Phakathi kwezingxenye eziyinkimbinkimbi ze-tricone drill bit, i-nozzle ivame ukubonakala njengengxenye encane, enganakwa kalula. Nokho ngempela inhliziyo ye-hydraulic enquma ukusebenza kahle kokubhola

Emkhakheni wemishini yokumba, izingcezu ze-roller cone ziyizingxenye eziyinhloko zokuphuka nokubhoboza amatshe. Kodwa-ke, naphezu kokuba zombili izingcezu ze-roller cone, izingcezu ze-roller cone eziq

I-Tricone drill bit bearings izingxenye ezisengozini kakhulu ezikhawulela impilo yesevisi yamathuluzi okumba ekuhloleni uwoyela negesi kanye nokwakhiwa okungenantambo. Kungani i-tricone drill bit bear

Ezindaweni zokuhlola uwoyela negesi kanye nezindawo zokumba i-geological, i-roller cone bit ifana "nesilwane sensimbi" esingena sijule emhlabathini, futhi ukuthwala kusebenza "njengenhliziyo" yalesi s

Ezimbonini ezinzima ezifana nezimayini nokumba uwoyela, ama-roller, njengezingxenye eziyinhloko zokuchotshozwa kwamadwala kanye nokudluliswa kwamandla, anomthelela oqondile ekusebenzeni kahle kokwakhi

Namuhla, ngokubona komthengi, sehlela ama-incoterms afudumele aphezulu, ukufundisa ukuthi ukhethe ngokusekelwe kwizidingo futhi ugweme amaphutha abucayi.

Ukwenza amathuluzi okushayela anikela ngesakhiwo esiqinile, ngenkathi ukwelashwa okushisa kuvunguza ubulukhuni babo obuqili - lezi zinqubo eziwumbhalo ezimbili zinika amandla amathuluzi okushayela uku

Ekuvuthayo kawoyela, i-PDC Drill Bits OutperForm Tricone Drictor Dricone Bits-Dripling ngokushesha futhi ihlala isikhathi eside. Imfihlo yabo? Ama-PDC ama-cutters, "amazinyo angenakuqhathaniswa" enziw

Uma kukhulunywa ngobuchwepheshe obuqondile bokuqondisa ukumba (HDD) ubuchwepheshe, umcabango wabantu abaningi bokuqala uthi, "Le ndlela ephezulu yezobuchwepheshe kufanele ibiza kakhulu, ngakwesokudla?