred embodiment of the invention, the normal temperature is 18-22 ℃, preferably 20 ℃.
In a preferred embodiment of the present invention, in the step (3-3), the temperature reduction is natural temperature reduction.
Typically, the preparation process of the obsidian marigold comprises the following steps:
(1) mixing and crushing 3 parts by weight of laterite and 6 parts by weight of kaolin, adding water for elutriation, sieving by a 100-mesh sieve, and performing filter pressing, mud refining and staleness to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 6 hours at 850 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 10 parts by weight of moso bamboo, 6 parts by weight of pine and 3 parts by weight of birch, burning, and collecting ash to obtain plant ash;
putting 10 parts by weight of glaze ore, 3 parts by weight of potassium feldspar, 6 parts by weight of limestone, 2 parts by weight of plant ash and 15 parts by weight of water into a ball mill for grinding, sieving by a 100-mesh sieve, and ageing for 4 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.5 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1320 ℃ at the speed of 150 ℃/h, then throwing the firewood into the electric kiln, throwing the firewood once every 10min for 3 times, throwing the firewood according to the amount of 1550g in each cubic meter of electric kiln space, opening a furnace door (the furnace door is preferably in a fully-opened state) after the firewood is thrown, and continuously preserving the heat at 1320 ℃ for 15 min;
(3-2) closing the furnace door, cooling the electric kiln from 1320 ℃ to 1150 ℃ at the speed of 120 ℃/h, adding the firewood into the electric kiln, adding the firewood once every 5min for 2 times, adding 1200g of the firewood into each cubic meter of space of the electric kiln each time, and keeping the temperature at 1150 ℃ for 10min after the firewood is completely added;
(3-3) cutting off the power and stopping the furnace, cooling to 300 ℃, opening the furnace door to a full-open state, cooling the furnace temperature to 200 ℃, discharging, and cooling to normal temperature to obtain the seven-color obsidian cup.
More specifically, the process for preparing obsidian marigold according to the present invention was prepared as described in embodiment 1 of the present invention.
The main technical advantages and effects of the invention include:
1. the colorful obsidian building cup prepared by the process has the advantages of excellent vitrification degree, moist glaze, no air hole, smoothness, dazzling color, changeable and bright color, colorful aureole under illumination, and the glaze on the inner wall of the building cup has circular or quasi-circular oil drops and millifilaments which are gathered into a community, the oil drops are moist, and the colorful obsidian building cup has the advantages of bright color, clear millifilaments, dense and dense color and three-dimensional sense, thereby having beautiful appearance, collection and economic value.
The invention will be further illustrated with reference to the following specific examples. It should be understood that the following specific examples are provided to illustrate the detailed embodiments and specific procedures, but the scope of the present invention is not limited to these examples.
Example 1
This example 1 provides a process for preparing obsidian cup, comprising the steps of:
(1) mixing and crushing 3 parts by weight of laterite and 6 parts by weight of kaolin, adding water for elutriation, sieving by a 100-mesh sieve, and performing filter pressing, mud refining and staleness to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 6 hours at 850 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 10 parts by weight of sun-dried moso bamboo, 6 parts by weight of sun-dried pine and 3 parts by weight of sun-dried birch, burning, and collecting ashes to obtain plant ash;
putting 10 parts by weight of glaze ore, 3 parts by weight of potassium feldspar, 6 parts by weight of limestone, 2 parts by weight of plant ash and 15 parts by weight of water into a ball mill for grinding, sieving by a 100-mesh sieve, and ageing for 4 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain a glazed blank body, wherein the glazing thickness is 0.5mm, and the outer bottom of the blank body is not glazed;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature (20 ℃) to 1320 ℃ at the speed of 150 ℃/h, then throwing the firewood into the electric kiln, throwing the firewood once every 10min for 3 times, throwing the firewood according to the amount of 1550g in each cubic meter of electric kiln space, opening the furnace door (the furnace door is in a fully-opened state) after the firewood is thrown, and continuing to keep the temperature at 1320 ℃ for 15 min;
(3-2) closing the furnace door, cooling the electric kiln from 1320 ℃ to 1150 ℃ at the speed of 120 ℃/h, adding the firewood into the electric kiln, adding the firewood once every 5min for 2 times, adding 1200g of the firewood into each cubic meter of space of the electric kiln each time, and keeping the temperature at 1150 ℃ for 10min after the firewood is completely added;
(3-3) cutting off the power and stopping the furnace, naturally cooling to 300 ℃, opening the furnace door to a fully-opened state, cooling the furnace temperature to 200 ℃ and discharging, and cooling to normal temperature (20 ℃) to obtain the obsidian calyx.
The laterite and kaolin are both from the Shuijing town of Jianyang district of Nanping City of Fujian province, and the glaze ore is from the Nanlincun of Jianyang district of Nanping City of Fujian province.
Evaluation of obsidian
The seven-color obsidian prepared in example 1 is shown in fig. 1, fig. 2 and fig. 3, and it can be seen from fig. 1-3 that the vitrification degree of the seven-color obsidian is very excellent, the glaze is moist, pore-free, smooth, colorful, glaring and bright, the seven-color obsidian is changed under illumination, glaring and colorful halo, and has halo varying with light, round or quasi-round oil drops and millifilaments gathered into a colony are provided on the glaze on the inner wall of the obsidian, the oil drops are moist, and have halo, the millifilaments are clear, dense, rich in color and have stereoscopic impression, thereby having beautiful appearance, collection and economic value.
The cup is very sensitive to the preparation process parameters, and the small range change of the process parameters can also cause great adverse effects on the characteristics of the cup finished product, such as appearance, and the like, and the specific steps are as follows:
comparative example 1
Comparative example 1 is similar to the preparation process of example 1, with the following differences: in the step (2), the glazing thickness is 0.3 mm.
As a result:
the cup prepared in comparative example 1 has a dark color, a poor vitrification effect, and pores.
Comparative example 2
Comparative example 2 is similar to the preparation process of example 1, with the following differences: in the step (3-1), the diesel fuel is added according to the amount of 800g per cubic meter of kiln space each time.
As a result:
the cup prepared in the comparative example 2 has dark color, poor vitrification effect and insufficient color.
Comparative example 3
Comparative example 3 is similar to the preparation process of example 1, with the following differences: in the step (3-2), the amount of the diesel fuel is 1800g per cubic meter of the kiln space.
As a result:
the cup prepared by the comparative example 3 has dark color, and the glaze on the inner wall of the cup has no colorful oil drops, so the whole effect is poor.
Comparative example 4
Comparative example 4 is similar to the preparation process of example 1, with the following differences: in the step (3-1), the furnace temperature is raised to 1240 ℃ from normal temperature (20 ℃) at the speed of 150 ℃/h, then the firewood is thrown into the electric kiln once every 10min for 3 times, 1550g firewood is thrown into each cubic meter of electric kiln space each time, after the firewood is thrown, the furnace door is opened (the furnace door is in a fully-opened state), and the temperature is kept at 1240 ℃ for 15 min;
as a result:
the cup-building prepared in this comparative example 4 did not undergo a heptachromatic obsidian change.
Comparative example 5
Comparative example 5 is similar to the preparation process of example 1, with the following differences: in the step (3-1), the furnace temperature is raised to 1360 ℃ from normal temperature (20 ℃) at the speed of 150 ℃/h, then firewood is thrown into the electric kiln once every 10min for 3 times, 1550g firewood is thrown into each cubic meter of electric kiln space each time, after the firewood is thrown, the furnace door is opened (the furnace door is in a fully-opened state), and the temperature is kept for 15min at 1360 ℃;
as a result:
the cup prepared in the comparative example 5 has dark color, poor vitrification effect and poor overall effect.
Comparative example 6
Comparative example 6 is similar to the preparation process of example 1, with the following differences: in the step (3-1), the furnace temperature is raised to 1320 ℃ from normal temperature (20 ℃) at the speed of 150 ℃/h, then the firewood is thrown into the electric kiln once every 10min for 3 times, the firewood is thrown according to the amount of 1550g per cubic meter of space of the electric kiln each time, and after the firewood is thrown, the furnace door is kept in a closed state and the temperature is kept for 15min at 1320 ℃;
as a result:
the cup-building prepared in this comparative example 6 did not undergo a heptachromatic obsidian change.
Comparative example 7
Comparative example 7 is similar to the preparation process of example 1, with the following differences: in the step (3-2), closing the furnace door, cooling the electric kiln from 1320 ℃ to 1180 ℃ at the speed of 120 ℃/h, adding the firewood into the electric kiln, adding the firewood once every 5min for 2 times, adding 1200g of the firewood into each cubic meter of space of the electric kiln each time, and keeping the temperature at 1180 ℃ for 10min after the firewood is completely added;
as a result:
the cup prepared in comparative example 7 is dark in color, has bubbles, and is poor in overall effect.
While the invention has been described in terms of a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.
Claims (5)
1. The preparation process of the obsidian calyx-shaped tea is characterized by comprising the following steps:
(1) mixing and crushing 2-4 parts by weight of laterite and 5-7 parts by weight of kaolin, adding water for elutriation, sieving with a 80-120-mesh sieve, and performing filter pressing, mud refining and ageing to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 5.5-6.5h at the temperature of 830-870 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 9-11 parts of moso bamboo, 5-7 parts of pine and 2-4 parts of birch by weight, burning, and collecting ash to obtain plant ash;
putting 9-11 parts by weight of glaze ore, 2-4 parts by weight of potassium feldspar, 5-7 parts by weight of limestone, 1-3 parts by weight of plant ash and 14-16 parts by weight of water into a ball mill for grinding, sieving by a 80-120 mesh sieve, and ageing for 3.5-4.5 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.45-0.55 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1310-;
(3-2) closing the furnace door, cooling the temperature of the electric kiln from 1310-;
(3-3) stopping the furnace after power failure, naturally cooling to 280-320 ℃, opening the furnace door to a fully-opened state, cooling to 180-220 ℃, discharging, and cooling to normal temperature to obtain the obsidian cup.
2. The process according to claim 1, characterized in that it comprises the following steps:
(1) mixing and crushing 3 parts by weight of laterite and 6 parts by weight of kaolin, adding water for elutriation, sieving by a 100-mesh sieve, and performing filter pressing, mud refining and staleness to obtain a blank raw material; after the blank raw material is subjected to blank drawing and blank trimming, biscuit firing is carried out for 6 hours at 850 ℃, and the blank is cooled and taken out to obtain a blank;
(2) mixing 10 parts by weight of moso bamboo, 6 parts by weight of pine and 3 parts by weight of birch, burning, and collecting ash to obtain plant ash;
putting 10 parts by weight of glaze ore, 3 parts by weight of potassium feldspar, 6 parts by weight of limestone, 2 parts by weight of plant ash and 15 parts by weight of water into a ball mill for grinding, sieving by a 100-mesh sieve, and ageing for 4 days to obtain glaze slurry;
applying the glaze slip to the blank body, and airing to obtain the glazed blank body, wherein the glazing thickness is 0.5 mm;
(3) placing the glazed green body into an electric kiln for roasting, wherein the roasting comprises the following steps:
(3-1) raising the temperature of the furnace from normal temperature to 1320 ℃ at the speed of 150 ℃/h, then throwing the firewood into the electric kiln, throwing the firewood once every 10min for 3 times, throwing the firewood according to the amount of 1550g in each cubic meter of electric kiln space, opening the furnace door after the firewood is thrown, and continuing to keep the temperature at 1320 ℃ for 15 min;
(3-2) closing the furnace door, cooling the electric kiln from 1320 ℃ to 1150 ℃ at the speed of 120 ℃/h, adding the firewood into the electric kiln, adding the firewood once every 5min for 2 times, adding 1200g of the firewood into each cubic meter of space of the electric kiln each time, and keeping the temperature at 1150 ℃ for 10min after the firewood is completely added;
(3-3) cutting off the power and stopping the furnace, cooling to 300 ℃, opening the furnace door to a full-open state, cooling the furnace temperature to 200 ℃, discharging, and cooling to normal temperature to obtain the seven-color obsidian cup.
3. The process of claim 1, wherein in the step (3-1), the door is opened in a fully opened state.
4. The process of claim 1, wherein the obsidian is as shown in figures 1-3 of the specification.
5. An obsidian cup prepared by the method of claim 1.
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| CN113185263A (en) * | 2021-06-22 | 2021-07-30 | 杨兴生 | Golden silk color hair cup |
| CN113264754A (en) * | 2021-06-21 | 2021-08-17 | 凌超 | Copper coin drip cup |
| CN113321488A (en) * | 2021-06-28 | 2021-08-31 | 南平市建阳区水吉后井成义建盏文化推广有限公司 | Purple gold and silver hair built cup |
| CN113372093A (en) * | 2021-07-05 | 2021-09-10 | 李学有 | Cup for building combined with painting art and preparation process thereof |
| CN114105605A (en) * | 2021-11-12 | 2022-03-01 | 许杰 | Colorful oil drop cup |
| CN115043642A (en) * | 2022-06-06 | 2022-09-13 | 张昌硕 | Obsidian cup |
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| CN114105605A (en) * | 2021-11-12 | 2022-03-01 | 许杰 | Colorful oil drop cup |
| CN114105605B (en) * | 2021-11-12 | 2024-03-12 | 许杰 | Seven-color oil drop build cup |
| CN115043642A (en) * | 2022-06-06 | 2022-09-13 | 张昌硕 | Obsidian cup |
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