高性能耐火耐候建筑用钢的高温性能及耐火性能  

Mechanical properties at elevated temperature and fire endurance of fire-resistant and weathering construction steel

作　　者：陈晓[1] 刘继雄[1] 董汉雄[1] 邹德辉[1] 童明伟[1] 熊家锦[2] 师华[2] 郑卫东[2] 肖利鹏[2] 

机构地区：[1]武汉钢铁集团公司技术中心,武汉430080 [2]北京航空材料研究院,北京100095

出　　处：《中国有色金属学报》2004年第F01期231-236,共6页The Chinese Journal of Nonferrous Metals

摘　　要：对高性能耐火耐候建筑用钢WGJ510C2和普通建筑结构用钢Q235在实验室条件下进行了中型炉耐火试验的对比分析。结果表明:两种钢在不同涂料以及同一涂料的不同厚度下,其耐火极限均有明显的差异,在裸露条件下,WGJ510C2的耐火极限明显优于Q235;同样的涂料在一定厚度范围内,随着防火涂料厚度的增加,耐火钢的优势也加大;对于不同的防火涂料,如使用隔热性能好的涂料,则耐火钢的优势更大,即良好的防火涂料的隔热效果更能充分发挥耐火钢的优势。Mechanical properties of the high fire-resistant and weathering construction steel WGJ510C2 were compared with those of the conventional carbon construction steel Q235 at high temperature and high profiled bar fire-resistant capability in lab. The results show that the fire endurance of the two steels obviously varies in different fire protection coats or different thickness in common fire protection coats. The fire endurance of WGJ510C2 in bareness is much better than that of Q235, and the advantage of WGJ510C2 is more remarkable with the increase of thickness in the certain range for the same fire coat. The fire-resistant ability of WGJ510C2 is proportional to heat insulation of different fire coat.

关 键 词：耐火性能 耐候性能 建筑用钢 防火涂料 

分 类 号：TG142[一般工业技术—材料科学与工程]