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引用第8楼bob_dai于2010-12-16 00:05发表的 :
/ H: D. H' ], Q6 ?" J& rthe softening temperature of the material is determined on a separate specimen, under the conditions
2 m6 ? K0 A1 \( s0 lspecified in ISO 306 with a heating rate of 50 °C/h and modified as follows:" I( m" w7 Y2 w N
– the depth of penetration is 0,1 mm;: P! L$ w+ J. g- v% B
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.
3 w; H7 O* l. I+ e1 i: h1 x
+ A5 F; n6 G, n7 V8 L....... ) u( N% ]1 O3 k, h) 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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