螺纹规格d×p | k×d | 螺纹护套安装后长度L(mm) | 钻头直径do(mm) | 螺纹护套自由状态下外径Dz(mm) | 自由状态螺套圈数N(≈) |
2×0.4 | 1d 1.5d 2d | 2 3 4 | 2 | 2.6-2.8 | 2.9 济宁机械设计研究院4.7 6.5 |
2.5×0.45 | 1d 1.5d 2d | 2.5 3.75 5 | 2.6 | 3.3-3.5 | 3.5 5.9 8.1 |
3×0.5 | 1d 1.5d 2d | 3 4.5 6 | 3.1 | 3.8-4.0 | 4 6.3 8.7 |
4×0.7 | 1d 1.5d 2d | 4 6 8 | 4.1 | 5.15-5.35 | 3.7 6 8.4 |
5×0.8 | 1d 1.5d 2d | 5 7.5 10 | 5.2 | 6.35-6.6 | 4.3 6.9 9.7 |
6×1 | 1d 1.5d 2d | 中国市场经济6 9 12 | 6.2 | 7.6-7.85 | 4.2 7 9.6 |
7×1 | 1d 1.5d 2d | 7 10.5 14 | 7.2 | 8.65-8.9 | 5.4 8.5 11.6 |
8×1 | 1d 1.5d 2d | 8 12 16 | 8.2 | 9.85-10.1 | 6.1 9.5 13 |
8×1.25 | 1d 1.5d 2d | 8 12 16 | 8.3 | 9.85-10.1 | 4.7 7.4 10.6 |
10×1 | 1d 1.5d 2d | 10 15 20 | 10.2 | 12.1-12.5 | 7.6 12 16.3 |
10×1.5 | 1d 1.5d 2d | 10 15 20 | 10.3 | 12.1-12.5 | 5 8 11.2 |
12×1.5 | 1d 1.5d 2d | 12 18 24 | 12.4 | 14.4-14.8 | 6.2 9.8 13.5 |
12×1.75 | 1d 1.5d 2d | 12 18 24 | 12.4 | 14.4-14.8 | 5.2 8.4 11.7 |
14×1.5 | 1d 1.5d 2d | 14 21 28 | 14.4 | 17.2-17.7 | 7 11.2 15.3 |
16×1.5 | 1d 1.5d 2d | 16 24 32 | 16.4 | 19.4-19.9 | 8.3 13 17.7 |
16×2 | 1d 1.5d 全文搜索引擎2d | 16 24 32 | 16.5 | 19.4-19.9 | 6.0 9.7 13.3 |
18×1.5 | 0.5d 1.0d 1.5d | 9 18 27 | 18.4 | 21.5-22 | 4.4 9.5 15 |
20×1.5 | 0.75d 1d 1.5d | 15 20 30 | 20.4 | 23.7-24.2 | 8 10.7 16.7 |
20×2.5 | 1d 1.5d 2d | 迪布韦克20 30 40 | 20.5 | 23.7-24.2 | 6.3 10 13.7 |
22×1.5 | 0.75d 1d 1.5d | 16.5 22 33 | 22.4 | 26.3-26.8 | 8.6 11.7 18 |
24×1.5 | 0.75d 1d 1.5d | 18 24 36 | 24.4 | 28.6-29.1 | 9.5 13 19.8 |
24×3 | 1d 1.5d 2d | 24 36 48 | 健康心理学24.6 | 28.6-29.1 | 6.3 小镇论坛10 14 |
26×1.5 | 0.5d 0.75d 1d | 13 19.5 26 | 26.4 | 30.5-31 | 6.7 10.7 14.6 |
27×1.5 | 0.5d 0.75d 1d | 13.5 20.3 27 | 27.4 | 32.2-32.7 | 6.7 10.7 14.6 |
27×2 | 0.5d 0.75d 1d | 13.5 20.3 27 | 27.5 | 32.2-32.7 | 6.7 10.7 14.6 |
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