KR101884016B1 - Heat resistance ceramic kaolin manufacture method using induction - Google Patents

Heat resistance ceramic kaolin manufacture method using induction Download PDF

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KR101884016B1
KR101884016B1 KR1020160182966A KR20160182966A KR101884016B1 KR 101884016 B1 KR101884016 B1 KR 101884016B1 KR 1020160182966 A KR1020160182966 A KR 1020160182966A KR 20160182966 A KR20160182966 A KR 20160182966A KR 101884016 B1 KR101884016 B1 KR 101884016B1
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weight
magnet
induction
feldspar
glaze
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KR1020160182966A
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Korean (ko)
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KR20180078025A (en
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노혁래
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주식회사 지포트리
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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
    • C04B33/00—Clay-wares
    • C04B33/24—Manufacture of porcelain or white ware
    • A—HUMAN NECESSITIES
    • 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
    • A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • A—HUMAN NECESSITIES
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1305—Organic additives
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives
    • 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
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C04B33/34—Burning methods combined with glazing

Abstract

본 발명은 인덕션 사용이 가능한 내열자기 및 그 제조방법에 관한 것으로서, 조성물을 통한 소지 및 유약의 자화특성을 개선시킴과 함께 수분 흡수율을 감소시킴으로서 인덕션 렌지를 이용한 음식물의 가열 조리가 가능하도록 하기 위한 것이다.
이를 실현하기 위한 본 발명의 제조방법은, 엽장석 40~55중량%, 규석 10~20중량%, 활석 5~10중량%, 장석 10~20중량%, 알루미나 10~20중량%, 골회 5~15중량%의 소지 조성물을 40~45시간 동안 믹싱하는 재료믹싱단계와;(ST 1) 상기 믹싱된 재료를 자기 형태로 성형하는 성형단계와;(ST 2) 상기 성형된 자기를 900~1,100℃에서 초벌구이하는 초벌단계;(ST 3) 상기 초벌구이된 자기를 엽장석 45~55중량%, 장석 20~30중량%, 카올린 10~20중량%, 골회 10~20중량%의 조성을 이루는 유약을 시유하는 유약코팅단계;(ST 4) 상기 유약코팅이 이루어진 자기를 1,250~1,280℃에서 재벌구이하여 완전 자화시키는 재벌단계;(ST 5)를 포함하는 것을 특징으로 한다.The present invention relates to a heat-resistant magnet capable of using induction, and a method for manufacturing the same, which improves the magnetization characteristics of the base and the glaze through the composition and reduces the water absorption rate, thereby enabling heating cooking of the food using the induction cooking stove .
In order to achieve this, the production method of the present invention is characterized in that it comprises 40 to 55% by weight of folium, 10 to 20% by weight of silica, 5 to 10% by weight of talc, 10 to 20% by weight of feldspar, 10 to 20% by weight of alumina, (ST1) a molding step of molding the mixed material into a magnetic form; (ST2) a step of mixing the molded magnet at a temperature of 900 to 1,100 DEG C (ST 3), the gypsum having a composition of 45 to 55% by weight of foliar feldspar, 20 to 30% by weight of feldspar, 10 to 20% by weight of kaolin and 10 to 20% by weight of the pre- (ST4) a chaebol step (ST5) in which the magnet having the glaze coating is roughened at a temperature of 1,250 to 1,280 DEG C to complete magnetization;

Description

인덕션 사용이 가능한 내열자기 및 그 제조방법{HEAT RESISTANCE CERAMIC KAOLIN MANUFACTURE METHOD USING INDUCTION}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat resistant self-

본 발명은 내열자기에 관한 것으로서, 더욱 상세하게는 음식물 조리를 위한 인덕션 렌지에서 사용이 가능하도록 자화특성이 개선되어 진 내열자기 및 그 제조방법에 관한 것이다.The present invention relates to a heat-resistant magnet, and more particularly, to a heat-resistant magnet having improved magnetization characteristics for use in an induction cooking stove for cooking food and a method of manufacturing the same.

일반적으로 인덕션 렌지는 고전압의 인가시 그릴부에 자장(磁場)을 발생하는 코일이 내장되어 이 코일에 고전압이 인가될 때 자장을 형성하여 자장이 미치는 그릴부 위에 철(Fe) 성분을 함유하는 용기가 위치된 상태에서만 열원의 발생이 가능하도록 작동하여 가열이 유도된다.Generally, an induction range is a coil that generates a magnetic field in a grill portion when a high voltage is applied. When a high voltage is applied to the coil, a magnetic field is formed, and a container containing iron (Fe) So that the heat source can be generated and the heating is induced.

즉, 인덕션 렌지는 용기가 얹어지는 상판 저부에 설치된 코일에 전류를 흘려 보내면 이 코일에서 자력선이 발생하고, 이러한 자력선이 상판에 놓인 용기의 바닥을 통과하면서 용기의 재질에 포함된 저항성분 예컨대 철 성분에 의해 와류 전류가 생성되며, 이러한 와류전류는 용기 자체만을 발열시켜 렌지의 상판은 달구어지지 않고, 용기만 뜨거워져, 종래의 가열방식인 가스렌지, 버너 등의 가열 기구에 비해 높은 안전성과 우수한 경제성을 제공하며, 불꽃이 없으므로 화상의 위험이 없는 장점을 가지고 있다.That is, when an electric current is supplied to a coil installed at the bottom of the upper plate on which the container is placed, a magnetic line of force is generated in the coil. When the magnetic line passes through the bottom of the container placed on the upper plate, The swirling current is generated only by the container itself, so that the top plate of the cooking stove is not heated and only the container is heated. Thus, compared to conventional heating methods such as gas stoves and burners, And has the advantage that there is no risk of burning because there is no flame.

그러나 이러한 인덕션 기구는 반드시 그에 알맞는 재질로 제작된 용기만을 사용하여야 하는 문제가 있다.However, there is a problem in that such an induction mechanism must use only a container made of a suitable material.

예컨대, 스텐레스 18-10, 18-8, 18-0이나 철로 된 주물용기 혹은 철법랑 등은 인덕션 용기로써 사용이 가능하나, 유리· 동· 알루미늄·스텐레스 100% 등으로 제작된 용기의 경우에는 물리적 특성상 인덕션 렌지에서 발생 되는 자력선을 받아들이지 못하고 통과시키기 때문에 사용이 불가능한 문제가 있다.For example, stainless steel 18-10, 18-8, 18-0 or ferrous castings or iron enamel can be used as induction vessels, but for vessels made of glass, copper, aluminum, stainless steel, etc., There is a problem that it can not be used because the magnetic force lines generated in the induction cooking range can not be accepted.

따라서 근래에는 이러한 용기를 개량하여 인덕션 기구에 사용할 수 있도록 하고 있는데, 그 일예를 살펴보면 국내등록특허 제410897호와 같이 알루미늄 용기의 바닥 전체 혹은 그 일부에 자력성이 있는 마그네틱 메탈을 삽입하여 저항에 따른 와류 전류가 발생하도록 하는 용기가 개발되고 있다.Accordingly, in recent years, such containers have been modified to be used in induction devices. For example, as shown in Korean Patent No. 410897, a magnetic metal having a magnetic property is inserted in the entire bottom or a part of an aluminum container, A container for causing a swirling current to flow is being developed.

그러나 이러한 용기는 생산 과정이 복잡하고, 생산에 따른 막대한 설비가 필요하며, 사용 중 쉽게 찌그러지거나 더럽혀지는 문제가 있다.However, such a container has a complicated production process, requires a large amount of equipment according to production, and has a problem of being easily crushed or dirty during use.

본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, 생산과정을 단순화하여 생산 비용을 절감시킴과 함께 소지의 자화특성을 강화하여 인덕션 렌지에서 사용이 가능한 내열자기 제조방법을 제공하는데 목적이 있다.The present invention has been proposed in order to solve the problems in the prior art described above, and provides a method of manufacturing a heat resistant magnet that can be used in an induction cooking stove by reducing the production cost by simplifying the production process, There is a purpose.

상기 목적을 이루기 위한 본 발명의 내열자기 제조방법은, 엽장석 40~55중량%, 규석 10~20중량%, 활석 5~10중량%, 장석 10~20중량%, 알루미나 10~20중량%, 골회 5~15중량%의 소지 조성물을 40~45시간 동안 믹싱하는 재료믹싱단계와; 상기 믹싱된 재료를 자기 형태로 성형하는 성형단계와; 상기 성형된 자기를 900~1,100℃에서 초벌구이하는 초벌단계; 상기 초벌구이된 자기를 엽장석 50~60중량%, 장석 20~30중량%, 카올린 10~20중량%, 골회 10~20중량%의 조성을 이루는 유약을 시유하는 유약코팅단계; 상기 유약코팅이 이루어진 자기를 1,250~1,280℃에서 재벌구이하여 완전 자화시키는 재벌단계;를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a heat-resistant self-manufacturing method for producing a heat-resistant self-made magnet, comprising: 40 to 55 weight percent of foliar iron; 10 to 20 weight percent of silica, 10 to 20 weight percent of talc, 10 to 20 weight percent of feldspar, Mixing 5-15% by weight of the substrate composition for 40-45 hours; A molding step of molding the mixed material into a magnetic form; A preliminary step of baking the molded magnet at 900 to 1,100 ° C; The glaze coating step of subjecting the glaze to a composition comprising 50 to 60 wt% of foliar feldspar, 20 to 30 wt% of feldspar, 10 to 20 wt% of kaolin, and 10 to 20 wt% of a sprout; And a chaebol step of grinding the magnetic body coated with the glaze at a temperature of 1,250 to 1,280 DEG C to complete magnetization.

또한, 상기 재벌단계 후에는 자화되어진 내열자기의 바닥면에 액상의 나노은을 박막으로 코팅시키는 나노은 코팅단계(ST 6)가 추가로 실시되어짐을 특징으로 한다.Further, after the chaebol step, a nano silver coating step (ST 6) is further performed in which liquid nano silver is coated on the bottom surface of the magnetized heat resistant magnet with a thin film.

이러한 본 발명의 내열자기는, 조성물을 통한 소지 및 유약의 자화특성이 개선되어짐과 함께 수분 흡수율을 0.1% 이하로 감소시킴으로써 인덕션 렌지를 이용한 음식물의 가열 조리가 가능한 효과를 나타낸다.The heat-resistant magnet of the present invention improves the magnetization characteristics of the substrate and the glaze through the composition, and reduces the water absorption rate to 0.1% or less, thereby exhibiting an effect of heating and cooking food using the induction cooking stove.

특히, 바닥면에 자성인 나노은이 코팅 형성됨으로써 보다 효과적인 음식물 조리효율을 나타내게 된다.Particularly, a coating of nano silver, which is magnetic, is formed on the bottom surface, thereby exhibiting a more effective food cooking efficiency.

도 1은 본 발명의 일 실시 예에 따른 인덕션 내열자기 제조과정 순서도.
도 2는 본 발명의 일 실시 예에 따른 내열자기 외관도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a process for manufacturing induction heat resistant magnets according to an embodiment of the present invention; FIG.
2 is a heat-resistant magnetic external appearance view according to an embodiment of the present invention;

이하, 본 발명의 구체적인 실시 예를 첨부 도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

먼저, 본 발명의 일 실시 예에 따른 인덕션 사용이 가능한 내열자기의 제조과정을 도 1의 순서도를 참조하여 살펴보면 다음과 같다.First, a manufacturing process of a heat-resistant magnet capable of induction use according to an embodiment of the present invention will be described with reference to the flowchart of FIG.

먼저, 재료믹싱단계(ST 1)에서는 소지의 재료가 되는 소지 조성물을 혼합, 믹싱하게 되는데, 이때에는 엽장석 40~55중량%, 규석 10~20중량%, 활석 5~10중량%, 장석 5~20중량%, 알루미나 5~20중량%, 골회 5~15중량%의 소지 조성물을 혼합 후 40~45시간 동안 믹싱하게 된다.First, in the material mixing step ST 1, the base composition to be the base material is mixed and mixed. At this time, 40 to 55 wt% of foliar, 10 to 20 wt% of the silica, 5 to 10 wt% of the talc, To 20% by weight of alumina, 5 to 20% by weight of alumina and 5 to 15% by weight of bone cake are mixed and mixed for 40 to 45 hours.

이후, 믹싱된 재료를 뚝배기와 같은 음식물 조리용 내열용기 형태로 성형하는 성형단계(ST 2) 및 성형 된 자기를 건조 후 900~1,100℃에서 초벌구이하는 초벌단계(ST 3)를 각각 수행하게 된다.Thereafter, the mixed material is subjected to a molding step (ST 2) for forming a heat-resistant container for food cooking such as a pot, and a preliminary step (ST 3) for drying the molded magnet at 900 to 1,100 ° C.

그리고 초벌구이가 이루어진 자기는 유약코팅단계(ST 4)에서 엽장석 45~55중량%, 장석 20~30중량%, 카올린 10~20중량%, 골회 10~20중량%의 조성을 이루는 유약을 시유하게 된다.In the glaze coating step ST 4, the glaze having the composition of 45 to 55 wt.% Of foliate, 20 to 30 wt.% Of feldspar, 10 to 20 wt.% Of kaolin and 10 to 20 wt. .

이와 같이 외표면에 유약코팅이 이루어진 자기는 재벌단계(ST 5)에서 1,250~1,280℃에서 재벌구이하여 완전 자화(소결)시킴으로써 내열자기가 완성되어지게 된다.The magnet having the outer surface coated with the glaze is pyrolyzed at 1,250 ~ 1,280 ° C in the chaebol step (ST 5) and is completely magnetized (sintered) to complete the heat-resistant magnetism.

한편, 재벌단계(ST 5) 후에는 자화가 이루어진 내열자기의 바닥면에 액상의 나노은을 박막으로 코팅시키는 나노은 코팅단계(ST 6)가 추가로 실시됨이 바람직하다.Meanwhile, after the chaotic step ST 5, it is preferable to further perform a nano-silver coating step (ST 6) in which liquid nano-silver is coated with a thin film on the bottom surface of the magnet with heat resistance.

본 발명에서 사용되는 재료 중 알루미나 및 골회(BoneAsh)는 강도, 투광성 및 열충격성을 강화시키며, 엽장석은 상온에 잘 견디고 냉온에도 잘 견디는 특성을 나타내며, 규석은 내구성을 향상시키고, 활석은 열충격을 강화하며, 카올린은 백토성분으로서 가소성 및 재료의 점력을 향상시키는 특성을 갖게 된다.Among the materials used in the present invention, alumina and bone ash strengthen strength, light transmittance and thermal shock resistance. Leaf stone is resistant to room temperature and can withstand cold conditions. Silicate improves durability and talc strengthens thermal shock And kaolin is a clay component and has the property of improving the plasticity and the pointing of the material.

한편, 이와 같은 과정을 통해 제조되어 진 본 발명의 내열자기(10)는 도 2에서와 같이 음식물의 조리를 위한 용기형태를 이루는 것으로서, 소지 조성물에 알루미나 및 골회를 첨가 후 고온 소결(1,250~1,280℃)과정을 거침으로서 강도 및 투광성이 증가 되며 수분 흡수율이 0.1% 이하를 이루어 위생적이면서 중금속 용출현상이 나타나지 않게 된다.The heat-resistant magnet 10 of the present invention manufactured through such a process is a container for cooking foods as shown in FIG. 2. The alumina and the ferrite are added to the substrate composition, and the high-temperature sintering (1,250 to 1,280 ° C), the strength and translucency are increased, and the water absorption rate is 0.1% or less, which is hygienic and the heavy metal elution phenomenon does not appear.

특히, 본 발명의 내열자기(10)는 바닥면에 자성 성분인 나노은이 코팅되어져 있기 때문에 음식물의 가열 조리를 위한 인덕션 레인지 겸용으로도 사용이 가능하게 된다.In particular, since the heat-resistant magnet 10 of the present invention is coated with nano-silver, which is a magnetic component, on the bottom surface, it can be used also as an induction range for cooking food.

한편, 본 발명의 응용된 다른 실시 예로, 재료믹싱단계(ST 1)에서는 소지의 내구성 강화를 위한 굴패각 미분말 1~5중량%, 수분 흡수성을 저하시키기 위한 붕소 1~5중량%, 붕소의 뭉침현상 방지를 위한 코랄칼슘 1~3중량%, 내구성 강화를 위한 말뼈분말 1~3중량%, 내화성 강화를 위한 일라이트(illite) 1~3중량%, 일라이트의 활성화를 위한 수용성 에멀젼수지 0.1~1중량%, 원적외선을 방출하는 옥분말 0.1~1중량%가 추가로 첨가되고, 유약코팅단계(ST 4)에서는 유약이 균일한 두께로 코팅되어질 수 있도록 대두레시틴 및 글루콘산아연이 각각 1~5중량%로 첨가되어질 수 있게 된다.Meanwhile, in another embodiment to which the present invention is applied, in the material mixing step (ST 1), 1 to 5 wt% oyster shell fine powder for enhancing durability of the substrate, 1 to 5 wt% boron for lowering moisture absorption, 1 to 3% by weight of coral calcium for prevention, 1 to 3% by weight of horse bone powder for enhancing durability, 1 to 3% by weight of illite for enhancing fire resistance, 0.1 to 1 of water- 0.1 to 1 wt% of jade powder emitting far infrared rays is further added. In the glaze coating step (ST 4), soybean lecithin and zinc gluconate are added to the mixture in an amount of 1 to 5 wt% %. ≪ / RTI >

이와 같이 소지에 붕소 및 말뼈 분말이 첨가되어짐으로써 내열자기의 강도를 더욱 강화할 수 있게 됨과 함께, 붕소와 코랄칼슘이 첨가되어짐으로써 소지의 수분 흡수성을 최소화할 수 있게 된다.The addition of boron and horse bone powder to the substrate enhances the strength of the heat-resistant magnet, and addition of boron and coral calcium makes it possible to minimize the water absorption of the substrate.

특히, 코랄칼슘은 일반 칼슘에 비해 무기물성분이 다량 함유되어 있기 때문에 붕소분말의 뭉침 현상을 방지할 수 있는 특성을 나타낸다.In particular, coral calcium exhibits a property of preventing the aggregation of boron powder because it contains a large amount of inorganic components compared to ordinary calcium.

또한, 점토 광물인 일라이트가 혼합됨으로써 자기의 내화성이 강화됨과 함께 수용성 에멀젼수지로 인해 일라이트 분말이 활성화되어 질 수 있는 이점을 나타내게 된다.In addition, by mixing the clay mineral, Illite, the self-refractory property is enhanced and the water-soluble emulsion resin has an advantage that the Illite powder can be activated.

이와 함께, 유약코팅단계(ST 4)에서는 유약에 대두레시틴 및 글루콘산아연이 추가로 첨가되어지게 되면 코팅층의 광택 및 윤활성을 향상시킴과 함께, 코팅층의 균열 발생을 방지하는 이점을 나타내게 된다.In addition, in the glaze coating step (ST 4), when soybean lecithin and zinc gluconate are added to the glaze, the gloss and lubricity of the coating layer are improved and the coating layer is prevented from cracking.

그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 내열자기 제조과정이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. Although specific embodiments of the present invention have been described and illustrated above, it is obvious that the heat resistant magnetic manufacturing process of the present invention can be variously modified by those skilled in the art.

예를 들면, 소지의 혼합 재료에 필요에 따라 기능성 향상을 위한 성분을 추가로 혼합시킬 수도 있게 된다.For example, it is possible to further mix components for enhancing the functionality of the base mixed material as necessary.

따라서, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다. Therefore, it should be understood that such modified embodiments should not be individually understood from the technical spirit and scope of the present invention, and such modified embodiments should be included in the appended claims of the present invention.

10 : 내열자기10: Heat resistant self

Claims (5)

엽장석 40~55중량%, 규석 10~20중량%, 활석 5~10중량%, 장석 5~20중량%, 알루미나 5~20중량%, 골회 5~15중량%, 굴패각 미분말 1~5중량%, 붕소 1~5중량%, 코랄칼슘 1~3중량%, 말뼈분말 1~3중량%, 일라이트(illite) 1~3중량%, 활성화를 위한 수용성 에멀젼수지 0.1~1중량%, 옥분말 0.1~1중량%의 혼합 조성을 이루는 소지 조성물을 40~45시간 동안 믹싱하는 재료믹싱단계와;(ST 1)
상기 믹싱된 재료를 자기 형태로 성형하는 성형단계와;(ST 2)
상기 성형된 자기를 900~1,100℃에서 초벌구이하는 초벌단계;(ST 3)
상기 초벌구이된 자기를 엽장석 45~55중량%, 장석 20~30중량%, 카올린 10~20중량%, 골회 10~20중량%의 조성을 이루는 유약을 시유하는 유약코팅단계;(ST 4)
상기 유약코팅이 이루어진 자기를 1,250~1,280℃에서 재벌구이하여 완전 자화시키는 재벌단계;(ST 5)
를 포함하는 것을 특징으로 하는 인덕션 사용이 가능한 내열자기 제조방법.Wherein the alumina powder comprises 40 to 55% by weight of leucite, 10 to 20% by weight of talc, 5 to 10% by weight of talc, 5 to 20% by weight of feldspar, 5 to 20% by weight of alumina, 5 to 15% 1 to 5 wt% of boron, 1 to 3 wt% of coral calcium, 1 to 3 wt% of horse bone powder, 1 to 3 wt% of illite, 0.1 to 1 wt% of water-soluble emulsion resin for activation, 0.1 To 1 wt% of a base composition; mixing the base composition for 40 to 45 hours; (ST 1)
A molding step of molding the mixed material into a magnetic shape; (ST 2)
A preliminary step of grinding the molded magnet at 900 to 1,100 ° C; (ST 3)
(ST 4) a glaze coating step of applying the glaze forming the pre-fired magnet to a composition of 45 to 55 wt% of foliar friable, 20 to 30 wt% of feldspar, 10 to 20 wt% of kaolin, and 10 to 20 wt%
A chaebol step of grinding the magnet having the glaze coated thereon at a temperature of 1,250 ~ 1,280 ° C to complete magnetization; (ST 5)
The method for manufacturing a heat resistant magnet according to claim 1, 삭제delete 삭제delete 삭제delete 청구항 1의 방법을 통해 제조된 내열자기.
A heat-resistant magnet produced by the method of claim 1.
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KR200391443Y1 (en) * 2005-04-30 2005-08-04 박창림 Silver heat resistance ceramic kaolin a plate
KR101304445B1 (en) * 2013-05-06 2013-09-05 (주)젠한국 Ih sensing for heat-resistance direct fired ceramic and manufacturing method thereof
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KR200391443Y1 (en) * 2005-04-30 2005-08-04 박창림 Silver heat resistance ceramic kaolin a plate
KR101317922B1 (en) * 2013-02-06 2013-10-16 (주)에릭스 Ceramic ware for heating and radiating of infra-red ray and preparation method thereof
KR101304445B1 (en) * 2013-05-06 2013-09-05 (주)젠한국 Ih sensing for heat-resistance direct fired ceramic and manufacturing method thereof

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