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the softening temperature of the material is determined on a separate specimen, under the conditions
; o! W' N, q2 e2 H, c% J$ Dspecified in ISO 306 with a heating rate of 50 °C/h and modified as follows:4 } M9 v& R | m3 [( k |8 Z( F
– the depth of penetration is 0,1 mm;1 W7 o% w/ ?% ^* @) _# G
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.$ d2 w0 K( C; e2 C6 ~6 F5 Y @
1 ]6 ]1 u' \9 e# @0 ^' w0 h
测试是把材料放在高温的油里面,油温每小时升50C,材料上面有一个深度探针对材料施加向下10N的力,当探针穿刺深度达到0.1mm时的油温就是材料的软化温度点。 |
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