作者：GAN Feifang1GUO Zongqi2GAO Jianying3WANG Tao1WANG Zhaohui4
作者單位：1. Baoshan Iron & Steel Co., Ltd. 2. Trasteel International SA 3. Imerys (China) Co., Ltd. 4. Zhaohui Energy-Saving Technology Co., Ltd.
刊名：China’s Refractories
ISSN：1004-4493
出版年：2021-03-15
卷：30
期：1
起頁：17-22
止頁：
分類號：TF341;TQ175.1
語種：英文
關鍵詞：
內容簡介The manufacture of clean steel needs high performance carbon-free bricks for ladle lining. Based on long term application experiences of the prefab Al2O3-MgO blocks, unburnt Al2O3-MgO brick has been developed by pressing a mix of alumina, spinel and magnesia as major raw materials and Al2O3-MgO gel powder as binder. In addition to low open porosity and high strength, the unburnt Al2O3-MgO brick shows superior corrosion resistance and thermal shock resistance to the prefab block. Field trials in a 300 t steel ladle have indicated the residual lining of unburnt Al2O3-MgO bricks showed smooth surface without large spalling and seldom steel infiltration, consequently longer service life than the prefab blocks. The reliable, unburnt Al2O3-MgO bricks have more advantages of high efficiency, energy-saving and eco-friendly production. It will be one of the best options for ladle lining in the manufacture of high-purity steel.
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