CN108715547A - The preparation method of low heat conductivity pyroceram fibre material - Google Patents
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Abstract
The invention discloses the preparation method of low heat conductivity pyroceram fibre material, method includes：Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling；Then it is added into high mixer, mixes, obtain batch mixing a；Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, batch mixing b is obtained；By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；Spinning fibre is placed in vacuum drying chamber, it is dry；Spinning fibre after drying is put into high temperature sintering furnace, is sintered, ceramic fibre material is obtained.Ceramic fibre material prepared by this method, is applied to the thermal insulation layer of industrial smelting furnace, with low-down thermal conductivity, heat-proof quality is excellent, and can apply in the higher environment of temperature.
Description
Technical field
The present invention relates to technical field of ceramic material more particularly to the preparation sides of low heat conductivity pyroceram fibre material
Method.
Background technology
In industrial smelting furnace, existing be powered by induction coil, using the principle of electromagnetic induction to smelting furnace
Furnace body is heated, since electromagnetic intensity is related to the distance between coil and conductor, i.e., distance between coil and conductor
Closer, electromagnetic induction is stronger, and heating efficiency is higher.
But hypotelorism between coil and conductor, the heat of conductor temp.-elevating can be transmitted on induction coil, cause to incude
Coil resistance increase, coil by electric current reduce, electromagnetic induction efficiency reduce, while calorific value increase, cause induction coil
Coil when serious, may be blown, cause the consequence of fire by vicious circle.
In existing industrial smelting furnace, generally kept apart using insulating layer, the heat to reduce coil and conductor is handed over
It changes, still, its heat insulation of existing insulating layer is unsatisfactory, and high temperature resistance is poor.
Invention content
In view of this, the present invention provides the preparation methods of low heat conductivity pyroceram fibre material.
The preparation method of low heat conductivity pyroceram fibre material, method include：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 40-60min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 500-600r/min, and incorporation time 15-25min obtains batch mixing a；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed is
240-280r/min stirs 12-18min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 60-70 DEG C, dry 2-4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1100-1400 DEG C, is burnt
3-6h is tied, ceramic fibre material is obtained.
Preferably, the method includes：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 45-56min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 530-580r/min, and incorporation time 17-22min obtains batch mixing a；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed is
250-270r/min stirs 13-16min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 63-67 DEG C, dry 3-4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1160-1340 DEG C, is burnt
4-5h is tied, ceramic fibre material is obtained.
Preferably, the method includes：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 52min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 560r/min, and incorporation time 19min obtains batch mixing a；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed is
260r/min stirs 15min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 64 DEG C, dry 3h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1250 DEG C, 4h is sintered,
Obtain ceramic fibre material.
Preferably, the method further includes being cooled to room temperature ceramic fibre material, polishing molding.
Preferably, the adsorbent is at least one of aluminium oxide, zeolite, natural clay and calcium silicates.
Preferably, the adsorbent is the mixing of aluminium oxide and natural clay.
Preferably, the bonding agent is boron glass or gas-phase silica.
Preferably, the foaming agent is sodium metasilicate.
Preferably, the water is deionized water.
The beneficial effects of the present invention are：This method prepare ceramic fibre material, be applied to industrial smelting furnace every
Thermosphere, with low-down thermal conductivity, heat-proof quality is excellent, and can apply in the higher environment of temperature.
Specific implementation mode：
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
It should be appreciated that ought use in this specification and in the appended claims, term " comprising " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, element, component and/or its presence or addition gathered.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combinations and all possible combinations of one or more of associated item listed, and includes these combinations.
Embodiment 1
Low heat conductivity pyroceram fibre material, by being formed as follows by mass component：
The preparation method of low heat conductivity pyroceram fibre material：
Weigh alumina silicate, magnesium sulfate, glass fibre, titanium boride, silicon carbide, aluminium oxide, boron glass, the sodium metasilicate of component amount
And deionized water；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 40min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 600r/min, and incorporation time 15min obtains batch mixing a；
Batch mixing a is added into deionized water, while aluminium oxide, boron glass and sodium metasilicate is added, is stirred, is stirred
Speed is 240r/min, stirs 18min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 60 DEG C, dry 4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1100 DEG C, 6h is sintered,
Obtain ceramic fibre material；
Ceramic fibre material is cooled to room temperature, polishing molding.
Embodiment 2
Low heat conductivity pyroceram fibre material, by being formed as follows by mass component：
The preparation method of low heat conductivity pyroceram fibre material：
Weigh alumina silicate, magnesium sulfate, glass fibre, titanium boride, silicon carbide, zeolite, gas-phase silica, the silicic acid of component amount
Sodium and deionized water；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 56min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 530r/min, and incorporation time 22min obtains batch mixing a；
Batch mixing a is added into deionized water, while zeolite, gas-phase silica and sodium metasilicate is added, is stirred, stirs
It is 270r/min to mix speed, stirs 13min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 63 DEG C, dry 3h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1340 DEG C, 4h is sintered,
Obtain ceramic fibre material；
Ceramic fibre material is cooled to room temperature, polishing molding.
Embodiment 3
Low heat conductivity pyroceram fibre material, by being formed as follows by mass component：
The preparation method of low heat conductivity pyroceram fibre material：
Weigh component amount alumina silicate, magnesium sulfate, glass fibre, titanium boride, silicon carbide, aluminium oxide and natural clay,
Boron glass, sodium metasilicate and deionized water；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 60min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 500r/min, and incorporation time 25min obtains batch mixing a；
Batch mixing a is added into deionized water, while aluminium oxide and natural clay, boron glass and sodium metasilicate is added,
It is stirred, mixing speed 280r/min, stirs 12min, obtain batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 70 DEG C, dry 2h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1400 DEG C, 3h is sintered,
Obtain ceramic fibre material；
Ceramic fibre material is cooled to room temperature, polishing molding.
Embodiment 4
Low heat conductivity pyroceram fibre material, by being formed as follows by mass component：
The preparation method of low heat conductivity pyroceram fibre material：
Weigh the alumina silicate of component amount, magnesium sulfate, glass fibre, titanium boride, silicon carbide, natural clay, gas-phase silica,
Sodium metasilicate and deionized water；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 45min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 580r/min, and incorporation time 17min obtains batch mixing a；
Batch mixing a is added into deionized water, while natural clay, gas-phase silica and sodium metasilicate is added, is stirred
It mixes, mixing speed 250r/min, stirs 16min, obtain batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 67 DEG C, dry 4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1160 DEG C, 5h is sintered,
Obtain ceramic fibre material；
Ceramic fibre material is cooled to room temperature, polishing molding.
Embodiment 5
Low heat conductivity pyroceram fibre material, by being formed as follows by mass component：
The preparation method of low heat conductivity pyroceram fibre material：
Weigh alumina silicate, magnesium sulfate, glass fibre, titanium boride, silicon carbide, calcium silicates, gas-phase silica, the silicon of component amount
Sour sodium and deionized water；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 52min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, is mixed
Speed is 560r/min, and incorporation time 19min obtains batch mixing a；
Batch mixing a is added into deionized water, while calcium silicates, gas-phase silica and sodium metasilicate is added, is stirred,
Mixing speed is 260r/min, stirs 15min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 64 DEG C, dry 3h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1250 DEG C, 4h is sintered,
Obtain ceramic fibre material；
Ceramic fibre material is cooled to room temperature, polishing molding.
Ceramic fibre material prepared by embodiment 1-5 preparation methods, is compared, respectively with commercially available thermal insulation material
Thermal insulation material 1 and thermal insulation material 2, test its thermal conductivity and heat resistance, test result is as follows：
The ceramic fibre material that can be seen that embodiment 1-5 according to the data in performance test table, with commercially available thermal insulating material
Material carry out high temperature resistance and thermal conductivity ratio compared with, the ceramic fibre material of embodiment 1-5 can be resistant to 1800 DEG C of temperature,
And its thermal conductivity can have greatly improved down to 0.15W/mK, more existing thermal insulation material in performance.
It is to specific embodiment provided by the present invention above.
The present invention is described in detail in specification, structural principle of the specific case used herein to the present invention
And embodiment is expounded, above example is merely used to help understand the method and its core concept of the present invention；Meanwhile
For those of ordinary skill in the art, according to the thought of the present invention, has change in specific embodiments and applications
Become place, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (9)
1. the preparation method of low heat conductivity pyroceram fibre material, which is characterized in that method includes：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 40-60min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, mixing velocity
Batch mixing a is obtained for 500-600r/min, incorporation time 15-25min；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed 240-
280r/min stirs 12-18min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 60-70 DEG C, dry 2-4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1100-1400 DEG C, 3- is sintered
6h obtains ceramic fibre material.
2. preparation method according to claim 1, which is characterized in that the method includes：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 45-56min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, mixing velocity
Batch mixing a is obtained for 530-580r/min, incorporation time 17-22min；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed 250-
270r/min stirs 13-16min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 63-67 DEG C, dry 3-4h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1160-1340 DEG C, 4- is sintered
5h obtains ceramic fibre material.
3. preparation method according to claim 2, which is characterized in that the method includes：
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide are added into ball mill, ball milling 52min；
Alumina silicate, magnesium sulfate, glass fibre, titanium boride and silicon carbide after ball milling is added into high mixer, mixing velocity
Batch mixing a is obtained for 560r/min, incorporation time 19min；
Batch mixing a is added into water, while adsorbent, bonding agent and foaming agent is added, is stirred, mixing speed is
260r/min stirs 15min, obtains batch mixing b；
By batch mixing b by method of electrostatic spinning, spinning is carried out to ceramic raw material combination liquid, to obtain spinning fibre；
Spinning fibre is placed in vacuum drying chamber, drying temperature is 64 DEG C, dry 3h；
Spinning fibre after drying is put into high temperature sintering furnace, is sintered at a temperature of 1250 DEG C, 4h is sintered, obtains
Ceramic fibre material.
4. according to any preparation methods of claim 1-3, which is characterized in that the method further includes by ceramic fibre material
Material is cooled to room temperature, polishing molding.
5. according to any preparation methods of claim 1-3, it is characterised in that：The adsorbent is aluminium oxide, zeolite, day
Right at least one of clay and calcium silicates.
6. preparation method according to claim 5, it is characterised in that：The adsorbent is aluminium oxide and natural clay
Mixing.
7. according to any preparation methods of claim 1-3, it is characterised in that：The bonding agent is boron glass or gas phase
White carbon.
8. according to any preparation methods of claim 1-3, it is characterised in that：The foaming agent is sodium metasilicate.
9. according to any preparation methods of claim 1-3, it is characterised in that：The water is deionized water.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352251A (en) * | 2018-12-20 | 2019-02-19 | 南通理工学院 | Clamping device for welding special-shaped pipes |
| CN111609252A (en) * | 2020-06-04 | 2020-09-01 | 山东金石节能材料有限公司 | Low-thermal-conductivity heat insulation material and preparation method thereof |
| CN113644379A (en) * | 2021-01-18 | 2021-11-12 | 华南理工大学 | Porous ceramic fiber diaphragm material for thermal battery and preparation method thereof |
| CN115475568A (en) * | 2022-09-15 | 2022-12-16 | 南通恩普热能技术有限公司 | Preparation device and preparation method of high-temperature-resistant ceramic fiber material |
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| CN106565251A (en) * | 2016-10-10 | 2017-04-19 | 长兴富峰高温材料有限公司 | High-strength lightweight refractory fiber and preparation method thereof |
| CN107216081A (en) * | 2017-08-02 | 2017-09-29 | 合肥帧讯低温科技有限公司 | Novel fireproof wall thermal insulation material and preparation method thereof |
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| CN104496469A (en) * | 2014-12-18 | 2015-04-08 | 西安理工大学 | Method for preparing dense micro/nano ceramic fiber by virtue of coaxial electrospinning technology |
| CN106565251A (en) * | 2016-10-10 | 2017-04-19 | 长兴富峰高温材料有限公司 | High-strength lightweight refractory fiber and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352251A (en) * | 2018-12-20 | 2019-02-19 | 南通理工学院 | Clamping device for welding special-shaped pipes |
| CN111609252A (en) * | 2020-06-04 | 2020-09-01 | 山东金石节能材料有限公司 | Low-thermal-conductivity heat insulation material and preparation method thereof |
| CN113644379A (en) * | 2021-01-18 | 2021-11-12 | 华南理工大学 | Porous ceramic fiber diaphragm material for thermal battery and preparation method thereof |
| CN115475568A (en) * | 2022-09-15 | 2022-12-16 | 南通恩普热能技术有限公司 | Preparation device and preparation method of high-temperature-resistant ceramic fiber material |
| CN115475568B (en) * | 2022-09-15 | 2023-11-07 | 南通恩普热能技术有限公司 | Preparation device and preparation method of high-temperature-resistant ceramic fiber material |
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