摘要:
A sintered product made from a starting batch containing 5 to 50% zircon and having the following average chemical composition, in weight percentages on the basis of the oxides and for a total of 100%: silica and zirconia, the zirconia content (ZrO2) being at least 64%, at least 0.2% of a dopant selected from V2O5, Nb2O5, Ta2O5, and mixtures thereof, optionally, a stabilizer selected from Y2O3, MgO, CaO, CeO2, and mixtures thereof, at a content of 6% or less, “other oxides” at a content of 6.7% or less.
摘要:
A sintered product made from a starting batch containing 5 to 50% zircon and having the following average chemical composition, in weight percentages on the basis of the oxides and for a total of 100%: silica and zirconia, the zirconia content (ZrO2) being at least 64%, at least 0.2% of a dopant selected from V2O5, Nb2O5, Ta2O5, and mixtures thereof, optionally, a stabilizer selected from Y2O3, MgO, CaO, CeO2, and mixtures thereof, at a content of 6% or less, “other oxides” at a content of 6.7% or less.
摘要翻译:由含有5〜50%锆石并具有下列平均化学成分的起始批次制成的烧结产品,以氧化物为基准,总计为100%:二氧化硅和氧化锆,氧化锆含量(ZrO 2)为 含量为6%以下的至少64%,至少0.2%的选自V 2 O 5,Nb 2 O 5,Ta 2 O 5的掺杂剂及其混合物,任选的选自Y 2 O 3,MgO,CaO,CeO 2及其混合物的稳定剂。 ,“其他氧化物”的含量为6.7%以下。
摘要:
The inventive sintered product is produced from an initial feedstock having a zirconium content ranging from 75 to 99% and the following average chemical weight composition, in percentage by weight, based on oxides: 60 %=ZrO2+HfO2=75%, 27%=SiO2=34%, 0.2=TiO2=1.5 %, 0.3
摘要:
The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight composition, expressed in weight percent based on oxide content: 0.4%
摘要:
The inventive sintered product is produced from an initial feedstock having a zirconium content ranging from 75 to 99% and the following average chemical weight composition, in percentage by weight, based on oxides: 60%=ZrO2+HfO2=75%, 27%=SiO2=34%, 0.2=TiO2=1.5 %, 0.3
摘要:
A fused and cast refractory product containing, in weight percentages on the basis of the oxides and for a total of 100%:ZrO2: remainder up to 100%Hf2O:
摘要:
The invention provides a fused cast refractory product with a high zirconia content comprising, as. a percentage by weight based on the oxides: ZrO2+Hf2O: >85%; SiO2: 6% to 12%; Al2O3: 0.4% to 1%; Y2O3: 0.2%; a dopant selected from the group formed by Nb2O5, Ta2O5, and mixtures thereof, in a quantity such that the molar ratio ZrO2/(Nb2O5+Ta2O3) is in the range 200 to 350.
摘要翻译:本发明提供了具有高氧化锆含量的熔铸耐火产品,其包含, 基于氧化物的重量百分比:ZrO 2 + Hf 2 O:> 85%; SiO2:6%〜12%; Al2O3:0.4%〜1% Y2O3:0.2% 选自Nb2O5,Ta2O5及其混合物形成的基团的掺杂剂,其量使得ZrO 2 /(Nb 2 O 5 + Ta 2 O 3)的摩尔比在200至350的范围内。
摘要:
Fused and cast refractory product including on oxides basis in percent by weight and for a total of 100%: ZrO2+HfO2 complement to 100%; 3.5% to 6.0% SiO2; 0.7% to 1.5% Al2O3; 0.10% to 0.43% Na2O+K2O; 0.05% to 0.80% B2O3; less than 0.4% CaO+SrO+MgO+ZnO; less than 0.05% P2O5; less than 0.55% Fe2O3+TiO2; less than 1.5% other species. The ratio of percentages by weight of Al2O3/(Na2O+K2O) being greater than or equal to 3.5 and the ratio of percentages by weight of B2O3/(Na2O+K2O) being between 0.3 and 2.5.
摘要:
The invention provides a novel fused cast refractory product with a high zirconia content having improved electrical resistivity. Said refractory product comprises, as a percentage by weight based on the oxides and for a total of more than 98.5%: ZrO2+Hf2O: >85%; SiO2: >10% to 12%; Al2O3: 0.1% to 2.4%; B2O3:
摘要:
The present invention relates to a fused refractory product having the following average chemical composition, as a percentage by weight on the basis of the oxides and for a total of 100%: ZrO2: 60.0%-80.0%; SiO2: 4.0%-10.0%; Al2O3: balance to 100%; Y2O3≦5.0%; Na2O+K2O+B2O3≧0.3% and SiO2/(Na2O+K2O+B2O3)≧5.0; other oxide species: ≦2.0%; the ratio of the ZrO2/Al2O3 weight contents being between 2.0 and 6.0.