CN110467434A - The preparation method of skeleton coated electric heating function ceramics, product and application method - Google Patents
The preparation method of skeleton coated electric heating function ceramics, product and application method Download PDFInfo
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- CN110467434A CN110467434A CN201910649904.XA CN201910649904A CN110467434A CN 110467434 A CN110467434 A CN 110467434A CN 201910649904 A CN201910649904 A CN 201910649904A CN 110467434 A CN110467434 A CN 110467434A
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
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Abstract
A kind of preparation method of skeleton coated electric heating function ceramics, first weaved with single fiber to obtain fabric, single fiber is polyacrylonitrile fibre, cellulose fibre, protein fibre, pitch fibers, any one in resin fibre, change the form of fabric on demand again to obtain base core crab, changing technique includes cutting, stacking, any one in suture or any combination, then ceramic forerunner is enclosed with to obtain formed body in the outside of base core crab, formed body is sent into ceramic kiln again, then formed body is sintered under the conditions of oxygen barrier to obtain the electric heating function ceramics.Not only electric heating utilization rate is higher by the design, will not generate electromagnetic radiation as waves, and safety is stronger, be suitable for large-scale production.
Description
Technical field
Ceramic the present invention relates to a kind of production technology of function ceramics more particularly to a kind of skeleton coated electric heating function
Preparation method, product and application method improve electric heating utilization rate it is particularly applicable to enhance heat conduction efficiency.
Background technique
Function ceramics refers to the ceramics for mainly utilizing its non-mechanical property in application, usually has one or more
Function.
In traditional ground heating type heating, (line with heating function is substantially all by metallic resistance for embedded line with heating function usually below ceramic tile
Silk or carbon fiber composition), heat is simultaneously dispersed into interior by line with heating function heating power by ceramic tile surface, is heated to interior
Heat preservation.The technique of this heating power the problem is that: 1. electric heating utilization rate is not high, the heating layer and ceramic tile that line with heating function is formed
Between will form interlayer thermal resistance and hinder；2. construction is complicated, need for line with heating function to be embedded in depths, construction in layer, the period is long；3. constructing
Thickness reduces chamber height.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The purpose of the present invention is overcome the problems, such as the lower defect of electric heating utilization rate existing in the prior art and, one kind is provided
The preparation method of the higher skeleton coated electric heating function ceramics of electric heating utilization rate, product and application method.
In order to achieve the above object, the technical solution of the invention is as follows: a kind of system of skeleton coated electric heating function ceramics
Take method, comprising the following steps:
The first step, base core crab are produced: first being weaved with single fiber to obtain fabric, then changed fabric on demand
For form to obtain base core crab, change technique includes any one or any combination in cutting, be laminated, suturing；The single fiber
It ties up as any one in polyacrylonitrile fibre, cellulose fibre, protein fibre, pitch fibers, resin fibre；
Second step, formed body are produced: it is enclosed with ceramic forerunner in the outside of above-mentioned base core crab to obtain formed body,
The formed body is not loose when standing；The making material of the ceramic forerunner is the mixture of ceramic mud, ceramic powder or both, institute
Stating ceramic mud is the pureed mixture that ceramic powder and water mix；
Ceramic sinter molding: above-mentioned formed body is first sent into ceramic kiln, then to formed body oxygen barrier by third step
Under the conditions of be sintered, to obtain the electric heating function ceramics.
It is described to be weaved with single fiber to obtain fabric and refer to: first to produce linear yarn with single fiber, then with linear palpus
Item produces fabric；
It is described to produce linear yarn with single fiber and refer to: the processing of multifilament type, the processing of twisted filament type, in spinning type processing
Any one or any combination；
It is described to produce fabric with linear yarn and refer to: the processing of woven fabric type, the processing of knitted fabric type, non-woven cloth type
Any one in processing or any combination.
The single fiber, linear yarn or fabric are single fiber, linear yarn or the fabric after pre-oxidation, the pre-oxidation
Technique are as follows: single fiber, linear yarn or fabric are placed in aerobic environment and are heated, heating temperature is 200-350 DEG C, when heating
Between be 0.5-4 hour.
The constituent and its weight part ratio of the ceramic powder are as follows: silica 40-70, aluminum oxide 10-30 are remaining
Material 2-20, the clout are sodium oxide molybdena, potassium oxide, calcium oxide, any one or any combination in titanium dioxide.
The ceramic powder produce raw material be kaolin, receive feldspar, potassium feldspar, quartz, mica, spodumene, montmorillonite, she
Sharp stone, talcum, any one or any combination in cordierite.
The outside in above-mentioned base core crab is enclosed with ceramic forerunner to obtain formed body and refer to wet process packing technology
Or dry method packing technology；
The wet process packing technology refers to: first producing slurries with ceramic forerunner, then repeats base core crab to slurry
The operation immerse in liquid, taken out from slurries, to obtain hanging body, number of repetition is at least twice, then dry to hanging soma
To obtain formed body；
The dry method packing technology refers to: first base core crab is wrapped among ceramic forerunner, then is pressed,
Pressure is 20-100MPa, is then dried to obtain formed body.
The oxygen barrier condition are as follows: formed body is enclosed in inert gas or formed body is enclosed in charcoal powder, or at
Space around type body is evacuated.
The temperature of the sintering is 1000-1400 DEG C, and the time of sintering is 1-3h.
A kind of electric heating function ceramics, the preparation method according to above-mentioned skeleton coated electric heating function ceramics are made.
A kind of application method of electric heating function ceramics, comprising the following steps: first obtain above-mentioned electric heating function ceramics, then in electricity
Conducting resinl is coated on the front/rear end of heat function ceramics to obtain applying colloid, is then powered to the both ends for applying colloid, is realized and be powered
Fever, or first multiple painting colloids are connected in series to obtain concatermer, then be powered to the both ends of concatermer, realize the hair that is powered
Heat；The voltage of the energization is not higher than 220V.
Compared with prior art, the invention has the benefit that
1, a kind of preparation method of skeleton coated electric heating function ceramics of the present invention, in product and application method, first with
Single fiber produces fabric, then produces base core crab with fabric, is then enclosed with ceramic forerunner in the outside of base core crab to obtain
It is sintered under the conditions of oxygen barrier to formed body, then to formed body, when sintering, the carbonization of base core crab, the formation of ceramics are together
Complete, to obtain including the function ceramics of electric conductor (the base core crab after being carbonized), the advantages of design include: firstly,
Being powered can produce the electric conductor of heat and occupy the inside of ceramics, rather than as the prior art is located at the lower section of ceramic tile, it will not lead
Interlayer thermal resistance is caused to hinder, thermal losses is low, and heat conduction efficiency is high, can be improved electric heating utilization rate；Secondly, electric conductor occupy inside ceramics
Design can ensure that the design in use, being directly laid with, will not both reduce chamber height, also not need as the prior art
Line with heating function is embedded in depths, reduces difficulty of construction, shortens construction period；Again, electric conductor occupy inside ceramics, and makes pottery
Porcelain itself heat conduction non-conducting, itself limit temperature, fire prevention, electrical isolation, has good safety；4th, it is constituted using carbon material
Electric conductor fever, rather than metal generates heat, and will not generate the electromagnetic radiation as waves being harmful to the human body.Therefore, the present invention not only electric heating
Utilization rate is higher, is convenient for construction application, and safety is stronger, will not generate electromagnetic radiation as waves.
2, a kind of preparation method of skeleton coated electric heating function ceramics of the present invention in product and application method, is rolled in
Only base core crab inside ceramic forerunner, in follow-up sintering, base core crab can be just carbonized to become energy heating power
Electric conductor, rather than the resulting electric conductor that will be carbonized is directly placed into ceramics or directly by carbon fiber and manufactures electric conductor, this sets
The advantages of meter includes: not need specially to produce carbon fiber, cost is extremely low firstly, eliminate special carbon fiber manufacture link
It is honest and clean；Secondly, the easy brittle failure dispersion of carbon fiber, is not easy to be placed directly within inside formed body, unless using special auxiliary agent to carbon fiber
Dimension is pre-processed；Again, carbon fiber is not easy to be made into fabric, is also not easy stereo shaping, and single fiber is easy to weaving and is knitted with constituting
The flexibility of object, gained fabric is also fine, is also easy to carry out the processing in various forms, such as winding, suture, stereo shaping
Deng to meet the structure design and Compound Machining of function ceramics, to meet different application demands.Therefore, the present invention is not only
Cost of manufacture is lower, and application range is wider, and does not need auxiliary agent processing, is more energy-saving and environmentally friendly.
3, a kind of preparation method of skeleton coated electric heating function ceramics of the present invention in product and application method, is being applied
When actual production, only need on existing ceramic production line, increase the producing of base core crab, outer package ceramic forerunner the two
Step, so that it may this product is produced, it is suitable for scale production.Therefore, the present invention is conducive to promote and apply, being capable of large-scale production.
4, a kind of preparation method of skeleton coated electric heating function ceramics of the present invention in product and application method, is being applied
When, colloid or concatermer are either applied, domestic common various everyday power sources, including domestic power supply, battery are suitable for
Deng lower using difficulty, in addition, the external form of product can also specially be designed according to various demands, product type is abundant, adapts to
All kinds of civilian ceramics.Therefore, application range of the invention is wider.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of formed body in the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the cross-sectional view of Fig. 2.
Fig. 4 is another structural schematic diagram of formed body in the present invention.
Fig. 5 is the cross-sectional view of Fig. 4.
Fig. 6 is the energization schematic diagram that colloid is applied in the present invention.
Fig. 7 is the energization schematic diagram of concatermer in the present invention.
In figure: base core crab 1, applies colloid 5, conducting resinl 51, concatermer 6 at ceramic forerunner 2.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1-Fig. 7, a kind of preparation method of skeleton coated electric heating function ceramics, comprising the following steps:
The first step, base core crab are produced: first being weaved with single fiber to obtain fabric, then changed fabric on demand
For form to obtain base core crab 1, change technique includes any one or any combination in cutting, be laminated, suturing；The single fiber
It ties up as any one in polyacrylonitrile fibre, cellulose fibre, protein fibre, pitch fibers, resin fibre；
Second step, formed body are produced: being enclosed with ceramic forerunner 2 in the outside of above-mentioned base core crab 1 to be formed
Body, the formed body be not loose when standing；The making material of the ceramic forerunner 2 is the mixing of ceramic mud, ceramic powder or both
Object, the ceramics mud are the pureed mixture that ceramic powder and water mix；
Ceramic sinter molding: above-mentioned formed body is first sent into ceramic kiln, then to formed body oxygen barrier by third step
Under the conditions of be sintered, to obtain the electric heating function ceramics.
It is described to be weaved with single fiber to obtain fabric and refer to: first to produce linear yarn with single fiber, then with linear palpus
Item produces fabric；
It is described to produce linear yarn with single fiber and refer to: the processing of multifilament type, the processing of twisted filament type, in spinning type processing
Any one or any combination；
It is described to produce fabric with linear yarn and refer to: the processing of woven fabric type, the processing of knitted fabric type, non-woven cloth type
Any one in processing or any combination.
The single fiber, linear yarn or fabric are single fiber, linear yarn or the fabric after pre-oxidation, the pre-oxidation
Technique are as follows: single fiber, linear yarn or fabric are placed in aerobic environment and are heated, heating temperature is 200-350 DEG C, when heating
Between be 0.5-4 hour.
The constituent and its weight part ratio of the ceramic powder are as follows: silica 40-70, aluminum oxide 10-30 are remaining
Material 2-20, the clout are sodium oxide molybdena, potassium oxide, calcium oxide, any one or any combination in titanium dioxide.
The ceramic powder produce raw material be kaolin, receive feldspar, potassium feldspar, quartz, mica, spodumene, montmorillonite, she
Sharp stone, talcum, any one or any combination in cordierite.
The outside in above-mentioned base core crab 1 is enclosed with ceramic forerunner 2 to obtain formed body and refer to that wet process wraps up work
Skill or dry method packing technology；
The wet process packing technology refers to: first produce slurries with ceramic forerunner 2, then to base core crab 1 repeat to
The operation immerse in slurries, taken out from slurries, to obtain hanging body, number of repetition is at least twice, then to hanging soma
It is dry to obtain formed body；
The dry method packing technology refers to: first base core crab 1 being wrapped among ceramic forerunner 2, then is pressed into
Type, pressure are 20-100MPa, are then dried to obtain formed body.
The oxygen barrier condition are as follows: formed body is enclosed in inert gas or formed body is enclosed in charcoal powder, or at
Space around type body is evacuated.
The temperature of the sintering is 1000-1400 DEG C, and the time of sintering is 1-3h.
A kind of electric heating function ceramics, the preparation method according to above-mentioned skeleton coated electric heating function ceramics are made.
A kind of application method of electric heating function ceramics, comprising the following steps: first obtain above-mentioned electric heating function ceramics, then in electricity
Conducting resinl 51 is coated on the front/rear end of heat function ceramics to obtain applying colloid 5, is then powered, is realized to the both ends for applying colloid 5
Heating power, or first multiple painting colloids 5 are connected in series to obtain concatermer 6, then be powered to the both ends of concatermer 6, it is real
Existing heating power；The voltage of the energization is not higher than 220V.
The principle of the present invention is described as follows:
Ceramic powder in the present invention refers to existing known, all powder that ceramics can be made by being sintered.
Base core crab in the present invention refers to existing known, all can be carbonized to form the fabric of electric conductor at high temperature.
Inert gas in the present invention includes but is not limited to nitrogen, argon gas, hydrogen.
The advantages of single fiber after pre-oxidizing, linear yarn or fabric are used in the present invention is: can be promoted and finally be obtained
The intensity of the electric conductor obtained avoids it from being broken in sintering, influences subsequent heating power performance.
The present invention is optionally sprayed water, is dried, glazing or upper bottom powder before formed body is sent into ceramic kiln
In any one step or arbitrary steps combination, wherein when carrying out glazing, the composition of glaze includes quartz, feldspar, stone
Any one in ash, clay or any combination.
" single fiber, linear yarn or fabric are single fiber after pre-oxidation, linear yarn or knit in the present invention
Object " refers to any one or any combination in following situations: single fiber can pre-oxidize before becoming linear yarn；Line
Property yarn can pre-oxidize before becoming fabric；Fabric can pre-oxidize before becoming base core crab.
Embodiment 1:
Referring to Fig. 1-Fig. 3, a kind of preparation method of skeleton coated electric heating function ceramics, comprising the following steps: first with single
Fiber is weaved to obtain fabric, then is cut, is laminated to fabric, sutured to obtain the base core crab 1 of three stackings conjunction, so
Base core crab 1 is wrapped among ceramic forerunner 2 afterwards, then is pressed, pressure be 20-100MPa, then dry with
Formed body is obtained, then formed body is sent into ceramic kiln, then formed body is sintered under the conditions of oxygen barrier, to obtain
The electric heating function ceramics stated, sintering temperature are 1100 DEG C, sintering time 2h.
The single fiber is polyacrylonitrile fibre, in cellulose fibre, protein fibre, pitch fibers, resin fibre
Any one；The making material of the ceramic forerunner 2 is the mixture of ceramic mud, ceramic powder or both, and the ceramics mud is
The pureed mixture that ceramic powder and water mix, the constituent and its weight part ratio of the ceramic powder are as follows: silica 66,
Aluminum oxide 20, clout 5, the clout be sodium oxide molybdena, potassium oxide, calcium oxide, in titanium dioxide any one or it is any
Combination.
Embodiment 2:
Basic content with embodiment 1, the difference is that:
The single fiber is the single fiber after pre-oxidation, and the temperature of pre-oxidation is 200 DEG C, and the time of pre-oxidation is 4 small
When；The constituent and its weight part ratio of the ceramic powder are as follows: silica 40, aluminum oxide 30, clout 15；Sintering temperature
It is 1000 DEG C, sintering time 3h.
Embodiment 3:
Basic content with embodiment 1, the difference is that:
The fabric is the fabric after pre-oxidation, and the temperature of pre-oxidation is 350 DEG C, and the time of pre-oxidation is 4 hours；Institute
State the constituent and its weight part ratio of ceramic powder are as follows: silica 40, aluminum oxide 10, clout 20, sintering temperature are
1200 DEG C, sintering time 2.5h.
Embodiment 4:
Basic content with embodiment 1, the difference is that:
The constituent and its weight part ratio of the ceramic powder are as follows: silica 70, aluminum oxide 10, clout 2, sintering
Temperature is 1300 DEG C, sintering time 1.5h.
Embodiment 5:
Referring to fig. 4, Fig. 5, a kind of preparation method of skeleton coated electric heating function ceramics, comprising the following steps: first with single
Fiber is weaved to obtain fabric, then is cut, is laminated to fabric, wound, sutured to obtain the base core crab 1 of tubular,
The side wall of the base core crab 1 is three-layer textile form, then produces slurries with ceramic forerunner 2, then carry out to base core crab 1
The repetitive operation of " immerse into slurries, taken out from slurries ", it is in triplicate, then dry to hanging soma to obtain hanging body
To obtain formed body, then by formed body feeding ceramic kiln, then formed body is sintered under the conditions of oxygen barrier, to obtain
The electric heating function ceramics, sintering temperature are 1400 DEG C, sintering time 1h.
The single fiber is polyacrylonitrile fibre, in cellulose fibre, protein fibre, pitch fibers, resin fibre
Any one；The making material of the ceramic forerunner 2 is the mixture of ceramic mud, ceramic powder or both, and the ceramics mud is
The pureed mixture that ceramic powder and water mix, the constituent and its weight part ratio of the ceramic powder are as follows: silica 66,
Aluminum oxide 20, clout 5, the clout be sodium oxide molybdena, potassium oxide, calcium oxide, in titanium dioxide any one or it is any
Combination.
Embodiment 6:
Basic content with embodiment 1, the difference is that:
The constituent and its weight part ratio of the ceramic powder are as follows: silica 45, aluminum oxide 30, clout 16；It burns
Junction temperature is 1050 DEG C, sintering time 3h.
Embodiment 7:
Basic content with embodiment 1, the difference is that:
The fabric is the fabric after pre-oxidation, and the temperature of pre-oxidation is 350 DEG C, and the time of pre-oxidation is 4 hours；Institute
State the constituent and its weight part ratio of ceramic powder are as follows: silica 50, aluminum oxide 12, clout 19, sintering temperature are
1200 DEG C, sintering time 2.2h.
Embodiment 8:
Basic content with embodiment 1, the difference is that:
Yarn first is made with single fiber, then yarn is pre-oxidized, then makes fabric, pre-oxidation with the yarn after pre-oxidation
Temperature be 280 DEG C, time of pre-oxidation is 2 hours；The constituent and its weight part ratio of the ceramic powder are as follows: silica
65, aluminum oxide 12, clout 3, sintering temperature is 1350 DEG C, sintering time 1.6h.
The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment
Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power
In the protection scope recorded in sharp claim.
Claims (10)
1. a kind of preparation method of skeleton coated electric heating function ceramics, it is characterised in that the preparation method includes following step
It is rapid:
The first step, base core crab are produced: first being weaved with single fiber to obtain fabric, then changed the form of fabric on demand
To obtain base core crab (1), change technique includes any one or any combination in cutting, be laminated, suturing；The single fiber
For any one in polyacrylonitrile fibre, cellulose fibre, protein fibre, pitch fibers, resin fibre；
Second step, formed body are produced: being enclosed with ceramic forerunner (2) in the outside of above-mentioned base core crab (1) to be formed
Body, the formed body be not loose when standing；The making material of the ceramic forerunner (2) is the mixed of ceramic mud, ceramic powder or both
Object is closed, the ceramics mud is the pureed mixture that ceramic powder and water mix；
Ceramic sinter molding: above-mentioned formed body is first sent into ceramic kiln, then to formed body in oxygen barrier condition by third step
Under be sintered, to obtain the electric heating function ceramics.
2. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1, it is characterised in that: described
It is weaved with single fiber to obtain fabric and refer to: first producing linear yarn with single fiber, then produce fabric with linear yarn；
It is described to produce linear yarn with single fiber and refer to: the processing of multifilament type, the processing of twisted filament type, appointing in spinning type processing
It anticipates a kind of or any combination；
It is described to produce fabric with linear yarn and refer to: the processing of woven fabric type, the processing of knitted fabric type, the processing of non-woven cloth type
In any one or any combination.
3. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 2, it is characterised in that: described
Single fiber, linear yarn or fabric are single fiber, linear yarn or the fabric after pre-oxidation, the pre-oxidation process are as follows: will be single
Fiber, linear yarn or fabric are placed in aerobic environment and heat, and heating temperature is 200-350 DEG C, and heating time is 0.5-4 small
When.
4. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1,2 or 3, feature exist
In: the constituent and its weight part ratio of the ceramic powder are as follows: silica 40-70, aluminum oxide 10-30, clout 2-
20, the clout is sodium oxide molybdena, potassium oxide, calcium oxide, any one or any combination in titanium dioxide.
5. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1,2 or 3, feature exist
In: the ceramic powder produce raw material be kaolin, receive feldspar, potassium feldspar, quartz, mica, spodumene, montmorillonite, illite,
Any one in talcum, cordierite or any combination.
6. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1,2 or 3, feature exist
In: the outside in above-mentioned base core crab (1) is enclosed with ceramic forerunner (2) and refers to wet process packing technology to obtain formed body
Or dry method packing technology；
The wet process packing technology refers to: first produce slurries with ceramic forerunner (2), then to base core crab (1) repeat to
The operation immerse in slurries, taken out from slurries, to obtain hanging body, number of repetition is at least twice, then to hanging soma
It is dry to obtain formed body；
The dry method packing technology refers to: first base core crab (1) being wrapped among ceramic forerunner (2), then is pressed into
Type, pressure are 20-100MPa, are then dried to obtain formed body.
7. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1,2 or 3, feature exist
In: the oxygen barrier condition are as follows: formed body is enclosed in inert gas or formed body is enclosed in charcoal powder or formed body
The space of surrounding is evacuated.
8. a kind of preparation method of skeleton coated electric heating function ceramics according to claim 1,2 or 3, feature exist
In: the temperature of the sintering is 1000-1400 DEG C, and the time of sintering is 1-3h.
9. a kind of electric heating function ceramics, it is characterised in that: the electric heating function ceramics are according to bone described in claim 1,2 or 3
The preparation method of frame coated electric heating function ceramics is made.
10. a kind of application method of electric heating function ceramics, it is characterised in that the application method is the following steps are included: first obtain power
Benefit require 9 described in electric heating function ceramics, then coat conducting resinl (51) on the front/rear end of electric heating function ceramics to be applied
Colloid (5) is then powered to the both ends for applying colloid (5), realizes heating power, or first carry out series connection company to multiple painting colloids (5)
It connects to obtain concatermer (6), then is powered to the both ends of concatermer (6), realize heating power；The voltage of the energization is not higher than
220V。
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Application publication date: 20191119 |