螺纹 英文术语.doc

螺纹中英文术语螺纹线helix螺纹screw thread圆柱螺纹 parallel screw thread圆锥螺纹 taper screw thread外螺纹external thread内螺纹 internal thread螺纹副 screw thread pair单线螺纹 single-start thread多线螺纹multi-start thread右旋螺纹right-hand thread左旋螺纹 left-hand thread完整螺纹 complete thread不完整螺纹incomplete thread螺尾 washout thread; vanish thread有效螺纹 useful thread螺纹牙形 form of thread原始三角形 fundamental triangle原始三角形高度 fundamental triangle height基本牙形 basic profile削平高度 depth of truncation设计牙型 design profile最大实体牙型 maximum material profile最小实体牙型 minimum material profile牙顶 crest牙底 root牙侧 flank承载牙侧 load flank非承载牙侧 clearance flank引导牙侧 leading flank跟随牙侧 following flank牙顶高 addendum牙底高 dedendum牙型高度 thread height牙型角 thread angle牙型半角 half of thread angle牙侧角 flank angle牙顶圆弧半径 radius of rounded crest牙底圆弧半径 radius of rounded roof公称直径nominal diameter大径 major diameter小径 minor diameter顶径 crest diameter底径 root diameter中径 pitch diameter单一中径 simple pitch diameter作用中径 virtual pitch diameter基准直径 gauge diameter螺纹轴线 axis of thread中径线 pitch line螺距 pitch导程 lead螺纹升角（导程角）lead angle螺纹牙厚 thread ridge thickness螺纹槽宽 thread groove width螺纹接触高度 depth of thread engagement大径间隙 major clearance小径间隙 minor clearance螺纹旋合长度 length of thread engagement基准平面 gauge plane基准距离 gauge length装配余量 fitting allowance旋紧余量 wrenching allowance行程 stroke螺纹精度 tolerance quality螺距偏差 deviation in pitch螺距累积误差 cumulative error in pitch导程偏差deviation in lead导程累积误差 cumulative error in lead螺旋线轴向误差 helix error in the axis牙侧角偏差 deviation of flank angle螺距误差中径当量 pitch diameter equivalent of error in pitch牙侧角误差中径当量 pitch diameter equivalent of error in flank angle基准距离偏差 deviation of gauge length基准平面的轴向位移偏差 deviation of datum axial drift行程偏差 deviation of stroke普通螺纹1.STRTHD2.plain thread3.regularscrewthreads4.regular screw threads粗牙普通螺纹1.coarse pitch thread2.coarse plain thread细牙普通螺纹1.fine pitch