CN101622209A - 耐火的熔融浇铸制品 - Google Patents
耐火的熔融浇铸制品 Download PDFInfo
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- CN101622209A CN101622209A CN200880006608.8A CN200880006608A CN101622209A CN 101622209 A CN101622209 A CN 101622209A CN 200880006608 A CN200880006608 A CN 200880006608A CN 101622209 A CN101622209 A CN 101622209A
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 56
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000002425 crystallisation Methods 0.000 claims description 34
- 230000008025 crystallization Effects 0.000 claims description 33
- 229910052839 forsterite Inorganic materials 0.000 claims description 9
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 7
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 32
- 239000000395 magnesium oxide Substances 0.000 description 32
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 32
- 239000000203 mixture Substances 0.000 description 19
- 238000002360 preparation method Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 230000006641 stabilisation Effects 0.000 description 7
- 238000011105 stabilization Methods 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 6
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000048 melt cooling Methods 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 3
- 241000282320 Panthera leo Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910017625 MgSiO Inorganic materials 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- XKRLIFYYISXRES-UHFFFAOYSA-M [O-2].[O-2].[Zr+4].[OH-].[Mg+2] Chemical compound [O-2].[O-2].[Zr+4].[OH-].[Mg+2] XKRLIFYYISXRES-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical group [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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Abstract
本发明涉及一种基于二氧化锆的耐火的熔融浇铸制品。
Description
本发明涉及一种基于二氧化锆的耐火的熔融浇铸制品。
由于二氧化锆(ZrO2)的耐腐蚀性，其特别适用于制备耐火制品。
基于二氧化锆的耐火制品的重要应用领域例如是铸钢领域，其中该相应制品作为连续铸造喷嘴(Stranggussdüse)、闸板和作为在特别高要求领域的磨损部件使用。
在玻璃槽中也使用基于二氧化锆的耐火的熔融浇铸制品。
二氧化锆有三种变体。在低温下二氧化锆以单斜变体形式存在，在约1170℃下经可逆转变成四方(tetragonal)变体。在约2300℃下发生进一步可逆转变成二氧化锆的立方(kubisch)变体。
因为单斜低温变体的体积大于该两高温变体的体积，所以基于二氧化锆的制品在高于或低于该转变温度下会发生体积收缩或体积膨胀。在制备和应用基于二氧化锆的耐火制品时，这会导致制品中的裂纹。
由于此原因，已知的是，通过添加氧化物，特别是下列氧化物：氧化镁(MgO)、氧化钙(CaO)、氧化钇(Y2O3)或其它稀土的氧化物如氧化铈(CeO2)以稳定基于二氧化锆的耐火制品。这些添加剂可制得直到室温仍是亚稳定的高温变体，由此降低了异常的热膨胀并因此可制得二氧化锆材料。
但这种稳定化的缺点是在该制品使用时会失去稳定性。用于稳定所用的氧化物会迁移到腐蚀环境(例如由玻璃和渣组成的熔体)中，这造成制品体积减小。通过体积减小增加了对耐火制品的腐蚀性侵蚀。
在高二氧化锆含量的熔融浇铸产品情况下的稳定化是不可能的，因为该产品除含二氧化锆外还含玻璃相，而用于稳定化的氧化物会迁移进该玻璃相。
基于此原因，在制备基于二氧化锆的耐火的熔融浇铸制品时现今仍未实施二氧化锆的稳定化来降低裂纹风险。相反，在熔融浇铸产品情况下在高于或低于该转变温度下所出现的二氧化锆制品的体积变化现今是通过该玻璃相缓冲的。在熔融浇铸的制品中的二氧化锆嵌入富二氧化硅的玻璃相中，该玻璃相在加热和冷却时起二氧化硅变体改变的缓冲剂的作用。
但该玻璃相经常不能在基于二氧化锆的制品的加热和冷却时足够地缓冲该体积变化，以致特别是在制备制品时出现裂纹，该裂纹在应用时会导致制品裂开。
此外，制品中玻璃相的含量对其磨损也起重要作用。
特别在用于制备基于二氧化锆的熔融浇铸的制品的熔体冷却时也存在问题。由于在熔体冷却和其凝固期间会出现大的温差，所以导致不利的结晶行为，这时由于固体析出形成相互分离的含熔体区。在继续凝固时由此产生在凝固熔体或制品上分散地分布的缩孔。由该缩孔显著恶化了该制品的品质或甚至使该制品不可使用。
本发明的目的在于提供一种具有改进的腐蚀性能和磨损性能的基于二氧化锆的耐火的熔融浇铸制品。此外，本发明的目的还在于，在二氧化锆熔体冷却期间抑制分散分布的缩孔。
本发明的目的是通过提供基于二氧化锆的耐火的熔融浇铸的制品实现的，其中氧化锆晶体由氧化镁稳定化且由含氧化镁的结晶相的至少一种所包围。
与现有技术中同样基于二氧化锆的熔融浇铸的制品不同，本发明基于的基本思路是通过加入氧化镁(MgO)达到二氧化锆的稳定化。该通过加入氧化镁稳定二氧化锆是由本发明的知识实现的，由此可使该用于稳定的氧化镁至腐蚀环境的迁移变缓或甚至实际上受阻，因为通过氧化镁稳定的二氧化锆晶体嵌入至少一种含氧化镁的结晶相中或由该结晶相所包围。
这可能是通过降低经稳定的二氧化锆和邻近的结晶相之间的浓度梯度而产生该稳定二氧化锆的氧化镁的缓慢移动。
在本申请的制品中，该含氧化镁的结晶相包围通过MgO稳定的二氧化锆晶体，并且有助于二氧化锆的稳定或保持该稳定化。与现有技术已知的基于二氧化锆的熔融浇铸制品相比，本申请的基于二氧化锆的耐火的熔融浇铸制品有明显改进的腐蚀特性和磨损特性。可明显降低熔体冷却时在制品上形成裂纹的趋势。
同时本发明的制品可接近或甚至实际上完全不出现分散分布的缩孔。其原因是本申请制品特别有利的结晶行为，与通常的体系(ZrO2-SiO2)相比，这可能是由于本申请的体系(MgO稳定的ZrO2-含氧化镁的结晶相)有更小的熔化区间(Schmelzintervall)。
优选地，该通过MgO稳定的二氧化锆晶体由至少一种下列含氧化镁的结晶相所包围：镁橄榄石(Mg2SiO4)、顽火辉石(偏硅酸镁；MgSiO3)、堇青石(2MgO·2Al2O3·5SiO2)或尖晶石(MgO·Al2O3)。
由此本申请制品中包围该经稳定的二氧化锆晶体的含氧化镁的结晶相不是基于MgO和ZrO2的结晶相。
镁橄榄石在本申请制品中具有特别有利的作用，以致在本申请的耐火熔融浇铸制品中，该经稳定的二氧化锆晶体优选由镁橄榄石的结晶相所包围。
本申请制品中的含氧化镁结晶相的形成优选在其制备时原位实施，即特别是在熔化(Erschmelzen)后的冷却期间实施。以此方式可有目的地通过原料组分的类型和数量影响该含氧化镁结晶相的形成。
为在制备本申请制品期间实现原位形成该含氧化镁的结晶相，有目的地选择原料组分来制备本申请的制品，这些组分一方面引起二氧化锆由Mg稳定化，并且另一方面导致形成围绕二氧化锆晶体的含氧化镁结晶相的形成。
仅由下列三种原料组分制备本申请制品可能是足够的：
1.ZrO2原料组分。
2.MgO原料组分。
3.至少一种其它原料组分(下面也称“其它原料组分”)，该组分与部分MgO原料组分形成含氧化镁的结晶相。
该其它原料组分以这样的量加入：即在制备本申请制品期间其完全与部分MgO原料组分形成含氧化镁的结晶相。剩余部分的MgO原料组分稳定ZrO2。
为形成镁橄榄石或顽火辉石形式的含氧化镁的结晶相，可选择例如SiO2形式的其它原料组分。
为形成堇青石形式的含氧化镁的结晶相，例如可选择Al2O3形式的第一其它原料组分和SiO2形式的第二其它原料组分。例如也可选择既含Al2O3也含SiO2的其它组分，例如硅线石(Sillimanit)或红柱石(Andalusit)。
为形成尖晶石形式的含氧化镁的结晶相，例如可选择Al2O3形式的其它原料组分。
在本申请制品中的不同组分的份额例如可为下面所述，其中数据均为重量％(质量％)，并按该制品的总质量计。
该含氧化镁的结晶相的份额例如可为≥0.5％，即例如为≥1％、≥1.5％或≥2％。该含氧化镁的结晶相的份额的上限例如是≤10％，即例如是≤8％、≤6％、≤5％或≤4％。
因此，该含氧化镁的结晶相的份额例如可为0.5-10％，即例如是1-8％、1-6％、2-5％或2-4％。
在基于经稳定的二氧化锆的本申请熔融浇铸制品中，优选是高氧化锆含量产品(HZFC产品)。
二氧化锆的份额例如可为≥70％，即例如≥80％、≥85％或≥90％。该二氧化锆的最大份额例如是≤98％，即例如是≤97％、≤96％或≤95％。
因此，该二氧化锆的份额例如可为70-98％，即例如是80-98％、85-97％、90-96％或90-95％。
本申请制品中MgO的份额例如可为≥0.5％，即例如≥1％或≥2％。该MgO的最大份额例如可为≤10％，即例如为≤8％、≤6％或≤4％。
本申请制品中的MgO的份额例如可为0.5-10％，即例如1-10％、2-8％、2-6％或2-4％。
存在于本申请制品中的前述的MgO的份额部分用于稳定二氧化锆和一部分存在于含氧化镁的结晶相中。
按本申请，用于稳定二氧化锆的MgO的份额可超过在含氧化镁的结晶相中的MgO的份额。根据本申请可以设想，用于稳定ZrO2的MgO的份额与在含氧化镁的结晶相中的MgO的份额之比可为6/5-15/1，即例如3/2-7/1。
除MgO外，还可存在用于稳定制品中的二氧化锆的其它氧化物，例如氧化物CaO、Y2O3或CeO2中的一种或多种，其份额均为0.5-5％，例如也可为0.5-3％。
除上述组分外，本申请的制品还可含杂质如Fe2O3、TiO2或CaO。这些杂质可例如经不纯的原料引入制品中，如作为二氧化锆的原料组分的不纯的斜锆矿(Baddeleyit)。特别是本申请的制品还可含HfO2(二氧化铪)形式的杂质，因为天然的锆矿物特别是斜锆矿通常含1-5％的HfO2。该杂质份额在本申请中优选为≤5％，即例如为≤3％、≤2％或≤1％。
本申请的耐火熔融浇铸制品的两个示例性组成如下：
实施例1
ZrO2 92.4％
MgO 4.6％
SiO2 1.4％
HfO2 1.4％
其余杂质 0.2％
该制品含2％的镁橄榄石。该镁橄榄石由全部量的SiO2和0.6％的MgO组成(zusammensetzen)。该剩余的4.0％MgO用于稳定ZrO2。
实施例2
ZrO2 92.4％
MgO 3.2％
SiO2 2.8％
HfO2 1.4％
其余杂质 0.2％
该制品含4％的镁橄榄石。该镁橄榄石由全部量的SiO2和1.2％的MgO组成。该剩余的2.0％MgO用于稳定ZrO2。
例如可通过下列方法制备本申请的制品：
首先将原料二氧化锆、氧化镁和至少一种在制备过程中与部分氧化镁一起形成含氧化镁的结晶相的其它组分进行混合。该原料量彼此之间如此调节，使得该其它组分在制备过程中与部分氧化镁组分完全消耗掉以形成含氧化镁的结晶相。
接着将该原料混合物在电弧炉中于氧化性条件下熔融。
最后将该熔体浇铸到模具中或为制备粒状物料而将其凝固成块。
经凝固后，从模具中取出熔体，并且该所得制品经相应的机械加工(如钻、磨、锯)后例如可用于玻璃炉的炉衬，例如用作围墙砖。
凝固成块的熔体例如可用于制备粒状物料，该粒状物料例如用作陶瓷结合的二氧化锆砖、其它的含二氧化锆的砖或含二氧化锆的未成形制品的粒状原料。
Claims (9)
1.基于二氧化锆的耐火的熔融浇铸制品，其中该二氧化锆晶体通过氧化镁稳定，并且由至少一种含氧化镁的结晶相所包围。
2.权利要求1的耐火的熔融浇铸制品，其中该经稳定化的二氧化锆晶体由下列含氧化镁的结晶相的至少一种所包围：镁橄榄石、顽火辉石、堇青石或尖晶石。
3.权利要求1的耐火的熔融浇铸制品，其中含氧化镁的结晶相的份额按该制品总质量计为0.5-10重量％。
4.权利要求1的耐火的熔融浇铸制品，其中含氧化镁的结晶相的份额按该制品总质量计为1-8重量％。
5.权利要求1的耐火的熔融浇铸制品，其中含氧化镁的结晶相的份额按该制品总质量计为1-6重量％。
6.权利要求1的耐火的熔融浇铸制品，其中二氧化锆的份额按该制品总质量计为80-98重量％。
7.权利要求1的耐火的熔融浇铸制品，其中二氧化锆的份额按该制品总质量计为90-96重量％。
8.权利要求1的耐火的熔融浇铸制品，其中氧化镁的份额按该制品总质量计为1-10重量％。
9.权利要求1的耐火的熔融浇铸制品，其中氧化镁的份额按该制品总质量计为2-6重量％。
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| PCT/EP2008/001488 WO2008104354A1 (de) | 2007-02-28 | 2008-02-26 | Schmelzgegossenes feuerfestes erzeugnis |
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| EP (1) | EP2129636B9 (zh) |
| JP (1) | JP5149312B2 (zh) |
| CN (1) | CN101622209B (zh) |
| AT (1) | ATE481368T1 (zh) |
| DE (2) | DE102007010173B4 (zh) |
| RU (1) | RU2440953C2 (zh) |
| WO (1) | WO2008104354A1 (zh) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241522A (zh) * | 2010-05-13 | 2011-11-16 | 郑州振中电熔锆业有限公司 | 镁稳定二氧化锆的电熔制造方法 |
| CN106470958A (zh) * | 2014-07-14 | 2017-03-01 | 里弗雷克特里知识产权两合公司 | 耐火产品、二氧化锆的用途、二氧化锆、用于制造耐火产品的方法和由其制造的耐火产品 |
| CN107162590A (zh) * | 2017-05-25 | 2017-09-15 | 三祥新材股份有限公司 | 一种电熔法生产镁稳定锆的方法 |
| CN111344264A (zh) * | 2018-01-16 | 2020-06-26 | 里弗雷克特里知识产权两合公司 | 用于制备耐火产品的熔融原料、用于制备所述熔融原料的方法以及所述熔融原料的用途 |
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| RU2672972C2 (ru) * | 2017-05-11 | 2018-11-21 | Открытое акционерное общество "Первоуральский динасовый завод" (ОАО "ДИНУР") | Способ получения чистого от углерода и карбидов плавленого диоксида циркония |
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| FR952855A (fr) * | 1942-01-29 | 1949-11-25 | Electro Refractaire | Réfractaire basique moulé |
| DE1170305B (de) * | 1958-07-08 | 1964-05-14 | Electro Refractaire | Verfahren zur Herstellung eines feuerfesten, geschmolzenen, in Formen gegossenen und praktisch keine Waermedehnungsanomalie aufweisenden Zirkonoxyderzeugnisses |
| FR2320276A1 (fr) * | 1975-08-06 | 1977-03-04 | Prod Refractaires Europ | Billes ameliorees en matiere ceramique |
| US4294795A (en) * | 1978-06-12 | 1981-10-13 | Kureha Kagaku Kogyo Kabushiki Kaisha | Stabilized electrocast zirconia refractories |
| US4880757A (en) * | 1986-01-24 | 1989-11-14 | The Dow Chemical Company | Chemical preparation of zirconium-aluminum-magnesium oxide composites |
| JP2706730B2 (ja) * | 1989-03-16 | 1998-01-28 | 東京窯業株式会社 | 耐火材料 |
| JPH0397670A (ja) * | 1989-09-07 | 1991-04-23 | Toshiba Ceramics Co Ltd | マグネシア部分安定化ジルコニア |
| JPH0717379B2 (ja) * | 1990-06-07 | 1995-03-01 | 日本研磨材工業株式会社 | 高温耐熱性及び耐食性に優れた溶融ジルコニア耐火材料およびその製造方法並びに連続鋳造用ノズル |
| JPH0737344B2 (ja) * | 1990-11-28 | 1995-04-26 | ハリマセラミック株式会社 | 塩基性質不定形耐火物 |
| JP2603397B2 (ja) * | 1992-04-03 | 1997-04-23 | 品川白煉瓦株式会社 | 耐火材料 |
| JP2927645B2 (ja) * | 1993-07-08 | 1999-07-28 | 日本研磨材工業 株式会社 | 溶融ジルコニア耐火材料及びその製造方法並びに耐火材製品 |
| JP3518560B2 (ja) * | 1994-08-10 | 2004-04-12 | サンゴバン・ティーエム株式会社 | 高ジルコニア溶融耐火物 |
| US5679612A (en) | 1994-08-10 | 1997-10-21 | Toshiba Monofrax Co., Ltd. | High-zirconia fused refractories |
| US6723672B1 (en) * | 1999-01-26 | 2004-04-20 | Carpenter Advanced Ceramics, Inc. | High-strength magnesia partially stabilized zirconia |
| DE60006358T2 (de) * | 1999-01-26 | 2004-09-09 | Carpenter Advanced Ceramics, Inc., Auburn | Magnesiumoxid-teilstabilisiertes zirkonoxid hoher festigkeit |
| CN1207246C (zh) * | 2001-11-21 | 2005-06-22 | 郑州振中电熔锆业有限公司 | 电熔锆酸钙的生产方法 |
| FR2836682B1 (fr) * | 2002-03-01 | 2005-01-28 | Saint Gobain Ct Recherches | Produit refractaire fondu et coule a forte teneur en zircone |
| DE10254676A1 (de) * | 2002-11-22 | 2004-06-09 | Refractory Intellectual Property Gmbh & Co.Kg | Feuerfester keramischer Formkörper |
| JP2004099441A (ja) * | 2003-11-25 | 2004-04-02 | Saint-Gobain Tm Kk | 高ジルコニア溶融耐火物 |
-
2007
- 2007-02-28 DE DE102007010173A patent/DE102007010173B4/de not_active Expired - Fee Related
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2008
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- 2008-02-26 WO PCT/EP2008/001488 patent/WO2008104354A1/de active Application Filing
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- 2008-02-26 AT AT08716031T patent/ATE481368T1/de active
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241522A (zh) * | 2010-05-13 | 2011-11-16 | 郑州振中电熔锆业有限公司 | 镁稳定二氧化锆的电熔制造方法 |
| CN106470958A (zh) * | 2014-07-14 | 2017-03-01 | 里弗雷克特里知识产权两合公司 | 耐火产品、二氧化锆的用途、二氧化锆、用于制造耐火产品的方法和由其制造的耐火产品 |
| CN107162590A (zh) * | 2017-05-25 | 2017-09-15 | 三祥新材股份有限公司 | 一种电熔法生产镁稳定锆的方法 |
| CN111344264A (zh) * | 2018-01-16 | 2020-06-26 | 里弗雷克特里知识产权两合公司 | 用于制备耐火产品的熔融原料、用于制备所述熔融原料的方法以及所述熔融原料的用途 |
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| Publication number | Publication date |
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| DE102007010173B4 (de) | 2009-04-16 |
| RU2440953C2 (ru) | 2012-01-27 |
| DE102007010173A1 (de) | 2008-09-04 |
| US20100048377A1 (en) | 2010-02-25 |
| EP2129636A1 (de) | 2009-12-09 |
| JP2010519168A (ja) | 2010-06-03 |
| US7989381B2 (en) | 2011-08-02 |
| ATE481368T1 (de) | 2010-10-15 |
| JP5149312B2 (ja) | 2013-02-20 |
| DE502008001321D1 (de) | 2010-10-28 |
| EP2129636B9 (de) | 2011-01-26 |
| EP2129636B1 (de) | 2010-09-15 |
| CN101622209B (zh) | 2012-10-24 |
| WO2008104354A1 (de) | 2008-09-04 |
| RU2009129877A (ru) | 2011-04-10 |
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