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发表于 2007-6-20 12:50:10
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来自： 中国广东广州
用UNF 螺纹代替：
# @% l: T) H# }0 o7 h
* }# x l1 w# K8 v( @ 美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°) F; J. Q3 ]4 x, }3 o% J
UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )
! f) i* o: B0 x5 x, Q
( D" R. g/ `4 t7 @9 A UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
0 Z" C' l; T: p7 m) v# r% ?( w' b) ]9 g/ h0 y5 h
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread# `* t. ]. V6 j/ A
UN－－－－－统一制不变螺距螺纹Unified thread
/ p9 w* X- j5 u) _ UNS－－－－统一制特殊螺纹Unified Special thread
; x8 m8 a; q) {" \' M1 y NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old * S* \. u' U& y8 z) s; P
thread code Z,K )* \% d/ S, I: `
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection
5 W$ ^" c! U, m% p7 X3 \0 D% ` NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose! r' _) P) E% m+ L
NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread
7 `! T7 m% U6 U+ A$ V* S. x6 F! A! x NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
4 [" J9 E+ Z/ }" q4 N NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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