及耐火性能
熊家錦2, 師 華2, 鄭衛(wèi)東2, 肖利鵬2
(1. 武漢鋼鐵（集團(tuán)）公司技術(shù)中心， 武漢 430080；
2. 北京航空材料研究院，北京 100095)
摘 要: 對(duì)高性能耐火耐候建筑用鋼WGJ510C2和普通建筑結(jié)構(gòu)用鋼Q235在實(shí)驗(yàn)室條件下進(jìn)行了中型爐耐火試驗(yàn)的對(duì)比分析。結(jié)果表明： 兩種鋼在不同涂料以及同一涂料的不同厚度下， 其耐火極限均有明顯的差異， 在裸露條件下， WGJ510C2的耐火極限明顯優(yōu)于Q235； 同樣的涂料在一定厚度范圍內(nèi)，隨著防火涂料厚度的增加， 耐火鋼的優(yōu)勢(shì)也加大； 對(duì)于不同的防火涂料， 如使用隔熱性能好的涂料， 則耐火鋼的優(yōu)勢(shì)更大， 即良好的防火涂料的隔熱效果更能充分發(fā)揮耐火鋼的優(yōu)勢(shì)。
關(guān)鍵字: 耐火性能； 耐候性能； 建筑用鋼； 防火涂料
ZOU De-hui1, TONG Ming-wei1, XIONG Jia-jing2,
SHI Hua2, ZHENG
（1. NETC of Wuhan Iron and Steel(Group) Corporation, Wuhan 430080, China;
2. Beijing Institute of Aeronautical Materials, Beijing 100095, China）
Abstract: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.
Key words: fire-resistant; weathering; construction steel; fire protection coat
