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引用第8楼bob_dai于2010-12-16 00:05发表的 :
4 H5 c' u2 w' rthe softening temperature of the material is determined on a separate specimen, under the conditions! J% C: _, c+ t$ u
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows:" ]0 R& b: S( ^% U6 Q; ?
– the depth of penetration is 0,1 mm;7 L- t- d1 g9 k2 i, @
– 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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9 Y5 Z! n6 m7 ~) j: d) s) V....... + n: ^! F$ U& [( ~4 e) |
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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