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ASTM D256塑料耐沖擊性測定的標準試驗方法
ASTM D256 Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
ASTM D256塑料耐沖擊性測定的標準試驗方法簡介:此方法包含了安裝在標準設備上的標準擺錘度對塑料耐沖擊性能的測定。ASTM E256標準測試的測試方法要求樣本有一缺口。在測試方法A,C和D中,缺口集中產生應力從而增加了脆性而不是韌性和斷裂的可能。
ASTM D256 Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics scope: These test methods cover the determination of the
resistance of plastics to “standardized” pendulumtype hammers, mounted in “standardized” machines, in breaking standard specimens with one pendulum swing . The standard tests for these test methods require specimens made with a milled notch . In Test Methods A, C,and D, the notch produces a stressconcentration that increases the probability of a brittle, rather than a ductile, fracture.
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ASTM D256塑料耐沖擊性測定的標準試驗方法
ASTM D256 Standard Test Methods&