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引用第8楼bob_dai于2010-12-16 00:05发表的 :
* u3 {5 r+ R5 k/ V/ Z, Pthe softening temperature of the material is determined on a separate specimen, under the conditions, i e: e- |6 C2 O) C9 U: v
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows:+ O3 v) M* Z' ~4 k( w; D
– the depth of penetration is 0,1 mm;
; q) x$ S7 j6 N$ d) E0 l– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.
0 i9 v1 E0 F/ o5 ]; N$ J! W3 G9 t, Y
....... + F) B0 `# ~+ F+ x! z
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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