|
the softening temperature of the material is determined on a separate specimen, under the conditions4 Q1 U6 F7 w6 _5 E/ h7 ], @! L4 g
specified in ISO 306 with a heating rate of 50 °C/h and modified as follows:0 i0 F' Z( B$ B% z& g
– the depth of penetration is 0,1 mm;# m, I1 e: S0 h/ b
– the total thrust of 10 N is applied before the dial gauge is set to zero or its initial reading noted.5 o3 S6 U- j( V3 ?+ p
; X. }6 U! r) t) a- J6 Z
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。 |
|