The results showed that : there were five stages in the rising process of the internal temperature of untreated , fire - retardant solution soaked , and fire - proof paint coated wood during the fire ; the carbonization rate of wood decreased by 21 . 1 % ~ 35 . 6 % and the rising speed of internal temperature also declined greatly when wood was soaked in fire - retardant solution or coated with fireproof paint ; the carbonization rate of white pine was 8 . 5 % ~ 17 . 4 % higher than that of the northeast china ash ; for untreated wood , the carbonization rate in tangential direction was 5 . 8 % ~ 10 . 5 % higher than that in radial direction ; the internal temperature of wood varies with the developing direction of combustion 結(jié)果表明:火災(zāi)發(fā)生過程中未處理木材、阻燃浸漬處理和涂刷防火徐料木材內(nèi)部溫度上升過程出現(xiàn)5個(gè)階段;經(jīng)過阻燃浸漬處理和涂刷防火涂料后,木材的燃燒炭化速度降低了21 . 1 % ~ 35 . 6 % ,內(nèi)部溫度上升速度大幅度下降;白皮松木材的燃燒炭化速度比水曲柳木材的燃燒炭化速度快8 . 5 % ~ 17 . 4 % ;未處理木材沿弦向的燃燒炭化速度比徑向快5 . 8 % ~ 10 . 5 % ;木材內(nèi)部的溫度變化沿燃燒推進(jìn)方向不同而不同。