CN102515857A - Leadless ceramic glaze and its preparation method - Google Patents
Leadless ceramic glaze and its preparation method Download PDFInfo
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- CN102515857A CN102515857A CN2011104164806A CN201110416480A CN102515857A CN 102515857 A CN102515857 A CN 102515857A CN 2011104164806 A CN2011104164806 A CN 2011104164806A CN 201110416480 A CN201110416480 A CN 201110416480A CN 102515857 A CN102515857 A CN 102515857A
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- glaze
- ceramic glaze
- lead
- leadless ceramic
- free ceramics
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Abstract
The invention discloses a leadless ceramic glaze and its preparation method. The leadless ceramic glaze contains the following components of: by weight, 60-64% of SiO2, 23-27% of Al2O3, 6-8% of CaO, 0.5-1% of K2O, 0.5-1% of Na2O, 1-3% of Li2O, 2-4% of ZnO, 1-2% of ZrO2 and 1-3% of CeO2. The preparation method of the leadless ceramic glaze comprises the following steps of: mixing the raw materials of the leadless ceramic glaze according to the proportion of the formula, crushing, carrying out wet ball milling until the glaze slip fineness is 0.03-0.05 of a square-opening seive, so as to obtain the leadless ceramic glaze slip, immersing a biscuit into the leadless ceramic glaze slip or pouring the leadless ceramic glaze slip onto the biscuit, drying, placing the biscuit into a kiln, and sintering at 1180-1200 DEG C in an oxygen atmosphere, so as to obtain the leadless ceramic glaze. With the addition of cerium oxide which replaces part of zinc oxide, the leadless ceramic glaze has good glossiness, whiteness and hardness.
Description
Technical field
The invention belongs to the ceramic glaze technical field, be specifically related to a kind of lead-free ceramics glaze and preparation method thereof.
Background technology
Ceramic glaze has material impact to the visual appearance of ceramic.Plumbous oxide is the common composition in the ceramic glaze, and it has bigger activity, can eliminate the gas that produces in the glaze firing, and can produce glossiness preferably, therefore uses plumbiferous glaze generally can make ceramic have good surface appearance.Yet, because lead is a heavy metal elements, can separate out when its content is big, human body is made harm.Western countries require particularly strict to the lead content in the ceramic, restriction has been made in the outlet of ceramic.Therefore, the research of leadless glaze is the focus of ceramic glaze research always.
Those skilled in the art know that an amount of zinc oxide can increase the glossiness of glaze, for unleaded glaze, can add more a large amount of zinc oxide usually, yet when the content of zinc oxide is high, cause glaze thin-skinned easily, shortcoming such as are prone to be scratched.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of lead-free ceramics glaze is provided, said lead-free ceramics glaze has good glossiness, whiteness and hardness.
Another object of the present invention is to provide the preparation method of said lead-free ceramics glaze.
Above-mentioned purpose of the present invention is achieved through following technical scheme:
A kind of lead-free ceramics glaze, form by the component of counting by weight percentage as follows:
SiO
2?60~64%，Al
2O
3?23~27%，CaO?6~8%，K
2O?0.5~1%，Na
2O?0.5~1%，Li
2O?1~3%，ZnO?2~4%，ZrO
2?1~2%，CeO
2?1~3%。
Most preferably, said lead-free ceramics glaze is made up of the component of counting by weight percentage as follows:
SiO
2?62%，Al
2O
3?23%，CaO?6%，K
2O?1%，Na
2O?0.5%，Li
2O?2%，ZnO?2.5%，ZrO
2?1%，CeO
2?2%。
The present invention improves the hardness of product through improving the content of silicon-dioxide in the prescription, in prescription, adds an amount of cerium oxide simultaneously and replaces zinc oxide, makes ceramic glaze keep good glossiness, and the adding of cerium oxide has improved the hardness and the whiteness of product simultaneously.
The feed composition that is adopted can only need make wherein contained compound satisfy said ratio and get final product from potassium felspar sand, kaolin, zinc oxide, zirconium silicate, Quilonum Retard, lime carbonate, quartz, cerium oxide etc.
The preparation method of said lead-free ceramics glaze comprises the steps:
(1) in the component formula ratio each raw materials mix of lead-free ceramics glaze being pulverized, carried out wet ball mill, is that 10000-hole sieve shines surplus to be 0.03 ~ 0.05, promptly to get said lead-free ceramics glaze slip to the glaze slip fineness;
(2) said lead-free ceramics glaze slip is imposed on the biscuit with the mode of soaking glaze or watering glaze, in the kiln of packing into after the drying, in oxidizing atmosphere, fire under 1180 ~ 1200 ℃ and obtain said lead-free ceramics glaze.
Compared with prior art, the present invention has following beneficial effect:
The lead-free ceramics glaze that the present invention passes through has reduced the usage quantity of zinc oxide, has overcome because of zinc oxide causes glaze thin-skinned, shortcoming such as is prone to be scratched; The present invention has added an amount of cerium oxide in the lead-free ceramics glaze formula, make ceramic glaze keep good glossiness, has good hardness and whiteness simultaneously.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explanation, but embodiment does not do any qualification to the present invention.
Embodiment 1 ~ 3
The ceramic glaze prescription of embodiment 1 ~ 3 is as shown in table 1, and numerical value is weight percentage in the table 1:
Table 1
| ? | SiO 2 | Al 2O 3 | CaO | K 2O | Na 2O | Li 2O | ZnO | ZrO 2 | CeO 2 |
| Embodiment 1 | 60 | 25 | 6 | 1 | 0.5 | 2 | 3 | 1 | 1.5 |
| Embodiment 2 | 61 | 23 | 7 | 1 | 1 | 2 | 3 | 1 | 1 |
| Embodiment 3 | 62 | 23 | 6 | 1 | 0.5 | 2 | 2.5 | 1 | 2 |
Press the proportioning in the table 1; Potassium felspar sand, kaolin, zinc oxide, zirconium silicate, quartz, Quilonum Retard, lime carbonate, cerium oxide component are mixed pulverizing respectively; Carrying out wet ball mill, is that 10000-hole sieve shines surplus to be 0.03 ~ 0.05, promptly to get the lead-free ceramics glaze slip of embodiment 1 ~ 3 to the glaze slip fineness.
The lead-free ceramics glaze slip of gained is imposed on the biscuit with the mode of soaking glaze or watering glaze, and in the kiln of packing into after the drying, 1180 ~ 1200 ℃ of following constant temperature is 1 hour in oxidizing atmosphere, and the ceramic of said lead-free ceramics glaze is arranged through 5 hours clinkering zones.
Said ceramic glaze is smooth, and evenly the glaze glossiness is more than 105, and whiteness is more than 75, and the glaze Vickers' hardness is at 650kgf/mm
2More than.
Claims (3)
1. a lead-free ceramics glaze is characterized in that, is made up of the component of counting by weight percentage as follows:
SiO
2?60~64%，Al
2O
3?23~27%，CaO?6~8%，K
2O?0.5~1%，Na
2O?0.5~1%，Li
2O?1~3%，ZnO?2~4%，ZrO
2?1~2%，CeO
2?1~2%。
2. lead-free ceramics glaze according to claim 1 is characterized in that, is made up of the component of counting by weight percentage as follows:
SiO
2?62%，Al
2O
3?23%，CaO?6%，K
2O?1%，Na
2O?0.5%，Li
2O?2%，ZnO?2.5%，ZrO
2?1%，CeO
2?2%。
3. the preparation method of claim 1 or 2 said lead-free ceramics glaze is characterized in that, comprises the steps:
(1) in the component formula ratio each raw materials mix of lead-free ceramics glaze being pulverized, carried out wet ball mill, is that 10000-hole sieve shines surplus to be 0.03 ~ 0.05, promptly to get said lead-free ceramics glaze slip to the glaze slip fineness;
(2) said lead-free ceramics glaze slip is imposed on the biscuit with the mode of soaking glaze or watering glaze, in the kiln of packing into after the drying, in oxidizing atmosphere, fire under 1180 ~ 1200 ℃ and obtain said lead-free ceramics glaze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104164806A CN102515857A (en) | 2011-12-14 | 2011-12-14 | Leadless ceramic glaze and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104164806A CN102515857A (en) | 2011-12-14 | 2011-12-14 | Leadless ceramic glaze and its preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102515857A true CN102515857A (en) | 2012-06-27 |
Family
ID=46287001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104164806A Pending CN102515857A (en) | 2011-12-14 | 2011-12-14 | Leadless ceramic glaze and its preparation method |
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332966A (en) * | 2013-07-02 | 2013-10-02 | 泉州欧米克生态建材科技有限公司 | Preparation method of composite opaque glaze |
| CN107201060A (en) * | 2017-05-19 | 2017-09-26 | 淄博华为颜料有限公司 | Lead-free low-temperature low cobalt ceramic glaze blueing pigment and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1014381A (en) * | 1961-08-22 | 1965-12-22 | Willi Wanie | Process for the production of fired zinc containing coatings on shaped ceramic or metallic substrates |
| CN101012131A (en) * | 2007-02-07 | 2007-08-08 | 湖南泰鑫瓷业有限公司 | Method of manufacturing ice-crystal glaze |
-
2011
- 2011-12-14 CN CN2011104164806A patent/CN102515857A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1014381A (en) * | 1961-08-22 | 1965-12-22 | Willi Wanie | Process for the production of fired zinc containing coatings on shaped ceramic or metallic substrates |
| CN101012131A (en) * | 2007-02-07 | 2007-08-08 | 湖南泰鑫瓷业有限公司 | Method of manufacturing ice-crystal glaze |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332966A (en) * | 2013-07-02 | 2013-10-02 | 泉州欧米克生态建材科技有限公司 | Preparation method of composite opaque glaze |
| CN103332966B (en) * | 2013-07-02 | 2015-01-07 | 泉州欧米克生态建材科技有限公司 | Preparation method of composite opaque glaze |
| CN107201060A (en) * | 2017-05-19 | 2017-09-26 | 淄博华为颜料有限公司 | Lead-free low-temperature low cobalt ceramic glaze blueing pigment and its preparation method and application |
| CN107201060B (en) * | 2017-05-19 | 2019-05-17 | 淄博华为颜料有限公司 | Lead-free low-temperature low cobalt ceramic glaze blueing pigment and its preparation method and application |
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Application publication date: 20120627 |