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Preparation process of zirconium oxide refractory material with high volume density
The invention relates to a preparation process of a high-volume-density zirconium oxide refractory material. The preparation process comprises the following steps: (1) preparing electric melting zirconium oxide powder; (2) preparing yttrium-stabilized zirconium oxide granulation powder; (3) mixing: adding the electric melting zirconium oxide powder, the yttrium-stabilized zirconium oxide granulation powder, SiC and nano eta-Al2O3 into a high-speed mixing mill, and uniformly mixing and stirring; (4) pressing to form a blank: pressing the blank into a green body by a cold isostatic press under the pressure condition of 120-150Mpa; and (5) sintering and molding. According to the preparation process of the high-volume-density zirconia refractory material, the process steps are reasonably designed, crystal lattice development of the electric smelting zirconia powder and surface performance of particles are improved through high-purity calcite and heat treatment, defects are eliminated, the electric smelting zirconia powder and yttrium-stabilized zirconia granulation powder are used as main materials, SiC and nano eta-Al2O3 are added, and the high-volume-density zirconia refractory material is prepared. The zirconium oxide refractory material combines the advantages of the electric melting zirconium oxide powder and the yttrium-stabilized zirconium oxide granulated powder, and has the advantages of excellent fire resistance, higher volume density, smaller apparent porosity and simple preparation method.
一种高体积密度的氧化锆耐火材料的制备工艺，包括如下步骤：（1）电熔氧化锆粉体的制备；（2）钇稳氧化锆造粒粉的制备；（3）混料：将上述电熔氧化锆粉体、钇稳氧化锆造粒粉与SiC、纳米η‑Al2O3加入到高速混炼机中混合搅拌均匀；（4）压制成坯：经冷等静压机在120‑150Mpa的压力条件下压制成生坯；（5）烧结成型。本发明所述的高体积密度的氧化锆耐火材料的制备工艺，工艺步骤设计合理，通过高纯方解石、热处理完善电熔氧化锆粉体晶格发育和改善颗粒表面性能、消除缺陷，以电熔氧化锆粉体、钇稳氧化锆造粒粉为主，添加SiC、纳米η‑Al2O3，结合了电熔氧化锆粉体、钇稳氧化锆造粒粉的优点，耐火性能优良，具有更高的体积密度、更小的显气孔率，制备方法简单。
Preparation process of zirconium oxide refractory material with high volume density
The invention relates to a preparation process of a high-volume-density zirconium oxide refractory material. The preparation process comprises the following steps: (1) preparing electric melting zirconium oxide powder; (2) preparing yttrium-stabilized zirconium oxide granulation powder; (3) mixing: adding the electric melting zirconium oxide powder, the yttrium-stabilized zirconium oxide granulation powder, SiC and nano eta-Al2O3 into a high-speed mixing mill, and uniformly mixing and stirring; (4) pressing to form a blank: pressing the blank into a green body by a cold isostatic press under the pressure condition of 120-150Mpa; and (5) sintering and molding. According to the preparation process of the high-volume-density zirconia refractory material, the process steps are reasonably designed, crystal lattice development of the electric smelting zirconia powder and surface performance of particles are improved through high-purity calcite and heat treatment, defects are eliminated, the electric smelting zirconia powder and yttrium-stabilized zirconia granulation powder are used as main materials, SiC and nano eta-Al2O3 are added, and the high-volume-density zirconia refractory material is prepared. The zirconium oxide refractory material combines the advantages of the electric melting zirconium oxide powder and the yttrium-stabilized zirconium oxide granulated powder, and has the advantages of excellent fire resistance, higher volume density, smaller apparent porosity and simple preparation method.
一种高体积密度的氧化锆耐火材料的制备工艺，包括如下步骤：（1）电熔氧化锆粉体的制备；（2）钇稳氧化锆造粒粉的制备；（3）混料：将上述电熔氧化锆粉体、钇稳氧化锆造粒粉与SiC、纳米η‑Al2O3加入到高速混炼机中混合搅拌均匀；（4）压制成坯：经冷等静压机在120‑150Mpa的压力条件下压制成生坯；（5）烧结成型。本发明所述的高体积密度的氧化锆耐火材料的制备工艺，工艺步骤设计合理，通过高纯方解石、热处理完善电熔氧化锆粉体晶格发育和改善颗粒表面性能、消除缺陷，以电熔氧化锆粉体、钇稳氧化锆造粒粉为主，添加SiC、纳米η‑Al2O3，结合了电熔氧化锆粉体、钇稳氧化锆造粒粉的优点，耐火性能优良，具有更高的体积密度、更小的显气孔率，制备方法简单。
Preparation process of zirconium oxide refractory material with high volume density
一种高体积密度的氧化锆耐火材料的制备工艺
YAN JIANZHONG (author)
2022-05-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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