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Preparation process of zirconium oxide refractory material for steelmaking
A preparation technology of a zirconia refractory material for steelmaking comprises the following steps that S1, mixing is conducted, specifically, a modified zirconia mixture and nanometer aluminum oxide are mixed to obtain mixed powder, the modified zirconia mixture comprises magnesium oxide partially-stabilized zirconia and electric smelting chromium sand, and the doping amount of the nanometer aluminum oxide accounts for 0.5-2% of the mass of the mixed powder; s2, ball milling: putting the mixed powder into a ball milling tank, adding 10-20 wt% of a binder, 20-30 wt% of deionized water and 1-5 wt% of a dispersant, and carrying out ball milling for 10-16 hours to obtain mixed slurry; s3, slip casting: pouring the mixed slurry into a plaster mold, and performing slip casting to obtain a green body; and S4, sintering: sintering the green body in a sintering furnace. The preparation process of the zirconium oxide refractory material for steelmaking is reasonable in design, thermal shock resistance and pressure resistance can be improved by modifying the zirconium oxide mixture and introducing the electric smelting chromium sand and the nanometer aluminum oxide, and compactness is improved by optimizing the sintering process.
一种炼钢用氧化锆耐火材料的制备工艺，包括如下步骤：S1混合：将改性氧化锆混合物与纳米氧化铝混合，得到混合粉体，所述改性氧化锆混合物包括氧化镁部分稳定氧化锆、电熔铬砂，所述纳米氧化铝的掺杂量为混合粉体质量的0.5‑2%；S2球磨：将上述混合粉体放入球磨罐中，加入10‑20 wt%粘结剂、20‑30 wt%去离子水和1‑5 wt%分散剂，球磨10‑16h，得到混合浆料；S3注浆成型：将上述混合浆料倒入石膏模具，注浆成型，得到坯体；S4烧结：将上述坯体放入烧结炉内进行烧结。本发明所述的炼钢用氧化锆耐火材料的制备工艺，设计合理，通过对氧化锆混合物的改性处理以及引入电熔铬砂、纳米氧化铝可以提高抗热震性能、耐压性能，通过对烧结工艺的优化，提高了致密性。
Preparation process of zirconium oxide refractory material for steelmaking
A preparation technology of a zirconia refractory material for steelmaking comprises the following steps that S1, mixing is conducted, specifically, a modified zirconia mixture and nanometer aluminum oxide are mixed to obtain mixed powder, the modified zirconia mixture comprises magnesium oxide partially-stabilized zirconia and electric smelting chromium sand, and the doping amount of the nanometer aluminum oxide accounts for 0.5-2% of the mass of the mixed powder; s2, ball milling: putting the mixed powder into a ball milling tank, adding 10-20 wt% of a binder, 20-30 wt% of deionized water and 1-5 wt% of a dispersant, and carrying out ball milling for 10-16 hours to obtain mixed slurry; s3, slip casting: pouring the mixed slurry into a plaster mold, and performing slip casting to obtain a green body; and S4, sintering: sintering the green body in a sintering furnace. The preparation process of the zirconium oxide refractory material for steelmaking is reasonable in design, thermal shock resistance and pressure resistance can be improved by modifying the zirconium oxide mixture and introducing the electric smelting chromium sand and the nanometer aluminum oxide, and compactness is improved by optimizing the sintering process.
一种炼钢用氧化锆耐火材料的制备工艺，包括如下步骤：S1混合：将改性氧化锆混合物与纳米氧化铝混合，得到混合粉体，所述改性氧化锆混合物包括氧化镁部分稳定氧化锆、电熔铬砂，所述纳米氧化铝的掺杂量为混合粉体质量的0.5‑2%；S2球磨：将上述混合粉体放入球磨罐中，加入10‑20 wt%粘结剂、20‑30 wt%去离子水和1‑5 wt%分散剂，球磨10‑16h，得到混合浆料；S3注浆成型：将上述混合浆料倒入石膏模具，注浆成型，得到坯体；S4烧结：将上述坯体放入烧结炉内进行烧结。本发明所述的炼钢用氧化锆耐火材料的制备工艺，设计合理，通过对氧化锆混合物的改性处理以及引入电熔铬砂、纳米氧化铝可以提高抗热震性能、耐压性能，通过对烧结工艺的优化，提高了致密性。
Preparation process of zirconium oxide refractory material for steelmaking
一种炼钢用氧化锆耐火材料的制备工艺
YAN JIANZHONG (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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