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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：- Z$ o( Z; Z X4 J/ l+ }* {
) d: j5 k! w' O% `8 ]8 P
美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°
9 X: M" X C2 i) u: q% d) j( y1 I UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )
$ U% S) D) ]# Y
6 h( q6 M! G8 a0 a UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
! g" A7 g: a, H7 d7 h- s/ ]$ {# c2 o' k: O3 e, w2 J1 ^* Y8 n
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread# ]7 t# E) N8 C# v! t
UN－－－－－统一制不变螺距螺纹Unified thread, h9 n, D, k% y: Q. a! G
UNS－－－－统一制特殊螺纹Unified Special thread: L. ?8 H- x `
NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old
- _% Y: X0 b' h thread code Z,K ). Y; i. o) f* r' s
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection* }* J4 s s+ ^ f) O4 [
NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose
+ I; _7 h. y3 U/ w" q/ `. | L# B NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread5 f5 Z) g) H) m4 R* \3 N
NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
^0 [6 c+ Q% d1 q/ ^: j: U8 z: D, u NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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