CN1974487A - Ceramic sintering fluxing agent - Google Patents
Ceramic sintering fluxing agent Download PDFInfo
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- CN1974487A CN1974487A CN 200610165434 CN200610165434A CN1974487A CN 1974487 A CN1974487 A CN 1974487A CN 200610165434 CN200610165434 CN 200610165434 CN 200610165434 A CN200610165434 A CN 200610165434A CN 1974487 A CN1974487 A CN 1974487A
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- fluxing agent
- mass fraction
- flux
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- sintering
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Abstract
The present invention is ceramic sintering fluxing agent, and belongs to the field of building material technology. The method of the present invention is that the first level fluxing agent capable of generating solid solution of lower smelting point is used in fluxing the second level fluxing agent capable of generating solid solution of higher smelting point, the second level fluxing agent is used in fluxing the third level fluxing agent, and so on to complete the sintering of the material at relatively low temperature and lowered power consumption. The ceramic sintering fluxing agent of the present invention is a composite fluxing agent comprising B2O3, K2O+Na2O and CaF2 separately as the first level, the second level and the third level fluxing agent, or comprising Bi2O3, PbO and CaF2, or comprising V2O5, Bi2O3 and LiF+AlF3. It is added into sintering process in the amount of 0.01-0.5 % to lower the sintering temperature by 100 -170 deg.c.
Description
Technical field
The invention belongs to building material field, particularly a kind of ceramic sintering fluxing agent.
Technical background
As the important production department of building material industry, the production process that ceramic burns till has the characteristics of high temperature high energy consumption.The essential method the most that reduces the sintering process energy consumption is exactly to reduce the firing temperature of material significantly.At present, the method that reduces firing temperature mainly contains two kinds: (1) wears into the very small superfine powder of particle diameter with the raw material that burns till, and what have is ground to submicron order or nano level, and the surface in contact that increases considerably raw material is long-pending, improve the total surface energy of raw material, thereby strengthen the sintering process of material; (2) by adding the compound that certain has the single effect of fluxing, generate the low melting point Solid solution, promote that liquid phase generates the purpose that reaches quick densifying with main raw material.But the shortcoming of method (1) is that the preparation difficulty of superfine powder is big, and energy consumption is very high, and cost rises greatly, is difficult to promote the use of; The shortcoming of method (2) is that the simplification compound that adds only can generate the Solid solution with single fusing point with main raw material, some compound and main raw material generate more low-melting Solid solution, can reduce the firing temperature of material significantly, but the price height is unfavorable for large-scale promotion; Some compound price is low, but the fusing point of the Solid solution that generates with main raw material is higher, and the firing temperature amplitude that reduces material is little, and energy-saving effect is not remarkable; Simultaneously, only add the firing temperature that single compound can not fully reduce material, make that the sintering process of material is not optimum.
Summary of the invention
The present invention proposes a kind of novel fluxing method that is intended to reduce the material firing temperature in a creative way for solving the high problem of material sintering process energy consumption---the part method of fluxing step by step.This method refers to the fluxing action that promotes to generate the secondary flux of higher melt solid solution than the one-level flux of low melting point solid solution by generating, so the secondary flux promotes the effect of three grades of fluxs, promote that one by one partial liquid phase generates in the material, material can be finished sintering process at a lower temperature, reaches the purpose that cuts down the consumption of energy.
A kind of ceramic sintering fluxing agent is characterized in that using B
2O
3Be one-level flux, K
2O+Na
2O is secondary flux, CaF
2Be the compound flux of three grades of fluxs, its mass fraction is: B
2O
325%～35%, K
2O+Na
2O 28%～37%, CaF
233%～42%.Sintering process adds 0.1 ‰～5 ‰ compound fusing assistant, and firing temperature has reduced by 100 ℃～150 ℃, has obtained good energy-saving effect.
Use Bi
2O
3For one-level flux, PbO are secondary flux, CaF
2Be that three grades of fluxs form compound flux, its mass fraction is Bi
2O
320%～27%, PbO 40%～49%, CaF
227%～36%.Sintering process adds 0.1 ‰～5 ‰ compound fusing assistant, and firing temperature has reduced by 100 ℃～150 ℃; Because PbO can reduce the high temperature viscosity of glaze, the surface tension and the coefficient of expansion of reduction glaze, has extremely strong color development ability, so add the glossiness that PbO has also increased ceramic surface.
Use V
2O
5Be one-level flux, Bi
2O
3Be secondary flux, LiF+AlF
3Be that three grades of fluxs form compound flux, its mass fraction is V
2O
525%～34%, Bi
2O
335%～46%, LiF+AlF
320%～32%.Sintering process adds 0.1 ‰～5 ‰ compound fusing assistant, and firing temperature has reduced by 100 ℃～160 ℃, has obtained good energy-saving effect.
Use B
2O
3Be one-level flux, Bi
2O
3For secondary flux, NaF are three grades of fluxs, CaF
2For the level Four flux forms compound flux, its mass fraction is B
2O
310%～18%, Bi
2O
345%～58%, NaF 10%～19%, CaF
210%～20%.Sintering process adds 0.1 ‰～5 ‰ compound fusing assistant, and firing temperature has reduced by 120 ℃～160 ℃, has obtained good energy-saving effect.
The basic theory of preferred composite efficient fusing assistant is a phase diagram theory.Seek to form the various components of binary phase diagram, come preferred composite efficient fusing assistant according to following principle with the main raw material matrix:
(1) can cause bigger fusing point temperature drop (as shown in Figure 1), promptly can reduce significantly and burn till temperature of reaction;
(2) binary phase diagram of forming with the main raw material matrix should roughly meet variation tendency as shown in Figure 1.Namely add a small amount of (0.1 ‰～5 ‰) flux and just reduce greatly fusing point (the some O among Fig. 1 answers as close as possible right side); After arriving minimum melting temperature O point, along with the increase Melting point elevation of flux content is slow, namely the flux consumption increases little to the change of fusing point; Fusing point to flux does not have particular requirement.
(3) can satisfy the requirement of equipment etc. in the sintering process;
(4) can improve the performance of burning till product;
(5) mixed economy factor is wished the fusing assistant aboundresources, low price;
(6) must be harmless nontoxic, satisfy the environmental friendliness requirement.
Reduce the local step by step fluxing method of material firing temperature and the optimum principle of compound fusing assistant and have following characteristics:
(1) particle size of burning till raw material is not had remarkable requirement, so only need conventional milling device, do not need expensive superfine powder manufacturing system;
(2) adopt compound fusing assistant, price is low, be convenient to promote;
(3) addition of fusing assistant (0.1 ‰～5 ‰) is few, makes the performances such as intensity, toughness, conduction and heat conduction of burning till product can not be a greater impact because of mixing the ratio height;
(4) compound fusing assistant has environment friendly;
(5) the composite efficient fusing assistant in the present invention is more preferred material sintering processes can both form multistage low melting point Solid solution with main raw material, produces local liquid phase at a lower temperature, thereby reduces firing temperature significantly, reaches energy-efficient effect.Table 1, table 2 have been listed and have been added the temperature that liquid phase appears in preferred fusing assistant, and more present firing temperature (about 900 ℃～1300 ℃) is much lower;
The preferred flux of table 1 and and SiO thereof
2The temperature that liquid phase occurs
| B 2O 3 | V 2O 5 | PbO | K 2O | Na 2O | Bi 2O 3 | Cs 2O | SnO |
| 450 ℃ | 661 ℃ | 720 ℃ | 740 ℃ | 790 ℃ | 800 ℃ | 875 ℃ | 890 ℃ |
The preferred flux of table 2 and and Al thereof
2O
3The temperature that liquid phase occurs
| B 2O 3 | V 2O 5 | NaF+AlF 3 | Bi 2O 3 | PbO | NaF | LiF+AlF 3 |
| 470 ℃ | 640 ℃ | 770 ℃ | 810 ℃ | 865 ℃ | 950 ℃ | 970 ℃ |
Description of drawings
The binary phase diagram synoptic diagram of Fig. 1 ideal fusing assistant and matrix composition
Embodiment
1. ceramic sintering fluxing agent contains mass fraction and is 35% B
2O
3, mass fraction is 30% K
2O+Na
2O, mass fraction are 35% CaF
2
2. ceramic sintering fluxing agent contains mass fraction and is 25% B
2O
3, mass fraction is 35% K
2O+Na
2O, mass fraction are 40% CaF
2
3. ceramic sintering fluxing agent contains mass fraction and is 30% B
2O
3, mass fraction is 28% K
2O+Na
2O, mass fraction are 42% CaF
2
4. ceramic sintering fluxing agent contains mass fraction and is 24% B
2O
3, mass fraction is that 40% PbO, mass fraction are 36% CaF
2
5. ceramic sintering fluxing agent contains mass fraction and is 20% B
2O
3, mass fraction is that 49% PbO, mass fraction are 31% CaF
2
6. ceramic sintering fluxing agent contains mass fraction and is 27% B
2O
3, mass fraction is that 45% PbO, mass fraction are 28% CaF
2
7. ceramic sintering fluxing agent contains mass fraction and is 25% V
2O
5, mass fraction is 43% Bi
2O
3, mass fraction is 32% LiF+AlF
3
8. ceramic sintering fluxing agent contains mass fraction and is 34% V
2O
5, mass fraction is 35% Bi
2O
3, mass fraction is 31% LiF+AlF
3
9. ceramic sintering fluxing agent contains mass fraction and is 34% V
2O
5, mass fraction is 46% Bi
2O
3, mass fraction is 20% LiF+AlF
3
11. a ceramic sintering fluxing agent contains mass fraction and is 30% V
2O
5, mass fraction is 45% Bi
2O
3, mass fraction is 25% LiF+AlF
3
12. a ceramic sintering fluxing agent contains mass fraction and is 18% B
2O
3, mass fraction is 45% Bi
2O
3, mass fraction is that 17% NaF, mass fraction are 20% CaF
2
13. a ceramic sintering fluxing agent contains mass fraction and is 14% B
2O
3, mass fraction is 52% Bi
2O
3, mass fraction is that 19% NaF, mass fraction are 15% CaF
2
14. a ceramic sintering fluxing agent contains mass fraction and is 10% B
2O
3, mass fraction is 58% Bi
2O
3, mass fraction is that 12% NaF, mass fraction are 20% CaF
2
15. a ceramic sintering fluxing agent contains mass fraction and is 18% B
2O
3, mass fraction is 53% Bi
2O
3, mass fraction is that 19% NaF, mass fraction are 10% CaF
2
Claims (4)
1. a ceramic sintering fluxing agent is characterized in that using B
2O
3Be one-level flux, K
2O+Na
2O is secondary flux, CaF
2Be the compound flux of three grades of fluxs, its mass fraction is: B
2O
325%～35%, K
2O+Na
2O 28%～37%, CaF
2233%～42%; Sintering process adds 0.1 ‰～5 ‰ compound flux.
2. a ceramic sintering fluxing agent is characterized in that using Bi
2O
3For one-level flux, PbO are secondary flux, CaF
2Be that three grades of fluxs form compound flux, its mass fraction is Bi
2O
320%～27%, PbO 40%～49%, CaF
227%～36%; Sintering process adds 0.1 ‰～5 ‰ compound flux.
3. a ceramic sintering fluxing agent is characterized in that using V
2O
5Be one-level flux, Bi
2O
3Be secondary flux, LiF+AlF
3Be that three grades of fluxs form compound flux, its mass fraction is V
2O
525%～34%, Bi
2O
335%～46%, LiF+AlF
320%～32%; Sintering process adds 0.1 ‰～5 ‰ compound flux.
4. a ceramic sintering fluxing agent is characterized in that using B
2O
3Be one-level flux, Bi
2O
3For secondary flux, NaF are three grades of fluxs, CaF
2For the level Four flux forms compound flux, its mass fraction is B
2O
310%～18%, Bi
2O
345%～58%, NaF10%～19%, CaF
210%～20%; Sintering process adds 0.1 ‰～5 ‰ compound flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101654342A CN100406410C (en) | 2006-12-20 | 2006-12-20 | Ceramic sintering fluxing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101654342A CN100406410C (en) | 2006-12-20 | 2006-12-20 | Ceramic sintering fluxing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1974487A true CN1974487A (en) | 2007-06-06 |
| CN100406410C CN100406410C (en) | 2008-07-30 |
Family
ID=38124882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101654342A Expired - Fee Related CN100406410C (en) | 2006-12-20 | 2006-12-20 | Ceramic sintering fluxing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100406410C (en) |
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| CN102701794A (en) * | 2012-06-19 | 2012-10-03 | 卡罗比亚釉料（昆山）有限公司 | Aid capable of increasing compactness of glaze surface |
| CN102701793A (en) * | 2012-06-19 | 2012-10-03 | 卡罗比亚釉料（昆山）有限公司 | Lead-free aid capable of increasing smoothness of glaze surface |
| CN102731157A (en) * | 2012-06-14 | 2012-10-17 | 卡罗比亚釉料（昆山）有限公司 | Lead-containing assistant of frit used for preparation of ceramics |
| CN103011765A (en) * | 2012-12-25 | 2013-04-03 | 青岛科技大学 | Flux system for sintering ceramic body in liquid phase and preparation method thereof |
| CN106082958A (en) * | 2016-06-22 | 2016-11-09 | 徐晓 | A kind of preparation method of low grade fever's glazed tiles additive |
| CN106116453A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing the clay standby low grade fever's glazed tiles of Guangxi White |
| CN106116449A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing rare-earth tailing to prepare low grade fever's glazed tiles |
| CN106116480A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing red mud to prepare low grade fever's glazed tiles |
| CN106116481A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing Pb-Zn-Ag ore mine tailing to prepare low grade fever's glazed tiles |
| CN106116463A (en) * | 2016-06-22 | 2016-11-16 | 徐晓 | The preparation method of low grade fever's glazed tiles additive |
| CN106905970A (en) * | 2017-03-14 | 2017-06-30 | 河北利福光电技术有限公司 | A kind of composite assistants for preparing uniform bulky grain YAG fluorescent powder and method and bulky grain YAG fluorescent powder |
| CN107399978A (en) * | 2017-08-02 | 2017-11-28 | 嵊州市万智网络科技有限公司 | A kind of acid/alkali-corrosion-resistant building block and preparation method thereof |
| WO2018186729A1 (en) | 2017-04-05 | 2018-10-11 | Nanomateriales Sa De Cv | Method for the preparation of nanometric metal oxide additives that reduce sintering temperature and/or increase productivity in the manufacture of ceramic pieces, improving mechanical properties without affecting the vitrification properties of ceramic bodies, tiles or coatings |
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| RU2240907C1 (en) * | 2003-05-14 | 2004-11-27 | Волобуев Юрий Сергеевич | Ceramic flux for automatic welding and surfacing |
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- 2006-12-20 CN CNB2006101654342A patent/CN100406410C/en not_active Expired - Fee Related
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| CN102731157A (en) * | 2012-06-14 | 2012-10-17 | 卡罗比亚釉料（昆山）有限公司 | Lead-containing assistant of frit used for preparation of ceramics |
| CN102701793A (en) * | 2012-06-19 | 2012-10-03 | 卡罗比亚釉料（昆山）有限公司 | Lead-free aid capable of increasing smoothness of glaze surface |
| CN102701794A (en) * | 2012-06-19 | 2012-10-03 | 卡罗比亚釉料（昆山）有限公司 | Aid capable of increasing compactness of glaze surface |
| CN103011765A (en) * | 2012-12-25 | 2013-04-03 | 青岛科技大学 | Flux system for sintering ceramic body in liquid phase and preparation method thereof |
| CN106116481A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing Pb-Zn-Ag ore mine tailing to prepare low grade fever's glazed tiles |
| CN106116453A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing the clay standby low grade fever's glazed tiles of Guangxi White |
| CN106116449A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing rare-earth tailing to prepare low grade fever's glazed tiles |
| CN106116480A (en) * | 2016-06-21 | 2016-11-16 | 宋利琴 | A kind of method utilizing red mud to prepare low grade fever's glazed tiles |
| CN106082958A (en) * | 2016-06-22 | 2016-11-09 | 徐晓 | A kind of preparation method of low grade fever's glazed tiles additive |
| CN106116463A (en) * | 2016-06-22 | 2016-11-16 | 徐晓 | The preparation method of low grade fever's glazed tiles additive |
| CN106905970A (en) * | 2017-03-14 | 2017-06-30 | 河北利福光电技术有限公司 | A kind of composite assistants for preparing uniform bulky grain YAG fluorescent powder and method and bulky grain YAG fluorescent powder |
| WO2018186729A1 (en) | 2017-04-05 | 2018-10-11 | Nanomateriales Sa De Cv | Method for the preparation of nanometric metal oxide additives that reduce sintering temperature and/or increase productivity in the manufacture of ceramic pieces, improving mechanical properties without affecting the vitrification properties of ceramic bodies, tiles or coatings |
| CN107399978A (en) * | 2017-08-02 | 2017-11-28 | 嵊州市万智网络科技有限公司 | A kind of acid/alkali-corrosion-resistant building block and preparation method thereof |
| CN109859878A (en) * | 2019-02-22 | 2019-06-07 | 肇庆市辰业电子有限公司 | A kind of 5G base of ceramic filter high q-factor electrode silver plasm and preparation method thereof |
| CN114874005A (en) * | 2022-06-10 | 2022-08-09 | 安徽理工大学 | Temperature-stable magnesium titanate base microwave dielectric composite ceramic and preparation method thereof |
| CN115353378A (en) * | 2022-10-18 | 2022-11-18 | 佛山市东鹏陶瓷有限公司 | Ultralow-temperature environment-friendly porcelain tile green body and preparation method thereof |
| CN115353378B (en) * | 2022-10-18 | 2023-02-07 | 佛山市东鹏陶瓷有限公司 | Ultralow-temperature environment-friendly porcelain tile green body and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100406410C (en) | 2008-07-30 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing All-Kcal Energy Technology Co., Ltd. Assignor: University of Science and Technology Beijing Contract fulfillment period: 2009.4.3 to 2014.4.2 contract change Contract record no.: 2009990000315 Denomination of invention: Ceramic sintering fluxing agent Granted publication date: 20080730 License type: Exclusive license Record date: 2009.4.15 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.3 TO 2014.4.2; CHANGE OF CONTRACT Name of requester: BEIJING WALKER ENERGY SCIENCE + TECHNOLOGY CO., LT Effective date: 20090415 |
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Granted publication date: 20080730 Termination date: 20101220 |