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这个加热丝的材料没有改哦# {1 L9 {; l. Z' g" o
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NiCr (80/20) heater wire, having a normal composition of 80 % nickel and 20 %& k& _( k4 c, L
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.8 x$ K+ @( @' V* V6 R) t( T5 P
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NOTE NiCr (80/20) heater wire has a nominal cold resistance of approximately 5,25 Ω/m. |
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