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发表于 2007-6-20 12:50:10
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用UNF 螺纹代替:
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" ~2 k! n3 ]- s% r 美制螺纹(螺纹牙型角60度)Thread of American standard ( Thread pitch shape angle 60°
. F( Y7 d; M0 m/ `9 c" P5 X3 D! K UNC----统一制粗牙螺纹(代替NC)Unified coarse pitch thread ( Instead of NC ). U8 o8 v8 T+ L' C# |) d
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UNF----统一制细牙螺纹(代替NF)Unified fine pitch thread ( Instead of NF )
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UNEF----统一制超细牙螺纹Unified superfine pitch thread
( t1 V8 c$ ~# q. w UN-----统一制不变螺距螺纹Unified thread
) K# g% _- a2 X. t UNS----统一制特殊螺纹Unified Special thread8 H. K0 s: ^1 e6 F3 S, c4 j
NPT----一般用途锥管螺纹(旧代号Z;K)Taper pipe thread for general purpose ( Old / L% C. z/ p, x
thread code Z,K )% H0 H+ a. ^8 B2 w6 c
NPSC----管接头直管内螺纹Internal straight pipe thread for connection: S- a: {# p- }& _
NPSM----设备上自由配合,机械连接用直管螺纹Straight pipe thread for general purpose
; L; C. `7 T% r, W& { NPTF----干密封锥管螺纹Dryseal taper pipe thread! ]* K% _9 E& K: ~7 M
NPSF----干密封燃油直管螺纹Dryseal straight pipe internal thread: O& D! @6 _# U5 F2 j+ p' ~
NGT----气瓶用锥螺纹Special thread for gas cylinder |
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