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引用第8楼bob_dai于2010-12-16 00:05发表的 :% s9 |3 h( w& `/ \4 d+ P2 c
the softening temperature of the material is determined on a separate specimen, under the conditions1 E3 W) T# C. p4 `. Z/ z
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows:# n6 E* ^2 m- q, I d
– the depth of penetration is 0,1 mm;) G) R8 r4 C9 x1 E" E% `
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.
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$ w$ {/ |1 W- v: B L6 s' G补充八楼的说法,测试设备最好是可以实现自动控制功能的设备,例如在设定限值为0.1mm时,只要变形深度超过0.1mm,那么测试设备会自动停止加热,马上记录软化温度并显示出来。 |
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