CN105517212B - A kind of embedded heating panel and preparation method thereof - Google Patents
A kind of embedded heating panel and preparation method thereof Download PDFInfo
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- CN105517212B CN105517212B CN201610005264.5A CN201610005264A CN105517212B CN 105517212 B CN105517212 B CN 105517212B CN 201610005264 A CN201610005264 A CN 201610005264A CN 105517212 B CN105517212 B CN 105517212B
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- H—ELECTRICITY
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
- H05B3/283—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an inorganic material, e.g. ceramic
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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
- C04B35/16—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 silicates other than clay
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Resistance Heating (AREA)
Abstract
The present invention provides a kind of embedded heating panel and preparation method thereof, which includes matrix and heating wire；Wherein, matrix includes the following component prepared according to mass fraction：10 14 parts of clay, 15 parts of feldspar, 13 17 parts of cordierite, 30 40 parts of mullite, 30 40 parts of perlite.The preparation method of the heating plate is：Basis material is mixed according to set parts by weight, is stirred, obtains mixture；Mixture is compressing, obtain base substrate；While compacting, heating wire is embedded to base substrate；The base substrate demoulding of heating wire, sintering, spray-on coating, drying, sintering will be embedded with, that is, obtains embedded heating panel.The heating plate has the advantages that high thermal shock stability, high intensity, high-insulativity, high radiation, heat transfer is good, energy saving, service life is long, and that its preparation method has the advantages that is convenient, simple, is easy to grasp, can mass produce and extensive use.
Description
Technical field
The present invention relates to field of inorganic nonmetallic material, in particular to a kind of embedded heating panel and its preparation side
Method.
Background technology
Heating plate is to convert electric energy into thermal energy to heat object.It is a kind of form of utilization of power.Add with general fuel
Heat is compared, and electrical heating can obtain higher temperature (such as electric arc heated, temperature is up to more than 3000 DEG C), it is easy to accomplish temperature it is automatic
Control and far distance controlled.Electrical heating can inside heating object direct heat, thus the thermal efficiency is high, and programming rate is fast, and
Can be according to the technological requirement of heating, realization entirety is evenly heated or local heating (including surface heating), and vacuum easy to implement adds
Heat and control atmosphere heating.During electrical heating, the exhaust gas of generation, residue and flue dust are few, can keep heating object
Cleaning, it is free from environmental pollution.According to the difference of electric energy conversion regime, electrical heating is generally divided into resistance heating, sensing heating, electric arc and adds
Heat, electron beam heating, infrared heating and medium heating etc..
Wherein, resistance heating is to convert electric energy into thermal energy using the Joule effect of electric current to heat object.It is generally divided into
Direct resistance heating and indirect resistance heating.The former supply voltage is applied directly on heating object, when a current flows through,
Heating object electrical heating itself.Can the object of directly resistance heating must be conductor, but to have higher resistivity.Due to heat
Volume production is born in heating object in itself, belongs to internal heating, and the thermal efficiency is very high.Indirect resistance heating need to be by special alloy material
Or heater element is made in nonmetallic materials, thermal energy is produced by heater element, is passed to and is added by modes such as radiation, convection current and conduction
On hot object.Since heating object and heater element are divided into two parts, the species of heating object is generally unrestricted,
It is easy to operate.The heater element material therefor of indirect resistance heating, generally requires that resistivity is big, temperature-coefficient of electrical resistance is small, in height
The lower deformation of temperature is small and is not easy embrittlement.
Existing heating plate, it is general to select portland cement or aluminate cement to be formed for matrix cast, but its shaping is slow, week
Phase is grown, thermal shock resistance, and heat transfer and poor insulativity, intensity is low, and energy consumption is big, and service life is also shorter.
In view of this, it is special to propose the present invention.
The content of the invention
The first object of the present invention is to provide a kind of embedded heating panel, to solve portland cement or aluminate cement
Slow for the heating sheet metal forming of matrix, cycle length, thermal shock resistance, heat transfer and poor insulativity, intensity is low, and energy consumption is big, service life
Also the problem of shorter.The embedded heating panel, there is high thermal shock stability, high intensity, high-insulativity, high radiation, heat to pass
Lead the advantages that good, energy saving, service life is long.
The second object of the present invention is to provide a kind of preparation method of the embedded heating panel, this method use pressure
The preparation process of potting porcelain, have the advantages that it is convenient, simple, be easy to grasp, be adapted to large-scale production and extensive use.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of embedded heating panel, including matrix and heating wire；
Wherein, described matrix, including the following component prepared according to mass fraction：10-14 parts of clay, 1-5 parts of feldspar, violet
13-17 parts of green stone, 30-40 parts of mullite, 30-40 parts of perlite.
Cordierite chemical composition is 2MgO2A12O3·5SiO2, be a kind of silicate mineral, in nature distribution compared with
Extensively, it has the advantages that relatively low thermal coefficient of expansion and good heat endurance, good thermal shock, but cordierite toughness it is relatively low,
Load softening point is low and synthesis temperature narrow range (only 25 DEG C).
Mullite is A12O3-SiO2The crystalline phase uniquely stablized from room temperature to high temperature at normal atmospheric pressure in system, mullite
For orthorhombic system, the structure of sial oxygen is the double-strand connected into by [SiO4] tetrahedron in crystal, and one rule double-strand of connection is
The aluminium ion of hexa-coordinate.Since the structure of mullite is double catenations, therefore its crystal is generally in needle-shaped, column structure,
Intensive acicular mullite crystallization net staggeredly can be formed in some High-Aluminas, particularly electrofused mullite.Mullite material fire resisting
Spend height, good thermal shock stability, the creep resistance of thermal coefficient of expansion low and high temperature is good, has very high wearability and chipping resistance, resistant to corrosion
Property etc., mullite high-temperature behavior is excellent and high mechanical strength, by cordierite and mullite it is compound be to improve its high-temperature behavior.Cordierite
Thermal coefficient of expansion it is small (at 25~1000 DEG C be about 1 × 10-6~2 × 10-6℃-1), thermal shock resistance and chemical stability are good, but
Its refractoriness is relatively low, and can decompose at 1470 DEG C, and the refractoriness of mullite is high, thermal coefficient of expansion big (4.5 × 10-6
℃-1).Therefore, cordierite differs larger with the coefficient of expansion of mullite, and micro-crack is produced in the two composite material being used cooperatively
It is and favourable to the thermal shock resistance of material.
Clay containing the grains of sand seldom, have the soil of stickiness, clay has plasticity, the shaping of base substrate be by means of clay can
Plasticity, injection mud then relies obtains good suspension and stability in the finely divided property of clay, therefore one must be used in dispensing
Some non-eductive raw materials are produced binding ability, base substrate is avoided deformation and cracking in the drying process by quantitative clay
Defect, and strengthen the intensity of heating plate.Also, when being heated to more than 1000 degree, due to clay mineral after dehydration --- kaolinite
Stone decomposes, and has Mullite-Crystallization generation, and assigns the intensity of base substrate.The main component of clay is A12O3, heating can be improved
The heat resistance of plate.
Feldspar be it is a kind of containing calcium, sodium, potassium aluminium silicate mineral, it has many kinds, as albite, anorthite, barium length
Stone, baryta feldspar, microcline, orthoclase, glassy feldspar etc..Feldspar is non-plastic raw material, and body drying can be speeded simultaneously in base substrate
And reduce dry caused contraction and deformation.Feldspar be heated to more than 1100 DEG C melting after generate glass state material have melt its
The ability of its material, can promote the particle of kaolin and other china clay, diffuse into one another, interpenetrate, thus accelerate base substrate not come
The generation and development of stone crystal.After feldspar is melt into glassy state, it is filled between each crystalline particle, the porosity is remarkably decreased, and is subtracted
Gap is lacked, has made base substrate fine and close, the mechanical strength and electric property of heating plate can be improved.
Perlite is a kind of acidic lava of volcanic eruption, the glassy rock formed through quick refrigeration.Perlite adds
The adhesive property of mixture can be improved by entering, and greatly improved its plasticity, be conducive to blank forming.Dry under low temperature, can just promote
Make blank Densification, be conducive to improve base substrate compactness, so as to improve its intensity and service life.
Preferably, described matrix, in terms of mass fraction, specifically includes following component：11-13 parts of clay, 2-4 parts of feldspar,
14-16 parts of cordierite, 34-36 parts of mullite, 34-36 parts of perlite.
Preferably, the heating wire is nichrome wire.
Alloy nickel filament, which can be made, in the element such as nickel chromium triangle and iron, aluminium, silicon, carbon, sulphur has higher resistivity and heat resistance.
Nickel chromium elevated temperature strength is high, and plasticity is strong.
A kind of preparation method of embedded heating panel, includes the following steps：
Basis material is mixed according to set parts by weight, is stirred, obtains mixture；Mixture is compressing,
Obtain base substrate；While compacting, heating wire is embedded to base substrate；To be embedded with the base substrate demoulding of heating wire, sintering, spray-on coating,
Drying, sintering, that is, obtain embedded heating panel.
Raw material is stirred evenly, it is then compressing with the preparation process of press ceramic, it is embedded to electric heating while compacting
Silk.Sintered after the demoulding, sintering meeting powder or un-densified material are heated in a certain range less than its fusing point, and particle occurs and glues
Knot, structural compactness increase, intensity and chemical stability are improved, and become solid aggregate.
Preferably, the rotating speed of the stirring is 250-300 revs/min.
The speed of stirring is generally selected in 250-300 revs/min, before compaction stirs evenly raw material, material point after sintering
Cloth is uniform, avoids crystallization skewness and causes heating plate intensity to decline.
Preferably, the pressure of the compacting is 300-500 tons.
General to take 300-500 tons, briquetting pressure, which improves, can reduce the contraction of burning till of product, and water absorption rate reduces.But it is molded
Pressure is excessive to be not only unprofitable to improve blank density and intensity, but also causes residual compressive air in base substrate, is expanded after unloading
Cause over-pressed slabbing, energy consumption also increases.
Preferably, the temperature of the sintering is 1060-1100 DEG C.
Temperature sinters between 1060-1100 DEG C, clay mineral after dehydration --- and kaolinite decomposes, and has Mullite-Crystallization
Generation, and assign the intensity of base substrate.And generation glass state material is other with melting after feldspar is heated to more than 1100 DEG C meltings
The ability of material, can promote the particle of kaolin and other china clay, diffuse into one another, interpenetrate, and can improve the strong of heating plate
Degree.
Preferably, the spray-on coating is one kind in glaze layer or high-temperaure coating.
Glaze is in heating process, it may occur that the physicochemical change of a series of complex, is such as dehydrated, organic matter, carbonate, sulphur
The decomposition such as hydrochlorate, phosphate and solid phase reaction, mutually raw material fuse itself, melting are formed between eutectic and base glaze and added
Reaction in thermal process etc..Mechanical strength, electrical insulating property, chemical temperatures, soil resistance and the radiation that heating plate can be improved dissipate
Thermal energy power.
High-temperaure coating generally refers to that 200 DEG C of temperatures above can be born for a long time, and keeps its physical and chemical performance, makes to be protected
The type coating that shield object can work normally in hot environment.It can be Organosilicon Polymers coating, wherein connect on Si atoms
For the alkyl connect after by thermal oxide, what can be generated is highly cross-linked more stable Si-O-Si keys, can improve heating plate long-term
Service life under high temperature.
Preferably, the temperature of the drying is 100-120 DEG C.
Preferably, when the time of the drying is 2-5 small.
The temperature of drying is unsuitable excessive, to prevent in the drying process as the discharge of moisture, base substrate can be received constantly
Contract and deform, usually in shape to pervious state torsion is molded for the last time, this can influence the moulding of base substrate and size
Accuracy, or even make blank cracking.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person, the condition suggested according to normal condition or manufacturer carry out.Reagents or instruments used without specified manufacturer, is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
Embedded heating panel provided by the invention, including matrix and heating wire；
Wherein, matrix includes the following component prepared according to mass fraction：10 parts of clay, 1 part of feldspar, 13 parts of cordierite,
30 parts of mullite, 30 parts of perlite.
The preparation method of the embedded heating panel includes the following steps：
Basis material is mixed according to set parts by weight, is stirred, obtains mixture；Mixture is compressing,
Obtain base substrate；While compacting, heating wire is embedded to base substrate；To be embedded with the base substrate demoulding of heating wire, sintering, spray-on coating,
Drying, that is, obtain embedded heating panel.
Embodiment 2
Embedded heating panel provided by the invention, including matrix and nichrome wire；
Wherein, matrix includes the following component prepared according to mass fraction：14 parts of clay, 5 parts of feldspar, 17 parts of cordierite,
40 parts of mullite, 40 parts of perlite.
The preparation method of the embedded heating panel includes the following steps：
Basis material is mixed according to set parts by weight, is stirred with 250 revs/min of speed, obtains mixture；
By mixture under 300 tons of pressure it is compressing, obtain base substrate；While compacting, heating wire is embedded to base substrate；It will be embedded with
The base substrate demoulding of heating wire, sinters at 1060 DEG C, sprays glaze layer, and with 120 DEG C of drying 2 it is small when, that is, obtain embedded heating panel.
Embodiment 3
Embedded heating panel provided by the invention, including matrix and nichrome wire；
Wherein, matrix includes the following component prepared according to mass fraction：12 parts of clay, 3 parts of feldspar, 15 parts of cordierite,
35 parts of mullite, 35 parts of perlite.
The preparation method of the embedded heating panel includes the following steps：
Basis material is mixed according to set parts by weight, is stirred with 300 revs/min of speed, obtains mixture；
By mixture under 500 tons of pressure it is compressing, obtain base substrate；While compacting, nichrome wire is embedded to base substrate；Will
The base substrate demoulding of heating wire is embedded with, is sintered at 1100 DEG C, sprays ZS-1061 high-temperature-resistant far infrared radiation coatings, and with 100 DEG C of bakings
It is dry 5 it is small when, that is, obtain embedded heating panel.
Embodiment 4
Embedded heating panel provided by the invention, including matrix and nichrome wire；
Wherein, matrix includes the following component prepared according to mass fraction：12 parts of clay, 3 parts of feldspar, 15 parts of cordierite,
30 parts of mullite, 30 parts of perlite.
Its preparation method is same as Example 3.
Embodiment 5
Embedded heating panel provided by the invention, including matrix and nichrome wire；
Wherein, matrix includes the following component prepared according to mass fraction：10 parts of clay, 1 part of feldspar, 13 parts of cordierite,
35 parts of mullite, 35 parts of perlite.
Its preparation method is same as Example 3.
1 bending resistance test of experimental example
Bending resistance test is carried out to the embedded heating panel provided in embodiment 1-3, and is with portland cement
The embedded heating panel of matrix is contrasted.
Test method：Bending strength national standard (GB/T 6569-86), bending strength test is omnipotent in Instron1195 made in Great Britain
Carried out in Material Testing Machine.Strip as test is 3 × 4 × 35 (mm*mm*mm).Measured using three-point bending method, span is
30mm, loading speed 0.5mm/min.5 strips of each data test, are then averaged.It should be noted that when surface processes
Grinding direction should be consistent with specimen length direction.Corase grinding and fine grinding twice technique are taken sample, and corase grinding depth is no more than every time
0.03mm, fine grinding use the skive of 320~800 mesh, and the depth polished every time is not more than 0.002mm.
Experimental result is as shown in table 1.
1 bending strength test result of table
It is demonstrated experimentally that the bending strength of embedded heating panel provided by the invention is above portland cement adding for matrix
Hot plate, wherein, the embedded heating panel mechanical strength highest that embodiment 3 is provided.Prove flush type heating provided by the invention
Plate has very high mechanical strength.
2 thermal shock resistance of experimental example is tested
Thermal shock resistance test is carried out to the embedded heating panel provided in embodiment 1-3, and is with portland cement
The embedded heating panel of matrix is contrasted.
Test method：Each test heater plate is heated to peak power, is kept for 30 minutes, is then powered off, put into 20 rapidly
DEG C cold water in, 50 times repeatedly, observe whether its surface cracks, and test its residual mechanical intensity, the same experimental example of test method
1。
Test result is as shown in table 2.
2 thermal shock resistance test result of table
It is demonstrated experimentally that heating plate provided by the invention, thermal shock resistance is good, is adapted to that heating plate is cold and hot to work repeatedly
Working environment, be conducive to improve heating plate service life.
3 insulating properties of experimental example is tested
Using the resistance of the embedded heating panel provided in Wheatstone bridge method testing example 1-3, and and silicate
Cement is contrasted for the embedded heating panel of matrix.Test result is as shown in table 3.
3 insulating properties test result of table
It is demonstrated experimentally that embedded heating panel resistance provided by the invention is big, good insulating, it is ensured that is produced during use
The security of product.
4 heat radiation of experimental example is tested
Infrared emittance test is carried out to the embedded heating panel provided in embodiment 1-3, and is with portland cement
The embedded heating panel of matrix is contrasted.Test result is as shown in table 4.
4 insulating properties test result of table
| Sequence number | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Portland cement |
| Infrared emittance | 0.73 | 0.80 | 0.83 | 0.73 | 0.76 | 0.66 |
It is demonstrated experimentally that embedded heating panel infrared emittance provided by the invention is high, be conducive to the thing of heating needed for heating
Body, and found in experimentation, the heating plate cooling velocity is slow, therefore energy-saving effect is obvious.Same heating 10ml, 25 DEG C of water
15%-25% is shortened than portland cement heating plate the time required to evaporating completely, the heating plate, illustrates that it is not only radiated
Rate is high, also has the advantages that heat-conductive characteristic is good, with effectively save electric energy the thermal energy that electric energy converts can be enable effectively to pass through spoke
Penetrate and conduct, add object.
In conclusion embedded heating panel provided by the invention, has high thermal shock stability, and 50 anti-thermal shock experiments
Afterwards, residual mechanical high intensity；The heating plate insulating properties is high, safe to use；Infrared emittance is high, heat transfer is good, therefore can be with
Effectively save electric energy.Also, the heating plate has good mechanical performance and thermal shock resistance, can effectively extend the heating plate
Usage time.Extend its service life.The preparation method of embedded heating panel provided by the invention, this method are made pottery using compacting
The preparation process of porcelain, have the advantages that it is convenient, simple, be easy to grasp, be adapted to large-scale production, and metal can be widely used in
Coatings industry, woodwork coating industry, plastics coating industry, electroplating industry, electric wire industry, food industry, packaging industry, dye
The heating of whole fiber industry, electronics industry, glass industry, household appliances class etc..
Although being illustrated and the invention has been described with specific embodiment, but will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (1)
1. a kind of embedded heating panel, it is characterised in that including matrix and nichrome wire；
Wherein, matrix includes the following component prepared according to mass fraction：12 parts of clay, 3 parts of feldspar, 15 parts of cordierite, Mo Lai
35 parts of stone, 35 parts of perlite；
The preparation method of the embedded heating panel includes the following steps：
Basis material is mixed according to set parts by weight, is stirred with 300 revs/min of speed, obtains mixture；Will be mixed
It is compressing under 500 tons of pressure to close material, obtains base substrate；While compacting, nichrome wire is embedded to base substrate；It will be embedded with
The base substrate of heating wire demoulds, and is sintered at 1100 DEG C, sprays ZS-1061 high-temperature-resistant far infrared radiation coatings, and with 100 DEG C of drying 5
Hour, that is, obtain embedded heating panel.
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| CN201610005264.5A CN105517212B (en) | 2016-01-05 | 2016-01-05 | A kind of embedded heating panel and preparation method thereof |
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| CN201610005264.5A CN105517212B (en) | 2016-01-05 | 2016-01-05 | A kind of embedded heating panel and preparation method thereof |
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| CN105517212B true CN105517212B (en) | 2018-04-13 |
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| CN106187249B (en) * | 2016-06-27 | 2019-01-22 | 江苏天宝陶瓷股份有限公司 | A kind of electric ceramic and its preparation process of high thermal stability |
| CN106175417B (en) * | 2016-09-28 | 2018-07-20 | 佛山市顺德区纳邦电器有限公司 | The manufacturing method of the heating board of energy saving pot |
| CN106175470A (en) * | 2016-09-28 | 2016-12-07 | 合肥海宝节能科技有限公司 | The heating board of energy saving pot |
| CN107396474B (en) * | 2017-06-13 | 2020-07-21 | 泾县信达工贸有限公司 | Processing method of heating disc of energy-saving high-temperature-resistant electric cooker |
| CN108793959A (en) * | 2018-07-31 | 2018-11-13 | 冯嘉豪 | A kind of low-k ceramic material and preparation method thereof |
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| CN1592502A (en) * | 2000-02-25 | 2005-03-09 | Ibiden股份有限公司 | Ceramic substrate and process for producing the same |
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| CN1370136A (en) * | 1999-06-07 | 2002-09-18 | 联合矿物产品公司 | Lightweight dry refractory |
| CN1592502A (en) * | 2000-02-25 | 2005-03-09 | Ibiden股份有限公司 | Ceramic substrate and process for producing the same |
| CN1596557A (en) * | 2001-11-30 | 2005-03-16 | 揖斐电株式会社 | Ceramic heater |
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
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