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Toughened zirconia ceramic tundish nozzle for continuous casting of square and round billets and production process of toughened zirconia ceramic tundish nozzle
The invention relates to the technical field of continuous casting of steel and iron, in particular to a toughened zirconia ceramic tundish nozzle for continuous casting of square and round billets, which comprises a zirconia ceramic lining and a refractory jacket. The zirconia ceramic lining comprises the following raw materials in parts by weight: 10-60 parts of stable zirconia with the stability of 60-80%, 35-90 parts of monoclinic phase zirconia, 2-17 parts of alpha-Al2O3 micro powder, 1-11 parts of silicon carbide micro powder, 1-3 parts of boron nitride micro powder, 1-6 parts of magnesium oxide micro powder and 1-2 parts of yttrium oxide micro powder. And the refractory material jacket comprises a high-aluminum homogenized material or high-aluminum bauxite. The tundish nozzle is long in service life, the service life of a tundish can be prolonged, the productivity/operation rate of a continuous casting machine can be improved, the molten steel yield can be improved, the quality of continuous casting billets can be improved, refractory material consumption of the tundish per ton of steel can be obviously reduced, and cost is saved.
本发明涉及钢铁连铸技术领域，尤其涉及方圆坯连铸用增韧氧化锆陶瓷中间包水口,包括氧化锆陶瓷内衬和耐火材料外套；氧化锆陶瓷内衬，包括以下重量份的原料：60～80%稳定度的稳定氧化锆10～60份、单斜相氧化锆35～90份、α‑Al2O3微粉2～17份、碳化硅微粉1～11份、氮化硼微粉1～3份、氧化镁微粉1～6份、氧化钇微粉1～2份；耐火材料外套，包括高铝均化料或高铝矾土。该中包水口的使用寿命长，不但可以提高中间包的使用寿命，提高连铸机产能/作业率，提高钢水收得率，改善连铸坯质量，还能够使得吨钢中间包耐火材料消耗明显下降，节约成本。
Toughened zirconia ceramic tundish nozzle for continuous casting of square and round billets and production process of toughened zirconia ceramic tundish nozzle
The invention relates to the technical field of continuous casting of steel and iron, in particular to a toughened zirconia ceramic tundish nozzle for continuous casting of square and round billets, which comprises a zirconia ceramic lining and a refractory jacket. The zirconia ceramic lining comprises the following raw materials in parts by weight: 10-60 parts of stable zirconia with the stability of 60-80%, 35-90 parts of monoclinic phase zirconia, 2-17 parts of alpha-Al2O3 micro powder, 1-11 parts of silicon carbide micro powder, 1-3 parts of boron nitride micro powder, 1-6 parts of magnesium oxide micro powder and 1-2 parts of yttrium oxide micro powder. And the refractory material jacket comprises a high-aluminum homogenized material or high-aluminum bauxite. The tundish nozzle is long in service life, the service life of a tundish can be prolonged, the productivity/operation rate of a continuous casting machine can be improved, the molten steel yield can be improved, the quality of continuous casting billets can be improved, refractory material consumption of the tundish per ton of steel can be obviously reduced, and cost is saved.
本发明涉及钢铁连铸技术领域，尤其涉及方圆坯连铸用增韧氧化锆陶瓷中间包水口,包括氧化锆陶瓷内衬和耐火材料外套；氧化锆陶瓷内衬，包括以下重量份的原料：60～80%稳定度的稳定氧化锆10～60份、单斜相氧化锆35～90份、α‑Al2O3微粉2～17份、碳化硅微粉1～11份、氮化硼微粉1～3份、氧化镁微粉1～6份、氧化钇微粉1～2份；耐火材料外套，包括高铝均化料或高铝矾土。该中包水口的使用寿命长，不但可以提高中间包的使用寿命，提高连铸机产能/作业率，提高钢水收得率，改善连铸坯质量，还能够使得吨钢中间包耐火材料消耗明显下降，节约成本。
Toughened zirconia ceramic tundish nozzle for continuous casting of square and round billets and production process of toughened zirconia ceramic tundish nozzle
方圆坯连铸用增韧氧化锆陶瓷中间包水口及其生产工艺
WANG CHUANXUE (author) / WU PEIXIA (author) / WU JIANXIANG (author)
2023-04-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
| European Patent Office | 2023
| European Patent Office | 2024