Polycrystalline Diamond Carbide Geli badhanka PDC Bit ee DTH
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Dheemanka polycrystalline (PCD) waa dheeman synthetic. Qalabka PCD wuxuu bixiyaa iska caabin heersare ah oo labbiska ah oo ku jira walxaha aadka u xoqaya.
PCD Kaarbide geli badhanka waxoogaa waxaanu ugu yeedhnaa PDC Button Bit, inta badan loo isticmaalo DTH Bit, RC Bit, Top Hammer Bit. Qeexitaannadaas waxaa loo isticmaalaa kaxaynta dhagaxa, macdanta iyo sahaminta juqraafiga.
Waxa jira wax yar oo kale oo Polycrystalline Diamond Compact kaas oo sidoo kale loo yaqaan PDC Bit oo leh 3-7 baalal saliid iyo gaaska. Laakiin ma aha inaan halkan ka hadlayno.
Qaybta PDC ee leh karbide PCD ayaa aad uga dheer adeegaya cimriga marka loo eego tungsten carbide bit, ie, qiyaastii 5-7 wakhti intee ka dheer. Sidaas awgeed waxa aad iyo aad ugu sii caan baxaysa goobta shaqada ee macdanta.
Qeexitaanka qaniinyada DTH:
| inch dubbe | Dhexroorka qaniinyada | Shank | |
| Metric | Inji | ||
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 |
| M30/DHD3.5/BR3 | |||
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 |
| SD4/M40/QL40 | |||
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 |
| SD5/M50/QL50/BR5 | |||
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 |
| M60/QL60/Bulroc BR6 | |||
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 |
| QL80/M80 | |||
| 10" | 254mm-380mm | 10"-15" | SD10 |
| NUMA100 | |||
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12 |
| NUMA120/NUMA125 | |||
| Si aad u ogaato macluumaadka 12-30 inch bits, nala soo xidhiidh hadda | |||
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