|
这个加热丝的材料没有改哦
. E/ J' A$ R( r5 H3 K
9 V1 @: f( `/ P: o& C6.2 Ignition source
* U- E& Z: ^0 \! q' t NiCr (80/20) heater wire, having a normal composition of 80 % nickel and 20 %; M( r' A% L1 l: t" U- i3 h- I
chromium, having a diameter of 0,5 mm+ 0,020mm and a minimum length of 250 mm.This heater wire is coiled around the centre portion of the test specimen by applying five turns.
2 D1 F7 [, }' E; I; @
9 {% @7 v/ l9 @9 {! s8 ^/ bNOTE NiCr (80/20) heater wire has a nominal cold resistance of approximately 5,25 Ω/m. |
|