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High zirconia electrocast refractory
The purpose of the present invention is to provide a high-zirconia electrofusion cast refractory which suppresses seam opening in a contact portion between refractory bodies, suppresses the formation of zircon crystals, does not have an extreme increase in the residual volume expansion coefficient even if zircon crystals are formed, and has high corrosion resistance to glass, and more specifically, to provide a high-zirconia electrofusion cast refractory which contains, as a chemical component, a binder and a binder. The total content of ZrO2 and HfO2 is more than 80 mass% and 92 mass% or less, the content of Al2O3 is 0.2-3.0 mass%, the content of SiO2 is 1.5-10 mass%, the content of Na2O is 0.05-2.0 mass%, the content of K2O is 1.0 mass% or less, the content of B2O3 is 0-1.5 mass%, the content of Y2O3 is more than 4.0 mass% and 9.0 mass% or less, the total content of MgO and CaO is 0.02-0.4 mass%, the content of CaO is 0.01 mass% or more, the total content of Fe2O3 and TiO2 is 0.5 mass% or less, and the content of P2O5 is 0.04 mass% or less.
本发明的目的在于提供高氧化锆电熔铸耐火物，其在耐火物之间的接触部抑制接缝的开口，抑制锆石晶体的生成，即使锆石晶体生成，残存体积膨胀率也不极端地变大，对于玻璃的耐蚀性高，涉及高氧化锆电熔铸耐火物，其中，作为化学成分，ZrO2与HfO2的合计为超过80质量％且92质量％以下，Al2O3为0.2～3.0质量％，SiO2为1.5～10质量％，Na2O为0.05～2.0质量％，K2O为1.0质量％以下，B2O3为0～1.5质量％，Y2O3为超过4.0质量％且9.0质量％以下，MgO与CaO的合计为0.02～0.4质量％，CaO为0.01质量％以上，Fe2O3与TiO2的合计为0.5质量％以下，P2O5的含量为0.04质量％以下。
High zirconia electrocast refractory
The purpose of the present invention is to provide a high-zirconia electrofusion cast refractory which suppresses seam opening in a contact portion between refractory bodies, suppresses the formation of zircon crystals, does not have an extreme increase in the residual volume expansion coefficient even if zircon crystals are formed, and has high corrosion resistance to glass, and more specifically, to provide a high-zirconia electrofusion cast refractory which contains, as a chemical component, a binder and a binder. The total content of ZrO2 and HfO2 is more than 80 mass% and 92 mass% or less, the content of Al2O3 is 0.2-3.0 mass%, the content of SiO2 is 1.5-10 mass%, the content of Na2O is 0.05-2.0 mass%, the content of K2O is 1.0 mass% or less, the content of B2O3 is 0-1.5 mass%, the content of Y2O3 is more than 4.0 mass% and 9.0 mass% or less, the total content of MgO and CaO is 0.02-0.4 mass%, the content of CaO is 0.01 mass% or more, the total content of Fe2O3 and TiO2 is 0.5 mass% or less, and the content of P2O5 is 0.04 mass% or less.
本发明的目的在于提供高氧化锆电熔铸耐火物，其在耐火物之间的接触部抑制接缝的开口，抑制锆石晶体的生成，即使锆石晶体生成，残存体积膨胀率也不极端地变大，对于玻璃的耐蚀性高，涉及高氧化锆电熔铸耐火物，其中，作为化学成分，ZrO2与HfO2的合计为超过80质量％且92质量％以下，Al2O3为0.2～3.0质量％，SiO2为1.5～10质量％，Na2O为0.05～2.0质量％，K2O为1.0质量％以下，B2O3为0～1.5质量％，Y2O3为超过4.0质量％且9.0质量％以下，MgO与CaO的合计为0.02～0.4质量％，CaO为0.01质量％以上，Fe2O3与TiO2的合计为0.5质量％以下，P2O5的含量为0.04质量％以下。
High zirconia electrocast refractory
高氧化锆电熔铸耐火物
AKAMATSU HAYATO (author) / ABE KOYA (author) / SUGIYAMA HIROSHI (author) / HASHIMOTO ITARU (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
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