CN109727767A - A kind of ceramic liner and preparation method thereof for electric cooker - Google Patents

A kind of ceramic liner and preparation method thereof for electric cooker Download PDF

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Publication number
CN109727767A
CN109727767A CN201811650495.7A CN201811650495A CN109727767A CN 109727767 A CN109727767 A CN 109727767A CN 201811650495 A CN201811650495 A CN 201811650495A CN 109727767 A CN109727767 A CN 109727767A
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CN
China
Prior art keywords
conductive film
magnetic conductive
ceramic liner
liner
ceramic
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CN201811650495.7A
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Chinese (zh)
Inventor
资利云
施小罗
李绍江
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HUNAN JIASHENG ELECTRIC CERAMIC NEW MATERIALS CO Ltd
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HUNAN JIASHENG ELECTRIC CERAMIC NEW MATERIALS CO Ltd
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Priority to CN201811650495.7A priority Critical patent/CN109727767A/en
Publication of CN109727767A publication Critical patent/CN109727767A/en
Pending legal-status Critical Current

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Abstract

The present invention is suitable for ceramic processing technique field, provide a kind of ceramic liner and preparation method thereof for electric cooker, wherein, a kind of ceramic liner for electric cooker, including liner ontology and magnetic conductive film, the bottom of the liner ontology and lateral wall at least provided with a circle magnetic conductive film, and the magnetic conductive film is made of silver powder, iron oxygen magnetizer and glass powder.Due to being provided with a circle magnetic conductive film in ceramic liner outer wall bottom and side wall periphery, to after ceramic liner is placed in electric cooker, it can be formed and be vortexed by the heating ring of electric cooker bottom-heated disk and side wall and magnetic conductive film, induction heating is carried out to ceramic liner by magnetic conductive film, and due to the magnetic conductive film using silver powder, iron oxygen magnetizer and glass powder, the heat-conducting effect that can effectively ensure that magnetic conductive film and electric cooker are to the heating effect of ceramic liner.

Description

A kind of ceramic liner and preparation method thereof for electric cooker
Technical field
The invention belongs to field of ceramic processing more particularly to a kind of ceramic liners and preparation method thereof for electric cooker.
Background technique
Electric cooker is also referred to as grill pan, electric cooker.Be be changed into using electric energy it is interior can cooker, easy to use, sanitation and hygiene, Also have and a variety of operating functions such as is steamed, boiled, stewed, simmered to food.
Currently, common electric cooker is divided into heat preservation self-action, timing warm-keeping and novel micro computer controlled standard three classes, And the liner of most of electric cooker is the aluminum pot that bottom is brushed with one layer of conductive metal powder, reaches the mesh to liner heating with this 's.Pursuit with present people to quality of the life, cook or Baoshang in terms of like using ceramic product.However, due to Ceramic product belongs to nonmetallic materials, and eddy current cannot be generated under electromagnetic induction, to limit ceramic product in electric meal Application on pot.
Therefore, ceramic product how to be made to be applied on electric cooker that the application technical problem urgently to be resolved will be become.
Summary of the invention
The embodiment of the present invention provides a kind of ceramic liner for electric cooker, it is intended to which the technology solved in background technique is asked Topic.
In a first aspect, the embodiment of the invention provides a kind of ceramic liner for electric cooker, including liner ontology and Positioned at the outer wall bottom of the liner ontology and at least one circle magnetic conductive film of lateral wall, the magnetic conductive film is by silver powder, iron oxygen Magnetizer and glass powder composition.
Optionally, the bottom of the liner ontology, be disposed with along center the magnetic conductive film of multi-ring annular outward, it is more Spacing distance is equal between the magnetic conductive film of ring shape.
Optionally, the lateral wall of the liner ontology, the magnetic conductive film of multi-ring annular is provided with this from bottom to top, it is more Spacing distance is equal between the magnetic conductive film of ring shape.
Optionally, the magnetic conductive film is by the silver powder of 60-80%, the glass of 10-15% iron oxygen magnetizer and 10-15% Powder composition.
Optionally, the magnetic conductive film is made of 70% silver powder, 15% iron oxygen magnetizer and 15% glass powder.
Second aspect, the embodiment of the invention provides a kind of preparation methods of ceramic liner, are used to prepare first aspect institute The ceramic liner stated, comprising:
Step S1: respectively by ceramic technoloigcal process liner ontology and by silver powder, iron oxygen magnetizer and glass powder Make magnetic conductive film;
Step S2: the magnetic conductive film for posting drawing paper is soaked in water 1-2 minutes;
Step S3: magnetic conductive film is torn from drawing paper, and magnetic conductive film is labelled to the bottom of liner body outer wall;
Step S4: the moisture of the magnetic conduction film surface of ceramic liner bottom is dried;
Step S5: the ceramic liner with magnetic conductive film is placed on naturally dry under normal temperature environment;
Step S6: being placed in curing molding in solidification kiln for the ceramic liner after natural drying with magnetic conductive film, then will pottery Porcelain liner natural cooling.
Optionally, the step S5 is specifically included: by the ceramic liner with magnetic conductive film be placed in 30 degrees Celsius, ventilation and nothing At least 24 hours in the environment of illumination, until naturally dry.
Optionally, ceramic liner is placed in the step S6 solidify curing molding in kiln include: will be with magnetic conductive film Ceramic liner, which is placed in the solidification kiln of 800 celsius temperatures, keeps the temperature 30 minutes curing moldings.
Optionally, ceramic liner is placed in curing molding in solidification kiln in the step S6 includes:
Step S61: the temperature of normal temperature cure kiln is heated to 100 degrees Celsius;
Step S62: the ceramic liner with magnetic conductive film is placed in 100 degrees Celsius of solidification kiln;
Step S63: the temperature of kiln will be solidified in 150 minutes from 100 degrees Centigrades to 800 degrees Celsius, then to 800 Degree Celsius solidification kiln keep the temperature 30 minutes.
Optionally, the step S63 further comprises:
Step S631: 100 degrees Celsius of solidification kiln is uniformly heated to 300 degrees Celsius in 10 minutes, and keeps the temperature 20 points Clock;
Step S632: 300 degrees Celsius of solidification kiln is uniformly heated to 500 degrees Celsius in 10 minutes, and keeps the temperature 20 points Clock;
Step S633: 500 degrees Celsius of solidification kiln is uniformly heated to 700 degrees Celsius in 20 minutes, and keeps the temperature 40 points Clock;
Step S634: 700 degrees Celsius of solidification kiln is uniformly heated to 800 degrees Celsius in 30 minutes, and keeps the temperature 30 points Clock.
The present invention it is achieved compared with prior art the utility model has the advantages that
A kind of ceramic liner for electric cooker provided in an embodiment of the present invention, including liner ontology and magnetic conductive film, this is interior The bottom of gallbladder ontology and lateral wall at least provided with a circle magnetic conductive film, and the magnetic conductive film is by silver powder, iron oxygen magnetizer It is formed with glass powder.Due to being provided with a circle magnetic conductive film in ceramic liner outer wall bottom and side wall periphery, thus in ceramic liner After being placed in electric cooker, it can be formed and be vortexed by the heating ring of electric cooker bottom-heated disk and side wall and magnetic conductive film, led to It crosses magnetic conductive film and induction heating, and the magnetic conductive film due to using silver powder, iron oxygen magnetizer and glass powder is carried out to ceramic liner, The heat-conducting effect and electric cooker that can effectively ensure that magnetic conductive film are to the heating effect of ceramic liner.
The preparation method of a kind of ceramic liner provided in an embodiment of the present invention, by being attached at ceramic liner bottom to magnetic conductive film Portion and side wall circumference, and successively use pad pasting, dry moisture, naturally dry and the curing molding in solidification kiln, so as to have Effect guarantees the combination of magnetic conductive film and ceramic liner, and being attached to magnetic conductive film effectively on ceramic liner makes the two form one, Due to curing molding in solidification kiln, the high-temperature heating requirement of ceramic liner can not only be met, and can satisfy to ceramics During liner heats, the case where magnetic conductive film will not be removed from ceramic liner, ceramic liner is greatly improved in electric cooker On the quality that uses.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ceramic liner provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of another ceramic liner provided in an embodiment of the present invention;
Fig. 3 is a kind of flow diagram of ceramic liner preparation method provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Compared with prior art, the embodiment of the present application is by providing one kind by silver powder, iron oxygen magnetizer and glass powder The magnetic conductive film of composition is attached on the bottom and side wall circumference of ceramic liner outer wall, through magnetic conductive film in electric cooker use process Ceramic liner is heated in the thermally conductive effect of magnetic conduction, to realize that ceramic liner to the purpose of heat foods, reaches pottery with this Application of the porcelain liner in electric cooker.Below with reference to attached drawing to ceramic liner provided by the embodiments of the present application and preparation method thereof It is described in detail.
Embodiment one
The structural schematic diagram of ceramic liner for electric cooker shown in Figure 1.As shown in Figure 1, the ceramic liner packet Liner ontology 1 and bottom magnetic conductive film 2 and side wall magnetic conductive film 3 are included, bottom magnetic conductive film 2 can be ring structure, or round Structure, and side wall magnetic conductive film 3 is cirque structure, herein with no restrictions, wherein the liner ontology 1 is ceramics resistant to high temperature Product can be process by existing ceramic process, not elaborated herein specifically, the bottom magnetic conductive film 2 and side wall magnetic conduction 3 material of film is identical, is made of silver powder, iron oxygen magnetizer and glass powder, by magnetic conductive film manufacture craft by silver powder, Iron oxygen magnetizer and glass powder are uniformly mixed and are fabricated to the magnetic conductive film of marble paper structure and magnetic conductive film and paster combine, can be referring to The relative production technique of related art.
In the specific implementation process, the magnetic conductive film by 60-80% silver powder, 10-15% iron oxygen magnetizer and 10- 15% glass powder composition, since silver powder and iron oxygen magnetizer have the function of magnetic conduction and thermally conductive, not only by glass powder Silver powder and iron oxygen magnetizer can effectively be bonded, and leading for silver powder and iron oxygen magnetizer can be further increased Magnetic and heat-conducting effect.
Further, in the specific implementation process, magnetic conductive film can by 70% silver powder, 15% iron oxygen magnetizer and 15% glass powder composition, can be such that 15% iron oxygen magnetizer is sufficiently mixed with silver powder by 15% glass powder, and Guarantee the sticking effect of magnetic conductive film, to effectively improve the heat-conducting effect of magnetic conductive film, and then promote the heating efficiency of ceramic liner, And it can guarantee the low bulk effect of the ceramic liner.
Embodiment two
On the basis of Fig. 1, the embodiment of the present application also provides another be used for electric cooker ceramic liner, referring to Fig. 2 show the structural schematic diagram of another ceramic liner provided by the embodiments of the present application.
As shown in Fig. 2, the ceramic liner includes liner ontology 1,21 and of the first magnetic conductive film that 1 bottom of liner ontology is arranged in Second magnetic conductive film 22 and the third magnetic conductive film 31 and the 4th magnetic conductive film 34 that 1 lateral wall of liner ontology is set, wherein first Magnetic conductive film 21, the second magnetic conductive film 22, third magnetic conductive film 31 and the 4th magnetic conductive film 34 are ring structure, and the first of ring structure The central point of magnetic conductive film 21 and the second magnetic conductive film 22 is overlapped with the central point of 1 bottom of liner ontology, i.e. the first magnetic conductive film 21 and Central point of two magnetic conductive films 22 along ceramic wafer bottom is set gradually outward, and between the first magnetic conductive film 21 and the second magnetic conductive film 22 Spacing is equal;The third magnetic conductive film 31 of ring structure and the axis of the 4th magnetic conductive film 34 are mutually be overlapped with the central axes of ceramic liner It closes.Certainly, in the specific implementation process, the bottom and side wall of ceramic liner is not limited to only the first magnetic conductive film 21 and second and leads 34 liang of magnetic film 22, third magnetic conductive film 31 and the 4th magnetic conductive film circle magnetic conductive films can also include three circles or four circle magnetic conductive films, Er Qie In specific implementation process, a circle magnetic conductive film, two circle magnetic conductive film of side wall setting etc., the application is can be set in the bottom of ceramic liner It is only an illustrative embodiments, mode and with no restrictions in other does not elaborate specifically herein.
In the specific implementation process, the first magnetic conductive film 21, the second magnetic conductive film 22, third magnetic conductive film 31 and the 4th magnetic conductive film 34 Material it is equal, be made of silver powder, iron oxygen magnetizer and glass powder, and silver powder, iron oxygen magnetizer and glass powder Between weight ratio be 60-80%, 10-15% and 10-15%.Other related embodiments can be found in embodiment one, herein It does not elaborate.
Using ceramic liner provided by the embodiments of the present application, by the way that multi-ring annular is arranged in ceramic liner bottom and side wall Magnetic conductive film, by the way that the magnetic conductive film of multi-ring annular is arranged, can respectively by the bottom and side wall of ceramic liner to ceramic liner into Row heating, and can guarantee that the magnetic conductive film of ceramic liner bottom and side wall is more uniform by multi-ring annular magnetic conductive film, thus Can be effectively thermally conductive to ceramic liner progress magnetic conduction, guarantee that ceramic liner is evenly heated, guarantees the relatively thermal effect of ceramic liner more It is good.
Embodiment three
On the embodiment basis of the ceramic liner for electric cooker of above-mentioned offer, present invention also provides a kind of potteries The preparation method of porcelain liner, for details, reference can be made to the flow diagrams of ceramic liner preparation method shown in Fig. 3.
As shown in figure 3, ceramic liner preparation method provided by the embodiments of the present application includes the following steps:
Step S1: respectively by ceramic technoloigcal process liner ontology and by silver powder, iron oxygen magnetizer and glass powder Make magnetic conductive film.
In the specific implementation process, ceramic liner can by petalite, spodumene, eucryptite, cordierite, lithium carbonate and Clay is prepared by ceramic preparation process.Certainly, ceramic liner can be green by petalite, spodumene, eucryptite, violet Stone, lithium carbonate, clay and Nucleating Agent are prepared by ceramic preparation process.Electric cooker is disposed on additionally, due to ceramic liner In, and the space in electric cooker is limited, it is therefore desirable to the low expansion of ceramic liner is effectively ensured, therefore, the ceramic liner The carbonic acid of the petalite of 60-65%, the potassium feldspar of 10-15%, the clay agent of 10-12%, 3-8% are attached on liner ontology The toner of calcium and 5-10% avoids drawing that ceramic liner expansion is excessive to be caused so that the low-expansion coefficient of ceramic liner be effectively ensured It is not available the even failures such as electric cooker explosion.Magnetic conductive film can be uniformly mixed by silver powder, iron oxygen magnetizer and glass powder Afterwards by high temperature high pressure process, paster type magnetic conductive film is fabricated to by the magnetic conductive film preparation process of the prior art.
Step S2: the magnetic conductive film for posting drawing paper is soaked in water 1-2 minutes.
Since the magnetic conductive film made is paster type magnetic conductive film, therefore, it is necessary to which the paster on magnetic conductive film is removed, due to To be pasted by adhesive between magnetic conductive film and paster, therefore, can by the way that magnetic conductive film is soaked in water after 1-2 minutes, then By the paster removal in magnetic conductive film, during the drawing paper that can guarantee to tear in this way, avoid damaging magnetic conductive film.
Step S3: magnetic conductive film is torn from drawing paper, and magnetic conductive film is labelled to the bottom and side wall of liner ontology.
In specific implementation process, magnetic conductive film is torn from drawing paper, along the outside of liner body bottom portion gradually by magnetic conduction Film is uniformly attached on ceramic liner, and side in the magnetic conductive film of annular is cut, and then by magnetic conductive film along the outer of liner ontology Side wall is uniformly attached at the side wall of liner ontology, and guarantees that magnetic conductive film is paved and without offset.
Step S4: the moisture of the magnetic conduction film surface of ceramic liner bottom is dried.
When magnetic conductive film is when ceramic liner bottom and side wall is evenly laid out, since magnetic conductive film is taken out from water, pasting To after ceramic liner bottom, may all there be water around ceramic liner and around magnetic conductive film, therefore, it is necessary to pass through water suction Paper sufficiently dries the paper around magnetic conductive film, keeps the drying property of magnetic conductive film, also reduces the time dried in step S5.
Step S5: the ceramic liner with magnetic conductive film is placed on naturally dry under normal temperature environment.
In specific implementation process, although the moisture in step S4 around ceramic liner and magnetic conductive film is blotted by blotting paper, But also not fitting completely between magnetic conductive film and ceramic liner at this time, therefore, it is necessary to be placed in the ceramic liner with magnetic conductive film At least 24 hours in the environment of 30 degrees Celsius, ventilation and no light, until naturally dry, so that ceramic liner be effectively ensured and lead No moisture between magnetic film can be sufficiently bonded.
Step S6: being placed in curing molding in solidification kiln for the ceramic liner after natural drying with magnetic conductive film, then will pottery Porcelain liner natural cooling.
In the specific implementation process, in the step S6 by ceramic liner be placed in solidification kiln in curing molding include: by Ceramic liner with magnetic conductive film, which is placed in the solidification kiln of 800 celsius temperatures, keeps the temperature 30 minutes curing moldings.It needs to walk The rapid ceramic liner of S5 after natural drying, which is placed in hot setting kiln, carries out isothermal holding, not only guarantees that magnetic conductive film can be abundant It is attached in ceramic liner, and can guarantee that ceramic liner can realize high temperature application in electric cooker.
In addition, in the specific implementation process, in order to guarantee that magnetic conductive film is firmly attached on ceramic liner, and guaranteeing in ceramics The gallbladder later period uses for a long time in electric cooker, and the ceramic liner is further comprising the steps of the step of curing molding in solidifying kiln:
Step S61: the temperature of normal temperature cure kiln is heated to 100 degrees Celsius.
Step S62: the ceramic liner with magnetic conductive film is placed in 100 degrees Celsius of solidification kiln.
In specific implementation process, the ceramic liner for pasting magnetic conductive film can entirely be immersed in solidification kiln and be carried out at curing molding A part of ceramic liner only can also be immersed in solidification kiln and carry out curing molding processing by reason, herein with no restrictions, can be with Relevant operation is carried out according to specific technique and equipment.
Step S63: the temperature of kiln will be solidified in 150 minutes from 100 degrees Centigrades to 800 degrees Celsius, then to 800 Degree Celsius solidification kiln keep the temperature 30 minutes.
In specific implementation process, the ceramic liner with magnetic conductive film can make to solidify between 150 minutes kiln from 100 degrees Celsius 800 degrees Celsius are at the uniform velocity warming up to, can guarantee that ceramic liner during solidifying kiln heating, makes magnetic conductive film in temperature in this way The process risen is gradually combined with ceramic liner, improves its fastness;Meanwhile the ceramic liner with magnetic conductive film can also be at 150 points So that solidification kiln is warming up to 800 degrees Celsius from 100 degrees Celsius of stageds between clock, not only makes the process that as the temperature rises for magnetic conductive film It is gradually combined with ceramic liner, improves its fastness, and staged heats up, and can guarantee that ceramic liner more has on electric cooker The quick changed power of realization electric cooker of effect, i.e. guarantee magnetic conductive film magnetic conduction heat-conducting effect are more preferable.
Specifically, solidify kiln from 100 degrees Celsius to 800 degree Celsius carry out the process of staged heating, reference can be made to Lower step:
Step S631: 100 degrees Celsius of solidification kiln is uniformly heated to 300 degrees Celsius in 10 minutes, and keeps the temperature 20 points Clock;
Step S632: 300 degrees Celsius of solidification kiln is uniformly heated to 500 degrees Celsius in 10 minutes, and keeps the temperature 20 points Clock;
Step S633: 500 degrees Celsius of solidification kiln is uniformly heated to 700 degrees Celsius in 20 minutes, and keeps the temperature 40 points Clock;
Step S634: 700 degrees Celsius of solidification kiln is uniformly heated to 800 degrees Celsius in 30 minutes, and keeps the temperature 30 points Clock.
The step of being heated up by above-mentioned staged, can effectively ensure that magnetic conductive film is effectively attached in ceramic liner, in addition, Since electric cooker is often beated between different capacity in use, heating temperature of the corresponding electric cooker to ceramic liner Degree also has interim jump, therefore is heated up by staged, can effectively ensure that magnetic conductive film after curing molding, can adapt to High temperature under varying environment, to guarantee that magnetic conductive film is attached to the service life and using effect of ceramic liner bottom.
The ceramic liner and ceramic liner preparation process provided by using embodiment of above, can not only meet pottery The high-temperature heating requirement of porcelain liner, and can satisfy during to ceramic inner container heating, magnetic conductive film will not be out of ceramics The case where removing in gallbladder greatly improves the quality that ceramic liner uses on electric cooker.In addition, can also have by magnetic conductive film Effect improves the heating efficiency to ceramic liner.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of ceramic liner for electric cooker, which is characterized in that including liner ontology and positioned at the liner ontology At least one circle magnetic conductive film of outer wall bottom and lateral wall, the magnetic conductive film are made of silver powder, iron oxygen magnetizer and glass powder.
2. being used for the ceramic liner of electric cooker as described in claim 1, which is characterized in that bottom, the edge of the liner ontology Center is disposed with the magnetic conductive film of multi-ring annular outward, and spacing distance is equal between the magnetic conductive film of multi-ring annular.
3. being used for the ceramic liner of electric cooker as claimed in claim 1 or 2, which is characterized in that the outside of the liner ontology Wall, the magnetic conductive film for being provided with multi-ring annular with this from bottom to top, spacing distance phase between the magnetic conductive film of multi-ring annular Deng.
4. being used for the ceramic liner of electric cooker as described in claim 1, which is characterized in that the magnetic conductive film is by 60-80%'s The glass powder of silver powder, 10-15% iron oxygen magnetizer and 10-15% forms.
5. as claimed in claim 4 be used for electric cooker ceramic liner, which is characterized in that the magnetic conductive film by 70% metal Silver powder, 15% iron oxygen magnetizer and 15% glass powder composition.
6. a kind of preparation method of ceramic liner, is used to prepare ceramic liner as described in claim 1, which is characterized in that packet It includes:
Step S1: it is made respectively by ceramic technoloigcal process liner ontology and by silver powder, iron oxygen magnetizer and glass powder Magnetic conductive film;
Step S2: the magnetic conductive film for posting drawing paper is soaked in water 1-2 minutes;
Step S3: magnetic conductive film is torn from drawing paper, and magnetic conductive film is labelled to the bottom of liner body outer wall;
Step S4: the moisture of the magnetic conduction film surface of ceramic liner bottom is dried;
Step S5: the ceramic liner with magnetic conductive film is placed on naturally dry under normal temperature environment;
Step S6: being placed in curing molding in solidification kiln for the ceramic liner after natural drying with magnetic conductive film, then will be in ceramics Gallbladder natural cooling.
7. the preparation method of ceramic liner as claimed in claim 6, which is characterized in that the step S5 is specifically included: by band The ceramic liner of magnetic conductive film is placed in 30 degrees Celsius, divulges information and at least 24 hours in the environment of no light, until naturally dry.
8. the preparation method of ceramic liner as claimed in claim 6, which is characterized in that put ceramic liner in the step S6 It is placed in that solidify curing molding in kiln include: to protect in the solidification kiln for be placed in the ceramic liner with magnetic conductive film 800 celsius temperatures Warm 30 minutes curing moldings.
9. the preparation method of the ceramic liner as described in claim 6 or 8, which is characterized in that will be in ceramics in the step S6 Gallbladder is placed in curing molding in solidification kiln
Step S61: the temperature of normal temperature cure kiln is heated to 100 degrees Celsius;
Step S62: the ceramic liner with magnetic conductive film is placed in 100 degrees Celsius of solidification kiln;
Step S63: will solidify the temperature of kiln from 100 degrees Centigrades to 800 degrees Celsius in 150 minutes, then Celsius to 800 The solidification kiln of degree keeps the temperature 30 minutes.
10. the preparation method of ceramic liner as claimed in claim 9, which is characterized in that the step S63 further comprises:
Step S631: 100 degrees Celsius of solidification kiln is uniformly heated to 300 degrees Celsius in 10 minutes, and keeps the temperature 20 minutes;
Step S632: 300 degrees Celsius of solidification kiln is uniformly heated to 500 degrees Celsius in 10 minutes, and keeps the temperature 20 minutes;
Step S633: 500 degrees Celsius of solidification kiln is uniformly heated to 700 degrees Celsius in 20 minutes, and keeps the temperature 40 minutes;
Step S634: 700 degrees Celsius of solidification kiln is uniformly heated to 800 degrees Celsius in 30 minutes, and keeps the temperature 30 minutes.
CN201811650495.7A 2018-12-31 2018-12-31 A kind of ceramic liner and preparation method thereof for electric cooker Pending CN109727767A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109727767A true CN109727767A (en) 2019-05-07

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