CN103145425A - Method for firing household porcelain by microwave high temperature roller kiln - Google Patents
Method for firing household porcelain by microwave high temperature roller kiln Download PDFInfo
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- CN103145425A CN103145425A CN2013100408177A CN201310040817A CN103145425A CN 103145425 A CN103145425 A CN 103145425A CN 2013100408177 A CN2013100408177 A CN 2013100408177A CN 201310040817 A CN201310040817 A CN 201310040817A CN 103145425 A CN103145425 A CN 103145425A
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Abstract
The invention discloses a method for firing household porcelain by a microwave high temperature roller kiln. The method comprises the steps of blank biscuit firing and glaze firing. In an air atmosphere, the microwave high temperature roller kiln is used for heating and firing the blank, and the biscuit and glaze firing for the blank are achieved through control of kiln temperature and firing time. According to the method for firing the household porcelain by the microwave high temperature roller kiln, the biscuit firing and the glaze firing for the household porcelain are achieved through microwave technology, quality of household porcelain products can be improved, a deformation degree is reduced, whiteness of the products is improved, even heating can be achieved in a short time, firing cost is reduced, energy consumption can be reduced by 30% to 50%, and a rate of finished products can be improved by 10%.
Description
Technical field
The present invention relates to a kind of production method of household china, be specifically related to a kind of method that microwave high-temperature roller table klining becomes household china.
Background technology
During domestic porcelain in daily life people contact at most, be also the most familiar porcelain, as tableware, tea set, coffee service, coffee set, drinking utensils etc.In history, domestic porcelain develops from domestic earthenware, again because both have similarity on performance and manufacturing process, so, traditionally they are put together, be referred to as domestic ceramics.It has: 1. be easy to washing and keep clean; 2. Heat stability is good, conduct heat slow; 3. stable chemical nature, durable in use; 4. pore is few, is difficult for suction; 5. colored drawing is rich and varied, and especially high temperature muffle painting and underglaze blue decoration etc. without lead poisoning harm, can courageously use.But the pottery industry is a class high energy consumption, high pollution industry, consumes a large amount of ore resource and the energy during the klining of electricity consumption kiln gas becomes, the waste gas of generation, waste water and dust pollution on the environment and serious, and the rate of burning till is low.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of quality that can improve the household china product, reduces degree of deformation, improves the whiteness of product, and can reach at short notice homogeneous heating, reduces the method that the microwave high-temperature roller table klining of burning till cost becomes household china.
In order to solve the problems of the technologies described above, microwave high-temperature roller table klining provided by the invention becomes the method for household china, and the household china stock is placed in kiln furnitures and burns till at the microwave high-temperature roller table kiln, comprises biscuiting and glaze firing, and the technic index of kiln temperature and firing time is:
1240 ℃～1270 ℃ of biscuiting temperature, soaking time 30min～40min;
1070 ℃～1090 ℃ of temperature of glaze firing, soaking time 10min～20min;
The biscuiting heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to biscuiting temperature and insulation;
The glaze firing heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to temperature of glaze firing and insulation;
The biscuiting speed of cooling: the speed with 6 ℃/min～10 ℃/min is cooled to room temperature;
The glaze firing speed of cooling: the speed with 8 ℃/min～18 ℃/min is cooled to room temperature.
The intensification section Microwave Power Density 28Kw/m of described microwave high-temperature roller table kiln
3～32Kw/m
3, soak section Microwave Power Density 20Kw/m
3～25Kw/m
3Speed of cooling is controlled and is adopted frequency conversion fan, temperature controller and PLC to adopt PID precisely to control.
Described kiln furnitures are the cordierite-mullite kiln furnitures that quality contains 15%～25% silicon carbide.
The microwave high-temperature roller table klining of employing technique scheme becomes the method for household china, biscuiting and two kinds of techniques of glaze firing of comprising stock under air atmosphere, are used the microwave high-temperature roller table kiln that stock is heated and are burnt till, by controlling kiln temperature and firing time, complete biscuiting and glaze firing to stock.The present invention realizes biscuiting and glaze firing to household china by microwave technology, can improve the household china product quality, reduce degree of deformation, improve the whiteness of product, and can reach at short notice homogeneous heating, reduce and burn till cost, can reduce energy consumption 30%-50%, yield rate improves 10%.The microwave firing technology has advantages of that through the development of decades routine techniques is incomparable.After penetrating into material internal, the high-temperature electric magnetic wave can cause repeatedly intensifying and strenuous exercise of material (as dielectric medium) internal freedom or bound charge (corner is son, ion and electronics etc. extremely), in intermolecular generation collision, friction and in-fighting, change micro-wave energy into heat energy, thereby generation high temperature reaches the purpose of burning till.And owing to being the idiosome self-heating, temperature is thought and acted in one and the same way, uniform temperature fields in embryo, and thermal stresses is little, and idiosome is difficult for strain cracking, also is conducive to burning till of the complicated shape large parts of pottery.
The method of Microwave Industry production household china can reduce firing temperature more than 50 ℃, and firing time minimizing 2/3rds, and yield rate can reach more than 98% substantially, has indirectly reduced cost, has improved output.
In sum, the present invention is a kind of quality that can improve the household china product, reduces degree of deformation, improves the whiteness of product, and can reach at short notice homogeneous heating, reduces the method that the microwave high-temperature roller table klining of burning till cost becomes household china.
Embodiment
Microwave high-temperature roller table klining provided by the invention becomes the method for household china, the household china stock is placed in kiln furnitures and burns till at the microwave high-temperature roller table kiln, kiln furnitures are the cordierite-mullite kiln furnitures that quality contains 15%～25% silicon carbide, utilize silicon carbide and microwave coupling ability strong, carry out boosting, comprise biscuiting and glaze firing, the microwave high-temperature roller table kiln adopts microwave to the material direct heating, the intensification section Microwave Power Density 28Kw/m of microwave high-temperature roller table kiln
3～32Kw/m
3, soak section Microwave Power Density 20Kw/m
3～25Kw/m
3Speed of cooling is controlled and is adopted frequency conversion fan, temperature controller and PLC to adopt PID precisely to control, and the technic index of kiln temperature and firing time is:
1240 ℃～1270 ℃ of biscuiting temperature, soaking time 30min～40min;
1070 ℃～1090 ℃ of temperature of glaze firing, soaking time 10min～20min;
The biscuiting heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to biscuiting temperature and insulation;
The glaze firing heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to temperature of glaze firing and insulation;
The biscuiting speed of cooling: the speed with 6 ℃/min～10 ℃/min is cooled to room temperature;
The glaze firing speed of cooling: the speed with 8 ℃/min～18 ℃/min is cooled to room temperature.
The present invention will be further described in detail with regard to embodiment for the below.
Embodiment 1:
1, household china biscuiting stock is placed on the cordierite-mullite kiln furnitures of silicon carbide of any surface finish, sends in the microwave high-temperature roller table kiln with feeder;
2, the speed with 10 ℃/min is warming up to 1250 ℃, and insulation 35min;
3, with stove cooling, 9 ℃/min of cooling rate.
Can directly advance stove glaze firing after the glazing of the present embodiment products obtained therefrom.
Embodiment 2:
1, with being placed on the cordierite-mullite kiln furnitures of bright and clean silicon carbide after embodiment 1 products obtained therefrom glazing, send in the microwave high-temperature roller table kiln with feeder;
2, the speed with 10 ℃/min is warming up to 1070 ℃, and insulation 15min;
3, open the cooling blower cooling at the kiln cooling section, cooling rate is at 13 ℃/min.
The present embodiment products obtained therefrom whiteness is about 70%.
Embodiment 3:
1, with being placed on the cordierite-mullite kiln furnitures of bright and clean silicon carbide after embodiment 1 products obtained therefrom glazing, send in the microwave high-temperature roller table kiln with feeder;
2, the speed with 10 ℃/min is warming up to 1090 ℃, and insulation 20min;
3, open the cooling blower cooling at the kiln cooling section, cooling rate is at 12 ℃/min.
The present embodiment products obtained therefrom whiteness is about 72%.
Embodiment 4:
1, with being placed on the cordierite-mullite supporting plate of bright and clean silicon carbide after embodiment 1 products obtained therefrom glazing, send in the microwave high-temperature roller table kiln with feeder;
2, the speed with 10 ℃/min is warming up to 1080 ℃, and insulation 18min;
3, with stove cooling, 8 ℃/min of cooling rate.
The present embodiment products obtained therefrom whiteness is about 74%.
Embodiment 5:
1, household china biscuiting stock is placed on the cordierite-mullite kiln furnitures of silicon carbide of any surface finish, sends in the microwave high-temperature roller table kiln with feeder;
2, the speed with 8 ℃/min is warming up to 1240 ℃, and insulation 40min;
3, with stove cooling, 6 ℃/min of cooling rate.
Can directly advance stove glaze firing after the glazing of the present embodiment products obtained therefrom.
Embodiment 6:
1, with being placed on the cordierite-mullite kiln furnitures of bright and clean silicon carbide after embodiment 5 products obtained therefrom glazings, send in the microwave high-temperature roller table kiln with feeder;
2, the speed with 8 ℃/min is warming up to 1070 ℃, and insulation 18min;
3, open the cooling blower cooling at the kiln cooling section, cooling rate is at 8 ℃/min.
The present embodiment products obtained therefrom whiteness is about 70%.
Embodiment 7:
1, household china biscuiting stock is placed on the cordierite-mullite kiln furnitures of silicon carbide of any surface finish, sends in the microwave high-temperature roller table kiln with feeder;
2, the speed with 12 ℃/min is warming up to 1270 ℃, and insulation 30min;
3, with stove cooling, 10 ℃/min of cooling rate.
Can directly advance stove glaze firing after the glazing of the present embodiment products obtained therefrom.
Embodiment 8:
1, with being placed on the cordierite-mullite kiln furnitures of bright and clean silicon carbide after embodiment 7 products obtained therefrom glazings, send in the microwave high-temperature roller table kiln with feeder;
2, the speed with 12 ℃/min is warming up to 1070 ℃, and insulation 10min;
3, open the cooling blower cooling at the kiln cooling section, cooling rate is at 18 ℃/min.
The present embodiment products obtained therefrom whiteness is about 70%.
Claims (3)
1. a microwave high-temperature roller table klining becomes the method for household china, and the household china stock is placed in kiln furnitures and burns till at the microwave high-temperature roller table kiln, comprises biscuiting and glaze firing, it is characterized in that: the technic index of kiln temperature and firing time is:
1240 ℃～1270 ℃ of biscuiting temperature, soaking time 30min～40min;
1070 ℃～1090 ℃ of temperature of glaze firing, soaking time 10min～20min;
The biscuiting heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to biscuiting temperature and insulation;
The glaze firing heat-up rate: the speed with 8 ℃/min～12 ℃/min is warming up to temperature of glaze firing and insulation;
The biscuiting speed of cooling: the speed with 6 ℃/min～10 ℃/min is cooled to room temperature;
The glaze firing speed of cooling: the speed with 8 ℃/min～18 ℃/min is cooled to room temperature.
2. microwave high-temperature roller table klining described according to right 1 becomes the method for household china, it is characterized in that: the intensification section Microwave Power Density 28Kw/m of described microwave high-temperature roller table kiln
3～32Kw/m
3, soak section Microwave Power Density 20Kw/m
3～25Kw/m
3Speed of cooling is controlled and is adopted frequency conversion fan, temperature controller and PLC to adopt PID precisely to control.
3. microwave high-temperature roller table klining described according to right 1 or 2 becomes the method for household china, it is characterized in that: described kiln furnitures are the cordierite-mullite kiln furnitures that quality contains 15%～25% silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100408177A CN103145425A (en) | 2013-02-01 | 2013-02-01 | Method for firing household porcelain by microwave high temperature roller kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100408177A CN103145425A (en) | 2013-02-01 | 2013-02-01 | Method for firing household porcelain by microwave high temperature roller kiln |
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|---|---|
| CN103145425A true CN103145425A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100408177A Pending CN103145425A (en) | 2013-02-01 | 2013-02-01 | Method for firing household porcelain by microwave high temperature roller kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032613A (en) * | 2017-04-14 | 2017-08-11 | 景德镇市九段烧瓷厂 | Sapphire blue crystalline glaze |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160029A (en) * | 1995-04-11 | 1997-09-24 | 日本碍子株式会社 | Kiln furniture |
| CN102278879A (en) * | 2011-08-05 | 2011-12-14 | 湖南省中晟热能科技有限公司 | Micro-wave roller kiln |
-
2013
- 2013-02-01 CN CN2013100408177A patent/CN103145425A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160029A (en) * | 1995-04-11 | 1997-09-24 | 日本碍子株式会社 | Kiln furniture |
| CN102278879A (en) * | 2011-08-05 | 2011-12-14 | 湖南省中晟热能科技有限公司 | Micro-wave roller kiln |
Non-Patent Citations (2)
| Title |
|---|
| 张玉龙等: "《实用陶瓷材料手册》", 31 July 2006, 化学工业出版社 * |
| 梁树木: "《日用陶瓷制造技术》", 31 March 1984, 农业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032613A (en) * | 2017-04-14 | 2017-08-11 | 景德镇市九段烧瓷厂 | Sapphire blue crystalline glaze |
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Application publication date: 20130612 |