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连铸机中间罐的耐火材料包含保护层和工作层。保护层主要由耐火粘土或高铝砖组成,而工作层则采用碱性喷注材料或绝热板。 瑞士的Hganas公司开发了一种以橄榄石为主,含镁橄榄石和少量铁橄榄石的喷注材料。橄榄石喷注材料还含有有机纤维,使用中可消除回胀并能快速加热喷注材料,蒸气通过时不会剥落。这种喷注材料的成分是57％MgO,34％SiO_2,7％Fe_2O_3和1％Al_2_3。1850℃时的耐火性是SK38,堆密度2300kg/m~3,一般使用厚度25mm,寿命150t钢水。 起初是用人工喷注,80年代开发了计算机控制的机器人喷注系统(Hatco喷注系统)。
The refractories of the caster middle tank contain the protective and working layers. The protective layer is mainly composed of refractory clay or high alumina brick, while the working layer is made of alkaline injection material or insulation board. Hganas, Switzerland, has developed an injection molding material based on olivine, forsterite and a small amount of fayalite. The olivine spray material also contains organic fibers that eliminate swelling and quickly heat the spray material during use without voids passing through the vapors. The composition of this injection material is 57% MgO, 34% SiO_2, 7% Fe_2O_3 and 1% Al_2_3. The fire resistance at 1850 ℃ is SK38, the bulk density is 2300kg / m ~ 3, and the thickness is 25mm. Initially, manual injection was used. In the 1980s, a computer-controlled robot injection system (Hatco injection system) was developed.