Ngā mata keri kei roto i te taonga IADC127 7 7/8 inihi (200mm)
Whakaahuatanga Hua
Ko ngā mata keri toka niho mira API kei roto i te taonga i runga i te utu iti rawa me te kounga pai rawa atu mai i te kaiwhakarato Haina.
1) Ko te hononga o te mata keri i hangaia kia rite ki te paerewa API.
2) Ka taea e mātou te whakarite i te rahi o te moka kia rite ki tō taputapu.
3) Ka taea te whiwhi i te hua pai rawa atu mā te whakamahi i te mata niho-rino i te papa ngohengohe. Mena ka kerihia i roto i te hanganga mārō, ka tūtohutia te mata tricone TCI.
4) Ko ngā hanganga tapahi me ngā hoahoa peera kua whakamātauhia kei te whakarato tonu i te taumata mahi me te pono teitei.
5) Mā te whakamahi i ngā waipēhi kua arotauhia ka nui ake te ROP mā te tango pai i ngā tapahi me te whakarite kia mau te toka hou ki ia hurihanga o te hanganga tapahi.
Ko te mata kōne hurihuri te taputapu e whakamahia whānuitia ana i roto i te keri hinu me te keri whenua. Ko te mahi a te mata kōne Tricone he patu, he kuru me te kutikuti i te toka i roto i te hanganga, kia taea ai e ia te urutau ki te hanganga ngohengohe, waenga me te pakeke. Ka taea te wehewehe i te mata kōne ki te mata kōne mira (niho maitai) me te mata kōne TCI e ai ki te momo niho.
Whakatakotoranga Hua
| Whakatakotoranga Taketake | |
| Rahi o te Mata Toka | 7 7/8" |
| 200mm | |
| Momo Moka | Mīti Tricone Niho Rino/ Mīti Tricone Niho Mira |
| Hononga Miro | 4 1/2 API REG PIN |
| Waehere IADC | IADC 127 |
| Momo Peera | Whēra Roera Hirihia |
| Hiri Whero | Hiri Rapa |
| Te Tiaki Rekereke | Kei te wātea |
| Te Tiaki i te Hiku o te Hāte | Kei te wātea |
| Momo Whakawhitiwhiti | Te Tohanga o te Paru |
| Āhua o te Keri | Keri hurihuri, keri pāmahana teitei, keri hohonu, keri motuka |
| Ngā pūwero | 3 |
| Ngā Tawhā Whakahaere | |
| WOB (Taumaha i runga i te Momo) | 13,486-38,199 pauna |
| 60-170KN | |
| RPM(r/min) | 60~180 |
| Te hanganga | Ko ngā hanganga ngohengohe he iti te kaha pēhi, he nui te kaha ki te keri, pērā i te paru, te gypsum, te tote, te pākeho ngohengohe, me ētahi atu. |
He rahi noa te 7 7/8 inihi mō te keri puna wai, he pai te mahi me ngā taputapu keri iti te kaha, ā, e whakamahia whānuitia ana puta noa i te ao.
Ko te mata kohatu tricone niho rino e kiia ana hoki he mata kohatu tricone niho mira ka taea te keri i te paru ngohengohe, tae atu ki te kōhatu kirikiri ngohengohe, he mata pakari ngā kōne ki te tungsten carbide, he porotaka te peera, ā, he pōro te raka, he peera hiri-O-ringi-HNBR kounga teitei, he pūnaha utu hinu te whakahinuhinu i te peera, he roa te ora mahi.
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