KR100846146B1 - High-strengthened heat-resistant colorful ceramic ware and glaze compositions - Google Patents

High-strengthened heat-resistant colorful ceramic ware and glaze compositions Download PDF

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KR100846146B1
KR100846146B1 KR1020060111106A KR20060111106A KR100846146B1 KR 100846146 B1 KR100846146 B1 KR 100846146B1 KR 1020060111106 A KR1020060111106 A KR 1020060111106A KR 20060111106 A KR20060111106 A KR 20060111106A KR 100846146 B1 KR100846146 B1 KR 100846146B1
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KR20080042532A (en
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조한봉
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(주)상명바이오세라믹스
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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
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/041—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers for moulded articles undergoing a thermal treatment at high temperatures, such as burning, after coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
    • 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

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
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  • Organic Chemistry (AREA)
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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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  • Compositions Of Oxide Ceramics (AREA)

Abstract

본 발명은 다채색 고강도 내열 세라믹을 위한 소지 조성물로서, 상기 소지 조성물은, 상기 소지 조성물의 전체 중량을 기준으로, 엽장석 50~70중량%, 활석 5~10중량% , 코디어라이트 3~5중량% 탄산바륨3~5중량% 및 점토+백토 10~39중량%로 이루어지는 다채색 고강도 내열 세라믹을 위한 소지 조성물을 제공한다. 또한 본 발명은 본원 발명에 따른 소지 조성물로 제품을 성형한 후, 1000±50℃에서 초벌로 구어낸 후에 시유되는 다채색 고강도 내열 세라믹을 위한 유약 조성물로서, 상기 유약 조성물은, 상기 유약 조성물의 전체 중량을 기준으로, 엽장석 40~60중량%, 활석5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량% 및 세레사이트20~30중량%로 이루어지는 다채색 고강도 내열 세라믹을 위한 유약 조성물을 제공한다.The present invention is a holding composition for a multi-color high strength heat-resistant ceramic, the holding composition, 50 to 70% by weight of feldspar, talc 5 to 10% by weight, cordierite 3 to 5 based on the total weight of the holding composition Provided is a composition for multicolor high strength heat-resistant ceramics consisting of 3-5% by weight barium carbonate and 10-39% by weight clay + clay. In another aspect, the present invention is a glaze composition for a multi-color high-strength heat-resistant ceramic that is oiled after molding the product from the base material composition according to the present invention, and then baked at the first 1000 ± 50 ℃, the glaze composition is the whole of the glaze composition 40 to 60% by weight of coarse stone, 5 to 15% by weight of talc, 3 to 5% by weight of barium carbonate, 3 to 5% by weight of lithium carbonate, 5 to 10% by weight of zirconium and 20 to 30% by weight of ceresite It provides a glaze composition for a multicolor high strength heat-resistant ceramic consisting of.

다채색, 내열, 세라믹 Colorful, heat resistant, ceramic

Description

다채색 고강도 내열 세라믹 소지 조성물 및 이에 시유되는 유약 조성물{High-strengthened heat-resistant colorful ceramic ware and glaze compositions}High-strengthened heat-resistant colorful ceramic ware and glaze compositions

도 1은 유약처리 없이 소성된 본 발명에 따른 소지조성물의 표면을 나타낸다. 1 shows the surface of the body composition according to the present invention fired without glazing.

도 2는 본 발명에 따른 유약조성물로 처리되어 소성된 본 발명에 따른 소지조성물의 표면을 나타낸다.Figure 2 shows the surface of the body composition according to the present invention fired by treatment with a glaze composition according to the present invention.

본 발명은 다채색 고강도 내열 세라믹 소지 및 이에 시유되는 유약 조성물에 관한 것으로, 도자기의 본체를 이루는 소지(素地)가 자화(磁化)되어 도자기흡수율이 4%이내의 고강도를 갖기 때문에 일반도자기처럼 주방 식기로 사용하는데 전혀 불편함이 없을 뿐만 아니라 도자기에 다양한 색상을 부여하는 것이 가능하여 수요자의 다양한 미적 요구를 충족시킬 수 있다.The present invention relates to a multi-color high-strength heat-resistant ceramic body and the glaze composition oiled therein, and because the body forming the body of the porcelain is magnetized to have a high strength of the porcelain absorption rate of less than 4% kitchen utensils like general ceramics Not only is it inconvenient to use, but it is also possible to give various colors to ceramics, which can meet the various aesthetic needs of consumers.

일반적인 도기재 가열조리 용기나 구이판은 내열성이 높고, 가열과 냉각에 따른 열팽창성 및 열수축성이 적어야만 직화나 전자레인지등에 의한 가열 조리시 균열이 가지 않기 때문에 내열성 소지를 사용하고 있다.In general, the ceramic cooking vessel or roasting plate has high heat resistance and low thermal expansion and thermal shrinkage due to heating and cooling, so that it does not crack when cooking by heating or microwave oven.

종래의 내열도자기는 고령토나 점토, 산청토, 엽장석(petalite)등의 무기물질을 혼합 반죽한 소지를 가마에서 1150℃도 1300℃범위의 고열로 소성하여 일반적으로 제조된다.Conventional heat-resistant ceramics are generally manufactured by firing a mixture of inorganic materials such as kaolin, clay, acid blue soil, petalite, etc. in a kiln at a high temperature of 1150 ° C to 1300 ° C.

상기와 같은 내열도자기를 초벌구이한 후, 0.5% 노르말 농도값을 갖는 게르마늄 졸 90%와 염화철 약2%, 염화니켈 약6%, 염화코발트 약 1%, 염화동 약1%를 혼합 교반한 고농축 복합금속용질액에 담궜다 꺼내서, 약 1240℃로 재벌구이 하는 방식이나, 초벌로 구어낸 내열자기에 엽장석57-77중량%, 활석 2내지 8중량%, 칼리장석과 석회석의 혼합물 10중량%, 알루미나와 규석의 혼합물 3중량% 등을 가미한 유약을 도포한후 재벌 구이하는 방식이 있었다. After highly roasting the above-mentioned ceramics, the highly concentrated composite metal was mixed with a mixture of 90% germanium sol having a concentration of 0.5% normal, about 2% iron chloride, about 6% nickel chloride, about 1% cobalt chloride, and about 1% copper chloride. Soaked in solute solution, roasted at about 1240 ℃, or bakelite 57-77% by weight, talcum 2 to 8% by weight, 10 to 10% by weight of a mixture of calistone and limestone After applying a glaze containing 3% by weight of a mixture of silica, there was a method of roasting chaebol.

위와 같은 방식에 있어서, 상기와 같은 유약을 발라 건조시켜 재벌구이 하기전에 유약에서 열 현상(crazing)이 발생하는 경향이 있어서, 완성된 내열자기의 표면균열로 인해 조리시 음식물이 도자기 표면에 흔적이 남고 세척시 세제의 유입으로 끓을 때 거품이 발생하는 문제점이 있을 뿐만 아니라 강도가 약해 필요 강도를 확보하기 위하여 도자기의 두께를 두껍게 만들어야 하기 때문에 소지 낭비가 심하며 이로 인한 도자기의 중량 증가로 도자기의 운반용이성 등이 저하되는 문제점이 있다. 그리고 종래에는 기본소지의 색상이 백색이 아니어서 다채로운 색상의 유약을 사용하지 못하고 고정된 흑색/ 그린색/ 초콜릿색의 유약만 시유가 가능하여 급변하는 주방환경 및 수요자의 다양한 미적 요구를 충족시키지 못하는 문제점이 있다.In the above manner, the glazing tends to occur in the glaze before the glaze is dried by applying the glaze as described above, and the food cracks on the surface of the porcelain during cooking due to the surface crack of the completed heat-resistant magnetic. There is not only a problem of foaming when boiling due to the inflow of detergent during washing, but also a weak strength because the thickness of the porcelain must be made thick in order to secure the required strength. There is a problem that the back is lowered. In addition, conventionally, since the base material is not white, it is not possible to use colorful glazes and only fixed black / green / chocolate glazes can be used to satisfy the rapidly changing kitchen environment and various aesthetic needs of consumers. There is a problem.

본 발명은 상기와 같은 종래기술의 문제점들을 해결하기 위하여 안출된 것으로, 본 발명은 내열자기의 흡수율을 극히 낮추고 조리시 내열자기의 유약표면균열을 방지할 뿐만 아니라, 내열자기의 강도를 높임으로써 도자기의 두께의 박화로 인한 도자기의 경량화를 실현할 수 있고, 다양한 색상으로 채색 가능한 다채색 고강도 내열 세라믹 소지 조성물 및 이에 시유되는 유약 조성물을 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the prior art as described above, the present invention is extremely low absorption rate of the heat-resistant magnetic and prevent the glazing surface cracking of the heat-resistant magnetic during cooking, as well as by increasing the strength of the heat-resistant magnetic It is an object of the present invention to provide a multi-color high-strength heat-resistant ceramic body composition and a glaze composition oiled thereto, which can realize the weight reduction of ceramics due to the thinning of the thickness.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 일 구성은, 다채색 고강도 내열 세라믹을 위한 소지 조성물로서, 상기 소지 조성물은, 상기 소지 조성물의 전체 중량을 기준으로, 엽장석 50~70중량%, 활석 5~10중량% , 코디어라이트 3~5중량% 탄산바륨3~5중량% 및 점토+백토 10~39중량%로 이루어진다. 본 발명에 따른 다른 구성은, 본 발명에 따른 소지 조성물로 제품을 성형한 후, 1000±50℃에서 초벌로 구어낸 후에 시유되는 다채색 고강도 내열 세라믹을 위한 유약 조성물로서, 상기 유약 조성물은, 상기 유약 조성물의 전체 중량을 기준으로, 엽장석 40~60중량%, 활석5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량% 및 세레사이트20~30중량%로 이루어진다. 바람직하게는 색채 안료가 더 포함될 수 있다.One configuration according to the present invention for achieving the above object, as a holding composition for a multi-color high-strength heat-resistant ceramic, the holding composition, 50 to 70% by weight of feldspar, based on the total weight of the holding composition, It consists of 5-10% by weight of talc, 3-5% by weight of cordierite 3-5% by weight of barium carbonate and 10-39% by weight of clay + clay. Another constitution according to the present invention is a glaze composition for a multicolor high strength heat-resistant ceramic which is oiled after molding a product from the base material composition according to the present invention, and after being baked at 1000 ± 50 ° C., wherein the glaze composition is Based on the total weight of the glaze composition, 40 to 60% by weight of feldspar, 5 to 15% by weight of talc, 3 to 5% by weight of barium carbonate, 3 to 5% by weight of lithium carbonate, 5 to 10% by weight of zirconium and ceresite 20 It consists of -30 weight%. Preferably, a color pigment may be further included.

여기서, 상기 색채 안료는 Red 계열, Orange 계열 및 Blue 계열 중 어느 하나 이상으로 이루어 질 수 있는데, 상기 엽장석의 성분 범위 내에서 색채 안료의 함량을 조정하여 흰색 및 다른 여러 가지 색을 낼 수 있다. Here, the color pigment may be made of any one or more of red, orange, and blue series, by adjusting the content of the color pigments within the constituent range of the feldspar may produce a variety of white and other colors.

예 1) 흰색을 내고자 하는 경우, 상기 유약조성물의 성분 조성을, 엽장석 40~60중량%, 활석5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량%, 세레사이트20~30중량%의 기본유약에 색채 안료는 첨가되지 않는다.Example 1) In the case of white color, the composition of the glaze composition is 40 to 60% by weight, talc 5 to 15%, barium carbonate 3 to 5%, lithium carbonate 3 to 5%, zirconium 5 to No color pigment is added to the base glaze of 10% by weight and 20% by weight of ceresite.

예2) 적색을 내고자 하는 경우, 상기 유약 조성물의 성분 조성을, 엽장석 40~60중량%, 활석5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량%, 세레사이트20~30중량%으로 하고, 색채 안료로는 Red 계열을 첨가 한다.Example 2) If you want to give a red color, the composition of the glaze composition is composed of 40 to 60% by weight of feldspar, 5 to 15% by weight of talc, 3 to 5% by weight of barium carbonate, 3 to 5% by weight of lithium carbonate, 5 to zirconium 10% by weight, ceresite 20 ~ 30% by weight, add red as a color pigment.

본 발명은 종래의 내열소지에서는 볼 수 없었던 다양한 색의 안료를 시유할 수 있도록 백색 소지를 개발하므로써 기존의 유색(Yellow)계열의 내열소지에서는 시유할 수 없었던 Red, Orange Blue 계열 등 다양한 계열의 안료를 시유할 수 있게 되었다. The present invention is to develop a white base so that the pigment of a variety of colors that were not seen in the conventional heat-resistant material by the pigments of various series, such as the red, orange blue series, which could not be applied in the heat-resistant body of the conventional colored series It is possible to see.

실시예Example

실시예 1 내지 20은 본 발명에 따른 소지조성물에 관한 것으로, 본 발명에 따른 백색 고강도 내열세라믹 소지조성물의 최적 조성비는 엽장석 50~70중량%, 활석 5~10중량% , 코디어라이트 3~5중량%, 탄산바륨3~5중량%, 및 점토+백토 10~40중량%로 이루어진다. 표 1은 소지 조성물의 조성 변화에 따른 소지 조성물의 성형성, 소결성, 내열성 및 강도 실험 결과를 나타내는데, 본 발명에 따른 고강도 내열세라믹 소지조성물의 최적조성비인, 엽장석 50~70중량%, 활석 5~10중량% , 코디어라이트 3~5중량%, 탄산바륨3~5중량%, 점토+백토 10~40중량%의 소지원료혼합물에 의한 제품이 성형성, 소결성, 내열성 및 강도 항목 모두에서 우수한 물성을 나타냄을 알 수 있다. 표 1의 실험결과에 대한 판정기준은 표 2에 나타내었다. Examples 1 to 20 relate to the base material composition according to the present invention, the optimum composition ratio of the white high strength heat-resistant ceramic body composition according to the present invention is 50 to 70% by weight of feldspar, 5 to 10% by weight of talc, cordierite 3 ~ 5 wt%, barium carbonate 3-5 wt%, and clay + clay 10-40 wt%. Table 1 shows the results of moldability, sintering, heat resistance and strength test results of the composition according to the composition of the composition, the optimum composition ratio of the high-strength heat-resistant ceramic body composition according to the invention, 50 to 70% by weight, talc 5 ~ 10% by weight, cordierite 3 ~ 5% by weight, barium carbonate 3 ~ 5% by weight, support material mixture of clay + clay 10 ~ 40% by weight, the product is excellent in both moldability, sinterability, heat resistance and strength It can be seen that the physical properties. The criteria for the test results in Table 1 are shown in Table 2.

소지조성물의 조성 변화에 따른 소지 조성물의 성형성, 소결성, 내열성 및 강도실험 결과Molding, Sintering, Heat Resistance, and Strength Test Results of Body Compositions According to Composition Changes 엽장석Feldspar 활석talc 코디어 라이트Cordierite 탄산바륨Barium carbonate 점토+백토Clay + clay 실험 결과Experiment result 성형성Formability 소결성Sinterability 내열성Heat resistance 강도burglar 비교예1Comparative Example 1 4545 77 44 44 4040 양amount 양amount 불fire 양amount 비교예2Comparative Example 2 7575 77 44 44 1010 불fire 불fire 양amount 불fire 비교예3Comparative Example 3 6060 44 44 44 2828 양amount 불fire 양amount 불fire 비교예4Comparative Example 4 6060 1212 44 44 2020 불fire 양amount 불fire 양amount 비교예5Comparative Example 5 6060 77 22 44 2727 양amount 불fire 양amount 불fire 비교예6Comparative Example 6 6060 77 66 44 2323 불fire 양amount 불fire 양amount 비교예7Comparative Example 7 6060 77 44 22 2727 양amount 불fire 양amount 불fire 비교예8Comparative Example 8 6060 77 44 77 2222 불fire 양amount 불fire 양amount 비교예9Comparative Example 9 7171 1010 55 55 99 불fire 불fire 양amount 불fire 비교예10Comparative Example 10 4848 55 33 33 4141 양amount 양amount 불fire 양amount 실시예1Example 1 5151 88 55 44 3232 양amount 양amount 양amount 양amount 실시예2Example 2 5555 99 44 33 2929 양amount 양amount 양amount 양amount 실시예3Example 3 5656 66 33 55 3030 양amount 양amount 양amount 양amount 실시예4Example 4 5353 88 55 55 2929 양amount 양amount 양amount 양amount 실시예5Example 5 5151 77 33 33 3636 양amount 양amount 양amount 양amount 실시예6Example 6 6868 66 33 33 2020 양amount 양amount 양amount 양amount 실시예7Example 7 6262 77 44 44 2323 양amount 양amount 양amount 양amount 실시예8Example 8 6666 55 44 33 2222 양amount 양amount 양amount 양amount 실시예9Example 9 5656 88 55 55 2626 양amount 양amount 양amount 양amount 실시예10Example 10 6666 66 44 44 2020 양amount 양amount 양amount 양amount 실시예11Example 11 5252 99 33 44 3232 양amount 양amount 양amount 양amount 실시예12Example 12 5050 55 44 44 3737 양amount 양amount 양amount 양amount 실시예13Example 13 6161 55 33 55 2626 양amount 양amount 양amount 양amount 실시예14Example 14 5454 88 33 33 3232 양amount 양amount 양amount 양amount 실시예15Example 15 5050 55 33 33 3939 양amount 양amount 양amount 양amount 실시예16Example 16 6868 66 33 55 1818 양amount 양amount 양amount 양amount 실시예17Example 17 7070 99 55 44 1212 양amount 양amount 양amount 양amount 실시예18Example 18 6565 55 33 33 2424 양amount 양amount 양amount 양amount 실시예19Example 19 6767 66 44 55 1818 양amount 양amount 양amount 양amount 실시예20Example 20 6262 88 55 33 2222 양amount 양amount 양amount 양amount

* ‘양’: 양호를 나타냄, ‘불’: 불량을 나타냄.* 'Yang': indicates good, 'Fire': indicates bad.

표 1 실험결과의 요구물성별 판정 기준Table 1 Judgment criteria by required property 불 량 Defective 양 호Good 성형성Formability 성형수율 90%미만Molding yield less than 90% 성형수율 90%이상Molding yield over 90% 소결성Sinterability 흡수율 4% 초과Absorption more than 4% 흡수율 4% 이하Absorption rate less than 4% 내열성Heat resistance 급열 급냉 450℃ 크랙Quench quench 450 ℃ crack 급열 급냉 450℃안전Quenching quenching 450 ℃ 강 도burglar 600Kg/cm2 미만Less than 600Kg / cm 2 600Kg/cm2 이상600Kg / cm 2 or more

엽장석의 리튬 함량은 각 제품별로 다르나 실험용 엽장석은 리튬 함량 4.3%의 제품으로 실험했다. 이때 엽장석은 소지의 열팽창률을 낮추어 소지의 내열성을 증대 시키며 50% 보다 적을 때는 내열성이 있는 세라믹으로 사용 할 수 없게 된다. 그리고 엽장석이 70% 보다 많을 때 유약과 부합상태가 불량하고 백토와 점토의양이 감소하여 성형능력이 떨어진다. Lithium content of foliar was different for each product, but experimental feldspar was tested with a product of 4.3% lithium. At this time, feldspar increases the heat resistance of the body by lowering the coefficient of thermal expansion of the body. When it is less than 50%, it cannot be used as a ceramic having heat resistance. And when the feldspar is more than 70%, the state of poor conformity with the glaze is reduced, and the amount of clay and clay is reduced, so that the molding ability is reduced.

활석은 소지의 소결성을 증대시켜 안정된 소지가 되도록 하며 투광성을 증대 시켜 주는 역할을 한다. 5% 보다 적을 때는 소결이 잘 되지 않아 자기질의 내열자기를 만들 수 없다. 그리고 10% 보다 많을 때는 소지의 내화도가 낮아지고 내열성이 낮아짐.Talc increases the sinterability of the body to make it a stable body and increases the light transmittance. When it is less than 5%, the sintering is not good and cannot produce magnetic heat-resistant magnetic. And when more than 10%, the fire resistance of the body is lowered and the heat resistance is lowered.

코어디어라이트는 소지의 강도를 증대 시키면서 소결성을 좋게 해주는 성질을 지니고 있다. 3% 보다 적을 때는 강도에 미치는 영향이 적으며 소결성도 떨어진다. 그리고 5% 보다 많을 때는 소지의 색상에 영향을 주게 된다.Core Deerite has the property of improving sinterability while increasing the strength of the body. When less than 3%, the effect on strength is small and the sinterability is also poor. And more than 5% will affect your color.

탄산바륨은 소결성을 좋게 하며 소지의 화도를 낮추어 적정 온도에서 자기화를 할 수 있게 한다. 자기화를 통해 흡수율을 없애주어 세라믹 조성물의 내구성을 좋게 하며 조성물을 사용할 때 불순물이 세라믹 속으로 침투하지 않게 한다. 3% 보다 적을 때는 소지의 화도가 올라가며 조성물을 완전 자화시키지 못한다. 그리고 5% 보다 많을 때는 소지의 내화도가 낮아지고 내열성이 떨어진다.Barium carbonate improves the sinterability and lowers the degree of ignition of the body so that it can be magnetized at an appropriate temperature. The magnetization eliminates the absorption rate, which improves the durability of the ceramic composition and prevents impurities from penetrating into the ceramic when the composition is used. When it is less than 3%, the degree of possession increases and the composition is not fully magnetized. And when it is more than 5%, the fire resistance of the body becomes low and heat resistance is inferior.

점토와 백토는 내열자기의 성형성을 좋게 하며 기본 몸체를 이룰 수 있게 한다. 소성 후 백색도에 영향을 미치므로 백색도가 좋은 것을 사용한다. 10% 보다 적게 되면 내열 세라믹으로 성형하기 힘들다. 또한 점토의 양을 증가시키면 생산 중 성형공정에서 좋은 결과를 기대할 수는 있으나, 제품의 내열성이 떨어져 제품의 질적 저하를 가져온다. 그리고 40% 보다 많을 때 소지의 소결성 및 내열성이 낮아진다.Clay and clay are good formability of heat-resistant magnet and make the basic body. Use good whiteness because it affects whiteness after firing. If it is less than 10%, it is difficult to form a heat-resistant ceramic. In addition, if the amount of clay is increased, good results can be expected in the molding process during production, but the heat resistance of the product is lowered, which leads to a deterioration of the quality of the product. And when more than 40% the base material sintering and heat resistance is lowered.

실시예 21 내지 40은 본 발명에 따른 유약조성물에 관한 것으로, 상기 실시예 21 내지 40에 따른 소지로 생산되는 내열자기에 적용되는 본 발명에 따른 유약조성물의 최적 조성비는 엽장석 40~60중량%, 활석 5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량% 및 세레사이트 20~30중량%로 이루어진다. 표 2는 유약 조성물의 조성 변화에 따른 유약 조성물의 특성 실험 결과를 나타내는데, 본 발명에 따른 유약 조성물의 최적 조성비인, 엽장석 40~60중량%, 활석 5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량% 및 세레사이트 20~30중량%에 의할 때, 유약의 유면이 좋으며 본 발명에 따른 소지조성물의 열팽창 계수와 비슷한 열팽창계수를 갖게 되어 유약균열이 생기지 않으며 유약 특성이 모두 우수함을 나타낸다. 또한 상기 조성된 유약에 다양한 색상을 갖는 세라믹 안료를 적정량으로 혼합하면 다양한 색상의 내열성 세라믹 조성물을 만들 수 있다. 표 3의 실험결과에 대한 판정기준은 표 4에 나타내었다. Examples 21 to 40 relate to the glaze composition according to the present invention, the optimal composition ratio of the glaze composition according to the present invention applied to the heat-resistant magnetic produced in the possession according to Examples 21 to 40 is 40 to 60% by weight of feldspar It consists of 5 to 15% by weight of talc, 3 to 5% by weight of barium carbonate, 3 to 5% by weight of lithium carbonate, 5 to 10% by weight of zirconium and 20 to 30% by weight of ceresite. Table 2 shows the results of the characteristics test of the glaze composition according to the composition change of the glaze composition, which is the optimum composition ratio of the glaze composition according to the present invention, 40 to 60% by weight, talc 5 to 15% by weight, barium carbonate 3 to 5 Based on the weight percent, lithium carbonate 3 to 5% by weight, zirconium 5 to 10% by weight, and ceresite 20 to 30% by weight, the surface of the glaze is good and has a coefficient of thermal expansion similar to that of the base composition according to the present invention. It shows no glaze cracks and excellent glaze properties. In addition, by mixing a suitable amount of a ceramic pigment having a variety of colors to the composition glaze can be made of a heat-resistant ceramic composition of a variety of colors. The criteria for the test results in Table 3 are shown in Table 4.

유약 조성물의 조성 변화에 따른 유약 조성물의 특성 실험 결과Property test result of glaze composition according to composition change of glaze composition 엽장석Feldspar 활석talc 탄산리튬Lithium carbonate 탄산바륨Barium carbonate 지르코늄zirconium 세레사이트Sherite 실험 결과Experiment result 평활도Smoothness 내열성Heat resistance 용융도Meltness 백색도Whiteness 물리적상태Physical state 융점적합성Melting Point Compatibility 균열 성Crack castle 비교예11Comparative Example 11 3838 1414 55 55 99 2929 양amount 불fire 양amount 양amount 양amount 양amount 불fire 비교예12Comparative Example 12 6161 66 33 33 77 2020 불fire 양amount 불fire 불fire 불fire 불fire 양amount 비교예13Comparative Example 13 5555 44 44 44 77 2626 불fire 양amount 불fire 양amount 양amount 불fire 양amount 비교예14Comparative Example 14 4444 1616 44 44 77 2525 양amount 불fire 양amount 불fire 양amount 양amount 불fire 비교예15Comparative Example 15 5050 1010 22 44 88 2626 불fire 양amount 불fire 양amount 양amount 양amount 양amount 비교예16Comparative Example 16 5050 77 66 44 77 2626 양amount 양amount 양amount 양amount 양amount 불fire 불fire 비교예17Comparative Example 17 5050 1010 44 22 77 2727 불fire 양amount 불fire 양amount 양amount 불fire 양amount 비교예18Comparative Example 18 5050 77 44 66 77 2626 양amount 불fire 양amount 불fire 양amount 양amount 불fire 비교예19Comparative Example 19 5050 1212 44 44 44 2626 양amount 불fire 불fire 불fire 양amount 양amount 불fire 비교예20Comparative Example 20 5050 55 44 33 1212 2626 불fire 양amount 불fire 양amount 불fire 불fire 양amount 비교예21Comparative Example 21 5050 1515 44 44 99 1818 양amount 양amount 양amount 양amount 불fire 양amount 양amount 비교예22Comparative Example 22 5050 55 44 44 66 3131 불fire 불fire 불fire 불fire 양amount 불fire 불fire 실시예21Example 21 5555 88 33 44 77 2323 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예22Example 22 5454 1212 33 33 88 2020 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예23Example 23 5252 99 44 44 77 2424 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예24Example 24 5959 88 55 33 55 2020 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예25Example 25 4848 77 33 33 99 3030 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예26Example 26 5757 66 44 55 66 2222 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예27Example 27 4646 88 33 44 1010 2929 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예28Example 28 4444 99 33 55 99 3030 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예29Example 29 5252 77 55 33 88 2525 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예30Example 30 4646 99 44 44 77 3030 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예31Example 31 4545 1414 44 44 77 2626 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예32Example 32 4747 1111 33 33 1010 2626 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예33Example 33 5252 88 55 44 99 2222 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예34Example 34 4343 1313 55 55 88 2626 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예35Example 35 4949 77 33 33 99 2929 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예36Example 36 5555 66 55 33 77 2424 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예37Example 37 5151 1313 55 55 66 2020 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예38Example 38 4444 1010 44 44 99 2929 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예39Example 39 5050 1010 33 44 77 2626 양amount 양amount 양amount 양amount 양amount 양amount 양amount 실시예40Example 40 4747 1212 44 33 99 2525 양amount 양amount 양amount 양amount 양amount 양amount 양amount

* ‘양’: 양호를 나타냄, ‘불’: 불량을 나타냄.* 'Yang': indicates good, 'Fire': indicates bad.

표 3 실험결과의 요구물성별 판정 기준Table 3 Judgment criteria by required property of experimental results 불 량 Defective 양 호Good 평활도Smoothness 유면이 매끄럽지 못함Oil is not smooth 유면이 매끄러움Oiliness is smooth 내열성Heat resistance 급열, 급냉시 유면 균열 발생Oil cracking occurs during quench and quench 유면 무균열Oil-free cracking 용융도Meltness 단추콘 25mm 미만Button cone less than 25mm 단추콘 25~27 mmButton cone 25-27mm 백색도Whiteness L=90 미만Less than L = 90 L=90 이상L = 90 or more 물리적 상태Physical state 24시간 방치후 유침전 5mm 초과More than 5mm before immersion after standing for 24 hours 5mm 이하5mm or less 융점 적합성Melting Point Suitability 기물 테두리 충격에 약함Weak against physical rim shock 충격에 강함Resistant to shock 균열성Crackability 유약크랙 발생Glaze Crack Generation 유약크랙이 없음No glaze cracks

엽장석은 내열성을 높여 유약균열을 방지해주고 60%보다 많으면 유약의 용융성이 떨어지고 40%보다 적으면 유면균열이 발생한다.The feldspar is resistant to glaze cracks by increasing its heat resistance. If it is more than 60%, the meltability of the glaze is lowered.

탄산리튬(Li2CO3)은 Li2O의 성분을 높여 유면균열을 방지함. 5% 보다 많으면 내열성은 좋아 지나 유면이 좋지 않으며 3% 보다 적으면 내열성이 현저히 떨어진다. Lithium carbonate (Li 2 CO 3 ) increases the composition of Li 2 O to prevent oil cracking. If it is more than 5%, heat resistance is good but oil is not good. If it is less than 3%, heat resistance is significantly decreased.

탄산바륨(BaCO3)은 유약의 용융성을 높여주고 유면을 평활하게 해주나, 5%보다 많으면 유면에 균열이 발생하고 3%보다 적으면 유약의 용융성이 저하된다. Barium carbonate (BaCO 3 ) improves the meltability of the glaze and smoothes the oil surface, but more than 5% causes cracks in the oil surface and less than 3% reduces the meltability of the glaze.

활석은 유약의 용융성을 높여주고 유면을 평활하게 해주나, 15중량% 보다 많으면, 소성온도가 낮아지고 유면균열이 발생한다. 그리고 5% 보다 적으면 유약이 불용상태가 된다.Talc increases the meltability of the glaze and smoothes the oil surface, but when it is more than 15% by weight, the firing temperature is lowered and oil surface cracking occurs. If it is less than 5%, the glaze becomes insoluble.

지르코늄은 백색도를 높여주고 내열성 및 유약의 소결 반응을 좋게 한다. 5%보다 적게 되면 백색도와 내열성이 떨어진다. 그리고 10% 보다 많을 때 유약 말림현상이 발생.Zirconium increases the whiteness, heat resistance and sintering of the glaze. If less than 5%, whiteness and heat resistance are inferior. When it is more than 10%, glaze curling occurs.

세레사이트는 유약의 물리적 성질을 좋게 하고 유약의 흐름을 좋게 하여 제품 생산성을 높여 준다. 그리고 20% 보다 적을 때는 유약이 침전되고 30% 보다 많을 때는 유약 말림현상이 있다.Ceresite improves the product properties by improving the physical properties of the glaze and the flow of the glaze. If it is less than 20%, the glaze is precipitated. If it is more than 30%, the glaze curling phenomenon occurs.

상기와 같이 제안된 소지로 내열자기를 만들어, 초벌로 구어낸 제품에 유약을 바르고 제품을 생산하는 것은 일반도자기의 생산방식과 동일하지만, 본 발명에 따른 혼합조성물인 소지 조성물로 제품을 성형한 후, 재차 정형과정을 거쳐, 1000±50℃에서 초벌로 구어내, 본 발명에 따른 유약조성물로 시유시켜 화공(畵工)한 후, 1250±10℃로 산화 소성해 완제품으로 출하 포장한다. After making the heat-resistant magnetic material as described above, applying the glaze to the first baked product and producing the product is the same as the production method of general ceramics, but after molding the product with a composition composition of the mixed composition according to the present invention After the shaping process, it is first baked at 1000 ± 50 ° C., lubricated by glazing with the glaze composition according to the present invention, and then oxidized and calcined at 1250 ± 10 ° C. for shipping and packaging as a finished product.

도 1은 유약처리 없이 소성된 본 발명에 따른 소지조성물의 표면을 나타내고, 도 2는 본 발명에 따른 유약조성물로 처리되어 소성된 본 발명에 따른 소지조성물의 표면을 나타낸다. 도 1에 따르면 유약을 도포하지 않고 1250℃에서 소성한 본 발명에 따른 소지조성물의 유면이 완전하게 소결되어 기공이 없으며 평활한 상태임을 알 수 있고, 도 2에 따르면 본 발명에 따른 유약조성물로 처리되어 소성된 본 발명에 따른 소지조성물의 표면에는 유약 크랙이 전혀 없음을 알 수 있다.1 shows the surface of the body composition according to the present invention fired without glaze treatment, Figure 2 shows the surface of the body composition according to the invention fired by treatment with a glaze composition according to the present invention. According to Figure 1 it can be seen that the oil surface of the holding composition according to the present invention fired at 1250 ℃ without applying the glaze is completely sintered, no pores and smooth state, according to Figure 2 treated with the glaze composition according to the present invention It can be seen that there is no glaze crack on the surface of the base material composition according to the present invention fired.

본 발명에 의하면, 내열자기의 흡수율을 4%미만으로 극히 낮춰 일반도자기처럼 주방식기로 사용하여도 전혀 불편함이 없을 뿐만 아니라, 투광성(내열 세라믹 조성물의 투명도) 및 내열자기의 강도를 높임으로써 종래 내열 도자기의 두께의 70% 정도로 제조하여도 종래의 자기보다 높은 강도를 기대 할 수 있으므로 생산 업체의 생산성 증가와 에너지 비용감소를 유도하고 사용자들에게는 저 중량감으로 다가갈 수 있으므로 매우 유용하다. 아울러, 백색의 소지조성물을 실현함으로써 다양한 색상 안료를 포함하는 유약조성물로 처리하여 다양한 색상을 발색 가능하게 하여 수요자의 다양한 미적 요구를 충족시킬수 있다. 또한, 본 발명에 따른 소지조성물에 최적의 유약조성물을 제공함으로써 조리시 내열자기의 표면유약균열을 방지할 수 있는 등의 우수한 유약특성을 얻을 수 있다.According to the present invention, the absorption rate of the heat-resistant magnetic is extremely low to less than 4%, and there is no inconvenience in using it as a kitchenware like general ceramics, as well as increasing the light transmittance (transparency of the heat-resistant ceramic composition) and the strength of the heat-resistant magnetic. It can be expected to produce higher strength than conventional porcelain even if it is manufactured to about 70% of the thickness of heat-resistant ceramics, so it is very useful because it can lead to increased productivity and reduced energy cost of producers and lower weight to users. In addition, by realizing a white base material composition can be treated with a glaze composition containing a variety of color pigments to develop a variety of colors to meet the various aesthetic needs of the consumer. In addition, by providing the optimum glaze composition to the base material composition according to the present invention can obtain excellent glaze properties such as to prevent the surface glaze crack of the heat-resistant magnetic when cooking.

Claims (2)

다채색 고강도 내열 세라믹을 위한 소지 조성물로서, 상기 소지 조성물은, 상기 소지 조성물의 전체 중량을 기준으로, 엽장석 50~70중량%, 활석 5~10중량% , 코디어라이트 3~5중량% 탄산바륨3~5중량% 및 점토+백토 10~39중량%로 이루어지는 다채색 고강도 내열 세라믹을 위한 소지 조성물.As a holding composition for a multi-color high strength heat-resistant ceramic, the holding composition, 50 to 70% by weight of feldspar, 5 to 10% by weight of talc, 3 to 5% by weight of cordierite based on the total weight of the holding composition A holding composition for a multicolor high strength heat-resistant ceramic consisting of 3-5% by weight of barium and 10-39% by weight of clay + clay. 제 1항에 따른 소지 조성물로 제품을 성형한 후, 1000±50℃에서 초벌로 구어낸 후에 시유되는 다채색 고강도 내열 세라믹을 위한 유약 조성물로서, As a glaze composition for a multi-color high strength heat-resistant ceramic which is oiled after molding a product with the base material composition according to claim 1 and then baking it at 1000 ± 50 ° C. 상기 유약 조성물은, 상기 유약 조성물의 전체 중량을 기준으로, 엽장석 40~60중량%, 활석5~15중량%, 탄산바륨 3~5중량%, 탄산리튬 3~5중량%, 지르코늄 5~10중량% 및 세레사이트20~30중량%로 이루어지는 다채색 고강도 내열 세라믹을 위한 유약 조성물.The glaze composition, based on the total weight of the glaze composition, 40-60% by weight of feldspar, talc 5-15%, barium carbonate 3-5%, lithium carbonate 3-5%, zirconium 5-10 Glaze composition for a multi-color high strength heat-resistant ceramic consisting of 20% by weight and ceresite 20-30% by weight.
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