文档介绍：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
plete thread
plete 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