CN105948709A - Low-cost high-strength dolomite earthen-ware green body and preparation method thereof - Google Patents
Low-cost high-strength dolomite earthen-ware green body and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a low-cost high-strength dolomite earthen-ware green body, which is obtained by sintering a base material and an additive in a polybasic compound flux system, wherein the base material comprises 25-35wt% of elutriation slurry, 10-15wt% of black clay, 0-1wt% of bentonite, 5-6wt% of pyrophyllite, 12-25wt% of low-temperature sand, 3-8wt% of lithium porcelain stone, 5-12wt% of dolomite, 6-12wt% of black talc, 6-10wt% of limestone, 8-15wt% of diopside, 0-5wt% of Yongchun coarse-grained soil, and 0-5wt% of waste porcelain powder; and the additive is a nano organic silicon solution, and the weight percentage of the additive relative to the base material is 1-3%. According to the low-cost high-strength dolomite earthen-ware green body disclosed by the invention, the addition of a polybasic compound flux especially the addition of lithium and the nano organic silicon solution greatly reduces the firing temperature; moreover, as the nano organic silicon solution forms mullite crystals at low temperature and the lithium can easily form a high-strength glass phase during low-temperature firing, the strength of the green body is improved, and the green body can be easily degraded.
Description
Technical field
The present invention relates to ceramic technical field, particularly relate to a kind of low-cost high-strength white clouds greenwave body and preparation method thereof.
Background technology
White clouds pottery, also known as light ceramics, is the environment-friendly ceramic goods generally acknowledged on international market.Lightweight white clouds pottery can be bedyed color glaze colored drawing, can make various type, such as tea tableware, artware etc., and appearance looks elegant, favored by consumers.Especially white clouds pottery is big due to water absorption rate, after broken ceramics is embedded under soil, makes moist degradable, finally it is divided into soil, and other hard-pastes do not have this function, so the soil of underground taken from by white clouds pottery, finally become again soil after completing mission, be belonging to enviroment protective ceramic goods.
But a lot of producers develop strengthening white clouds mud, in order to improve the mechanical strength of white clouds pottery, improve firing temperature (1080 DEG C-1130 DEG C), reach half porcelain, reduce the degradation function of white clouds pottery, and do not meet the purpose of white clouds pottery energy-saving and emission-reduction.The compressive stress also having research patent to propose to increase glaze improves intensity, and firing temperature also reaches 1080 ± 15 DEG C, general glaze is all in compressive stress state, and the method by raising compressive stress raising intensity is unreliable, it is difficult to control, controls the bad intensity that can reduce white clouds pottery.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of raw material is easy to get, cheap, the white clouds greenwave body of product performance index can be ensured, and meet the function that white clouds pottery is degradable, meet the policy that national energy-saving reduces discharging.
The technical solution that the present invention uses is: a kind of low-cost high-strength white clouds greenwave body, this base substrate is fired in multiple elements design dicyandiamide solution with additive by base material and is formed, wherein, described additive is organic silicon nano liquid, the base substrate water absorption rate 18%～22% prepared, rupture strength is 46MPa～52MPa, and whiteness is 68%～71%, and 160 DEG C～20 DEG C of chillings do not split.
Preferably, described base material includes following raw material by weight percentage: eluriate mud 25～35wt%, smolmitza 10～15wt%, bentonite 0～1wt%, pyrophillite 5～6wt%, hypothermia grait 12～25wt%, lithium porcelain stone 3～8wt%, dolomite 5～12wt%, black talc 6～12wt%, limestone 6～10wt%, diopside 8～15wt%, Yongchun slightly soil 0～5wt%, useless porcelain powder 0～5wt%；Described additive is 1～3% relative to the percentage by weight of base material.Described Yongchun slightly soil is mainly made up of the Kaolin of about 70%, the quartz of about 30%, acts the plasticity strengthening product in the present invention.
Preferably, described multiple elements design dicyandiamide solution is K2O-Na2O-Li2O-Al2O3-SiO2Eutectic system and CaO-MgO-Al2O3-SiO2Eutectic system.
Another object of the present invention is to provide the preparation method of a kind of low-cost high-strength white clouds greenwave body, by reducing firing temperature, it is achieved energy-saving and cost-reducing purpose, and greatly reduce CO2The discharge of waste gas, is beneficial to environment protection, promotes the sustainable development of industry production.
Its technical scheme used is the preparation method of a kind of low-cost high-strength white clouds greenwave body, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, obtain low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1020 DEG C～1040 DEG C, and temperature retention time is 10 minutes～15 minutes, and burning till total used time is 6 hours～7 hours.
Preferably, the firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 90min～110min, 600 DEG C at the uniform velocity it are warming up to again in 70min～85min, then in 100min～120min, 900 DEG C at the uniform velocity it are warming up to, then in 85min～95min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 10min～15min at maximum sintering temperature.
Beneficial effects of the present invention:
1, raw material of the present invention is easy to get, cheap, reduce cost of material, and by adding multielement composite fluxing agent in general household porcelain production technological process, the especially addition of elemental lithium and the interpolation of organic silicon nano liquid, Partial Liquid Phase bonds other hard particles, considerably reduces firing temperature to make base substrate to occur in advance, expand the firing range of base substrate, greatly reduce CO2The discharge of waste gas, it is achieved energy-saving and cost-reducing purpose, economic benefit and social benefit are notable; significant to conservation of nature environment, may advantageously facilitate the sustainable development of industry production, the problem simultaneously solving mold high temperature deformation; it is easy to produce and implements, it is easy to Industry Promotion and application.
2, the present invention adds organic silicon nano liquid in blank, eutectic material is formed with other elements in base material, white clouds pottery is made just to produce sintering liquid phase under ultralow temperature, and be full-bodied liquid phase, form mullite crystal at low temperatures, be easily formed, in easy fired process, the glass phase that intensity is the highest in conjunction with the elemental lithium in base material, thus improve the intensity of base substrate, it is greatly improved the sintering qualified rate of white clouds pottery, directly reduces the production cost of white clouds pottery.
3, low-cost and high-performance white clouds of the present invention pottery product properties has had significant raising, water absorption rate 18%～22%, and rupture strength is 46 MPa～52 MPa, whiteness is 68%～71%, 160 DEG C～20 DEG C of chillings do not split, and bury underground and are easily subject to the erosion differentiation degraded of water, environmental protection.
Detailed description of the invention
The present invention provides a kind of low-cost high-strength white clouds greenwave body, base material fire in multiple elements design dicyandiamide solution with additive and form, and wherein, described multiple elements design dicyandiamide solution is K2O-Na2O-Li2O-Al2O3-SiO2Eutectic system and CaO-MgO-Al2O3-SiO2Eutectic system, described additive is organic silicon nano liquid, and described base material includes following raw material: eluriates mud, smolmitza, pyrophillite, hypothermia grait, lithium porcelain stone, dolomite, black talc, limestone, diopside and selectivity and adds a certain amount of bentonite, the most native and useless porcelain powder in Yongchun.
Embodiment one:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 28wt%, smolmitza 12wt%, bentonite 1wt%, pyrophillite 5wt%, hypothermia grait 12wt%, lithium porcelain stone 4wt%, dolomite 10wt%, black talc 6wt%, limestone 8wt%, diopside 9wt%, Yongchun slightly soil 2wt%, useless porcelain powder 3wt%；Described additive is 1% relative to the percentage by weight of base material.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 1%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1020 DEG C, and temperature retention time is 15 minutes, and burning till total used time is 7 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 110min, 600 DEG C at the uniform velocity it are warming up to again in 85min, then in 115min, 900 DEG C at the uniform velocity it are warming up to, then in 95min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 15min at maximum sintering temperature.
Embodiment two:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 30wt%, smolmitza 15wt%, pyrophillite 6wt%, hypothermia grait 13wt%, lithium porcelain stone 5wt%, dolomite 7wt%, black talc 6wt%, limestone 7wt%, diopside 10wt%, Yongchun slightly soil 1wt%.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 2%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1030 DEG C, and temperature retention time is 12 minutes, and burning till total used time is 6.5 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 110min, 600 DEG C at the uniform velocity it are warming up to again in 80min, then in 100min, 900 DEG C at the uniform velocity it are warming up to, then in 88min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 12min at maximum sintering temperature.
Embodiment three:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 32wt%, smolmitza 15wt%, bentonite 1wt%, pyrophillite 5wt%, hypothermia grait 13wt%, lithium porcelain stone 5wt%, dolomite 10wt%, black talc 7wt%, limestone 7wt%, diopside 8wt%；Described additive is 1% relative to the percentage by weight of base material.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 1%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1020 DEG C, and temperature retention time is 14 minutes, and burning till total used time is 7 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 108min, 600 DEG C at the uniform velocity it are warming up to again in 83min, then in 120min, 900 DEG C at the uniform velocity it are warming up to, then in 95min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 14min at maximum sintering temperature.
Embodiment four:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 28wt%, smolmitza 13wt%, bentonite 0.5wt%, pyrophillite 5.5wt%, hypothermia grait 15wt%, lithium porcelain stone 5wt%, dolomite 6wt%, black talc 9wt%, limestone 9wt%, diopside 8wt%, useless porcelain powder 1wt%；Described additive is 1% relative to the percentage by weight of base material.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 3%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1040 DEG C, and temperature retention time is 10 minutes, and burning till total used time is 6 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 90min, 600 DEG C at the uniform velocity it are warming up to again in 75min, then in 100min, 900 DEG C at the uniform velocity it are warming up to, then in 85min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 10min at maximum sintering temperature.
Embodiment five:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 29wt%, smolmitza 14wt%, pyrophillite 5wt%, hypothermia grait 18wt%, lithium porcelain stone 4wt%, dolomite 6wt%, black talc 8wt%, limestone 7wt%, diopside 9wt%；Described additive is 1% relative to the percentage by weight of base material.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 1～3%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1030 DEG C, and temperature retention time is 10 minutes, and burning till total used time is 7 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 110min, 600 DEG C at the uniform velocity it are warming up to again in 85min, then in 120min, 900 DEG C at the uniform velocity it are warming up to, then in 95min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 10min at maximum sintering temperature.
Embodiment six:
In the present embodiment, described base material includes following raw material by weight percentage: eluriate mud 31wt%, smolmitza 12wt%, bentonite 1wt%, pyrophillite 6wt%, hypothermia grait 12wt%, lithium porcelain stone 6wt%, dolomite 12wt%, black talc 6wt%, limestone 8wt%, diopside 8wt%；Described additive is 1% relative to the percentage by weight of base material.Described additive is organic silicon nano liquid, and the percentage by weight of its relative base material is 1～3%.
The preparation method of the low-cost high-strength white clouds greenwave body of the present embodiment, comprises the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, it is thus achieved that low-cost high-strength white clouds pottery finished product, wherein the maximum sintering temperature in sintering process is 1020 DEG C, and temperature retention time is 15 minutes, and burning till total used time is 6 hours.The firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 90min, 600 DEG C at the uniform velocity it are warming up to again in 70min, then in 100min, 900 DEG C at the uniform velocity it are warming up to, then in 85min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 15min at maximum sintering temperature.
The low-cost high-strength white clouds greenwave body that above-mentioned six specific embodiments prepare its performance indications the most after testing are as shown in the table.
Table 1: the performance indications of embodiment of the present invention low-cost and high-performance white clouds pottery product
The ultimate principle of the invention and principal character and advantages of the present invention have more than been shown and described; skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; on the premise of without departing from the invention spirit and scope; the present invention also has various changes and modifications; these changes and improvements both fall within scope of the claimed invention, and claimed scope is defined by appending claims and equivalent thereof.
Claims (8)
1. a low-cost high-strength white clouds greenwave body, it is characterized in that, this base substrate is fired in multiple elements design dicyandiamide solution with additive by base material and is formed, wherein, described additive is organic silicon nano liquid, prepared base substrate water absorption rate 18%～22%, and rupture strength is 46MPa～52MPa, whiteness is 68%～71%, and 160 DEG C～20 DEG C of chillings do not split.
Low-cost high-strength white clouds greenwave body the most according to claim 1, it is characterised in that
Described base material includes following raw material by weight percentage: eluriate mud 25～35wt%, smolmitza 10～15wt%, bentonite 0～1wt%, pyrophillite 5～6wt%, hypothermia grait 12～25wt%, lithium porcelain stone 3～8wt%, dolomite 5～12wt%, black talc 6～12wt%, limestone 6～10wt%, diopside 8～15wt%, Yongchun slightly soil 0～5wt%, useless porcelain powder 0～5wt%；
Described additive is 1～3% relative to the percentage by weight of base material.
Low-cost high-strength white clouds greenwave body the most according to claim 2, it is characterized in that, described base material includes following raw material by weight percentage: eluriate mud 30wt%, smolmitza 15wt%, pyrophillite 6wt%, hypothermia grait 13wt%, lithium porcelain stone 5wt%, dolomite 7wt%, black talc 6wt%, limestone 7wt%, diopside 10wt%, Yongchun slightly soil 1wt%；Described additive is 2% relative to the percentage by weight of base material.
Low-cost high-strength white clouds greenwave body the most according to claim 2, it is characterized in that, described base material includes following raw material by weight percentage: eluriate mud 29wt%, smolmitza 14wt%, pyrophillite 5wt%, hypothermia grait 18wt%, lithium porcelain stone 4wt%, dolomite 6wt%, black talc 8wt%, limestone 7wt%, diopside 9wt%；Described additive is 1% relative to the percentage by weight of base material.
Low-cost high-strength white clouds greenwave body the most according to claim 2, it is characterized in that, described base material includes following raw material by weight percentage: eluriate mud 28wt%, smolmitza 12wt%, bentonite 1wt%, pyrophillite 5wt%, hypothermia grait 12wt%, lithium porcelain stone 4wt%, dolomite 10wt%, black talc 6wt%, limestone 8wt%, diopside 9wt%, Yongchun slightly soil 2wt%, useless porcelain powder 3wt%；Described additive is 1% relative to the percentage by weight of base material.
6. according to the low-cost high-strength white clouds greenwave body described in any one of claim 1 to 5, it is characterised in that described multiple elements design dicyandiamide solution is K2O-Na2O-Li2O-Al2O3-SiO2Eutectic system and CaO-MgO-Al2O3-SiO2Eutectic system.
7. the preparation method of the low-cost high-strength white clouds greenwave body as described in any one of claim 2 to 7, it is characterised in that comprise the following specific steps that:
(1) inferior raw material is carried out rolling, eluriate, sieve, except ferrum, be prepared as eluriating mud；
(2) by weight percentage other raw material goal grinding machine respectively eluriated in mud and described base material that step (1) prepares is milled to mixture particle and crosses 200-250 mesh sieve, after to go out mud standby；
(3) being mixed according to percentage by weight with additive by the mud that step (2) is prepared as, through dehydration, vacuum pugging, old operation, be prepared as qualified white clouds pottery mud bar, standby molding is used；
(4) white clouds prepared pottery mud bar is burnt till through overmolding, glazing, oxidizing atmosphere, obtain low-cost high-strength white clouds pottery finished product, maximum sintering temperature in wherein said sintering process is 1020 DEG C～1040 DEG C, temperature retention time is 10 minutes～15 minutes, and burning till total used time is 6 hours～7 hours.
The preparation method of low-cost high-strength white clouds greenwave body the most according to claim 7, it is characterized in that, the firing temperature of described sintering process controls particularly as follows: be at the uniform velocity warming up to 300 DEG C from room temperature in 90min～110min, 600 DEG C at the uniform velocity it are warming up to again in 70min～85min, then in 100min～120min, 900 DEG C at the uniform velocity it are warming up to, then in 85min～95min, at the uniform velocity it is warming up to maximum sintering temperature, is then incubated 10min～15min at maximum sintering temperature.
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| CN109678461A (en) | 2019-04-26 |
| CN105948709B (en) | 2019-03-12 |
| CN109678461B (en) | 2021-12-10 |
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