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SILICEOUS REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide a refractory brick more suitable for the lining of a coke oven, and a method for producing the same.SOLUTION: Provided is a siliceous refractory brick characterized in that the composition of raw materials is composed of a molten quartz material of 85 to 95 wt.%, a quartz material of 5 to 15 wt.% and a clay material including at least a half quantity of bentonite of 3 to 5 wt.%. The firing temperature in its production method is 1,000 to 1,300°C. Regarding the refractory brick as a product, its porosity is 20% or lower, its compressive strength is 25 MPa or lower, and its hot thermal expansion when being heated from 20°C to 1,000°C reaches 0.5% or lower.SELECTED DRAWING: None
【課題】コークス炉の内張りにより好適な耐火煉瓦とその製造方法とを提供すること。【解決手段】本発明の珪石質耐火煉瓦では、原料の組成が、溶融石英質材８５〜９５重量％と、石英質材５〜１５重量％と、少なくとも半量のベントナイトを含む粘土質材３〜５重量％とであることを特徴とする。その製造方法での焼成温度は、１０００〜１３００℃である。製品としての耐火煉瓦は、その気孔率が２０％以下であり、その圧縮強さが２５ＭＰａ以上であって、２０℃から１０００℃まで加熱した際のその熱間線膨張は０．５％以下になる。【選択図】なし
SILICEOUS REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide a refractory brick more suitable for the lining of a coke oven, and a method for producing the same.SOLUTION: Provided is a siliceous refractory brick characterized in that the composition of raw materials is composed of a molten quartz material of 85 to 95 wt.%, a quartz material of 5 to 15 wt.% and a clay material including at least a half quantity of bentonite of 3 to 5 wt.%. The firing temperature in its production method is 1,000 to 1,300°C. Regarding the refractory brick as a product, its porosity is 20% or lower, its compressive strength is 25 MPa or lower, and its hot thermal expansion when being heated from 20°C to 1,000°C reaches 0.5% or lower.SELECTED DRAWING: None
【課題】コークス炉の内張りにより好適な耐火煉瓦とその製造方法とを提供すること。【解決手段】本発明の珪石質耐火煉瓦では、原料の組成が、溶融石英質材８５〜９５重量％と、石英質材５〜１５重量％と、少なくとも半量のベントナイトを含む粘土質材３〜５重量％とであることを特徴とする。その製造方法での焼成温度は、１０００〜１３００℃である。製品としての耐火煉瓦は、その気孔率が２０％以下であり、その圧縮強さが２５ＭＰａ以上であって、２０℃から１０００℃まで加熱した際のその熱間線膨張は０．５％以下になる。【選択図】なし
SILICEOUS REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
珪石質耐火煉瓦およびその製造方法
INOUE MASAKAZU (author) / ARIGA KIKUO (author) / SASAKI KENICHI (author)
2018-09-06
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
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