采用锥形量热仪对黑龙江省主要阔叶树种三大硬阔(水曲柳Fraxinus mandshurica Rupr.,黄波罗Phellodendron amurense Rupr.,胡桃楸Juglans mandshurica Maxim.)的燃烧性进行了系统的测定,通过对3个树种树皮和叶的试样在燃烧时的热释放、质量变化及烟气产生等试验数据的综合对比分析,比较了各树种的抗火能力。结果表明:水曲柳和胡桃楸树皮抗火能力较强,胡桃楸叶抗火能力最强。综合树皮和叶得到3个树种抗火强弱的排序为:胡桃楸〉水曲柳〉黄波罗。
The combustibilities of the barks and leaves for the three hardwood ( broadleaved ) tree species ( Fraxinus mandshurica Rupr. , Phellodendron amurense Rupr. , Juglarts mandshurica Maxim. ) in Heilongjiang Province were determined by cone calorimetric analysis. The thermal characteristics of bark and leaves, including heat release, mass loss and smoke formation, were tested and recorded simultaneously. Result shows that the fire-resistances of the barks for F. mandshurica and J. mandshurica are higher, and that of the leaves for F. mandshurica is the highest. The fire resistances of the three tree species are sequenced as J. mandshurica, F. mandshurica and P. amurense from high to low.