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Working layer for forming continuous casting tundish refractory lining
The invention discloses a working layer for forming a continuous casting tundish refractory lining. The continuous casting tundish refractory lining is composed of a heat insulation layer, a permanentlayer and the working layer. The composition proportion of the continuous casting tundish refractory lining is shown in the specification, by weight, 15 to 20% of waste magnesia carbon brick with theparticle size of 3-5 mm, 35 to 40% of waste magnesia carbon brick with the particle size of 0.1-2.9 mm, 8 to 14% of dead burned magnesia with the particle size of 0.089-1 mm, 28 to 32% of dead burnedmagnesia with the particle size of 0.088 mm, 3 to 4% of a binding agent and 1.4 to 1.6% of an additive. The working layer is reasonable in design, the probability of secondary oxidation of molten steel in the tundish can be reduced, hydrogen absorption of the molten steel is reduced, pollution to the molten steel is reduced, the service life of a working layer is prolonged, the quality of steel billets is improved, and the labor productivity in the tundish maintenance process is improved.
本发明公开了一种构成连铸中间包耐火内衬的工作层，包括连铸中间包耐火内衬由绝热层、永久层和工作层构成，连铸中间包耐火内衬工作层的组成配比如下：粒度为3‑5mm的废镁碳砖15‑20%、粒度为0.1‑2.9mm的废镁碳砖35‑40%、粒度为0.089‑1mm的重烧镁砂8‑14%、粒度为0.088mm的重烧镁砂28‑32%、结合剂3‑4%、添加剂1.4‑1.6%，所有百分数为重量百分数。本发明设计合理，可以减轻中间包内钢液二次氧化的机会，使钢液的吸氢下降，减少对钢液的污染，提高工作层的使用寿命,提高钢坯的质量，提高中间包维护过程的劳动生产率。
Working layer for forming continuous casting tundish refractory lining
The invention discloses a working layer for forming a continuous casting tundish refractory lining. The continuous casting tundish refractory lining is composed of a heat insulation layer, a permanentlayer and the working layer. The composition proportion of the continuous casting tundish refractory lining is shown in the specification, by weight, 15 to 20% of waste magnesia carbon brick with theparticle size of 3-5 mm, 35 to 40% of waste magnesia carbon brick with the particle size of 0.1-2.9 mm, 8 to 14% of dead burned magnesia with the particle size of 0.089-1 mm, 28 to 32% of dead burnedmagnesia with the particle size of 0.088 mm, 3 to 4% of a binding agent and 1.4 to 1.6% of an additive. The working layer is reasonable in design, the probability of secondary oxidation of molten steel in the tundish can be reduced, hydrogen absorption of the molten steel is reduced, pollution to the molten steel is reduced, the service life of a working layer is prolonged, the quality of steel billets is improved, and the labor productivity in the tundish maintenance process is improved.
本发明公开了一种构成连铸中间包耐火内衬的工作层，包括连铸中间包耐火内衬由绝热层、永久层和工作层构成，连铸中间包耐火内衬工作层的组成配比如下：粒度为3‑5mm的废镁碳砖15‑20%、粒度为0.1‑2.9mm的废镁碳砖35‑40%、粒度为0.089‑1mm的重烧镁砂8‑14%、粒度为0.088mm的重烧镁砂28‑32%、结合剂3‑4%、添加剂1.4‑1.6%，所有百分数为重量百分数。本发明设计合理，可以减轻中间包内钢液二次氧化的机会，使钢液的吸氢下降，减少对钢液的污染，提高工作层的使用寿命,提高钢坯的质量，提高中间包维护过程的劳动生产率。
Working layer for forming continuous casting tundish refractory lining
构成连铸中间包耐火内衬的工作层
YAN FANG (author) / BU ZHISHENG (author) / XIE YINGMING (author) / LEE MYUNG (author) / WANG JINCHENG (author) / WANG JIANHAI (author) / ZENG GUANGYA (author) / JIN YONGQIANG (author) / CHEN BAOHUI (author) / MIHEREGULI AITI (author)
2020-06-30
Patent
Electronic Resource
Chinese
LINING REFRACTORY MATERIAL FOR CONTINUOUS CASTING TUNDISH
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