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發(fā)表于 2007-11-19 14:47:21
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英,、美制緊固件螺紋1 A6 n7 z: J% \. e
英寸制螺紋包括惠氏螺紋(Whitworth thread)和統(tǒng)一標(biāo)準(zhǔn)螺紋(Unified thread),。# S- w( q$ [: a1 l1 l N
惠氏螺紋是英國(guó)英寸制規(guī)格緊固件用普通螺紋,其牙型角為55°,,習(xí)慣用公稱直徑(單位為英寸inch)及每英寸牙數(shù)來(lái)表示,,尺寸單位采用符號(hào)“ ” ”。例如:1/2”-12BSW表示公稱直徑為1/2”的粗牙惠氏螺紋,。$ e+ h1 v7 h! ]! Z9 F; }1 x- j- r, _9 ]
統(tǒng)一標(biāo)準(zhǔn)螺紋是美國(guó)英寸制規(guī)格緊固件用普通螺紋,,其牙型角為60°,一般用號(hào)碼(公稱直徑﹤1/4”)或公稱直徑的英寸分?jǐn)?shù)(≥1/4”),、每英寸牙數(shù)和代號(hào)(UNC,、UNF)來(lái)表示。例如:1/2”-13UNC表示公稱直徑為1/2”的粗牙統(tǒng)一標(biāo)準(zhǔn)螺紋,。
9 Q' Z& {# e5 r/ g7 ^ ]3 u/ g惠氏螺紋和統(tǒng)一標(biāo)準(zhǔn)螺紋公稱直徑與每英寸牙數(shù)
, O* x) q0 l, Y8 g3 A螺紋大徑 統(tǒng)一標(biāo)準(zhǔn)螺紋ANSI B1.1-182 惠氏螺紋BS84-19566 i1 O6 R2 a$ ~7 f6 B# V
inch 尺寸代號(hào) 粗牙UNC 細(xì)牙UNF 尺寸代號(hào) 粗牙BSW 細(xì)牙BSF& h( y, M' ~) f7 V
0.0600 0# 80 ) e& z3 v* K* g* R
0.0625 1/16 60 8 B/ G% u- F. H$ H7 S5 ]# s
0.0730 1# 64 72
, L9 O& V7 h9 K" _' h% l0.0860 2# 56 64 $ p/ |9 X- e- p6 R) Y; ?
0.0938 3/32 48
; @, I6 [6 P% H" F' X2 E0.0990 3# 48 56 _1 V2 j. T( r3 l
0.1120 4# 40 48
7 `! h4 J8 D3 G; U7 M0.1250 5# 40 44 1/8 40 / W+ `+ [! l5 f
0.1380 6# 32 40
^% H. U. N$ g/ n0.1563 5/32 32 ( M0 u0 [2 M5 u
0.1640 8# 32 36
1 T& r- j! k! R X& \0.1875 3/16 24 32
9 ^0 ]: M0 X/ q5 [: |. A1 J+ j0.1900 10# 24 32 ; ^" q7 l$ G9 l/ |, |
0.2160 12# 24 28 4 j8 I6 h( w4 z) Z) A' K
0.2189 7/32 24 28* u6 D" b+ H! c. h
0.2500 1/4 20 28 1/4 20 26
/ W* X" m' S+ [& b/ X3 G& w# Z0.2812 9/32 26
) C$ K5 G" e/ k' w/ G; J' K8 _0.3125 5/16 18 24 5/16 18 22
2 [; @1 o+ G$ G# x2 g& A0 L, h0.3750 3/8 16 24 3/8 16 203 O0 W+ k5 |; P$ x
0.4375 7/16 14 20 7/16 14 18
& g- F( t0 s# }8 @) ?2 [0 M0.5000 1/2 13 20 1/2 12 16
6 ?0 }' Q$ y, ^% L5 w0.5625 9/16 12 18 9/16 12 16& Q; _# }# s1 A0 t% s4 \
0.6250 5/8 11 18 5/8 11 14
4 E; z: u% W, \9 _0.6875 11/16 11 14
) Y+ q, f' s( {0 C) X/ k0.7500 3/4 10 16 3/4 10 126 w& q$ q, r6 w# b1 C. ?8 |
0.8125 13/16 12
* t* j* d- n% Y& X0.8750 7/8 9 14 7/8 9 11
1 _" \( j0 m, w8 ~0 y- _% ]: d1.0000 1 8 12 1 8 10
) |3 K1 b8 r" b1 u; k5 V1.1250 1-1/8 7 12 1-1/8 7 9! B8 W2 E3 ]; W+ s0 [: x. E- j9 t' a
1.2500 1-1/4 7 12 1-1/4 7 9
8 ^1 z9 d, h' J! \- Z1.3750 1-3/8 6 12 1-3/8 8/ x# q0 g4 q4 k; R4 F) r
1.5000 1-1/2 6 12 1-1/2 6 8
& N3 ?7 _' u" U" V- R( C6 {1.6250 1-5/8 1-5/8 82 Z" V* T" a5 f% [! ^2 z/ E) S) |* P
1.7500 1-3/4 5 1-3/4 5 7
& g1 r* {6 ?- N/ C2.0000 2 4.5 2 4.5 7
+ K1 Z4 O+ ]7 S' D2.2500 2-1/4 4.5
/ q. Y; l& C8 e& ~3 o5 e2.5000 2-1/2 4 : o; S" w% ?# t/ {) T& n3 x$ S
2.7500 2-3/4 4 ) W9 ^% ]% Z A% l: p2 W9 m, j
3.0000 3 4 ; V. I2 H7 q3 A" o
3.2500 3-1/4 4
* a6 ~1 q& O- z( H) z: ~; w, R! k3.5000 3-1/2 4 4 k. y F2 ^3 f* a# S2 `
3.7500 3-3/4 4
% |) M+ V- f B4.0000 4 4
6 n: V% i v- C9 N# |8 J
6 U8 e: Y3 b% w1 a# b備注:各種英,、美制螺紋代號(hào)說(shuō)明
( C; G$ X8 ?. M. H BA-British Association
K% N1 W0 F4 K% M. X/ L BSW-British Standard Whitworth
" }1 M7 S) W5 O# h# @$ }' k BSF-British Standard Fine& n4 Q' n T4 F0 T8 `4 _
BSP-British Standard Pipe3 P+ q! b* `' u, p
BSPT-British Standard Pipe Tapered
* m( N( U2 v1 a( d6 a1 n BSC-British Standard Cycle4 q7 C( u- D' O/ x
UNC-Unified National Course ' t) k K7 \& l0 h T' a" [
UNF-Unified National Fine
7 ]! `' d/ O2 b UNEF-Unified National Extra Fine 7 y, L2 ~2 Z: Y0 A, y' V
UNM-Unified National Miniature
/ k) G- R2 l, e& D) ?" | NPT-National Pipe Tapered |
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