摘要
钙处理铜水中［Ｃａ］在钢水、耐火材料界面上与材料中的ＳｉＯ２进行化学反应，生成的ＣａＯ又被吸附在耐火材料表面上。因材料材质不同，表面所形成的矿物不同及液相比的差异，导致抗侵蚀能力的不同。含尖晶石耐火材料则可以提高这种抗侵蚀能力。利用对ＭｇＯＣａＯ－Ａｌ２Ｏ３－ＳｉＯ２四元系研究结果，指出尖晶石耐火材料的性能除了与Ａｌ２Ｏ３、ＭｇＯ、尖晶石含量有关外，还与其它矿物组成有密切关系，并指出最佳的矿物组成范围。
uring the treatment of calcium in molten steel,calcia formed after the reaction of calcium [Ca] in interfaces between molten steel and the refractory with silica (SiO2) in the same material is adsorbed on the sufface of the re factory.Different corrosion resistance is attributed to different refractory products and the minerals formed on its surface sa well as the difference of liquid phase ratio. Spinel can improve corrosion resistance Of refractory. Based on the investigation results of the tetranary system(MgO-CaO-Al2O3-SiO2),it is indicated that the charateristic of spinel refractory is not only related to the content of alumina, magnesia and spinel but also ralated to other mineral composition.The OPtimum range of mineral composition has also been given.
出处
《耐火材料》
CAS
北大核心
1996年第6期333-336,共4页
Refractories
关键词
尖晶石
耐火材料
钢水
钙处理
Molten steel Calcium-treatment Spinel refractory
