A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIGHT WEIGHT THERMAL INSULATION ALUMINA AND MAGNESIA REFRACTORY
PROBLEM TO BE SOLVED: To provide a light weight thermal insulation alumina and magnesia refractory excellent in slab infiltration resistance and capable of making low thermal conductive while securing corrosion resistance and a manufacturing method therefor.SOLUTION: There are provided a light weight thermal insulation alumina and magnesia refractory having a chemical composition of AlOof 65 to 94.7 mass%, MgO of 4 to 20 mass%, SiOof 1 to 5 mass%, total amount of NaO and KO of 0.3 to 2 mass% and other component of 8 mass% or less (including 0%) manufactured by molding a raw material blended article by blending hollow alumina of 2 to 50 mass%, alumina raw material other than the hollow alumina of 20 to 93.5 mass%, magnesia raw material of 4 to 20 mass%, sodium silicate of 0.5 to 6 mass% to a predetermined shape at molding pressure of 1.2 to 3.0 ton/cmand a manufacturing method therefor.
【課題】耐スラグ浸潤性に優れ、かつ耐食性を担保しながら低熱伝導率化することができる軽量断熱アルミナ・マグネシア質耐火物及びその製造方法を提供する。【解決手段】中空アルミナを２〜５０質量％、中空アルミナ以外のアルミナ質原料を２０〜９３．５質量％、マグネシア質原料を４〜２０質量％、珪酸ナトリウムを０．５〜６質量％の量で配合してなる原料配合物を成形圧力１．２〜３．０トン／ｃｍ２で所定の形状に成形し、当該方法により得られた軽量断熱アルミナ・マグネシア質耐火物は、Ａｌ２Ｏ３６５〜９４．７質量％、ＭｇＯ４〜２０質量％、ＳｉＯ２１〜５質量％、Ｎａ２ＯとＫ２Ｏの合計量０．３〜２質量％、その他成分８質量％以下（ゼロを含む）の化学組成を有する軽量断熱アルミナ・マグネシア質耐火物とその製造方法。【選択図】なし
LIGHT WEIGHT THERMAL INSULATION ALUMINA AND MAGNESIA REFRACTORY
PROBLEM TO BE SOLVED: To provide a light weight thermal insulation alumina and magnesia refractory excellent in slab infiltration resistance and capable of making low thermal conductive while securing corrosion resistance and a manufacturing method therefor.SOLUTION: There are provided a light weight thermal insulation alumina and magnesia refractory having a chemical composition of AlOof 65 to 94.7 mass%, MgO of 4 to 20 mass%, SiOof 1 to 5 mass%, total amount of NaO and KO of 0.3 to 2 mass% and other component of 8 mass% or less (including 0%) manufactured by molding a raw material blended article by blending hollow alumina of 2 to 50 mass%, alumina raw material other than the hollow alumina of 20 to 93.5 mass%, magnesia raw material of 4 to 20 mass%, sodium silicate of 0.5 to 6 mass% to a predetermined shape at molding pressure of 1.2 to 3.0 ton/cmand a manufacturing method therefor.
【課題】耐スラグ浸潤性に優れ、かつ耐食性を担保しながら低熱伝導率化することができる軽量断熱アルミナ・マグネシア質耐火物及びその製造方法を提供する。【解決手段】中空アルミナを２〜５０質量％、中空アルミナ以外のアルミナ質原料を２０〜９３．５質量％、マグネシア質原料を４〜２０質量％、珪酸ナトリウムを０．５〜６質量％の量で配合してなる原料配合物を成形圧力１．２〜３．０トン／ｃｍ２で所定の形状に成形し、当該方法により得られた軽量断熱アルミナ・マグネシア質耐火物は、Ａｌ２Ｏ３６５〜９４．７質量％、ＭｇＯ４〜２０質量％、ＳｉＯ２１〜５質量％、Ｎａ２ＯとＫ２Ｏの合計量０．３〜２質量％、その他成分８質量％以下（ゼロを含む）の化学組成を有する軽量断熱アルミナ・マグネシア質耐火物とその製造方法。【選択図】なし
LIGHT WEIGHT THERMAL INSULATION ALUMINA AND MAGNESIA REFRACTORY
軽量断熱アルミナ・マグネシア質耐火物
IGABO KOICHI (author) / TOMITANI NAOSHI (author)
2015-12-07
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
DURABILITY EVALUATION METHOD FOR ALUMINA-MAGNESIA CASTABLE REFRACTORY
| European Patent Office | 2019