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金剛石岩芯鑽探用無縫鋼管
鑽孔公稱系列 | 鑽杆 | 岩芯外管 | 岩芯内管 | 套管 | 備注 | ||||||||
外徑(mm) | 壁厚(mm) | 内徑(mm) | 外徑(mm) | 壁厚(mm) | 内徑(mm) | 外徑(mm) | 壁厚(mm) | 内徑(mm) | 外徑(mm) | 壁厚(mm) | 内徑(mm) | ||
28 | 25 | 4 | 17 | 27 | 2.25 | 22.5 | 20.5 | 1.25 | 18 | / | / | / | 普通取芯 |
36 | 33 | 5 | 23 | 35 | 3 | 29 | 26.5 | 1.75 | 23 | 45 | 3.5 | 38 | |
46 | 43 | 6 | 31 | 45 | 3.5 | 38 | 35 | 2 | 31 | 58 | 4.5 | 49 | |
59 | 54 | 6 | 42 | 58 | 3.5 | 51 | 47.5 | 2 | 43.5 | 73 | 5 | 63 | |
75 | 67 | 6 | 55 | 73 | 3.75 | 65.5 | 62 | 2.75 | 56.5 | 89 | 4(5.25) | 81(78.5) | |
91 | 67 | 6 | 55 | 89 | 4 | 81 | 77 | 3.5 | 70 | 108 | 4.25(5.25) | 99.5(97.5) | |
46 | 43.5 | 4.75 | 34 | 45 | 4.5 | 36 | 31 | 2 | 27 | 58 | 4.5 | 49 | 繩索取芯 |
59 | 55.5 | 4.75 | 46 | 58 | 4.5 | 49 | 43 | 2.5 | 38 | 73 | 5 | 63 | |
75 | 71 | 5 | 61 | 73 | 5 | 63 | 56 | 2.5 | 51 | 89 | 4(5.25) | 81(78.5) |