KR100643344B1 - Lightweight Insulating Materials for Fireproof Use and manufacturing for it - Google Patents
Lightweight Insulating Materials for Fireproof Use and manufacturing for it Download PDFInfo
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- KR100643344B1 KR100643344B1 KR1020050019776A KR20050019776A KR100643344B1 KR 100643344 B1 KR100643344 B1 KR 100643344B1 KR 1020050019776 A KR1020050019776 A KR 1020050019776A KR 20050019776 A KR20050019776 A KR 20050019776A KR 100643344 B1 KR100643344 B1 KR 100643344B1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P20/00—Coating of foodstuffs; Coatings therefor; Making laminated, multi-layered, stuffed or hollow foodstuffs
- A23P20/20—Making of laminated, multi-layered, stuffed or hollow foodstuffs, e.g. by wrapping in preformed edible dough sheets or in edible food containers
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/196—Products in which the original granular shape is maintained, e.g. parboiled rice
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
- A23P30/10—Moulding
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/20—Shapes for preparing foodstuffs, e.g. meat-patty moulding devices, pudding moulds
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Abstract
본 발명은 경량 내화단열재 및 그 제조방법에 관한 것으로, 경량이면서 화재발생시 화재에 견딜 수 있는 내화성을 구비하고 또한 단열성을 보유함으로써 보온 및 보냉역할을 수행할 수 있도록 함을 목적으로 한다.The present invention relates to a lightweight refractory insulating material and a method for manufacturing the same, and to provide a lightweight and refractory to fire in the event of a fire and to maintain insulation and heat insulation.
본 발명에 따른 경량 내화단열재는, 전체 100중량%에 대하여 일반 포틀랜드계 시멘트 40~65 중량%, 무기경량골재 3~20 중량%, 점토류 광물 2~15 중량%, 물 20~40 중량% 및 감수제 0.2~2 중량%로 구성된 슬러리 혼합물로서, 또한 이 슬러리 혼합물의 총 부피에 대하여 제품의 기공율이 20~70 부피%를 점유하면서 조성된다. 이에 의하여, 화재발생시 연기나 유독가스가 발생되지 않고 경량이면서 내화성과 단열성을 구비하여 고온에서 그 형상과 강도를 유지함으로써 화재발생시 인명피해를 감소시키고 재산손실을 방지할 수 있다. Lightweight fireproof insulation according to the present invention, 40 to 65% by weight of general Portland cement, 3 to 20% by weight inorganic lightweight aggregate, 2 to 15% by weight of clay mineral, 20 to 40% by weight of water and A slurry mixture consisting of 0.2 to 2% by weight of a reducing agent, which is also formulated with a porosity of 20 to 70% by volume relative to the total volume of the slurry mixture. As a result, smoke or toxic gas is not generated in the event of a fire, and it is light in weight, has fire resistance and heat insulation, and maintains its shape and strength at a high temperature, thereby reducing casualties and preventing property loss during a fire.
경량 무기물, 내화단열재, 무기점결제, 점토류 광물 Lightweight minerals, fireproof insulation, inorganic binders, clay minerals
Description
본 발명은 화재에 견딜 수 있는 내화성 및 내열성을 구비하고 단열성을 갖고 있는 경량 내화단열재 및 그 제조방법에 관한 것으로서, 더욱 상세하게는 각종 화재발생시 연기나 유독가스가 발생되지 않고 상온 및 고온에서 형상과 강도를 유지함으로써 인명피해를 감소시키고 재산손실을 최소화할 수 있으며 점토류 광물을 활용하면서 단열성을 구비한 경량 내화단열재 및 그 제조방법에 관한 것이다.The present invention relates to a lightweight fire insulating material having fire resistance and heat resistance and heat insulation capable of withstanding fire, and a method of manufacturing the same. More specifically, the present invention relates to a shape and fire at room temperature and high temperature without generating smoke or toxic gas during various fires. The present invention relates to a lightweight fireproof heat insulating material having a thermal insulation while reducing the damage to human life and minimizing property loss by maintaining strength, and using a clay mineral.
일반적으로, 현재 사용되는 주거용, 업무용 및 산업용 건물 등에는 각종 내외장 판넬을 필요로 하고 있다.In general, currently used residential, business and industrial buildings require various interior and exterior panels.
이러한 판넬에는 지금까지 심재가 폴리스티렌폼이나 폴리우레탄폼으로 구성된 복합판넬이 주로 사용되어 왔다. 상기와 같은 재질로 이루어진 복합판넬은 우수한 단열성능을 가지고 있지만 불연성이 아니고 내열성이 나빠서 화재발생시 심재가 연소하면서 인체에 유해한 연기와 유독가스가 발생하고, 형태유지가 곤란하므로 판넬이 붕괴되어 인명피해와 재산손실을 야기하고 있는 실정이다.In such a panel, a composite panel composed of polystyrene foam or polyurethane foam has been mainly used until now. The composite panel made of the above materials has excellent heat insulation performance, but it is non-combustible and has poor heat resistance. In case of fire, the core material burns and harmful smoke and toxic gas are generated. It is causing the loss of property.
최근에는, 상기와 같은 판넬의 문제점을 해결하기 위하여 내화성 및 불연성을 구비한 암면이나 유리면 특히 유리면을 심재로 한 복합판넬이 시판되고 있는 실정이다. 이러한 유리면 등을 이용한 복합판넬은, 화재발생시 연기나 유독가스가 발생치 않고 어느 정도 내열성이 유지되어서 판넬이 붕괴되지 않는 현상을 나타내고 있다.Recently, in order to solve the problems of the panel, a composite panel having a rock surface or a glass surface, in particular, a glass surface having fire resistance and incombustibility, is commercially available. The composite panel using such a glass surface exhibits a phenomenon in which the panel does not collapse because smoke or toxic gas is not generated during fire and the heat resistance is maintained to some extent.
그러나 상기 복합판넬의 심재로 사용되는 암면과 유리면은 그 자체의 내열온도(각각 약 900℃ 및 700℃)가 낮아서 두께가 두껍고 무엇보다도 장기적으로는 인체에 대한 암발생의 위험성이 계속 제기되고 있고, 단기적으로는 피부에 접촉시 가려움증을 유발하고 호흡기질환의 문제점을 야기하고 있어서 현장 작업자들이 취급을 꺼려하고 있다.However, the rock wool and glass wool used as core materials of the composite panel have a low heat resistance temperature (about 900 ° C. and 700 ° C., respectively), so that the thickness is thick and, above all, the risk of cancer in humans continues to be raised. In the short term, the skin workers are reluctant to handle it because it causes itching and respiratory problems.
본 발명은 상기한 종래 문제점을 해결하기 위한 것으로서, 불연성이므로 화재발생시 인체에 유해한 연기나 유독가스가 발생치 않고 피부 접촉시 문제를 야기하지 않으며 암 발생의 위험성도 전혀 없고 내화단열재 자체의 내열도가 약1100℃ 이상으로 높으며 단열성을 구비하고 있어서 각종 복합 판넬 특히 은행 등에서 현금이나 수표와 같은 귀중품을 보관하는 금고실 및 문서고의 벽체 및 지붕재의 심재와 각종 칸막이용 심재로서 사용될 수 있는 경량 내화단열재 및 그 제조방법를 제공하는데 있다.The present invention is to solve the above-mentioned conventional problems, because it is nonflammable, it does not cause harmful smoke or toxic gas to the human body during fire occurrence, does not cause problems when contacting the skin, there is no risk of cancer, and the heat resistance of the fire insulation material itself is weak. Light weight fire insulation material which can be used as core material of wall and roof material and various partition material of vault room and archives that store valuable items such as cash or check in various composite panels, especially banks, etc. It is to provide a manufacturing method.
또한 본 발명의 다른 목적은, 국내에 부존량이 풍부한 점토류 광물 특히 황 토를 첨가함으로써 상온 및 고온강도를 제고시키고 원적외선이 방사되는 환경기능성을 제공하려는데 있다.In addition, another object of the present invention is to improve the room temperature and high temperature strength by adding clay minerals, especially loess, rich in abundance in Korea, and to provide environmental functionality in which far-infrared rays are radiated.
상술한 바와 같은 목적을 달성하기 위한 본 발명에 따른 경량 내화단열재는, 일반 포틀랜드계 시멘트, 무기경량골재, 점토류 광물, 물 및 감수제가 혼합되어 이루어지며, 이 혼합물에 기포가 첨가되어 이루어지는 것을 특징으로 한다.Lightweight fire insulation material according to the present invention for achieving the above object is made of a mixture of general Portland cement, inorganic lightweight aggregate, clay mineral, water and water reducing agent, characterized in that the bubble is added to the mixture. It is done.
본 발명의 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.
본 발명에 따른 경량 내화단열재는, 포틀랜드계 시멘트 40~65 중량%, 무기경량골재 3~20 중량%, 점토류 광물 2~15 중량%, 물 20~40 중량% 및 감수제 0.2~2 중량%가 혼합된 혼합물 100 부피%에 대하여 기공율이 20~70부피%가 되도록 조성되어 이루어진다.Lightweight fireproof insulation according to the present invention, 40 to 65% by weight of Portland cement, 3 to 20% by weight of inorganic lightweight aggregate, 2 to 15% by weight of clay mineral, 20 to 40% by weight of water and 0.2 to 2% by weight of water reducing agent It is composed so that the porosity is 20 to 70% by volume with respect to 100% by volume of the mixed mixture.
상기 포틀랜드계 시멘트는 시중에서 많이 사용되는 보통 시멘트를 지칭한다.The portland cement refers to ordinary cement that is commonly used in the market.
상기 무기경량골재는 무기물이면서 경량인 골재를 지칭하고 시라스 발룬, 질석 및 글라스 발룬의 3종 중에서 선택된 1종 이상을 포함한 것으로서 그 크기는 약 5mm 이하이며 3 중량% 이하로 첨가시 내화성이 나쁘고 20 중량% 이상을 첨가시 제품의 강도가 낮아지는 문제점이 대두된다. 여기서 두 개 이상의 무기경량골재가 혼합될 경우 각 골재의 성분이 유사하므로 혼합되는 골재의 혼합량은 무기경량골재의 첨가량 범위내에서 자유롭게 변경 가능하다.The inorganic lightweight aggregate refers to an inorganic and lightweight aggregate and includes at least one selected from three kinds of syras balun, vermiculite and glass balun, the size of which is about 5 mm or less, and when added to 3 wt% or less, the fire resistance is bad and 20 weight When more than% is added, the problem of lowering the strength of the product arises. Here, when two or more inorganic lightweight aggregates are mixed, the components of each aggregate are similar, so that the mixing amount of the aggregates to be mixed can be freely changed within the range of addition amount of the inorganic lightweight aggregate.
상기 점토류광물은 국내에 다량으로 산재돼있는 점토나 고령토를 나타내며 그 크기는 약 3mm 이하, 특히 1mm 이하인 미분말이 적당하다. 이러한 점토류광물은 원적외선을 방사하고 습도를 조절하는 것과 같은 환경기능성을 구비하고 있으며 아울러 제품의 상온 및 고온강도를 제고시키는 역할을 담당하게 된다. 첨가량에 있어서 2 중량% 이하로 첨가시 너무 소량이어서 상기 효과를 기대할 수 없으며 15 중량% 이상 첨가시 제품의 비중이 증가하는 단점이 있다. The clay minerals represent clays or kaolins scattered in large quantities in Korea, and the fine powders of which the size is about 3 mm or less, especially 1 mm or less are suitable. These clay minerals have environmental functions such as emitting far infrared rays and controlling humidity, and also play a role of enhancing the room temperature and high temperature strength of the product. When added in an amount of less than 2% by weight is too small, the effect can not be expected, there is a disadvantage that the specific gravity of the product increases when added over 15% by weight.
그리고 상기 감수제는 혼합물의 유동성을 제고시키므로 물 첨가량을 감소시킬 수 있어서 혼합물의 건조경화시간을 단축시키는 역할을 수행하며, 나프탈렌계, 멜라민계 및 폴리카보네이트계 중 선택된 하나가 사용되고, 그 첨가량은 0.2~2 중량%로서 0.2 중량% 이하로 첨가시 상기 효과가 미미하며 2 중량% 이상 첨가시 가격상승의 요인이 된다. And the water reducing agent to improve the fluidity of the mixture can reduce the amount of water added to serve to shorten the drying curing time of the mixture, one selected from naphthalene-based, melamine-based and polycarbonate-based, the addition amount is 0.2 ~ When added as 0.2% by weight or less as 2% by weight, the above effect is insignificant, and when added by 2% by weight or more, it causes a price increase.
마지막으로 혼합물에 기포를 장입하여 제품인 경량 내화단열재의 기공율이 20~70 부피%가 되도록 조절하고 기공은 식물성 또는 동물성 기포에 의해서 형성하게 된다. 여기서 기공율이 20 부피% 이하이면 제품의 강도는 증가하지만 비중이 증가하게 되며 기공율이 70 부피% 이상이 되면 제품의 비중이 낮아져서 좋지만 강도가 너무 낮아지는 문제점이 대두된다.Finally, by charging the air bubbles in the mixture, the porosity of the lightweight fireproof insulation, which is a product, is adjusted to 20 to 70% by volume, and the pores are formed by vegetable or animal bubbles. If the porosity is less than 20% by volume, the strength of the product is increased but the specific gravity is increased. If the porosity is more than 70% by volume, the specific gravity of the product is low, but the strength is too low.
한편, 본 발명의 경량 내화단열재를 제조하기 위한 제조방법을 설명하면 다음과 같다. On the other hand, the manufacturing method for manufacturing the lightweight fireproof insulation of the present invention will be described.
(S10) 포틀랜드계 시멘트, 무기 경량골재 및 점토류 광물을 교반기에 투입하여 교반 혼합한다.(S10) Portland cement, inorganic lightweight aggregate and clay minerals are added to the stirrer and mixed.
(S20) 물에 감수제를 첨가하여 골고루 섞이도록 혼합한다. 여기서 상기 단계 (S10)과 (S20)은 그 순서가 바뀌어도 무방하다.(S20) Add water reducing agent and mix to mix evenly. Here, the steps (S10) and (S20) may be changed in order.
(S30) 상기 단계 (S10)과 단계 (S20)에 의한 고상 및 액상 혼합물을 균질한 조성이 되도록 혼합한다.(S30) The solid and liquid mixtures of step (S10) and step (S20) are mixed to have a homogeneous composition.
(S40) 상기 단계(S30) 단계에서 혼합된 혼합물에 기포를 적당한 부피만큼 첨가하여 최종 슬러리 혼합물을 제조한다.(S40) By adding an appropriate volume of bubbles to the mixture mixed in the step (S30) step to prepare a final slurry mixture.
(S50) 최종 슬러리 혼합물을 적당한 형태의 성형틀에 장입하여 약 7일 이상 상온에 방치시켜서 건조 경화시킴으로써 본 발명에 의한 경량 내화단열재를 완성한다.(S50) The final slurry mixture is charged into a mold of a suitable form, left to stand at room temperature for at least 7 days, and dried to complete the lightweight fireproof insulation according to the present invention.
이하, 본 발명에 따른 경량 내화단열재의 실시예를 구체적으로 설명한다.Hereinafter, embodiments of the lightweight fireproof insulation according to the present invention will be described in detail.
< 실시예 1 ><Example 1>
최대 입자크기가 약 2mm인 질석 8 중량%, 일반 포틀랜드 시멘트 48 중량% 그리고 평균 입도가 약 100㎛인 점토 11 중량%를 순차적으로 혼합기에 첨가, 혼합해서 분말 혼합물을 제조하였다. 다음에 물 32.3 중량%에 감수제 0.7 중량%를 첨가, 혼합한 액상 혼합물을 상기 분말 혼합물에 첨가 혼합해서 균질한 슬러리를 제조한 다음 상기 슬러리 부피%에 대해 약 40부피%의 기공율을 갖도록 상기 슬러리 부피에 대하여 기포를 첨가, 혼합하였다. 그 다음 미리 준비된 성형틀에 주입한 후 약 10 일 이상 상온방치시켜서 건조경화시켰으며 판재 크기는 300×300×10 t cm 이었고 비중은 0.87이었다. 내화시험(KS F 2257-1)을 행한 결과, 3시간 내화에 충분히 합격하는 내화단열성을 나타내었다.8% by weight of vermiculite having a maximum particle size of about 2 mm, 48% by weight of general Portland cement, and 11% by weight of clay having an average particle size of about 100 μm were sequentially added to the mixer and mixed to prepare a powder mixture. Next, 0.7 wt% of a water reducing agent was added to 32.3 wt% of water, and the mixed liquid mixture was added to the powder mixture to be mixed to prepare a homogeneous slurry, and the slurry volume was about 40% by volume relative to the volume of the slurry. Bubbles were added to and mixed with each other. Then, the product was injected into a mold prepared in advance, and then dried at room temperature for at least 10 days. The plate size was 300 × 300 × 10 t cm and the specific gravity was 0.87. As a result of performing a fire resistance test (KS F 2257-1), it showed fire resistance insulation sufficiently passing the fire resistance for 3 hours.
< 실시예 2 ><Example 2>
역시 최대 입자크기가 약 2mm인 질석 12 중량%, 일반 포틀랜드 시멘트 43 중량% 및 평균 입도가 약 100㎛인 점토 10 중량%를 차례대로 혼합기에 첨가, 혼합해서 균질한 분말 혼합물을 제조하였다. 그 다음에 물 34 중량%에 감수제 1 중량%를 첨가 혼합해서 액상 혼합물을 만든 다음 상기 분말 혼합물에 첨가, 철저히 혼합해서 균질한 슬러리 혼합물을 제조한 후 이 슬러리 부피%에 대하여 약 55부피%의 기공율을 갖도록 기포를 첨가하여 혼합물을 제조하였다. 다음에는 이 혼합물을 성형틀(300×300cm 크기)에 약 10 t cm의 두께로 주입한 후 약 10일 이상 상온경화시켜서 내화시험을 수행한 결과 3시간 내화시험에 합격하였으며 내화단열재의 비중은 약 0.82이었다.Also, 12 wt% vermiculite having a maximum particle size of about 2 mm, 43 wt% of ordinary Portland cement, and 10 wt% of clay having an average particle size of about 100 μm were sequentially added to the mixer and mixed to prepare a homogeneous powder mixture. Then, 34% by weight of water is mixed with 1% by weight of a water reducing agent to form a liquid mixture, which is then added to the powder mixture and thoroughly mixed to form a homogeneous slurry mixture. The mixture was prepared by adding bubbles to have. Next, the mixture was injected into a mold (300 × 300cm size) at a thickness of about 10 t cm, and then fired at room temperature for at least 10 days. 0.82.
이상에서 설명한 바와 같이, 본 발명에 의한 경량 내화 단열재 및 그 제조방법에 의하면, 조성물의 대부분이 무기물로만 이루어져 있어서 화재발생시 인체에 유해한 연기나 유독가스가 발생하지 않으면서 약 1100℃ 정도의 고온에서 판재의 변형이나 균열 및 파괴 등의 결함이 없고 수축률이나 팽창률이 약 1% 이내로 유지 됨으로써 화재에 대비하여 물성이 우수한 내화단열재로 활용될 수 있다. As described above, according to the lightweight fireproof insulation and the method for producing the same according to the present invention, since most of the composition is made of only inorganic materials, the board at a high temperature of about 1100 ℃ without generating harmful smoke or toxic gas at the time of fire It does not have defects such as deformation, cracking, and destruction, and its shrinkage rate or expansion rate is maintained within about 1%, and thus it can be utilized as a fireproof insulating material having excellent physical properties against fire.
또한 국내에 매장량이 풍부한 점토 및 고령토 특히 저품위 고령토 등을 활용함으로써 상온 및 고온 강도를 높이고 국내자원의 부가가치를 제고할 수 있는 효과가 있다.In addition, the use of clay and kaolin, especially low-grade kaolin, which have abundant reserves in Korea, can increase the strength of room temperature and high temperature and enhance the added value of domestic resources.
이상, 본 발명을 본 발명의 원리를 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 그와 같이 도시되고 설명된 그대로의 구성 및 작용으로 한정되는 것이 아니다. 오히려, 첨부된 청구범위의 사상 및 범주를 일탈함이 없이 본 발명에 대한 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서, 그러한 모든 적절한 변경 및 수정과 균등물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다.While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.
Claims (4)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104671717A (en) * | 2015-02-06 | 2015-06-03 | 哈尔滨工业大学深圳研究生院 | Hazardous waste carbonization/solidification treatment technique |
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| JPH01278445A (en) * | 1988-05-02 | 1989-11-08 | Furukawa Electric Co Ltd:The | Fireproofing composition |
| JPH072559A (en) * | 1991-06-28 | 1995-01-06 | Dowa Iron Powder Co Ltd | Refractory and heat-insulating composition |
| KR19990085310A (en) * | 1998-05-15 | 1999-12-06 | 손연호 | Fireproof and Sound Absorbing Coating Composition |
| KR20010001186A (en) * | 1999-06-02 | 2001-01-05 | 손연호 | Fireproofing and sound-absorbing composition |
| KR20010056000A (en) * | 1999-12-14 | 2001-07-04 | 곽영훈 | Fire-resistant insulation materials |
| KR20030068387A (en) * | 2002-02-13 | 2003-08-21 | 기후켄 | A refractory insulating material for microwave calcining furnace |
| KR20030086199A (en) * | 2002-05-03 | 2003-11-07 | 삼손퍼라이트 주식회사 | Covering composite for fire resistance and sound absorption |
| KR20050092485A (en) * | 2004-03-16 | 2005-09-22 | 이병규 | Unshrinking high temperature light weight refractory containing metal powder |
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2005
- 2005-03-09 KR KR1020050019776A patent/KR100643344B1/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01278445A (en) * | 1988-05-02 | 1989-11-08 | Furukawa Electric Co Ltd:The | Fireproofing composition |
| JPH072559A (en) * | 1991-06-28 | 1995-01-06 | Dowa Iron Powder Co Ltd | Refractory and heat-insulating composition |
| KR19990085310A (en) * | 1998-05-15 | 1999-12-06 | 손연호 | Fireproof and Sound Absorbing Coating Composition |
| KR20010001186A (en) * | 1999-06-02 | 2001-01-05 | 손연호 | Fireproofing and sound-absorbing composition |
| KR20010056000A (en) * | 1999-12-14 | 2001-07-04 | 곽영훈 | Fire-resistant insulation materials |
| KR20030068387A (en) * | 2002-02-13 | 2003-08-21 | 기후켄 | A refractory insulating material for microwave calcining furnace |
| KR20030086199A (en) * | 2002-05-03 | 2003-11-07 | 삼손퍼라이트 주식회사 | Covering composite for fire resistance and sound absorption |
| KR20050092485A (en) * | 2004-03-16 | 2005-09-22 | 이병규 | Unshrinking high temperature light weight refractory containing metal powder |
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| CN104671717A (en) * | 2015-02-06 | 2015-06-03 | 哈尔滨工业大学深圳研究生院 | Hazardous waste carbonization/solidification treatment technique |
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