Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HIGH ELECTRICAL RESISTANT HIGH ZIRCONIA ELECTRIC MELTING CAST REFRACTORY
PROBLEM TO BE SOLVED: To provide a high electrical resistant high zirconia electric melting cast refractory which is little cracked during production and temperature rising, excellent in productivity, and having long term durability even when used as a single refractory or contacting with a molten glass.SOLUTION: The high zirconia electric melting cast refractory having high electrical property at a high temperature is provided that contains ZrOof 85 to 95 wt.%, AlOof 0.1 and less than 0.8 wt.%, SiOof 3.5 to 10.0 wt.%, total of NaO and KO of less than 0.05 wt.%, BOof 0.1 to 1.5 wt.%, MgO of 0.1 wt.% or less, CaO of 0.01 to 0.2 wt.%, for BaO and SrO, BaO of 0.05 to 3.0 wt.% or SrO of 0.01 to 3.0 wt.% or in the case containing both, SrO of 0.01 wt.% or more and the total of SrO and BaO of 0.01 to 3.0 wt.%, SnOof 0.1 to 0.7 wt.%, the total of FeOand TiOof 0.3 wt.% or less, POof less than 0.01 wt.%, CuO of less than 0.01 wt.%.SELECTED DRAWING: Figure 1
【課題】製造時及び昇温時の割れが少なく、生産性に優れ、耐火物単体でも、溶融ガラスと接触した場合でも、長期間の耐久性を備えた高電気抵抗高ジルコニア電気溶融鋳造耐火物の提供。【解決手段】ＺｒＯ2が８５〜９５重量％、Ａｌ2Ｏ3が０．１〜０．８重量％未満、ＳｉＯ2が３．５〜１０．０重量％、Ｎａ2ＯとＫ2Ｏの合計が０．０５重量％未満、Ｂ2Ｏ3が０．１〜１．５重量％、ＭｇＯが０．１重量％以下、ＣａＯが０．０１〜０．２重量％、ＢａＯとＳｒＯに関しては、ＢａＯが０．０５〜３．０重量％、又は、ＳｒＯが０．０１〜３．０重量％、双方含む時は、ＳｒＯが０．０１重量％以上でＳｒＯとＢａＯの合計が０．０１〜３．０重量％、ＳｎＯ2が０．１〜０．７重量％、Ｆｅ2Ｏ3とＴｉＯ2の合計が０．３重量％以下、Ｐ2Ｏ5が０．０１重量％未満、ＣｕＯが０．０１重量％未満であり、高温での高電気特性を有する高ジルコニア電気溶融鋳造耐火物。【選択図】図１
HIGH ELECTRICAL RESISTANT HIGH ZIRCONIA ELECTRIC MELTING CAST REFRACTORY
PROBLEM TO BE SOLVED: To provide a high electrical resistant high zirconia electric melting cast refractory which is little cracked during production and temperature rising, excellent in productivity, and having long term durability even when used as a single refractory or contacting with a molten glass.SOLUTION: The high zirconia electric melting cast refractory having high electrical property at a high temperature is provided that contains ZrOof 85 to 95 wt.%, AlOof 0.1 and less than 0.8 wt.%, SiOof 3.5 to 10.0 wt.%, total of NaO and KO of less than 0.05 wt.%, BOof 0.1 to 1.5 wt.%, MgO of 0.1 wt.% or less, CaO of 0.01 to 0.2 wt.%, for BaO and SrO, BaO of 0.05 to 3.0 wt.% or SrO of 0.01 to 3.0 wt.% or in the case containing both, SrO of 0.01 wt.% or more and the total of SrO and BaO of 0.01 to 3.0 wt.%, SnOof 0.1 to 0.7 wt.%, the total of FeOand TiOof 0.3 wt.% or less, POof less than 0.01 wt.%, CuO of less than 0.01 wt.%.SELECTED DRAWING: Figure 1
【課題】製造時及び昇温時の割れが少なく、生産性に優れ、耐火物単体でも、溶融ガラスと接触した場合でも、長期間の耐久性を備えた高電気抵抗高ジルコニア電気溶融鋳造耐火物の提供。【解決手段】ＺｒＯ2が８５〜９５重量％、Ａｌ2Ｏ3が０．１〜０．８重量％未満、ＳｉＯ2が３．５〜１０．０重量％、Ｎａ2ＯとＫ2Ｏの合計が０．０５重量％未満、Ｂ2Ｏ3が０．１〜１．５重量％、ＭｇＯが０．１重量％以下、ＣａＯが０．０１〜０．２重量％、ＢａＯとＳｒＯに関しては、ＢａＯが０．０５〜３．０重量％、又は、ＳｒＯが０．０１〜３．０重量％、双方含む時は、ＳｒＯが０．０１重量％以上でＳｒＯとＢａＯの合計が０．０１〜３．０重量％、ＳｎＯ2が０．１〜０．７重量％、Ｆｅ2Ｏ3とＴｉＯ2の合計が０．３重量％以下、Ｐ2Ｏ5が０．０１重量％未満、ＣｕＯが０．０１重量％未満であり、高温での高電気特性を有する高ジルコニア電気溶融鋳造耐火物。【選択図】図１
HIGH ELECTRICAL RESISTANT HIGH ZIRCONIA ELECTRIC MELTING CAST REFRACTORY
高電気抵抗高ジルコニア電気溶融鋳造耐火物
SUGIYAMA HIROSHI (Autor:in) / KUBOKI TOSHIMITSU (Autor:in) / HASHIMOTO ITARU (Autor:in) / MISU YASUO (Autor:in)
08.08.2016
Patent
Elektronische Ressource
Japanisch