A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INSULATING FIRE BRICK
PROBLEM TO BE SOLVED: To provide insulating fire brick maintaining heat insulation property at high temperature and furthermore having light weight and high strength, and low heat conductivity under high temperature.SOLUTION: There is provided the insulating fire brick which is constituted of: a porous sintered body that is a spinel composed of a chemical formula XAlO, where X is one of Zn, Fe, Mg, Ni and Mn; and an aggregate composed of an inorganic material other than the porous sintered body and which has a porosity of 60% or more. In the insulating fire brick, pore having a pore diameter of over 1000 μm accounts for 10 vol% or less of the whole pores, pore having a pore diameter of 0.01 to 0.8 μm accounts for 10 to 30 vol% of the pore having a pore diameter of 1000 μm or less and pore having a pore diameter of 0.8 to 10 μm accounts for 30 to 70 vol% of the pore having a pore diameter of 1000 μm.SELECTED DRAWING: None
【課題】高温での断熱特性を維持しつつ、軽量で高強度で、高温下での熱伝導率の低い、耐火断熱れんがを提供する。【解決手段】化学式ＸＡｌ2Ｏ4からなるスピネル質で前記化学式中のＸがＺｎ、Ｆｅ、Ｍｇ、Ｎｉ及びＭｎのうちのいずれかである多孔質焼結体と、前記多孔質焼結体以外の無機材料から成る骨材から構成される耐火断熱れんがであって、気孔率が６０％以上であり、孔径１０００μｍ超の気孔が全気孔の内１０ｖｏｌ％以下であり、孔径１０００μｍ以下の気孔の内、孔径０．０１〜０．８μｍの気孔が前記孔径１０００μｍ以下の気孔の１０〜３０ｖｏｌ％、孔径０．８〜１０μｍの気孔が前記孔径１０００μｍ以下の気孔の３０〜７０ｖｏｌ％を占める耐火断熱れんが。【選択図】なし
INSULATING FIRE BRICK
PROBLEM TO BE SOLVED: To provide insulating fire brick maintaining heat insulation property at high temperature and furthermore having light weight and high strength, and low heat conductivity under high temperature.SOLUTION: There is provided the insulating fire brick which is constituted of: a porous sintered body that is a spinel composed of a chemical formula XAlO, where X is one of Zn, Fe, Mg, Ni and Mn; and an aggregate composed of an inorganic material other than the porous sintered body and which has a porosity of 60% or more. In the insulating fire brick, pore having a pore diameter of over 1000 μm accounts for 10 vol% or less of the whole pores, pore having a pore diameter of 0.01 to 0.8 μm accounts for 10 to 30 vol% of the pore having a pore diameter of 1000 μm or less and pore having a pore diameter of 0.8 to 10 μm accounts for 30 to 70 vol% of the pore having a pore diameter of 1000 μm.SELECTED DRAWING: None
【課題】高温での断熱特性を維持しつつ、軽量で高強度で、高温下での熱伝導率の低い、耐火断熱れんがを提供する。【解決手段】化学式ＸＡｌ2Ｏ4からなるスピネル質で前記化学式中のＸがＺｎ、Ｆｅ、Ｍｇ、Ｎｉ及びＭｎのうちのいずれかである多孔質焼結体と、前記多孔質焼結体以外の無機材料から成る骨材から構成される耐火断熱れんがであって、気孔率が６０％以上であり、孔径１０００μｍ超の気孔が全気孔の内１０ｖｏｌ％以下であり、孔径１０００μｍ以下の気孔の内、孔径０．０１〜０．８μｍの気孔が前記孔径１０００μｍ以下の気孔の１０〜３０ｖｏｌ％、孔径０．８〜１０μｍの気孔が前記孔径１０００μｍ以下の気孔の３０〜７０ｖｏｌ％を占める耐火断熱れんが。【選択図】なし
INSULATING FIRE BRICK
耐火断熱れんが
AKAMINE SHUKO (author) / FUJITA MITSUHIRO (author)
2016-03-07
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
Tandem suspension type fire-resistant heat-insulating brick
| European Patent Office | 2021