CN109320206A - A kind of technique and foamed ceramic material of layering and zoning material cloth production foamed ceramic - Google Patents
A kind of technique and foamed ceramic material of layering and zoning material cloth production foamed ceramic Download PDFInfo
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- CN109320206A CN109320206A CN201811357859.2A CN201811357859A CN109320206A CN 109320206 A CN109320206 A CN 109320206A CN 201811357859 A CN201811357859 A CN 201811357859A CN 109320206 A CN109320206 A CN 109320206A
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- foamed ceramic
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- 239000000463 material Substances 0.000 title claims abstract description 154
- 239000004744 fabric Substances 0.000 title claims abstract description 83
- 239000000919 ceramic Substances 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000013316 zoning Methods 0.000 title claims abstract description 37
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 30
- 239000011236 particulate material Substances 0.000 claims abstract description 91
- 239000004088 foaming agent Substances 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims description 36
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 20
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 11
- 239000000454 talc Substances 0.000 claims description 10
- 229910052623 talc Inorganic materials 0.000 claims description 10
- 235000012222 talc Nutrition 0.000 claims description 10
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 9
- 239000006063 cullet Substances 0.000 claims description 9
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 8
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 8
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 239000008188 pellet Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 17
- 238000010304 firing Methods 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 3
- 238000005469 granulation Methods 0.000 description 12
- 230000003179 granulation Effects 0.000 description 12
- 210000004209 hair Anatomy 0.000 description 8
- 238000000498 ball milling Methods 0.000 description 7
- 239000003595 mist Substances 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
A kind of technique of layering and zoning material cloth production foamed ceramic, is related to Material Field, a variety of foaming agents contents and grain graininess is used to be all different foamed ceramic particulate material, then produce foamed ceramic material by layering and zoning cloth.Its lower layer's grain diameter is small, and foaming agents content is high, and upper layer grain diameter is big, and the low set-up mode of foaming agents content provides channel for cryopumping, to reduce the time of cryopumping.Meanwhile such set-up mode is additionally favorable for the transmitting of heat, the foaming for making up temperature gradient generation is uneven, accelerates the heating rate in foaming firing stage, reduces the soaking time in blowing temperature, and then shorten the production cycle of entire foamed ceramic material.A kind of foamed ceramic material uses the technique of above-mentioned layering and zoning material cloth production foamed ceramic to be prepared, and quality is high, and defect is few, and with short production cycle, is appropriate for volume production.
Description
Technical field
The present invention relates to Material Fields, in particular to a kind of work of layering and zoning material cloth production foamed ceramic
Skill and foamed ceramic material.
Background technique
It is primary raw material that foamed ceramic, which generallys use the solid waste such as tailing, polishing slag, squeezing mud, at present, and length is added
Stone, cullet, talcum etc. are auxiliary material, in addition foaming agent, after mixing in proportion, is made diameter 40 through ball milling, mist projection granulating
The spheric granules material of~60 mesh.Then particulate material is distributed into grinding tool by distributing device, foams and is burnt into through high temperature, be made after cooling
Foamed ceramic material.
Foamed ceramic is used as light wall material, and product thickness requires to be generally 100~300mm.There is the thickness for preparation
The foamed ceramic materials for wall of degree, the spheric granules material fabric thickness of 40~60 mesh are 50~150mm.Before 800 DEG C of low-temperature zone,
It is required that exhaust is sufficiently, it otherwise will foam in high temperature and be burnt into section generation defect.And it is burnt into section in foaming, since fabric thickness is thicker,
Temperature gradient is generated inside raw material, to guarantee that temperature is consistent, uniform in foaming, it is desirable that it is slower in the heating rate of foaming firing section,
And the sufficiently long time is kept the temperature in blowing temperature.Therefore the period using roller kilns production foamed ceramic is longer.
Summary of the invention
The purpose of the present invention is to provide a kind of techniques of layering and zoning material cloth production foamed ceramic, can protect
Under the premise of demonstrate,proving foamed ceramic quality, the time needed for reducing firing, so as to shorten the production cycle of foamed ceramic.
Another object of the present invention is to provide a kind of foamed ceramic materials, use above-mentioned layering and zoning material cloth raw
The technique for producing foamed ceramic is prepared, and quality is high, and defect is few, and with short production cycle, is appropriate for volume production.
The embodiment of the present invention is achieved in that
A kind of technique of layering and zoning material cloth production foamed ceramic comprising:
Ceramic raw material is mixed with the foaming agent of different weight respectively, the different particle of the content of more parts of foaming agents is made
Material, and the partial size of the high particulate material of content of foaming agent is smaller, the partial size of the low particulate material of foaming agents content is larger；
More parts of particulate materials are high according to foaming agents content, partial size is small in lower layer, foaming agents content is small, partial size is big upper
The mode of layer, carries out layer-by-layer cloth；
The well laid bed of material is sintered；
Wherein, the foaming agents content of particulate material is 0.1wt%~0.6wt%, and the partial size of particulate material was -20~+80 mesh
Sieve.
A kind of foamed ceramic material is prepared by the technique of above-mentioned layering and zoning material cloth production foamed ceramic.
The beneficial effect of the embodiment of the present invention is:
The embodiment of the invention provides a kind of techniques of layering and zoning material cloth production foamed ceramic, use a variety of hairs
Infusion content and grain graininess are all different foamed ceramic particulate material, then produce foamed ceramic material by layering and zoning cloth
Material.Its lower layer's grain diameter is small, and foaming agents content is high, and upper layer grain diameter is big, the low set-up mode of foaming agents content, is low temperature
Exhaust provides channel, to reduce the time of cryopumping.Meanwhile such set-up mode is additionally favorable for the transmitting of heat,
The foaming for making up temperature gradient generation is uneven, accelerates the heating rate in foaming firing stage, reduces in the heat preservation of blowing temperature
Between, and then shorten the production cycle of entire foamed ceramic material.
The embodiment of the invention also provides a kind of foamed ceramic materials, use above-mentioned layering and zoning material cloth production hair
The technique of bubble ceramics is prepared, and quality is high, and defect is few, and with short production cycle, is appropriate for volume production.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the technique variable grain that layering and zoning material cloth provided by the embodiment of the present invention 1 produces foamed ceramic
The distribution schematic diagram of material；
Icon: first bed of material of 1-；Second bed of material of 2-；The 3- third bed of material.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
It makes pottery below to the technique and foaming of a kind of layering and zoning material cloth production foamed ceramic of the embodiment of the present invention
Ceramic material is specifically described.
The embodiment of the invention provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
Ceramic raw material is mixed with the foaming agent of different weight respectively, the different particle of the content of more parts of foaming agents is made
Material, and the partial size of the high particulate material of content of foaming agent is smaller, the partial size of the low particulate material of foaming agents content is larger；
More parts of particulate materials are high according to foaming agents content, partial size is small in lower layer, foaming agents content is small, partial size is big upper
The mode of layer, carries out layer-by-layer cloth；
The bed of material is sintered；
Wherein, the foaming agents content of particulate material is 0.1wt%~0.6wt%, and the partial size of particulate material was -20~+80 mesh
Sieve.
Wherein, the number of plies of cloth can be 3~6 layers, in the way of 3 layers for, the layering and zoning material cloth production hair
Steeping ceramic technique includes:
Ceramic raw material is mixed with the foaming agent of different weight respectively, the first particulate material, the second particulate material and third is made
Particulate material；
The first particulate material is successively used again, and the second particulate material and third particulate material carry out layer-by-layer cloth in a mold；
The bed of material is sintered；
Wherein, the content of foaming agent is 0.45wt%~0.6wt% in the first particulate material, and granularity was -60~+80 mesh
Sieve；The content of foaming agent is 0.25wt%~0.4wt% in second particulate material, and granularity was -40~+60 meshes；Third particle
The content of foaming agent is 0.1wt%~0.2wt% in material, and granularity was -20~+40 meshes.
Preferably, the content of foaming agent is 0.45wt%~0.5wt% in the first particulate material, and granularity was -60~+80 mesh
Sieve；The content of foaming agent is 0.25wt%~0.3wt% in second particulate material, and granularity was -40~+60 meshes；Third particle
The content of foaming agent is 0.15wt%~0.2wt% in material, and granularity was -20~+40 meshes.
It should be noted that mesh, through the unit frequently as material particle size or mesh size.Mesh number is bigger, indicates particle
It is thinner, it is usually used in the quantifier of laboratory sample broke granularity.In general, the aperture mesh number * (micron number)=15000.For this
For the technical staff of field, "-(negative sign) " is added before the Arabic numerals of mesh number often to indicate that particle can be by selected
Sieve, "+(positive sign) " indicate particle cannot pass through selected sieve.Such as: " -80 mesh " then indicates that of 80 meshes can be passed through
Grain；"+120 mesh " then indicates that the particle of 120 meshes cannot be passed through.
The embodiment of the present invention is all different foamed ceramic particulate material using a variety of foaming agents contents and grain graininess, then leads to
Cross layering and zoning cloth production foamed ceramic material.Its lower layer's grain diameter is small, and foaming agents content is high, and upper layer grain diameter is big,
The low set-up mode of foaming agents content.Gas moves upwards in foaming process, and upper layer grain graininess is big, and intergranular gap is just
Greatly, the discharge for gas under low temperature provides channel, effectively reduces the time of cryopumping.Meanwhile in temperature-rise period, temperature
It is conducted from lower layer toward upper layer, the biggish gap in upper layer is additionally favorable for the transmitting of heat, a degree of to reduce shape in temperature-rise period
At temperature gradient.In addition, temperature by it is lower and on conductive process in, lower layer preferentially reaches blowing temperature, and in foaming temperature
It is able to maintain the longer time under degree, increases lower layer's foaming agents content, reduces upper layer foaming agents content, it can to a certain extent more
It is uneven to mend the foaming that temperature gradient generates, so as to accelerate the heating rate in foaming firing stage, reduces in blowing temperature
Soaking time, and then shorten the production cycle of entire foamed ceramic material.
Further, foaming agent includes at least one of carbonate, silicate, silicon carbide and carbon black.Preferably, at this
In inventive embodiments, using silicon carbide as foamed material, silicon carbide is the mainstream foaming in current foamed ceramics production process
Agent releases bulk gas in 800~900 DEG C of sintering, and foaming effect is preferable.
Optionally, in embodiments of the present invention, in parts by weight, ceramic raw material includes:
50~120 parts of major ingredient and 20~45 parts of auxiliary material；
Wherein, major ingredient includes polishing slag, squeezing at least one of mud and cullet；Auxiliary material include potassium feldspar, talcum and
At least one of medium temperature sand.
Preferably, ceramic raw material further includes the sodium carboxymethylcellulose of 0.1~0.3 parts by weight.Sodium carboxymethylcellulose can
Enhance intergranular cohesive force, improves the stability of blank.And it can burn mistake completely at high temperature, can't produce to final
Product have any impact.
Optionally, in embodiments of the present invention, in parts by weight, ceramic raw material includes:
Polish 30~60 parts of slag, squeezing 20~40 parts of mud, 5~15 parts of cullet, 6~12 parts of potassium feldspar, 4~9 parts of talcum,
10~20 parts of medium temperature sand, 0.1~0.3 part of sodium carboxymethylcellulose.
It further, include heating step to the process that the bed of material is sintered, heating step includes: with 300~400 DEG C/h
Heating rate, temperature is risen to 700~800 DEG C, keeps the temperature 1~1.5h；Again with the heating rate of 180~240 DEG C/h, by temperature
1150~1180 DEG C are risen to, 1~1.5h is kept the temperature.
It further, further include cooling step after heating step, cooling step packet to the process that the bed of material is sintered
It includes: with the rate of temperature fall fast cooling of 150~200 DEG C/h to 700~750 DEG C, then being down to the rate of temperature fall of 90~150 DEG C/h
Room temperature.
Inventor has found by creative work, is sintered according to above-mentioned sintering processing, not only significantly shortens hair
The production cycle of ceramics is steeped, meanwhile, it is capable to ensure that final products have preferable quality.
Further, when carrying out cloth, first bed of material is first formed with the first particle cloth；Again on first bed of material,
Second bed of material is formed with the second particulate material cloth；Again on second bed of material, the third bed of material is formed with third particulate material；Wherein,
The thickness ratio of first bed of material, second bed of material and the third bed of material is 1:0.8~1.2:0.8~1.2.Preferably, first bed of material, second
The thickness of the bed of material and the third bed of material is equal, first bed of material, and the overall thickness of second bed of material and the third bed of material is greater than 7cm.
Further, when first bed of material is arranged, can by the first particulate material cloth in the central area of first bed of material,
By the second particulate material cloth first bed of material surrounding.The length and width of central area are about the 2/3 of the first bed of material entirety length and width.It is rising
During temperature, the central area heating of first bed of material faster compared with surrounding, is based on same principle, can use in the first bed of material surrounding
Second particulate material, to make up temperature gradient.
The embodiment of the invention also provides a kind of foamed ceramic materials, use above-mentioned layering and zoning material cloth production hair
The technique of bubble ceramics is prepared, and quality is high, and defect is few, and with short production cycle, is appropriate for volume production.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
Polish 60 parts of slag, 20 parts of mud of squeezing, 5 parts of cullet, 6 parts of potassium feldspar, 4 parts of talcum, medium temperature husky 5 parts and carboxylic first
0.1 part of base sodium cellulosate.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.5wt% is mixed, through ball milling, mist projection granulating, then granularity is made to roller granulation
For the first particulate material of mistake -60~+80 meshes；Take above-mentioned ceramic raw material, mix the silicon carbide of 0.3wt%, be made granularity be-
Second particulate material of 40~+60 meshes；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.2wt% is mixed, by grain is made to roller granulation
Degree was the third particulate material of -20~+40 meshes.
S3. cloth
Shown in referring to Fig.1, cloth is carried out in mold bottom using the first particulate material and the second particulate material, forms first bed of material
1；Wherein, the first particulate material is located at the central region of first bed of material, and the length and width in the region are the 2/3 of first bed of material, and second
Grain is distributed in the peripheral regions of first bed of material.
Using the second particulate material, cloth is carried out on first bed of material, forms second bed of material 2.
Using third particulate material, cloth is carried out on second bed of material, forms the third bed of material 3.
Wherein, the thickness ratio of first bed of material 1, second bed of material 2 and the third bed of material 3 is 1:1:1.
S4. it is sintered
Temperature is risen to 800 DEG C, is kept the temperature 1h by the bed of material that will be formed after cloth with the heating rate of 300 DEG C/h；Again with 180
DEG C/heating rate of h, temperature is risen to 1150 DEG C, keeps the temperature 1h.Then, with the rate of temperature fall fast cooling of 160 DEG C/h to 700
DEG C, then room temperature is down to the rate of temperature fall of 90 DEG C/h, obtain foamed ceramic material.
Embodiment 2
The present embodiment provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
Polish 30 parts of slag, 40 parts of mud of squeezing, 5 parts of cullet, 9 parts of potassium feldspar, 6 parts of talcum, medium temperature husky 15 parts and carboxylic first
0.1 part of base sodium cellulosate.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.5wt% is mixed, through ball milling, mist projection granulating, then granularity is made to roller granulation
For the first particulate material of mistake -60~+80 meshes；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.3wt% is mixed, by being granulated to roller
The second particulate material that granularity was -40~+60 meshes is made；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.2wt% is mixed, is passed through
The third particulate material that granularity was -20~+40 meshes is made to roller granulation.
S3. cloth
Cloth is carried out in mold bottom using the first particulate material and the second particulate material, forms first bed of material；Wherein, first
Pellet is located at the central region of first bed of material, and the length and width in the region are the 2/3 of first bed of material, and the second particle is distributed in first bed of material
Peripheral regions.
Using the second particulate material, cloth is carried out on first bed of material, forms second bed of material.
Using third particulate material, cloth is carried out on second bed of material, forms the third bed of material.
Wherein, the thickness ratio of first bed of material, second bed of material and the third bed of material is 1:1:1.
S4. it is sintered
Temperature is risen to 700 DEG C, is kept the temperature 1h by the bed of material that will be formed after cloth with the heating rate of 400 DEG C/h；Again with 240
DEG C/heating rate of h, temperature is risen to 1160 DEG C, keeps the temperature 1h.Then, with the rate of temperature fall fast cooling of 180 DEG C/h to 700
DEG C, then room temperature is down to the rate of temperature fall of 150 DEG C/h, obtain foamed ceramic material.
Embodiment 3
The present embodiment provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
Polish 35 parts of slag, 20 parts of mud of squeezing, 15 parts of cullet, 12 parts of potassium feldspar, 9 parts of talcum, medium temperature husky 11 parts and carboxylic
0.1 part of sodium carboxymethylcellulose pyce.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.5wt% is mixed, through ball milling, mist projection granulating, then granularity is made to roller granulation
For the first particulate material of mistake -60~+80 meshes；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.3wt% is mixed, by being granulated to roller
The second particulate material that granularity was -40~+60 meshes is made；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.2wt% is mixed, is passed through
The third particulate material that granularity was -20~+40 meshes is made to roller granulation.
S3. cloth
Cloth is carried out in mold bottom using the first particulate material and the second particulate material, forms first bed of material；Wherein, first
Pellet is located at the central region of first bed of material, and the length and width in the region are the 2/3 of first bed of material, and the second particle is distributed in first bed of material
Peripheral regions.
Using the second particulate material, cloth is carried out on first bed of material, forms second bed of material.
Using third particulate material, cloth is carried out on second bed of material, forms the third bed of material.
Wherein, the thickness ratio of first bed of material, second bed of material and the third bed of material is 1:1:1.
S4. it is sintered
Temperature is risen to 750 DEG C, is kept the temperature 1h by the bed of material that will be formed after cloth with the heating rate of 350 DEG C/h；Again with 210
DEG C/heating rate of h, temperature is risen to 1170 DEG C, keeps the temperature 1h.Then, with the rate of temperature fall fast cooling of 170 DEG C/h to 700
DEG C, then room temperature is down to the rate of temperature fall of 120 DEG C/h, obtain foamed ceramic material.
Embodiment 4
The present embodiment provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
50 parts of slag of polishing, 20 parts of mud of squeezing, 25 parts of potassium feldspar, 9 parts of talcum and 0.3 part of sodium carboxymethylcellulose.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.6wt% is mixed, through ball milling, mist projection granulating, then granularity is made to roller granulation
For the first particulate material of mistake -60~+80 meshes；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.4wt% is mixed, by being granulated to roller
The second particulate material that granularity was -40~+60 meshes is made；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.25wt% is mixed, is passed through
The third particulate material that granularity was -20~+40 meshes is made to roller granulation；Above-mentioned ceramic raw material is taken, the carbon of 0.15wt% is mixed
SiClx, by the 4th particulate material that granularity was -10~+20 meshes is made to roller granulation.
S3. cloth
Using the first particulate material, cloth is carried out in mold bottom, forms first bed of material.
Using the second particulate material, cloth is carried out on first bed of material, forms second bed of material.
Using third particulate material, cloth is carried out on second bed of material, forms the third bed of material；
Using the 4th particulate material, cloth is carried out on the third bed of material, forms the 4th bed of material.
Wherein, first bed of material, the thickness ratio of second bed of material, the third bed of material and the 4th bed of material are 1:1.1:1.2:1.2.
S4. it is sintered
Temperature is risen to 800 DEG C, is kept the temperature 1.5h by the bed of material that will be formed after cloth with the heating rate of 300 DEG C/h；Again with
Temperature is risen to 1180 DEG C, keeps the temperature 1.5h by the heating rate of 180 DEG C/h.Then, with the rate of temperature fall fast cooling of 160 DEG C/h
It is down to room temperature to 800 DEG C, then with the rate of temperature fall of 100 DEG C/h, obtains foamed ceramic material.
Embodiment 5
The present embodiment provides a kind of techniques of layering and zoning material cloth production foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
It is 11 parts and 0.2 part of sodium carboxymethylcellulose husky to polish 35 parts of slag, 40 parts of mud of squeezing, 20 parts of talcum, medium temperature.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.45wt% is mixed, through ball milling, mist projection granulating, then grain is made to roller granulation
Degree was the first particulate material of -60~+80 meshes；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.25wt% is mixed, by being made to roller
The second particulate material that granularity was -40~+60 meshes is made in grain；Above-mentioned ceramic raw material is taken, the silicon carbide of 0.1wt% is mixed, is passed through
It crosses and the third particulate material that granularity was -20~+40 meshes is made to roller granulation.
S3. cloth
Using the first particulate material, cloth is carried out in mold bottom, forms first bed of material.
Using the second particulate material, cloth is carried out on first bed of material, forms second bed of material.
Using third particulate material, cloth is carried out on second bed of material, forms the third bed of material.
Wherein, the thickness ratio of first bed of material, second bed of material and the third bed of material is 1:0.8:0.9.
S4. it is sintered
Temperature is risen to 750 DEG C, is kept the temperature 1h by the bed of material that will be formed after cloth with the heating rate of 300 DEG C/h；Again with 240
DEG C/heating rate of h, temperature is risen to 1150 DEG C, keeps the temperature 1.5h.Then, extremely with the rate of temperature fall fast cooling of 150 DEG C/h
750 DEG C, then room temperature is down to the rate of temperature fall of 90 DEG C/h, obtain foamed ceramic material.
Comparative example
The present embodiment provides a kind of techniques for producing foamed ceramic comprising:
S1. ceramic raw material is configured.
Wherein, according to parts by weight, which includes:
Polish 60 parts of slag, 20 parts of mud of squeezing, 5 parts of cullet, 6 parts of potassium feldspar, 4 parts of talcum, medium temperature husky 5 parts and carboxylic first
0.1 part of base sodium cellulosate.
S2. particulate material is prepared
Above-mentioned ceramic raw material is taken, the silicon carbide of 0.3wt% is mixed, through ball milling, mist projection granulating, then granularity is made to roller granulation
For mistake -20~+40 meshes particulate material.
S3. cloth
Using above-mentioned particulate material, cloth is carried out in mold bottom.
S4. it is sintered
With the heating rate of 300 DEG C/h, temperature is risen to 800 DEG C, keeps the temperature 1h；It, will be warm again with the heating rate of 180 DEG C/h
Degree rises to 1150 DEG C, keeps the temperature 1h.Then, with the rate of temperature fall fast cooling of 150 DEG C/h to 700 DEG C, then with the cooling of 90 DEG C/h
Rate is down to room temperature, obtains foamed ceramic material.
Test example
Using foamed ceramic material provided by Examples 1 to 5 and comparative example 1, in different firing periods, to hair
The internal structure of bubble ceramic material is detected, and testing result is as shown in table 1:
1. foamed ceramic material internal structure testing result of table
As can be seen from Table 1, using production technology provided by the embodiment of the present application 1~5, bubbling efficiency is substantially better than pair
The production technology of ratio 1, at least only needs 15h to can reach even foaming, substantially increases production efficiency.
In conclusion the embodiment of the invention provides a kind of technique of layering and zoning material cloth production foamed ceramic,
It is all different foamed ceramic particulate material using a variety of foaming agents contents and grain graininess, then passes through layering and zoning cloth production hair
Steep ceramic material.Its lower layer's grain diameter is small, and foaming agents content is high, and upper layer grain diameter is big, the low setting side of foaming agents content
Formula provides channel for cryopumping, to reduce the time of cryopumping.Meanwhile such set-up mode is additionally favorable for heat
The transmitting of amount, the foaming for making up temperature gradient generation is uneven, accelerates the heating rate in foaming firing stage, reduces in blowing temperature
Soaking time, and then shorten the production cycle of entire foamed ceramic material.
The embodiment of the invention also provides a kind of foamed ceramic materials, use above-mentioned layering and zoning material cloth production hair
The technique of bubble ceramics is prepared, and quality is high, and defect is few, and with short production cycle, is appropriate for volume production.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of technique of layering and zoning material cloth production foamed ceramic characterized by comprising
Ceramic raw material is mixed with the foaming agent of different weight respectively, the different particle of the content of the more parts of foaming agents is made
Material, and the partial size of the high particulate material of content of the foaming agent is smaller, the low particulate material of the foaming agents content
Partial size is larger；
The more parts of particulate materials are high according to the foaming agents content, partial size is small in lower layer, and the foaming agents content is small, partial size
The big mode on upper layer, carries out layer-by-layer cloth；
The well laid bed of material is sintered；
Wherein, the foaming agents content of the particulate material is 0.1wt%~0.6wt%, the partial size of the particulate material was -10~+
80 meshes.
2. the technique of layering and zoning material cloth production foamed ceramic according to claim 1 characterized by comprising
The ceramic raw material is mixed with the foaming agent of different weight respectively, is made the first particulate material, the second particulate material and
Third particulate material；
First particulate material is successively used again, and second particulate material and the third particulate material carry out layer-by-layer cloth in a mold
Material；
The well laid bed of material is sintered；
Wherein, the content of foaming agent is 0.45wt%~0.6wt% in first particulate material, and granularity was -60~+80 mesh
Sieve；The content of foaming agent is 0.25wt%~0.4wt% in second particulate material, and granularity was -40~+60 meshes；It is described
The content of foaming agent is 0.1wt%~0.2wt% in third particulate material, and granularity was -20~+40 meshes.
3. the technique of layering and zoning material cloth production foamed ceramic according to claim 1 or 2, which is characterized in that institute
Stating foaming agent includes at least one of carbonate, silicate, silicon carbide and carbon black.
4. the technique of layering and zoning material cloth production foamed ceramic according to claim 3, which is characterized in that according to weight
Number meter is measured, the ceramic raw material includes:
50~120 parts of major ingredient and 20~45 parts of auxiliary material；
Wherein, the major ingredient includes polishing slag, squeezing at least one of mud and cullet；The auxiliary material includes potassium feldspar, cunning
At least one of stone and medium temperature sand.
5. the technique of layering and zoning material cloth production foamed ceramic according to claim 4, which is characterized in that the pottery
Porcelain raw material further includes the sodium carboxymethylcellulose of 0.1~0.3 parts by weight.
6. the technique of layering and zoning material cloth production foamed ceramic according to claim 5, which is characterized in that according to weight
Number meter is measured, the ceramic raw material includes:
Polish 30~60 parts of slag, squeezing 20~40 parts of mud, 5~15 parts of cullet, 6~12 parts of potassium feldspar, 4~9 parts of talcum, medium temperature
It is 10~20 parts, 0.1~0.3 part of sodium carboxymethylcellulose husky.
7. the technique of layering and zoning material cloth production foamed ceramic according to claim 1 or 2, which is characterized in that right
The process that the bed of material is sintered includes heating step, the heating step include: with the heating rate of 300~400 DEG C/h,
Temperature is risen to 700~800 DEG C, keeps the temperature 1~1.5h；Again with the heating rate of 180~240 DEG C/h, temperature is risen to 1150~
1180 DEG C, keep the temperature 1~1.5h.
8. the technique of layering and zoning material cloth production foamed ceramic according to claim 7, which is characterized in that described
The process that the bed of material is sintered further includes the cooling step after the heating step, the cooling step include: with 150~
The rate of temperature fall fast cooling of 200 DEG C/h is down to room temperature to 700~750 DEG C, then with the rate of temperature fall of 90~150 DEG C/h.
9. the technique of layering and zoning material cloth production foamed ceramic according to claim 2, which is characterized in that carrying out
When cloth, first bed of material is first formed with the first particle cloth；Again on first bed of material, with second particulate material
Cloth forms second bed of material；Again on second bed of material, the third bed of material is formed with the third particulate material；Wherein, described
The thickness ratio of first bed of material, second bed of material and the third bed of material is 1:0.8~1.2:0.8~1.2；
Preferably, when first bed of material is arranged, by the first particulate material cloth in the central area of first bed of material, by second
Surrounding of the pellet cloth in first bed of material, wherein the length and width of central area are the 2/3~1 of the first bed of material entirety length and width.
10. a kind of foamed ceramic material, which is characterized in that by material cloth in layering and zoning according to any one of claims 1 to 9
The technique of production foamed ceramic is prepared.
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| CN112010642A (en) * | 2019-05-30 | 2020-12-01 | 广东金意陶陶瓷集团有限公司 | Production process of foamed ceramic secondary cloth |
| CN112209624A (en) * | 2019-07-11 | 2021-01-12 | 广东金意陶陶瓷集团有限公司 | Foamed ceramic with high thermal stability and fire resistance and preparation method thereof |
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| CN113787589A (en) * | 2021-10-08 | 2021-12-14 | 佛山市雅博陶瓷发展有限公司 | Preparation device and method for foamed ceramic plate |
| CN114211603A (en) * | 2021-12-31 | 2022-03-22 | 广东金绿能科技有限公司 | Layered and partitioned preparation process and material distribution equipment for foamed ceramics |
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