CN106587947A - Preparation process of special ceramic materials - Google Patents
Preparation process of special ceramic materials Download PDFInfo
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- CN106587947A CN106587947A CN201611136423.1A CN201611136423A CN106587947A CN 106587947 A CN106587947 A CN 106587947A CN 201611136423 A CN201611136423 A CN 201611136423A CN 106587947 A CN106587947 A CN 106587947A
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- ball milling
- small powder
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- ceramic material
- paraffin
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- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- 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
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- 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
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- 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
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
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- 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
- C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a preparation process of special ceramic materials. The preparation process comprises the following steps: step one: preparation of a small material: S11, weighing all components according to a ratio of the small material, putting the weighed components into a ball mill and mixing uniformly; S12, filling ball-milled and uniformly mixed small material into a crucible, feeding the crucible into a muffle furnace for melting at high temperature; S13, water-quenching and cooling the molten small material, drying and then ball-milling for standby use; step two, preparation of ceramic materials: S21, weighing alumina powder and the small material prepared in step one at a predetermined proportion, putting the weighed materials into the ball mill for ball-milling and mixing uniformly; S22, filling the ball-milled and uniformly mixed mixture of alumina powder and the small material into a stirring barrel, and adding a predetermined proportion of melted paraffin; S23, stirring fully and uniformly to prepare a paraffin cake. The content of added paraffin is reduced by 25%, so that the discharge of paraffin is easier, and the paraffin flowing and cracking caused by discharge of paraffin are greatly reduced; the temperature for generating a glass phase in high-temperature firing process after pre-melting the small material is greatly reduced, so that sintering is effectively promoted.
Description
Technical field
The present invention relates to electronic ceramics new material technology field, more particularly to a kind of special ceramic material preparing process.
Background technology
In the electronics industry can be using electricity, the referred to as ceramics of magnetic property, electronic ceramics.Electronic ceramics is by table
The control of face, crystal boundary and dimensional structure and finally obtain the ceramics with New function.At aspects such as the energy, household electrical appliance, automobiles
Can extensively apply.
At present, the preparation process of electron ceramic material is typically：Weighing the supplementary material of predetermined ratio carries out ball milling, makes particle diameter
Certain requirement and mix homogeneously are reached, paraffin is subsequently adding and is sufficiently stirred for, make cured cake stand-by.Such preparation process, a side
Face, adds paraffin amount to need about 16%, because paraffin amount is big, causes Wax choked, is also easy to produce the defects such as stream wax, cracking；The opposing party
Face, firing temperature is high, about 1720 °, shrinks big, causes to be also easy to produce the defects such as deformation, cracking in product sintering process；And high temperature burns
Knot also results in kiln and the life-span of kiln furniture material greatly shortens, and production cost is high.
Therefore, inventing a kind of new ceramic material preparing process becomes those skilled in the art institute urgent problem.
The content of the invention
In order to solve problem of the prior art, special ceramic material preparing process is embodiments provided.The skill
Art scheme is as follows：
There is provided a kind of special ceramic material preparing process, comprise the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform；
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
S23, stirs, and makes cured cake stand-by.
Further, in the S11 of step one, the temperature control in ball grinder continues ball milling 18～22 at 45 DEG C～50 DEG C
Hour.
Further, in the S12 of step one, melt temperature of the small powder in Muffle furnace is controlled at 1620 DEG C～1650 DEG C,
Melting time is controlled to 3～5 hours.
Further, in the S13 of step one, the small powder Jing after melting and cool down, the ball milling 20 under the conditions of 25 DEG C～30 DEG C
～25 hours, the small powder Particle size requirements after ball milling were 1.0～3.0um.
Further, in the S21 of step 2, the alumina powder and small powder ball milling 12～15 under the conditions of 25 DEG C～30 DEG C together
Hour, fully mixing is made, and make the stone size after ball milling be 200～300nm.
Further, in the S22 of step 2, the addition of melted paraffin is the 10%～13% of compound weight, stirring temperature
Degree control is at 30 DEG C～35 DEG C.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
Prepared by small powder and compound substep, because small powder is through molten process, add paraffin amount to be down to 12% by 16% left
The right side, paraffin addition reduces 25%, and de-waxing is more easy, and the stream wax, cracking produced by de-waxing is greatly lowered, de-waxing percent defective drop
Low by more than 50%, small powder produces the temperature of glass phase in high temperature sintering process Jing after pre-fusion and is greatly lowered, and effectively promotes
Sintering so that firing temperature is down to 1620 DEG C～1650 DEG C by 1720 DEG C or so, greatly reduces the energy consumption burnt till, and extends kiln
The service life of stove and kiln furniture material.
Small powder pre-fusion has fulfiled the portion retracts that high temperature is produced ahead of schedule, and the contraction of burning till of product is down to 12% by 16%
Left and right, improves the useful load of kiln, reduces and burns till because shrinking the defects such as the deformation, the cracking that produce, burns till produced giving up
Product rate reduces 50% or so.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below further is made to embodiment of the present invention
Ground is described in detail.
Embodiment one
A kind of special ceramic material preparing process is present embodiments provided, is comprised the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform；
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
S23, stirs, and makes cured cake stand-by.
Used as preferred embodiment, in the S11 of step one, the temperature control in ball grinder continues at 45 DEG C～50 DEG C
Ball milling 18～22 hours.
In the S12 of step one, at 1620 DEG C～1650 DEG C, the melting time is controlled for melt temperature control of the small powder in Muffle furnace
It is made as 3～5 hours.
In the S13 of step one, the small powder Jing after melting and cool down, the ball milling 20～25 hours under the conditions of 25 DEG C～30 DEG C,
Small powder Particle size requirements after ball milling are 1.0～3.0um.
In the S21 of step 2, alumina powder and small powder ball milling 12～15 hours under the conditions of 25 DEG C～30 DEG C together make to fill
Divide and mix, and make the stone size after ball milling be 200～300nm.
In the S22 of step 2, the addition of melted paraffin is the 10%～13% of compound weight, and whipping temp is controlled 30
DEG C～35 DEG C.
Embodiment two
A kind of special ceramic material preparing process is present embodiments provided, is comprised the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；Temperature control in ball grinder exists
45 DEG C, continue ball milling 20 hours.
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；Small powder is in Muffle furnace
Melt temperature is controlled at 1650 DEG C, and the melting time is controlled to 3.5 hours.
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；Small powder Jing after melting and cool down,
Ball milling 25 hours under the conditions of 30 DEG C, the small powder Particle size requirements after ball milling are 1.5um.
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform.Alumina powder and small powder ball milling 15 hours under the conditions of 30 DEG C together, make fully mixing, and make the compound after ball milling
Particle diameter is 220nm.
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
The addition of melted paraffin is the 12% of compound weight, and whipping temp is controlled at 35 DEG C.
S23, stirs, and makes cured cake stand-by.
Embodiment three
A kind of special ceramic material preparing process is present embodiments provided, is comprised the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；Temperature control in ball grinder exists
50 DEG C, continue ball milling 18 hours.
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；Small powder is in Muffle furnace
Melt temperature is controlled at 1620 DEG C, and the melting time is controlled to 4.5 hours.
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；Small powder Jing after melting and cool down,
Ball milling 22 hours under the conditions of 28 DEG C, the small powder Particle size requirements after ball milling are 2.0um.
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform.Alumina powder and small powder ball milling 13 hours under the conditions of 25 DEG C together, make fully mixing, and make the compound after ball milling
Particle diameter is 250nm.
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
The addition of melted paraffin is the 12.5% of compound weight, and whipping temp is controlled at 32 DEG C.
S23, stirs, and makes cured cake stand-by.
Example IV
A kind of special ceramic material preparing process is present embodiments provided, is comprised the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；Temperature control in ball grinder exists
48 DEG C, continue ball milling 21 hours.
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；Small powder is in Muffle furnace
Melt temperature is controlled at 1635 DEG C, and the melting time is controlled to 4 hours.
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；Small powder Jing after melting and cool down,
Ball milling 23 hours under the conditions of 27.5 DEG C, the small powder Particle size requirements after ball milling are 1.75um.
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform.Alumina powder and small powder ball milling 12 hours under the conditions of 27.5 DEG C together, make fully mixing, and make the mixing after ball milling
Material particle diameter is 225nm.
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
The addition of melted paraffin is the 11.5% of compound weight, and whipping temp is controlled at 32.5 DEG C.
S23, stirs, and makes cured cake stand-by.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of special ceramic material preparing process, it is characterised in that comprise the following steps：
It is prepared by step one, small powder：
S11, by small powder proportioning each component is weighed, and is put into ball milling and mix homogeneously in ball mill；
S12, the small powder after ball milling is mixed loads crucible, sends into high-temperature fusion in Muffle furnace；
S13, by the small powder water quenching cooling after melting, then dries again ball milling stand-by；
Step 2, ceramic material is prepared：
S21, the small powder prepared in the alumina powder and step one that weigh predetermined ratio, be put in ball mill be milled to together it is mixed
Close uniform；
S22, the alumina powder and small powder that ball milling is mixed is fitted in agitator, and adds the melted paraffin of predetermined ratio；
S23, stirs, and makes cured cake stand-by.
2. special ceramic material preparing process according to claim 1, it is characterised in that in the S11 of step one, ball grinder
Interior temperature control continues ball milling 18～22 hours at 45 DEG C～50 DEG C.
3. special ceramic material preparing process according to claim 2, it is characterised in that in the S12 of step one, small powder exists
Melt temperature in Muffle furnace is controlled at 1620 DEG C～1650 DEG C, and the melting time is controlled to 3～5 hours.
4. special ceramic material preparing process according to claim 3, it is characterised in that in the S13 of step one, Jing meltings
And cool down after small powder, the ball milling 20～25 hours under the conditions of 25 DEG C～30 DEG C, the small powder Particle size requirements after ball milling be 1.0～
3.0um。
5. special ceramic material preparing process according to claim 1, it is characterised in that in the S21 of step 2, aluminium oxide
Powder and small powder ball milling 12～15 hours under the conditions of 25 DEG C～30 DEG C together, make fully mixing, and make the compound grain after ball milling
Footpath is 200～300nm.
6. special ceramic material preparing process according to claim 5, it is characterised in that in the S22 of step 2, melts stone
The addition of wax is the 10%～13% of compound weight, and whipping temp is controlled at 30 DEG C～35 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136423.1A CN106587947A (en) | 2016-12-12 | 2016-12-12 | Preparation process of special ceramic materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136423.1A CN106587947A (en) | 2016-12-12 | 2016-12-12 | Preparation process of special ceramic materials |
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| CN106587947A true CN106587947A (en) | 2017-04-26 |
Family
ID=58599131
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| CN201611136423.1A Pending CN106587947A (en) | 2016-12-12 | 2016-12-12 | Preparation process of special ceramic materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204315A (en) * | 2019-06-21 | 2019-09-06 | 景德镇景华特种陶瓷有限公司 | A kind of preparation method of aluminium oxide ceramics |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626480A (en) * | 2013-12-06 | 2014-03-12 | 新化县鑫天电子陶瓷有限公司 | Alumina ceramic low in sintering temperature and preparation method thereof |
| CN103880458A (en) * | 2014-01-22 | 2014-06-25 | 龙口市正阳特种耐火材料有限公司 | Preparation method of zirconia ceramics fiber-reinforced 99 alumina ceramic crucible |
| CN104402413A (en) * | 2014-10-29 | 2015-03-11 | 安徽省皖捷液压科技有限公司 | High-toughness ceramic nozzle and manufacturing method thereof |
| CN104844164A (en) * | 2014-02-18 | 2015-08-19 | 新化县恒睿电子陶瓷科技有限公司 | Formula and preparation method of high-heat conduction self-glazing ceramic |
-
2016
- 2016-12-12 CN CN201611136423.1A patent/CN106587947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626480A (en) * | 2013-12-06 | 2014-03-12 | 新化县鑫天电子陶瓷有限公司 | Alumina ceramic low in sintering temperature and preparation method thereof |
| CN103880458A (en) * | 2014-01-22 | 2014-06-25 | 龙口市正阳特种耐火材料有限公司 | Preparation method of zirconia ceramics fiber-reinforced 99 alumina ceramic crucible |
| CN104844164A (en) * | 2014-02-18 | 2015-08-19 | 新化县恒睿电子陶瓷科技有限公司 | Formula and preparation method of high-heat conduction self-glazing ceramic |
| CN104402413A (en) * | 2014-10-29 | 2015-03-11 | 安徽省皖捷液压科技有限公司 | High-toughness ceramic nozzle and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204315A (en) * | 2019-06-21 | 2019-09-06 | 景德镇景华特种陶瓷有限公司 | A kind of preparation method of aluminium oxide ceramics |
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Application publication date: 20170426 |