|
发表于 2007-6-20 12:50:10
|
显示全部楼层
来自: 中国广东广州
用UNF 螺纹代替:
5 ~/ @* t* s5 U9 _* q$ _* z8 X' T& W- Z3 v# E
美制螺纹(螺纹牙型角60度)Thread of American standard ( Thread pitch shape angle 60°3 F& u- Y; Q# T' [
UNC----统一制粗牙螺纹(代替NC)Unified coarse pitch thread ( Instead of NC )
7 D, V% \- v, T2 D8 l$ V; G+ x- H( z! i! ^
UNF----统一制细牙螺纹(代替NF)Unified fine pitch thread ( Instead of NF )
8 L5 K1 g1 L. y4 \* P
5 h' M5 g/ b' R$ } d( O UNEF----统一制超细牙螺纹Unified superfine pitch thread7 \: E. M( Z, A# C" z
UN-----统一制不变螺距螺纹Unified thread- P- Z) e1 n, d8 X6 p
UNS----统一制特殊螺纹Unified Special thread
$ @& m! V+ M( T q0 X NPT----一般用途锥管螺纹(旧代号Z;K)Taper pipe thread for general purpose ( Old . Y2 R. K" F0 [5 ?3 y
thread code Z,K )- B! G& ?! U0 x$ j* ~" {
NPSC----管接头直管内螺纹Internal straight pipe thread for connection
7 k: J I3 n( G, h" F NPSM----设备上自由配合,机械连接用直管螺纹Straight pipe thread for general purpose, n4 ^ B' \" v! o6 a0 M) ? I; R
NPTF----干密封锥管螺纹Dryseal taper pipe thread: I8 ~+ [ o$ Y" \' c# F
NPSF----干密封燃油直管螺纹Dryseal straight pipe internal thread# x( D" r2 r+ P9 t, F1 b. X: b
NGT----气瓶用锥螺纹Special thread for gas cylinder |
|