CN105517212A - Embedded heating plate and preparation method thereof - Google Patents
Embedded heating plate and preparation method thereof Download PDFInfo
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- CN105517212A CN105517212A CN201610005264.5A CN201610005264A CN105517212A CN 105517212 A CN105517212 A CN 105517212A CN 201610005264 A CN201610005264 A CN 201610005264A CN 105517212 A CN105517212 A CN 105517212A
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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
-
- 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
-
- 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
-
- 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
Abstract
The invention provides an embedded heating plate and a preparation method thereof. The heating plate comprises a matrix and a heating wire, wherein the matrix is composed of components prepared according to mass portions: 10-14 portions of clay, 1-5 portions of feldspar, 13-17 portions of cordierite, 30-40 portions of mullite, and 30-40 portions of perlite. The preparation method comprises: mixing and stirring matrix materials according to set parts by weight to obtain a mixture; compression moulding the mixture to obtain a green body; embedding the heating wire in the green body at the same time of compression; and demoulding, sintering, spraying, drying and sintering the green body embedded with the heating wire to obtain the embedded heating plate. The embedded heating plate possesses the advantages of great thermal shock resistance performance, high strength, high insulation, high radiation, sound heat conduction, energy conservation, long service life, etc.; the preparation method is convenient and simple, is easy to grasp, and can be used in large scale production and be widely applied.
Description
Technical field
The present invention relates to field of inorganic nonmetallic material, in particular to a kind of embedded heating panel and preparation method thereof.
Background technology
Heating plate becomes heat energy with heating object converting electric energy.It is a kind of form of utilization of power.Compared with heating with general fuel, electric heating can obtain higher temperature (as arc heating, temperature can reach more than 3000 DEG C), is easy to the automatic control and the far distance controlled that realize temperature.Electric heating can in the inner directly heat-dissipating of heating object, thus the heat efficiency is high, and programming rate is fast, and can according to the technological requirement of heating, realize overall homogeneous heating or localized heating (comprising surface heating), easily realize heating in vacuum and controlled atmospher heating.In electric heating process, the waste gas of generation, residue and flue dust are few, can keep the cleaning of heating object, free from environmental pollution.According to the difference of electric energy conversion regime, electric heating is divided into the heating of resistance heating, induction heating, arc heating, electron beam, infrared heating and dielectric heating etc. usually.
Wherein, resistance heating utilizes the Joule effect of electric current to become heat energy with heating object converting electric energy.Usually direct resistance heating and indirect resistance heating is divided into.The former supply voltage is directly added on heating object, when a current flows through, and the electric heating of heating object own.Can the object of direct resistance heating must be conductor, but higher resistivity will be had.Because heat results from heating object itself, belong to inner heating, the heat efficiency is very high.Indirect resistance heating need make heater element by special alloy material or nonmetallic materials, produces heat energy, passed on heating object by modes such as radiation, convection current and conduction by heater element.Because heating object and heater element are divided into two parts, therefore the kind of heating object is generally unrestricted, easy and simple to handle.The heater element material therefor of indirect resistance heating, General Requirements resistivity is large, temperature coefficient of resistance is little, is at high temperature out of shape little and not easily brittle.
Existing heating plate, generally select portland cement or aluminate cement to be that matrix cast forms, but it is slowly shaping, the cycle is long, thermal shock resistance, heat transfer and poor insulativity, and intensity is low, and power consumption is large, and useful life is also shorter.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of embedded heating panel, and slowly shaping to solve the heating plate that portland cement or aluminate cement are matrix, the cycle is long, thermal shock resistance, heat transfer and poor insulativity, intensity is low, and power consumption is large, the problem that useful life is also shorter.Described embedded heating panel, has the advantages such as high thermal shock stability, high strength, high-insulativity, high radiation, heat transfer are good, energy-conservation, long service life.
The second object of the present invention is the preparation method providing a kind of described embedded heating panel, and the method adopts the preparation technology of press ceramic, has conveniently, simply, is easy to the advantages such as grasp, be applicable to large-scale production and extensive use.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
A kind of embedded heating panel, comprises matrix and heating wire;
Wherein, described matrix, comprises the following component according to mass fraction preparation: clay 10-14 part, feldspar 1-5 part, cordierite 13-17 part, mullite 30-40 part, perlite 30-40 part.
Cordierite chemical composition is 2MgO2A1
2o
35SiO
2, be a kind of silicate mineral, distributed more widely at occurring in nature, it has lower thermal coefficient of expansion and good thermal stability, the advantages such as good thermal shock, but cordierite toughness is lower, load softening point is low and synthesis temperature narrow range (only 25 DEG C).
Mullite is A1
2o
3-SiO
2crystalline phase uniquely stable from room temperature to high temperature at normal atmospheric pressure in system, mullite is orthorhombic system, and in crystal, the structure of sial oxygen is the double-strand connected into by [SiO4] tetrahedron, and what connect a rule double-strand is the aluminium ion of hexa-coordinate.Structure due to mullite is two catenations, therefore its crystal is generally in needle-like, column structure, can form intensive staggered acicular mullite crystallization net in some High-Aluminas, particularly electrofused mullite.Mullite material refractoriness is high, good thermal shock stability, the creep resistance of thermal coefficient of expansion low and high temperature are good, have very high resistance to wear and chipping resistance, erosion resisting etc., mullite high-temperature behavior is excellent and mechanical strength is high, is improve its high-temperature behavior by cordierite and mullite compound.The thermal coefficient of expansion of cordierite is little (is about 1 × 10 at 25 ~ 1000 DEG C
-6~ 2 × 10
-6dEG C
-1), thermal shock resistance and chemical stability good, but its refractoriness is lower, and can decompose at 1470 DEG C, and the refractoriness of mullite is high, thermal coefficient of expansion large (4.5 × 10
-6dEG C
-1).Therefore, cordierite differs comparatively large with the coefficient of expansion of mullite, the two with the use of composite material in produce micro-crack and favourable to the thermal shock resistance of material.
Clay contains the soil that the grains of sand are little, have stickiness, clay has plasticity, base substrate shaping is the plasticity by means of clay, injection mud then relies the finely divided property in clay and obtains good suspension and stability, therefore a certain amount of clay must be used in batching, binding ability is produced to some non-plastic materials, makes base substrate in dry run, avoid being out of shape the defect with cracking, and strengthen the intensity of heating plate.Further, when being heated to more than 1000 degree, after dewatering, clay mineral---kaolinite decomposes, and has Mullite-Crystallization to generate, and gives the intensity of base substrate.The main component of clay is A1
2o
3, the heat resistance of heating plate can be improved.
Feldspar is a kind of aluminium silicate mineral containing calcium, sodium, potassium, and it has a variety of, as albite, anorthite, baryta fledspar, baryta feldspar, microcline, orthoclase, glassy feldspar etc.Feldspar is non-plastic raw material, can speed body drying and reduce the dry contraction that causes and distortion in base substrate.Feldspar generates glass state material and has the ability melting other material after being heated to more than 1100 DEG C meltings, can impel the particle of kaolin and other china clay, spread mutually, interpenetrate, and thus accelerates generation and the growth of base substrate mullite crystal.After feldspar is melt into glassy state, be filled between each crystalline particle, the porosity significantly declines, and decreases space, makes base substrate fine and close, can improve mechanical strength and the electric property of heating plate.
Perlite is a kind of acidic lava of volcanic eruption, through the glassy rock of quick refrigeration.Perliticly add the adhesive property that can improve compound, greatly improve its plasticity, be conducive to blank forming.Dry under low temperature, just can impel blank Densification, be conducive to improving base substrate compactness, thus improve its intensity and useful life.
Preferably, described matrix, in mass fraction, specifically comprises following component: clay 11-13 part, feldspar 2-4 part, cordierite 14-16 part, mullite 34-36 part, perlite 34-36 part.
Preferably, described heating wire is nichrome wire.
The elements such as nickel chromium triangle and iron, aluminium, silicon, carbon, sulphur can be made alloy nickel filament and have higher resistivity and thermal endurance.Nickel chromium elevated temperature strength is high, and plasticity is strong.
A preparation method for embedded heating panel, comprises the steps:
Basis material is carried out mixing, stirring according to set parts by weight, obtains compound; Compound is compressing, obtain base substrate; While compacting, heating wire is imbedded base substrate; To be embedded with the base substrate demoulding of heating wire, sintering, spray-on coating, oven dry, sintering, namely obtains embedded heating panel.
Raw material is stirred, then uses the preparation technology of press ceramic compressing, while compacting, imbed heating wire.Sinter after the demoulding, through being heated in the certain limit lower than its fusing point, there is particle bond in sintering meeting powder or non-fine and close material, structural compactness increases, and intensity and chemical stability are improved, and become solid aggregate.
Preferably, the rotating speed of described stirring is 250-300 rev/min.
The speed stirred generally is selected in 250-300 rev/min, is stirred by raw material before compaction, and after sintering, species distribution is even, avoids crystallization skewness and causes heating plate intensity to decline.
Preferably, the pressure of described compacting is 300-500 ton.
Generally get 300-500 ton, briquetting pressure raising can make burning till of goods shrink reduction, and water absorption rate reduces.But excessive being not only unprofitable to of briquetting pressure improves blank density and intensity, and causes residual compressive air in base substrate, and expanding after unloading causes overvoltage slabbing, and energy consumption also strengthens.
Preferably, the temperature of described sintering is 1060-1100 DEG C.
Temperature sinters between 1060-1100 DEG C, and clay mineral after dehydration---kaolinite decomposes, and has Mullite-Crystallization to generate, and gives the intensity of base substrate.And feldspar generates the ability that glass state material has other material of melting after being heated to more than 1100 DEG C meltings, the particle of kaolin and other china clay can be impelled, spread mutually, interpenetrate, the intensity of heating plate can be improved.
Preferably, described spray-on coating is the one in glaze layer or high-temperaure coating.
Glaze is in heating process, the physicochemical change of series of complex can be there is, as dehydration, decomposition and the solid phase reactions such as organic substance, carbonate, sulfate, phosphate, raw material fuse itself, mutually melting form the reaction etc. between eutectic and base glaze in heating process.The mechanical strength of heating plate, electrical insulating property, chemical temperatures, soil resistance and heat loss through radiation ability can be improved.
High-temperaure coating generally refers to and can bear more than 200 DEG C temperature for a long time, and keeps its physical and chemical performance, makes the type coating that protected object can normally work in hot environment.Can be Organosilicon Polymers coating, the alkyl wherein Si atom connected be by after thermal oxidation, and what can generate is highly cross-linked more stable Si-O-Si key, can improve the useful life of heating plate under long term high temperature.
Preferably, the temperature of described oven dry is 100-120 DEG C.
Preferably, the time of described oven dry is 2-5 hour.
The temperature of drying is unsuitable too high, to prevent the discharge along with moisture in dry run, base substrate can constantly shrink and be out of shape, be generally in shape to last shaping before state reverse, this can affect moulding and the accuracy of gauge of base substrate, even makes blank cracking.
Embodiment
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturer suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1
Embedded heating panel provided by the invention, comprises matrix and heating wire;
Wherein, matrix comprises the following component according to mass fraction preparation: clay 10 parts, feldspar 1 part, cordierite 13 parts, mullite 30 parts, perlite 30 parts.
The preparation method of this embedded heating panel comprises the steps:
Basis material is carried out mixing, stirring according to set parts by weight, obtains compound; Compound is compressing, obtain base substrate; While compacting, heating wire is imbedded base substrate; By being embedded with the base substrate demoulding of heating wire, sintering, spray-on coating, oven dry, namely obtain embedded heating panel.
Embodiment 2
Embedded heating panel provided by the invention, comprises matrix and nichrome wire;
Wherein, matrix comprises the following component according to mass fraction preparation: clay 14 parts, feldspar 5 parts, cordierite 17 parts, mullite 40 parts, perlite 40 parts.
The preparation method of this embedded heating panel comprises the steps:
Basis material is mixed according to set parts by weight, stirs with the speed of 250 revs/min, obtain compound; Compound is made type at the pressure of 300 tons, obtains base substrate; While compacting, heating wire is imbedded base substrate; To the base substrate demoulding of heating wire be embedded with, sinter at 1060 DEG C, spray vitreous coating, and dry 2 hours with 120 DEG C, namely obtain embedded heating panel.
Embodiment 3
Embedded heating panel provided by the invention, comprises matrix and nichrome wire;
Wherein, matrix comprises the following component according to mass fraction preparation: clay 12 parts, feldspar 3 parts, cordierite 15 parts, mullite 35 parts, perlite 35 parts.
The preparation method of this embedded heating panel comprises the steps:
Basis material is mixed according to set parts by weight, stirs with the speed of 300 revs/min, obtain compound; Compound is made type at the pressure of 500 tons, obtains base substrate; While compacting, nichrome wire is imbedded base substrate; To the base substrate demoulding of heating wire be embedded with, sinter at 1100 DEG C, spraying ZS-1061 high-temperature-resistant far infrared radiation coating, and dry 5 hours with 100 DEG C, namely obtain embedded heating panel.
Embodiment 4
Embedded heating panel provided by the invention, comprises matrix and nichrome wire;
Wherein, matrix comprises the following component according to mass fraction preparation: clay 12 parts, feldspar 3 parts, cordierite 15 parts, mullite 30 parts, perlite 30 parts.
Its preparation method is identical with embodiment 3.
Embodiment 5
Embedded heating panel provided by the invention, comprises matrix and nichrome wire;
Wherein, matrix comprises the following component according to mass fraction preparation: clay 10 parts, feldspar 1 part, cordierite 13 parts, mullite 35 parts, perlite 35 parts.
Its preparation method is identical with embodiment 3.
Experimental example 1 bending resistance test
Bending resistance test is carried out to the embedded heating panel provided in embodiment 1-3, and contrasts with the embedded heating panel that portland cement is matrix.
Method of testing: bending strength GB (GB/T6569-86), bending strength test carries out on Instron1195 universal testing machine made in Great Britain.The examination bar being used as test is 3 × 4 × 35 (mm*mm*mm).Employing three-point bending method is measured, and span is 30mm, and loading speed is 0.5mm/min.Each data test 5 examination bar, then averages.Should notice that when Surface Machining grinding direction should be consistent with specimen length direction.Take corase grind and fine grinding twice technique to sample, the corase grind degree of depth is no more than 0.03mm at every turn, and fine grinding adopts 320 ~ 800 object skives, and the degree of depth of each polishing is not more than 0.002mm.
Experimental result is as shown in table 1.
Table 1 bending strength test result
Experiment proves, the bending strength of embedded heating panel provided by the invention is all the heating plate of matrix higher than portland cement, and wherein, the embedded heating panel mechanical strength that embodiment 3 provides is the highest.Prove that embedded heating panel provided by the invention has very high mechanical strength.
Experimental example 2 thermal shock resistance is tested
Thermal shock resistance test is carried out to the embedded heating panel provided in embodiment 1-3, and contrasts with the embedded heating panel that portland cement is matrix.
Method of testing: each test heater plate is heated to peak power, keeps 30 minutes, then power-off, and whether drop in the cold water of 20 DEG C rapidly, 50 times repeatedly, observe its surface and ftracture, and test its residual mechanical intensity, method of testing is with experimental example 1.
Test result is as shown in table 2.
Table 2 thermal shock resistance test result
Experiment proves, heating plate provided by the invention, and thermal shock resistance is good, can adapt to the cold and hot operational environment repeatedly worked of heating plate, is conducive to the useful life of improving heating plate.
Experimental example 3 insulating properties is tested
The resistance of the embedded heating panel provided in Wheatstone bridge method testing example 1-3 is provided, and contrasts with the embedded heating panel that portland cement is matrix.Test result is as shown in table 3.
Table 3 insulating properties test result
Experiment proves, embedded heating panel resistance provided by the invention is large, good insulating, can ensure the fail safe of product in use procedure.
Experimental example 4 thermal radiation is tested
Infrared emittance test is carried out to the embedded heating panel provided in embodiment 1-3, and contrasts with the embedded heating panel that portland cement is matrix.Test result is as shown in table 4.
Table 4 insulating properties test result
| 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 |
Experiment proves, embedded heating panel infrared emittance provided by the invention is high, is conducive to heating the required object heated up, and finds in experimentation, and this heating plate cooling rate is slow, and therefore energy-saving effect is obvious.Same heating 10ml, 25 DEG C of water are up to evaporating completely, this heating plate required time shortens 15%-25% than portland cement heating plate, it is described, and not only radiance is high, also there is the advantage that heat-conductive characteristic is good, can effective saves energy, the heat energy of electric energy conversion is effectively gone out by conduct radiation, adds object.
In sum, embedded heating panel provided by the invention, has high thermal shock stability, and after 50 anti-thermal shock experiments, residual mechanical high strength; This heating plate insulating properties is high, use safety; Infrared emittance is high, heat transfer is good, therefore can effective saves energy.Further, this heating plate has good mechanical performance and thermal shock resistance, effectively can extend the service time of this heating plate.Extend its useful life.The preparation method of embedded heating panel provided by the invention, the method adopts the preparation technology of press ceramic, there is convenience, simply, be easy to the advantages such as grasp, be applicable to large-scale production, and the heat treated of metallic paint industry, woodwork coating industry, industrial, electroplating industry, the electric wire industry of plastics coating, food industry, packaging industry, dyeing and finishing fiber industry, electronics industry, glass industry, household appliances class etc. can be widely used in.
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. an embedded heating panel, is characterized in that, comprises matrix and heating wire;
Wherein, described matrix, comprises the following component according to mass fraction preparation: clay 10-14 part, feldspar 1-5 part, cordierite 13-17 part, mullite 30-40 part, perlite 30-40 part.
2. embedded heating panel according to claim 1, is characterized in that, described matrix, in mass fraction, specifically comprises following component: clay 11-13 part, feldspar 2-4 part, cordierite 14-16 part, mullite 34-36 part, perlite 34-36 part.
3. embedded heating panel according to claim 1, is characterized in that, described heating wire is nichrome wire.
4. a preparation method for the embedded heating panel according to any one of claim 1-3, is characterized in that, comprises the steps:
Basis material is carried out mixing, stirring according to set parts by weight, obtains compound; Compound is compressing, obtain base substrate; While compacting, heating wire is imbedded base substrate; To be embedded with the base substrate demoulding of heating wire, sintering, spray-on coating, oven dry, sintering, namely obtains embedded heating panel.
5. the preparation method of embedded heating panel according to claim 4, is characterized in that, the rotating speed of described stirring is 250-300 rev/min.
6. the preparation method of embedded heating panel according to claim 4, is characterized in that, the pressure of described compacting is 300-500 ton.
7. the preparation method of embedded heating panel according to claim 4, is characterized in that, the temperature of described sintering is 1060-1100 DEG C.
8. the preparation method of embedded heating panel according to claim 4, is characterized in that, described spray-on coating is the one in glaze layer or high-temperaure coating.
9. the preparation method of embedded heating panel according to claim 4, is characterized in that, the temperature of described oven dry is 100-120 DEG C.
10. the preparation method of the embedded heating panel according to any one of claim 4-9, is characterized in that, the time of described oven dry is 2-5 hour.
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| 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 |
| CN106187249A (en) * | 2016-06-27 | 2016-12-07 | 江苏天宝陶瓷股份有限公司 | The electric ceramic of a kind of high thermal stability and preparation technology thereof |
| CN106175417A (en) * | 2016-09-28 | 2016-12-07 | 合肥海宝节能科技有限公司 | The manufacture method of the heating board of energy saving pot |
| CN107396474A (en) * | 2017-06-13 | 2017-11-24 | 泾县信达工贸有限公司 | A kind of processing method of energy-saving high-temperature-resistant heating plate of electric cooker |
| CN108793959A (en) * | 2018-07-31 | 2018-11-13 | 冯嘉豪 | A kind of low-k ceramic material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001060549A (en) * | 2000-01-01 | 2001-03-06 | Ibiden Co Ltd | Heater |
| 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 |
-
2016
- 2016-01-05 CN CN201610005264.5A patent/CN105517212B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370136A (en) * | 1999-06-07 | 2002-09-18 | 联合矿物产品公司 | Lightweight dry refractory |
| JP2001060549A (en) * | 2000-01-01 | 2001-03-06 | Ibiden Co Ltd | Heater |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187249A (en) * | 2016-06-27 | 2016-12-07 | 江苏天宝陶瓷股份有限公司 | The electric ceramic of a kind of high thermal stability and preparation technology thereof |
| 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 |
| 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 |
| CN106175417A (en) * | 2016-09-28 | 2016-12-07 | 合肥海宝节能科技有限公司 | The manufacture method of the heating board of energy saving pot |
| 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 |
| CN107396474A (en) * | 2017-06-13 | 2017-11-24 | 泾县信达工贸有限公司 | A kind of processing method of energy-saving high-temperature-resistant heating plate of electric cooker |
| 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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|---|---|
| CN105517212B (en) | 2018-04-13 |
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