CN1872785A - New type bone china, and producing method - Google Patents

New type bone china, and producing method Download PDF

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Publication number
CN1872785A
CN1872785A CN 200610031882 CN200610031882A CN1872785A CN 1872785 A CN1872785 A CN 1872785A CN 200610031882 CN200610031882 CN 200610031882 CN 200610031882 A CN200610031882 A CN 200610031882A CN 1872785 A CN1872785 A CN 1872785A
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China
Prior art keywords
porcelain
crystalline phase
new type
bone
bone china
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CN 200610031882
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CN100340522C (en
Inventor
林迪辉
周孝忠
周胜武
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XIANFEN CERAMICS IND CO Ltd HUNAN
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XIANFEN CERAMICS IND CO Ltd HUNAN
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Abstract

This invention relates to a method for manufacturing new type bone porcelain. The bone porcelain is composed of: SiO2 50-60 wt.%, Al2O3 20-30 wt.%, P2O5 1.8-3.5 wt.%, CaO 2-5 wt.%, MgO 0.2-0.5 wt.%, K2O and Na2O 3-5 wt.%. The crystal phase content is 50-70 wt. % in the porcelain body. The main crystal phase is mullite, and the minor crystal phases are beta-Ca3 (PO4)2 and anorthite. The bone porcelain is manufactured from: bone ashes 5-10 wt.%, Al powder 5-10 wt.%, kaolin 25-35 wt.%, and porcelain stone 45-60 wt.%. The bone porcelain has such advantages as good appearance, thin external wall, light weight, good light transmittance and good thermal stability. The title method has such advantages as low bon ashes addition, wide sintering range, high quality goods rate, low manufacturing cost and wide raw material resources, and is suitable for mass production.

Description

New type bone china and production method thereof
Technical field
The invention belongs to the ceramic technology field, relate to a kind of new type bone china and production method thereof.
Background technology
Bone china is universally acknowledged a kind of high-grade porcelain, have the porcelain exquisiteness, lubricated, carcass is thin, in light weight, characteristics such as light transmission are arranged preferably, but because bone china is flux with the bone ash, glassy phase content is quite high, and there is following problem in its production technique: 1, the poor heat stability of product.2, because composition existing structure in burning till base substrate of bone china is in the eutectic point part near tricalcium phosphate, lime feldspar and silicic acid mutually, liquid content is many, and reaction is violent, therefore is easy to generate distortion, should take to detain the burning mode, existing maturation process can only adopt twice firing process of glaze firing after the first biscuiting, sintering range is narrow, burns till to be difficult to control, and the percentage of A-class goods is lower, energy dissipation is big, the production cost height.3, starting material such as bone ash lack.Therefore bone china is not large-scale as yet produces and uses, and price is very high, unpopular universal use.Chinese patent CN95112612.1 discloses a kind of " strengthened bone china " patent application on July 2nd, 1997, and this patent is still made flux with bone ash, and only the consumption with bone ash is reduced to about 20%.The crystalline phase amount accounts for 50~70% (weight percents), quartzy crystal grain less than 25 μ m in the porcelain body, and main crystalline phase is a α-Fang Shiying, SiO 2Composition is introduced with quartzy and fused silica powder, this invention mainly is by using fused silica powder to improve thermostability, utilizing the wollastonite crystal to be needle-like in the porcelain base interweaves, to improve the physical strength of porcelain, though this patent energy once-firing, still have following defective: 1, through implementing proof, its main raw material bone ash still needs about 20%, could realize the described effect of this patent, a unresolved raw material supply difficult problem; Though 2, Shi Ying use helps improving thermostability, and is too small as particle, influential to the transparency of porcelain, the excessive physical strength that then reduces; 3, in proportioning raw materials, lack the raw material that can play the skeleton supporting role, unresolved problem of in sintering process, being out of shape, the percentage of A-class goods is too low, production cost height, the economic feasibility of no industrialized production; 4, firing range is narrow, reason is that prescription composition formed structure when burning till base substrate of its bone china is in the eutectic point part near tricalcium phosphate, lime feldspar and silicic acid mutually, liquid content is many, and liquid phase reaction is violent when generating, and is easy to generate distortion, gives birth to defectives such as burning overdoes.Therefore, this patent does not solve bone china at all and moves towards the existing poor heat stability of ordinary consumer, raw material is few and cost is high problem by high-grade porcelain, does not form the required maturation process of industrialized production of once-firing as yet, needs further to improve.
Summary of the invention
The object of the present invention is to provide a kind of new type bone china, it both had traditional china exquisiteness, lubricated, carcass is thin, in light weight, the advantage of light transmission is preferably arranged, and is the same with pate dure again durable in use, Heat stability is good; Another object of the present invention is to provide a kind of production method of new type bone china, its energy once-firing has advantages such as the bone ash consumption is low, firing range is wide, the percentage of A-class goods reaches more than 80 percent, production cost is low, abundant raw materials, energy large-scale industrial production.
Realize that purpose technical scheme of the present invention is:
A kind of new type bone china contains SiO in the base substrate Chemical Composition 2, Al 2O 3, P 2O 5, CaO, MgO, K 2O, Na 2O etc., the content (ratio of weight) of main chemical in the porcelain base is: SiO 2: 50~60%, Al 2O 3: 20~30%, P 2O 5: 1.8~3.5%, CaO:2~5%, MgO:0.2~0.5%, K 2O+Na 2O:3~5%, the crystalline phase amount accounts for 50~70% (weight percents) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar.
As to further improvement of the present invention, also contain the feldspar glass that generates through pyroreaction by potassium, na oxide in the described porcelain base substrate, account for 28~48% (weight percents).
The production method of new type bone china is characterized in that: the raw mineral materials compositing range of porcelain base is a following weight per-cent:
Bone ash: 5~10%, aluminium powder: 5~10%, kaolin: 25~35%, porcelain stone: 45~60%.
As to further improvement of the present invention, the effective size of grain of 99.99% (weight percent) of used raw mineral materials is at 10~25 μ m, and firing temperature is 1230 ℃~1300 ℃, burns till in the oxydizing flame.
Beneficial effect of the present invention is:
1, adds a certain amount of aluminium powder, the main crystalline phase that makes generation is the mullite crystalline phase, because mullite crystal is acicular structure in the porcelain base, can significantly improve the physical strength and the thermal stability of porcelain, in sintering process, play simultaneously skeleton function, reduce firing deformation,, help the raising of the percentage of A-class goods for once-firing creates conditions.
2, quartzy composition is introduced with porcelain stone in the raw-material selection, and porcelain stone is decomposed mineral substance, is the mud shape, and the particle of itself is moderate, avoid quartzy in crushing process granularity too small and influence transparency, the excessive problem that influences intensity of granularity.Can improve simultaneously the porcelain and the fine and smooth sense of porcelain, the porcelain stone ore reserve are abundant, cost is low, do not need special processing, aboundresources.Soft kaolin and porcelain stone etc. are the raw material of easy pulverizing, can guarantee that the pug particle meets the requirements, the transparency of porcelain is improved, according to discovering: quartz in the base substrate and feldspar granularity transparence when 10~25um is the highest, introduce kaolin simultaneously as tackiness agent, kaolinic Chemical Composition is formed (weight percent) SiO 2: 45~60%, Al 2O 3: 28~40%, CaO:0.2~1%, MgO:0~0.5%, K 2O:1~3%, Na 2O:0.2~1%, burning are lost: 10~15%.Its fineness is, specific surface area>1000tmg, and the porcelain stone Chemical Composition consists of: SiO 2: 60~75%, Al 2O 3: 15~25%, K 2O+Na 2O:4~10%, burning are lost: 2~6%.Kaolin increases the plasticity-and the green strength of pug, is convenient to operation and improves billet yield.Make base substrate be not limited to button burning mode, for once-firing creates conditions, porcelain stone reduces firing temperature, and it is 1230 ℃~1300 ℃ that firing range is widened, and can adopt the oxydizing flame once-firing.Solve the economic feasibility problem of bone china single firing process industrialized production, can save a large amount of energy.
3, because contain flux material such as potassium, sodium in the porcelain stone, in high temperature, form glassy phase, substitute the partly effect of bone ash, reduce the bone ash consumption greatly, improve the light transmission of porcelain.Bone ash only is 5~10% as fusing assistant, solves the rare problem of raw material; There is not bone ash violent because of potassium, albite in pyroreaction simultaneously, the problem on deformation in the sintering process of minimizing porcelain body.
After tested, bone china of the present invention, thermostability meets national daily-use fine inspecting standard, thermostability is not split for 180 ℃~20 ℃, resistance to impact shock is that 3.2cmkg/cm2 and folding strength are 1600kg/cm2, and These parameters all is higher than bone china, and particularly ultimate compression strength 4200 is kg/cm2, be better than bone china, and its acid-and base-resisting performance is compared with bone china and is greatly improved.
Embodiment
Embodiment 1:
Batching: bone ash: kaolin 10%: porcelain stone 30%: aluminium powder 52%: 8% (weight percent).Above-mentioned raw materials is prepared burden, ball milling, sieved, dehydration, pugging, moulding, glazing, burns till (1230 ℃~1280 ℃ of firing temperatures, oxydizing flame burns till), just can obtain that light transmission is good, intensity, thermostability is good, glaze is smooth, pure white bone china, after testing, the base substrate chemical constitution is: SiO2 54.5% Al2O3 26.3% P2O5 3.5% CaO 4.8% MgO 0.3%K2O+Na2O 3.6% burns and loses 7%, the crystalline phase amount accounts for 60% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass accounts for 31% (weight percent).
Embodiment 2:
Batching: bone ash: kaolin 6%: porcelain stone 25%: aluminium powder 60%: 9% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1240 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO2 56.2Al2O3 28.5% P2O5 2.1% CaO 2.9% MgO 0.2% K2O+Na2O 4.2% burns and loses 5.9%, the crystalline phase amount accounts for 65% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 32% (weight percent).
Embodiment 3:
Batching: bone ash: kaolin 8%: porcelain stone 28%: aluminium powder 55%: 9% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1240 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO255.3% Al2O3 27% P2O5 2.8% CaO 3.9% MgO 0.4% K2O+Na2O 3.9% burns and loses 6.7%.The crystalline phase amount accounts for 64% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 34% (weight percent).
Embodiment 4:
Batching: bone ash: kaolin 10%: porcelain stone 35%: aluminium powder 45%: 10% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1240 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO2 50,%Al,2O3 30% P2O5 3.5%CaO 5% MgO 0.5% K2O+Na2O 3% burns and loses 8%.The crystalline phase amount is occupied 70% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 28% (weight percent).
Embodiment 5:
Batching: bone ash: kaolin 5%: porcelain stone 25%: aluminium powder 60%: 10% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1230 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO2 60,%Al,2O3 25.5% P2O5 1.8% CaO 2% MgO 0.2% K2O+Na2O 5% burns and loses 5.5%.The crystalline phase amount accounts for 60% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 38% (weight percent).
Embodiment 6:
Batching: bone ash: kaolin 7%: porcelain stone 30%: aluminium powder 55%: 8% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1230 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO2 55.5%Al2O3 26.8% P2O5 2.5% CaO 3.5%MgO 0.3% K2O+Na2O 3.9% burns and loses 7.5%.The crystalline phase amount accounts for 61% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 36% (weight percent).
Embodiment 7:
Batching: bone ash: kaolin 10%: porcelain stone 25%: aluminium powder 60%: 5% (weight percent).Press the technological process described in the embodiment 1, firing temperature is 1230 ℃~1300 ℃.After testing, the base substrate chemical constitution is: SiO2 60,%Al,2O3 20% P2O5 3.5% CaO 5% MgO 0.5% K2O+Na2O 5% burns and loses 6%.The crystalline phase amount accounts for 50% (weight percent) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4O) 2, lime feldspar, feldspar glass account for 48% (weight percent).
The present invention adds a certain amount of aluminium powder including but not limited to above-mentioned embodiment as long as adopted, and the main crystalline phase that makes generation is the crystal phase structure form of mullite crystalline phase, promptly belongs to protection scope of the present invention.

Claims (4)

1, a kind of new type bone china is characterized in that: contain SiO in the base substrate Chemical Composition 2, Al 2O 3, P 2O 5, CaO, MgO, K 2O, Na 2O etc., the content (ratio of weight) of main chemical in the porcelain base is: SiO 2: 50~60%, Al 2O 3: 20~30%, P 2O 5: 1.8~3.5%, CaO:2~5%, MgO:0.2~0.5%, K 2O+Na 2O:3~5%, the crystalline phase amount accounts for 50~70% (weight percents) in the porcelain body, and main crystalline phase is that mullite, less important crystalline phase are β-Ca 3(PO 4CO) 2, lime feldspar.
2, new type bone china according to claim 1 is characterized in that: also contain the feldspar glass that is generated through pyroreaction by potassium, na oxide in the described base substrate, account for 28~48% (weight percents).
3, a kind of production method of new type bone china as claimed in claim 1 is characterized in that: the raw mineral materials compositing range of porcelain base is a following weight per-cent:
Bone ash: 5~10%, aluminium powder: 5~10%, kaolin: 25~35%, porcelain stone: 45~60%.
4, the production method of new type bone china according to claim 3 is characterized in that: the effective size of grain of 99.99% (weight percent) of used raw mineral materials is at 10~25 μ m, and firing temperature is 1230 ℃~1300 ℃, burns till in the oxydizing flame.
CNB2006100318823A 2006-06-26 2006-06-26 New type bone china, and producing method Expired - Fee Related CN100340522C (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891455A (en) * 2010-07-08 2010-11-24 景德镇陶瓷学院 Middle-low temperature sintered fine bone china and production method thereof
CN101337807B (en) * 2008-08-19 2011-06-08 贾培录 Leadless bone porcelain and method for preparing same
CN103011763A (en) * 2012-11-28 2013-04-03 应县优尊陶瓷有限责任公司 Process flow for bone-china in-glaze decoration
CN102020460B (en) * 2009-09-17 2013-04-24 福建省德化真泰尔陶瓷有限公司 High-whiteness strengthened low-temperature fired daily fine porcelain and manufacturing method thereof
CN102020459B (en) * 2009-09-17 2013-05-01 福建省德化真泰尔陶瓷有限公司 Feldspar-free ecological daily fine porcelain and manufacturing method thereof
CN107619262A (en) * 2017-08-01 2018-01-23 常州彤骉贸易有限公司 A kind of Bone China and preparation method thereof
CN108002804A (en) * 2017-11-20 2018-05-08 喀左御成紫陶制品有限公司 Novel bone porcelain
CN108793957A (en) * 2018-07-10 2018-11-13 重庆锦晖陶瓷有限公司 Bottle strengthens china embryo material and is made the preparation process of bottle of the embryo material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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CN1019481B (en) * 1989-03-18 1992-12-16 唐山市陶瓷工业公司第一瓷厂 Soft bone-ask porcelain and its making method
CN1072916A (en) * 1992-11-20 1993-06-09 国营四川省汉源县瓷厂 Utilize phosphatic rock to produce the processing method of bone china
CN1067357C (en) * 1995-12-29 2001-06-20 邱林 Strengthened bone china
CN1210833A (en) * 1998-08-23 1999-03-17 河北华玉股份有限公司 New bone porcelain and its producing method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101337807B (en) * 2008-08-19 2011-06-08 贾培录 Leadless bone porcelain and method for preparing same
CN102020459B (en) * 2009-09-17 2013-05-01 福建省德化真泰尔陶瓷有限公司 Feldspar-free ecological daily fine porcelain and manufacturing method thereof
CN102020460B (en) * 2009-09-17 2013-04-24 福建省德化真泰尔陶瓷有限公司 High-whiteness strengthened low-temperature fired daily fine porcelain and manufacturing method thereof
WO2012003792A1 (en) * 2010-07-08 2012-01-12 景德镇陶瓷学院 Medium-low temperature sintered fine bone china and manufacturing method thereof
CN101891455B (en) * 2010-07-08 2012-07-18 景德镇陶瓷学院 Middle-low temperature sintered fine bone china and production method thereof
GB2494568A (en) * 2010-07-08 2013-03-13 Jingdezhen Ceramic Inst Medium-low temperature sintered fine bone china and manufacturng method thereof
GB2494568B (en) * 2010-07-08 2017-08-02 Jingdezhen Ceram Inst A fine bone china sintered at intermediate temperature and its production method
CN101891455A (en) * 2010-07-08 2010-11-24 景德镇陶瓷学院 Middle-low temperature sintered fine bone china and production method thereof
CN103011763A (en) * 2012-11-28 2013-04-03 应县优尊陶瓷有限责任公司 Process flow for bone-china in-glaze decoration
CN107619262A (en) * 2017-08-01 2018-01-23 常州彤骉贸易有限公司 A kind of Bone China and preparation method thereof
CN107619262B (en) * 2017-08-01 2020-08-14 德化县凯得利工艺品有限公司 Bone china and preparation method thereof
CN108002804A (en) * 2017-11-20 2018-05-08 喀左御成紫陶制品有限公司 Novel bone porcelain
CN108793957A (en) * 2018-07-10 2018-11-13 重庆锦晖陶瓷有限公司 Bottle strengthens china embryo material and is made the preparation process of bottle of the embryo material

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