KR20030012987A - Composition of lead crystal glass - Google Patents
Composition of lead crystal glass Download PDFInfo
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- KR20030012987A KR20030012987A KR1020010047257A KR20010047257A KR20030012987A KR 20030012987 A KR20030012987 A KR 20030012987A KR 1020010047257 A KR1020010047257 A KR 1020010047257A KR 20010047257 A KR20010047257 A KR 20010047257A KR 20030012987 A KR20030012987 A KR 20030012987A
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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
- C03C4/00—Compositions for glass with special properties
- C03C4/0028—Compositions for glass with special properties for crystal glass, e.g. lead-free crystal glass
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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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
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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
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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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
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
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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
- C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
- C03C3/108—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing boron
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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
- C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
- C03C3/111—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing nitrogen
Abstract
Description
본 발명은 크리스탈 제품을 제조할 때에 사용되어지는 크리스탈 유리의 조성물을 개선하여서 된 것이다.The present invention has been made by improving the composition of crystal glass used when producing a crystal product.
더욱 상세하게는, 크리스탈 유리조성물을 제조함에 있어 종래에 사용되던 광명단(Pb3O4)을 대신하여 규산연 (SiO2, PbO2)을 사용함으로써, 조성물을 제조할 때에 납분해가스가 발생되는 것을 방지하고 인체에 무해하도록 개선된 크리스탈 유리의 조성물을 제공하려는데 있다.More specifically, by using lead silicate (SiO 2 , PbO 2 ) in place of the light list (Pb 3 O 4 ) used in the manufacture of a crystal glass composition, lead decomposition gas is generated when the composition is prepared. It is an object of the present invention to provide a composition of crystal glass that has been improved to prevent it and to be harmless to humans.
일반적으로 식기를 비롯하여 장식물등의 크리스탈유리제품은 중량감을 갖도록 하고 빛의 굴절률을 높이면서 크게 분산되어 지도록하기 위하여 납이 함유되어 있는 크리스탈유리(조성물)을 사용하였다.In general, crystal glass products, such as tableware and decorations, have a crystal glass (composition) containing lead in order to have a sense of weight and to be greatly dispersed while increasing the refractive index of light.
종래의 크리스탈유리는 원료로서 광명단(사산화납, Pb3O4)을 첨가하고, 일반가스나 중질류를 사용하는 도가니에서 간접열에 의해 유리원료로 용융시켜 크리스탈유리의 조성물을 제조하였다. 상기 제조공정을 실시할 때에 광명단(사산화납, Pb3O4)이 용융되면서 납 분해가스가 발생하게 되고, 이와 같이 발생되는 납분해가스가 인체에 치명적인 중금속 중독을 일으키는 요인으로 작용하였다. 또한, 전기 용융로에서 주로 사용하는 몰리브덴 전극봉(Molybdenum Electrode)과 광명단의 분해가스가 화학반응을 일으키면서 몰리가스를 방출시키게 되고, 이와 같이 발생되는 몰리가스에 의해 제품에 치명적인 품질저하를 일으키게 되며, 따라서 크리스탈 유리를 제조할 때에 효율을 높일 수 있는 전기로를 전혀 사용할 수 없는 문제가 있었다.Conventional crystal glass was prepared by adding photoluminescent (lead tetraoxide, Pb 3 O 4 ) as a raw material and melting the glass raw material by indirect heat in a crucible using a general gas or heavy materials. When performing the above manufacturing process, lead decomposition gas is generated as the light list (lead tetraoxide, Pb 3 O 4 ) is melted, and the lead decomposition gas generated as described above acts as a cause of lethal heavy metal poisoning in the human body. In addition, the molybdenum electrode (Molybdenum Electrode) used in the electric melting furnace and the photo gas decomposition gas to release the molybdenum as a chemical reaction, the molybdenum gas generated in this way causes a fatal degradation of the product. When manufacturing crystal glass, there was a problem in that no electric furnace capable of improving efficiency was used at all.
더군다나 최근에는 상기의 문제점들이 대두되면서, 몇몇 국가에서는 납을 규제하게 되었고, 이와 같은 규제로 인해 납(Pb)을 대신하여 바륨(Ba)을 첨가시켜 크리스탈 유리를 생산하기도 하고 있으나, 바륨(Ba)을 첨가시켜 주게되면, 납 분해가스는 방출되지 않지만 강도가 세지고 굴절률이 현저하게 떨어지게 되므로 맑고 투명한 크리스탈의 고유한 특성을 제대로 나타내지 못하는 문제점이 있었다.In addition, as the above problems have recently emerged, some countries have regulated lead, and this regulation has led to the addition of barium (Ba) in place of lead (Pb) to produce crystal glass. When added, the lead decomposition gas is not released, but the strength is strong and the refractive index is significantly reduced, there was a problem that does not properly represent the unique characteristics of the clear and transparent crystal.
또한, 일본에서는 광명단의 분해가스와 몰리브덴 전극봉과의 반응으로 인해 생성되는 제품과 인체에 치명적인 몰리가스의 생성을 방지하고, 생산성이 뛰어난 전기로를 사용하여 제조할 수 있도록 하기 위하여, 주석(Sn)으로 된 전극봉을 사용하여 크리스탈 유리를 제조하기도 하고 있다. 따라서 몰리가스의 발생을 억제하여 제품의 품질저하를 방지할 수 있으나, 주석으로 된 전극봉을 사용할 경우에는 용융점이 낮은 전극봉을 냉각시키기 위해 다량의 냉각수를 필요로 하고, 냉각수를 공급하기 위한 설비와 그 설비를 가동시켜주기 위한 운용비용이 많이 소요된다. 뿐만 아니라 주석은 그 자체가 고가이고 고온에서는 수명이 더욱 짧아지므로 자주 교체해 주어야 하며, 따라서 경제성이 떨어지는 문제가 있었다.In addition, in Japan, tin (Sn) is used to prevent the production of molybdenum, which is harmful to humans and products produced by the reaction of photoluminescent decomposition gas and molybdenum electrode, and to be manufactured using a highly productive electric furnace. Crystal electrodes are also manufactured using the prepared electrodes. Therefore, it is possible to prevent the deterioration of the product quality by suppressing the generation of molle gas, but in the case of using the electrode made of tin, a large amount of cooling water is required to cool the electrode having a low melting point, and the equipment for supplying the cooling water and its Operating costs for running the equipment are high. In addition, since tin itself is expensive and its life is shorter at high temperatures, it has to be replaced frequently, thus lowering economic efficiency.
또한 일반적인 가스나 중질류를 사용하는 도가니에서 간접열에 의해 크리스탈 유리원료로 용융시켜 제조할 경우에는 도가니의 점토질내화벽돌의 침식으로 인해 유리의 오염이 쉽게 발생하였고, 따라서, 청정제인 아비산(As2O3)를 주로 사용하였다. 하지만 아비산(As2O3)은 청정효과 외에도 강한 독성을 지니고 있어, 그로 인한 유해성이 논의되고 있다.In addition, when melting by melting the crystal glass raw material by indirect heat in a crucible using a common gas or heavy streams, the contamination of the glass easily occurred due to the erosion of clay refractory bricks of the crucible, therefore, as a cleaning agent, arsenic acid (As 2 O). 3 ) was mainly used. However, arsenic acid (As 2 O 3 ) has a strong toxicity in addition to the clean effect, the hazards are being discussed.
본 발명은 상기와 같은 문제들을 해소할 수 있도록 하고, 몰리브덴 전극봉을 사용하는 전기로에 의해 제조할 수 있도록 개선된 크리스탈 유리의 조성물을 제공하려는 것이다.The present invention seeks to solve the above problems and to provide a composition of crystal glass which is improved to be manufactured by an electric furnace using molybdenum electrodes.
본 발명의 목적은 크리스탈 유리를 제조할 때에 발생되던 납 분해가스를 원천적으로 배제시킬 수 있도록 된 크리스탈 유리의 조성물을 제공하려는데 있다.It is an object of the present invention to provide a composition of crystal glass which is capable of fundamentally excluding lead cracking gas generated when producing crystal glass.
본 발명의 다른 목적은, 크리스탈유리의 제조공정중에서 전기용융로에 의해 용해시킬 때에 광명단의 분해가스와 몰리브덴전극봉과의 화학반응에 의해 생성되는 몰리가스의 발생을 방지하고, 더불어 제품의 품질이 저하되는 것을 방지할 수 있도록 된 크리스탈 유리의 조성물을 제공하려는데 있다.Another object of the present invention is to prevent the generation of molybdenum gas produced by chemical reaction between photocatalytic decomposition gas and molybdenum electrode when melted by electric melting furnace during the manufacturing process of crystal glass, and the quality of product is deteriorated. It is to provide a composition of crystal glass that can be prevented.
본 발명의 상기 목적은,The above object of the present invention,
규석분(SiO2), 탄산가리(K2CO3), 질산가리(KNO3), 소다회(Na2CO3), 붕사(Na2B4O7·10H2O), 질산소다(NaNO3), 산화안치몬(Sb2O3), 탄산리쥼(Li2CO3)소색제, 산화니켈, 산화네오쥼, 산화엘비움을 혼합·용융시켜서 된 것에 있어서,Silica powder (SiO 2 ), Barium carbonate (K 2 CO 3 ), Barium nitrate (KNO 3 ), Soda ash (Na 2 CO 3 ), Borax (Na 2 B 4 O 7 · 10H 2 O), Sodium nitrate (NaNO 3 ), An antimony oxide (Sb 2 O 3 ), a lithium carbonate (Li 2 CO 3 ) colorant, nickel oxide, neo oxide, and aluminum oxide were mixed and melted,
상기 혼합물에 규산연(PbO, Sio2)을 첨가한 것을 특징으로 하는 크리스탈 유리의 조성물에 의해 달성된다.Lead silicate (PbO, Sio 2 ) is added to the mixture, which is achieved by a composition of crystal glass.
본 발명의 상기 및 기타 목적과 특징은 다음의 상세한 설명에 의해 더욱 명확하게 이해할 수 있을 것이다.The above and other objects and features of the present invention will be more clearly understood by the following detailed description.
본 발명에 따른 크리스탈 유리조성물은 기존의 첨가물 외에 규산연을 첨가시켜 주는 것이 주지적인 특징이다.Crystal glass composition according to the present invention is the main feature to add lead silicate in addition to the existing additives.
특히, 본 발명에서 사용하는 규산연(PbO, SiO2)은 일산화납(PbO)과 규석분(SiO2)을 80~90:10~20의 중량비로 혼합하여 된 것을 사용하고 전체중량의 25~32wt%첨가함을 특징으로 하며, 크리스탈 유리조성물의 제조방법은 가히 공지된 기술사상(방법)과 동일한 방법으로 제조하게 되므로 구체적인 설명은 생략키로 한다.In particular, the lead silicate (PbO, SiO 2 ) used in the present invention is a mixture of lead monoxide (PbO) and silica (SiO 2 ) in a weight ratio of 80 ~ 90:10 ~ 20, 25 ~ of the total weight It is characterized by the addition of 32wt%, the manufacturing method of the crystal glass composition is manufactured by the same method as the known technical idea (method), so a detailed description thereof will be omitted.
상기 크리스탈 유리의 조성물에 첨가되는 물질과 특성을 살펴보면 아래와 같다.Looking at the material and properties added to the composition of the crystal glass as follows.
규석분(SiO2)은 전체 중량의 45~52wt%를 첨가하며, 유리의 기본골격인 망목구조를 형성하여 유리를 안정화시키고 ,Silica powder (SiO 2 ) is added 45 ~ 52wt% of the total weight, and stabilizes the glass by forming a network structure, the basic skeleton of the glass,
규산연 (PbO, SiO2)은 전체 중량의 25~32wt%를 첨가하며, 산화납의 첨가로 유리의 중량감을 높이고 굴절률을 증가시켜 유리를 맑게 한다. 또한 연삭성을 높여 유리의 연삭을 용이하게 하고, 연삭부분은 빛에 의한 반사율이높아져 광택도를 높인다.Lead silicate (PbO, SiO 2 ) adds 25 to 32wt% of the total weight, and the addition of lead oxide increases the weight of the glass and increases the refractive index to clear the glass. In addition, the grinding property is increased to facilitate the grinding of the glass, and the grinding portion increases the reflectance by light to increase the glossiness.
알카리원료와 융제로 사용되는 탄산가리(K2CO3)는 전체 중량의 10~15wt%를 첨가한다. 이는 열분해하여 산화칼륨(K2O)으로 존재하며 유리의 굴절률을 높여 반사각을 크게 하여 주고 따라서, 투명도를 증가시킨다.The alkali carbonate (K 2 CO 3 ) used as a flux and the addition of 10 ~ 15wt% of the total weight. It is pyrolyzed to exist as potassium oxide (K 2 O) and increases the refractive index of the glass to increase the reflection angle, thus increasing the transparency.
알카리원료와 청징제로 사용하는 질산가리(KNO3)는 전체중량의 2~5wt%를 첨가한다. 이는 유리의 융점을 낮추고 열분해하여 산화질소 및 산소를 발생하는 주변의 기포를 흡착하는 탈기포(청징)작용을 한다.The ferric nitrate (KNO 3 ) used as an alkaline raw material and clarifier is added in an amount of 2 to 5wt%. This lowers the melting point of the glass and acts as a degassing (clarifying) adsorbing the surrounding bubbles that generate nitrogen oxides and oxygen by pyrolysis.
소다회(Na2CO3)는 전체 중량의 2~5wt%를 첨가한다. 알카리 원료로 유리중에 열분해하여 산화나트륨(Na2O)로 존재하며, 유리의 융점을 낮춰 융제로 사용된다.Soda ash (Na 2 CO 3 ) is added 2 ~ 5wt% of the total weight. Alkaline raw material is pyrolyzed in glass and exists as sodium oxide (Na 2 O). It is used as a flux by lowering the melting point of glass.
붕사(Na2B4O710H2O)는 전체 중량의 1~4wt%를 첨가하며, 유리에 산화나트륨(Na2O)과 산화붕소(B2O3)의 형태로존재한다. 유리의 열팽창계수를 낮추는 역할을 하며, 특히, 경질유리에서는 필수적으로 사용된다.Borax (Na 2 B 4 O 7 10H 2 O) adds 1 to 4 wt% of the total weight and is present in the form of sodium oxide (Na 2 O) and boron oxide (B 2 O 3 ) in the glass. It serves to lower the coefficient of thermal expansion of the glass, in particular used in hard glass.
질산소다 (NaNO3)는 전체 중량의 1~4wt%를 첨가하며, 유리중에 산화나트륨(Na2O)으로 존재한다. 알카리 원료 및 청징제로 사용되며 작용은 질산가리와 같다.Sodium nitrate (NaNO 3 ) adds 1 to 4 wt% of the total weight and is present as sodium oxide (Na 2 O) in the glass. It is used as an alkaline raw material and clarifier, and its action is the same as that of nitric acid.
산화안치몬(Sb2O3)은 전체 중량의 0.1~0.5wt%를 첨가하며, 청징제로 사용되며유리에 산화안티몬(Sb2O3)의 산화물로 존재한다. 주변의 산소를 흡수하여 밑으로 가라앉았다가 다시 분해되어 산소를 방출하여 정징역할을 한다.Antimony oxide (Sb 2 O 3 ) is added as 0.1 ~ 0.5wt% of the total weight, used as a clarifier and exists as an oxide of antimony oxide (Sb 2 O 3 ) in the glass. It absorbs the surrounding oxygen, sinks to the bottom, decomposes again, and releases oxygen to play a role as a stop.
아비산 (As2O3)은 청징역할을 하며 독극물로 위험하므로 가스와 경질류를 사용하는 수동로에서만 사용하고, 수동로보다 고온으로 용융시키는 자동로에서는 첨가하지 않는다.Because arsenic acid (As 2 O 3 ) acts as a clarifier and is dangerous as a poison, it is used only in manual furnaces using gas and light streams, and not in automatic furnaces that melt at higher temperatures than manual ones.
탄산리쥼(Li2CO3)은 알카리 원료로 사용되기도 하며, 유리의 점도를 낮추며 연삭성을 좋게 하고, 유리를 투명하게 한다.Lithium carbonate (Li 2 CO 3 ) is also used as an alkaline material, lowers the viscosity of the glass, improves the grinding properties, and makes the glass transparent.
소색제로는 보통 산화엘비움(ErO)과 산화니켈(NiO)과 산화네오쥼(Nd2O3)을 사용하는데, 각각 전체 중량의 0.01~0.05wt%, 0.001~0.006wt%, 0.001~0.006wt%를 첨가한다.As a colorant, elbium oxide (ErO), nickel oxide (NiO), and neodymium oxide (Nd 2 O 3 ) are generally used, and 0.01 to 0.05 wt%, 0.001 to 0.006 wt%, and 0.001 to 0.006 wt% of the total weight, respectively. Add%
일반적으로 크리스탈 유리는 광명단(Pb3O4)을 사용하여 제조하였는데, 이를 사용할 경우, 유리조성물을 용융할 때 아래의 반응식에서 보여지는 바와 같이 인체에 치명적인 중금속의 하나인 일산화납(PbO;납 분해가스)이 다량으로 발생되었다.In general, crystal glass was prepared using photoluminescence (Pb 3 O 4 ), when using it, lead monoxide (PbO; lead decomposition), which is one of the deadly heavy metals as shown in the following reaction when melting the glass composition Gas) was generated in large quantities.
2Pb3O4(광명단) ----열---→ 6PbO↑ + O2↑2Pb 3 O 4 (light list) ---- heat --- → 6PbO ↑ + O 2 ↑
하지만 본 발명에서는 광명단(Pb3O4)을 대신하여 광명단(Pb3O4)과 규석분(SiO2)을 1차 용융한 규산연(SiO2, PbO)을 사용하므로, 납이온을 지닌 광명단이 열을 가하기 전에 이미 용융액내에 일산화납(PbO)으로 안정화되어 있어 용융과정에서 별도의 화학반응이 일어나지 않게 된다. 따라서, 기존에 발생하던 납 분해가스가 전혀 발생하지 않게 되는 것이다.However, because the present invention uses a Red lead (Pb 3 O 4) Red lead (Pb 3 O 4) and silica minutes silicate year (SiO 2, PbO) a a (SiO 2) 1 primary melt in place of, Red lead, with the lead ions Before this heat is applied, it is already stabilized with lead monoxide (PbO) in the melt, so that no chemical reaction takes place during the melting process. Therefore, no lead decomposition gas generated in the past does not occur at all.
또한 종래의 전기로를 이용하는 크리스탈유리의 제조공정에서는 전기로의 전극봉으로 사용되는 몰리브덴과 광명단의 분해과정에서 다량 발생하는 산소와 아래와 같은 화학반응에 의해 몰리가스(Mo2O3)가 발생하였다. 이와 같이 발생된 몰리가스(Mo2O3)는 비중이 크므로 용융액에서 공기중으로 빠져나가지 못하고 유리속에 기포상태로 존재하게 되며, 따라서 제품에 치명적인 손상을 입혀 품질저하를 시키는 문제가 발생하였다.In addition, in the manufacturing process of the crystal glass using a conventional electric furnace, molybdenum (Mo 2 O 3 ) was generated by a large amount of oxygen generated in the decomposition process of the molybdenum and the photo list used as the electrode of the electric furnace and the following chemical reaction. Since the generated molybdenum gas (Mo 2 O 3 ) is a large specific gravity, it does not escape into the air from the melt, but exists in the bubble state in the glass, thus causing a problem that the product is fatally damaged to reduce the quality.
2 Mo (전극봉의 몰리브덴)+ 1½O2(광명단으로부터 생성된 분해가스)2 Mo (molybdenum in the electrode) + 1½O 2 (decomposition gas generated from the light cluster)
---> Mo2O3 ---> Mo 2 O 3
하지만 본 발명에서는 광명단을 규산연으로 대체하여 사용함으로서, 전극봉인 몰리브덴과 결합되는 광명단의 분해에 의해 다량 발생하는 산소를 원천적으로 배제시켜 몰리가스가 발생되지 않도록 하였다.However, in the present invention, by using light silicate by replacing lead silicate, the molybdenum gas is not generated by fundamentally excluding oxygen generated in large amounts by decomposition of the light manifest coupled with molybdenum as an electrode.
또한 가스나 중질류를 사용하여 간접열을 이용하도록 하는 종래의 방식에서는 용해시의 내부온도가 1350~1400℃로 점토질 내화벽돌로 된 도가니를 사용하고 있으므로 점토질 내화벽돌의 침식으로 인한 크리스탈 유리제품의 오염이 발생하였고, 이 오염을 억제시키기 위해 독성을 지녔지만 청징성능이 뛰어난 아비산(As2O3)을 첨가하였다. 반면, 본 발명에 의해 크리스탈제조공정에서 취할 수 있게 된 전기로를 사용하는 방식은 용해시의 내부온도가 1500~1550℃로 전기주조된 내화벽돌로된 전기로를 사용함으로 종래의 점토질 내화벽돌로 인한 크리스탈 유리의 오염을 줄일 수 있게 되고, 따라서, 종래에 발생하던 점토질 내화벽돌로 인한 오염이 배제되므로 정징효과를 높이기 위해 첨가하여 주던 독성을 지닌 아비산(As2O3)을 첨가하지 않아도 되도록 하였다. 또한 전기로는 높은 온도로 용융하므로 첨가물들이 쉽게 용해되고 따라서 투명도가 높아지게 된다.In addition, in the conventional method of using indirect heat using gas or heavy streams, the melting temperature of the crystal glass products due to the erosion of clay refractory bricks is used because the internal temperature of melting is 1350 ~ 1400 ° C. Contamination occurred and arsenic acid (As 2 O 3 ), which was toxic but had excellent clarification performance, was added to suppress the contamination. On the other hand, the method of using an electric furnace that can be taken in the crystal manufacturing process according to the present invention uses a furnace made of refractory bricks electroformed at an internal temperature of 1500 to 1550 ° C., resulting in crystals caused by conventional clay refractory bricks. It is possible to reduce the contamination of the glass, thus eliminating the contamination caused by the clay refractory bricks that occurred in the past, so that it is not necessary to add the toxic acid (As 2 O 3 ), which has been added to increase the purification effect. In addition, the electric furnace melts at a high temperature, so that the additives dissolve easily, thus increasing transparency.
이상에서 살펴본 바와 같이, 본 발명은 크리스탈 유리를 제조할 때에 발생하던 납 분해가스를 억제할 수 있고, 일반적인 제조공정에서 비산되는 유해입자들을 확연하게 줄일수 있도록 된 크리스탈 유리의 조성물을 제공할 수 있다.As described above, the present invention can provide a composition of the crystal glass that can suppress the lead decomposition gas generated when producing the crystal glass, and can significantly reduce the harmful particles scattered in the general manufacturing process. .
또한 본 발명은 크리스탈유리의 제조공정중에 전기용융로에서 용해시 광명단의 분해가스와 몰리브덴 전극봉과의 화학반응에 의해 기포발생등의 품질저하를 일으키는 몰리가스의 발생을 억제할 수 있도록 된 크리스탈 유리의 조성물을 제공할 수 있다.In addition, the present invention is a crystal glass composition which can suppress the generation of molybdenum gas, which causes deterioration of quality such as bubble generation by chemical reaction between decomposition gas of the light list and molybdenum electrode when melted in an electric melting furnace during the manufacturing process of crystal glass Can be provided.
또한 기존의 가스식이나 중질류를 사용한 용융방식보다 전기용융방식에 의해 고온으로 용융시켜 첨가물을 완전하게 용융시켜 주고, 점토질 벽돌로 인한 오염을 방지하게 되므로 맑고 투명한 크리스탈 유리의 조성물을 제공할 수 있게 된다.In addition, the melting of the additives by melting at a high temperature by the electric melting method rather than the conventional gas-type or heavy-type melting method to prevent the contamination due to clay bricks to provide a clear and transparent crystal glass composition. .
Claims (3)
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| KR1020010047257A KR20030012987A (en) | 2001-08-06 | 2001-08-06 | Composition of lead crystal glass |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4696909A (en) * | 1986-04-07 | 1987-09-29 | Owens-Illinois Television Products Inc. | Platinum corrosion reducing premelted oxide compositions for lead containing solder glasses |
| JPH03205325A (en) * | 1989-12-28 | 1991-09-06 | Hoya Corp | Lead-containing crystal glass tableware |
| US5976999A (en) * | 1992-07-01 | 1999-11-02 | Proceram | Unleaded transparent vitreous ceramic compositions |
-
2001
- 2001-08-06 KR KR1020010047257A patent/KR20030012987A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4696909A (en) * | 1986-04-07 | 1987-09-29 | Owens-Illinois Television Products Inc. | Platinum corrosion reducing premelted oxide compositions for lead containing solder glasses |
| JPH03205325A (en) * | 1989-12-28 | 1991-09-06 | Hoya Corp | Lead-containing crystal glass tableware |
| US5976999A (en) * | 1992-07-01 | 1999-11-02 | Proceram | Unleaded transparent vitreous ceramic compositions |
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