I roto i ngā maina toka mārō o ngā Maunga Appalachian, he maha tonu taku noho i te taha o te mīhini keri kauhanga, e mātakitaki ana i ngā niho tapahi—whai muri i te 11 tau hei kaitohutohu mara mō ngā taputapu keri i te US, ko te pātai e pātai pinepinetia ana e ngā kaimaina ko: "Ko tēhea niho, te Pyramid, te Conical PDC rānei, ka whakaiti i te wā kore mahi?" I te wiki kua taha ake nei, i tētahi maina whakaranu shale-granit i Pennsylvania, i tāuta e auNgā Whakaurunga PDC Piramitime ngā Whakaurunga PDC Kōniko mai i Wuhan Ninestones Superabrasives Co., Ltd. i runga i te mīhini kotahi, ā, i whakahaerehia he whakamātautau mahi tonu mō ngā haora 96. Nā te mahi a ngā niho e rua i whakaatu mārama te kōwhiringa mō ngā maina o Amerika.

Te Whakatau a te Hanganga: Te Arorau Pakaru-Toka Porowhita o te Piramiti Tāpiri PDC

Ko te "kaha mahi" o te niho PDC kei roto katoa i tōna hanganga. Ko te Conical PDC Insert, me tōna hoahoa kōne āhua-kōmeke, ka whakamarara i te pānga, ā, he pai mō te toka ngohengohe ōrite. Heoi, ko teWhakaurunga PDC Piramiti, me tōna hoahoa koi taha-whā, kotahi hautoru noa iho te horahanga whakapā ki te paparanga toka ki te whakataurite ki ngā niho kōniko, ka rua te pēhanga ina ngau ki te toka mārō. I roto i ngā whakamātautau, ki te karāneti he 2.9 karamu/cm³ te matotoru, ko teWhakaurunga PDC Piramitika tapahia kia 18% te tere atu i ngā niho kōniko. Ka taea hoki e te pito koi te piri ki roto i ngā kapiti ririki o te paparanga toka, he rerekē ki te kikorangi e "paheke ana, e hurihuri ana." He "kī tēnei ki te pakaru i te toka" mō ngā hanganga toka matotoru pērā i ērā i te rohe o Appalachian.

Te Whakarerekētanga Whakarite mō ngā Horopaki Keri: Te Painga Utaina-Teitei o te Tāpiri PDC Pyramid

Kāore rawa ngā paparanga i ngā wāhi keri o Amerika i te "tātai kotahi"—i ngā maina whakarewa o Montana, ka konatunatua ngā uaua kirikiri me ngā uaua kuata, ā, me taurite ngā niho tapahi i waenga i te ngau ki ngā paparanga ngohengohe me te ātete ki ngā matūriki mārō. I roto i ngā whakamātautau, ko te pito koi o teWhakaurunga PDC Piramitii uru tika ki roto i te paparanga o te uaua quartz me te kore e pakaru, e whati rānei i ngā pito mārō. I muri i te 6 hāora o te mahi tonu, he iti noa te pakaru o te paparanga taimana o te Pyramid PDC Insert, ā, kua toru ngā maramara kua puta i ngā niho kōniko, me kati me te whakakapi. Mō ngā wāhi keri maina he uaua rawa ngā paparanga, ko teNgā Whakaurunga PDC PyramidHe tino pai ake te "manawanui" mō te tu atu ki ngā kawenga teitei.

 Te Tātari Utu o ngā Maina o Amerika: Ngā Painga Roa o ngā Whakaurunga PDC Pyramid

Ko te kaupapa matua a ngā kaipupuri maina o Amerika ko te "tātari utu-painga whai hua": I mua, i hiahiatia he whakakapinga o ngā niho tapahi e 8 ngā wā i te marama i tētahi maina waro i Texas ina whakamahia ana ngā niho kōniko, ā, i ngaro te 350 tana o te waro nā te wā kore mahi. Whai muri i te huri ki ngā Pyramid PDC Inserts, i heke te toharite o ngā whakakapinga niho ia marama ki te 3, ā, i whakaitihia ngā hāora mahi ngaro mā te 65%. I runga i te rerekētanga o te utu kotahi o ngā niho, i heke te utu katoa o ia marama mā te 25%. Koinei te painga o te "iti ake o ngā whakakapinga niho, nui ake te mahi"—mēnā kei te raru anō tō maina ki te toka mārō me ngā paparanga, ko te hoahoa koi o teWhakaurunga PDC Piramitika āwhina i a koe ki te whakatau i ēnei wero uaua.

Hei whakataurite i ngā whakaritenga motuhake o teWhakaurunga PDC Piramitime te Kōnihi PDC Whakauru, ki te hiahia rānei koe ki te whakarite i tētahi tauira e tika ana mō ngā maina o Amerika, tēnā whakapā mai ki a mātou mā ngā tikanga e whai ake nei:

- Waea: +86 17791389758

- Official Email: jeff@cnpdccutter.com

- Kei te paetukutuku mana ngā taipitopito mō te hua: https://www.cnpdccutter.com/

Mō te kaituhi: Ko Mark Harris, nō Ohio, USA, he 11 tau te wheako hei kaitohutohu hangarau mara mō ngā mata keri me ngā taputapu tapahi. He nui tana haereere i ngā maina o Appalachian me Midwestern, he tohunga ki ngā otinga urutau mara me te arotau utu mō ngā taputapu keri, ā, kua whakarato tohutohu whiriwhiri taputapu ki neke atu i te 20 ngā maina o US.