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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：7 z U! o% A4 n' R6 ?% ~9 D
4 @6 n& u9 V0 D5 `2 [ 美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°
c/ S$ X& M( ^8 G" H. m UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )' v4 Q! t( V' v3 G" r, L- [4 R
1 K8 p6 U7 y/ ^9 b$ F
UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
! \4 S) c" ?4 v* d' }4 o6 n
0 e* L" P6 \1 ^" [ ]' Z UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread" y, H8 \' t. C( ^- _
UN－－－－－统一制不变螺距螺纹Unified thread+ q9 f( `. Q- }8 c! y
UNS－－－－统一制特殊螺纹Unified Special thread4 {+ B H9 W# l" o$ H: R
NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old
& f0 ~7 S4 M7 C; y1 O thread code Z,K )
% e0 u1 l" Q8 ^* S D NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection
7 V% p0 s# P+ O, |' O7 p8 | NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose
9 P1 V% z8 w/ X* ?9 i5 y NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread4 W% Q" `, E0 _2 ~1 G: J
NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
, q3 `9 F6 C. y& n+ i( u' f NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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