胀管时测得某一打磨后管子的外径为51.3mm,内径为46mm,胀在孔为52mm的管扎上,胀管完毕,测得翻边胀管后的管子内径为47.4mm,求胀管率H是多少?
正确答案:
按胀管率公式:
H=(d-d-δ)³100%/d
d=47.4mm,d=46mm,d=52mm
δ=52-51.3=0.7mm
则胀管率为H=(47.4-46-0.7)³100%/52=1.35%
胀管率H是1.35%。
H=(d-d-δ)³100%/d
d=47.4mm,d=46mm,d=52mm
δ=52-51.3=0.7mm
则胀管率为H=(47.4-46-0.7)³100%/52=1.35%
胀管率H是1.35%。
答案解析:有
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