CN109553404A - A kind of super thick foamed ceramic plate and production technology - Google Patents

A kind of super thick foamed ceramic plate and production technology Download PDF

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Publication number
CN109553404A
CN109553404A CN201811552548.1A CN201811552548A CN109553404A CN 109553404 A CN109553404 A CN 109553404A CN 201811552548 A CN201811552548 A CN 201811552548A CN 109553404 A CN109553404 A CN 109553404A
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powder
super thick
foamed ceramic
ceramic plate
raw material
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李海春
朱国峰
邓释禅
祝伟华
刘亮
柯玉
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Jiangxi Pujing New Materials Co Ltd
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Jiangxi Pujing New Materials Co Ltd
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Abstract

The present invention provides a kind of super thick foamed ceramic plate and production technology, belongs to foamed ceramic field technical field, the ingredient of the super thick foamed ceramic plate includes raw material, foaming agent, foam stabilizer and thermal inertia modifying agent；Wherein: the component of the raw material includes 40-60 parts of fluorite tailing, 5-15 parts of potassium feldspar, 10-20 parts of bluestone powder, useless 15-30 parts of porcelain powder；The foaming agent is at least one of silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, potassium nitrate；The foam stabilizer is at least one of borax, boric acid, zinc oxide, barium carbonate；The thermal inertia modifying agent is at least one of high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, glass fibre powder；The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100:0.5-2:1-3:2-10.Super thick foamed ceramic plate of the invention can be directly as building partition materials for wall, and the leftover pieces of unit finished product material are less, for processing large size special-shaped part.

Description

A kind of super thick foamed ceramic plate and production technology
Technical field
The present invention relates to foamed ceramic fields, more particularly, to a kind of materials for wall directly as building partition, reduction The leftover pieces of unit finished product material, the super thick foamed ceramic plate for processing large size special-shaped part and production technology.
Background technique
Foamed ceramic is a kind of using all kinds of raw material mixed foaming agents and modifying agent, melts what foamed obtained by the way that high temperature is soft A kind of ceramic honeycomb material that solid phase is mixed with gas phase has the characteristics that heat preservation, heat-insulated, fire prevention, moisture-proof, lightweight, main to use It is a kind of widely used inorganic non-metallic silicate material in building field and industrial heat-insulation and heat-preservation field.
And there are many technology that the fluorite tailing of foamed ceramic recycles, technique is main are as follows: raw material is closed by grinding After suitable pellet and the mixing of foaming agent foam stabilizer, cloth is carried out in high-temperature resistance die, fabric thickness is according to required product thickness And suitable selection is made, the mold for later completing cloth is sent into progress high temperature sintering foaming in Equipment for Heating Processing and is made, Generally at 900 DEG C -1200 DEG C or so, blowing temperature is affected blowing temperature by raw material type, is needed according to different originals Material type selects different foam process, and makes a choice to processing step therein and technological parameter.
In addition, foaming plate made from the prior art can will lead to hair greater than the thickness with a thickness of 16 centimeters or so A large amount of generations of on-uniform porosity on plate are steeped, and the aperture generated is excessive, rejection rate is excessive, and leftover pieces are excessive, is unfavorable for industry Production can be directly as the materials for wall of the building partition not less than 25 centimeters of left and right thicknesses.
Main reason is that: the heated foaming process of foam is a unstable state change procedure, specifically: complete in cloth At mold heat treatment process in, the powder in mold can first pass through shrink sintering process formed plate, then increase temperature For degree until start to soften and occur Partial Liquid Phase, foaming agent generates at this time gas aggregation formation stomata and can promote plate wherein Material expansion, speed of expansion can start to slow down subsequently into temperature descending section after expanding to a certain extent, thus the plate solidification bubble made Pore morphology holding is maintained so that foamed ceramics is made；Wherein the size in aperture, density of material, foam thickness by raw material type, The parameters such as foaming agent type, foam stabilizer type, temperature schedule determine that the thickness of foaming plate cannot be greater than 20 centimeters；Once bubble If foam plate thickness is greater than 20 centimeters, foaming plate can then have one " from the process of accumulation of heat ", since foamed ceramics itself is Thermal insulation material, thickness are greater than 20 centimeters of meetings so that material center temperature and external temperature difference are excessive in temperature-rise period, foamed board The inside and outside foaming of material is uneven；And since internal-external temperature difference is excessive in temperature-fall period, thermal stress distribution is uneven, causes to send out Bubble plate is easily broken, and yield rate is too low, is unfavorable for the production of industrial-scale.
Summary of the invention
The technical problem to be solved in the present invention: existing foamed ceramic plate thickness, which is greater than 20 centimeters, will cause material center Temperature and external temperature difference are excessive, and inside and outside foaming is uneven, and since internal-external temperature difference is excessive in temperature-fall period, Thermal stress distribution unevenness foamed ceramic is caused to be broken plate, yield rate is too low, and leftover pieces are excessive.
In order to solve the above technical problems, the present invention provides a kind of super thick foamed ceramic plate, the super thick foamed ceramic plate Ingredient includes raw material, foaming agent, foam stabilizer and thermal inertia modifying agent；
Wherein: the component of the raw material includes 40-60 parts of fluorite tailing, 5-15 parts of potassium feldspar, 10-20 parts of bluestone powder, gives up 15-30 parts of porcelain powder；
The foaming agent is at least one of silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, potassium nitrate；
The foam stabilizer is at least one of borax, boric acid, zinc oxide, barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, in potash-lime glass, silica, aluminium oxide, glass fibre powder At least one；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 0.5-2:1-3:2-10.
Preferably, the dimensions of the super thick foamed ceramic plate is 270-320 centimeters long, 170-220 centimeters of wide, 25- 30 centimeters of thickness, cell diameter are 2-4 millimeters.
Preferably, the component of the raw material include 48-58 parts of fluorite tailing, 6-13 parts of potassium feldspar, 11-17 parts of bluestone powder, Useless 17-24 parts of porcelain powder.
Preferably, the phase structure of the fluorite tailing is crystal phase, and group is divided into the silica of 78-82wt%, 1-4wt% Calcium oxide, the potassium oxide of 2-7wt%, the aluminium oxide of 2-7wt%, 4-10wt% calcirm-fluoride, the scaling loss of 0.1-3wt% and other Inevitable substance；The phase structure of the potassium feldspar is crystal phase, and group is divided into the oxygen of the silica of 70-78wt%, 5-9wt% Change potassium, the aluminium oxide of 14-18wt%, the scaling loss of 0.1-3wt% and other inevitable substances；The phase structure of the bluestone powder For crystal phase, group is divided into the silica of 42-47wt%, the calcium oxide of 20-25wt%, the magnesia of 3-7wt%, 1-4wt% Aluminium oxide, the scaling loss of 20-28wt% and other inevitable substances；The phase structure of the useless porcelain powder is that amorphous phase and crystal phase are total It deposits, group is divided into the scaling loss of the silica of 55-65wt%, the potassium oxide of 5-12wt%, the aluminium oxide of 20-30wt%, 1-6wt% And other inevitable substances；
Wherein: the silica, the aluminium oxide are made in high temperature foaming process as the high-melting-point substances in raw material Exist to prop up the solid phase particles of structure；
The calcirm-fluoride has strong fluxing effect, and raw material can be made to generate suitable liquid phase during the high temperature treatment process to wrap The gas for wrapping foaming agent generation, achievees the effect that integral foam；
The potassium oxide has the effect of raising liquid phase viscosity, can effectively control expansion rate and foaming effect.
Preferably, the phase structure of the fluorite tailing is crystal phase, and group is divided into the silica of 81.8wt%, 1.9wt% Calcium oxide, the potassium oxide of 3.7wt%, the aluminium oxide of 5.6wt%, 5.2wt% calcirm-fluoride, the scaling loss of 1.8wt% and other not Evitable substance；The phase structure of the potassium feldspar is crystal phase, and group is divided into the oxidation of the silica of 73.6wt%, 8.2wt% Potassium, the aluminium oxide of 17.3wt%, the scaling loss of 0.9wt% and other inevitable substances；The phase structure of the bluestone powder is crystalline substance Phase, group be divided into the silica of 45.3wt%, the calcium oxide of 21.8wt%, the magnesia of 5.7wt%, 2.8wt% aluminium oxide, The scaling loss of 24.4wt% and other inevitable substances；The phase structure of the useless porcelain powder is amorphous phase and crystalline phases, component For the silica of 62.2wt%, the potassium oxide of 8.1wt%, the aluminium oxide of 26.4wt%, 3.3wt% scaling loss and other can not The substance avoided.
Preferably, the foaming agent be silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, in potassium nitrate at least Two kinds.
Preferably, the foaming agent be silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, in potassium nitrate at least Three kinds.
Preferably, the foam stabilizer is borax, boric acid, zinc oxide, at least two in barium carbonate.
Preferably, the foam stabilizer is borax, boric acid, zinc oxide, at least three kinds in barium carbonate.
Preferably, the thermal inertia modifying agent is high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, glass fibre At least two in powder.
Preferably, the thermal inertia modifying agent is high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, glass fibre At least three kinds in powder.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.58- 1.66g/cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 30-35 centimeters high, length 300-350 centimeters, 200-250 centimeters wide, fabric thickness is 5-17 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 720-900 DEG C with the heating rate of 8-17 DEG C/min, keep the temperature 0.2-1.5h；
Secondly it carries out high temperature foaming: continuing to be heated to 980-1120 DEG C with the heating rate of 9-16 DEG C/min, keep the temperature 2-5h；
It is cooling that foam stabilizing is carried out again: being cooled to 680-750 DEG C with the rate of temperature fall of 12-17 DEG C/min, is kept the temperature 0.5-2h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 1-6 DEG C/min and come out of the stove, obtain super thick hair Steep ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
The density of super thick foamed ceramic plate of the invention is 358-452g/cm3, compression strength 1.1-1.5Mpa, anti-folding Intensity is 0.5-0.8Mpa, and cell diameter 2-4mm, every square metre of uneven stomatal number is 1-3, the hole of uneven stomata Diameter is 5-7mm, and water absorption rate 2.1-4.7, super thick foamed ceramic plate is good working condition.
The advantageous effects of the above technical solutions of the present invention are as follows:
(1) present invention is designed by the constituent to super thick foamed ceramic plate, the especially design of raw material components, Super thick foamed ceramic plate is effectively reduced to the sensibility of temperature；And super thick foamed ceramic board production technology is created, has been passed through - four step heat treatment of pretreatment-mist projection granulating-cloth-cold working therein obtains required super thick foamed ceramic plate.
(2) present invention can directly use super thick foamed ceramic plate as the partition wall materials for wall of building, the super thick of production Foamed ceramic plate will not lead to the problem of that on-uniform porosity, aperture is excessive, rejection rate is excessive, and common buildings partition wall is 25 centimeters of left sides It is right；
(3) raw material of super thick foamed ceramic plate of the invention and the selection of production technology effectively reduce foamed ceramics Production cost, and foamed ceramic plate thickness increases considerably that mean to obtain leftover pieces caused by unit finished product material less , leftover pieces therein refer to the part cut away during cold working；
(4) selection of raw material of the invention and production technology can process more and size anisotropic part, part Anisotropic part cannot use the material of splicing, need to be processed come out after be an entirety, and also imply that can be with for thick firing plate Obtain larger sized shaped piece.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the super thick foamed ceramic plate of comparative example 2 of the present invention；
Fig. 2 is the structural schematic diagram of the super thick foamed ceramic plate of the embodiment of the present invention 3.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.
Being greater than 20 centimeters the technical problem to be solved by the present invention is to existing foamed ceramic plate thickness will cause in material Heart temperature and external temperature difference are excessive, and inside and outside foaming is uneven, and due to internal-external temperature difference mistake in temperature-fall period Greatly, thermal stress distribution unevenness foamed ceramic is caused to be broken plate, yield rate is too low, and leftover pieces are excessive.
Embodiment 1
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 40 parts of fluorite tailing, 5 parts of potassium feldspar, 10 parts of bluestone powder, useless 15 parts of porcelain powder；
The foaming agent is silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, any one in potassium nitrate；
The foam stabilizer is borax, boric acid, zinc oxide, any one in barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, in potash-lime glass, silica, aluminium oxide, glass fibre powder Any one；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 0.5:1:2.
The dimensions of the super thick foamed ceramic plate is 270 centimeters long, 170 centimeters wide, 25 centimeters of thickness, and cell diameter is 2 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.58g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 30 centimeters high, length 300 Centimetre, 200 centimeters wide, fabric thickness is 5 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 720 DEG C with the heating rate of 8 DEG C/min, keep the temperature 0.2h；
Secondly it carries out high temperature foaming: continuing to be heated to 980 DEG C with the heating rate of 9 DEG C/min, keep the temperature 2h；
It is cooling that foam stabilizing is carried out again: being cooled to 680 DEG C with the rate of temperature fall of 12 DEG C/min, is kept the temperature 0.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 1 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
Comparative example 1, only raw material are different from embodiment 1, and other content is identical；Wherein: raw material does not add useless porcelain powder.
Embodiment 2
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 60 parts of fluorite tailing, 15 parts of potassium feldspar, 20 parts of bluestone powder, useless 30 parts of porcelain powder；
The foaming agent is silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, any two kinds in potassium nitrate；
The foam stabilizer is borax, boric acid, zinc oxide, any two kinds in barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, in potash-lime glass, silica, aluminium oxide, glass fibre powder Any two kinds；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 2:3:10.
The dimensions of the super thick foamed ceramic plate is 320 centimeters long, 220 centimeters wide, 30 centimeters of thickness, and cell diameter is 4 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.66g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 35 centimeters high, length 350 Centimetre, 250 centimeters wide, fabric thickness is 17 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 900 DEG C with the heating rate of 17 DEG C/min, keep the temperature 1.5h；
Secondly it carries out high temperature foaming: continuing to be heated to 1120 DEG C with the heating rate of 16 DEG C/min, keep the temperature 5h；
It is cooling that foam stabilizing is carried out again: being cooled to 750 DEG C with the rate of temperature fall of 17 DEG C/min, is kept the temperature 2h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 6 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
Comparative example 2, only raw material are different from embodiment 2, and other content is identical；Wherein: raw material does not add bluestone powder and potassium Feldspar；For its super thick foamed ceramic plate obtained as shown in Figure 1, uneven stomatal number is more, aperture is larger.
Embodiment 3
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 57 parts of fluorite tailing, 8 parts of potassium feldspar, 13 parts of bluestone powder, useless 22 parts of porcelain powder；
The foaming agent is silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, any three kinds in potassium nitrate；
The foam stabilizer is borax, boric acid, zinc oxide, any three kinds in barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, in potash-lime glass, silica, aluminium oxide, glass fibre powder Any three kinds；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 1:2:7.
The dimensions of the super thick foamed ceramic plate is 295 centimeters long, 195 centimeters wide, 27 centimeters of thickness, and cell diameter is 3 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.62g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 32 centimeters high, length 325 Centimetre, 225 centimeters wide, fabric thickness is 11 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 880 DEG C with the heating rate of 14 DEG C/min, keep the temperature 1h；
Secondly it carries out high temperature foaming: continuing to be heated to 1075 DEG C with the heating rate of 11 DEG C/min, keep the temperature 4h；
It is cooling that foam stabilizing is carried out again: being cooled to 690 DEG C with the rate of temperature fall of 12 DEG C/min, is kept the temperature 1.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 3 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements；
For its super thick foamed ceramic plate obtained as shown in Fig. 2, uneven stomatal number is less, aperture is smaller.
Comparative example 3, only temperature schedule are different from embodiment 3, and other content is identical；
Wherein: temperature schedule:
It is heat-shrinked in advance first: being heated to 880 DEG C with the heating rate of 14 DEG C/min, keep the temperature 1h；
Secondly it carries out high temperature foaming: continuing to be heated to 1160 DEG C with the heating rate of 11 DEG C/min, keep the temperature 4h；
It is cooling that foam stabilizing is carried out again: being cooled to 690 DEG C with the rate of temperature fall of 12 DEG C/min, is kept the temperature 1.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 3 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer.
Embodiment 4
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 42 parts of fluorite tailing, 7 parts of potassium feldspar, 12 parts of bluestone powder, useless 18 parts of porcelain powder；
The foaming agent is silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, any four in potassium nitrate；
The foam stabilizer is borax, boric acid, zinc oxide, barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, in potash-lime glass, silica, aluminium oxide, glass fibre powder Any four
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 0.8:2:4.
The dimensions of the super thick foamed ceramic plate is 270 centimeters long, 170 centimeters wide, 25 centimeters of thickness, and cell diameter is 2 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.60g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 30 centimeters high, length 300 Centimetre, 200 centimeters wide, fabric thickness is 5 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 770 DEG C with the heating rate of 10 DEG C/min, keep the temperature 0.6h；
Secondly it carries out high temperature foaming: continuing to be heated to 1010 DEG C with the heating rate of 12 DEG C/min, keep the temperature 2h；
It is cooling that foam stabilizing is carried out again: being cooled to 680 DEG C with the rate of temperature fall of 14 DEG C/min, is kept the temperature 1.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 5 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
Comparative example 4, only temperature schedule are different from embodiment 4, and other content is identical；
Wherein: temperature schedule:
It is heat-shrinked in advance first: being heated to 880 DEG C with the heating rate of 14 DEG C/min, keep the temperature 1h；
Secondly it carries out high temperature foaming: continuing to be heated to 1075 DEG C with the heating rate of 11 DEG C/min, keep the temperature 4h；
It is cooling that foam stabilizing is carried out again: being cooled to 690 DEG C with the rate of temperature fall of 12 DEG C/min, is kept the temperature 1.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 12 DEG C/min and come out of the stove, obtain super thick hair Steep ceramic wafer.
Embodiment 5
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 50 parts of fluorite tailing, 10 parts of potassium feldspar, 15 parts of bluestone powder, useless 25 parts of porcelain powder；
The foaming agent be silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, in potassium nitrate to any five kinds；
The foam stabilizer is borax, boric acid, zinc oxide, barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, glass fibre powder；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 1.7:2.5:8.
The dimensions of the super thick foamed ceramic plate is 320 centimeters long, 220 centimeters wide, 30 centimeters of thickness, and cell diameter is 4 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.63g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 35 centimeters high, length 350 Centimetre, 250 centimeters wide, fabric thickness is 17 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 800 DEG C with the heating rate of 15 DEG C/min, keep the temperature 0.4h；
Secondly it carries out high temperature foaming: continuing to be heated to 1080 DEG C with the heating rate of 14 DEG C/min, keep the temperature 3h；
It is cooling that foam stabilizing is carried out again: being cooled to 700 DEG C with the rate of temperature fall of 15 DEG C/min, is kept the temperature 1.5h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 6 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
Comparative example 5, the only addition of inertia modifying agent are different from embodiment 5, and other content is identical；Wherein: not adding lazy Property modifying agent.
Embodiment 6
A kind of super thick foamed ceramic plate, the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, foam stabilizer and Thermal inertia modifying agent；
Wherein: the component of the raw material includes 55 parts of fluorite tailing, 13 parts of potassium feldspar, 16 parts of bluestone powder, useless 27 parts of porcelain powder；
The foaming agent is silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, potassium nitrate；
The foam stabilizer is borax, boric acid, zinc oxide, barium carbonate；
The thermal inertia modifying agent is high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, glass fibre powder；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100: 1.6:2.5:7.
The dimensions of the super thick foamed ceramic plate is 270 centimeters long, 170 centimeters wide, 25 centimeters of thickness, and cell diameter is 2 millimeters.
The production technology of the super thick foamed ceramic plate, the production technology specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and is filtered out by screening machine Granularity is the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizing The granularity of agent powder is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder It is mixed in proportion；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；Wherein solvent Ingredient includes water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, the water in solvent: sodium carboxymethylcellulose: chlorination Ammonium: kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.60g/ cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 30 centimeters high, length 300 Centimetre, 200 centimeters wide, fabric thickness is 5 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed being sent into heat treatment kiln and carries out high-temperature process, heat treatment system It spends as follows:
It is heat-shrinked in advance first: being heated to 900 DEG C with the heating rate of 8 DEG C/min, keep the temperature 1.5h；
Secondly it carries out high temperature foaming: continuing to be heated to 1120 DEG C with the heating rate of 9 DEG C/min, keep the temperature 2-5h；
It is cooling that foam stabilizing is carried out again: being cooled to 680 DEG C with the rate of temperature fall of 17 DEG C/min, is kept the temperature 2h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 6 DEG C/min and come out of the stove, obtain super thick foaming Ceramic wafer；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
Comparative example 6, the only described raw material: the foaming agent: the foam stabilizer: the quality percentage of the thermal inertia modifying agent Number ratio is different from embodiment 6, and other content is identical；Wherein: the foaming agent: the foam stabilizer: the thermal inertia modifying agent Mass percent ratio be 100:3:0.5:1.
The performance parameter of super thick foamed ceramic plate prepared by embodiment 1-6 comparative example 1-6 corresponding with its such as following table institute Show:
In conclusion the present invention is designed by the constituent to super thick foamed ceramic plate, especially raw material components Design, effectively reduce super thick foamed ceramic plate to the sensibility of temperature；And super thick foamed ceramic plate production work is created Skill obtains required super thick foamed ceramic plate by-four step heat treatment of pretreatment-mist projection granulating-cloth-cold working therein； Directly use super thick foamed ceramic plate as the partition wall materials for wall of building, leftover pieces caused by unit finished product material are less, can To obtain larger sized shaped piece, it will not lead to the problem of that on-uniform porosity, aperture is excessive, rejection rate is excessive.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of super thick foamed ceramic plate, which is characterized in that the ingredient of the super thick foamed ceramic plate include raw material, foaming agent, Foam stabilizer and thermal inertia modifying agent；
Wherein: the component of the raw material includes 40-60 parts of fluorite tailing, 5-15 parts of potassium feldspar, 10-20 parts of bluestone powder, useless porcelain powder 15-30 parts；
The foaming agent is at least one of silicon carbide, carbon dust, calcium carbonate, manganese dioxide, sodium nitrate, potassium nitrate；
The foam stabilizer is at least one of borax, boric acid, zinc oxide, barium carbonate；
The thermal inertia modifying agent be high-boron-silicon glass, potash-lime glass, silica, aluminium oxide, in glass fibre powder extremely Few one kind；
The raw material: the foaming agent: the foam stabilizer: the mass percent ratio of the thermal inertia modifying agent is 100:0.5- 2:1-3:2-10.
2. super thick foamed ceramic plate according to claim 1, which is characterized in that the dimensions of the super thick foamed ceramic plate To be 270-320 centimeters long, 170-220 centimeters wide, 25-30 centimeters thick, cell diameter is 2-4 millimeters.
3. super thick foamed ceramic plate according to claim 1, which is characterized in that the component of the raw material includes fluorite tailing 48-58 parts, 6-13 parts of potassium feldspar, 11-17 parts of bluestone powder, useless 17-24 parts of porcelain powder.
4. super thick foamed ceramic plate according to claim 1, which is characterized in that the foaming agent is silicon carbide, carbon dust, carbonic acid Calcium, manganese dioxide, sodium nitrate, at least two in potassium nitrate.
5. super thick foamed ceramic plate according to claim 1, which is characterized in that the foaming agent is silicon carbide, carbon dust, carbonic acid Calcium, manganese dioxide, sodium nitrate, at least three kinds in potassium nitrate.
6. super thick foamed ceramic plate according to claim 1, which is characterized in that the foam stabilizer is borax, boric acid, oxidation At least two in zinc, barium carbonate.
7. super thick foamed ceramic plate according to claim 1, which is characterized in that the foam stabilizer is borax, boric acid, oxidation At least three kinds in zinc, barium carbonate.
8. super thick foamed ceramic plate according to claim 1, which is characterized in that the thermal inertia modifying agent is high borosilicate glass Glass, potash-lime glass, silica, aluminium oxide, at least two in glass fibre powder.
9. super thick foamed ceramic plate according to claim 1, which is characterized in that the thermal inertia modifying agent is high borosilicate glass Glass, potash-lime glass, silica, aluminium oxide, at least three kinds in glass fibre powder.
10. the production technology of -9 any super thick foamed ceramic plates according to claim 1, which is characterized in that the production work Skill specifically includes the following steps:
S1, pretreatment: each component of raw material is uniformly mixed, is ground with grinder, and granularity is filtered out by screening machine For the raw material powder of 200 mesh；The granularity of the thermal inertia modifier powder similarly obtained is 200 mesh, blowing agent powder, foam stabilizer powder The granularity at end is 300 mesh；Later by raw material powder, thermal inertia modifier powder, blowing agent powder and foam stabilizer powder press than Example is mixed；
S2, ingredient: the mixed-powder of S1 is uniformly mixed in stock tank with solvent, obtains ceramic slurry；The wherein ingredient of solvent Including water, sodium carboxymethylcellulose, ammonium chloride, kaolin, water-reducing agent, water in solvent: sodium carboxymethylcellulose: ammonium chloride: Kaolin: the percent mass ratio of water-reducing agent is 100:0.8:0.6:1.2:1, and obtained ceramic slurry specific gravity is 1.58- 1.66g/cm3；
S3, mist projection granulating: ceramic particle is obtained by granulation is dried in the ceramic slurry importing spray drying tower of S2；
S4, cloth: the ceramic particle that S3 is obtained is arranged in high-temperature resistance die, and die size is 30-35 centimeters high, long 300- 350 centimeters, 200-250 centimeters wide, fabric thickness is 5-17 centimeters；
S5, heat treatment: the high-temperature resistance die that S4 cloth is completed is sent into heat treatment kiln and carries out high-temperature process, heat treating regime is such as Under:
It is heat-shrinked in advance first: being heated to 720-900 DEG C with the heating rate of 8-17 DEG C/min, keep the temperature 0.2-1.5h；
Secondly it carries out high temperature foaming: continuing to be heated to 980-1120 DEG C with the heating rate of 9-16 DEG C/min, keep the temperature 2-5h；
It is cooling that foam stabilizing is carried out again: being cooled to 680-750 DEG C with the rate of temperature fall of 12-17 DEG C/min, is kept the temperature 0.5-2h；
It is cooling finally to carry out destressing: continuing to be cooled to 80 DEG C with the rate of temperature fall of 1-6 DEG C/min and come out of the stove, obtain super thick foaming pottery Porcelain plate；
S6, cold working: the super thick foamed ceramic plate of required specification is processed into according to industrial requirements.
CN201811552548.1A 2018-12-19 2018-12-19 A kind of super thick foamed ceramic plate and production technology Pending CN109553404A (en)

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CN111943642A (en) * 2019-05-15 2020-11-17 广东金意陶陶瓷集团有限公司 High-strength foamed ceramic and preparation method thereof
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CN112341240A (en) * 2020-10-29 2021-02-09 佛山欧神诺陶瓷有限公司 Low-thermal-expansion foamed ceramic and preparation method and application thereof
CN112341236A (en) * 2020-11-10 2021-02-09 广东萨米特陶瓷有限公司 Light high-strength ceramic for building curtain wall and preparation method thereof
CN113121257A (en) * 2021-05-18 2021-07-16 烟台大学 Ultra-light full-closed-cell foamed ceramic with compact surface and low-temperature firing method thereof
CN113480325A (en) * 2021-08-16 2021-10-08 苏州大学 Fluorite tailing based building ceramsite and preparation method thereof
CN115448748A (en) * 2022-08-24 2022-12-09 佛山市陶本科技有限公司 High-fire-resistance, extreme-high-strength foamed ceramic and preparation method thereof
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CN117362067A (en) * 2023-10-11 2024-01-09 福建省南安宝达建材有限公司 Non-glazed ceramic tile with solid holes and its making process
CN117362067B (en) * 2023-10-11 2024-05-17 福建省南安宝达建材有限公司 Non-glazed ceramic tile with solid holes and its making process

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Application publication date: 20190402