CN107793128A - Low expansion ceramic blank and its preparation method and application - Google Patents
Low expansion ceramic blank and its preparation method and application Download PDFInfo
- Publication number
- CN107793128A CN107793128A CN201711086721.9A CN201711086721A CN107793128A CN 107793128 A CN107793128 A CN 107793128A CN 201711086721 A CN201711086721 A CN 201711086721A CN 107793128 A CN107793128 A CN 107793128A
- Authority
- CN
- China
- Prior art keywords
- low expansion
- expansion ceramic
- petalite
- blank
- ceramic blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- 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
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3445—Magnesium silicates, e.g. forsterite
-
- 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
-
- 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
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/606—Drying
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/612—Machining
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Abstract
The present invention provides a kind of preparation method of low expansion ceramic blank, comprises the following steps：Raw material is provided, the raw materials by weight meter includes following components：Cordierite 15%~20%, petalite 16%~20%, talcum 16%~20%, mullite 4%~7% and kaolin 40%~43%；The talcum, the mullite, the kaolin and solvent are subjected to wet ball grinding, the primary blank that D97 in size distribution is 12~15 μm is made；The cordierite, the petalite and the primary blank are subjected to wet ball grinding, the low expansion ceramic blank that D97 in size distribution is 60~80 μm is made.The preparation method not only reduces the dosage of petalite, reduces cost of material, and its obtained low expansion ceramic blank is applied to the relatively low roll forming of equipment cost, and is not limited to use isostatic pressing.
Description
Technical field
The present invention relates to technical field of ceramic material, more particularly to low expansion ceramic blank and preparation method thereof and answers
With.
Background technology
Ceramic material is divided into three classes according to the size of its thermalexpansioncoefficientα：Highly expanded class, middle expansion class and low bulk class,
Wherein, the thermalexpansioncoefficientα ＜ 2 × 10 of low bulk class-6·℃-1.Low expansion ceramic has excellent in terms of resistance to sudden heating
Performance, using very extensive, therefore develop low expansion ceramic and have very important significance.
Traditional low expansion ceramic be using spodumene or petalite as primary raw material, with lithium battery yield increasingly
Increase, be becoming tight the supply day of the lithium ore such as spodumene and petalite, the price of lithium ore also rapidly goes up, and traditional is low swollen
Swollen ceramic cost of material can be in any more.Therefore, develop a kind of lithium ore that not exclusively relies on turns into for the low expansion ceramic of raw material
The Main way of technology development.At present, substitute of the cordierite as spodumene and petalite, its application have very big office
It is sex-limited：Reach the standard of low bulk class to the thermal coefficient of expansion for making ceramic product, then need cordierite shared in ceramic batch
Ratio reach more than 65%, so as to cause the ratio of plastic clay in ceramic batch to be unable to reach more than 40%, therefore this
Ceramic batch is only applicable to the forming processes that dry-pressing formed and isostatic pressing combines.However, isostatic pressing is compared to tradition
Roll forming there is equipment cost high, narrow application range and low production efficiency.
The content of the invention
Based on this, it is necessary to provide it is a kind of reduce lithium ore dosage and suitable for roll forming low expansion ceramic blank
And its preparation method and application.
A kind of preparation method of low expansion ceramic blank, comprises the following steps：
Raw material is provided, raw materials by weight meter includes following components：Cordierite 15%~20%, petalite 16%
~20%, talcum 16%~20%, mullite 4%~7% and kaolin 40%~43%；
Talcum, mullite and kaolin are subjected to wet ball grinding, the primary base that D97 in size distribution is 12~15 μm is made
Material；
Cordierite, petalite and primary blank are subjected to wet ball grinding, it is 60~80 μm that D97 in size distribution, which is made,
Low expansion ceramic blank.
The preparation method reduces the dosage of petalite, reduces cost of material.It is low swollen as made from the preparation method
Swollen ceramic batch is applied to the relatively low roll forming of equipment cost, and is not limited to use isostatic pressing, simultaneously because its component
Particle size difference, it is formed in subsequent sintering procedure by cordierite phase and petalite solid solution crystalline phase
The compound crystalline phase of composition, the thermal coefficient of expansion of final obtained low expansion ceramic is set to meet the standard of low bulk class.
In one of the embodiments, by weight percentage, cordierite be 15%~18%, petalite be 17%~
19%, talcum is 18%~20%, and mullite is 4%~5% and kaolin is 41%~42%.
In one of the embodiments, the particle diameter of cordierite and petalite is 40~80 mesh in raw material, talcum, mullite
It is 200~325 mesh with kaolinic particle diameter.
In one of the embodiments, the spodumene no more than 4% is contained in raw material, the particle diameter of spodumene is 60~100
Mesh.
A kind of low expansion ceramic blank as made from the preparation method of above-mentioned low expansion ceramic blank.
In order that the thermal coefficient of expansion of low expansion ceramic meets the standard of low bulk class made from the low expansion ceramic blank,
Low expansion ceramic blank is made up of the component of two kinds of different-grain diameters：D97 is 12 in talcum, mullite and kaolinic size distribution
~15 μm, distribution of particles is closer, and particle contact surface is bigger, and in subsequent sintering procedure, talcum (in MgO) is not first with coming
Stone and kaolin (in Al2O3) reaction generation magnesium aluminate spinel phase, aluminum-spinel mutually again with talcum, mullite and kaolin
(in SiO2) reaction generation cordierite phase；The granularity of cordierite and petalite be 60~80 μm, distribution of particles loosely,
Grain contact surface is smaller, rear in subsequent sintering procedure that physic-chemical changes occur, and forms cordierite phase and petalite solid solution respectively
Body crystalline phase.The microstructure of low expansion ceramic made from the low expansion ceramic blank is that cordierite phase and petalite solid solution are brilliant
The compound crystalline phase of phase composition, the composite crystal for the single crystalline phase of traditional complex compound, have more preferable heat shock resistance and
Thermal shock resistance, so that the thermal coefficient of expansion of low expansion ceramic meets the standard of low bulk class.In addition, the low expansion ceramic base
Part petalite instead of with cordierite in the component of material, by the control of the content of petalite 16%~20%, reduce
The dosage of petalite, reduces cost of material；Meanwhile the low expansion ceramic blank by the control of the content of cordierite 15%~
20%, so as to which kaolinic content can reach 40%~43%, and then the low expansion ceramic blank can be applied to be rolled into
Type, and isostatic pressing is not limited to, reduce equipment cost.
A kind of application of above-mentioned low expansion ceramic blank in low expansion ceramic is prepared.Above-mentioned preparation method uses low
Expansion ceramic blank has the advantages of cost is low, and obtained low expansion ceramic has the advantages of heat shock resistance and good thermal shock.
In one of the embodiments, the step of low expansion ceramic blank being made into low expansion ceramic includes glazing and glaze firing
Processing step, wherein the temperature for being fired by glaze processing is 1240~1250 DEG C, the time is 2.5~3.5 hours.
Low expansion ceramic made from a kind of above-mentioned low expansion ceramic blank.The low expansion ceramic has good heat-resisting punching
Hit and thermal shock resistance.
Embodiment
For the ease of understanding this patent, this patent will be described more fully below, and give this patent compared with
Good embodiment.But this patent can be realized in many different forms, however it is not limited to embodiment described herein.Phase
Instead, there is provided the purpose of these embodiments is to make the understanding more thorough and comprehensive to the disclosure of this patent.
Unless otherwise defined, all of technologies and scientific terms used here by the article and the technical field of this patent is belonged to
The implication that technical staff is generally understood that is identical.Term used in this patent specification herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in limitation this patent.Term as used herein "and/or" includes one or more phases
The arbitrary and all combination of the Listed Items of pass.
This patent provides the preparation method of the low expansion ceramic blank of an embodiment, including step S110 to S130.
Step S110：The raw material of each component is weighed respectively, and raw materials by weight meter includes following components：Cordierite
15%~20%, petalite 16%~20%, talcum 16%~20%, mullite 4%~7% and kaolin 40%~
43%.
Alternatively, by weight percentage, cordierite is 15%~18%, and petalite is 17%~19%, and talcum is
18%~20%, mullite is 4%~5% and kaolin is 41%~42%.
Further, the particle diameter of cordierite and petalite is 40~80 mesh in raw material, talcum, mullite and kaolinic
Particle diameter is 200~325 mesh.The particle of each component raw material can not be meticulous or excessively thick, otherwise can influence the raw material of other common ball millings
Final size distribution, and then influence the reaction sequence of each component in sintering procedure.
Alternatively, the spodumene no more than 4% is contained in raw material, the particle diameter of spodumene is 60~100 mesh.Spodumene conduct
During the composition of low expansion ceramic blank, some shortcomings in subsequent sintering procedure be present：Spodumene can react with other components
Petalite solid solution crystalline phase is formed, also just consuming should cause brilliant by magnalium point with the component of aluminum-spinel phase reaction
The cordierite that stone phase reaction obtains mutually is reduced, the final heat shock resistance for influenceing low expansion ceramic and thermal shock resistance.Therefore lithium brightness
The content of stone should be controlled rationally in the range of 4%.
Step S120：Talcum, mullite and kaolin are subjected to wet ball grinding, it is 12~15 μ that D97 in size distribution, which is made,
M primary blank.
Specifically, in the step s 120, the mass ratio of the raw material in wet ball grinding, mill ball and solvent is 1：1：1.8, it is molten
Agent is water.
Step S130：Cordierite, petalite and primary blank are subjected to wet ball grinding, D97 in size distribution, which is made, is
60~80 μm of low expansion ceramic blank.
Specifically, in step s 130, also need to add mill ball while cordierite and petalite add primary blank
And water, the mass ratio for ensureing raw material, mill ball and water are 1：1：1.8.
The preparation method reduces the dosage of petalite, reduces cost of material.It is low swollen as made from the preparation method
Swollen ceramic batch is applied to the relatively low roll forming of equipment cost, and is not limited to use isostatic pressing, simultaneously because its component
Particle size difference, it is formed in subsequent sintering procedure by cordierite phase and petalite solid solution crystalline phase
The compound crystalline phase of composition, the thermal coefficient of expansion of final obtained low expansion ceramic is set to meet the standard of low bulk class.
This patent additionally provides the low bulk as made from the preparation method of above-mentioned low expansion ceramic blank of an embodiment
Ceramic batch.
In order that the thermal coefficient of expansion of low expansion ceramic meets the standard of low bulk class made from the low expansion ceramic blank,
The solid phase of low expansion ceramic blank is made up of the component of two kinds of different-grain diameters：In talcum, mullite and kaolinic size distribution
D97 is 12~15 μm, and distribution of particles is closer, and particle contact surface is bigger, in subsequent sintering procedure, talcum (in MgO)
First with mullite and kaolin (in Al2O3) reaction generation magnesium aluminate spinel phase, aluminum-spinel mutually again with talcum, mullite
With kaolin (in SiO2) reaction generation cordierite phase；The granularity of cordierite and petalite is 60~80 μm, distribution of particles
Loosely, particle contact surface is smaller, rear in subsequent sintering procedure that physic-chemical changes occur, and forms cordierite phase and saturating lithium respectively
Feldspar solid solution crystalline phase.The microstructure of low expansion ceramic made from the low expansion ceramic blank is cordierite phase and petalite
The compound crystalline phase of solid solution crystalline phase composition, the composite crystal have preferably resistance to for the single crystalline phase of traditional complex compound
Thermal shock and thermal shock resistance, so that the thermal coefficient of expansion of low expansion ceramic meets the standard of low bulk class.In addition, this is low swollen
Part petalite instead of with cordierite in the component of swollen ceramic batch, by the control of the content of petalite 16%~
20%, reduce the dosage of petalite, reduce cost of material；Meanwhile the low expansion ceramic blank is by the content of cordierite
Control is 15%~20%, and so as to which kaolinic content can reach 40%~43%, and then the low expansion ceramic blank can
Suitable for roll forming, and isostatic pressing is not limited to, reduces equipment cost.
This patent additionally provides application of the above-mentioned low expansion ceramic blank of an embodiment in low expansion ceramic is prepared.
The low expansion ceramic blank that above-mentioned preparation method uses has the advantages of cost is low, and obtained low expansion ceramic has heat shock resistance
And the advantages of good thermal shock.
Specifically, first mud is made by sieving, iron removaling, stirring, dehydration, old and pugging successively in low expansion ceramic blank
Material, then green compact are made through forming processes, low expansion ceramic is fired into then in turn through biscuiting, glazing and glaze, wherein be fired by glaze
Temperature is 1240~1250 DEG C, and the time is 2.5~3.5 hours.Due to the component and its quality percentage of the low expansion ceramic blank
Than and particle diameter, the low expansion ceramic blank is applied to roll forming, reduce production cost；Secondly, low bulk pottery
Porcelain billet material is applied to above-mentioned glaze firing condition, is rapidly fired to so as to realize, finished product is unlikely to deform during being molded, while saves
Energy consumption simultaneously improves production efficiency.
This patent additionally provides low expansion ceramic made from the above-mentioned low expansion ceramic blank of an embodiment.The low bulk
Ceramics have good heat shock resistance and thermal shock resistance.
It is specific embodiment below.
Embodiment 1
Prepare raw material, claim respectively 15kg cordierite, 20kg petalite, 20kg talcum, 4kg mullite and
41kg kaolin, the wherein particle diameter of cordierite and petalite raw material are 40 mesh, the grain of talcum, mullite and kaolin starting material
Footpath is 200 mesh.
Talcum, mullite and kaolinic raw material are added into ball mill, while add 65kg mill ball and 117kg
Water, wet-milling is carried out, slurry is detected with particle size analyzer, it is when D97 reaches 12 μm in the size distribution in slurry, i.e., obtained
Primary blank.
Cordierite and petalite raw material are added into primary blank, while add 35kg mill ball and 63kg water, after
It is continuous to carry out wet-milling, slurry is detected with particle size analyzer；When D97 reaches 60 μm in the size distribution in slurry, stop ball milling,
Obtain low expansion ceramic blank.
The vibratory sieve that low expansion ceramic blank is first passed through to 150 mesh is sieved, and removes the excessive particle of particle diameter.
Then wet magnetic separation is carried out by magnetic separator, removes the irony in slurry.
Filter-press dehydration is carried out again, is removed the most of moisture in slurry, is obtained pug.
Pug is first carried out old, make moisture in pug and each component more uniform.
Then vacuum pugging is carried out, the air in pug is discharged, improves the density of pug, obtain mud bar.
Mud bar is finally subjected to roll forming, low expansion ceramic green compact are made.
Low expansion ceramic green compact are dried and after repaired biscuit, carry out biscuiting, the temperature of biscuiting is 850 DEG C, is obtained low swollen
Swollen biscuit of ceramics.
After low expansion ceramic biscuit is carried out into fine purifiation and glazing, it is fired by glaze, the temperature of glaze firing is 1240 DEG C, and the time is
3.5 hours, obtain low expansion ceramic.
Embodiment 2
Substantially the same manner as Example 1, difference is：
Raw material includes 20kg cordierite, 16kg petalite, 16kg talcum, 7kg mullite, 40kg kaolinite
The spodumene of soil and 1kg, the wherein particle diameter of cordierite and petalite is 80 mesh, and talcum, mullite and kaolinic particle diameter are
325 mesh, the particle diameter of spodumene is 100 mesh.During wet ball grinding, D97 reaches 15 μm in the size distribution of the particle in primary blank,
D97 reaches 80 μm in the size distribution of particle in low expansion ceramic blank.The temperature of glaze firing is 1250 DEG C, and the time is 2.5 small
When.
Embodiment 3
Substantially the same manner as Example 1, difference is：
Raw material includes 18kg cordierite, 17kg petalite, 18kg talcum, 4kg mullite, 42kg kaolinite
The spodumene of soil and 1kg, the wherein particle diameter of cordierite and petalite raw material are 60 mesh, talcum, mullite and kaolin starting material
Particle diameter be 250 mesh, the particle diameter of spodumene is 60 mesh.During wet ball grinding, D97 reaches in the size distribution of the particle in primary blank
To 13 μm, D97 reaches 70 μm in the size distribution of the particle in low expansion ceramic blank.The temperature of glaze firing is 1250 DEG C, the time
For 3.5 hours.
Embodiment 4
Substantially the same manner as Example 1, difference is：
Raw material includes 15kg cordierite, 19kg petalite, 20kg talcum, 5kg mullite and 41kg height
Ridge soil, the wherein particle diameter of cordierite and petalite raw material are 50 mesh, and the particle diameter of talcum, mullite and kaolin starting material is 280
Mesh.During wet ball grinding, D97 reaches 14 μm in the size distribution of the particle in primary blank, the particle in low expansion ceramic blank
Size distribution in D97 reach 65 μm.The temperature of glaze firing is 1240 DEG C, and the time is 2.5 hours.
Comparative example 1
It is consistent with the raw material and its percentage by weight and particle size that embodiment 1 uses, during ball milling by all raw materials once
The common wet-milling of property, D97 reaches 12 μm in the size distribution of obtained blank.Other processes are identical.
Comparative example 2
It is consistent with the raw material and its percentage by weight and particle size that embodiment 1 uses, during ball milling by all raw materials once
The common wet-milling of property, D97 reaches 50 μm in the size distribution of obtained blank.Other processes are identical.
The thermal coefficient of expansion of the low expansion ceramic of the various embodiments described above and comparative example is detected, detection data are shown in Table 1.
Table 1
From the detection data of table 1, because the particle diameter of each component in the low expansion ceramic blank of this patent has differences,
Chemical reaction generation cordierite phase first occurs for small fraction in sintering procedure afterwards, and it is anti-that physics occurs after big fraction
Cordierite phase and petalite solid solution crystalline phase should be generated, final obtained low expansion ceramic is consolidated by cordierite phase and petalite
The compound crystalline phase of solution crystalline phase is formed, and is had relatively low thermal coefficient of expansion, is reached the index of low bulk class.The pottery of comparative example 1 and 2
The particle diameter of each component is not present difference in porcelain billet material, thus in sintering procedure afterwards each component be not present by particle size according to
The secondary process reacted, the compound crystalline phase of cordierite phase and petalite solid solution crystalline phase can not be generated, but generate complexing
The single crystalline phase of thing, obtained ceramic thermal coefficient of expansion are not reaching to the index of low bulk class.
Compared to conventional art, this patent is substituting part petalite to reduce the dosage of petalite with cordierite
Meanwhile ensure that kaolinic mass percent is not less than 40%, so that at the shaping of the low expansion ceramic blank of this patent
Reason is applied to roll forming and is not limited to use isostatic pressing, therefore, is prepared using the low expansion ceramic blank of this patent low
The raw material and equipment cost of expansion ceramic are lower, are more suitable for mass producing.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of this patent, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of this patent
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of preparation method of low expansion ceramic blank, it is characterised in that comprise the following steps：
Raw material is provided, the raw materials by weight meter includes following components：Cordierite 15%~20%, petalite 16%
~20%, talcum 16%~20%, mullite 4%~7% and kaolin 40%~43%；
The talcum, the mullite and the kaolin are subjected to wet ball grinding, it is 12~15 μm that D97 in size distribution, which is made,
Primary blank；
The cordierite, the petalite and the primary blank are subjected to wet ball grinding, it is 60 that D97 in size distribution, which is made,
~80 μm of low expansion ceramic blank.
2. the preparation method of low expansion ceramic blank as claimed in claim 1, it is characterised in that by weight percentage, institute
It is 15%~18% to state cordierite, and the petalite is 17%~19%, and the talcum is 18%~20%, the mullite
It is 41%~42% for 4%~5% and the kaolin.
3. the preparation method of low expansion ceramic blank as claimed in claim 1 or 2, it is characterised in that described in the raw material
The particle diameter of cordierite and the petalite is 40~80 mesh, and the talcum, the mullite and the kaolinic particle diameter are
200~325 mesh.
4. the preparation method of low expansion ceramic blank as claimed in claim 1, it is characterised in that contain in the raw material and do not surpass
4% spodumene is crossed, the particle diameter of the spodumene is 60~100 mesh.
A kind of 5. pottery of the low bulk as made from the preparation method of the low expansion ceramic blank described in Claims 1 to 4 any one
Porcelain billet material.
A kind of 6. application of the low expansion ceramic blank in low expansion ceramic is prepared described in claim 5.
7. application of the low expansion ceramic blank as claimed in claim 6 in low expansion ceramic is prepared, it is characterised in that by institute
Stating the step of low expansion ceramic is made in low expansion ceramic blank includes glazing and glaze firing processing step, wherein the glaze firing processing
Temperature is 1240~1250 DEG C, and the time is 2.5~3.5 hours.
8. low expansion ceramic made from the low expansion ceramic blank described in a kind of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086721.9A CN107793128B (en) | 2017-11-07 | 2017-11-07 | Low-expansion ceramic blank and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086721.9A CN107793128B (en) | 2017-11-07 | 2017-11-07 | Low-expansion ceramic blank and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107793128A true CN107793128A (en) | 2018-03-13 |
| CN107793128B CN107793128B (en) | 2020-03-31 |
Family
ID=61549398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711086721.9A Active CN107793128B (en) | 2017-11-07 | 2017-11-07 | Low-expansion ceramic blank and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107793128B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180203A (en) * | 2018-09-28 | 2019-01-11 | 湖南益嘉瓷业有限公司 | Mud of resistance to chafing dish and preparation method thereof |
| CN109400112A (en) * | 2018-12-31 | 2019-03-01 | 湖南嘉盛电陶新材料股份有限公司 | A kind of production technology of ceramic product |
| CN109456038A (en) * | 2018-12-28 | 2019-03-12 | 卢蝶 | A kind of domestic ceramics and its preparation process |
| CN109503139A (en) * | 2018-12-31 | 2019-03-22 | 湖南嘉盛电陶新材料股份有限公司 | A kind of ceramic liner and liner processing method |
| CN110105060A (en) * | 2019-07-02 | 2019-08-09 | 广东金意陶陶瓷集团有限公司 | A kind of preparation method of low-expansion coefficient ceramic sheet |
| CN113912378A (en) * | 2021-11-24 | 2022-01-11 | 邱小平 | Heat-resistant ceramic and preparation process thereof |
| CN116751043A (en) * | 2023-06-30 | 2023-09-15 | 广州市红日燃具有限公司 | Formula and preparation method of portable butane gas stove ceramic fire cover material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432547A (en) * | 2002-01-15 | 2003-07-30 | 余斌武 | Low-expansion, heat shock-resisting and acidproof ceramic material |
| CN101113093A (en) * | 2007-06-30 | 2008-01-30 | 景德镇陶瓷学院 | Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof |
| CN102485691A (en) * | 2011-11-14 | 2012-06-06 | 邓宗禹 | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method |
-
2017
- 2017-11-07 CN CN201711086721.9A patent/CN107793128B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432547A (en) * | 2002-01-15 | 2003-07-30 | 余斌武 | Low-expansion, heat shock-resisting and acidproof ceramic material |
| CN101113093A (en) * | 2007-06-30 | 2008-01-30 | 景德镇陶瓷学院 | Castorite/cordierite multi-phase low-buckling ceramic and preparation method thereof |
| CN102485691A (en) * | 2011-11-14 | 2012-06-06 | 邓宗禹 | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180203A (en) * | 2018-09-28 | 2019-01-11 | 湖南益嘉瓷业有限公司 | Mud of resistance to chafing dish and preparation method thereof |
| CN109456038A (en) * | 2018-12-28 | 2019-03-12 | 卢蝶 | A kind of domestic ceramics and its preparation process |
| CN109400112A (en) * | 2018-12-31 | 2019-03-01 | 湖南嘉盛电陶新材料股份有限公司 | A kind of production technology of ceramic product |
| CN109503139A (en) * | 2018-12-31 | 2019-03-22 | 湖南嘉盛电陶新材料股份有限公司 | A kind of ceramic liner and liner processing method |
| CN110105060A (en) * | 2019-07-02 | 2019-08-09 | 广东金意陶陶瓷集团有限公司 | A kind of preparation method of low-expansion coefficient ceramic sheet |
| CN113912378A (en) * | 2021-11-24 | 2022-01-11 | 邱小平 | Heat-resistant ceramic and preparation process thereof |
| CN116751043A (en) * | 2023-06-30 | 2023-09-15 | 广州市红日燃具有限公司 | Formula and preparation method of portable butane gas stove ceramic fire cover material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107793128B (en) | 2020-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107793128A (en) | Low expansion ceramic blank and its preparation method and application | |
| CN102485691B (en) | Tile with thermal shock resistance, pressure resistance and acid resistance as well as its manufacturing method | |
| CN102180654B (en) | Process method for producing high-quality medium-alumina ceramic ball by inferior raw material | |
| CN107434411A (en) | Low Jie's high quality factor LTCC microwave dielectric materials and preparation method thereof | |
| CN110204309A (en) | One kind composite diphase material of cordierite-mullite containing zirconium and preparation method thereof | |
| CN110981439A (en) | Microwave ceramic powder, preparation method thereof and application thereof in dielectric filter | |
| CN106588059A (en) | Prefabricated member for lime rotary kiln and preparation method of prefabricated member | |
| CN103613369A (en) | Silicate low-temperature co-fired ceramic substrate material and preparation method thereof | |
| CN105347781B (en) | A kind of ceramic material and preparation method thereof | |
| CN104909725A (en) | Method for preparing aluminum oxide ceramic sphere without fingernail line defect | |
| JPH08283073A (en) | Kiln tool | |
| KR102094198B1 (en) | Silicon carbide high carbon composite material and manufacturing method thereof | |
| CN111393174A (en) | Method for manufacturing M47 refractory material by using fly ash | |
| CN113121214B (en) | Graphite tailing-based microwave dielectric ceramic material and preparation method thereof | |
| CN108191235A (en) | A kind of Bone China Glaze, glaze slip and preparation method | |
| CN101817686B (en) | Doped and modified barium titanate composite particle and preparation method thereof | |
| CN108727019B (en) | Zircon brick and preparation method thereof | |
| CN101891493B (en) | Method for synthesizing mullite refractory | |
| CN110668820A (en) | Preparation method of high-performance carbon graphite product with superfine structure | |
| CN108101506B (en) | Black porcelain product and manufacturing method thereof | |
| CN106396696B (en) | The preparation method of mullite spherical shape aggregate enhancing refractory material | |
| KR101174622B1 (en) | Manufacturing method of mullite using agalmatolite | |
| WO2009114960A1 (en) | A ceramic ball and method for preparing the same | |
| CN103553560A (en) | Method for preparing forsterite from olivine ores | |
| CN107778011A (en) | A kind of preparation method of graphene composite SiC wood ceramics material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Low expansion ceramic blank and its preparation method and Application Effective date of registration: 20210121 Granted publication date: 20200331 Pledgee: Changde Finance Guarantee Co.,Ltd. Pledgor: HUNAN JIASHENG DIANTAO NEW MATERIAL Co.,Ltd. Registration number: Y2021980000603 |