CN86105759B - Singe-step glazing method with opal ti-zn system at medium or high tmep. - Google Patents
Singe-step glazing method with opal ti-zn system at medium or high tmep. Download PDFInfo
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- CN86105759B CN86105759B CN86105759A CN86105759A CN86105759B CN 86105759 B CN86105759 B CN 86105759B CN 86105759 A CN86105759 A CN 86105759A CN 86105759 A CN86105759 A CN 86105759A CN 86105759 B CN86105759 B CN 86105759B
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- glaze
- opaque glaze
- opaque
- tremolite
- high temperature
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Abstract
The present invention relates to a method for manufacturing opaque glaze of a once-fired Ti-Zn system at a medium temperature or a high temperature, which reserves the advantages of opaque glaze of a Ti system. In a formula of the present invention, TiO2, ZnO, CaO, MgO, P2O5 and CoO are simultaneously introduced; the method overcomes the defect of yellowing at the high temperature. The opaque glaze can be used on once-fired ceramic ware at a temperature of 1200 DEG C to 1300 DEG C so as to form a white opaque glaze layer. The formula of the opaque glaze comprises components of the CaO and the MgO which are introduced by tremolite; the tremolite can be substituted by various raw mineral materials, such as diopside, dolomite, talcum added with calcite, etc. The opaque glaze of the present invention has the advantages of wide raw material sources, simple and convenient processing technology, low cost and strong covering power. When biscuit whiteness is 62.64, glazed biscuit whiteness can be increased to 75.79.
Description
Ti-Zn system opaque glaze provided by the invention belongs to inorganic materials ceramic glaze technical field, is used for the ceramic of high temperature once-firing, can form the extremely strong white opaque glaze layer of opacifying power.
Opaque glaze at present commonly used has:
1, stannic oxide system opaque glaze, opaque effect is good, but stannic oxide costs an arm and a leg, and day is becoming tight in the source.
2, zircon system opaque glaze, zircon is cheap, but hardness is big, and generally needing to grind just has opaque effect preferably more than 100 hours, and the high temperature viscosity of glaze is big, easily produces the glaze plane defect.
3, titanium system opaque glaze, titanium oxide specific refractory power height is a kind of good opacifying agent, is again Powdered industrial chemicals, need not grind during use.The opaque glaze cost made from it is low, and complete processing is easy; Have very strong opacifying power, thin glaze layer can be received opaque effect preferably, and the whiteness height, and glossiness is good.This glaze is widely used on enamel, also is useful on fine pottery ornamental brick, 950～1050 ℃ of glaze firing temperatures.But be used in and easily produce the yellowing defective on the ceramic of high temperature once-firing.Because when temperature surpasses 900 ℃, rutile and anatase octahedrite make glaze become ash, flavescence by white simultaneously by separating out in the melt, influence glaze layer whiteness.When introducing calcium oxide and generate the titanium sphene glaze, temperature is maximum 1000 ± 20 ℃ of titanium sphene quantity, and opaque effect is good, and 1150 ℃ the time, titanium sphene quantity obviously reduces, with temperature rising milkiness deleterious.
It is the ceramic glaze of opacifying agent with titanium dioxide that U.S. Pat 2918384 discloses a kind of, and firing temperature is 950～1200 ℃, forms white glaze, and opaque effect is good.This glaze is refined into frit earlier with after the proportioning raw materials at 1380 ℃, adds clay and water again and is processed into the glaze slip use through ball milling.Its shortcoming is glaze preparation method and complex management, must increase enamel frit makeing equipment, and fuel, power consumption are big.The maturing temperature of glaze is lower than 1200 ℃.
International monopoly WO86/00611 discloses a kind of titanium oxide opaque glaze, can be used for high-temperature firing (1150～1250 ℃) or high temperature and burns till fast, obtains colour stable, the pure opaque glaze of strong covering power.This glaze also need the prepared beforehand frit, and ball milling is made glaze slip and used again.
The objective of the invention is to keep the advantage of titanium system opaque glaze, overcome high temperature yellowing defective again, simultaneously be again to adopt the raw glaze system, form white opaque glaze layer on the ceramic of middle high temperature once-firing, firing temperature is brought up to 1200～1300 ℃.
The chemical constitution of opaque glaze of the present invention is as follows:
SiO
253～67%，Al
2O
38.5～10.3%，K
2O 4.2～5.2%，
Na
2O 1.5～2.0%，Fe
2O
30.25～0.30%，TiO
24～8%，
ZnO 4～8%，CaO 5～7%，MgO 3.8～5.0%，
P
2O
50.5～1.0%，CoO 0.01～0.04%。
This opaque glaze still is opacifying agent with TiO2, introduces CaO, MgO and TiO
2Form stable complex chemical compound, high temperature still has opaque effect preferably.ZnO can improve opacity, gloss and the whiteness of glaze.Introduce TiO in the prescription simultaneously
2, ZnO, CaO, MgO, reached the purpose that suppresses the high temperature yellowing, the white opaque glaze layer of formation under 1200～1300 ℃ of (fire-resistant awl temperature) firing temperatures.Introduce P
2O
5With CoO be in order further to improve glaze layer whiteness.
Plant produced can adopt following technical recipe:
Titanium oxide 4～8%, zinc oxide 4～8%, quartz 15～20%, feldspar 40～50%, the tremolite 20～25%, kaolin 5%, bone ash 1～2%, cobalt oxide 0.01～0.04%.
Introduce CaO and MgO composition with the tremolite in the prescription, also can replace the tremolite with diopside, it is 20～25% that the amount of substituting accounts for the glaze total weight percent.
Rhombspar contains CaCO
3And MgCO
3, identical in the adding glaze with tremolite effect, so can replace the tremolite with the rhombspar that accounts for glaze weight 20～25%.
Can also add 6～13% calcite with the talcum that accounts for glaze weight 6～12% and replace 20～25% the tremolite.
The advantage of this opaque glaze is:
1, with the titanium oxide be the opacifying agent strong covering power, opaque effect is good, can overcome the yellowing defective in 1200～1300 ℃ of firing ranges again, can use on sanitary china, also can be used for the ceramic of other high temperature once-firing.
2, make raw glaze, technology is easy; Cost is low, and price is more cheap than general opaque glaze.
3, glaze quality is good, to obtaining ideal white glaze after the dark biscuit glazing.When the biscuit whiteness is 62.64, whiteness can bring up to 75.79 after the glazing.
Optimum implementation is described below with the Ti-Zn system opaque glaze that is suitable for sanitary china:
Choose various raw materials by the technical recipe requirement, earlier raw mineral materialss such as quartz, feldspar, the tremolite are broken into particle less than 1cm, again various raw materials were mixed the back ball milling 8 hours, 10000-hole sieve surplus＜0.01%, adding water, to make proportion be the 1.5(Beaum) glaze slip, spray glazing imposes on the sanitary china green compact, the glaze layer thickness is 0.4mm, go into kiln after the drying, 1250 ℃ are burnt till.
Claims (12)
1, a kind of is the raw glaze of opacifying agent with the titanium oxide, is used in firing temperature and is on 1200～1300 ℃ the ceramic of once-firing, it is characterized in that the chemical constitution of glaze is:
SiO
253～67%，Al
2O
38.5～10.3%，
Fe
2O
30.25～0.30%，K
2O 4.2～5.2%，
Na
2O 1.5～2.0%，TiO
24～8%，
ZnO 4～8%，CaO 5.0～7.0%，
MgO 3.8～5.0%，P
2O
50.5～1.0%，
CoO 0.01～0.04%。
2, the described glaze in the claim 1 is characterized in that its chemical composition introduced by the mineral in the following technical recipe and industrial chemicals:
Titanium oxide 4～8%, zinc oxide 4～8%, quartz 15～20%,
Feldspar 40～50%, the tremolite 20～25%, kaolin 5%,
Bone ash 1～2%, cobalt oxide 0.01～0.04%.
3,, it is characterized in that by the described glaze of claim 2: can be with diopside that accounts for glaze weight 20～25% or rhombspar, or add 6～13% the calcite tremolite in replacing filling a prescription with 6～12% talcum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86105759A CN86105759B (en) | 1986-07-29 | 1986-07-29 | Singe-step glazing method with opal ti-zn system at medium or high tmep. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86105759A CN86105759B (en) | 1986-07-29 | 1986-07-29 | Singe-step glazing method with opal ti-zn system at medium or high tmep. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86105759A CN86105759A (en) | 1987-03-04 |
| CN86105759B true CN86105759B (en) | 1988-10-26 |
Family
ID=4802943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86105759A Expired CN86105759B (en) | 1986-07-29 | 1986-07-29 | Singe-step glazing method with opal ti-zn system at medium or high tmep. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86105759B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357228C (en) * | 2002-07-24 | 2007-12-26 | 唐山惠达陶瓷(集团)股份有限公司 | Sanitary ware with nano self-cleaning enamel and its making process |
| CN101139167B (en) * | 2007-08-06 | 2010-09-15 | 江阴硅普搪瓷有限公司 | Low-temperature adherence strength highly-firing amplitude broad glass lining bottom glaze |
| CN101973785B (en) * | 2010-09-30 | 2013-01-09 | 西安文理学院 | Ivory ceramic glaze and glazing technology thereof |
| CN101983949B (en) * | 2010-11-24 | 2012-05-30 | 景德镇陶瓷学院 | White opaque glaze for piezoelectric ceramic atomizing sheet and preparation method thereof |
| CN104609900B (en) * | 2015-01-30 | 2016-08-31 | 李宏亮 | A kind of ceramic glaze and using method thereof |
| CN106830684B (en) * | 2017-03-10 | 2020-04-10 | 佛山市大千色釉料有限公司 | Preparation method of reflective heat-insulation ceramic glazed tile |
| CN109293238A (en) * | 2018-10-19 | 2019-02-01 | 景德镇陶瓷大学 | A kind of high additive syenite low cost is without zirconium opaque glaze and its preparation method and application |
| CN110885189B (en) * | 2019-11-13 | 2021-12-03 | 蒙娜丽莎集团股份有限公司 | Zirconium-free mutton tallow glaze and positioning crystal pattern ceramic tile prepared from same |
| CN111499202B (en) * | 2020-06-30 | 2020-11-13 | 蒙娜丽莎集团股份有限公司 | Opaque glaze with high solar light reflectivity and preparation method thereof |
| CN111875414B (en) * | 2020-06-30 | 2022-08-05 | 蒙娜丽莎集团股份有限公司 | High solar light reflectivity ceramic plate and preparation method thereof |
| CN113603363B (en) * | 2021-06-25 | 2023-03-31 | 景德镇陶瓷大学 | Self-cleaning phase-splitting opal glaze and preparation method thereof |
-
1986
- 1986-07-29 CN CN86105759A patent/CN86105759B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86105759A (en) | 1987-03-04 |
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