CN108395208A - The method for improving large-scale Nixing pottery vessel firing rate - Google Patents

The method for improving large-scale Nixing pottery vessel firing rate Download PDF

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Publication number
CN108395208A
CN108395208A CN201810525252.4A CN201810525252A CN108395208A CN 108395208 A CN108395208 A CN 108395208A CN 201810525252 A CN201810525252 A CN 201810525252A CN 108395208 A CN108395208 A CN 108395208A
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parts
blank
weight
nixing pottery
firing rate
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CN201810525252.4A
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Inventor
钟恒成
李秀明
王宁
陶艳华
韦树清
黄小阳
吴尚玉
陈玉星
刘展鹏
刘鹏飞
何艳梅
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Qinzhou University
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Qinzhou University
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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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • C04B2235/3203—Lithium oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The present invention provides the methods for improving large-scale Nixing pottery vessel firing rate, including prepare blank, blank forming, body drying and fire green body, and the blank for preparing is by 40~60 parts by weight of eastern mud, 60~40 parts by weight of western mud, Li23~6 parts by weight of O, Na2CO30.02~0.04 parts by weight mix, and blank is made according to a conventional method.The present invention adds Li in Nixing pottery blank2O and Na2CO3The intensity of mullite network structure in green body can be greatly improved, the appearance of crackle can be effectively reduced, improves firing rate.

Description

The method for improving large-scale Nixing pottery vessel firing rate
Technical field
The present invention relates to the manufacture crafts of Nixing pottery, and in particular to the method for improving large-scale Nixing pottery vessel firing rate.
Background technology
Qiezhou Nixing pottery, scientific name are that purple mud is made pottery, and make pottery with Jiangsu purple sand ceramics, Yunnan Jian Shui potteries, Chongqing Rongchang County and claim China four Big name pottery.Nixing pottery is a wonderful work in Chinese national culture art, has very long manufacture craft, great culture to receive Hide value, it may have very strong practicability.Blank used in Nixing pottery is finely free from foreign meter, and manufactured pottery kitchenware stomatal frequency is suitable In, the fresh-keeping effect of drink can be played.Meanwhile the additives such as any preservative are not added in Nixing pottery preparation process, finished product is not Containing any toxic component, used as kitchenware, it is very healthy and safe.Nixing pottery vessel are divided into large-scale vessel (directly by vessel model Diameter and/or height >=40cm and be less than 100cm) and small-sized vessel (diameter and the equal ＜ 40cm of height).No matter Nixing pottery vessel are big Small, manufacture craft all, including prepares blank, blank molding, finishing blank, body drying, green body decoration, green body firing With polishing grinding process.Wherein, green body firing is the critical process in Nixing pottery manufacturing process, is related to the firing rate of finished product. For large-scale vessel since part is big, wall thickness, firing rate is generally relatively low, and only 60% or so, it is even lower, cause large-scale vessel to be burnt into The relatively low reason of rate mainly has following three points：1, large-scale vessel green body heats up in high temperature firing too fast easy tos produce uneven receipts It contracts and causes to deform or crack；2, moisture is excessively high when green body enters kiln, and heating is too fast to cause base to shrink uneven and cause to crack；3、 Large-scale vessel are easy to form larger structural stress since cooling is too fast, and inside green body and surface also will in cooling stage There is larger thermal stress, causes to crack.
Invention content
Technical problem to be solved by the invention is to provide the methods for improving large-scale Nixing pottery vessel firing rate.
In order to solve the above technical problems, the technical solution adopted by the present invention is a kind of large-scale Nixing pottery vessel firing rate of raising Method, including prepare blank, blank forming, body drying and fire green body, the blank for preparing is by 40~60 weight of eastern mud Measure part, 60~40 parts by weight of western mud, Li23~6 parts by weight of O, Na2CO30.02~0.04 parts by weight mix, and make according to a conventional method At blank.
Na is added in Nixing pottery blank2CO3, in sintering procedure, CO3 2+It can promote around mullite lattice Lacking oxygen Al, Si atom cause lattice more loose further away from Lacking oxygen, help Li2O, which enters, forms solid solution in mullite crystal Body strengthens the intensity of mullite network structure.Li2The entrance of O is simultaneously dispersed in mullite crystal, is played pinning, is tangled The effect of dislocation, it is suppressed that the sliding of dislocation limits fracture, improves Nixing pottery blank strength.
Preferably, the parts by weight of each raw material are：60 parts of eastern mud, 40 parts of western mud, Li23~6 parts of O, Na2CO30.02~ 0.04 part.
It is further preferred that the parts by weight of each raw material are：60 parts of eastern mud, 40 parts of western mud, Li25 parts of O, Na2CO3 0.03 Part.
The firing green body is that the green body dried is sent into kiln, from room temperature to 200 DEG C in 1~1.5 hour, 600 DEG C are risen to 45~55 DEG C of the speed of heating up per hour again, then rises to 1100 with 65~75 DEG C of the speed of heating up per hour ~1160 DEG C, stop heating, natural cooling, kiln discharge to get.
Preferably, dry green body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with per hour 50 DEG C of speed of heating rises to 600 DEG C, then rises to 1150 DEG C with 70 DEG C of the speed of heating up per hour, stops heating, naturally cold But, kiln discharge to get.
Compared with prior art, the present invention adds Li in Nixing pottery blank2O and Na2CO3It can greatly improve in green body not Carry out the intensity of stone network structure, can effectively reduce the appearance of crackle, improves firing rate.
Specific implementation mode
The essentiality content further illustrated the present invention below with embodiment, but the present invention is not limited with this.
Embodiment 1
1) blank is prepared：By eastern mud 4000Kg, western mud 6000Kg, Li2O 300Kg、Na2CO32Kg is mixed, routinely side Blank is made in method；
2) blank forming：Vase vessel 100 (height 60cm, maximum gauge 40cm) are made in blank；
3) dry base substrate；
4) green body is fired：Dry green body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with per hour 45 DEG C of speed of heating rises to 600 DEG C, then rises to 1100 DEG C with 65 DEG C of the speed of heating up per hour, stops heating, naturally cold But, kiln discharge to get.
Through statistics, serviceability rate is 91.
Reference examples 1
1) blank is prepared：Eastern mud 4000kg, western mud 6000Kg are mixed, blank is made according to a conventional method；
2) blank forming：Vase vessel 100 (height 60cm, maximum gauge 40cm) are made in blank；
3) dry base substrate；
4) green body is fired：Dry green body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with per hour 45 DEG C of speed of heating rises to 600 DEG C, then rises to 1100 DEG C with 65 DEG C of the speed of heating up per hour, stops heating, naturally cold But, kiln discharge to get.
Through statistics, serviceability rate is 20.
Embodiment 2
1) blank is prepared：By eastern mud 6000Kg, western mud 4000Kg, Li2O 600Kg、Na2CO34Kg is mixed, routinely side Blank is made in method；
2) blank forming：Vase vessel 100 (height 60cm, maximum gauge 40cm) are made in blank；
3) dry base substrate；
4) green body is fired：Dry green body is sent into kiln, from room temperature to 200 DEG C in 1.5 hours, then with every small The speed that 55 DEG C of Shi Shengwen rises to 600 DEG C, then rises to~1160 DEG C with 75 DEG C of the speed of heating up per hour, stops heating, from It is so cooling, kiln discharge to get.
Through statistics, serviceability rate is 90.
Embodiment 3
1) blank is prepared：By eastern mud 6000Kg, western mud 4000Kg, Li2O 500Kg、Na2CO33Kg is mixed, routinely side Blank is made in method；
2) blank forming：Vase vessel 100 (height 60cm, maximum gauge 40cm) are made in blank；
3) dry base substrate；
4) green body is fired：Dry green body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with per hour 50 DEG C of speed of heating rises to 600 DEG C, then rises to 1150 DEG C with 70 DEG C of the speed of heating up per hour, stops heating, naturally cold But, kiln discharge to get.
Through statistics, serviceability rate is 92.
Embodiment 4
1) blank is prepared：By eastern mud 6000Kg, western mud 4000Kg, Li2O 300Kg、Na2CO34Kg is mixed, routinely side Blank is made in method；
2) blank forming：Vase vessel 100 (height 60cm, maximum gauge 40cm) are made in blank；
3) dry base substrate；
4) green body is fired：Dry green body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with per hour 55 DEG C of speed of heating rises to 600 DEG C, then rises to 1160 DEG C with 65 DEG C of the speed of heating up per hour, stops heating, naturally cold But, kiln discharge to get.
Through statistics, serviceability rate is 90.

Claims (5)

1. the method for improving large-scale Nixing pottery vessel firing rate, including prepare blank, blank forming, body drying and fire base Body, it is characterised in that：The blank for preparing is by 40~60 parts by weight of eastern mud, 60~40 parts by weight of western mud, Li23~6 weight of O Part, Na2CO30.02~0.04 parts by weight mix, and blank is made according to a conventional method.
2. the method according to claim 1 for improving large-scale Nixing pottery vessel firing rate, it is characterised in that：In the blank The parts by weight of each raw material are：60 parts of eastern mud, 40 parts of western mud, Li23~6 parts of O, Na2CO30.02~0.04 part.
3. the method according to claim 2 for improving large-scale Nixing pottery vessel firing rate, it is characterised in that：In the blank The parts by weight of each raw material are：60 parts of eastern mud, 40 parts of western mud, Li25 parts of O, Na2CO30.03 part.
4. the method according to claim 1 for improving large-scale Nixing pottery vessel firing rate, it is characterised in that：The firing base Body is that the green body dried is sent into kiln, from room temperature to 200 DEG C in 1~1.5 hour, then with heat up 45 per hour~ 55 DEG C of speed rises to 600 DEG C, then rises to 1100~1160 DEG C with 65~75 DEG C of the speed of heating up per hour, stops heating, Natural cooling, kiln discharge to get.
5. the method according to claim 4 for improving large-scale Nixing pottery vessel firing rate, it is characterised in that：By dry base Body is sent into kiln, from room temperature to 200 DEG C in 1 hour, then with 50 DEG C of the speed of heating up per hour rises to 600 DEG C, so Rise to 1150 DEG C with 70 DEG C of the speed of heating up per hour afterwards, stop heating, natural cooling, kiln discharge to get.
CN201810525252.4A 2018-05-28 2018-05-28 The method for improving large-scale Nixing pottery vessel firing rate Pending CN108395208A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104446347A (en) * 2014-11-10 2015-03-25 钦州学院 Method for reducing deformation rate of finished Nixing pottery product
CN104909714A (en) * 2015-06-05 2015-09-16 钦州市华夏太极泉坭兴陶艺有限责任公司 Method for increasing kiln transformation ratio of Nixing pottery large vessels
CN104961436A (en) * 2015-06-15 2015-10-07 钦州学院 Method for increasing sintering rate of Nixing pottery large utensil
CN105130398A (en) * 2015-09-25 2015-12-09 钦州学院 Dry pressing process for Nixing pottery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104446347A (en) * 2014-11-10 2015-03-25 钦州学院 Method for reducing deformation rate of finished Nixing pottery product
CN104909714A (en) * 2015-06-05 2015-09-16 钦州市华夏太极泉坭兴陶艺有限责任公司 Method for increasing kiln transformation ratio of Nixing pottery large vessels
CN104961436A (en) * 2015-06-15 2015-10-07 钦州学院 Method for increasing sintering rate of Nixing pottery large utensil
CN105130398A (en) * 2015-09-25 2015-12-09 钦州学院 Dry pressing process for Nixing pottery

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
（苏）李特瓦柯夫斯基: "《熔注耐火材料》", 30 November 1963, 北京：中国工业出版社 *
《稀有金属应用》编写组编: "《稀有金属应用 上》", 31 October 1974, 北京：冶金工业出版社 *
吴承钧主编: "《建筑装饰材料与施工工艺》", 30 October 2016, 郑州：河南科学技术出版社 *
林彬荫等: "《耐火材料原料》", 30 November 2015, 北京：冶金工业出版社 *
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