CN108275982A - Effective tri compound ceramics of ceramic heat and preparation method thereof and its application - Google Patents
Effective tri compound ceramics of ceramic heat and preparation method thereof and its application Download PDFInfo
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- 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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- 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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- 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
- C04B35/64—Burning or sintering processes
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- 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
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3865—Aluminium nitrides
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- 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
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- 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
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- 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
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6582—Hydrogen containing atmosphere
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Abstract
The present invention relates to ceramic heating pipe technical field, especially a kind of effective tri compound ceramics of ceramic heat and preparation method thereof and its application.A kind of tri compound ceramics, include following ingredient according to mass fraction：55 58 parts of alumina powder, 2.5 4.5 parts of sintering aid, aluminum nitride powder 25 35, tungsten powder 8 12.The standby ceramic heating pipe of this tri compound ceramic system uses 92 96 aluminium oxide aluminium nitride tungsten tri compound ceramics to be designed for matrix, and by proportion optimizing, the 92 96 aluminium oxide aluminium nitride tungsten tri compound ceramics coefficient of thermal expansion prepared under equal conditions reduce（5‑6×10E‑6/℃）, thermal conductivity increases（30‑40W/m.k）, product thermal shock resistance greatly improves, so as to bear 300 DEG C 5 DEG C cold water chilling but, when tri compound ceramics being used to design Intelligent bathroom ceramic heating pipe for matrix, power density bigger, volume is more small and beautiful, while product reliability increases.
Description
Technical field
The present invention relates to ceramic heating pipe technical field, especially a kind of effective tri compound of ceramic heat is ceramic and its makes
Preparation Method and its application.
Background technology
Sanitary ware industry designs production with the equal 92-96 aluminium oxide ceramics of traditional ceramics heating tube for matrix at present.Due to 92-96
Aluminium oxide ceramics coefficient of thermal expansion is larger（7-8×10E-6/℃）, thermal conductivity is relatively low（15-18W/m.k）, traditional ceramics is caused to add
Heat pipe thermal shock resistance is inadequate, can only bear the chilling of 200 DEG C -5 DEG C of cold water but, product power density is relatively low.It is enough to ensure
Power, product can only be that volume is big in design, heavy, and reliability reduces in the use of Intelligent bathroom product.
Invention content
Insufficient existing for existing ceramic heating pipe in order to overcome, it is multiple that the present invention provides a kind of effective ternarys of ceramic heat
Close ceramics and preparation method thereof and its application.
The technical solution adopted by the present invention to solve the technical problems is：A kind of tri compound ceramics, according to mass fraction
Including following ingredient：55-58 parts of alumina powder, 2.5-4.5 parts, aluminum nitride powder 25-35, tungsten powder 8-12 of sintering aid.
According to another embodiment of the invention, further comprise, the granularity of alumina powder, aluminum nitride powder and tungsten powder is
D50：1-3 microns.
According to another embodiment of the invention, further comprise, sintering aid is mixed by calcium carbonate, magnesia and silica
It closes, the ratio between calcium carbonate, magnesia and silica is 0.8-1.2：0.8-1.2:3-5.
A kind of preparation method of tri compound ceramics, by above-mentioned photograph proportioning, additionally adding 30-40 parts of water is placed in ball mill
In mixed, then then using baking oven dry, temperature：110-130 DEG C is prepared into tri compound ceramic powder.
According to another embodiment of the invention, further comprise, additionally added by above-mentioned tri compound ceramic powder
30-40 parts of organic solvents and 8-12 parts of bonding agents are placed in ball mill to carry out mixing to be placed in ball mill and be mixed, after mixing
Slurry flexible ceramic raw cook is prepared by casting technique.Wherein organic solvent is the mixture of ethyl alcohol and butanone, bonding agent
For PVB polyvinyl butyrals.
A kind of high power density ceramic heating pipe based on tri compound ceramic making, biscuit of ceramics outer layer are covered with ceramics
The front side end of raw cook, ceramic green sheet has ceramic pad, the back up of ceramic green sheet to have heating circuit, heating circuit and ceramics
Through-hole connection on pad.
A kind of preparation method of heating tube,
Step 1：Biscuit of ceramics manufactures；
Step 2；Ceramic green sheet manufactures；
Step 3；Circuit manufactures.
According to another embodiment of the invention, further comprise, tri compound ceramic powder is passed through into isostatic cool pressing work
Skill prepares earthenware green compact, and pipe thickness is 1-2 millimeters, then by earthenware green compact 1150-1250 DEG C of calcining in air, calcines
Ceramic tube biscuit is made in time 2-4 hour.
According to another embodiment of the invention, further comprise, tri compound ceramic powder is passed through into casting technique system
It it is 0.2-0.7 millimeters for the thickness at flexible ceramic raw cook, flexible ceramic raw cook.
According to another embodiment of the invention, further comprise, in a face type metal tungsten hair of flexible ceramic raw cook
Heater circuit, in the another side printed leads pad of flexible ceramic raw cook, heating circuit and lead pad are coupled with through-hole, will be printed
Ceramic heater green body is made with the outer surface that ceramic glue curly bedding is stacked in ceramic tube biscuit in good flexible ceramic raw cook, will make pottery
Porcelain heater green body 70-80% hydrogen, 20-30% nitrogen in sintering ceramic heater, sintering temperature 1500-1700 is made
DEG C, final finished product.
The invention has the advantages that the ceramic heating pipe that this tri compound ceramic system is standby, using 92-96 aluminium oxide-
Aluminium nitride-tungsten tri compound ceramics design for matrix, by proportion optimizing, 92-96 aluminium oxide-nitridation for being prepared under equal conditions
Aluminium-tungsten tri compound ceramics coefficient of thermal expansion reduces（5-6×10E-6/℃）, thermal conductivity increases（30-40W/m.k）, product is anti-
Thermal shock resistance greatly improves, so as to bear 300 DEG C -5 DEG C cold water chilling but, use tri compound ceramics to be designed for matrix
When Intelligent bathroom ceramic heating pipe, power density bigger, volume is more small and beautiful, while product reliability increases.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the raw cook front view of the present invention；
Fig. 3 is the raw cook rear view of the present invention；
1, biscuit of ceramics in figure, 2, ceramic green sheet, 3, ceramic pad, 4, heating circuit, 5, through-hole.
Specific implementation mode
A kind of tri compound ceramics, include following ingredient according to mass fraction：55-58 parts of alumina powder, sintering aid 2.5-
4.5 parts, aluminum nitride powder 25-35, tungsten powder 8-12.
According to another embodiment of the invention, further comprise, the granularity of alumina powder, aluminum nitride powder and tungsten powder is
D50：1-3 microns.
According to another embodiment of the invention, further comprise, sintering aid is mixed by calcium carbonate, magnesia and silica
It closes, the ratio between calcium carbonate, magnesia and silica is 0.8-1.2：0.8-1.2:3-5.
The embodiment one of this tri compound ceramics：
55 parts of alumina powder, 2.5 parts of sintering aid, aluminum nitride powder 25, tungsten powder 8.
The granularity of alumina powder, aluminum nitride powder and tungsten powder is D50：1 micron.
Sintering aid is mixed by calcium carbonate, magnesia and silica, between calcium carbonate, magnesia and silica
Ratio is 0.8：0.8: 3.
The embodiment two of this tri compound ceramics：
56 parts of alumina powder, 3.5 parts of sintering aid, aluminum nitride powder 30, tungsten powder 10.
The granularity of alumina powder, aluminum nitride powder and tungsten powder is D50：2 microns.
Sintering aid is mixed by calcium carbonate, magnesia and silica, between calcium carbonate, magnesia and silica
Ratio is 1.2：1.2: 4.5.
The embodiment three of this tri compound ceramics：
58 parts of alumina powder, 4.5 parts of sintering aid, aluminum nitride powder 35, tungsten powder 12.
The granularity of alumina powder, aluminum nitride powder and tungsten powder is D50：3 microns.
Sintering aid is mixed by calcium carbonate, magnesia and silica, between calcium carbonate, magnesia and silica
Ratio is： 1：1: 4.
A kind of preparation method of tri compound ceramics, by above-mentioned photograph proportioning, additionally adding 30-40 parts of water is placed in ball mill
In mixed, then then using baking oven dry, temperature：110-130 DEG C is prepared into tri compound ceramic powder.
After tri compound ceramic powder is by calcine technology made from the preparation method, ceramic tube biscuit is made.
According to another embodiment of the invention, further comprise, by it is above-mentioned according to proportioning additionally add 30-40 parts it is organic
Solvent and 8-12 parts of bonding agents are placed in ball mill to carry out mixing to be placed in ball mill and be mixed, and mixed slurry passes through stream
Prolong technique and be prepared into flexible ceramic raw cook, wherein organic solvent is the mixture of ethyl alcohol and butanone, and bonding agent is PVB polyvinyl alcohol
Butyral.
The embodiment of the preparation method of tri compound ceramics：
The ratio of ethyl alcohol and butanone is 1:1
A kind of high power density ceramic heating pipe based on tri compound ceramic making, 1 outer layer of biscuit of ceramics are covered with ceramic green
Piece 2, the front side end of ceramic green sheet 2 have a ceramic pad 3, and the back up of ceramic green sheet 2 has a heating circuit 4, heating circuit 4 with
Through-hole 5 on ceramic pad 3 connects.
A kind of preparation method of heating tube,
Step 1：Biscuit of ceramics manufactures；
Step 2；Ceramic green sheet manufactures；
Step 3；Circuit manufactures.
According to another embodiment of the invention, further comprise, tri compound ceramic powder is passed through into isostatic cool pressing work
Skill prepares earthenware green compact, and pipe thickness is 1-2 millimeters, then by earthenware green compact 1150-1250 DEG C of calcining in air, calcines
Ceramic tube biscuit is made in time 2-4 hour.
According to another embodiment of the invention, further comprise, tri compound ceramic powder is passed through into casting technique system
It it is 0.2-0.7 millimeters for the thickness at flexible ceramic raw cook, flexible ceramic raw cook.
According to another embodiment of the invention, further comprise, in a face type metal tungsten hair of flexible ceramic raw cook
Heater circuit, in the another side printed leads pad of flexible ceramic raw cook, heating circuit and lead pad are coupled with through-hole, will be printed
Ceramic heater green body is made with the outer surface that ceramic glue curly bedding is stacked in ceramic tube biscuit in good flexible ceramic raw cook, will make pottery
Porcelain heater green body 70-80% hydrogen, 20-30% nitrogen in sintering ceramic heater, sintering temperature 1500-1700 is made
DEG C, final finished product.
The embodiment one of the preparation method of heating tube：
The thickness of earthenware green compact be 1 millimeter, by earthenware green compact in air 1150 DEG C carry out calcining ceramic tube biscuit is made；
Tri compound ceramic powder is prepared into flexible ceramic raw cook by casting technique, and the thickness of flexible ceramic raw cook is 0.2 milli
Rice；
One face type metal tungsten heating circuit of flexible ceramic raw cook, in the another side printed leads pad of flexible ceramic raw cook, hair
Heater circuit and lead pad are coupled with through-hole, and the flexible ceramic raw cook printed is stacked in ceramic tube element with ceramic glue curly bedding
Ceramic heater green body is made in the outer surface of base, by ceramic heater green body 70% hydrogen, 30% nitrogen in sintering pottery is made
Porcelain heater, 1500 DEG C of sintering temperature, final finished product.
The embodiment two of the preparation method of heating tube：
The thickness of earthenware green compact be 2 millimeters, by earthenware green compact in air 1200 DEG C carry out calcining ceramic tube biscuit is made；
Tri compound ceramic powder is prepared into flexible ceramic raw cook by casting technique, and the thickness of flexible ceramic raw cook is 0.4 milli
Rice；
One face type metal tungsten heating circuit of flexible ceramic raw cook, in the another side printed leads pad of flexible ceramic raw cook, hair
Heater circuit and lead pad are coupled with through-hole, and the flexible ceramic raw cook printed is stacked in ceramic tube element with ceramic glue curly bedding
Ceramic heater green body is made in the outer surface of base, by ceramic heater green body 80% hydrogen, 20% nitrogen in sintering pottery is made
Porcelain heater, 1600 DEG C of sintering temperature, final finished product.
The embodiment three of the preparation method of heating tube：
The thickness of earthenware green compact be 1.5 millimeters, by earthenware green compact in air 1200 DEG C carry out calcining be made ceramic tube element
Base；
Tri compound ceramic powder is prepared into flexible ceramic raw cook by casting technique, and the thickness of flexible ceramic raw cook is 0.7 milli
Rice；
One face type metal tungsten heating circuit of flexible ceramic raw cook, in the another side printed leads pad of flexible ceramic raw cook, hair
Heater circuit and lead pad are coupled with through-hole, and the flexible ceramic raw cook printed is stacked in ceramic tube element with ceramic glue curly bedding
Ceramic heater green body is made in the outer surface of base, by ceramic heater green body 75% hydrogen, 25% nitrogen in sintering pottery is made
Porcelain heater, 1700 DEG C of sintering temperature, final finished product.
Described above to be merely exemplary for the purpose of the present invention, and not restrictive, those of ordinary skill in the art understand,
In the case where not departing from spirit and scope as defined in the appended claims, many modifications, variation or equivalent can be made, but all
It will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of tri compound ceramics, characterized in that according to mass fraction include following ingredient：55-58 parts of alumina powder, helps burning
2.5-4.5 parts, aluminum nitride powder 25-35, tungsten powder 8-12 of agent.
2. the effective tri compound ceramics of high power density ceramic heat according to claim 1, characterized in that aluminium oxide
The granularity of powder, aluminum nitride powder and tungsten powder is D50：1-3 microns.
3. the effective tri compound ceramics of high power density ceramic heat according to claim 1, characterized in that sintering aid by
Calcium carbonate, magnesia and silica mix, and the ratio between calcium carbonate, magnesia and silica is 0.8-1.2：
0.8-1.2：3-5.
4. a kind of preparation method of Claim 1-3 any one of them tri compound ceramics, characterized in that match by above-mentioned shine
It is placed in ball mill than additionally adding 30-40 parts of water and is mixed, then dried using baking oven, temperature：110-130 DEG C of preparation
At tri compound ceramic powder.
5. the preparation method of tri compound ceramics according to claim 4, characterized in that press above-mentioned tri compound ceramic powder
Body additionally adds 30-40 parts of organic solvents and 8-12 parts of bonding agents are placed in ball mill and are mixed, and mixed slurry is logical
It crosses casting technique and is prepared into flexible ceramic raw cook, wherein organic solvent is the mixture of ethyl alcohol and butanone, and bonding agent is the poly- second of PVB
Enol butyral.
6. a kind of high power density ceramic heating pipe based on the tri compound ceramic making described in Claim 1-3, feature
It is：Biscuit of ceramics（1）Outer layer is covered with ceramic green sheet（2）, ceramic green sheet（2）Front side end have ceramic pad（3）, ceramic green
Piece（2）Back up have heating circuit（4）, heating circuit（4）With ceramic pad（3）On through-hole（5）Connection.
7. a kind of preparation method of the heating tube described in claim 6, it is characterized in that：
Step 1：Biscuit of ceramics manufactures；
Step 2；Ceramic green sheet manufactures；
Step 3；Circuit manufactures.
8. the preparation method of heating tube according to claim 7, characterized in that pass through tri compound ceramic powder cold etc.
Static pressure technique prepares earthenware green compact, and pipe thickness is 1-2 millimeters, then earthenware green compact is forged for 1150-1250 DEG C in air
It burns, ceramic tube biscuit is made in 2-4 hours in calcination time.
9. the preparation method of heating tube according to claim 7, characterized in that tri compound ceramic powder is passed through curtain coating
Technique is prepared into flexible ceramic raw cook, and the thickness of flexible ceramic raw cook is 0.2-0.7 millimeters.
10. the preparation method of heating tube according to claim 7, characterized in that printed in the one side of flexible ceramic raw cook
Tungsten heating circuit, in the another side printed leads pad of flexible ceramic raw cook, heating circuit and lead pad are joined with through-hole
It connects, ceramic heater is made with the outer surface that ceramic glue curly bedding is stacked in ceramic tube biscuit in the flexible ceramic raw cook printed
Green body, by ceramic heater green body 70-80% hydrogen, 20-30% nitrogen in sintering ceramic heater, sintering temperature is made
1500-1700 DEG C, final finished product.
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| CN201810121924.5A CN108275982A (en) | 2018-02-07 | 2018-02-07 | Effective tri compound ceramics of ceramic heat and preparation method thereof and its application |
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| CN201810121924.5A CN108275982A (en) | 2018-02-07 | 2018-02-07 | Effective tri compound ceramics of ceramic heat and preparation method thereof and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193882A (en) * | 2019-04-25 | 2019-09-03 | 长沙市西欧电子科技有限公司 | A kind of method of injection moulding production large special ceramic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001486A (en) * | 2006-12-25 | 2007-07-18 | 杨世养 | Preparation method of ceramic heating core for sensor |
| CN102814755A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | Ceramic brown corundum grinding wheel |
| CN107318179A (en) * | 2017-07-20 | 2017-11-03 | 湖北国瓷科技有限公司 | A kind of method that toughened aluminum oxide makes high temperature co-firing heat-generating pipe |
-
2018
- 2018-02-07 CN CN201810121924.5A patent/CN108275982A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101001486A (en) * | 2006-12-25 | 2007-07-18 | 杨世养 | Preparation method of ceramic heating core for sensor |
| CN102814755A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | Ceramic brown corundum grinding wheel |
| CN107318179A (en) * | 2017-07-20 | 2017-11-03 | 湖北国瓷科技有限公司 | A kind of method that toughened aluminum oxide makes high temperature co-firing heat-generating pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193882A (en) * | 2019-04-25 | 2019-09-03 | 长沙市西欧电子科技有限公司 | A kind of method of injection moulding production large special ceramic |
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Application publication date: 20180713 |