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HEAT PROOF CLAY RAW MATERIAL AND HEAT PROOF CERAMIC
To provide a heat proof clay raw material which can be produced at a low cost without largely depending on conventional petalite that is expensive and has limited supply regions, and is used as a raw material of heat proof ceramic with low expansion and high heat resistance regardless of the firing conditions, and provide heat proof ceramic obtained as a firing body of the heat proof clay raw material.SOLUTION: A heat proof clay raw material contains clay and a low expansion material as main constituents. The low expansion material is composed of any one combination including (1) only molten quartz, (2) the molten quartz and petalite, (3) the molten quartz and cordierite, and (4) the molten quartz, the petalite, and the cordierite. In 100 pts.mass of the total amount of the clay and the low expansion material as the main constituents, the clay is 10 to 70 pts.mass and the balance is the low expansion material. A firing body obtained by oxidation firing of this heat proof clay raw material and a firing body obtained by reduction firing thereof have a thermal expansion coefficient of 0.1 to 4.0×10/K at a room temperature to 700°C.SELECTED DRAWING: None
【課題】従来の高価で供給地が偏重しているペタライトに大きく依存することなく低コストで製造可能であり、かつ、焼成条件に関わらず低膨張で高い耐熱性を備える耐熱陶磁器の原料となる耐熱粘土原料、および、この耐熱粘土原料の焼成体として得られる耐熱陶磁器を提供する。【解決手段】粘土および低膨張材を主成分とする耐熱粘土原料であり、低膨張材は、（１）溶融石英のみ、（２）溶融石英とペタライト、（３）溶融石英とコーディエライト、（４）溶融石英とペタライトとコーディエライト、のいずれかの組み合わせで構成され、主成分である粘土と低膨張材との合計１００質量部において、粘土が１０〜７０質量部であり、残部が前記低膨張材であり、この耐熱粘土原料の酸化焼成による焼成体および還元焼成による焼成体は、室温から７００℃における熱膨張係数が０．１〜４．０×１０-6／Ｋである。【選択図】なし
HEAT PROOF CLAY RAW MATERIAL AND HEAT PROOF CERAMIC
To provide a heat proof clay raw material which can be produced at a low cost without largely depending on conventional petalite that is expensive and has limited supply regions, and is used as a raw material of heat proof ceramic with low expansion and high heat resistance regardless of the firing conditions, and provide heat proof ceramic obtained as a firing body of the heat proof clay raw material.SOLUTION: A heat proof clay raw material contains clay and a low expansion material as main constituents. The low expansion material is composed of any one combination including (1) only molten quartz, (2) the molten quartz and petalite, (3) the molten quartz and cordierite, and (4) the molten quartz, the petalite, and the cordierite. In 100 pts.mass of the total amount of the clay and the low expansion material as the main constituents, the clay is 10 to 70 pts.mass and the balance is the low expansion material. A firing body obtained by oxidation firing of this heat proof clay raw material and a firing body obtained by reduction firing thereof have a thermal expansion coefficient of 0.1 to 4.0×10/K at a room temperature to 700°C.SELECTED DRAWING: None
【課題】従来の高価で供給地が偏重しているペタライトに大きく依存することなく低コストで製造可能であり、かつ、焼成条件に関わらず低膨張で高い耐熱性を備える耐熱陶磁器の原料となる耐熱粘土原料、および、この耐熱粘土原料の焼成体として得られる耐熱陶磁器を提供する。【解決手段】粘土および低膨張材を主成分とする耐熱粘土原料であり、低膨張材は、（１）溶融石英のみ、（２）溶融石英とペタライト、（３）溶融石英とコーディエライト、（４）溶融石英とペタライトとコーディエライト、のいずれかの組み合わせで構成され、主成分である粘土と低膨張材との合計１００質量部において、粘土が１０〜７０質量部であり、残部が前記低膨張材であり、この耐熱粘土原料の酸化焼成による焼成体および還元焼成による焼成体は、室温から７００℃における熱膨張係数が０．１〜４．０×１０-6／Ｋである。【選択図】なし
HEAT PROOF CLAY RAW MATERIAL AND HEAT PROOF CERAMIC
耐熱粘土原料および耐熱陶磁器
UCHIYAMA YUKICHI (author) / UCHIYAMA TAKAFUMI (author)
2019-08-22
Patent
Electronic Resource
Japanese
| European Patent Office | 2024
Heat-proof and heat-insulating material and preparation method thereof
| European Patent Office | 2021