本发明属耐火材料技术领域，主要提出一种连铸钢包长水口用内衬材料。提出的一种连铸钢包长水口用内衬材料，其特征在于：所述的内衬材料采用氧化铝空心球、板状刚玉以及氧化铝微粉作为原料，并在原料中加入有干基氢氧化铝；所述内衬材料的原料组成重量百分比为氧化铝空心球30-50%，板状刚玉20-40%，氧化铝微粉6-15%，干基氢氧化铝6-15%；所述内衬材料的原料重量百分比为100%；所述的内衬材料还外加有占原料总重量4%的酚醛树脂作为结合剂。本发明降低了材料的体积密度、抗折强度、弹性模量和热导率；使内衬材料具有良好的抗热冲击性。

The invention belongs to the technical field of refractory materials, and a lining material for continuous cast steel wrapped long water outlet is mainly proposed. The proposed lining material for continuous casting steel ladle long water port are characterized in that the liner material uses alumina empty balls, plate-shaped corundum, and alumina fine powder as a raw material, and dry-based hydroxide is added to the raw material. Aluminum; the raw material composition weight percentage of the lining material is 30-50% alumina hollow ball, 20-40% plate corundum, 6-15% alumina micropowder, and 6-15% dry-based aluminum hydroxide; the raw material weight percentage of the lining material is 100%; the lining material is also supplemented with a phenolic resin of 4% of the total raw material weight as a binder. The invention reduces the volume density, resistance strength, elastic modulus and thermal conductivity of the material; the lining material has good thermal impact resistance.