
Fihla Okuqukethwe Indawo Yesevisi engu-1 2 Ukukhetha Okuhlanganisiwe Kwe-PDC 3 Ubuchwepheshe Benhlanganisela Ye-PDC...
Ama-Screw Motors, ama-Rotary Steerable Systems, Amathuluzi Okugaya i-Downhole, njll.
Ukukhetha izinto ezihlanganisiwe ezinokumelana nomthelela omkhulu kanye nokumelana nokugqoka okuphezulu.
1. I-Wear Resistance: Isilinganiso esimaphakathi sokugqoka kwevolumu enkulu kuno-400 x 10,000;
2. Ukumelana Nokushisa: Izinga lokushisa lokumelana nokushisa elingekho ngaphansi kuka-700℃;
3. Ukumelana Nomthelela: Amandla omthelela akhulayo ≥ 40J;
4. Ungqimba Lwedayimane: Ngaphansi kwesibonakhulu (ukukhulisa okungu-20x), akukho ukuqhekeka okubonakalayo, akukho ukungalingani okusobala, awekho amaphutha anobubanzi > 0.15mm nokujula > 0.15mm avunyelwe, futhi usayizi omkhulu wokuchipha onqenqemeni ungu-<0.15mm.
| usayizi | |||||
| Ukufakwa kwenhlanganisela ye-PDC emelana nomthelela ehlanganisiwe | |||||
| 1308 | 1313 | 1608 | 1613 | ||
| ububanzi (D) mm | 13.44±0.025 | 13.44±0.025 | 15.875±0.025 | 15.875±0.025 | |
| ukuphakama (h) mm | 8.00±0.05 | 13.2±0.05 | 8±0.05 | 13.2±0.05 | |
| ukujiya (t) mm | 2.2±0.15 | 2.2±0.15 | 2.2±0.15 | 2.2±0.15 | |
| I-DiamondChamfer | |||||
| omkhulu c1 | 0.3/0.4mm | ||||
| engela a1 | 45° | ||||
| I-Hard alloy chamfering | |||||
| omkhulu c2 | 0.40/0.76mm | ||||
| engela a2 | 45° | ||||