公开(公告)号：WO2015025901A1

公开(公告)日：2015-02-26

申请号：PCT/JP2014/071817

申请日：2014-08-14

Applicant: SAINT-GOBAIN TM K.K.

Inventor： KUBOKI Toshimitsu ,  SUGIYAMA Hiroshi ,  MISU Yasuo ,  HASHIMOTO Itaru

IPC: C04B35/657 ,  C03B5/43 ,  C04B35/48 ,  F27B14/10 ,  F27D1/00

CPC classification number: C04B35/49 ,  C03B5/43 ,  C04B35/48 ,  C04B35/484 ,  C04B35/657 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/327 ,  C04B2235/3272 ,  C04B2235/3281 ,  C04B2235/3293 ,  C04B2235/34 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/72 ,  F27B14/10 ,  F27D1/00 ,  F27D1/0006 ,  F27D1/16

Abstract: To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time. [Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of Zr0 2 , from 0.4 to 2.5% by weight of A1 2 0 3 , from 3.5 to 10% by weight of Si0 2 , from 0.05 to 1% by weight in total of Na 2 0 and K 2 0, more than 0.04% by weight and 1% by weight or less of Β 2 0 3 , 0.02% by weight or less of P 2 0 5 , 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of Sn0 2 , and 0.3% by weight or less in total of Fe 2 0 3 and Ti0 2 .

Abstract translation: 为了提供在生产和加热时具有较少裂纹的高的氧化锆熔融耐火材料，具有优异的生产率，难以单独在耐火材料与熔融玻璃接触的条件下难以形成锆石晶体，难以发生裂纹 在玻璃熔炉操作中接收热循环，并且具有长时间的耐久性。 [问题的解决方案]一种高氧化锆熔融铸造耐火材料，其含有85〜95重量％的ZrO 2，0.4〜2.5重量％的Al 2 O 3，3.5〜10重量％的SiO 2，0.05〜 Na 2 O和K 2 O的总重量为1重量％，大于0.04重量％和1重量％以下的Bgr; 203,0.02重量％以下的P 2 O 5，0.05重量％以下的MgO，0.01〜 在含有SrO和BaO的情况下，含有0.3重量％〜3重量％的SrO，超过0.5重量％和3重量％以下的BaO的情况下，CaO为0.2重量％，在这种情况下 其中含有它们，SrO为0.3重量％以上，SrO和BaO为0.3〜3重量％，SnO 2为0.01〜0.7重量％，SnO 2为0.3重量％以下， Fe2O3和Ti02。

公开(公告)号：WO2016056146A1

公开(公告)日：2016-04-14

申请号：PCT/JP2014/081918

申请日：2014-11-26

Applicant: Saint Gobain TM K.K.

Inventor： SUGIYAMA Hiroshi ,  KUBOKI Toshimitsu ,  HASHIMOTO Itaru ,  MISU Yasuo

IPC: C04B35/657 ,  C03B5/43 ,  C04B35/48

CPC classification number: C04B35/49 ,  C03B5/43 ,  C04B35/484 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3272 ,  C04B2235/3281 ,  C04B2235/3293 ,  C04B2235/34 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/6565 ,  C04B2235/667 ,  C04B2235/72 ,  C04B2235/727 ,  C04B2235/9669

Abstract: A high zirconia electrically fused cast refractory having long time durability with less cracking during production and in the course of temperature rising, excellent in productivity, less forming zircon crystals in the refractory itself and even in contact with molten glass, excellent in bubble foamability to molten glass, less generating cracks even undergoing heat cycles during operation of a glass melting furnace. A high zirconia electrically fused cast refractory comprises, as chemical component, 85 to 95% by weight of ZrO 2 , 0.4 to 2.5% by weight of Al 2 O 3 , 3.5 to 10.0% by weight of SiO 2 , 0.05% by weight or more of Na 2 O, 0.05 to 0.7% by weight of Na 2 O and K 2 O in total, 0.01 to 0.04% by weight of B 2 O 3 , 0.1 to 3.0% by weight of SrO or BaO when one of BaO and SrO is contained, 0.1% by weight or more of SrO and 0.1 to 3.0% by weight of SrO and BaO in total when both of BaO and SrO are contained, 0.01 to 0.2% by weight of CaO, 0.1% by weight or less of MgO, 0.01 to 0.7% by weight of SnO 2 , 0.3% by weight or less of Fe 2 O 3 and TiO 2 in total, less than 0.01% by weight of P 2 O 5 , and less than 0.01% by weight of CuO.

Abstract translation: 高耐氧化锆电熔铸造耐火材料，具有长时间的耐久性，在生产过程中和在升温过程中具有较少的开裂，生产率优异，耐火材料本身形成锆石晶体，甚至与熔融玻璃接触，熔融玻璃泡沫起泡性优异 玻璃，玻璃熔融炉操作期间即使经历热循环也不会产生裂纹。 高氧化锆电熔铸造耐火材料包含85〜95重量％的ZrO 2，0.4〜2.5重量％的Al 2 O 3，3.5〜10.0重量％的SiO 2，0.05重量％以上的Na 2 O，0.05 〜0.7重量％的Na 2 O和K 2 O，0.01〜0.04重量％的B 2 O 3，0.1〜3.0重量％的SrO或BaO，当含有BaO和SrO时，SrO为0.1重量％以上，0.1重量％ 在含有BaO和SrO的情况下总共为3.0重量％的SrO和BaO，0.01〜0.2重量％的CaO，0.1重量％以下的MgO，0.01〜0.7重量％的SnO 2，0.3重量％ 重量或更少的Fe 2 O 3和TiO 2，小于0.01重量％的P 2 O 5和小于0.01重量％的CuO。