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引用第8楼bob_dai于2010-12-16 00:05发表的 :
4 I& l; w8 @$ D3 x. {9 wthe softening temperature of the material is determined on a separate specimen, under the conditions
' D% p5 |$ k# Yspecified in ISO 306 with a heating rate of 50 °C/h and modified as follows:
) h, N& P4 B& g8 z% i– the depth of penetration is 0,1 mm;
M- Y2 F; `6 z) h4 W T– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.) u; h/ M7 }& q0 @
/ v+ }4 }; e3 U+ l2 U.......
( T# c( s$ q3 ]# M% {7 [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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