CN111574188A - Kiln column for firing celadon chain ring and preparation method thereof - Google Patents
Kiln column for firing celadon chain ring and preparation method thereof Download PDFInfo
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- 238000010304 firing Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000004017 vitrification Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 29
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 29
- 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 29
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 238000007873 sieving Methods 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- 239000000377 silicon dioxide Substances 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 claims description 6
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 125000000962 organic group Chemical group 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002699 waste material Substances 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
- C04B33/04—Clay; Kaolin
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens or the like for the charge within the furnace
- F27D5/0006—Composite supporting structures
- F27D5/0012—Modules of the sagger or setter type; Supports built up from them
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—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
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—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
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/612—Machining
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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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- 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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Abstract
The invention relates to a porcelain firing tool, in particular to a kiln column for firing celadon chain rings. The kiln post include a cylinder and set up the base of terminal surface under the cylinder, cylinder it be provided with side by side in proper order on vertical direction on the surface and be listed as circular through-hole group, circular through-hole group include the circular through-hole of a plurality of, be listed as adjacent circular through-hole in the circular through-hole group and crisscross the distribution from top to bottom in proper order. The preparation method comprises the steps of grinding and sieving kaolin, mixing the kaolin with water, molding, forming, drilling through holes on the surface of the kaolin to obtain a kiln column blank, drying the kiln column blank, and sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification to obtain a finished kiln column product. The invention overcomes the defect that the kiln column used for firing porcelain in the prior art can not fire ornaments with uniform color and jade-like texture on the whole body, thereby having the advantages of uniform color and good aesthetic property of the celadon sintered by the invention; the mechanical property is better; the cost is low.
Description
Technical Field
The invention relates to a porcelain firing tool, in particular to a kiln column for firing celadon chain rings and a preparation method thereof.
Background
The Longquan celadon is a treasure of traditional Chinese Han porcelain, and is manufactured by Longquan people in Zhejiang in the period of the south-north dynasty by using local superior natural conditions. The eminence of Jing she Longquan celadon at the present stage represents that glittering and translucent pink green glaze and plum green glaze are fired as early as Nansong to achieve the peak, and the green glaze is jade, bright as mirror, thin as paper, and sound as chime. The ancient kiln sites for firing celadon in Longquan city are more than 500, and the ancient kiln sites in Longquan city are more than 360, which are called Longquan kilns.
The kiln column is also called as a pillar or a cushion column, and is a kiln tool for supporting a sagger with blanks and stacking and burning the blanks during porcelain roasting. Is made of refractory clay. The traditional kiln columns are cylindrical, are different in thickness and height, have the diameter of the lower part slightly larger than that of the upper part, are solid or have a slightly hollow center, are quite solid, and have spiral groove marks on the surfaces of the traditional kiln columns; secondly, the device is regularly arranged on a kiln bed, and each column directly supports blanks such as bowls and the like which are stacked and burned. The kiln column is commonly used in northern areas in the Songyuan period. The kiln column for firing can ensure smooth flow of flame and flue gas, can also adjust the temperature difference in the kiln, and is beneficial to firing porcelain.
However, the existing celadon (such as porcelain bowl, porcelain bottle, etc.) has a regular form of celadon ware, which needs to be in contact with a kiln plate erected on the top end of a kiln column during the sintering process, so that the bottom of the celadon ware is usually inconsistent with the color of the ware body, and therefore, the traditional celadon sintering method cannot be used for firing ornaments which need the same color throughout the body and have jade-like texture throughout the body, such as celadon bracelets, celadon bracelets and other articles which need uniform color.
At present, in the celadon firing process, mutual contact between the celadon and the kiln plate cannot be avoided, so that if a kiln column structure can be selected, the kiln plate can be omitted in the firing process, mutual contact between the kiln plate and the porcelain is avoided, and the celadon ornaments with the same whole body color can be fired. For example, the license publication number is CN204730661U, the kiln column is composed of a kiln column body and two kiln column end heads, and the kiln column end heads are provided with heat dissipation notches. The utility model provides an energy-saving kiln post, its design is simple, and is more energy-conserving, can play the radiating effect better, when stopping rapid heating, bursts the damage, has energy-concerving and environment-protective effect again, utilizes the abandonment roller stick of damage to carry out the novel energy-saving kiln post that the water mill cutting reforms transform into various specifications, has stopped abandoning of damage roller stick, makes it to carry out reuse, changing waste into valuables. However, the celadon ware fired through the energy-saving kiln column still cannot achieve the effect of uniform overall color.
Disclosure of Invention
The invention provides a kiln column which is used for firing celadon chain rings and can help to fire decorations with uniform color and no flaws on the whole body, aiming at overcoming the defect that the kiln column used for firing porceladon in the prior art can not fire decorations with uniform color on the whole body and jade-like texture on the whole body.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a kiln post for firing celadon chain link, the kiln post include a cylinder and set up the base of terminal surface under the cylinder, cylinder it set gradually side by side on vertical direction on the surface and be listed as two circular through-hole groups, circular through-hole group include the circular through-hole of a plurality of, two adjacent circular through-hole crisscross distribution about in proper order in two circular through-hole groups.
The kiln column in the invention has completely different using effects from the kiln column in the prior art, the kiln column in the prior art is usually placed below a kiln plate to play a supporting role during porcelain roasting, and then a porcelain blank is placed at the bottom of the kiln plate, however, in this way, because the bottom of the blank is in contact with the kiln plate, after sintering is completed, the color of the bottom of the porcelain is different from the color of the body of the porcelain, so that the attractiveness is influenced, and the defect is particularly fatal for certain porcelain ornaments and ornaments.
The kiln column is different from other kiln columns, the surface of the kiln column is provided with a plurality of circular through holes which are vertically arranged, metal tungsten wires can be inserted into the circular through holes, and then the porcelain blanks are erected through the metal tungsten wires, so that the porcelain and a kiln plate are not directly contacted in the sintering process of the porcelain, the color of the sintered kiln column can be kept uniform, the attractiveness of the sintered kiln column is greatly improved, and the kiln column has more obvious effects on ornaments and ornaments.
Preferably, the cylinder is in a regular cuboid structure, and the circular through holes in the circular through hole group are arranged on two opposite end faces of the cylinder in the cuboid structure in a penetrating manner.
The through hole is formed, so that the mechanical stability of the metal tungsten wire inserted in the circular through hole can be effectively improved.
Preferably, the height of the column body is 30-60 cm, the number of the circular through holes in the circular through hole group is 10-15, and the aperture of each circular through hole is 1-5 mm.
Preferably, the round through holes are horizontal through holes or form an included angle of 10-45 degrees with the horizontal plane upwards.
The circular through holes are arranged at a certain angle, so that the metal tungsten wire playing a supporting role is more stable.
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: grinding and sieving kaolin, mixing the kaolin with water, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by air blast to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a finished kiln column product.
The base material of the kiln column is kaolin, and the kaolin contains silicon dioxide and alumina with high content, so that the kaolin can be sintered at high temperature to form ceramic with certain mechanical strength, and the ceramic to be sintered can be supported to a certain extent. Meanwhile, compared with other materials, the kaolin has extremely low price, so that the cost of the prepared kiln column is extremely low, and the lower the cost is, the higher the comprehensive competitiveness is on the premise of consistent performance as a consumable material when the ceramic is fired.
Preferably, the kaolin contains 47.8 to 53.2 weight percent of silicon dioxide, 42.6 to 45.8 weight percent of alumina and the balance of water.
Compared with the common kaolin, the kaolin used in the invention has higher contents of silicon dioxide and alumina, so that the content of gas decomposed during sintering is less, the density of the sintered kiln column is higher, and the internal holes are less, thereby greatly improving the mechanical strength.
Preferably, the mass ratio of kaolin to water in the step (1) is 100: (10-40).
Preferably, the step (1) further comprises sodium carboxymethyl cellulose accounting for 0.1-1% of the total mass of the kaolin, polyphenyl silsesquioxane accounting for 0.2-0.5% of the total mass of the kaolin, and potassium borate accounting for 1-1.5% of the total mass of the kaolin.
The sodium carboxymethylcellulose is added in the step (1), so that the caking property of kaolin can be effectively improved, and the molding of kiln column ingredients is facilitated, the polyphenylsilsesquioxane is the smallest structural unit of silicon dioxide, and certain organic groups exist, and the cage-shaped silicon dioxide structure can form a cross-linked structure with silicon dioxide and aluminum oxide of the kaolin along with the decomposition of the organic groups in the sintering process, so that the sintered kiln column is tough and stable. Meanwhile, the introduction of potassium borate can effectively reduce the melting of silicon dioxide and aluminum oxide, and the effect of fluxing agent is achieved, so that the porosity inside the kiln column obtained through production is greatly reduced.
Preferably, in the step (3), the drying temperature is 85-110 ℃, and the drying time is 8-12 h.
Kiln post system embryo in-process need add water and mediate to form the mud that has plasticity, however if do not dry these moisture direct sintering behind the system embryo, along with the volatilization of moisture, the hole that wherein moisture escape flows out also can increase, is unfavorable for kiln post mechanical properties's promotion, and the success rate of sintering even also can reduce by a wide margin.
Preferably, the specific process in the step (4) is as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 200-350 ℃, wherein the primary burning time is 0.5-1.5 hours, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 650-900 ℃ at a heating rate of 3-5 ℃/min, carrying out vitrification for 3-5 hours, and opening a kiln door again to discharge water vapor after carrying out medium-temperature vitrification;
high-temperature vitrification: raising the temperature to 1500-1700 ℃ at a temperature rate of 15-30 ℃/min, carrying out vitrification for 4-6 hours, and naturally cooling to room temperature to obtain the kiln column.
In the sintering step of the invention, the low-temperature primary sintering is used for further evacuating the moisture in the blank body, and preventing deformation and fragmentation in the sintering process. After the primary sintering, the temperature is raised, so that the silicon dioxide, the aluminum oxide and other additives in the primary sintering can be subjected to chemical crosslinking and decomposition of organic groups in the sintering process, the density of the sintered blank is increased, the volume is reduced, the high-temperature ceramic step can carry out ceramic conversion on each component in the kiln column, and the density and the mechanical property of the formed kiln column are further improved. Meanwhile, a large amount of water vapor can be accumulated in the kiln along with the decomposition of organic groups in the sintering process, and if the water vapor is not discharged in time, the shape of the device can be influenced, so that the shape difference from the originally designed shape is large.
Therefore, the invention has the following beneficial effects:
(1) the celadon obtained by the kiln column in the invention when the celadon is sintered has uniform color and good aesthetic property;
(2) the mechanical property of the kiln column is better, and the sintering success rate is high;
(3) the kiln column obtained in the invention has low cost and high comprehensive competitiveness.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the present invention in use.
Wherein: the device comprises a column body 1, a base 2, a circular through hole group 3, a circular through hole 4, a metal tungsten wire 5 and a celadon ring 6.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
Kiln post structure:
example 1
As shown in figure 1, a kiln post for firing celadon chain link, the kiln post include that a length height is cylinder 1 and the base 2 of setting terminal surface under cylinder 1 of regular cuboid structure for 30~60cm, cylinder 1 its set gradually side by side on the surface in vertical direction be two circular through-hole groups 3, circular through-hole group 3 include 10~15 aperture be 1~5 mm's circular through-hole 4, two adjacent circular through-hole 4 distribute crisscross from top to bottom in proper order in 3 circular through-hole groups, circular through-hole 4 link up and set up on two relative terminal surfaces of cylinder 1 of cuboid structure, circular through-hole 4 be horizontal through-hole or upwards form the contained angle of 10~45 degrees with the horizontal plane.
As shown in figure 2, when the kiln column is used, a metal tungsten wire 5 is inserted into the circular through hole 4, then a celadon ring 6 is hooked to the front end of the metal tungsten wire 5, the celadon ring 6 and the kiln column can be separated in sintering, and therefore the obtained celadon ring is consistent in color and overall, and attractiveness of the kiln column is greatly improved.
Preparation method of kiln column
Example 2
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: kaolin containing 47.8% silica, 45.8% alumina and 6.4% water was ground and sieved, then mixed according to the weight ratio 100: 40, mixing with water, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by blowing at 85 ℃ for 12h to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a kiln column finished product, wherein the specific parameters of the kiln column finished product are as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 200 ℃, wherein the primary burning time is 1.5 hours, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 650 ℃ at the heating rate of 3 ℃/min, carrying out vitrification for 5 hours, and opening the kiln door again to discharge water vapor after carrying out medium-temperature vitrification;
high-temperature vitrification: raising the temperature to 1500 ℃ at the temperature rate of 30 ℃/min, carrying out vitrification for 4 hours, and naturally cooling to room temperature to obtain the kiln column.
Example 3
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: kaolin containing 53.2% silica, 42.6% alumina and 4.2% water was ground and sieved, then mixed according to the weight ratio 100: 30, mixing with water, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by blowing at 110 ℃ for 8h to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a kiln column finished product, wherein the specific parameters of the kiln column finished product are as follows:
low-temperature primary sintering: performing primary firing on the dried kiln column blank at 350 ℃, wherein the primary firing time is 0.5 hour, and opening a kiln door to discharge water vapor after the primary firing;
medium-temperature vitrification: raising the temperature to 900 ℃ at the heating rate of 5 ℃/min, carrying out vitrification for 3 hours, opening a kiln door again after carrying out medium-temperature vitrification, and discharging water vapor;
high-temperature vitrification: raising the temperature to 1700 ℃ at the temperature rate of 30 ℃/min, carrying out vitrification for 4 hours, and naturally cooling to room temperature to obtain the kiln column.
Example 4
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: kaolin containing 50.1% silica, 43.5% alumina and 6.4% water was ground and sieved, then the ratio by weight 100: 10: 0.1: 0.2: 1, mixing with water, sodium carboxymethyl cellulose, polyphenyl silsesquioxane and potassium borate, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by blowing at 100 ℃ for 10 hours to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a kiln column finished product, wherein the specific parameters of the kiln column finished product are as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 300 ℃, wherein the primary burning time is 1 hour, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 800 ℃ at the heating rate of 4 ℃/min, carrying out vitrification for 4 hours, opening the kiln door again after carrying out medium-temperature vitrification, and discharging water vapor;
high-temperature vitrification: raising the temperature to 1600 ℃ at the temperature rate of 20 ℃/min, carrying out vitrification for 5 hours, and naturally cooling to room temperature to obtain the kiln column.
Example 5
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: kaolin containing 48.2% silica, 43.5% alumina and 8.3% water was ground and sieved, then mixed according to the weight ratio 100: 10: 1: 0.5: 1.5, mixing with water, sodium carboxymethyl cellulose, polyphenyl silsesquioxane and potassium borate, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by blowing at 105 ℃ for 9h to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a kiln column finished product, wherein the specific parameters of the kiln column finished product are as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 250 ℃, wherein the primary burning time is 1.5 hours, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 850 ℃ at the heating rate of 5 ℃/min, carrying out vitrification for 4 hours, opening a kiln door again after carrying out medium-temperature vitrification, and discharging water vapor;
high-temperature vitrification: raising the temperature to 1650 ℃ at the temperature rate of 25 ℃/min, carrying out vitrification for 4.5 hours, and naturally cooling to room temperature to obtain the kiln column.
Example 6
A method for preparing a kiln column for firing celadon links, the method comprising the steps of:
(1) blank preparation: kaolin containing silica 51.3%, alumina 43.5% and 5.2% water was ground and sieved, then the ratio by weight was 100: 10: 0.6: 0.4: 1.2, mixing with water, sodium carboxymethyl cellulose, polyphenyl silsesquioxane and potassium borate, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by blowing at 110 ℃ for 8h to obtain a dried kiln column blank;
(4) sintering and forming: sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a kiln column finished product, wherein the specific parameters are as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 300 ℃, wherein the primary burning time is 1 hour, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 750 ℃ at the heating rate of 4 ℃/min, carrying out vitrification for 3.5 hours, opening the kiln door again after carrying out medium-temperature vitrification, and discharging water vapor;
high-temperature vitrification: raising the temperature to 1550 ℃ at the temperature rate of 25 ℃/min, carrying out vitrification for 6 hours, and naturally cooling to room temperature to obtain the kiln column.
Claims (10)
1. The utility model provides a kiln post for firing celadon chain link, a serial communication port, the kiln post include a cylinder (1) and set up base (2) of terminal surface under cylinder (1), cylinder (1) its set gradually side by side on the surface in vertical direction and be listed as circular through-hole group (3), circular through-hole group (3) include circular through-hole (4) of a plurality of, be listed as circular through-hole (4) adjacent in circular through-hole group (3) and crisscross the distribution from top to bottom in proper order.
2. The kiln column for firing celadon chain rings as claimed in claim 1, characterized in that the column body (1) is of a regular cuboid structure, and the circular through holes (4) in the circular through hole group (3) are arranged on two opposite end faces of the column body (1) of the cuboid structure in a penetrating manner.
3. The kiln column for firing celadon chain rings according to claim 1 or 2, characterized in that the height of the column body (1) is 30-60 cm, wherein the number of the circular through holes (4) in the circular through hole group (3) is 10-15, and the diameter of the circular through holes (4) is 0.1-5 mm.
4. The kiln column for firing celadon links as claimed in claim 1 or 2, characterized in that the circular through holes (4) are horizontal through holes or form an angle of 10-45 degrees with the horizontal plane upwards.
5. The preparation method of the kiln column for firing the celadon chain ring is characterized by comprising the following steps of:
(1) blank preparation: grinding and sieving kaolin, mixing the kaolin with water, and uniformly stirring to obtain a blank;
(2) manufacturing a blank body: molding the blank, drilling a through hole on the surface to obtain a kiln column blank,
(3) drying: drying the kiln column blank by air blast to obtain a dried kiln column blank;
(4) sintering and forming: and (3) sequentially carrying out low-temperature primary firing, medium-temperature vitrification and high-temperature vitrification on the dried kiln column blank to obtain a finished kiln column product.
6. The method for preparing a kiln column for firing celadon links as claimed in claim 5, wherein the kaolin comprises 47.8-53.2% by weight of silica, 42.6-45.8% by weight of alumina and the balance of water.
7. The method for preparing a kiln column for firing celadon links as claimed in claim 5, wherein the mass ratio of kaolin to water in step (1) is 100: (10-40).
8. The method for preparing the kiln column for firing the celadon chain ring according to claim 5 or 7, wherein the step (1) further comprises sodium carboxymethyl cellulose accounting for 0.1-1% of the total mass of kaolin, polyphenyl silsesquioxane accounting for 0.2-0.5% of the total mass of kaolin, and potassium borate accounting for 1-1.5%.
9. The preparation method of the kiln column for firing the celadon chain ring according to claim 5, wherein the drying temperature in the step (3) is 85-110 ℃, and the drying time is 8-12 h.
10. The method for preparing a kiln column for firing celadon links as claimed in claim 5, wherein the specific process in the step (4) is as follows:
low-temperature primary sintering: primarily burning the dried kiln column blank at 200-350 ℃, wherein the primary burning time is 0.5-1.5 hours, and opening a kiln door to discharge water vapor after primary sintering;
medium-temperature vitrification: raising the temperature to 650-900 ℃ at a heating rate of 3-5 ℃/min, carrying out vitrification for 3-5 hours, and opening a kiln door again to discharge water vapor after carrying out medium-temperature vitrification;
high-temperature vitrification: raising the temperature to 1500-1700 ℃ at a temperature rate of 15-30 ℃/min, carrying out vitrification for 4-6 hours, and naturally cooling to room temperature to obtain the kiln column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910117945.4A CN111574188A (en) | 2019-02-15 | 2019-02-15 | Kiln column for firing celadon chain ring and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910117945.4A CN111574188A (en) | 2019-02-15 | 2019-02-15 | Kiln column for firing celadon chain ring and preparation method thereof |
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