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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：% r/ K& n8 h9 v
, p0 _' g% d; ~' F! V 美制螺纹（螺纹牙型角60度）Thread of American standard ( Thread pitch shape angle 60°
, m1 R" v6 X8 D T0 n UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )5 T4 L& m* O& ]% }# U
" y ]8 ^6 v- d0 R# w: E# L; a UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
4 a4 p" R% b2 x! T# s1 J* G, {0 I. c4 h" I
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread
: h9 x) z* l5 A2 } UN－－－－－统一制不变螺距螺纹Unified thread- d$ |3 F9 F6 P
UNS－－－－统一制特殊螺纹Unified Special thread
. M0 ^' f7 t& _9 } NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old ) F S7 c- G. c5 U
thread code Z,K )# p/ C: B2 j1 v2 c* o. b+ |! m8 Y) G8 B$ {8 O
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection) Q) [2 b2 Z( t: q# Q
NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose
! W3 { D5 Z* Y3 `5 w* c NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread. U4 U5 v; _2 c& F q* I
NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
) a, G) c! A8 b- ^ NGT－－－－气瓶用锥螺纹Special thread for gas cylinder |
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