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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：
5 S9 g: ^0 w! ~/ H6 h% { R8 _# @5 E* X" c7 m! D# z' s( y
美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°
% w5 m3 u9 w- {) B( V$ m UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )
, F2 d$ M2 F @1 ~) Q
% C% }9 q" N7 E; r; R' P3 h UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )8 d) C6 {1 _- r3 M; L: k8 _
0 H' i$ p* s% W
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread9 W3 b& O3 O1 D5 Z
UN－－－－－统一制不变螺距螺纹Unified thread3 k& W) ~, Y7 J' r+ w5 t
UNS－－－－统一制特殊螺纹Unified Special thread
7 \8 V1 p: W/ ~% T3 `3 h/ f' `( w NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old : p0 u, h7 M* U% Q8 ~$ I! N; s8 X
thread code Z,K )& r' y( `5 C; n% Z
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection6 r7 x/ K% |* Q8 Q( _
NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose* i; d' K( h: s% q: Y3 e; S
NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread( J1 ], y) ?4 j
NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
1 r2 N, s* ^7 E4 D8 O; c4 d3 T NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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