CN108046744A - The technique for improving Nixing pottery dry powder blank mobility - Google Patents

The technique for improving Nixing pottery dry powder blank mobility Download PDF

Info

Publication number
CN108046744A
CN108046744A CN201711390459.7A CN201711390459A CN108046744A CN 108046744 A CN108046744 A CN 108046744A CN 201711390459 A CN201711390459 A CN 201711390459A CN 108046744 A CN108046744 A CN 108046744A
Authority
CN
China
Prior art keywords
mud
powder
nixing pottery
dry
moisture content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711390459.7A
Other languages
Chinese (zh)
Inventor
黄海武
秦意霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinzhou Huaxia Taijiquan Ningxing Ceramic Art Co Ltd
Original Assignee
Qinzhou Huaxia Taijiquan Ningxing Ceramic Art Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qinzhou Huaxia Taijiquan Ningxing Ceramic Art Co Ltd filed Critical Qinzhou Huaxia Taijiquan Ningxing Ceramic Art Co Ltd
Priority to CN201711390459.7A priority Critical patent/CN108046744A/en
Publication of CN108046744A publication Critical patent/CN108046744A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C04B33/1305—Organic 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
    • C04B33/20—Preparing or treating the raw materials individually or as batches for dry-pressing
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron

Abstract

The invention discloses a kind of techniques for improving Nixing pottery dry powder blank mobility, comprise the following steps：1) Nixing pottery mud is taken, adds in the SiC particulate of its weight 0.1 0.5%, co-grinding is first placed under 500 1000MHz and handles 20 25min, is subsequently placed under 100 200GHz and handles 1 3min, obtains clay powder；2) after Sodium Polyacrylate being mixed into clay powder, it is sent into dry granulating machine and carries out humidification granulation, obtains the powder that moisture content is 12 15%；3) by powder drying to moisture content for 6~7% to get.The present invention adds in SiC particulate in traditional Nixing pottery mud and with reference to microwave treatment, can obtain that surface is smooth, and regular shape, the spherical particle of good fluidity is suitble to follow-up dry-pressing formed.

Description

The technique for improving Nixing pottery dry powder blank mobility
Technical field
The present invention relates to the manufacture crafts of Nixing pottery, and in particular to the technique for improving Nixing pottery dry powder blank mobility.
Background technology
Qiezhou Nixing pottery ranks four big name of China with Jiangsu's purple sand ceramics, Yunnan Jian Shui potteries, Sichuan Rongchang County pottery and makes pottery, and enjoys great prestige At home and abroad.Nixing pottery conventional preparation techniques include preparing blank, blank forming, body drying and green body are fired, wherein, base Prepared by material comprises the following steps：1) mud is selected：It is raw material first to select the eastern mud for the Qin Jiang two sides for crossing Qiezhou urban district and western mud, White clay (eastern mud) is distributed mainly on Jiang Yidong areas by the emperor himself, is mostly stored in low lying areas, and external appearance characteristic is soft for compact substance, is glued to be soft Soil；Western mud is distributed in Jiang Yixi by the emperor himself, and matter is hard, and iron-holder is high, and contains micro quartz sand.2) weathering：Because eastern mud is soft and thin, So being unable to air storage after excavating, prevention heavy rain drenches, and mud is avoided to be lost in.And western mud is block hard paste, Necessary air storage, by the sunlight of 4~6 months, the effect frozen by the dissolving of rainwater and water occurred western mud broken It dissipates, dissolve and aoxidizes, achieve the effect that weathering.3) ball milling：Water is added to be put into togerther ball mill (grinding medium eastern mud and western mud in proportion Matter is cobblestone) it is ground and mixes, general 8 hours of ball milling, in order to make mud finer and smoother, Ball-milling Time can be increased.4) Press filtration：40 mesh and 100 mesh filter screens are crossed after ball milling, into sedimentation basin, stands after mud sediment, the clear water on upper strata is drained, then Mud item is made by filter press dehydration in mud；5) vacuum pugging：The air in mud item, mud warp are excluded using vacuum deairing machine After crossing application of vacuum, air content is low, improves plasticity, comprehensive and dry body hardness.6) it is aging：Mud is aging 15 in dark place It allows mud to play serial physical, chemical change in the nonventilated environment of humidity, can obtain the performance of mud up to blank To improvement, such as moisture moistening is uniform, plasticity enhances, mechanical strength increases, and dries in the shade so as to reduce in forming process and green compact Cracking in the process.Blank forming mainly uses the throwing method of forming, slip casting, moulding moulage method, roll forming method, wherein Injection forming and roll forming method are using gypsum mold, and moulding moulage method makees mold using sulphur, and roll forming method and stamp The method of forming uses plastic making blank, and injection forming uses slip casting blank.For traditional Nixing pottery manufacturing process Speech, whether blank preparation section or blank forming process, are all using wet processing, there are process cycle length, green bodies The defects of energy consumption for drying is high with the development of Nixing pottery industrialization, also seems more important to the exploration of short period production technique. It is dry-pressing formed, it is a kind of simple for process, easy to operate, the cycle is short, efficient forming method, but dry-pressing formed for mud The requirement of emerging greenwave material is high, and blank viscosity is too big made from conventional method, and the frictional force between blank is big, and mobility is very poor, Direct dry-pressing is easy to cause molding blank density unevenness one, is extremely unfavorable for being smoothed out for subsequent handling.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of technique for improving Nixing pottery dry powder blank mobility, the techniques The mobility of blank can be improved, it is suitable dry-pressing formed, Nixing pottery producing efficiency is greatly improved, effectively eliminates molding blank density The defects of distributing inhomogeneity, that improves molding blank burns till rate.
Technical solution provided by the invention is the preparation process of the blank of Nixing pottery, is comprised the following steps：
1) Nixing pottery mud is taken, adds in the SiC particulate of its weight 0.1-0.5%, co-grinding is first placed in 500- 20-25min is handled under 1000MHz, is subsequently placed under 100-200GHz and handles 1-3min, obtain clay powder；
2) after Sodium Polyacrylate being mixed into clay powder, it is sent into dry granulating machine and carries out humidification granulation, obtain aqueous Rate is the powder of 12-15%；
3) by powder drying to moisture content for 6~7% to get.
In step 1), SiC particulate is mixed into Nixing pottery mud, SiC particulate is handled under the microwave field of 500-1000MHz For 20-25min by phase mutual friction, collision generates substantial amounts of thermal energy, and SiC particulate temperature is made to increase, so as to cause Si-C disconnect with Al in Nixing pottery mud2O3It reacts and generates the Al of pole shape4C3Phase, under the effect of 100-200GHz microwave powers, pole The Al of shape4C3Crystal shape, which changes, becomes the spherulite of more satisfactory spherical shape.The Al of generation4C3Spherulite is attached to Mud particle surface greatly enhances the dispersiveness of Nixing pottery mud particle.And Al4C3Spherulite is very small, emerging for mud Mud of making pottery grain shape also has certain repairing effect so that the powder that dry method is made is rounder and more smooth, regular, further reduces Frictional force between powder.
In step 1), the weight ratio of eastern mud and western mud is 4~6：6~4.The eastern mud is mainly distributed on Jiang Yidong by the emperor himself Domain is mostly stored in low lying areas, and compact substance is soft, is mild-clay, for color to show slightly yellow-white in red, iron-holder is high, and contains Micro quartz sand.Eastern mud plays a part of to adjust plasticity and associativity in the production technology of Nixing pottery.The western mud is main Region to the west of river by the emperor himself is distributed in, based on hillside, compact massive is hard paste, is that a kind of iron-holder is higher on storage ground Purple mudstone, color are aubergine, and superficial layer has a small amount of irony to disseminate, and is hard paste, plasticity and associativity are poor.As excellent The weight ratio of choosing, eastern mud and western mud is 6：4.
In step 2), Sodium Polyacrylate is polar molecule, has hydrophilic and oleophobic characteristic, the polar group energy in molecule It firmly adsorbs and forms colloid layer in solid particles surface, and colloid layer has in itself with extraordinary water absorbing properties, so carrying The high wettability of mud particle surface, is conducive to particle and disperses.
Compared with prior art, the invention has the advantages that：
1) SiC particulate is added in traditional Nixing pottery mud and with reference to microwave treatment, it is smooth to can obtain surface, shape rule Then, the spherical particle of good fluidity is suitble to follow-up dry-pressing formed.
2) addition of Sodium Polyacrylate can further enhance the dispersiveness of clay particle.
3) blank of the invention is very suitable for dry-pressing formed, and to can obtain blank density homogeneous into parison through dry-pressing formed Body.Since molding blank density is homogeneous, in follow-up sintering procedure, distortion and cracking are greatly reduced, improves yield rate.
Specific embodiment
The present invention is further elaborated for specific examples below, but not as a limitation of the invention.
Embodiment 1
1) it is by weight 4 to take eastern mud and western mud：6 are mixed to get Nixing pottery mud, add in SiC of its weight 0.1% Grain, co-grinding to 200 mesh are first placed under 500MHz and handle 20min, be subsequently placed under 100GHz and handle 1min, obtain clay Powder；
2) after 0.5% Sodium Polyacrylate of its weight being mixed into clay powder, it is sent into dry granulating machine and is humidified It is granulated, obtains the powder that moisture content is 12%；
3) by powder drying to moisture content for 6% to get.
Embodiment 2
1) it is by weight 6 to take eastern mud and western mud：4 are mixed to get Nixing pottery mud, add in SiC of its weight 0.5% Grain, co-grinding to 300 mesh are first placed under 1000MHz and handle 25min, be subsequently placed under 200GHz and handle 3min, obtain clay Powder；
2) after 1% Sodium Polyacrylate of its weight being mixed into clay powder, it is sent into dry granulating machine be humidified and makes Grain obtains the powder that moisture content is 15%；
3) by powder drying to moisture content for 7% to get.
Embodiment 3
1) it is by weight 5 to take eastern mud and western mud：5 are mixed to get Nixing pottery mud, add in SiC of its weight 0.25% Grain, co-grinding to 250 mesh are first placed under 800MHz and handle 22min, be subsequently placed under 150GHz and handle 2min, obtain clay Powder；
2) after 0.8% Sodium Polyacrylate of its weight being mixed into clay powder, it is sent into dry granulating machine and is humidified It is granulated, obtains the powder that moisture content is 14%；
3) by powder drying to moisture content for 6.5% to get.
Embodiment 4
1) it is by weight 6 to take eastern mud and western mud：4 are mixed to get Nixing pottery mud, add in SiC of its weight 0.1% Grain, co-grinding to 200 mesh are first placed under 1000MHz and handle 20min, be subsequently placed under 200GHz and handle 1min, obtain clay Powder；
2) after 0.5% Sodium Polyacrylate of its weight being mixed into clay powder, it is sent into dry granulating machine and is humidified It is granulated, obtains the powder that moisture content is 12%；
3) by powder drying to moisture content for 6% to get.
Reference examples 1
1) it is by weight 6 to take eastern mud and western mud：4 are mixed to get Nixing pottery mud co-grinding to 200 mesh, obtain clay Powder；
2) clay powder is sent into dry granulating machine and carries out humidification granulation, obtain the powder that moisture content is 12%；
3) by powder drying to moisture content for 6% to get.
Reference examples 2
1) it is by weight 6 to take eastern mud and western mud：4 are mixed to get Nixing pottery mud co-grinding to 200 mesh, obtain clay Powder；
2) after 0.5% Sodium Polyacrylate of its weight being mixed into clay powder, it is sent into dry granulating machine and is humidified It is granulated, obtains the powder that moisture content is 12%；
3) by powder drying to moisture content for 6% to get.
Reference examples 3
1) it is by weight 6 to take eastern mud and western mud：4 are mixed to get Nixing pottery mud, add in SiC of its weight 0.1% Grain, co-grinding to 200 mesh are first placed under 1000MHz and handle 20min, be subsequently placed under 200GHz and handle 1min, obtain clay Powder；
2) clay powder is sent into dry granulating machine and carries out humidification granulation, obtain the powder that moisture content is 12%；
3) by powder drying to moisture content for 6% to get.
1st, the blank of embodiment and reference examples is subjected to fluidity testing：
The property such as grain composition, shape, surface texture, the porosity of powder, density of the mobility of powder with forming powder Matter is related, in addition the complex relationships such as adhesion strength and internal friction between particle, the mobility of powder can not use single physical property Value is expressed.This experiment characterizes the mobility of blank with the slamp value of blank.The slamp value of blank is to first pass through Intelligent powder tester detects the tablet angle of blank obtained by each group experiment, angle of repose, the degree of compression, neat degree, then utilizes Carr slamp value methods are calculated.More than to survey quadrinomial parameter full marks be 25 parts, according to the size of parameters value Marking summation is carried out with reference to evaluation table and obtains the slamp value of blank, and specific evaluation method see the table below 1, the results are shown in Table 2.
Table 1
Table 2
Group Slamp value adds up to
Embodiment 1 75.6
Embodiment 2 75.9
Embodiment 3 76.0
Embodiment 4 76.3
Reference examples 1 (original powder) 47.1
Reference examples 2 (original powder+Sodium Polyacrylate) 55.0
Reference examples 3 (original powder+SiC particulate) 71.9
2nd, the green body of embodiment and reference examples is carried out burning till rate test：
Example 1~4 and the blank of reference examples 1~3 are packed into metal die cavity respectively, in positive pressure 25MPa Lower compacting 30s, obtains that the green body (a diameter of 30cm is highly 60cm) of medium-sized vase is 100 each, and above-mentioned green body is placed in 1150 Conventional firing is carried out at DEG C, statistics burns till rate respectively, and concrete outcome see the table below：

Claims (5)

1. improve the technique of Nixing pottery dry powder blank mobility, it is characterised in that：Comprise the following steps：
1) Nixing pottery mud is taken, adds in the SiC particulate of its weight 0.1-0.5%, co-grinding is first placed under 500-1000MHz 20-25min is handled, is subsequently placed under 100-200GHz and handles 1-3min, obtain clay powder；
2) after Sodium Polyacrylate being mixed into clay powder, it is sent into dry granulating machine and carries out humidification granulation, obtaining moisture content is The powder of 12-15%；
3) by powder drying to moisture content for 6~7% to get.
2. the technique according to claim 1 for improving Nixing pottery dry powder blank mobility, it is characterised in that：In step 1), Nixing pottery mud is made of eastern mud and western mud, and weight ratio is 4~6：6~4.
3. the technique according to claim 2 for improving Nixing pottery dry powder blank mobility, it is characterised in that：Eastern mud and western mud Weight ratio be 6：4.
4. the technique according to claim 1 for improving Nixing pottery dry powder blank mobility, it is characterised in that：In step 1), Co-grinding is to 200-300 mesh.
5. the technique according to claim 1 for improving Nixing pottery dry powder blank mobility, it is characterised in that：In step 2), The dosage of Sodium Polyacrylate is the 0.5-1% of clay powder weight.
CN201711390459.7A 2017-12-21 2017-12-21 The technique for improving Nixing pottery dry powder blank mobility Pending CN108046744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711390459.7A CN108046744A (en) 2017-12-21 2017-12-21 The technique for improving Nixing pottery dry powder blank mobility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711390459.7A CN108046744A (en) 2017-12-21 2017-12-21 The technique for improving Nixing pottery dry powder blank mobility

Publications (1)

Publication Number Publication Date
CN108046744A true CN108046744A (en) 2018-05-18

Family

ID=62130982

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711390459.7A Pending CN108046744A (en) 2017-12-21 2017-12-21 The technique for improving Nixing pottery dry powder blank mobility

Country Status (1)

Country Link
CN (1) CN108046744A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105130398A (en) * 2015-09-25 2015-12-09 钦州学院 Dry pressing process for Nixing pottery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105130398A (en) * 2015-09-25 2015-12-09 钦州学院 Dry pressing process for Nixing pottery

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
倪红军等: "《工程材料》", 31 August 2016, 南京：东南大学出版社 *
强亮生等: "《新型功能材料制备技术与分析表征方法》", 30 September 2017, 哈尔滨：哈尔滨工业大学出版社 *
李勇等: "《材料物性学》", 30 April 2001, 南京航空航天学院材料学院 *
杨秋红等: "《无机材料物理化学》", 31 August 2013, 上海：同济大学出版社 *
王明: "《生物起源探索》", 31 October 2015, 中国广播影视出版社 *
王迎军: "《新型材料科学与技术 无机材料卷 中》", 31 October 2016, 广州：华南理工大学出版社 *

Similar Documents

Publication Publication Date Title
CN104150870B (en) A kind of pug of Nixing pottery
CN108101505A (en) The preparation process of Nixing pottery blank
CN107973591A (en) Improve the Nixing pottery dry pressuring forming process of even green body
CN105130398A (en) Dry pressing process for Nixing pottery
CN103482967B (en) Processing craft of new bone china blank and glaze
CN103011148A (en) Method for preparing isotropical graphite
EP2053031A1 (en) Preparation method of a tile with solid pores as decoration and its product
CN106892674A (en) A kind of method for preparing gradient orienting stephanoporate cement based on two-phase pore creating material system freezing molding techniques
CN101041590A (en) Preparation method of solid apertured ornamental porcelain brick and product thereof
CN108046752A (en) The dry method granulation processes of Nixing pottery blank
CN104926280B (en) The method making musical instrument with Nixing pottery
CN105198376A (en) Ceramic paste and method for preparing ceramic products with ceramic paste
CN108046753A (en) A kind of quick Fabrication technique of Nixing pottery
CN201141187Y (en) Stereo aperture decoration porcelain brick
CN108033772A (en) A kind of manufacture craft of Nixing pottery
CN104609846A (en) Soft magnetic ferrite core plastic molding technological method
CN108046744A (en) The technique for improving Nixing pottery dry powder blank mobility
CN108069696A (en) It is suitble to the manufacture craft of dry-pressing formed Nixing pottery blank
CN108059437A (en) The technique for improving Nixing pottery dry powder blank uniformity
CN107973590A (en) Nixing pottery dry pressuring forming process
CN108033770A (en) The dry fabrication technique of Nixing pottery blank
CN104446365A (en) Water permeable brick
CN106495727B (en) The method for preparing porous clay brick using black cotton regur soil
CN112341064B (en) Water-permeable cement concrete block and preparation method thereof
CN104944913A (en) Production method for dry-joint sticking clay of Nixing pottery

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180518

WD01 Invention patent application deemed withdrawn after publication