CN109678457A - A kind of refractory ceramics product for electromagnetic oven - Google Patents
A kind of refractory ceramics product for electromagnetic oven Download PDFInfo
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- CN109678457A CN109678457A CN201811650520.1A CN201811650520A CN109678457A CN 109678457 A CN109678457 A CN 109678457A CN 201811650520 A CN201811650520 A CN 201811650520A CN 109678457 A CN109678457 A CN 109678457A
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- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- 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
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- 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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Abstract
The present invention is suitable for ceramic processing technique field, provide a kind of refractory ceramics product of electromagnetic oven, it include: ridgity material, clay and Nucleating Agent, the components by weight percent of the ridgity material, clay and Nucleating Agent is respectively 45-50%, 45-50% and 2-5%, wherein, the ridgity material includes low bulk lithium based material and low bulk magnesium based material.Wherein, ridgity material, clay improve the high temperature resistance of ceramic product; Nucleating Agent issues biochemical reaction in high temperature firing; form crystallite; ceramic product is formed and is protected, and reduces the coefficient of expansion of ceramic product, to guarantee ceramic product under the premise of resistant to high temperature; the coefficient of expansion is reduced, ceramic product swelling cracking during electromagnetic oven heating is prevented.
Description
Technical field
The invention belongs to field of ceramic processing more particularly to a kind of refractory ceramics products for electromagnetic oven.
Background technique
Electromagnetic oven have many advantages, such as it is easy to use, there is not open fire so that it is applied and its extensively in daily life, electricity
Magnetic furnace is the principle heated using vortex induction to object heating, and the carrier media used on electromagnetic oven is in electromagnetic induction
The metal material of eddy current can be generated down.
Pursuit due to present people to quality of the life, cook or Baoshang in terms of like using ceramic product.Therefore
Just the ceramic products such as the ceramic pot for electromagnetic oven, ceramic pan are derived, however, in use due to electromagnetic oven, electromagnetism
Furnace temperature rising is exceedingly fast, therefore ceramic product is required to be also required to be rapidly heated, to meet electromagnetic oven requirement.It is existing
Ceramic product thermal shock temperature generally can only achieve 400 degrees centigrades, but generally require thermal shock temperature when using on electromagnetic oven
Degree is at 600 degrees Celsius or more, so that ceramic product be made to meet the temperature requirement of electromagnetic oven.
But its higher coefficient of expansion of the resistance to thermal shock temperature of ceramic product is lower, coefficient of expansion height causes ceramic product to hold
Easily there is crack problem.
Summary of the invention
The embodiment of the present invention provides a kind of refractory ceramics product for electromagnetic oven, it is intended to solve to propose in background technique
The problem of.
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product packets
Include: ridgity material, clay and Nucleating Agent, the components by weight percent of the ridgity material, clay and Nucleating Agent are respectively 45-50%, 45-
50% and 2-5%, wherein
The ridgity material includes low bulk lithium based material and low bulk magnesium based material.
Optionally, the Nucleating Agent includes the one or more of ZrO2, TiO2 and zinc oxide.
Optionally, the Nucleating Agent includes ZrO2, TiO2 and zinc oxide, and the quality of described ZrO2, TiO2 and zinc oxide
Than for 1:1:1.
Optionally, the low bulk lithium based material includes petalite, spodumene and lithium carbonate, low bulk magnesium system material
Material includes cordierite.
Optionally, the low bulk lithium based material includes petalite, spodumene, eucryptite and lithium carbonate.
Optionally, the components by weight percent of the petalite, spodumene, eucryptite, lithium carbonate and cordierite be 45-55%,
10-15%, 1-5%, 15-20% and 5-15%.
Optionally, the refractory ceramics product further includes the Low Thermal Expantion Glaze being attached on product ontology.
Optionally, the Low Thermal Expantion Glaze includes petalite, kaolin, zinc oxide, talcum, wollastonite and toner.
Optionally, the weight ratio of the petalite, kaolin, zinc oxide, talcum, wollastonite and toner is respectively as follows:
75-80%, 10-20%, 1-5%, 3-5%, 5-10% and 5-10%.
Optionally, the weight ratio of the petalite, kaolin, zinc oxide, talcum, wollastonite and toner is respectively
75%, 10%, 2%, 3%, 5% and 5%.
Advantageous effects of the invention:
Refractory ceramics product disclosed in the present application for electromagnetic oven, comprising: ridgity material, clay and Nucleating Agent, institute
The components by weight percent for stating ridgity material, clay and Nucleating Agent is respectively 45-50%, 45-50% and 2-5%, wherein the ridge material
Material includes low bulk lithium based material and low bulk magnesium based material.Wherein, ridgity material, clay improve the heat-resisting quantity of ceramic product
Can, Nucleating Agent issues biochemical reaction in high temperature firing, forms crystallite, is formed and is protected to ceramic product, and reduces ceramic product
The coefficient of expansion, thus guarantee ceramic product under the premise of resistant to high temperature, reduce the coefficient of expansion, prevent ceramic product in electromagnetic oven
Swelling fracture in heating process.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
In the prior art, it is needed and electromagnetic oven applied to the heating temperature of the ceramic product of electromagnetic oven or ceramic liner
Match, that is to say, that the attainable maximum temperature of electromagnetic oven can make ceramic product be resistant to this maximum temperature.But existing ceramics
In the material of product, heating temperature is higher, and the coefficient of expansion is higher, causes during heating, ceramic product expansion, to occur
Crack.
The embodiment of the present application provides a kind of refractory ceramics product for electromagnetic oven, and the high temperature resistant for electromagnetic oven is made pottery
Porcelain products include: ridgity material, clay and Nucleating Agent, wherein the components by weight percent of ridgity material, clay and Nucleating Agent is respectively
45-50%, 45-50% and 2-5%, wherein the ridgity material includes low bulk lithium based material and low bulk magnesium based material.
Low bulk lithium based material includes petalite, spodumene and lithium carbonate, and low bulk magnesium based material includes cordierite.Its
In, petalite have the characteristics that it is corrosion-resistant, resistant to high temperature, spodumene have stablize, resistance to thermal property, the ceramics of spodumene are added
Product can be heated directly on electromagnetic oven, can also be fried, be fried under various heat sources, stew, product of cooking in refrigerator cold-storage, be subjected to long-term
Rapid heat cycle under the conditions of test it is still intact, have good thermal stability.Wherein, cordierite have high temperature resistant by
The feature good in fire resistance, expanded by heating rate is low, lithium carbonate (lithium carbonate) be colourless monoclinic system crystal body or white powder,
It processes and produces lithia in thermal histories, the low expansion of ceramic product can be improved.
Further, low bulk lithium based material includes petalite, spodumene, eucryptite and lithium carbonate, wherein eucryptite
The high temperature resistance for further increasing ceramic product, the common guarantee ceramic product in conjunction with petalite, spodumene and lithium carbonate
High temperature resistance.
In the specific implementation process, the components by weight percent of petalite, spodumene, eucryptite, lithium carbonate and cordierite is 45-
55%, 10-15%, 1-5%, 15-20% and 5-15%.
The weight ratio of clay needs to reach 45% or more, and ceramic product could form, but if the weight ratio of clay is super
50% is crossed, then the weight ratio of other components reduces, influences the high temperature resistance and the coefficient of expansion of ceramic product, therefore, clay
Ratio is 45%-50%.
The addition of Nucleating Agent makes ceramic product issue biochemical reaction in high temperature firing, forms crystallite, and soaking time
Length and oxidizing atmosphere control be suitable for decide the size of crystallization, and then can pass through control crystallization size control ceramics produce
The coefficient of expansion of product.Specifically, the thermal expansion coefficient of Nucleating Agent can achieve less than or equal to 0.5 × 10-6Degree Celsius.
Seen from the above description, petalite, spodumene and lithium carbonate increase the heat-resisting quantity and stabilization of ceramic product
Property, Nucleating Agent reduces the coefficient of expansion of ceramic product, thus reduce ceramic product by the coefficient of expansion under the premise of resistant to high temperature,
It prevents ceramic product from expanding at high temperature, increases the stability of ceramic product.
Nucleating Agent includes ZrO2、TiO2It is one or more with zinc oxide, it is preferred that Nucleating Agent includes ZrO2、 TiO2With
Zinc oxide, and the ZrO2、TiO2Mass ratio with zinc oxide is 1:1:1.
ZrO2Property with high-melting-point, high resistivity, high refractive index and low thermal coefficient of expansion is monoclinic crystal when low temperature
System, in 1100 DEG C of tetragonal structures formed above, in 1900 DEG C of cubics formed above, wherein thermal expansion coefficient be 10.3 ×
10-6/℃。TiO2Adhesion strength is strong, fusing point is high, has been not easy chemical change, can be improved the heat resistance of ceramic product, and zinc oxide is
A kind of oxide of zinc, is insoluble in water, forms crystallite in the case that meeting is with heating temperature during making ceramic product,
To improve the low expansion character of ceramic product.
ZrO2、TiO2Mass ratio with zinc oxide is 1:1:1, it is ensured that the crystal size formed in sintering procedure, it is full
Sufficient ceramic product tolerance can guarantee the thermal expansion coefficient of ceramic product by the temperature of electromagnetic oven heating, prevent ceramic product
Expansion.
In addition, the refractory ceramics product for electromagnetic oven further includes the Low Thermal Expantion Glaze being attached on product ontology, pass through
Further product ontology can be protected using Low Thermal Expantion Glaze, to improve the low expansion character of ceramic product.
Low Thermal Expantion Glaze includes petalite, kaolin, zinc oxide, talcum, wollastonite and toner, petalite, kaolin,
Zinc oxide, talcum, wollastonite and toner weight ratio be respectively as follows: 75-80%, 10-20%, 1-5%, 3-5%, 5-10%
And 5-10%.Preferably, the weight ratio of petalite, kaolin, zinc oxide, talcum, wollastonite and toner be respectively 75%,
10%, 2%, 3%, 5% and 5%.
Embodiment one
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 48% ridgity material, 50% clay and 2% Nucleating Agent, median ridge material
Material by 50% petalite, 15% spodumene, 20% lithium carbonate and 15% cordierite;Nucleating Agent is ZrO2。
Embodiment two
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 47% ridgity material, 50% clay and 3% Nucleating Agent, median ridge material
Material by 50% petalite, 15% spodumene, 20% lithium carbonate and 15% cordierite;Nucleating Agent is ZrO2。
Embodiment three
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 45% ridgity material, 50% clay and 5% Nucleating Agent, median ridge material
Material by 50% petalite, 15% spodumene, 20% lithium carbonate and 15% cordierite;Nucleating Agent is ZrO2。
Example IV
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 45% ridgity material, 50% clay and 5% Nucleating Agent, median ridge material
Material by 50% petalite, 15% spodumene, 20% lithium carbonate and 15% cordierite;Nucleating Agent is that weight ratio is 1:1:
1 ZrO2、TiO2And zinc oxide.
Embodiment five
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 45% ridgity material, 50% clay and 5% Nucleating Agent, median ridge material
Material is by 50% petalite, 15% spodumene, 5% eucryptite, 15% lithium carbonate and 15% cordierite;Nucleating Agent is
Weight ratio is the ZrO of 1:1:12、TiO2And zinc oxide.
Embodiment six
The embodiment of the invention provides a kind of refractory ceramics product for electromagnetic oven, the refractory ceramics product has
The material of following components by weight percent is prepared: 45% ridgity material, 50% clay and 5% Nucleating Agent, median ridge material
Material is by 50% petalite, 15% spodumene, 5% eucryptite, 15% lithium carbonate and 15% cordierite;Nucleating Agent is
Weight ratio is the ZrO of 1:1:12、TiO2And zinc oxide;The refractory ceramics product further include be attached to it is low on product ontology
Glaze is expanded, the Low Thermal Expantion Glaze includes 75% petalite, 10% kaolin, 2% zinc oxide, 3% talcum, 5%
Wollastonite and 5% toner.
In conjunction with the several embodiments of foregoing exemplary, at this to refractory ceramics product provided by the embodiments of the present application into
One step explanation.
Comparative example one, embodiment two and embodiment three, compare by test of many times, ceramics corresponding to embodiment three
The thermal shock temperature of product can be higher, can reach 650 degrees Celsius, low-expansion coefficient can reach 10.3*10-6/ DEG C or less.
Comparative example three and example IV, when use Nucleating Agent is ZrO2、TiO2And zinc oxide, and its weight ratio is
In the case where 1:1:1, in the environment of firing under carrying out 1350 degree celsius temperatures to ceramic product, nucleus body is produced through pyroreaction
Raw microcrystalline coating is more uniform, so that the low-expansion coefficient of ceramic product further be effectively reduced.
Comparative example four and embodiment five increase the eucryptite for having 5% in embodiment five, since the high temperature of eucryptite is resistance to
Fire is more significant, therefore, compared with example IV, is added with its thermal shock temperature of the ceramic product of eucryptite by test of many times
It can achieve 700 degrees Celsius, to effectively improve the thermal shock temperature of ceramic product, make its more high temperature resistant, improve its use
Service life avoids long-time service from damaging.
Comparative example five and embodiment six, due to increasing one layer of Low Thermal Expantion Glaze, and low bulk outside ceramic body
Glaze is prepared by low bulk petalite, zinc oxide etc., so that ceramic product made by embodiment six and embodiment five are made
At ceramic product compare, the coefficient of expansion of ceramic product is lower.
Certainly, embodiment of above is merely illustrative, and embodiment can be referring to above in other in the embodiment of the present application
Several embodiments do not elaborate herein.
Using the refractory ceramics product provided by the embodiments of the present application for electromagnetic oven, mentioned by ridgity material, clay
The high temperature resistance of high ceramic product, Nucleating Agent issue biochemical reaction in high temperature firing, form crystallite, are formed to ceramic product
Protection, and the coefficient of expansion of ceramic product is reduced, thus guarantee that ceramic product under the premise of resistant to high temperature, reduces the coefficient of expansion,
Prevent ceramic product swelling fracture during electromagnetic oven heating.
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 refractory ceramics product for electromagnetic oven, which is characterized in that the refractory ceramics product includes: ridge material
Material, clay and Nucleating Agent, the components by weight percent of the ridgity material, clay and Nucleating Agent are respectively 45-50%, 45-50% and 2-
5%, wherein
The ridgity material includes low bulk lithium based material and low bulk magnesium based material.
2. being used for the refractory ceramics product of electromagnetic oven as described in claim 1, which is characterized in that the Nucleating Agent includes
ZrO2、TiO2It is one or more with zinc oxide.
3. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 2, which is characterized in that the Nucleating Agent includes
ZrO2、TiO2And zinc oxide, and the ZrO2、TiO2Mass ratio with zinc oxide is 1:1:1.
4. being used for the refractory ceramics product of electromagnetic oven as described in claim 1, which is characterized in that low bulk lithium system material
Material includes petalite, spodumene and lithium carbonate, and the low bulk magnesium based material includes cordierite.
5. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 4, which is characterized in that low bulk lithium system material
Material includes petalite, spodumene, eucryptite and lithium carbonate.
6. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 5, which is characterized in that the petalite, lithium
Pyroxene, eucryptite, lithium carbonate and cordierite components by weight percent be 45-55%, 10-15%, 1-5%, 15-20% and 5-15%.
7. being used for the refractory ceramics product of electromagnetic oven as described in claim 1, which is characterized in that the refractory ceramics produces
Product further include the Low Thermal Expantion Glaze being attached on product ontology.
8. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 7, which is characterized in that the Low Thermal Expantion Glaze includes
Petalite, kaolin, zinc oxide, talcum, wollastonite and toner.
9. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 8, which is characterized in that the petalite, height
Ridge soil, zinc oxide, talcum, wollastonite and toner weight ratio be respectively as follows: 75-80%, 10-20%, 1-5%, 3-5%, 5-
10% and 5-10%.
10. being used for the refractory ceramics product of electromagnetic oven as claimed in claim 9, which is characterized in that the petalite, height
Ridge soil, zinc oxide, talcum, wollastonite and toner weight ratio be respectively 75%, 10%, 2%, 3%, 5% and 5%.
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CN111517771A (en) * | 2020-04-03 | 2020-08-11 | 电子科技大学 | Microwave dielectric ceramic material and preparation method thereof |
Citations (9)
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