CN107117937A - A kind of Nixing pottery soil and preparation method thereof - Google Patents

A kind of Nixing pottery soil and preparation method thereof Download PDF

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Publication number
CN107117937A
CN107117937A CN201710438643.8A CN201710438643A CN107117937A CN 107117937 A CN107117937 A CN 107117937A CN 201710438643 A CN201710438643 A CN 201710438643A CN 107117937 A CN107117937 A CN 107117937A
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CN
China
Prior art keywords
blank
mud
nixing pottery
eastern
preparation
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CN201710438643.8A
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Chinese (zh)
Inventor
曾凡跃
李友
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Qinnan Qinzhou District Science And Technology Information Institute
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Qinnan Qinzhou District Science And Technology Information Institute
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Priority to CN201710438643.8A priority Critical patent/CN107117937A/en
Publication of CN107117937A publication Critical patent/CN107117937A/en
Pending legal-status Critical Current

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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
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives

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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 invention discloses a kind of Nixing pottery soil and preparation method thereof, the clay includes the component of following parts by weight：Eastern 4~6 parts of mud, 6~4 parts of western mud, Na2Ti3O70.1~0.3 part.Its preparation method is that eastern mud, western mud are conventionally first made into blank；Again by Na2Ti3O7Crush, be mixed into blank, dry, produce.The present invention adds Na in Nixing pottery conventional blanks2Ti3O7, frictional force of the blank under the conditions of dry-pressing can be reduced, the mobility of blank is improved so that molding blank is uniform.The blank density that the clay of the present invention is suppressed under unidirectional pressurized conditions is uniform, and distortion and cracking probability are substantially reduced in follow-up sintering procedure.

Description

A kind of Nixing pottery soil and preparation method thereof
Technical field
The present invention relates to the pug of Nixing pottery, and in particular to a kind of available for dry-pressing formed Nixing pottery soil and its preparation side Method.
Background technology
Nixing pottery is the distinctive technique pottery in Guangxi, and it uses the distinctive eastern mud in Qinzhou Prefecture and western mud for raw material, is passed through Weathering, ball milling, press filtration, vacuum pugging, it is old after blank is made, then through shaping, dry, fire etc. technique be made.Nixing pottery Moulding is steady, antique, the color transformed infinite, depiction of transmutation is colourful, has much local national characteristics, deep by all circles Personage favors.Wet moulding, such as stiff-mud process and slip casting method are used the forming method of traditional Nixing pottery more.Wet moulding is maximum to be lacked It is that process cycle is long to fall into, body drying high energy consumption.With the development of Nixing pottery industrialization, the exploration to short period production technique Seem important all the more.Dry pressuring forming process is simple, and operating method, the cycle is short, efficiency high, is easy to carry out automated production.Such as public affairs The number of opening discloses a kind of Nixing pottery dry process for forming for CN102229184A patent of invention, and eastern mud and western mud are crushed into 80 ~120 mesh, by 5~6:4~5 weight obtains clay powder than mixing；Suitable aluminium alloy mould is selected further according to shape of product Tool, aluminum alloy mould is fixed on hydraulic press, then inserted clay powder under aluminum alloy mould in the die cavity of mould, Positive pressure is compressing under 80~400 tons of pressure condition.Because the technique is unidirectional pressurization, the bearing plate of mould lower end It is fixed with formpiston, only pressurizeed by formpiston by top, due to the frictional resistance between clay and between clay and die wall It is sizable, necessarily causes obvious barometric gradient, therefore the blank structure being pressed into has obvious anisotropy, Density Distribution Heterogeneity, and this Density inhomogeneity is distributed in follow-up sintering procedure and is easily caused distortion and ftractures, it is small-sized for Nixing pottery For vessel (diameter ＜ 25cm, height ＜ 40cm), distortion and cracking probability be 30% or so, for medium-sized vessel (25cm≤ Diameter ＜ 40cm, 40cm≤height ＜ 80cm) for, distortion and cracking probability are 50% or so, for the large-scale vessel of Nixing pottery For (diameter >=40cm, height >=80cm), distortion and cracking probability are just higher, and even as high as more than 70%, largely effect on Product quality.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of Nixing pottery soil and preparation method thereof, the clay is in dry-pressing condition Under, the frictional force between clay particle and between clay and metal die wall is smaller, and molding blank is uniform.
The technical scheme that the present invention is provided is a kind of Nixing pottery soil, includes the component of following parts by weight：Eastern 4~6 parts of mud, west 6~4 parts of mud, Na2Ti3O70.1~0.3 part.
Eastern mud and western mud are all by Al2O3、SiO2、Fe2O3Deng metal oxide composition, and metal oxide surface atom because Tend to carry out ion coordination with the water in air with undersaturated chemical bond, most incident process is surface hydroxyl Change, under unidirectional pressurized conditions, frictional force is big between particle easily formation hydrogen bond close to each other causes powder, reduces powder flow Dynamic property, so as to cause even green body extreme difference.And Na is added in blank2Ti3O7, Na2Ti3O7, can with very strong hygroscopicity Grab Al2O3、SiO2、Fe2O3Deng the hydrone around metal oxide, it is to avoid above-mentioned metal oxide surface hydroxylating and occur Reunite.Na2Ti3O7The reaction generation metatitanic acid after moisture is absorbed, metatitanic acid can be polymerize with faster speed, gradually form monomer Form have very big active metatitanic acid polymer, metatitanic acid polymer overmold in metal oxide surface so that formed one layer Even unbodied titanium oxide epidermis shape film, thus liquid bridge power can be substantially reduced, prevent blank particle aggregation.Other titanium oxide table Skin shape film steric hindrance is far longer than-OH, and interparticle active force is reduced, so as to reduce the frictional force between blank particle, made Obtain blank resistance in forming process to be greatly reduced, mobility is improved.Na2Ti3O7Metal ion surface ζ electricity can also be improved Position, increases interparticle electrostatic repulsion so that base substrate is reduced in unidirectional pressurization between particle, rubbing between particle and die wall Power is wiped, compressing even green body is improved.
Preferably, the parts by weight of each component are：Eastern 6 parts of mud, 4 parts of western mud, Na2Ti3O70.2 part.
Present invention also offers the preparation method of above-mentioned Nixing pottery soil, comprise the following steps：
1) blank is conventionally made in eastern mud, western mud；
2) by Na2Ti3O7Crush, be mixed into blank, dry, produce.
The granularity of above-mentioned blank is 4~6 μm.
Na2Ti3O7Granularity is crushed to for 4~6 μm.
Compared with prior art, the invention has the advantages that:
1) present invention adds Na in Nixing pottery conventional blanks2Ti3O7, frictional force of the blank under the conditions of dry-pressing can be reduced, Improve the mobility of blank so that molding blank is uniform.
2) blank density that clay of the invention is suppressed under unidirectional pressurized conditions is uniform, is distorted in follow-up sintering procedure Substantially reduced with cracking probability.
Embodiment
The present invention is further elaborated for specific examples below, but not as a limitation of the invention.
Embodiment 1
1) eastern mud 400kg, western mud 600kg, Na are weighed2Ti3O710kg, it is standby.
2) eastern mud and western mud are mixed according to the above ratio, weathering 4 months, entering ball mill grinding, (abrasive media is goose ovum Stone), press filtration (filter screen is 100 mesh), vacuum pugging old 15 days, obtains blank, the particle diameter of blank is at 4~6 μm.
3) by Na2Ti3O74~6 μm are crushed to, is mixed into blank, is dried, Nixing pottery soil is produced.
4) Nixing pottery soil is inserted in metal die cavity, suppresses 30s in the case where front pressure is 50MPa, produce teapot base substrate. (a diameter of 15cm is highly 30cm).
Embodiment 2
1) eastern mud 600kg, western mud 400kg, Na are weighed2Ti3O720kg, it is standby.
2) eastern mud and western mud are mixed according to the above ratio, weathering 6 months, entering ball mill grinding, (abrasive media is goose ovum Stone), press filtration (filter screen is 100 mesh), vacuum pugging old 15 days, obtains blank, the particle diameter of blank is at 4~6 μm.
3) by Na2Ti3O74~6 μm are crushed to, is mixed into blank, is dried, Nixing pottery soil is produced.
4) Nixing pottery soil is inserted in metal die cavity, suppresses 30s in the case where front pressure is 50MPa, produce teapot base substrate. (a diameter of 15cm is highly 30cm).
Reference examples 1
1) eastern mud 600kg, western mud 400kg are weighed, it is standby.
2) eastern mud and western mud are mixed according to the above ratio, weathering 6 months, entering ball mill grinding, (abrasive media is goose ovum Stone), press filtration (filter screen is 100 mesh), vacuum pugging old 15 days, obtains blank, the particle diameter of blank is at 4~6 μm.
3) blank is inserted in metal die cavity, suppresses 30s in the case where front pressure is 50MPa, produce teapot base substrate.(diameter It is highly 30cm for 15cm).
Embodiment 3
1) eastern mud 500kg, western mud 500kg, Na are weighed2Ti3O715kg, it is standby.
2) eastern mud and western mud are mixed according to the above ratio, weathering 5 months, entering ball mill grinding, (abrasive media is goose ovum Stone), press filtration (filter screen is 100 mesh), vacuum pugging old 15 days, obtains blank, the particle diameter of blank is at 4~6 μm.
3) by Na2Ti3O74~6 μm are crushed to, is mixed into blank, is dried, Nixing pottery soil is produced.
4) Nixing pottery soil is inserted in metal die cavity, suppresses 30s in the case where front pressure is 50MPa, produce teapot base substrate. (a diameter of 15cm is highly 30cm).
Embodiment 4
1) eastern mud 400kg, western mud 600kg, Na are weighed2Ti3O730kg, it is standby.
2) eastern mud and western mud are mixed according to the above ratio, weathering 6 months, entering ball mill grinding, (abrasive media is goose ovum Stone), press filtration (filter screen is 100 mesh), vacuum pugging old 15 days, obtains blank, the particle diameter of blank is at 4~6 μm.
3) by Na2Ti3O74~6 μm are crushed to, is mixed into blank, is dried, Nixing pottery soil is produced.
4) Nixing pottery soil is inserted in metal die cavity, suppresses 30s in the case where front pressure is 50MPa, produce teapot base substrate. (a diameter of 15cm is highly 30cm).
The base substrate of embodiment 1~4 and reference examples 1 is subjected to density measurement, 1 is the results are shown in Table.And from embodiment 1~4 with And the base substrate of reference examples 1 selects 100 teapot base substrates and 10h is fired at 1120 DEG C respectively, calculate burn till rate respectively, the results are shown in Table 2。
Table 1
Due to Al in blank2O3Accounting about 15%, SiO2Accounting about 65%, Fe2O3Accounting about 5%, by base substrate solid density For (3.9 × 15%+2.2 × 65%+5.24 × 5%)/85%=2.68g/cm3Come the percent by volume calculated.
Table 2
Group Base substrate sum (individual) Distort (individual) Ftracture (individual) Burn till rate
Embodiment 1 100 1 1 98%
Embodiment 2 100 0 0 100%
Embodiment 3 100 0 1 99%
Embodiment 4 100 2 1 97%
Reference examples 1 100 9 10 81%

Claims (5)

1. a kind of Nixing pottery soil, it is characterised in that：Include the component of following parts by weight：Eastern 4~6 parts of mud, 6~4 parts of western mud, Na2Ti3O70.1~0.3 part.
2. Nixing pottery soil according to claim 1, it is characterised in that：The parts by weight of each component are：Eastern 6 parts of mud, western mud 4 Part, Na2Ti3O70.2 part.
3. the preparation method of Nixing pottery soil according to claim 1 or 2, it is characterised in that：Comprise the following steps：
1) blank is conventionally made in eastern mud, western mud；
2) by Na2Ti3O7Crush, be mixed into blank, dry, produce.
4. the preparation method of Nixing pottery soil according to claim 3, it is characterised in that：The granularity of the blank is 4~6 μ m。
5. the preparation method of Nixing pottery soil according to claim 3, it is characterised in that：Na2Ti3O7Be crushed to granularity for 4~ 6μm。
CN201710438643.8A 2017-06-12 2017-06-12 A kind of Nixing pottery soil and preparation method thereof Pending CN107117937A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107825566A (en) * 2017-11-03 2018-03-23 钦州学院 The dry-pressing formed method of Nixing pottery

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229184A (en) * 2011-05-18 2011-11-02 广西钦州千秋陶业有限公司 Dry forming process for purple clay porcelain

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229184A (en) * 2011-05-18 2011-11-02 广西钦州千秋陶业有限公司 Dry forming process for purple clay porcelain

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107825566A (en) * 2017-11-03 2018-03-23 钦州学院 The dry-pressing formed method of Nixing pottery

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