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螺紋大徑:Major Diam 中徑:Pitch diam 底徑:Minor diam 通止規:Go/No go gage 機械性能:mechanical and physical properties unified thread 統一英製螺紋 Lustrate hydrogen after galvanizing to avoid hydrogen embrittlement 鍍後去氫,防止氫脆 Case carburization 表麵滲碳 With across flats 對邊 With across corners 對角 Radius of fillet:頭下圓角 Transition thread length 過度螺紋 Wrenching height 扳擰高度 Rockwell 鉻氏硬度 Vickers 維氏硬度 Brinell 布氏硬度 metallography microscope 金相顯微鏡 Salt spray device 鹽霧試驗箱 Tensile testing machine 拉力試驗機 Cold forming 冷打 Hot forging 紅鐓 P C 8 = property class 8 機械性能8級 原材料:Raw material 球化退火:Annealing 冷拔:Drawing 冷鐓:Forming 機加工:Machining 螺紋成型:Roll Threading 熱處理:heat-treatment 表麵處理:finish 去氫:Lustrating hydrogen 檢驗:Inspection 包裝:Packing 入庫:Stocking 車床:lathe 磨製:grinding 紅打:hot forging 衝壓:punching
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