KR20050092485A - Unshrinking high temperature light weight refractory containing metal powder - Google Patents
Unshrinking high temperature light weight refractory containing metal powder Download PDFInfo
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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Abstract
본 발명은 산화알루미늄(Al2O3)과 산화규소(SiO2)가 포함된 무기섬유 20 내지 50 중량%와, 알루미나 시멘트가 포함된 무기바인더 10 내지 30 중량%와, 중공 알루미나 5 내지 30 중량%로 이루어져 고온에서도 높은 내화도를 가지며, 수축에 따른 균열과 탈락을 방지하고 단열성을 유지하는 부정형 내화단열재로서, 금속분말 1 내지 10 중량%를 추가로 혼합하여 제조되는 것을 특징으로 한다.The present invention is 20 to 50% by weight of inorganic fibers containing aluminum oxide (Al 2 O 3 ) and silicon oxide (SiO 2 ), 10 to 30% by weight of inorganic binder containing alumina cement, 5 to 30% by weight of hollow alumina It is made of% has a high degree of fire resistance even at high temperatures, and prevents cracking and dropping due to shrinkage, and is an amorphous refractory insulating material that maintains heat insulation, characterized in that it is prepared by further mixing 1 to 10% by weight of the metal powder.
본 발명에 따르면 제철소나 압연공장에서 사용되는 고온의 시설에 사용되는 부정형 무기섬유 내화단열재가 고온에서 수축함에 따라 균열, 열전도율 상승 등 문제를 해결하는 효과가 있다.According to the present invention, as the amorphous inorganic fiber refractory insulating material used in a high temperature facility used in a steel mill or a rolling mill shrinks at a high temperature, there is an effect of solving problems such as cracking and heat conductivity increase.
Description
본 발명은 금속분말이 포함된 무수축성 초고온 경량내화단열재에 관한 것으로서, 보다 상세하게는 무기섬유와 무기바인더로 이루어진 부정형 무기섬유 내화단열재에 규소나 알루미늄으로 이루어진 금속분말을 첨가함으로써, 고온의 상태에서 금속분말이 산화하면서 부피가 팽창함에 따라 무기섬유의 수축에 따른 부피감소를 보상하여 내화단열재의 균열에 의한 탈락이나 열전도의 저하를 해결하는 금속분말이 포함된 무수축성 초고온 경량내화단열재에 관한 것이다.The present invention relates to a non-shrinkable ultra-high temperature lightweight refractory insulating material containing a metal powder, more specifically, by adding a metal powder of silicon or aluminum to the amorphous inorganic fiber refractory insulating material consisting of inorganic fibers and inorganic binder, The present invention relates to a non-condensable ultra-high temperature lightweight refractory insulating material containing a metal powder that compensates for the volume reduction due to shrinkage of the inorganic fiber as the volume of the metal powder is oxidized, thereby eliminating dropping due to cracking of the refractory insulating material or lowering of thermal conductivity.
무기섬유와 무기바인더를 포함하는 부정형 무기섬유 내화단열재는 제철소에서 사용되는 래들, 래들예열기 카바, 턴디쉬나 압연공장에서 사용되는 가열로 등에서 고온에서 표면의 탈락을 억제하고 단열성을 높여 에너지의 낭비를 줄이기 위하여 많이 사용되는 재료이다.Infinite inorganic fiber refractory insulation materials including inorganic fibers and inorganic binders prevent waste of energy at high temperatures in ladles, ladle preheater covers and steel furnaces used in tundish or rolling mills, and increase thermal insulation to reduce waste of energy. It is a material used a lot to reduce.
무기섬유를 포함한 내화단열재는 높은 내화성능과 기존 내화물보다 우수한 단열성을 지니고 자연상태에서 양생되며, 기존 캐스타블보다 1.5 내지 6배 정도 비중이 낮고 접착력이 우수한 장점이 있다.Refractory insulation including inorganic fibers has a high fire resistance and excellent thermal insulation than conventional refractory and is cured in a natural state, has a specific gravity of 1.5 to 6 times lower than the existing castable and has excellent adhesive strength.
무기섬유는 산화알루미늄(Al2O3)과 산화규소(SiO2)를 주요성분으로 하는 1260℃ 무기섬유와, 산화지르코늄(ZrO2)이 추가된 1400℃ 무기섬유가 대표적인 것으로서, 고온에 노출시 부피가 급격히 수축을 하게된다.Inorganic fibers are representative of 1260 ° C inorganic fiber containing aluminum oxide (Al 2 O 3 ) and silicon oxide (SiO 2 ) and 1400 ° C inorganic fiber added with zirconium oxide (ZrO 2 ). The volume contracts sharply.
이러한 수축은 900℃ 정도에서 시작을 하여 1300 내지 1400℃가 되면서 급격한 수축률을 나타내는데, 고온에서 내화단열재가 수축을 시작하여 일정한 정도를 넘어서게 되면, 부피의 수축으로 인하여 내화단열재 표면에 균열이 발생하게 되고, 균열이 더 진행되면 내외부가 박리되어 내화단열재가 탈락되는 현상이 벌어진다. 또한 부피 수축에 의한 기공의 감소로 열전도율이 커지고 단열성의 급격한 저하가 발생하여 에너지 손실이 많아진다.Such shrinkage starts at about 900 ° C. and becomes 1300 to 1400 ° C., and shows a sharp shrinkage rate. When the fire insulating material starts to contract at a high temperature and exceeds a certain level, cracks are generated on the surface of the fire insulating material due to shrinkage of the volume. As the crack progresses further, the internal and external parts are peeled off to cause the fireproof insulation to fall off. In addition, the reduction of the pores due to volume shrinkage increases the thermal conductivity and a sharp decrease in the thermal insulation to increase the energy loss.
종래의 무기섬유를 이용한 내화단열재가 고온에서 급격히 수축하면서 균열을 일으키고 수축으로 인한 열전도율 상승의 문제점을 해결하기 위하여 수축이 일어나지 않도록 하는데에 많은 연구가 진행되어 왔다. 그러나 수축이 종래의 무기섬유 내화단열재 고유의 성질이어서 수축 자체를 없앨 수는 없었다.In order to solve the problem of the thermal insulation of the conventional heat-resistant insulating material using the inorganic fiber shrinks sharply at high temperature and the thermal conductivity increase due to the shrinkage has been a lot of research has been progressed. However, the shrinkage is inherent in the conventional inorganic fiber refractory insulating material, and thus could not eliminate the shrinkage itself.
따라서 수축이 되더라도 이를 상쇄시킬 수 있는 재료가 필요하게 되었으나, 일반적인 팽창재는 1300도까지 그 성질을 유지하기 어려우므로 이 이상의 온도에서 견디는 내화도가 높은 팽창재가 요구되게 되었다.Therefore, a material capable of offsetting the shrinkage is required, but since the general expansion material is difficult to maintain its properties up to 1300 degrees, it is required to have a high refractory expansion material that can withstand temperatures higher than this.
본 발명은 이러한 문제점을 해결하기 위하여 안출된 것으로서, 무기섬유 내화단열재에 팽창재로서 금속분말을 혼합하여 제조함으로써, 고온에서 금속의 산화에 따른 팽창을 이용하여 내화단열재의 수축을 방지하고, 균열이나 탈락을 방지하는 금속분말이 포함된 무기섬유 내화단열재를 제공하는 것을 목적으로 한다.The present invention has been made to solve such a problem, by preparing a mixture of metal powder as an expanding material in the inorganic fiber fire insulating material, by using the expansion according to the oxidation of the metal at high temperature to prevent the shrinkage of the refractory insulating material, cracking or falling off An object of the present invention is to provide an inorganic fiber refractory insulating material containing a metal powder.
금속은 산화되면서 팽창하고, 금속이 산화된 결과물인 금속산화물은 기본적으로 높은 내화도를 갖고 있으며, 규소(Si)나 알루미늄(Al)은 고온에서 산화물로 변하면서 팽창성과 높은 내화도를 보여주므로 1300도 이상에서 팽창재로서 좋은 특성을 보여주고 있다.The metal swells as it oxidizes, and the metal oxide as a result of oxidizing the metal has a high degree of fire resistance.Since silicon (Si) or aluminum (Al) changes to oxide at high temperature, it shows expansion and high fire resistance, so it is more than 1300 degrees. Shows good properties as an inflator.
특히 규소(Si)나 알루미늄(Al)은 산화하면서 산화물로 변하면서 팽창성과 높은 내화도를 보여주므로 1300도 이상에서 팽창재로 사용될 수 있다.In particular, silicon (Si) or aluminum (Al) can be used as an expansion material at 1300 degrees or more because it shows the expandability and high fire resistance as it turns into an oxide while oxidizing.
전술한 문제점을 해결하기 위한 본 발명은 산화알루미늄(Al2O3)과 산화규소(SiO2)가 포함된 무기섬유 20 내지 50 중량%와, 알루미나 시멘트가 포함된 무기바인더 10 내지 30 중량%와, 중공 알루미나 5 내지 30 중량%로 이루어져 고온에서도 높은 내화도를 가지며, 수축에 따른 균열과 탈락을 방지하고 단열성을 유지하는 부정형 내화단열재로서, 금속분말 1 내지 10 중량%를 추가로 혼합하여 제조되는 것을 특징으로 한다.The present invention for solving the above problems is 20 to 50% by weight of inorganic fibers containing aluminum oxide (Al 2 O 3 ) and silicon oxide (SiO 2 ), and 10 to 30% by weight of inorganic binder containing alumina cement and , Made of 5 to 30% by weight of hollow alumina, has a high degree of fire resistance even at high temperatures, prevents cracking and dropping due to shrinkage and maintains heat insulation, and is prepared by further mixing 1 to 10% by weight of metal powder. It features.
상기 금속분말은 분말상태의 규소(Si), 알루미늄(Al), 지르코늄(Zr), 크롬(Cr), 마그네슘(Mg) 중 어느 하나 또는 하나 이상으로서, 1200℃ 이상의 온도에서 산화하여 각각 산화규소(SiO2), 산화알루미늄(Al2O3), 산화지르코늄(ZrO 2), 산화크롬(Cr2O3), 산화마그네슘(MgO)이 되면서 부피가 팽창하는 것을 특징으로 한다.The metal powder is any one or more of powdered silicon (Si), aluminum (Al), zirconium (Zr), chromium (Cr), magnesium (Mg), and oxidized at a temperature of 1200 ℃ or more, respectively. SiO 2 ), aluminum oxide (Al 2 O 3 ), zirconium oxide (ZrO 2 ), chromium oxide (Cr 2 O 3 ), magnesium oxide (MgO) characterized in that the volume is expanded.
이하 본 발명의 실시예에 따른 금속분말이 포함된 무수축성 초고온 경량내화단열재(이하 '내화단열재'라 함)에 대하여 상세히 설명한다.Hereinafter will be described in detail with respect to the non-shrinkable ultra-high temperature lightweight refractory insulating material (hereinafter referred to as "fire insulating material") containing a metal powder according to an embodiment of the present invention.
무기섬유는 산화알루미늄(Al2O3)과 산화규소(SiO2)가 혼합된 분말상태로 생산되며, 무기섬유 내화단열재의 20 내지 50%의 무게를 차지하는데, 내화성과 단열성을 지니게 된다.Inorganic fibers are produced in a powder state in which aluminum oxide (Al 2 O 3 ) and silicon oxide (SiO 2 ) are mixed, and account for 20 to 50% of the inorganic fiber refractory insulating material, and have fire resistance and heat resistance.
무기바인더는 알루미나 시멘트를 주성분으로 하여 생산되며, 무기섬유 내화단열재의 10 내지 30%의 무게를 차지하는데, 내화단열재에 포함된 무기섬유를 결합하고 고온에서 고강도와 내화성을 유지할 수 있게 한다.Inorganic binders are produced based on alumina cement, and account for 10 to 30% of the weight of the inorganic fiber refractory insulation, which combines the inorganic fibers contained in the refractory insulation and maintains high strength and fire resistance at high temperatures.
이외에도 무기섬유 내화단열재에는 중공 알루미나(Bubble Alumina), 저온결합체(폴리아크릴레이트), 경화촉진제(수산화칼슘), 고온내화도안정제(산화크롬), 건조촉진제, 침전방지제, 분산제, 증점제, 결합촉진제, 방부제 등이 첨가되어 생산되는데, 무기섬유와 무기바인더가 포함된 부정형 무기섬유 내화단열재의 조성이나 생산방법은 당업자에게 잘 알려진 사실이므로 상세한 설명은 생략한다.In addition, the inorganic fiber refractory insulation includes hollow alumina, low temperature binder (polyacrylate), hardening accelerator (calcium hydroxide), high temperature refractory stabilizer (chromium oxide), drying accelerator, precipitation inhibitor, dispersant, thickener, binding accelerator, preservative, etc. This is produced by addition, the composition and production method of the amorphous inorganic fiber refractory insulation material containing inorganic fibers and inorganic binders are well known to those skilled in the art, so detailed description thereof will be omitted.
내화단열재에는 5 내지 30 중량%의 중공 알루미나가 혼합되는데, 중공 알루미나는 내부가 비어있는 알루미나 내화원료로서, 고온에서 무기섬유의 수축을 억제해주는 효과가 있다. 즉, 중공 알루미나가 포함된 내화단열재가 고온의 상태가 되면서 무기섬유가 수축을 시작하게 되면, 중공 알루미나는 체적 변화가 없어서, 무기섬유 수축에 따른 내화단열재의 부피의 수축을 막아주고, 내화단열재의 골격이 무너지는 것을 방지한다.5 to 30% by weight of the hollow alumina is mixed with the refractory insulating material, and the hollow alumina is an alumina refractory raw material having an empty inside, and has an effect of suppressing the shrinkage of the inorganic fiber at a high temperature. That is, when the inorganic fiber starts to shrink while the refractory insulating material containing the hollow alumina is in a high temperature state, the hollow alumina has no volume change, thereby preventing the volume of the refractory insulating material from shrinking due to the shrinkage of the inorganic fiber, Prevents the skeleton from falling apart.
중공 알루미나는 1800℃ 정도의 온도가 될 때까지 체적변화가 거의 없으므로 무기섬유가 수축이 되는 것을 어느정도 버텨주는 역할을 할 수 있다. Since the hollow alumina has almost no volume change until the temperature is about 1800 ° C., the hollow alumina may play a part in supporting the shrinkage of the inorganic fiber.
무기섬유 내화단열재는 고온에 노출되는 표면에 일반 콘크리트 시공과 같이 물과 반죽한 형태로 시공되는데, 건조후 조업에 들어가 900℃ 이상의 고온이 되면 점차로 수축을 시작하게 되어 1300 내지 1400℃ 정도가 되면 최대의 수축률을 나타낸다. Inorganic fiber refractory insulation is kneaded with water on the surface exposed to high temperature like general concrete construction. After drying, it enters the operation and starts to shrink gradually when it reaches a temperature higher than 900 ℃. The shrinkage ratio of
이때 내화단열재의 수축으로 인한 균열과 기공율 감소를 방지하려면 무기섬유가 수축되는 만큼 내화단열재를 팽창시켜 주는 성분이 필요하다.In this case, in order to prevent cracking and porosity reduction due to shrinkage of the fireproof insulation, a component that expands the fireproof insulation as much as the inorganic fiber shrinks is required.
금속은 고온에서 산화되어 MXOY의 형태로 변화하면서 부피가 팽창하게 된다. 따라서 무기섬유 내화단열재에 분말상태의 금속을 첨가하면 고온에서 금속이 산화하면서 부피가 팽창하고, 무기섬유의 수축에 따른 특성 저하를 방지할 수 있게 된다.The metal is oxidized at high temperature and changes in the form of M X O Y , causing the volume to expand. Therefore, when the powder metal is added to the inorganic fiber refractory insulating material, the volume of the metal is expanded while the metal is oxidized at a high temperature, thereby preventing the deterioration of properties due to the shrinkage of the inorganic fiber.
본 발명에서는 금속분말 상태의 규소(Si) 또는 알루미늄(Al)을 팽창제로 사용하고 있는데, 규소는 산화되면서 산화규소(SiO2)가 되며, 알루미늄은 산화알루미늄(Al2O3)이 되면서, 부피가 팽창한다.In the present invention, a metal powder of silicon (Si) or aluminum (Al) is used as an expanding agent, while silicon is oxidized to silicon oxide (SiO 2 ), and aluminum becomes aluminum oxide (Al 2 O 3 ), Expands.
금속분말의 금속은 내화단열재 대기 분위기의 고온에서 산소와 결합하여 산화물이 되면서 부피가 팽창한다.The metal of the metal powder expands as it becomes an oxide by combining with oxygen at a high temperature in an atmosphere of a refractory insulating material.
또한, 금속분말은 온도가 증가함에 따라 소결제 역할을 하면서 무기섬유의 결합력을 증가시켜 내화단열재의 압축강도와 곡강도를 증가시키는 효과가 있다.In addition, the metal powder has the effect of increasing the compressive strength and bending strength of the refractory insulating material by increasing the bonding strength of the inorganic fiber while acting as a sintering agent as the temperature increases.
표1은 본 발명의 실시예에 따른 내화단열재와 종래 기술에 따른 내화단열재의 비교시험 결과를 나타낸 것이다.Table 1 shows the comparative test results of the refractory insulating material according to the embodiment of the present invention and the refractory insulating material according to the prior art.
본 발명의 실시예에 따른 내화단열재에서는 규소를 무기섬유 내화단열재의 6 중량% 만큼 첨가하였다.In the refractory insulating material according to the embodiment of the present invention, silicon was added as much as 6% by weight of the inorganic fiber refractory insulating material.
표1에서 알 수 있는 바와 같이, 본 발명은 종래 기술에 비하여 1300℃와 1400℃에서 각각 0.47과 6.63의 선변화율(수축률) 차이가 있다.As can be seen from Table 1, the present invention has a difference in line change (shrinkage) of 0.47 and 6.63 at 1300 ℃ and 1400 ℃, respectively, compared to the prior art.
또한 열전도율도 훨씬 낮아서 에너지 절감효과가 우수하 내화단열재로서의 특성을 보이고 있다.In addition, the thermal conductivity is much lower, which is excellent in energy saving effect, and has shown characteristics as a fire insulation material.
도1은 본 발명의 실시예에 따른 내화단열재의 공인시험인증서이며, 도2는 본 발명의 실시예에 따른 내화단열재의 품질비교표이다.1 is an official test certificate of the fireproof insulation according to an embodiment of the present invention, Figure 2 is a quality comparison table of the fireproof insulation according to an embodiment of the present invention.
도1에 따르면, 본 발명의 내화단열재는 산화알루미늄이 65.9% 포함되어 있으며, 1400℃에서 소성 후 선 변화율이 -0.84로서 표1에 나타난 실험 결과와 근사함을 알 수 있다.According to Figure 1, the refractory insulating material of the present invention contains 65.9% of aluminum oxide, it can be seen that the line change rate after firing at 1400 ℃ is -0.84, close to the experimental results shown in Table 1.
도2에 따르면, 1400℃에서 선변화율이 -0.7로서 일본기업의 제품의 -0.9, 국내 K사의 제품의 -1.33(1200℃)에 비하여 현저하게 수축률이 감소했음을 알 수 있다.According to Figure 2, the linear change rate at -1400 ℃ is -0.7, it can be seen that the shrinkage rate is significantly reduced compared to -0.9 of the product of the Japanese company, -1.33 (1200 ℃) of the product of the domestic K company.
도3은 내화단열재에 포함되는 금속분말의 비율 변화에 따른 수축률의 변화를 나타낸 그래프이다.3 is a graph showing a change in shrinkage rate according to a change in the proportion of the metal powder included in the refractory insulating material.
도3에의 수축률은 금속분말로 규소(Si)를 사용하였고, 1400℃의 온도에서 24시간 동안 가열한 후 수축률의 변화를 기록하였다.As the shrinkage in FIG. 3, silicon (Si) was used as the metal powder, and the change in shrinkage was recorded after heating at a temperature of 1400 ° C. for 24 hours.
도3을 참조하여 설명하면, 금속분말이 내화단열재에 0% 포함되었을 때, 1400℃에서 내화단열재의 수축률은 3.00이다. 일반적으로 수축률이 2.00을 넘으면 내화단열재로서 사용될 수 없는 상태가 되는 것이 일반적인 기준이므로, 3.00의 상태에서는 내화단열재로서의 특성을 잃어버릴 가능성이 높다.Referring to Figure 3, when the metal powder is included in the refractory insulating material 0%, the shrinkage rate of the refractory insulating material at 1400 ℃ is 3.00. In general, when the shrinkage exceeds 2.00, it is a general criterion to be in a state that cannot be used as a fire insulation, and therefore, the state of 3.00 is likely to lose its characteristics as a fire insulation.
금속분말이 2% 포함되었을 때에는 1.80, 3%에서는 1.30이며, 이후에 금속분말의 비율이 증가할수록 수축률은 점점 낮아지는 것을 알 수 있다. When 2% of the metal powder is included, it is 1.30 and 1.30 at 3%. Then, as the ratio of the metal powder increases, the shrinkage decreases gradually.
내화단열재의 수축을 억제할 수 있는 금속분말의 비율은 1 내지 10 중량%인 것이 바람직하다.It is preferable that the ratio of the metal powder which can suppress the shrinkage of a fireproof heat insulating material is 1 to 10 weight%.
이상에서 설명한 본 발명의 실시예에 따른 내화단열재를 설명하였으나, 본 발명의 권리범위는 이에 제한되지 않으며, 당업자가 용이하게 변형할 수 있는 범위에도 권리가 미친다.Although the fireproof insulation material according to the embodiment of the present invention described above has been described, the scope of the present invention is not limited thereto, and the right of the art can be easily modified.
본 발명에서는 금속분말로 규소 또는 알루미늄을 사용하는 것으로 설명하였으나, 이외에도 고온에서 산화되면서 산소와 결합하여 부피가 커지는 금속(예를 들어 Zr, Cr, Mg 등)이라면 본 발명에 적용될 수 있을 것이다.In the present invention, it was described as using silicon or aluminum as the metal powder, but in addition, if the metal is bulky (for example, Zr, Cr, Mg, etc.) by combining with oxygen while being oxidized at a high temperature, it may be applied to the present invention.
또한 본 발명에서는 무기섬유가 20 내지 50 중량%, 무기바인더가 10 내지 30 중량% 포함되는 것으로 설명하였으나, 내화단열재로서의 특성을 유지하면서 결합력과 강도를 가진 것이라면 그 비율을 변화시킬 수 있을 것이다.In addition, the present invention has been described that the inorganic fiber is contained 20 to 50% by weight, the inorganic binder 10 to 30% by weight, but if it has a bonding strength and strength while maintaining the properties as a refractory insulating material will be able to change the ratio.
본 발명에 따르면 제철소나 압연공장에서 사용되는 고온의 시설에 사용되는 부정형 무기섬유 내화단열재가 고온에서 수축함에 따라 균열, 열전도율 상승 등 문제를 해결하는 효과가 있다.According to the present invention, as the amorphous inorganic fiber refractory insulating material used in a high temperature facility used in a steel mill or a rolling mill shrinks at a high temperature, there is an effect of solving problems such as cracking and heat conductivity increase.
이로 인하여 수명의 연장, 당초의 단열효과를 유지시켜 에너지의 손실을 방지할 수 있는 효과가 있다.Because of this, there is an effect of preventing the loss of energy by extending the life, maintaining the original insulation effect.
도1은 본 발명의 실시예에 따른 내화단열재의 공인시험인증서.Figure 1 is an official test certificate of the fireproof insulation according to an embodiment of the present invention.
도2는 본 발명의 실시예에 따른 내화단열재의 품질비교표.Figure 2 is a quality comparison table of the fireproof insulation according to an embodiment of the present invention.
도3은 내화단열재에 포함되는 금속분말의 비율 변화에 따른 수축률의 변화를 나타낸 그래프.Figure 3 is a graph showing the change in shrinkage rate according to the change in the proportion of the metal powder contained in the refractory insulation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100643344B1 (en) * | 2005-03-09 | 2006-11-10 | 한국지질자원연구원 | Lightweight Insulating Materials for Fireproof Use and manufacturing for it |
| KR101306632B1 (en) * | 2013-05-23 | 2013-09-11 | 주식회사 에코인프라홀딩스 | Spray-type nonflammable insulating material composition and production method and coating method thereof |
| WO2015119987A1 (en) * | 2014-02-04 | 2015-08-13 | Intellectual Gorilla B.V. | Lightweight thermal insulating cement based materials |
| CN108358661A (en) * | 2017-07-01 | 2018-08-03 | 太仓安托建筑材料有限公司 | A kind of light-weight environment-friendly construction material |
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| KR100975274B1 (en) | 2008-01-04 | 2010-08-11 | 송길섭 | Apparatus for manufacturing partitioned panel |
| KR101845753B1 (en) * | 2015-11-06 | 2018-04-05 | 한세로재 주식회사 | Apparatus For Heat Insulation Being Used In High Temperature Circumstance |
| KR101990464B1 (en) | 2017-01-06 | 2019-06-18 | 주식회사 카보랩 | Inorganic binder for high temperature insulating materials, superhigh temperature insulating materials containing the same and Manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100643344B1 (en) * | 2005-03-09 | 2006-11-10 | 한국지질자원연구원 | Lightweight Insulating Materials for Fireproof Use and manufacturing for it |
| KR101306632B1 (en) * | 2013-05-23 | 2013-09-11 | 주식회사 에코인프라홀딩스 | Spray-type nonflammable insulating material composition and production method and coating method thereof |
| WO2014189312A1 (en) * | 2013-05-23 | 2014-11-27 | 주식회사 에코인프라홀딩스 | Spray-type incombustible heat insulator composition, preparation method therefor, and coating method thereof |
| WO2015119987A1 (en) * | 2014-02-04 | 2015-08-13 | Intellectual Gorilla B.V. | Lightweight thermal insulating cement based materials |
| CN108358661A (en) * | 2017-07-01 | 2018-08-03 | 太仓安托建筑材料有限公司 | A kind of light-weight environment-friendly construction material |
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