低水泥结合氧化铝空心球轻质浇注料的研究

Study on Low Cement Bonded Alumina Hollow Ball Light Weight Castable

针对氧化铝空心球的结构特点,采用低水泥结合、浇注成型的方式,对低水泥结合氧化铝空心球轻质浇注料的可行性进行了研究。经过相图理论计算、性能检测及X-射线衍射分析,结果表明,铝酸钙水泥不仅有利于提高材料的常温强度,并且对材料的高温烧结具有促进作用,材料的主要矿物组成为CA6和刚玉,材料的高温性能良好,使用温度可以达到1650℃以上。

According to the structure features of alumina hollow ball, a feasibility study is carried out for low cement bonded alumina hollow ball light weight castable through the mode of low cement bonding and casting molding. Through the phase diagram theoretical calculation, property determination and X-ray diffraction analysis, the result shows that calcium aluminate cement is not only favorable to the improvement of the cold strength of the material, but also can promote the high temperature sintering of the material. The major mineral composition of the material is CA6 and corundum. The material has a good high temperature property and its application temperature can reach 1 650℃ or higher.