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本帖最后由 xiaoning 于 2015-1-19 12:52 编辑 9 \& Q3 A* |8 ?) b/ o4 K' W
Nezof 发表于 2014-2-26 11:53 0 v/ L7 o. T( d* @! n! b
好吧,人家是这么做的:
+ ]& f+ R8 m" M3 C找到测试方法了:[url=]MOLD-STRESSRELIEF CONDITIONING:A sample was placed in an air-circulating oven for7 hours with an oven temperature was at minimum 70°C or 10°C higherthan the maximum temperature obtained during the Temperature Test corrected toa 25°Cambient. The sample's polymeric partswere then examined for softening, warping or cracking.[/url][url=], Z8 f+ M0 N; H$ y9 a% H4 u: P8 m
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