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这个加热丝的材料没有改哦
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* v# k5 x s% l2 d! ]$ P" n8 g6.2 Ignition source5 P" r6 _0 J1 g7 z+ u
NiCr (80/20) heater wire, having a normal composition of 80 % nickel and 20 %
. ]! I$ y' P/ hchromium, 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.! \; ~+ o5 V" O% R9 B; g$ y
* \) v8 E& e+ }7 h/ _& c& z6 mNOTE NiCr (80/20) heater wire has a nominal cold resistance of approximately 5,25 Ω/m. |
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