KR20030061633A - Porcelain Enamel Slip For Bowl - Google Patents

Porcelain Enamel Slip For Bowl Download PDF

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KR20030061633A
KR20030061633A KR1020020002295A KR20020002295A KR20030061633A KR 20030061633 A KR20030061633 A KR 20030061633A KR 1020020002295 A KR1020020002295 A KR 1020020002295A KR 20020002295 A KR20020002295 A KR 20020002295A KR 20030061633 A KR20030061633 A KR 20030061633A
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oxide
frit
aluminum
lead
slip
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KR1020020002295A
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Korean (ko)
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KR100505363B1 (en
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전승모
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전승모
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/16—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions with vehicle or suspending agents, e.g. slip
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
    • C03C2207/08—Compositions specially applicable for the manufacture of vitreous enamels for light metals

Abstract

PURPOSE: A lead-free composition for the preparation of an aluminum enamelware is provided, which is applied to the inner surface of an aluminum enamelware to improve the tensile strength and the thermal conductivity and to reduce the harmfulness by employing CuO and aluminum oxide instead of a lead-containing material. CONSTITUTION: The lead-free composition comprises the steps of mixing 43 wt% of silicon dioxide, 1-2 wt% of boron oxide, 30 wt% of sodium oxide, 20 wt% of titanium dioxide, 2 wt% of calcium oxide, 0.1 wt% of CuO and 1.5 wt% of aluminum oxide, melting the mixture and injecting the molten one into a cool water to cool it rapidly to form frit; pulverizing the frit by using a common ball mill; and mixing the pulverized frit with water in the ratio of 6:4, and adding 0.2-0.5 wt% of clay, 0.2-2 wt% of boric acid, 2-5 wt% of sodium silicate, 2-5 wt% of silica and 0.3-0.7 wt% of methanol to the mixture to mix them to form slip.

Description

알루미늄 법랑제조용 무연조성물{Porcelain Enamel Slip For Bowl}Lead-free composition for aluminum enamel production {Porcelain Enamel Slip For Bowl}

본 발명은 알루미늄 법랑을 제조할 때에 특히 알루미늄의 내면에 도포되어지는 유약 즉, 무연조성물에 관한 것이다.The present invention relates to glazes, ie, lead-free compositions, which are particularly applied to the inner surface of aluminum when producing aluminum enamel.

이를 좀더 상세히 설명하면, 프리트(Frit)를 조성함에 있어 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 첨가시켜 인장력과 열전도를 향상시키면서 각 성분들을 양호하게 융화시킬 수 있도록 하고, 프리트(Frit)에 점토와 물 등을 첨가하여 통상의 볼 밀(Ball-Mill)에 의해 슬립(Slip: 니장수(泥漿水))으로 형성할 때에 점토와 용매로서 메칠알콜을 첨가하여 줌으로써 점도를 조절하고 휘발성을 양호하게 유지시켜 줄 수 있고 에어로 실리카를 첨가시켜 점도를 조정해 줄 수 있도록 개선된 알루미늄 법랑 제조용 무연조성물을 제공하려는 것이다.In more detail, in forming the frit, cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ) may be added to improve the tensile strength and thermal conductivity, and the components may be satisfactorily blended. Viscosity is controlled by adding clay and water to the frit and adding methyl alcohol as a solvent when clay is formed into a slip by a conventional ball mill. The present invention provides an improved lead-free composition for producing aluminum enamel, which can maintain good volatility and adjust viscosity by adding aero silica.

통상적으로 알루미늄제를 이용하여 법랑을 제조하는 공정은 알루미늄(그릇)를 산으로 세척하여 녹을 제거하는 공정과, 상기 알루미늄기의 표면에 도포시킬 유약 즉, 조성물을 제조하는 공정과, 제조된 조성물(유약: 무리유기질)을 알루미늄에 도포한 후에 소성에 의해 부착(증착)고정시키는 공정으로 이루어지며, 본 발명은상기와 같은 과정에 의해 알루미늄 법랑을 제조할 때에 유약으로 사용되어지는 조성물을 제공하려는 것이다.In general, a process of manufacturing enamel using aluminum is performed by washing aluminum (bowl) with an acid to remove rust, preparing a glaze to be applied to the surface of the aluminum group, that is, preparing a composition, and a manufactured composition ( Glaze: It is made of a process of adhering (depositing) and fixing by firing after applying a hard organic substrate to aluminum, the present invention is to provide a composition that is used as a glaze when producing aluminum enamel by the above process. .

상기와 같이 유약으로 사용되어지는 조성물을 제조하기 위한 방법(공정)은 통상적으로 소정의 원료를 혼합하고 용융시키고 용융물을 냉수(冷水)중에 투입하여 급냉(急冷)시켜 취약한 입상(粒狀)의 유리(Glass)상태 즉, 프리트(Frit)상태로 생성시켜 주는 공정과, 상기 프리트에 점토·안료·물 등을 첨가하고 통상의 볼 밀(Ball-Mill)에 의해 분쇄하여 죽(粥)상태의 슬립(Slip: 니장수(泥漿水))으로 형성시켜 주는 공정으로 이루어진다.As described above, a method (process) for producing a composition to be used as a glaze is typically a weak granular glass by mixing and melting a predetermined raw material and squeezing the melt in cold water to quench it. A process of producing in a glass state, that is, a frit state, and adding clay, pigment, water, etc. to the frit, and pulverizing it by a conventional ball mill to grind it. (Slip: It consists of the process of forming with Nijangsu).

그런데, 종래에는 상기와 같은 유약으로 사용되어지는 조성물을 제조할 때에 사용되어지는 조성물(유약: 무리유기질)은 이산화규소, 산화알루미늄, 이산화티타늄, 산화바륨 등을 소재로 하여 조성되어 있으므로, 인장력과 점성력이 약하여 고온으로 소정 할 때에 평활도를 유지할 수 없었고 알루미늄기와 박리 되는 현상이 발생하여 외부의 미약한 충격에 의해서도 쉽게 변형되거나 파손되는 문제가 발생하였으며, 알루미늄기와 조성물의 팽창계수가 현저하게 달라 균열이 발생하고 그로 인하여 습기가 침투하여 알루미늄에 녹이 발생할 뿐만 아니라 산성물질이 침투하게 되면 부식되는 문제가 있었으며, 그로 인하여 법랑의 외관에 얼룩 등의 문제가 발생하였다. 특히 유연으로서 납이 함유되어 유체에 극히 유해한 문제가 있었다.However, conventionally, the composition (glaze: group organic substrate) used when preparing the composition used as the glaze as described above is composed of silicon dioxide, aluminum oxide, titanium dioxide, barium oxide, etc. Due to the low viscosity, the smoothness could not be maintained at a high temperature, and the peeling phenomenon of the aluminum group occurred, causing a problem of being easily deformed or damaged by a slight external shock. There was a problem that the moisture is penetrated to cause rust in the aluminum as well as to corrode when the acidic material penetrates, thereby causing problems such as stains on the appearance of the enamel. In particular, there was a problem that lead is extremely harmful to the fluid as lead is contained.

이와 같은 문제를 다소나마 해소할 수 있도록 하기 위하여 본인은 국내 특허 제115115호로 선 등록된 "알루미늄 법랑의 제조방법"을 제안하였다.In order to solve this problem to some extent, I proposed a "manufacturing method of aluminum enamel" previously registered in Korean Patent No. 115115.

이의 조성물(유약)은 이산화규소·산화납·산화나트륨·이산화주석·산화리튬·산화칼륨을 혼합하고 1300℃로 용융시킨 후에 냉각수에 의해 냉각시켜 프리트(Frit)를 형성하고, 상기 프리트(Frit)를 통상의 볼 밀(Ball-Mill)에 의해 분말로 분쇄하여 에틸렌·티타늄·규산소다·물을 첨가 혼합하여서 된 것이다.Its composition (glaze) is mixed with silicon dioxide, lead oxide, sodium oxide, tin dioxide, lithium oxide, potassium oxide and melted to 1300 ℃ and then cooled by cooling water to form a frit (Frit) Is pulverized into a powder by an ordinary ball mill and added and mixed with ethylene, titanium, sodium silicate and water.

그러나 이와 같이된 종래의 조성물(유약)은 인장력과 열전도가 약하므로 법랑의 제조에 사용하게 되면 소정 할 때에 평활도가 불 균일하여 알루미늄기와 박리 될 뿐만 아니라 외부의 충격에 의해 쉽게 파손되었고, 알루미늄기와 조성물의 팽창계수가 달라 균열이 발생하고 균열을 통하여 습기가 침투하면서 알루미늄에 녹이 발생하였을 뿐만 아니라 균열을 통하여 산성물질이 침투하여 알루미늄기가 부식되었으며 그로 인하여 법랑의 외관에 얼룩 등의 문제가 발생하였으며, 특히 유연으로서 납이 함유되어 인체에 극히 유해함에도 불구하고 비용이 적게 소요되는 것만으로 지속적으로 사용하게 되는 문제가 있었다.However, the conventional composition (glaze) as described above is weak in tensile strength and thermal conductivity, so when used in the production of enamel, the smoothness is uneven at a predetermined time, not only peeled off the aluminum group but also easily damaged by external impact. As the expansion coefficient of was different, cracks occurred and rust formed in the aluminum as moisture penetrated through the cracks, and acidic substances penetrated through the cracks to corrode the aluminum groups, which caused stains on the appearance of the enamel. Although lead is contained as a soft, extremely harmful to the human body, there is a problem in that it is used continuously only in low cost.

본 발명은 상기와 같은 문제를 해소할 수 있도록 더욱 개선하고, 특히 내면에 도포되어지는 알루미늄 법랑제조용 무연조성물을 제공하려는 것이다.The present invention is to further improve to solve the above problems, and in particular to provide a lead-free composition for producing aluminum enamel to be applied to the inner surface.

본 발명은 프리트(Frit)를 조성함에 있어 통상의 이산화규소·산화붕소·산화나트륨·티타늄·산화칼륨에 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 첨가시켜 형성하고, 상기와 같이 형성된 프리트(Frit)를 통상의 볼 밀(Ball-Mill)에 의해 분말로 분쇄하면서 슬립(Slip: 니장수(泥漿水))으로 형성할 때에 통상의 규산소다·점토·붕산·물 외에 에어로 씨리카와 메칠알콜을 첨가시켜 주는 것을 특징으로 하는 알루미늄 법랑제조용 무연조성물을 제공하는데 그 목적이 있다.In forming the frit, the present invention is formed by adding cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ) to ordinary silicon dioxide, boron oxide, sodium oxide, titanium, and potassium oxide. When the formed frit is formed into a slip while grinding into powder by a conventional ball mill, it is aerosol in addition to the usual soda silicate, clay, boric acid, and water. It is an object to provide a lead-free composition for the production of aluminum enamel, characterized in that the addition of rica and methyl alcohol.

본 발명의 다른 목적은 프리트(Frit)를 조성함에 있어 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 첨가시켜 줌으로써 인장력과 열전도를 향상시키고 융화를 양호하게 유지시킬 수 있도록 하며, 슬립(Slip: 니장수(泥漿水))을 조성할 때에 에어로 씨리카를 첨가시켜 점도를 용이하게 조정하면서 부유제로 이용할 수 있도록 하고 용매로서 메칠알콜을 첨가시켜 휘발성을 향상시킬 수 있도록 하며, 용해 온도가 높은 이산화규소·산화나트륨·티타늄과 용해 온도가 낮은 붕산을 혼합시켜 줌으로써 용융의 밸런스를 효율적으로 맞춰줄 수 있고 산도를 양호하게 유지시켜 줄 수 있도록 된 알루미늄 법랑제조용 무연조성물을 제공하는데 있다.Another object of the present invention is to add a cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ) in the formation of frit to improve the tensile strength and thermal conductivity and to maintain a good compatibility, slip (Slip: When adding nitric water, it is possible to add aero-silica to make it easy to adjust the viscosity and to use it as a floating agent, and to add volatilized methyl alcohol as a solvent to improve volatility. By mixing high silicon dioxide, sodium oxide, titanium, and boric acid with a low melting temperature, it is possible to provide a lead-free composition for producing aluminum enamel that can balance the melting efficiently and maintain the acidity well.

본 발명의 또 다른 목적은 프리트(Frit)를 조성할 때에 인체에 유해한 납(Pb)성분이 함유된 물질을 배제시켜 무연 즉, 인체에 무해한 법랑을 제조할 수 있도록 된 알루미늄 법랑제조용 무연조성물을 제공하는데 있다.Still another object of the present invention is to provide a lead-free composition for producing aluminum enamel, which is capable of producing enamel, which is lead-free, that is harmless to the human body, by removing a substance containing lead (Pb) harmful to the human body when forming frit. It is.

본 발명의 상기 및 기타 목적은,The above and other objects of the present invention,

통상의 이산화규소·산화붕소·산화나트륨·티타늄·산화칼륨을 혼합하여 용융시키고 냉수(冷水)중에 투입하여 급냉(急冷)시켜 프리트(Frit)로 형성하고, 상기 프리트(Frit)를 통상의 볼 밀(Ball-Mill)에 의해 분쇄하여 점토·붕산·물을 첨가 혼합시켜 슬립(Slip: 니장수(泥漿水))으로 형성한 것에 있어서,Conventional silicon dioxide, boron oxide, sodium oxide, titanium, potassium oxide are mixed and melted, poured into cold water, quenched to form frit, and the frit is a conventional ball mill. In the case of grinding by Ball-Mill and adding and mixing clay, boric acid, and water to form a slip,

상기 프리트(Frit)를 성형할 때에 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 더 첨가시켜 성형한 것과,When the frit is molded, it is molded by further adding cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ),

슬립(Slip: 니장수(泥漿水))을 성형할 때에 에어로 규산소다(Na2SiO2)와 에어로 씨리카 및 메칠알콜을 첨가시켜 주는 것이 포함되는 것을 특징으로 하는 알루미늄 법랑제조용 무연조성물에 의해 달성된다.Achieved by lead-free composites for aluminum enamel, characterized in that the addition of aerosol sodium silicate (Na 2 SiO 2 ), aero silica and methyl alcohol when forming a slip do.

본 발명의 상기 및 기타 목적과 특징은 다음의 상세한 설명에 의해 더욱 명확하게 이해 할 수 있을 것이다.The above and other objects and features of the present invention will be more clearly understood by the following detailed description.

프리트(Frit)를 조성함에 있어, 통상의 이산화규소·산화붕소·산화나트륨·티타늄·산화칼륨에 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 첨가하여 혼합시켜 주었다.In forming the frit, cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ) were added and mixed with ordinary silicon dioxide, boron oxide, sodium oxide, titanium and potassium oxide.

상기에서 이산화규소(SiO2)를 43%·산화붕소(B2O2)를 1~2%, 산화나트륨(NaO2)을 30%, 티타늄(TiO2)을 20%, 산화칼륨(CaO)을 2%, 산화제2구리(Cu0)를 0.1% , 산화알루미늄(Fe2O3)을 1.5% 씩을 각각 혼합시키고 통상의 용융로를 이용하는 통상의 방법에 의해 용융시켜 주었으며, 용융물을 냉수(冷水)중에 투입하여 급냉(急冷)시켜 입상(粒狀)상태가 취약한 유리(Glass)상태 즉, 프리트(Frit)의 상태로 생성시켜 주었다.43% of silicon dioxide (SiO 2 ), 1-2 % of boron oxide (B 2 O 2 ), 30% of sodium oxide (NaO 2 ), 20% of titanium (TiO 2 ), potassium oxide (CaO) 2%, cupric oxide (Cu0), 0.1% and aluminum oxide (Fe 2 O 3 ) were mixed by 1.5% each, and melted by the conventional method using a conventional melting furnace, and the melt was melted in cold water. It was added and quenched to produce a glass state, ie, a frit state, in which the granular state was weak.

상기와 같이 프리트(Frit)를 조성할 때에 용융로를 이용하는 통상의 방법에 의해 용융시켜 주는 것과 용융물을 냉수(冷水)중에 투입하여 급냉(急冷)시켜 입상(粒狀)상태가 취약한 유리(Glass)상태 즉, 프리트(Frit)의 상태로 생성시켜 주는 것은 기히 공지 공용되고 있는 기술사상이며, 본 발명에서도 동일한 방법을 이용하여 프리트(Frit)를 조성하도록 하였다.A glass state in which the melt is melted by a conventional method using a melting furnace when forming frit as described above, and the melt is poured into cold water to quench the granules so that a granular state is weak. In other words, it is a well-known technical idea to generate the frit in the state of the frit, and in the present invention, the frit is formed using the same method.

슬립(Slip: 니장수(泥漿水))은 상기 프리트를 통상의 볼 밀(Ball-Mill)에 의해 분쇄하여 죽(粥)상태의 슬립(Slip: 니장수(泥漿水))으로 형성할 때에 통상의 점토·붕산·물에 규산소다(Na2SiO2)·에어로 씨리카·메칠알콜을 첨가 혼합시켜 주었다.Slip is usually formed when the frit is pulverized by a conventional ball mill to form a slip in the form of porridge. Sodium silicate (Na 2 SiO 2 ), aroma silica, and methyl alcohol were added and mixed with clay, boric acid, and water.

상기와 같이 슬립(Slip: 니장수(泥漿水))을 조성할 때에 분말화 된 프리트와 물은 6:4의 비율로 혼합시켜 주었고, 점토를 0.2 ~ 0.5%, 액상의 점도를 조절하기 위한 붕산(B2O2)을 0.2 ~ 2%, 규산소다(Na2SiO2)를 2 ~ 5%, 액상화시킬 때에 점도를 조정하고 부유제로 이용되어지는 에어로 씨리카를 2 ~ 5%, 휘발성을 양호하게 할 수 있도록 하는 용매로서 메칠알콜을 0.3 ~ 0.7% 씩 각각 혼합시켜 주었으며, 이와 같이 혼합시켜 줌으로써 알루미늄 법랑을 제조할 때에 알루미늄기의 표면에 도포되어지는 유약 즉, 슬립(Slip: 니장수(泥漿水))의 조성을 완료할 수 있었다.When forming a slip as described above, the powdered frit and water were mixed at a ratio of 6: 4, and the boric acid for adjusting the viscosity of the liquid 0.2 ~ 0.5%, liquid phase 0.2-2% of (B 2 O 2 ), 2-5% of sodium silicate (Na 2 SiO 2 ), adjust viscosity when liquefying, 2-5% of aero silica used as suspending agent, good volatility Methyl alcohol was mixed by 0.3 to 0.7%, respectively, as a solvent to make it possible. By mixing in this way, the glaze applied to the surface of an aluminum group, that is, slip (Slip: Nijangsu) The composition of water) could be completed.

이와 같이 조성된 유약 즉, 슬립(Slip: 니장수(泥漿水))은 알루미늄기의 표면에 도포하고, 통상의 소성로를 이용하여 550℃의 온도상태에서 소성시켜 줌으로써 알루미늄 법랑을 제조할 수 있게 된다.The glaze thus formed, that is, slip, is applied to the surface of the aluminum group and calcined at a temperature of 550 ° C. using a conventional firing furnace to produce aluminum enamel. .

이상에서와 같이 본 발명은 프리트(Frit)를 조성할 때에 납이 함유되어 있는 물질을 대신하여 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 첨가시켜 주므로 인장력과 열전도를 향상시키고 융화를 양호하게 유지시킬 뿐만 아니라 무연상태를 유지하므로 인체에 무해한 법랑을 제조할 수 있으며, 슬립(Slip: 니장수(泥漿水))을 조성할 때에 에어로 씨리카와 메칠알콜을 첨가시켜 주므로 점도를 조정하고 휘발성을 향상시키며, 용해 온도가 높은 물질과 용해 온도가 낮은 물질을 혼합시켜 용융의 밸런스를 효율적으로 맞춰주고 산도도 양호하게 유지시켜 주므로, 알루미늄이 박리 되는 현상이 발생되지 않게 되고, 외부의 미약한 충격에 의해서도 쉽게 변형되거나 파손되지 않게 되며, 균열이 발생되지 않을 뿐만 아니라 습기가 침투하여 알루미늄에 녹이 발생하거나 산성물질이 침투하여 부식되는 것을 방지할 수 있으며, 따라서 제품의 품질도 향상시킬 수 있게 된다.As described above, the present invention adds cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ) in place of the lead-containing material to form frit, thereby improving tensile strength and thermal conductivity and fusion. Not only maintains good, but also lead-free state can be produced enamel harmless to the human body, aerosilica and methyl alcohol is added when forming a slip (slip) to adjust the viscosity It improves the volatility, improves the balance of melting and keeps the acidity well by mixing materials with high melting temperature and materials with low melting temperature, so that the phenomenon of aluminum peeling does not occur. It will not be easily deformed or damaged by impact, and it will not cause cracks or rust in aluminum due to moisture penetration. It is also possible to prevent the ingress of acidic substances and corrosion, thereby improving the quality of the product.

Claims (2)

통상의 이산화규소·산화붕소·산화나트륨·티타늄·산화칼륨을 혼합하여 용융시키고 냉수(冷水)중에 투입하여 급냉(急冷)시켜 프리트(Frit)로 형성하고, 상기 프리트(Frit)를 통상의 볼 밀(Ball-Mill)에 의해 분쇄하여 점토·붕산·물을 첨가 혼합시켜 슬립(Slip: 니장수(泥漿水))으로 형성한 것에 있어서,Conventional silicon dioxide, boron oxide, sodium oxide, titanium, potassium oxide are mixed and melted, poured into cold water, quenched to form frit, and the frit is a conventional ball mill. In the case of grinding by Ball-Mill and adding and mixing clay, boric acid, and water to form a slip, 상기 프리트(Frit)를 성형할 때에 산화제2구리(Cu0)와 산화알루미늄(Fe2O3)을 더 첨가시켜 성형한 것과,When the frit is molded, it is molded by further adding cupric oxide (Cu0) and aluminum oxide (Fe 2 O 3 ), 슬립(Slip: 니장수(泥漿水))을 성형할 때에 에어로 규산소다(Na2SiO2)와 에어로 씨리카 및 메칠알콜을 첨가시켜 주는 것이 포함되는 것을 특징으로 하는 알루미늄 법랑제조용 무연조성물.A lead-free composition for producing aluminum enamel, comprising adding aerosol sodium silicate (Na 2 SiO 2 ), aero silica, and methyl alcohol when forming a slip. 제 1항에 있어서,The method of claim 1, 프리트(Frit)는 이산화규소(SiO2)를 43%·산화붕소(B2O2)를 1~2%, 산화나트륨(NaO2)을 30%, 티타늄(TiO2)을 20%, 산화칼륨(CaO)을 2%, 산화제2구리(Cu0)를 0.1% , 산화알루미늄(Fe2O3)을 1.5% 씩을 각각 혼합시킨 것과,Fri is 43% of silicon dioxide (SiO 2 ), 1-2 % of boron oxide (B 2 O 2 ), 30% of sodium oxide (NaO 2 ), 20% of titanium (TiO 2 ), potassium oxide 2% of CaO, 0.1% of cupric oxide (Cu0), and 1.5% of aluminum oxide (Fe 2 O 3 ), respectively, 슬립(Slip: 니장수(泥漿水))은 분말화 된 프리트와 물을 6:4의 비율로 혼합시키고, 점토를 0.2 ~ 0.5%, 붕산(B2O2)을 0.2 ~ 2%, 규산소다(Na2SiO2)를 2 ~ 5%,에어로 씨리카를 2 ~ 5%, 메칠알콜을 0.3 ~ 0.7% 씩 각각 혼합시킨 것을 특징으로 하는 알루미늄 법랑제조용 무연조성물.Slip is a 6: 4 ratio of powdered frit and water, 0.2 to 0.5% clay, 0.2 to 2 % boric acid (B 2 O 2 ), and silicon silicate. A lead-free composition for producing aluminum enamel, characterized in that (Na 2 SiO 2 ) 2 to 5%, aero silica 2 to 5%, methyl alcohol 0.3 to 0.7%, respectively.
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US4751358A (en) * 1986-05-21 1988-06-14 Verrerie Cristallerie D'arques J.G. Durand & Cie Cooking container having a browning coating for microwave ovens and a method of forming the coating
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