KR20120025840A - The heat-resisting ceramic ware for a microwave oven - Google Patents

The heat-resisting ceramic ware for a microwave oven Download PDF

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Publication number
KR20120025840A
KR20120025840A KR1020100087989A KR20100087989A KR20120025840A KR 20120025840 A KR20120025840 A KR 20120025840A KR 1020100087989 A KR1020100087989 A KR 1020100087989A KR 20100087989 A KR20100087989 A KR 20100087989A KR 20120025840 A KR20120025840 A KR 20120025840A
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South Korea
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weight
heat
ferrite
microwave
silicon carbide
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KR1020100087989A
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Korean (ko)
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장재봉
박인성
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(주)네오플램
박인성
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Priority to KR1020100087989A priority Critical patent/KR20120025840A/en
Publication of KR20120025840A publication Critical patent/KR20120025840A/en

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/027Cooking- or baking-vessels specially adapted for use in microwave ovens; Accessories therefor
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/04Clay; Kaolin
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/131Inorganic additives
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607Thermal properties, e.g. thermal expansion coefficient

Abstract

PURPOSE: A heat-resistant ceramics for microwave is provided to reduce moisture dehydration rate of cooked material by including ferrite which absorbs microwave and vents heat. CONSTITUTION: A heat-resistant ceramics for microwave is manufactured by hardening molded mud at high temperature. The mud comprises 13-17 weight% of ferrite, 13-17 weight% of talc, 3-7 weight% of silicon carbide, 50-60 weight% of clay produced in San-cheong area, and 7-12 weight% of alumina. The ferrite is solid solution which impurities or alloying elements are dissolved in body-centered cubic crystal structured iron cooled under 900deg.C. The silicon carbide is composed of silicon and carbon in 1:1 ratio and combined using strong covalent bond, thereby having high hardness and specific thermal conductivity.

Description

전자레인지용 내열도자기{The heat-resisting ceramic ware for a microwave oven}Heat-resistant ceramics for microwave oven {The heat-resisting ceramic ware for a microwave oven}

본 발명은 전자레인지용 내열도자기에 관한 것으로, 보다 상세하게는 전자레인지의 마이크로파를 흡수함으로써 용기 자체에서 원적외선이 발산되어 조리물이 고르게 요리되며, 용기 자체가 열을 보유하고 있어 요리된 조리물의 온도가 오래도록 유지되는 장점이 있다.
The present invention relates to a heat-resistant ceramic for a microwave oven, and more particularly, by absorbing microwaves in the microwave, far-infrared rays are emitted from the container itself, so that the food is cooked evenly, and the container itself has heat, and thus the temperature of the cooked food. The advantage is that it lasts long.

일반적으로 전자레인지를 이용한 간단한 조리는 간편하고 편리한 장점이 있어 많이 활용되고 있다. 하지만 전자레인지를 통한 요리는 마이크로파가 조리물의 수분을 진동시켜 발생된 열을 활용하기 때문에, 조리 후 수분탈수로 인해 조리물의 식감이 떨어질 수 있는 단점이 있다. In general, simple cooking using a microwave oven has been used a lot because of the simple and convenient advantages. However, since cooking using microwaves uses heat generated by vibrating the moisture of the food, there is a disadvantage that the texture of the food may be degraded due to water dehydration after cooking.

또한, 전자레인지를 통한 요리는 마이크로파에 의해서만 조리되기 때문에 고열에 의해 조리해야 하는 찌개, 구이 등과 같은 조리물을 조리하기 어려운 단점이 있다.
In addition, since cooking through a microwave is only cooked by microwave, it is difficult to cook foods such as stew, grilling, etc., which should be cooked by high heat.

상기와 같은 문제점을 해결하기 위해 본 발명에 따른 전자레인지용 내열도자기는, 마이크로파를 흡수하여 열이 발산되는 페라이트를 포함함으로써 조리물의 수분탈수율을 줄일 수 있는 전자레인지용 내열도자기를 제공하고자 한다. In order to solve the above problems, a heat-resistant ceramic for a microwave oven according to the present invention is to provide a heat-resistant ceramic for a microwave oven that can reduce the water dehydration rate of the food by containing a ferrite that absorbs microwaves.

또한, 수분진동에 의한 열뿐 아니라 용기 자체에서 발생되는 열에 의해서 조리되므로 찌개, 구이 등과 같은 조리물(고열에 의해 조리되는 요리)의 조리가 가능한 전자레인지용 내열도자기를 제공하고자 한다.
In addition, since the cooking by the heat generated from the container itself as well as the heat caused by the vibration of moisture to provide a heat-resistant ceramic for the microwave oven capable of cooking food (cooking cooked by high heat) such as stew, roasting.

상기와 같은 문제점을 해결하기 위해 본 발명에 따른 전자레인지용 내열도자기는, 성형된 진흙이 높은 온도에서 경화된 도자기에 있어서, 상기 진흙은 페라이트, 활석, 탄화규소, 산청점토, 알루미나를 포함하는 것을 특징으로 한다.
In order to solve the problems described above, the heat-resistant ceramic for a microwave oven according to the present invention, in the ceramics molded in the molded mud at a high temperature, the mud includes ferrite, talc, silicon carbide, acid blue clay, alumina It features.

또한, 상기 진흙은 페라이트 13 내지 17중량%, 활석 13 내지 17중량%, 탄화규소 3 내지 7중량%, 산청점토 50 내지 60중량%, 알루미나 7 내지 12중량%를 포함하는 것을 특징으로 한다.
In addition, the mud is characterized in that it comprises 13 to 17% by weight of ferrite, 13 to 17% by weight of talc, 3 to 7% by weight of silicon carbide, 50 to 60% by weight of acid blue clay, 7 to 12% by weight of alumina.

이상 상술한 바와 같은 본 발명에 의하면, 전자레인지의 마이크로파를 흡수함으로써 용기 자체에서 원적외선이 발산되어 조리물이 고르게 요리되며, 용기 자체가 열을 보유하고 있어 요리된 조리물의 온도가 오래도록 유지되는 장점이 있다.
According to the present invention as described above, by absorbing microwaves in the microwave, far infrared rays are emitted from the container itself, and the food is cooked evenly, and the container itself has heat, so that the temperature of the cooked food is maintained for a long time. have.

상기 목적을 달성하기 위하여, 성형된 진흙이 높은 온도에서 경화된 도자기에 있어서, 상기 진흙은 페라이트 13 내지 17중량%, 활석 13 내지 17중량%, 탄화규소 3 내지 7중량%, 산청점토 50 내지 60중량%, 알루미나 7 내지 12중량%를 포함하는 것을 특징으로 하는 전자레인지용 내열도자기를 제공한다.
In order to achieve the above object, in the molded porcelain cured at high temperature, the mud is 13 to 17% by weight of ferrite, 13 to 17% by weight of talc, 3 to 7% by weight of silicon carbide, 50 to 60 It provides a heat-resistant ceramic for a microwave oven, characterized in that it comprises a weight%, 7 to 12% by weight of alumina.

상기 페라이트(ferrite)는 900℃이하에서 안정한 체심입방결정의 철에 합금원소 또는 불순물이 녹아서 된 고용체를 말한다. 본 발명에서는 실리콘이 고용된 페라이트(Si-Fe)를 사용하는 것이 바람직하다. 상기 페라이트는 소결성이 있어, 성형된 분말체를 가열하면 서로 단단히 밀착되어 고결되는 성질을 보유하고 있다.The ferrite refers to a solid solution in which alloying elements or impurities are dissolved in iron of a body-centered cubic crystal that is stable at 900 ° C. or lower. In the present invention, it is preferable to use ferrite (Si-Fe) in which silicon is dissolved. The ferrite is sinterable and has a property of being tightly adhered and solidified when the molded powder is heated.

상기 페라이트는 본 발명의 소결성을 위해 13 중량%이상 혼합되며, 후술할 활석과 함께 본 발명에 적절한 소결성을 부여하기 위해 17중량%를 초과하지 않는 것이 바람직하다.
The ferrite is mixed by more than 13% by weight for the sinterability of the present invention, it is preferable not to exceed 17% by weight in order to impart proper sinterability to the present invention with talc to be described later.

또한, 상기 활석(talc, Mg3(OH)2Si4O10)은 운모와 같은 결정구조를 가지는 단사정계에 속하는 암석으로 천연 함수규산마그네슘이다. In addition, the talc (talc, Mg 3 (OH) 2 Si 4 O 10 ) is a rock belonging to a monoclinic system having a mica-like crystal structure is natural magnesium silicate.

상기 활석은 본 발명에 소결성 및 저팽창성을 부여하기 위해 13중량%이상 혼합되며 상기 페라이트와 함께 본 발명에 적절한 소결성을 부여하기 위해 17중량%를 초과하지 않는 것이 바람직하다.
The talc is preferably at least 13% by weight in order to impart sinterability and low expandability to the present invention and does not exceed 17% by weight in order to impart proper sinterability to the present invention with the ferrite.

상기 탄화규소(Silicon Carbide, SiC)는 실리콘과 탄소가 1:1로 결합되어 있는 세라믹 원료로서 강한 공유결합으로 인해 경도가 크며, 높은 열전도도를 가진다. 상기 탄화규소는 본 발명의 강도를 높여주며, 전자레인지의 마이크로파에 의해 발생된 열이 고르게 전달될 수 있도록 한다. 이에 따라, 상기 탄화규소는 발생된 열을 고르게 전달하기 위해 3중량%이상 혼합되며, 7중량%를 초과할 경우 제조원가를 지나치게 높이게 된다.
Silicon carbide (SiC) is a ceramic raw material in which silicon and carbon are bonded 1: 1, and have a high hardness and high thermal conductivity due to strong covalent bonds. The silicon carbide increases the strength of the present invention and allows heat generated by microwaves in the microwave to be evenly transferred. Accordingly, the silicon carbide is mixed by more than 3% by weight in order to evenly transfer the generated heat, if the content exceeds 7% by weight will increase the manufacturing cost excessively.

상기 페라이트, 탄화규소는 전자레인지의 마이크로파에 의해 진동되고 상기 진동으로 발열되면서 원적외선이 발생된다. The ferrite and silicon carbide are vibrated by microwaves of the microwave oven and generated by the vibration, far infrared rays are generated.

상기 원적외선은 25μm 이상의 파장을 말하며, 복사열의 전달수단으로 파장이 길기 때문에 미립자에 의한 산란이 적고 진공 속에서도 열을 전달할 수 있는 특성이 있기 때문에, 본 발명이 마이크로파에 의해 발생된 원적외선을 발산함으로써 조리물에 효과적으로 열을 전달할 수 있다. The far-infrared ray refers to a wavelength of 25 μm or more, and because the wavelength is long as a means for transmitting radiant heat, there is little scattering caused by fine particles and heat can be transferred even in a vacuum, and thus the present invention emits far infrared rays generated by microwaves. It can transfer heat effectively.

또한, 본 발명에 담긴 조리물은 마이크로파에 의한 발열뿐 아니라 용기 자체의 발열 및 원적외선을 통한 열전달을 통해 빠른 시간내에 고르게 조리되며, 과도한 수분탈수로 인한 식감 저하가 방지될 수 있다. 본 발명에 담겨 조리된 조리물은 용기 자체의 발열로 인해 조리된 후에도 조리물의 온도가 유지된다.
In addition, the food contained in the present invention is cooked evenly in a short time through the heat generated by the microwave itself as well as the heat generated by the heat and far-infrared, it is possible to prevent the deterioration of the texture due to excessive water dehydration. The cooked food contained in the present invention maintains the temperature of the cooked food even after being cooked due to the heating of the container itself.

한편, 상기 산청점토는 경남 산청군에서 발견된 점토를 말하며, 현재는 높은 점도를 가진 점토에 수축력이 적은 광물질인 규사질 혼합점토가 포함되어 있는 점토를 지칭한다. 상기 산청점토는 본 발명에서 저팽창 원료로 사용됨과 동시에 높은 점도로 페라이트, 활석, 탄화규소 및 후술할 알루미나의 결합을 돕는다. 이에 따라, 상기 산청점토는 페라이트, 활석, 탄화규소 및 후술할 알루미나가 응집될 수 있도록 50중량%이상 혼합되는 것이 바람직하며, 페라이트, 활석, 탄화규소 및 후술할 알루미나의 작용이 방해되지 않도록 60중량%를 초과하지 않는 것이 좋다.
On the other hand, the Sancheong clay refers to the clay found in Sancheong-gun, Gyeongnam, and refers to a clay that contains a silica sand mixed clay which is a mineral of low shrinkage in the clay having a high viscosity. The acid blue clay is used as a low-expansion raw material in the present invention and at the same time helps to bind ferrite, talc, silicon carbide and alumina to be described later. Accordingly, the acid blue clay is preferably mixed at least 50% by weight so that ferrite, talc, silicon carbide and alumina to be described later are aggregated, 60 weight so as not to interfere with the action of ferrite, talc, silicon carbide and alumina to be described later. It is better not to exceed%.

화학성분표(단위 : 중량%)Chemical Composition Table (Unit: wt%)
성분

ingredient

SiO2

SiO2

Al2O3

Al2O3

Fe2O3

Fe2O3

MgO

MgO

Co

Co

Ni

Ni

MnO2

MnO2

CuO

CuO

SiC

SiC

페라이트

ferrite

90

90

2

2

1.5

1.5

2

2

1.5

1.5

2

2

활석

talc

68

68

32

32

산청점토

Sancheong Clay

54

54

45.9

45.9

탄화규소

Silicon Carbide

99

99

알루미나

Alumina

99

99

또한, 상기 알루미나(Aluminum Oxide or Alumina, Al2O3)는 급냉 및 급열에 대한 내구성이 강한 성분이며, 본 발명에 내화도를 부여하여 준다.In addition, the alumina (Aluminum Oxide or Alumina, Al 2 O 3 ) is a component resistant to quenching and rapid heat, and gives a degree of fire resistance to the present invention.

표 1에 기재된 바와 같이, 페라이트 및 활석만으로는 본 발명에 필요한 내구성 및 내화도를 위한 알루미나의 함량이 부족하여, 이를 보충하기 위해 본 발명에 알루미나를 별도로 혼합하였다. 본 발명이 적절한 내구성을 보유하기 위해, 상기 알루미나는 7중량%이상 혼합되는 것이 좋으며 12중량%를 초과할 경우에는 용기의 제조원가를 지나치게 높이게 된다.
As shown in Table 1, ferrite and talc alone lack the content of alumina for durability and fire resistance required by the present invention, and alumina was separately mixed in the present invention to supplement it. In order to maintain the proper durability of the present invention, the alumina is preferably mixed at least 7% by weight, and if it exceeds 12% by weight, the manufacturing cost of the container is too high.

본 발명 실시예의 용기표면 최고온도 시험결과(시험조건 : 700W, 조리물 없음, 단위 : ℃)Container surface maximum temperature test result of the embodiment of the present invention (test conditions: 700W, no food, unit: ℃)
가동기간

Operation period

1분

1 minute

2분

2 minutes

3분

3 minutes

4분

4 minutes

5분

5 minutes

6분

6 minutes

용기바닥온도

Container bottom temperature

160

160

250

250

300

300

350

350

400

400

420

420

용기측면온도

Container side temperature

130

130

150

150

180

180

200

200

220

220

250

250

상기 본 발명의 실시예는 페라이트 15중량%, 활석 15중량%, 탄화규소 5중량%, 산청점토 55중량%, 알루미나 10중량%를 포함하고 있으며, 상기 표 2의 용기표면 최고온도 시험은 700W의 전자레인지에서 가열된 본 발명 실시예의 시간별 바닥 및 측면 온도를 측정하였다. 상기 표 2에 기재된 바와 같이, 본 발명의 실시예는 전자레인지에서 1분만 가동되어도 130~160℃의 표면온도를 보유하게 되며, 가동시간이 6분이 되면 250~420℃의 표면온도를 보유하는 것을 알 수 있다. Example of the present invention includes 15% by weight of ferrite, 15% by weight of talc, 5% by weight of silicon carbide, 55% by weight of acidic clay, 10% by weight of alumina, the maximum temperature test of the container surface of Table 2 is 700W Hourly bottom and side temperatures of the inventive examples heated in the microwave were measured. As shown in Table 2, the embodiment of the present invention retains the surface temperature of 130 ~ 160 ℃ even if only one minute in the microwave oven, and has a surface temperature of 250 ~ 420 ℃ when the operating time is 6 minutes Able to know.

이에 따라, 본 발명에 담긴 조리물은 전자레인지의 마이크로파 이외에 본 발명으로부터 전달되는 열이 존재하기 때문에 빠른 시간에 끊는점에 도달할 수 있으며, 각종 국 및 찌개와 같이 고온에서 장시간 요리될수록 풍미가 있는 요리도 보다 빠르고 편리하게 조리할 수 있다.
Accordingly, the food contained in the present invention can reach a break point in a short time because there is heat transmitted from the present invention in addition to the microwave of the microwave, and the longer the cooking time at a high temperature, such as various soups and stew, the more flavorful Cooking is also faster and more convenient.

조리물의 온도변화 시험결과(시험조건 : 700W, 내용물 : 물, 단위 : ℃)Test result of temperature change of food (Test condition: 700W, Contents: Water, Unit: ℃)
초기온도

Initial temperature

평형온도

Equilibrium temperature

소요시간

Time

비교예

Comparative example

100

100

28

28

29'10"

29'10 "

실시예

Example

100

100

28

28

37'40

37'40

상기 표 3의 비교예는 플라스틱 일반용기이며, 상기 초기온도는 전자레인지에서 꺼냈을 때의 물의 온도, 상기 평형온도는 주위 환경과 평형에 도달하여 더 이상 변하지 않는 온도, 소요시간은 초기온에서부터 평형온도에 도달하기까지 걸린 시간이다. 상기 표 3에 기재된 바에 따르면, 비교예와 실시예에 담긴 물의 초기온도는 100℃로 같았으나 평형온도인 28℃에 도달하는 시간이 각각 비교예는 29분 10초, 실시예는 37분 40초로 상이하였다. 이에 따라, 실시예에 담긴 물의 열이 더 오랜시간 보존된 것을 알 수 있으며, 이를 통해 본 발명 자체가 열을 보유하고 있어 요리된 조리물의 온도가 더 오래 보존될 수 있음을 알 수 있다.
The comparative example of Table 3 is a plastic general container, the initial temperature is the temperature of the water when taken out of the microwave oven, the equilibrium temperature reaches the equilibrium with the surrounding environment, the temperature does not change any more, the required time is the equilibrium temperature from the initial temperature It's time to reach. As shown in Table 3, the initial temperature of the water contained in the comparative example and the example was the same as 100 ℃, but the time to reach the equilibrium temperature of 28 ℃ each 29 minutes 10 seconds, Example 37 minutes 40 seconds It was different. Accordingly, it can be seen that the heat of the water contained in the embodiment is preserved for a longer time, through which the present invention itself retains heat, so that the temperature of the cooked food can be preserved longer.

명세서에서 최적의 실시예들이 개시되었다. 여기서, 특정한 용어들이 사용되었으나, 이는 단지 본 발명을 설명하기 위한 목적에서 사용된 것이지 의미한정이나 특허청구범위에 기재된 본 발명의 범위를 제한하기 위하여 사용된 것은 아니다. 그러므로, 본 기술 분야의 통상의 지식을 가진자라면, 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다.
Optimal embodiments have been disclosed in the specification. Herein, specific terms have been used, but they are used only for the purpose of illustrating the present invention and are not intended to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (2)

성형된 진흙이 높은 온도에서 경화된 도자기에 있어서,
상기 진흙은 페라이트, 활석, 탄화규소, 산청점토, 알루미나를 포함하는 것을 특징으로 하는 전자레인지용 내열도자기.
In ceramics where molded mud is cured at high temperatures,
The mud is a heat-resistant ceramic for a microwave oven, characterized in that it contains ferrite, talc, silicon carbide, acid blue clay, alumina.
제1항에 있어서,
상기 진흙은 페라이트 13 내지 17중량%, 활석 13 내지 17중량%, 탄화규소 3 내지 7중량%, 산청점토 50 내지 60중량%, 알루미나 7 내지 12중량%를 포함하는 것을 특징으로 하는 전자레인지용 내열도자기.
The method of claim 1,
The mud is heat resistance for a microwave oven comprising 13 to 17% by weight of ferrite, 13 to 17% by weight of talc, 3 to 7% by weight of silicon carbide, 50 to 60% by weight of acid blue clay, and 7 to 12% by weight of alumina. ceramic ware.
KR1020100087989A 2010-09-08 2010-09-08 The heat-resisting ceramic ware for a microwave oven KR20120025840A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115594401A (en) * 2022-10-18 2023-01-13 江苏省陶瓷研究所有限公司(Cn) Wave-absorbing heating material, preparation method and ceramic vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115594401A (en) * 2022-10-18 2023-01-13 江苏省陶瓷研究所有限公司(Cn) Wave-absorbing heating material, preparation method and ceramic vessel

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