換氣老化特點(diǎn) 本機(jī)專門針對橡膠、塑料 及各種絕緣材料之熱老化性做測試,其性能與一般老化爐不同，本機(jī)之設(shè)計(jì)具備有: a. 溫度調(diào)節(jié)精度。 b. 溫度分布均勻。 c. 開門后溫度回升速率。 d. 試驗(yàn)槽內(nèi)之風(fēng)速及換氣率。 e. 試驗(yàn)槽內(nèi)之隔熱密封。 f. 特殊換氣率調(diào)整裝置。 g. 依據(jù)測試標(biāo)準(zhǔn): JIS K-7217, K-7623, K-6301, ASTM D-2436, D-573, UL-746B, IEC-540, BS-6746, 903, ISO/DIS 4577 換氣率測定方法 This method measures the air change rate of the std type oven as follows N=3590 (X-Y)x2 / VxDx T N: number of changes of air per hour X: Power consumption during air change (W) Y: Power consumption during no air change (W) V: total volume of oven (cm3) D: Density of oven ambient air (g/cm3) T: Temperature difference inside/outside oven (°C)