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引用第8楼bob_dai于2010-12-16 00:05发表的 :; r+ y3 f+ C" Y) Q1 Q: y7 z& S
the softening temperature of the material is determined on a separate specimen, under the conditions1 u$ U N7 i) p' r
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows: o$ O* A. u1 R. u8 t
– the depth of penetration is 0,1 mm;
! {9 X( S) j. N: [7 P" E# `, z! s; p– 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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0 ^/ x2 T* C. O8 g2 e4 w( N....... 6 u, u* r$ v/ j/ u
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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