钻螺纹底孔所用钻头直径尺寸对照表.xls

2024-07-10

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螺纹钻底孔用钻头直径尺寸表.docx

表一:公制螺纹钻底孔用钻头直径尺寸表表二:圆柱管螺纹底孔钻头直径尺寸表（G）表四:60度圆锥螺纹底孔钻头直径尺寸表（Z或NPT）dtdzdtdzdtdzdndzdndz1粗0.250.7518粗2.515.436粗431.81/8288.81/16276.14细0.20.8细215.9细332.91/41911.71/8278.482粗0.41.61.516.5233.93/81915.21/41811细0.251.751171.534.51/21418.93/81814.423粗0.52.520粗2.5

2024-11-05

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螺纹钻底孔用钻头直径尺寸表.docx

英制螺纹钻底孔用钻头直径尺寸表计算公式：螺纹公称直径铸铁与青铜钢与黄铜3/16~5/8inD0=25(d-1/n)D0=25(d-1/n)+0.13/4~1½inD0=25(d-1/n)D0=25(d-1/n)+0.2D0攻螺纹前钻头直径（mm）d螺纹公称直径（in）n每英寸牙数公称直径(英寸)每英寸牙数钻头直径(毫米)公称直径(英寸)每英寸牙数钻头直径(毫米)铸铁、青铜钢、黄铜铸铁、青铜钢、黄铜3/16243.73.77/8919.119.31/4205.05.11821.9225/16186.46.5

2024-11-07

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螺纹钻底孔用钻头直径尺寸表.doc

英制螺纹钻底孔用钻头直径尺寸表计算公式：螺纹公称直径铸铁与青铜钢与黄铜3/16~5/8inD0=25(d-1/n)D0=25(d-1/n)+0.13/4~1½inD0=25(d-1/n)D0=25(d-1/n)+0.2D0攻螺纹前钻头直径（mm）d螺纹公称直径（in）n每英寸牙数公称直径(英寸)每英寸牙数钻头直径(毫米)公称直径(英寸)每英寸牙数钻头直径(毫米)铸铁、青铜钢、黄铜铸铁、青铜钢、黄铜3/16243.73.77/8919.119.31/4205.05.11821.9225/16186.46.5

2024-08-15

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螺纹底孔直径对照表.pdf

2024-06-30

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1.6MB