Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Magnesium-carbon tundish nozzle for tire cord steel and preparation method of magnesium-carbon tundish nozzle
The invention provides a magnesia-carbon tundish nozzle for tire cord steel and a preparation method of the magnesia-carbon tundish nozzle, and belongs to the field of refractory materials with continuous casting functions. A body of the magnesia-carbon composite tundish nozzle is made of a magnesia-carbon material, a bowl part is made of a magnesia-carbon material, and a layer of magnesia-carbon material lining is compounded in an inner hole of the body; the tundish nozzle body material comprises the following main raw materials in percentage by weight: 45-70% of fused magnesite or sintered magnesite, 5-20% of fused quartz, 20-30% of graphite, 1-5% of additive and 10-15% of phenolic resin. The tundish nozzle lining comprises the following main raw materials: 45-70% of fused magnesite or sintered magnesite, 15-45% of fused quartz, 2-5% of graphite, 2-7% of an additive and 8-12% of phenolic resin. The tundish nozzle body is made of the magnesia-carbon material, the lining is also made of the composite magnesia-carbon material, and the gradient composite principle is adopted, so that thermal stress can be relieved, the thermal shock resistance stability of the material is improved, the tundish nozzle is applied to cord steel production, aluminum or zirconium inclusions can be prevented from being introduced into molten steel through a traditional tundish nozzle, and the service life of the tundish nozzle is prolonged. And the yield of tire cord steel and the quality of molten steel can be greatly improved.
本发明提供一种帘线钢用镁碳中包水口及其制备方法，属于连铸功能耐火材料领域，镁碳复合中包水口的本体为镁碳材料，碗部为镁碳材质，在本体内孔复合一层镁碳材质内衬，中包水口本体材料的主要原料为电熔镁砂或者烧结镁砂45‑70％、熔融石英5‑20％、石墨20‑30％，并加入1‑5％的添加剂和10‑15％的酚醛树脂；中包水口内衬的主要原料为电熔镁砂或者烧结镁砂45‑70％、熔融石英15‑45％，并加入石墨2‑5％、添加剂2‑7％及酚醛树脂8‑12％；本发明通过在中包水口本体上使用镁碳材料，并在内衬上也采用复合镁碳材料，采用梯度复合原理，从而能缓和热应力，提高材料的抗热震稳定性，应用于帘线钢生产，可避免传统中包水口在钢水中引入铝质或者锆质夹杂，可大幅度提高帘线钢的成品率和钢水质量。
Magnesium-carbon tundish nozzle for tire cord steel and preparation method of magnesium-carbon tundish nozzle
The invention provides a magnesia-carbon tundish nozzle for tire cord steel and a preparation method of the magnesia-carbon tundish nozzle, and belongs to the field of refractory materials with continuous casting functions. A body of the magnesia-carbon composite tundish nozzle is made of a magnesia-carbon material, a bowl part is made of a magnesia-carbon material, and a layer of magnesia-carbon material lining is compounded in an inner hole of the body; the tundish nozzle body material comprises the following main raw materials in percentage by weight: 45-70% of fused magnesite or sintered magnesite, 5-20% of fused quartz, 20-30% of graphite, 1-5% of additive and 10-15% of phenolic resin. The tundish nozzle lining comprises the following main raw materials: 45-70% of fused magnesite or sintered magnesite, 15-45% of fused quartz, 2-5% of graphite, 2-7% of an additive and 8-12% of phenolic resin. The tundish nozzle body is made of the magnesia-carbon material, the lining is also made of the composite magnesia-carbon material, and the gradient composite principle is adopted, so that thermal stress can be relieved, the thermal shock resistance stability of the material is improved, the tundish nozzle is applied to cord steel production, aluminum or zirconium inclusions can be prevented from being introduced into molten steel through a traditional tundish nozzle, and the service life of the tundish nozzle is prolonged. And the yield of tire cord steel and the quality of molten steel can be greatly improved.
本发明提供一种帘线钢用镁碳中包水口及其制备方法，属于连铸功能耐火材料领域，镁碳复合中包水口的本体为镁碳材料，碗部为镁碳材质，在本体内孔复合一层镁碳材质内衬，中包水口本体材料的主要原料为电熔镁砂或者烧结镁砂45‑70％、熔融石英5‑20％、石墨20‑30％，并加入1‑5％的添加剂和10‑15％的酚醛树脂；中包水口内衬的主要原料为电熔镁砂或者烧结镁砂45‑70％、熔融石英15‑45％，并加入石墨2‑5％、添加剂2‑7％及酚醛树脂8‑12％；本发明通过在中包水口本体上使用镁碳材料，并在内衬上也采用复合镁碳材料，采用梯度复合原理，从而能缓和热应力，提高材料的抗热震稳定性，应用于帘线钢生产，可避免传统中包水口在钢水中引入铝质或者锆质夹杂，可大幅度提高帘线钢的成品率和钢水质量。
Magnesium-carbon tundish nozzle for tire cord steel and preparation method of magnesium-carbon tundish nozzle
一种帘线钢用镁碳中包水口及其制备方法
YAN FENGMING (Autor:in) / GUO YULONG (Autor:in) / ZHANG HAN (Autor:in) / HU JUNYAN (Autor:in) / XU YEXING (Autor:in) / DAI GUIRONG (Autor:in) / SUN XIAOXIAO (Autor:in) / ZHAO ZHIYONG (Autor:in)
21.03.2023
Patent
Elektronische Ressource
Chinesisch
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