6 Inihi PDC Drag Bit 4 parirau mō te keri poka mārō
Whakaahuatanga Hua
Ngā taipitopito o te mata wiri tōia PDC
1. Rahi: 55mm, 65mm, 75mm, 94mm, 108mm, 113mm, 133mm, 145mm, 153mm, 175mm, 185mm, 193mm
2. Momo mata: Momo pou, piko, parirau e toru, parirau e whā, parirau e rima, parirau e ono
3. Rahi tapahi PDC: 1303, 1304,1308,1603
4. Ngā rauemi o te tinana: Rino, te anga whakarewa Tungsten Carbide.
5. Kohatu e tika ana: kōhatu paru, kōhatu papa kōhatu, kōhatu kirikiri, kōhatu kirikiri me te karāneti me ētahi atu.
6. Tae: hina, koura, kikorangi, hei tono rānei a te kiritaki
Whakatakotoranga Hua
| Rahi Moka Tōia (Inihi) | 6 Inihi |
| Tōia te Hononga Moka | Pine auau 3 1/2" |
| Te rahinga o ngā mata | 4 |
| Te Hanganga o te Moka Tōia | Ngāwari, ngawari waenga, mārō, mārō waenga, tino mārō te hanganga. |
Tuhipoka: Kei te wātea te rahi motuhake mā te tauira, mā te tuhi rānei.
| Momo | Ahu | Hononga Miro | |
| inihi | mm | ||
| Momo Hipanga 3 mata | 3 1/2~17 1/2 | 89~445 | Rākau N,2 3/8 ~ 6 5/8 API REG / IF |
| Momo Chevron 3 mata | 3 1/2~8 | 89~203 | Rākau N,2 3/8 ~ 4 1/2 API REG / IF |
Ngā Mīti PDC mō te Keri Waro me te Mahi Kōhatu (3-parirau)
He rauemi tino mārō te mata keri PDC i honoa ki te taimana me te koranu mārō i raro i te pāmahana teitei. Ehara i te mea he mārō, he pakari hoki ōna āhuatanga mai i te taimana, engari he pai anō hoki tōna ātete ki te pānga me te mata nui mai i te koranu mārō. Ka tino whakapai ake i te pai o te keri, ā, koia te mata keri tino pai mō te mahi keri i te toka waenga me te mārō me te tino mārō.
Ko te kawe o ngā mata PDC he mea hanga, he mea pēhi hoki ki te maitai tino pai. Ka whakapakaritia tōna kaha miihini e ngā taputapu maimoatanga wera korehau aunoa katoa.
Ko te momo noa e whakamahi ana i te mata o te PDC Hainamana, ko te momo tino kaha ia e whakamahi ana i te mata o Amerika nā GE. Mā te whiriwhiri i te momo tika ka nui te ōwehenga o te mahi me te utu.
E whakamahia whānuitia ana ā mātou mata keri PDC i roto i ngā ahumahi katoa, pērā i te keri waro, te tūhuratanga hinu, te tūhuratanga whenua, te wai me te wai hiko, te rerewē me te rori, te hanga rua me ētahi atu.
Ka whakamahia ngā mata punga PDC parirau-rua (momo paerewa haurua-porowhita) ki te pakeke kāore e neke atu i te f8. Ko te roa o te mahi he 10-30 ngā wā o ngā mata koranu noa, ā, ka taea te whakapai ake i te whai huatanga mā te 60%. Haunga tēnā, kāore e hiahiatia he tatau mō ngā mata PDC, ka whakaiti i te kaha o te mahi, ā, ka āwhina hoki ki te penapena utu.
Ko GE, he kamupene Amerikana, te kaihanga o te rauemi matua o te mata mō ngā mata punga PDC parirau-rua (momo whakapakari porowhita-haurua). Ko te nui o te taimana he 1.5 ngā wā o ngā mata noa, he tino ātete ki te karawarawa, ā, ka whakamahia ki te toka waenga me te toka mārō (f<12).
Ko ngā mata PDC tino kaha e whakamahi ana i ngā taimana momo pōro hou kua hoahoatia mō tōna mata. Ngā āhuatanga: tere keri, ātete pānga teitei.
Ina mahi ngā mata keri, ka whakamahia te taha hei tapahi i ngā anga noa me ngā anga ōrite, ko te papa ia hei ārai i te nui o te keri, ā, ka āwhina i te whakaiti i te tūponotanga o te pakaru. Nā tēnā, ka pai ake te taumata keri uaua.
