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引用第8楼bob_dai于2010-12-16 00:05发表的 :+ h3 c( ^, i4 \, X1 X% y
the softening temperature of the material is determined on a separate specimen, under the conditions
+ f) x1 j: P9 N' F6 Dspecified in ISO 306 with a heating rate of 50 °C/h and modified as follows:
3 v/ e/ `- C5 }; D; I6 L4 r– the depth of penetration is 0,1 mm;9 f: |8 j. L0 S& f$ p7 l
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.
1 b) `! `# Y2 M6 H, m& u1 u; s5 C0 u0 p! Y+ Y' E
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. T5 E1 f9 k5 Q* G6 O1 I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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