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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：
6 X1 W9 K" o* K8 E+ `
! ^# ^6 R. h! O$ N* ]/ Z 美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°
3 k) m' y8 X! L; D UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )5 p2 X o( J; y1 E9 J& N2 q
N& T! b1 P! d8 j UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
3 Z$ T; m3 F x2 Q" g, s+ L8 w0 V. ?
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread
D( j* x, @+ T! b J1 { k1 m; g UN－－－－－统一制不变螺距螺纹Unified thread
7 g0 N O7 ]9 N1 U) E' `; n& i UNS－－－－统一制特殊螺纹Unified Special thread
' i& s$ H3 v6 O E) T NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old 3 n2 f' i# o' {2 i3 J' f
thread code Z,K ); D$ k+ x4 ]& K" J
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection
$ U) ?. g& {5 e3 x w NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose
2 \4 H. S& k" z, X3 ?) S NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread
0 p4 }# _; U' i( Z; n6 t NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
$ P- q, ], W2 u: U* o NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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