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machined by threaded ) O% `, o' ^/ [& h6 E% F螺纹加工方式 2 Z! f3 I% ?+ f) m% S5 H! k8 Ovalue prior to threading # O/ f* F8 B n. j攻螺纹之前的尺寸 2 v. F! ~6 k3 h- `5 e5 runless otherwise specified all dimensions are in inches and / Z# _% _7 d9 ^: Z8 ?除了特殊要求外,全部尺寸为英寸单位 , B- J2 k2 F$ }4 C1.overall length is minimum and longer needed to meet customer requirements are always allowed wothout7 E A5 e$ ]( g% R" B% U! B
3 |+ \1 P3 e/ s" e# aengingeering approval , U3 k' T; N: H8 D" r# @& | M7 C总体长度尺寸为最小,若按照客户要求增长是被允许的,也不需要工程师批准 0 V( Q5 L4 }, q/ a& a5 h: N( g2.machined surfaces 250 rms max,thd surfaces 125 rms max$ _, V, F7 e% } 机加工表面粗糙度为250 rms(Ra6.3),螺纹表面粗糙度125rms(Ra 3.2) 3 L" S$ S3 L% C: ?3.inside raoius 0.03-0.06 in.8 ~, X- ], u. D. J 内部半径为0.8-1.5,1.5为最大+ i1 E9 C! k; A) m' V( ] 4.corner breaks 0.015X45 in.( p* w) G' b9 n$ T& v 棱边倒角0.4X45 6 S. N' c" D% \8 G: Q5.concentricity between 2 mach.surf.within 0.015 t.i.r 7 u" \& P, t" K% o1 R两机器的同心度误差量在0.4内 0 k% E- k1 f8 M+ O6.normality,squareness,parallelism of machined surfaces .005per inch to a max.of.03 for a single surface ! r% S" ?4 t( y- ?- A/ d8 |+ Y一般的,机加工表面的垂直度和平行度.005/1 ,对单个表面.030/1 MAX 3 U2 U1 E/ e2 [8 h5 r( u1 Y7.all thread entry&exit angles to be 25-45 off of thread axis 6 U/ g9 T9 M, }8 i所有螺纹的起始和脱离角都是与螺纹中心轴夹角范围为25-45 deg{; y& @/ Z9 @4 V3 l8 F5 z
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