铝镁碳砖中的玻璃防氧化剂

Study of Glass Antioxidant in Al_(2)O_(3)-MgO-C Brick

研究了硼酸盐和磷酸盐两个系列七种配方的玻璃防氧化剂 ,实验表明这两种玻璃防氧化剂均可降低铝镁碳砖的气孔率 ,提高铝镁碳砖的抗氧化能力及烧后的耐压强度 ,但也不同程度地降低了铝镁砖的高温荷重软化变形温度 ,其中磷酸盐玻璃优于硼酸盐玻璃 ,其高温荷重软化变形温度可达到 1 6 0 0℃以上 ,仍是可取的防氧化剂 .

This article is about two series of borate and phosphate comprising seven directions.The experiment result shows that both of the two glass antioxidants can reduce apparent porosity,raise oxidation resistance and the crushing strenth after fire,but lower refractoriness under load.Phosphate glass is superior to borate in Refractoriness under load.Which can attain over 1600 ℃;so the phosphate glass is a desirable antioxidant.