CN1562870A - Technique for fabricating porcelain under super strength low temperature - Google Patents

Technique for fabricating porcelain under super strength low temperature Download PDF

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Publication number
CN1562870A
CN1562870A CN 200410022152 CN200410022152A CN1562870A CN 1562870 A CN1562870 A CN 1562870A CN 200410022152 CN200410022152 CN 200410022152 CN 200410022152 A CN200410022152 A CN 200410022152A CN 1562870 A CN1562870 A CN 1562870A
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China
Prior art keywords
oxide
glaze
silicon
potassium
sodium
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CN 200410022152
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Chinese (zh)
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CN1281546C (en
Inventor
曹文彪
杨雪梅
金科名
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JINHUI CERAMIC CO Ltd CHONGQING
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JINHUI CERAMIC CO Ltd CHONGQING
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Priority to CN 200410022152 priority Critical patent/CN1281546C/en
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Publication of CN1281546C publication Critical patent/CN1281546C/en
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Abstract

The invention relates to new formula of preform body and frit. Glaze firing them. lower than ceramics firing temp. slightly is used to fire domestic porcelain with stength higher than hard porcelain. The preform body formula is (wt%) silica 50-58, aluminium oxide 30-38, calcium oxide 5-15, magnesium oxide 0-3, potassium oxide 1-6, sodium oxide 0-4. Frit formula is (wt%) silica 55-65, aluminium oxide 10-18, calcium oxide 12-20, magnesium oxide 1-5, sodium oxide 0-3, strontium oxide 1-5, barium oxide 0-3, potassium oxide 0-5, lithium oxide 0-3.

Description

Superpower soft-paste manufacturing technology
Technical field the invention belongs to domestic ceramics manufacturing technology field, and the particularly new formulation of ceramic batch and glaze is with the performance of improving the quality of products, reduce glaze and burn till the porcelain temperature and time, energy efficient reduces cost, can be used widely at ceramic industry.
Background technology household china commonly used has hard-paste and Shi porcelain, and the two key distinction is burnt till the porcelain temperature in blank and glaze formula and glaze.Hard-paste intensity is good, whiteness is high, water-intake rate is low, but glaze burns till the porcelain temperature up to 1330-1350 ℃, and the glaze firing cycle reaches 5.5 hours, and fuel consumption is big, and the glaze firing operation finishes in reducing atmosphere, is unsuitable for the exploitation of color glaze.Though the glaze firing operation of Shi porcelain is finished in oxidizing atmosphere, glaze burns till 1220-1250 ℃ of porcelain temperature, be lower than about 100 ℃ of hard-pastes, but the glaze firing cycle reaches 6 hours, the same fuel consumption that increases, the Shi porcelain products are of poor quality in addition, whiteness is low, water-intake rate is high, and smooth finish is low, acid-alkali-corrosive-resisting and anti-knife and fork are drawn shortcomings such as carving difference, can only list low-grade porcelain in, not appeal to refined taste.
Summary of the invention the objective of the invention is to overcome the deficiency of above-mentioned prior art, select its two advantage, develop rational blank and glaze formula, make its temperature of glaze firing reduce to 1200-1220 ℃, the glaze firing cycle reduces to 4.5 hours, and in oxidizing atmosphere completely, fire and form, be beneficial to colourful color glaze exploitation, be specially adapted to glaze and set about color.The porcelain temperature of burning till the Shi enamel that the present invention compares reduces 10-50 ℃, and the glaze firing cycle shortens 1.5 hours, than the hard-paste glaze burn till the porcelain temperature and reduce 110-130 ℃, the glaze firing cycle shortens 1 hour.Energy efficient 10-30% reduces production costs greatly.Utilization of the present invention successfully burns out the household china that is higher than hard-paste intensity a little less than the temperature of glaze firing of Shi porcelain, so the superpower soft-paste of name.
As everyone knows, ceramic batch is mainly mixed according to different proportionings by raw materials such as feldspar, quartz, kaolin, white clay, aluminium powder, rhombspars, glaze formula is mainly mixed by raw materials such as feldspar, frit, white clay, rhombspar, calcite, triphane, quartz, aluminium powders, the intensity of blank decision product, the class of glaze decision product.The present invention reasonably prescription is that the blank porcelain temperature of will hoping for success is lower, forms fine and close mullite structure, increases physical strength; Glaze requires to generate more glassy phase, and bright in luster, attractive in appearance beautiful, erosion resistance is strong, and anti-knife and fork is drawn quarter, Heat stability is good, unleaded, cadmium stripping.
A kind of superpower soft-paste and the manufacturing technology of the present invention's development, it is characterized in that: glaze burns till 1200-1220 ℃ of porcelain temperature, 4.5 hours glaze firing cycles.
Said blank formulation is mainly by aluminium sesquioxide Al 2O 3, calcium oxide CaO, silicon-dioxide SiO 2Form, and contain a spot of sodium oxide Na 2O, potassium oxide K 2O, magnesium oxide MgO, the weight percent of its Chemical Composition is:
Silicon-dioxide SiO 250-58% magnesium oxide MgO 0-3%
Aluminium sesquioxide Al 2O 330-38% potassium oxide K 2O 1-6%
Calcium oxide CaO 5-15% sodium oxide Na 2O 0-4%
The characteristics of blank formulation of the present invention are: aluminium sesquioxide Al 2O 3Additional proportion is bigger, approaches the formula rate of hard-paste, but has increased the add-on of strong fusing assistant rhombspar, effectively reduce blank and become the porcelain temperature, be beneficial to and form fine and close mullite structure at a lower temperature, guarantee the high 20-50% of hard-paste that product strength compares, water-intake rate is less than 0.1%.
Said glaze formula is to be based upon on the basis of blank formulation, makes its blank and glaze interpenetrate and fuse when sintering, and the two is closely linked, and glaze formula is mainly by calcium oxide CaO, aluminium sesquioxide Al 2O 3, silicon-dioxide SiO 2Form, and contain a spot of potassium oxide K 2O, sodium oxide Na 2O, magnesium oxide MgO, strontium oxide SrO, barium oxide BaO, Lithium Oxide 98min LiO, the weight percent of its Chemical Composition is:
Silicon-dioxide SiO 255-65% strontium oxide SrO 1-5%
Aluminium sesquioxide Al 2O 310-18% barium oxide BaO 0-3%
Calcium oxide CaO 12-20% potassium oxide K 2O 0-5%
Magnesium oxide MgO 1-5% Lithium Oxide 98min LiO 0-3%
Sodium oxide Na 2O 0-3%
The characteristics of glaze formula of the present invention are suitably to increase aluminium sesquioxide Al 2O 3, magnesium oxide MgO proportioning, to improve glaze self hardness, add strontium oxide SrO and barium oxide BaO simultaneously; to reduce vitrification point, promote glaze chromatography crystalline substance, the formation that increases glassy phase; reduce the glaze frictional coefficient, improve thermostability and erosion resistance, guarantee that product is at 1%Na 2CO 3Boil 7 hours glazes in the solution and do not have any variation.
Embodiment
Embodiment 1:
1, following formula rate prepare blank, through stirring, press filtration, slip casing by pressure and roll forming are crude green body again.
Silicon-dioxide SiO 253% magnesium oxide MgO 2%
Aluminium sesquioxide Al 2O 332% potassium oxide K 2O 2%
Calcium oxide CaO 10% sodium oxide Na 2O 1.5%
2, crude green body drying, sand washing are carried out biscuiting under 820 ℃ of temperature, biscuiting temperature and hard-paste, Shi porcelain are identical.Then become biscuit after the biscuiting.
3, prepare glaze by following formula rate
Silicon-dioxide SiO 258% strontium oxide SrO 2%
Aluminium sesquioxide Al 2O 315% barium oxide BaO 1.5%
Calcium oxide CaO 16% potassium oxide K 2O 2%
Magnesium oxide MgO 3% Lithium Oxide 98min Li 2O 1.5%
Sodium oxide Na 2O 1%
4, with the even glazing of glaze on biscuit, under 1200-1220 ℃ of temperature, carry out the glaze Beijing enamelization, glaze firing then is porcelain base or true qualities product after 4.5 hours.
5, as required whether,, then the finished product after the decoration firing through applique.

Claims (2)

1, a kind of superpower soft-paste manufacturing technology, it is characterized in that: glaze burns till 1200-1220 ℃ of porcelain temperature, 4.5 hours glaze firing cycles, said blank formulation mainly is made up of aluminium sesquioxide, calcium oxide, silicon-dioxide, and contain a spot of sodium oxide, potassium oxide, magnesium oxide, its Chemical Composition weight percent is:
Silicon-dioxide SiO 250-58% magnesium oxide MgO 0-3%
Aluminium sesquioxide Al 2O 330-38% potassium oxide K 2O 1-6%
Calcium oxide CaO 5-15% sodium oxide Na 2O 0-4%
2, press the method for claim 1, it is characterized in that: said glaze formula is to be based upon on the basis of blank formulation, make its blank and glaze when sintering, interpenetrate and fuse, the two is closely linked, glaze formula mainly is made up of calcium oxide, aluminium sesquioxide, silicon-dioxide, and contain a spot of potassium oxide, sodium oxide, magnesium oxide, strontium oxide, barium oxide, Lithium Oxide 98min, the weight percent of its Chemical Composition is:
Silicon-dioxide SiO 255-65% strontium oxide SrO 1-5%
Aluminium sesquioxide Al 2O 310-18% barium oxide BaO 0-3%
Calcium oxide CaO 12-20% potassium oxide K 2O 0-5%
Magnesium oxide MgO 1-5% Lithium Oxide 98min Li 2O 0-3%
Sodium oxide Na 2O 0-3%
CN 200410022152 2004-03-25 2004-03-25 Technique for fabricating porcelain under super strength low temperature Expired - Lifetime CN1281546C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410022152 CN1281546C (en) 2004-03-25 2004-03-25 Technique for fabricating porcelain under super strength low temperature

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Application Number Priority Date Filing Date Title
CN 200410022152 CN1281546C (en) 2004-03-25 2004-03-25 Technique for fabricating porcelain under super strength low temperature

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CN1562870A true CN1562870A (en) 2005-01-12
CN1281546C CN1281546C (en) 2006-10-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100355696C (en) * 2005-11-18 2007-12-19 詹振明 Tech. for mfg. multicrystal strengthening porcelain
CN102040374A (en) * 2009-10-19 2011-05-04 泉州坤达礼品有限公司 Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof
CN102924045A (en) * 2012-11-02 2013-02-13 佛山石湾鹰牌陶瓷有限公司 Vitrification ceramic tile, preform body of the vitrification ceramic tile and preparation method of vitrification ceramic tile
CN108585500A (en) * 2018-08-10 2018-09-28 张家港市六福新材料科技有限公司 A kind of preparation method of hydrophobic type composite ceramic enamel
WO2018217180A3 (en) * 2016-11-01 2019-02-14 Kaleseramik Canakkale Kalebodur Seramik Sanayi Anonim Sirketi Ceramic composition
CN109516779A (en) * 2018-12-21 2019-03-26 湖南华联瓷业股份有限公司 A kind of medium temperature crack glaze household china and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100355696C (en) * 2005-11-18 2007-12-19 詹振明 Tech. for mfg. multicrystal strengthening porcelain
CN102040374A (en) * 2009-10-19 2011-05-04 泉州坤达礼品有限公司 Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof
CN102924045A (en) * 2012-11-02 2013-02-13 佛山石湾鹰牌陶瓷有限公司 Vitrification ceramic tile, preform body of the vitrification ceramic tile and preparation method of vitrification ceramic tile
CN102924045B (en) * 2012-11-02 2014-08-27 佛山石湾鹰牌陶瓷有限公司 Vitrification ceramic tile, preform body of the vitrification ceramic tile and preparation method of vitrification ceramic tile
WO2018217180A3 (en) * 2016-11-01 2019-02-14 Kaleseramik Canakkale Kalebodur Seramik Sanayi Anonim Sirketi Ceramic composition
CN108585500A (en) * 2018-08-10 2018-09-28 张家港市六福新材料科技有限公司 A kind of preparation method of hydrophobic type composite ceramic enamel
CN109516779A (en) * 2018-12-21 2019-03-26 湖南华联瓷业股份有限公司 A kind of medium temperature crack glaze household china and preparation method thereof
CN109516779B (en) * 2018-12-21 2021-04-13 湖南华联瓷业股份有限公司 Medium-temperature crack glaze household porcelain and preparation method thereof

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Granted publication date: 20061025