KR100302235B1 - Glass Ceramic Manufacturing Method - Google Patents

Glass Ceramic Manufacturing Method Download PDF

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KR100302235B1
KR100302235B1 KR1019980058764A KR19980058764A KR100302235B1 KR 100302235 B1 KR100302235 B1 KR 100302235B1 KR 1019980058764 A KR1019980058764 A KR 1019980058764A KR 19980058764 A KR19980058764 A KR 19980058764A KR 100302235 B1 KR100302235 B1 KR 100302235B1
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glass ceramic
blast furnace
sand
furnace slag
temperature
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KR20000042542A (en
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이대열
신형기
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신현준
재단법인 포항산업과학연구원
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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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0036—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents
    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

본 발명은 제철용 고로공정에서 발생하는 고로슬래그와 주물공정에서 발생하는 페주물사를 이용하여 고강도 내마모성의 글래스세라믹을 제조하는 글래스세라믹 제조방법에 관한 것으로, 고로슬래그 60~80%, 페주물사 15~35%, 사문암 0.5~1.0%, 크롬광 2.0~3.0%를 혼합, 용융 및 결정화 처리하여, 최종 조성비가 SiO242~50%, Al2O311~15%, CaO 25~30%, MgO 4.6~5.7%, Cr2O30.9~1.3%로 되도록 함을 특징으로 하며, 매립 폐기되고 있는 폐주물사를 고가인 규사의 대체재로서 활용함으로서 제조되는 글래스세라믹의 기계적 성질을 개선함과 동시에 폐기자원을 재활용함으로써 환경오염을 극소화할 수 있고, 제조원가를 크게 줄일 수 있는 경제적인 효과가 있다.The present invention relates to a glass ceramic manufacturing method for producing a high-strength wear-resistant glass ceramic using the blast furnace slag generated in the steelmaking blast furnace process and the feces found in the casting process, blast furnace slag 60 ~ 80%, feju molding sand 15 ~ 35%, serpentine 0.5 ~ 1.0%, chrome ore 2.0 ~ 3.0% are mixed, melted and crystallized, and the final composition ratio is 42 to 50% of SiO 2 , 11 to 15% of Al 2 O 3 , 25 to 30% of CaO, MgO 4.6 ~ 5.7%, Cr 2 O 3 to 0.9 ~ 1.3%, and by using the waste foundry sand that is disposed of as landfill as a substitute for expensive silica sand, improve the mechanical properties of the glass ceramics produced and at the same time By recycling, it is possible to minimize environmental pollution, and there is an economic effect that can greatly reduce manufacturing costs.

Description

글래스세라믹 제조방법Glass Ceramic Manufacturing Method

본 발명은 제철용 고로공정에서 발생하는 고로슬래그와 주물공정에서 발생하는 폐주물사를 이용하여 고강도 내마모성의 글래스세라믹을 제조하는 글래스세라믹 제조방법에 관한 것이다.The present invention relates to a glass ceramic manufacturing method for producing a high strength wear-resistant glass ceramic using the blast furnace slag generated in the steelmaking blast furnace process and the waste casting sand generated in the casting process.

일반적으로, 고로슬래그를 이용한 글래스세라믹(glass-ceramic) 소재는 통상의 고로슬래그 조성(SiO232.3%, CaO 41.2%, Al2O314.2%, MgO 7.5%, 기타 산화물)에 글래스화 조장물질인 규사와, 핵생성을 위한 기핵물질들을 첨가하여 최종 조성범위를 SiO260% 이상으로 유지시켜 용융, 주조 및 결정화 열처리함으로서 제조된다.Generally, glass-ceramic material using blast furnace slag is a glass-ceramic material in a conventional blast furnace slag composition (SiO 2 32.3%, CaO 41.2%, Al 2 O 3 14.2%, MgO 7.5%, other oxides) Phosphorous sand and nucleating materials for nucleation are added to maintain the final composition range of 60% or more of SiO 2 , thereby producing a melt, casting and crystallization heat treatment.

그러나, 이러한 방법으로 제조된 글래스세라믹 소재는 고로슬래그의 사용비율이 매우 낮고, 규사와 같은 부원료를 다량으로 추가 투입하여야 하기 때문에, 제조원가의 상승을 초래할 뿐만 아니라, 글래스세라믹의 생성량이 일시적으로 결정되기 때문에 기핵물질의 밀도에 따라 강도 및 내마모성이 결정되는 등 재현성이 있는 소재 조직을 얻기가 곤란한 것이 문제점이었다.However, the glass ceramic material manufactured by this method has a very low use ratio of blast furnace slag and a large amount of additional raw materials such as silica sand, which leads to an increase in manufacturing cost, and the production amount of glass ceramic is temporarily determined. Therefore, it was a problem that it was difficult to obtain a reproducible material structure such as the strength and abrasion resistance were determined according to the density of the nucleus material.

이러한 점에 착안하여 종래에는 기핵물질로서 희유, 희토류 산화물을 첨가하여 생성상의 첨가 속도를 조절함으로써, 생성되는 조직을 개선하여 상기 문제점을 해결하고자 하였으나, 희유, 희토류 원소는 비록 그 작용은 우수하더라도 그 값이 고가이기 때문에 대량으로 생산하여야 하는 본 글래스세라믹 소재의 경우 비경제적일 뿐만 아니라, 구매하기가 쉽지 않다는 현실적인 문제점을 발생시켰다.With this in mind, conventionally, rare and rare earth oxides were added as nucleus materials to adjust the formation rate of the product phase, thereby improving the generated structure to solve the above problems. This glass ceramic material, which has to be produced in large quantities because of its high price, is not only uneconomical but also causes a realistic problem that it is not easy to purchase.

또한, 이러한 비경제적인 요소를 해소하기 위하여, 일반적으로는 글래스세라믹 제조에 있어서 글래스망상구조 파괴산화물(glass modifying oxide)에 속하여 그 사용이 불리하다고 알려진 M??를 사문암의 형태로 첨가하여 고로슬래그 중에 필연적으로 함유되는 알루미나와 결합시켜 새로운 초기 결정상을 1차상으로 생성시키므로써 내마모성이 우수한 고강도 글래스세라믹 소재를 제조하는 방법(국내 특허등록 번호 제40702호)이 제시되어 있다.In addition, in order to solve such an uneconomical factor, M ??, which belongs to the glass modifying oxide and is known to be disadvantageous in the manufacture of glass ceramics, is added in the form of serpentine rock. A method of producing a high strength glass ceramic material having excellent wear resistance by combining with alumina, which is inevitably contained, has been proposed (Domestic Patent No. 40702).

또한, 글래스세라믹 제조시 첨가되는 규사와 사문암의 대체재로서, 발전소에서 발생하는 석탄회를 이용하는 방법(특허출원 제95-35487호)도 제시되어 있다.In addition, a method of using coal ash generated in a power plant (Patent Application No. 95-35487) is also proposed as an alternative to silica sand and serpentine added during the manufacture of glass ceramics.

한편, 모든 산업분야에서는 기존 공정의 경제성을 확보하기 위하여 동일한 효과를 나타내면서도 고가의 원료를 대체할 수 있는 대체 원료를 개발하는 방향으로 기술 개발이 진행되고 있는 바와 같이, 본 발명자도 주물공정에서 발생되는 폐주물사를 대체재로서 사용할 수 있는 방안을 연구하게 되었다.On the other hand, in all industries, the present inventors also develop in the casting process, in order to develop alternative raw materials that can replace expensive raw materials with the same effect in order to secure the economics of existing processes. This study was to study how to use the waste foundry sand as a substitute.

일반폐기물로 지정되어 있는 폐주물사의 국내 발생량은 1997년을 기준으로 735,531톤/년이었고, 2000년에는 816,599톤/년까지 증가될 것으로 예상되고 있으나, 폐주물사는 더 이상 회수재생이 불가능할 때까지 계속적으로 사용하기 때문에 배출되는 페주물사는 입경이 아주 작아서 재생 사용할 때 주물사의 통기도를 저하 시키게 되므로 재활용되기보다는 대부분 매립 처리되고 있다.Domestic production of waste founding sand designated as general waste was 735,531 tons / year as of 1997, and it is expected to increase to 816,599 tons / year in 2000, but waste casting sand continues to be used until it can no longer be recovered and recovered. Therefore, the discharged injection molding sand is so small that the air permeability of the foundry sand decreases when the recycled sand is used, so it is mostly disposed of landfill rather than being recycled.

더욱이, 폐주물사는 도로기재층, 벽돌재료, 성토복토용 등으로 재활용하고는 있으나, 그 재활용량은 극히 미미하여 90% 이상이 매립 처리되고 있다.In addition, the waste foundry sand is recycled for road substrate layers, brick materials, and soil coverings, but the recycling amount is extremely small, and more than 90% of landfills are landfilled.

그러나, 환경규제의 강화 및 매립지의 부족 등으로 인하여 향우에는 매립처리에만 의존할 수 없게 될 것이므로 폐주물사의 처리와 관련한 기술의 개발이 시급한 실정이다.However, due to the strengthening of environmental regulations and the lack of landfills, it will be impossible to rely only on landfills for the fragrance, so it is urgent to develop technologies related to the treatment of waste foundry sand.

이러한 폐주물사는 그 구성성분이 하기 표 1에서와 같이 90% 이상의 SiO2를 함유하고 있음과 동시에 반응성이 좋은 미립상태이므로 기존의 글래스세라믹 제조시에 SiO2원으로 사용되는 고가의 규사와 대체하는 것이 가능하다 .또한 폐주물사에 함유되어 있는 MgO, Al2O3및 Fe2O3는 스피넬과 같은 고온정출상을 형성하여 결정성장시 다면체의 핵으로 작용하게 되며, 이 핵의 면에 수직되게 결정성장이 이루어지도록 하는 역할을 하게 된다. 하기 표 1에서 각 수치의 단위는 중량%이다.Such waste foundry sand contains 90% or more of SiO 2 as shown in Table 1, and at the same time, it is a fine state with good reactivity. Therefore, it is recommended to replace the expensive silica sand used as SiO 2 source in the manufacture of glass ceramics. In addition, MgO, Al 2 O 3 and Fe 2 O 3 contained in the waste foundry sand form high temperature crystallized phases such as spinel to act as polyhedral nuclei during crystal growth, and crystal growth perpendicular to the plane of the nucleus. It will play a role to make this happen. In Table 1, the unit of each numerical value is weight percent.

[표 1]TABLE 1

따라서, 본 발명은 일반 폐기물로 분류되어 매립 폐기되고 있는 폐주물사에 함유된 SiO2, Al2O3, FeO3등을 이용하여 기존의 규사 대신 첨가하므로서 고가의 부원료 사용을 대체하는 효과와 폐기자원의 재활용을 통한 환경오염의 극소화를 도모할 수 있도록 하는 글래스세라믹 제조방법을 제공함에 그 목적이 있다.Therefore, the present invention is added to replace the existing silica sand by using SiO 2 , Al 2 O 3 , FeO 3, etc. contained in the waste foundry sand that is classified as a general waste landfill waste and waste resources The object of the present invention is to provide a glass ceramic manufacturing method that can minimize environmental pollution through recycling.

상기의 목적을 달성하기 위한 본 발명은, 고로슬래그 60~80%, 페주물사 15~35%, 사문암 0.5~1.0%, 크롬광 2.0~3.0%를 혼합, 용융 및 결정화 처리하여, 최종 조성비가 SiO242~50%, Al2O311~15%, CaO 25~30%, MgO 4.6~5.7%, Cr2O30.9~1.3%로 되도록 함을 특징으로 한다.The present invention for achieving the above object, blast furnace slag 60-80%, feju water sand 15-35%, serpentine 0.5-1.0%, chrome ore 2.0-3.0% by mixing, melting and crystallization, the final composition ratio is SiO 2 42-50%, Al 2 O 3 11-15%, CaO 25-30%, MgO 4.6-5.7%, Cr 2 O 3 It is characterized in that it is 0.9-1.3%.

또한 본 발명은 상기 글래스세라믹 제조방법에 있어서, 상기 혼합물의 용융 온도는 1500~1540℃로 하고, 초기 핵생성온도는 680℃로 하고, 850~880℃의 결정화 온도에서 1.5~2.5시간 결정화 처리함을 특징으로 한다.In the present invention, in the glass ceramic manufacturing method, the melting temperature of the mixture is 1500 ~ 1540 ℃, the initial nucleation temperature is 680 ℃, crystallization treatment 1.5 ~ 2.5 hours at a crystallization temperature of 850 ~ 880 ℃ It is characterized by.

고로스래그, 폐주물사, 사문암 및 크롬광 등의 첨가 비율은 결정상의 종류, 글래스화의 진행 정도, 용융점, 점도 등을 고려하여 결정되며, 상기의 조성을 벗어나는 경우에는 용융물의 결정상이 다르게 나타나고, 글래스화 되는 양이 현저히 적어짐과 동시에 용융점 및 점도가 높아지게 된다.The ratio of addition of high-loss lag, waste foundry sand, serpentine rock and chromium ore is determined in consideration of the type of crystal phase, the degree of progress of the glass formation, the melting point, the viscosity, and the like. The amount to be made becomes significantly smaller, and the melting point and viscosity become higher.

고로슬래그 중의 M??는 C??와 함께 실리카망상구조를 파괴하여 결정화가 일어날 때 이온의 이동을 쉽게 하여 잔류글래스의 양을 저하시키는 역할을 하게 된다.M ?? in the blast furnace slag, together with C ??, destroys the silica network structure, making it easier to move ions when crystallization occurs, thereby reducing the amount of residual glass.

그러나, 폐주물사에 함유된 SiO2와 AlO3의 경우 글래스세라믹 이론상 유리와 조장원소로써 작용하기 때문에 용융되어 응고되는 과정에서 조기 결정화를 지연시켜 유리화율을 높여주는 역할을 하게 된다.However, since the SiO 2 and AlO 3 contained in the waste foundry sand act as glass ceramics and the constituent elements in glass ceramic theory, it plays a role of increasing the vitrification rate by delaying early crystallization in the process of melting and solidifying.

또한, 일반적으로 기핵제로서 첨가되는 크롬광은 일단 용해 후에도 그 성질상 매우 고온에서 MgO, Al2O3, Fe2O3와 함께 스피넬과 같은 고온정출상을 형성하여 결정성장시 다면체의 핵으로 작용하게 되며 이 핵의 면에 수직되게 결정성장이 이루어지도록 하는 역할을 하게 된다.In general, chromium ore added as a nucleating agent forms a high-temperature crystallized phase such as spinel with MgO, Al 2 O 3 , and Fe 2 O 3 at very high temperatures even after dissolution to form a polyhedral nucleus upon crystal growth. It acts and allows the growth of crystals perpendicular to the plane of the nucleus.

글래스세라믹 제조시 SiO2, Al2O3, CaO 및 MgO 조성의 범위는 1차 결정상을 멀위나이트(Merwinite), 슈도울라스토나이트(Pseudo-Wollastonite) 혹은 아노르타이트(Anorthite)로 형성시키기 위하여 조정되며, 이 상들은 핵성장속도에 따라 잔류성분들에 의하여 초기 결정상으로 유도되기 때문에 소재의 요구 성질에 따라 용융 및 냉각속도를 조절하여 대표조직 즉, 성장된 결정이 보다 더 얽혀지게 되는 조직을 얻을 수 있다는 장점이 있다.The range of SiO2, Al2O3, CaO and MgO compositions in glass ceramics is adjusted to form primary crystalline phases as Merwinite, Pseudo-Wollastonite or Annorthite. Since they are induced to the initial crystal phase by the residual components according to the rate of nuclear growth, it is possible to obtain a representative structure, ie, a structure in which the grown crystal becomes more entangled, by controlling the melting and cooling rates according to the required properties of the material. .

특히, 본 발명은 1차 생성상을 고온 생성상으로 조정하였기 때문에 핵생성온도와 결정화온도의 차이를 두어 결정화 속도를 조절할 수 있는 장점이 있다.In particular, the present invention has the advantage that the crystallization rate can be adjusted by the difference between the nucleation temperature and the crystallization temperature because the primary generated phase is adjusted to a high temperature generated phase.

이하, 실시예를 통하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail through examples.

고로슬래그에 규사를 첨가하여 글래스세라믹 소재를 제조하는 기존의 방법에서 대부분 폐기되고 있는 폐주물사를 다량으로 사용할 수 있는 방법을 개발하기 위하여 상기 표 1에 나타낸 성분을 가진 고로슬래그와 폐주물사를 적절히 배합하여 고주파유도용해로에서 용융시킨 후, 여기에 핵생성물질로서 크롬광과 사문암을 첨가하였다.In order to develop a method that can use a large amount of waste foundry sand, which is mostly discarded in the existing method of manufacturing glass ceramic material by adding silica sand to blast furnace slag, blast furnace slag and waste foundry sand having the components shown in Table 1 above are appropriately mixed. After melting in an induction furnace, chromium ore and serpentine were added as nucleation materials.

이때 배합비는 상기 표 1의 조성범위에 해당되도록 고로슬래그 60~80%, 폐주물사 15~35%, 사문암 0.5~1.0%, 크롬광 2.0~3.0%로 변화시켜 글래스세라믹 소재를 제조하였다.At this time, the blending ratio was changed to blast furnace slag 60 ~ 80%, waste casting sand 15 ~ 35%, serpentine 0.5 ~ 1.0%, chromium ore 2.0 ~ 3.0% to correspond to the composition range of Table 1 to prepare a glass ceramic material.

이때 혼합물의 용융온도는 1500~1540℃이었으며, 주조후 결정화 열처리조건은 초기 핵생성온도가 680℃, 1시간 이후 결정화 온도는 850~880℃에서 1.5~2.5 시간으로 하였다.At this time, the melting temperature of the mixture was 1500 ~ 1540 ℃, the crystallization heat treatment conditions after casting the initial nucleation temperature was 680 ℃, after 1 hour the crystallization temperature was set to 1.5 ~ 2.5 hours at 850 ~ 880 ℃.

[표 2]TABLE 2

상기 표 2는 글래스세라믹 소재의 결정구조에 미치는 용융온도 및 열처리 조건의 영향을 나타낸 것이다.Table 2 shows the influence of melting temperature and heat treatment conditions on the crystal structure of the glass ceramic material.

혼합물의 용융온도의 경우 1500℃ 이하에서는 용융이 되지 않았고, 1540℃ 이상에서는 용탕의 교반이 심해지면서 도가니의 침식과 연소재의 비산 등이 심하게 일어났다.The melting temperature of the mixture was not melted below 1500 ℃, the melting of the molten metal became more severe at 1540 ℃ or more, the erosion of the crucible and the scattering of the combustion materials were severe.

핵생성온도 및 결정화온도 등의 열처리온도의 경우에는 온도가 낮게 되면 핵생성 밀도의 저하와 결정의 조대화 현상이 발생하며, 온도가 높게 되면 2,3차 추가 핵생성이 발생하여 1차 핵생성된 생성상의 성장을 방해하기 때문에 기계적 성질이 저하되는 문제가 있게 된다.In the case of heat treatment temperature such as nucleation temperature and crystallization temperature, when the temperature is low, the nucleation density decreases and coarsening of crystals occurs, and when the temperature is high, the second and third additional nucleation occurs and the primary nucleation occurs. There is a problem that the mechanical properties are degraded because it inhibits the growth of the formed phase.

마찬가지로 열처리시간(핵생성 및 결정화시간)의 경우에도 시간이 너무 짧은 경우에는 핵생성 밀도의 저하와 결정립 조대화의 문제가 있고, 너무 긴 경우에는 추가 핵생성 및 결정성장으로 생성상의 간섭이 발생되는 문제가 있게 된다.Similarly, even in the case of heat treatment time (nucleation and crystallization time), if the time is too short, there is a problem of decrease of nucleation density and grain coarsening, and if too long, additional nucleation and crystal growth cause generation interference. There is a problem.

하기 표 3은 종래 방법 및 본 발명에 의하여 제조된 글래스세라믹 소재의 기계적 성질을 측정하여 나타낸 것으로서, 본 발명재는 종래재에 비하여 고강도, 압축강도 및 경도가 우수하거나 거의 동등한 수준임을 알 수 있다.Table 3 shows the measurement of the mechanical properties of the glass ceramic material prepared by the conventional method and the present invention, it can be seen that the present invention is superior or almost equivalent level of high strength, compressive strength and hardness compared to the conventional material.

[표 3]TABLE 3

본 발명은 매립 폐기되고 있는 폐주물사를 고가인 규사의 대체재로서 활용함으로서, 위에서 본 바와 같이 제조되는 글래스세라믹의 기계적 성질을 개선함과 동시에, 폐기자원을 재활용함으로써 환경오염을 극소화할 수 있고, 제조원가를 크게 줄일 수 있는 경제적인 효과가 있다.The present invention utilizes the waste foundry sand which is disposed of as a substitute for expensive silica sand, thereby improving the mechanical properties of the glass ceramics manufactured as described above, and minimizing environmental pollution by recycling waste resources. There is an economic effect that can be greatly reduced.

Claims (2)

최종 조성비가 SiO242~50%, Al2O311~15%, CaO 25~30%, MgO 4.6~5.7%, Cr2O30.9~1.3%로 되도록 글래스세라믹을 제조하는 방법에 있어서, 원료로서 고로슬래그 60~80%, 페주물사 15~35%, 사문암 0.5~1.0%, 크롬광 2.0~3.0%를 사용하고, 이들 원료를 혼합, 용융 및 결정화 처리하여 제조함을 특징으로 하는 글래스세라믹 제조방법.In the method of manufacturing the glass ceramic so that the final composition ratio is 42 to 50% of SiO 2 , 11 to 15% of Al 2 O 3 , 25 to 30% of CaO, 4.6 to 5.7% of MgO, and 0.9 to 1.3% of Cr 2 O 3 , As a raw material, blast furnace slag 60-80%, feju water sand 15-35%, serpentine 0.5-1.0%, chromium ore 2.0-3.0% are used, and these raw materials are mixed, melted and crystallized, and manufactured. Manufacturing method. 제1항에 있어서, 상기 혼합물의 용융온도는 1500~1540℃로 하고, 초기 핵생성온도는 680℃로 하고, 850~880℃의 결정화 온도에서 1.5~2.5시간 결정화 처리함을 특징으로 하는 글래스세라믹 제조방법.The glass ceramic according to claim 1, wherein the melting temperature of the mixture is 1500-1540 ° C., the initial nucleation temperature is 680 ° C., and the crystallization is 1.5 to 2.5 hours at a crystallization temperature of 850 ° C. to 880 ° C. Manufacturing method.
KR1019980058764A 1998-12-26 1998-12-26 Glass Ceramic Manufacturing Method KR100302235B1 (en)

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Publication number Priority date Publication date Assignee Title
CN106630640A (en) * 2016-12-21 2017-05-10 江苏省冶金设计院有限公司 Method for preparing glass ceramic by comprehensively using solid wastes
WO2018043804A1 (en) * 2016-09-02 2018-03-08 순천향대학교 산학협력단 Wollastonite crystallized glass for artificial tooth and method for coloring same

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KR900009496A (en) * 1988-12-26 1990-07-04 포항종합제철 주식회사 Manufacturing method of high strength glass ceramic material with excellent wear resistance

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900009496A (en) * 1988-12-26 1990-07-04 포항종합제철 주식회사 Manufacturing method of high strength glass ceramic material with excellent wear resistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018043804A1 (en) * 2016-09-02 2018-03-08 순천향대학교 산학협력단 Wollastonite crystallized glass for artificial tooth and method for coloring same
US10889522B2 (en) 2016-09-02 2021-01-12 Soonchunhyang University Industry Academy Cooperation Foundation Wollastonite crystallized glass for artificial tooth and method for coloring same
CN106630640A (en) * 2016-12-21 2017-05-10 江苏省冶金设计院有限公司 Method for preparing glass ceramic by comprehensively using solid wastes

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