Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-cost tundish prefabricated part and preparation method thereof
The invention discloses a low-cost tundish prefabricated part and a preparation method thereof, and relates to the technical field of steel smelting. The low-cost tundish prefabricated part comprisesthe following components in percentage by mass: 20-45% of regenerated magnesia carbon particles, 20-50% of magnesia particles, 10-30% of magnesia fine powder, 0.5-5% of a magnesium binding agent, 1-4%of Si2N2O, 2-5% of silica powder, 0.01-0.03% of metal aluminum powder, 0.1-0.15% of sodium tripolyphosphate, 0.1-0.15% of sodium hexametaphosphate and 0.05-0.15% of organic fibers. According to the low-cost tundish prefabricated part and the preparation method thereof, a reasonable and effective hydration process is provided, an impregnation treatment process is added on the basis of optimizing the hydration process, and after hydration and impregnation treatment process treatment, the regenerated magnesia carbon material is used for replacing fused magnesia, so that the production cost is greatly reduced, and meanwhile, the introduced Si2N2O can form microcracks at high temperature to buffer thermal stress, so that the high-temperature volume stability of the magnesium prefabricated partis improved, and the problem of damage caused by cracks is reduced.
本发明公开了一种低成本中间包预制件及其制备方法，涉及钢铁冶炼技术领域。该低成本中间包预制件及其制备方法，该预制件包括如下质量百分比的组分：20‑45％再生镁碳料颗粒、20‑50％镁砂颗粒、10‑30％镁砂细粉、0.5‑5％镁质结合剂、1‑4％Si2N2O、2‑5％硅微粉、0.01‑0.03％金属铝粉、0.1‑0.15％三聚磷酸钠、0.1‑0.15％六偏磷酸钠、0.05‑0.15％有机纤维。该低成本中间包预制件及其制备方法，提出了一种合理有效的水化工艺，并在优化水化工艺基础上增加浸渍处理工艺，通过水化及浸渍处理工艺处理后，使用再生镁碳料替代电熔镁砂，大大降低生产成本，同时引入Si2N2O可以在高温下形成微裂纹而缓冲热应力，从而提高镁质预制件的高温体积稳定性，减少因出现裂纹而损坏的问题。
Low-cost tundish prefabricated part and preparation method thereof
The invention discloses a low-cost tundish prefabricated part and a preparation method thereof, and relates to the technical field of steel smelting. The low-cost tundish prefabricated part comprisesthe following components in percentage by mass: 20-45% of regenerated magnesia carbon particles, 20-50% of magnesia particles, 10-30% of magnesia fine powder, 0.5-5% of a magnesium binding agent, 1-4%of Si2N2O, 2-5% of silica powder, 0.01-0.03% of metal aluminum powder, 0.1-0.15% of sodium tripolyphosphate, 0.1-0.15% of sodium hexametaphosphate and 0.05-0.15% of organic fibers. According to the low-cost tundish prefabricated part and the preparation method thereof, a reasonable and effective hydration process is provided, an impregnation treatment process is added on the basis of optimizing the hydration process, and after hydration and impregnation treatment process treatment, the regenerated magnesia carbon material is used for replacing fused magnesia, so that the production cost is greatly reduced, and meanwhile, the introduced Si2N2O can form microcracks at high temperature to buffer thermal stress, so that the high-temperature volume stability of the magnesium prefabricated partis improved, and the problem of damage caused by cracks is reduced.
本发明公开了一种低成本中间包预制件及其制备方法，涉及钢铁冶炼技术领域。该低成本中间包预制件及其制备方法，该预制件包括如下质量百分比的组分：20‑45％再生镁碳料颗粒、20‑50％镁砂颗粒、10‑30％镁砂细粉、0.5‑5％镁质结合剂、1‑4％Si2N2O、2‑5％硅微粉、0.01‑0.03％金属铝粉、0.1‑0.15％三聚磷酸钠、0.1‑0.15％六偏磷酸钠、0.05‑0.15％有机纤维。该低成本中间包预制件及其制备方法，提出了一种合理有效的水化工艺，并在优化水化工艺基础上增加浸渍处理工艺，通过水化及浸渍处理工艺处理后，使用再生镁碳料替代电熔镁砂，大大降低生产成本，同时引入Si2N2O可以在高温下形成微裂纹而缓冲热应力，从而提高镁质预制件的高温体积稳定性，减少因出现裂纹而损坏的问题。
Low-cost tundish prefabricated part and preparation method thereof
一种低成本中间包预制件及其制备方法
CUI RENQU (Autor:in) / LIU QUAN (Autor:in) / WANG DEJUN (Autor:in) / YU SHUZHONG (Autor:in) / ZHANG XIAOHONG (Autor:in) / SHANG GANGCHENG (Autor:in) / LUO WENKAI (Autor:in) / GU YUFENG (Autor:in)
16.03.2021
Patent
Elektronische Ressource
Chinesisch
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