換氣老化特點(diǎn) | |
本機(jī)專門針對(duì)橡膠、塑膠 及各種絕緣材料之熱老化性做測(cè)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. 溫度分佈均勻。 | |
c. 開門後溫度回昇速率。 | |
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(cè)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(cè)定方法 | |
This method measures the air change rate of the std type oven as follows | |
N=3590 (X-Y)x2 / VxDx | |
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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) | |
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