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Molding ultrahigh-temperature ceramic sealing gasket for steelmaking submersed nozzle and preparation method of molding ultrahigh-temperature ceramic sealing gasket
The invention discloses a molding ultrahigh-temperature ceramic sealing gasket for a steelmaking submersed nozzle. The raw material formula of the ceramic sealing gasket is composed of an outer-layer raw material and an inner-layer raw material, wherein the inner-layer raw material comprises the following components in parts by weight: 40-60 parts of aluminum oxide, 20-40 parts of magnesium aluminate spinel, 10-30 parts of magnesium oxide, 5-30 parts of aluminum oxide sol, 5-10 parts of a composite additive and 1-5 parts of a humectant; and the outer-layer raw material is a graphite material. The ceramic sealing gasket has good high-temperature use performance, good strength and good plastic deformation performance, and is well filled between a tundish collector nozzle and the submersed nozzle, so that complete filling and sealing are achieved, and air is completely prevented from entering molten steel through the part.
本发明公开了一种炼钢浸入式水口用塑形超高温陶瓷密封垫，所述陶瓷密封垫的原料配方由外层原料和内层原料组成；其中，所述内层原料包括如下重量份的组分：40‑60份氧化铝、20‑40份镁铝尖晶石、10‑30份氧化镁、5‑30份氧化铝溶胶、5‑10份复合添加剂和1‑5份保湿剂；外层原料为石墨材料。其具有很好的高温使用性能，同时具有很好的强度和塑性变形性能，很好的填充在中间包下水口与浸入式水口之间，达到完全的填充和密封，完全隔绝空气通过该部位进入至钢水。
Molding ultrahigh-temperature ceramic sealing gasket for steelmaking submersed nozzle and preparation method of molding ultrahigh-temperature ceramic sealing gasket
The invention discloses a molding ultrahigh-temperature ceramic sealing gasket for a steelmaking submersed nozzle. The raw material formula of the ceramic sealing gasket is composed of an outer-layer raw material and an inner-layer raw material, wherein the inner-layer raw material comprises the following components in parts by weight: 40-60 parts of aluminum oxide, 20-40 parts of magnesium aluminate spinel, 10-30 parts of magnesium oxide, 5-30 parts of aluminum oxide sol, 5-10 parts of a composite additive and 1-5 parts of a humectant; and the outer-layer raw material is a graphite material. The ceramic sealing gasket has good high-temperature use performance, good strength and good plastic deformation performance, and is well filled between a tundish collector nozzle and the submersed nozzle, so that complete filling and sealing are achieved, and air is completely prevented from entering molten steel through the part.
本发明公开了一种炼钢浸入式水口用塑形超高温陶瓷密封垫，所述陶瓷密封垫的原料配方由外层原料和内层原料组成；其中，所述内层原料包括如下重量份的组分：40‑60份氧化铝、20‑40份镁铝尖晶石、10‑30份氧化镁、5‑30份氧化铝溶胶、5‑10份复合添加剂和1‑5份保湿剂；外层原料为石墨材料。其具有很好的高温使用性能，同时具有很好的强度和塑性变形性能，很好的填充在中间包下水口与浸入式水口之间，达到完全的填充和密封，完全隔绝空气通过该部位进入至钢水。
Molding ultrahigh-temperature ceramic sealing gasket for steelmaking submersed nozzle and preparation method of molding ultrahigh-temperature ceramic sealing gasket
一种炼钢浸入式水口用塑形超高温陶瓷密封垫及其制备方法
HU ZHIWEI (author) / LI XUEWEI (author) / FAN ZHIHUI (author)
2022-02-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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