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引用第8楼bob_dai于2010-12-16 00:05发表的 :
N8 ^) T Y* K4 ethe softening temperature of the material is determined on a separate specimen, under the conditions/ g" s) g' x- e, y* D3 b
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows:3 s. y4 m. z; Q9 I' s
– the depth of penetration is 0,1 mm;/ ]) ^' P& x# ^8 |* N
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.- ?. y, V& h4 {6 S
& l* K* I) M; ^& z( s. m" C.......
( I1 X2 s" B7 b 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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