PDC KAPA PCD DRILL BUT? PHAPANG KE ENG?
Karolo ea ho phunya ea PDC e bolela karolo ea mantlha ea Polycrystalline Diamond Cutter
Liliba tsa pele e ne e le liliba tsa metsi, mekoti e sa tebang e chekiloeng ka letsoho libakeng tseo tafole ea metsi e neng e atamela bokaholimo ba metsi, hangata e nang le mabota a majoe kapa a lehong a apereng .
Li-PDC li etsoa ka ho kopanya mekhahlelo e meng ea litaemane tsa polycrystalline (PCD) le lera la carbide liner e samentetsoeng mochesong o phahameng le khatellong e phahameng.
Li-PDC ke tse ling tsa lisebelisoa tsohle tsa taemane tse nang le lithapo tse ngata.
PCD e bolela feela Polycrystalline Diamond: Hangata PCD e etsoa ka ho silafatsa likristale tse ngata tsa taemane tse nyane tse nyane mochesong o phahameng le khatellong e phahameng. PCD e na le ho taboha hantle le botsitso bo botle ba mocheso, 'me e sebelisoa ho etsa likotoana tsa ho phunya tsa jeoloji.
PDC e na le melemo ea ho hanyetsa ho tsofala ha daemane ka lebaka la ho tiea ha carbide.
Re fana ka dikotwana tsa PDC tse entsweng ka mefuta e fapaneng ya disehi tse bōpehileng jwalo ka dibopeho kapa dikotwana tsa taemane tse nang le dikristale tse ngata (PDC) tse betlilweng hodima mmele.
Li-cutter tsa PDC li entsoe ka substrate ea carbide le daemane. Mocheso o phahameng oa likhato tse ka bang 2800 le khatello e phahameng ea hoo e ka bang 1,000,000 psi li etsa compact. Motsoako oa cobalt le oona o teng 'me o sebetsa e le sesosa sa ts'ebetso ea ho sila. Cobalt e thusa ho kopanya carbide le daemane.
Ka kakaretso, li-cutter tse kholo (19mm ho isa ho 25mm) li mabifi ho feta li-cutter tse nyane. Leha ho le joalo, li ka eketsa ho feto-fetoha ha torque.
Ho bontšitsoe hore lisehi tse nyane (8mm, 10mm, 13mm le 16mm) li cheka ka ROP e phahameng ho feta lisehi tse kholo lits'ebetsong tse itseng. Tšebeliso e 'ngoe e joalo ke lejoe la mokoetla mohlala.
Ho phaella moo, disehi tse nyane di hlahisa dikotwana tse nyane ha disehi tse kgolo di hlahisa dikotwana tse kgolo. Dikotwana tse kgolo di ka baka mathata ka ho hlwekisa masoba haeba mokelikeli wa ho tjheka o sa kgone ho jara dikotwana hodimo.
(1) kapa (2) E bonolo le e khomarelang - Libopeho tse tjhekwang haholo tse kang letsopa, marl, gumbo le lehlabathe le sa kopanngwang.
(3) Metsi a bonolo-a mahareng-a tlase a matla a ho hatella, lehlabathe la shale le la anhydrite a nang le mealo e thata e kopantsweng.
(4) Lehlabathe, choko, anhydrite le shale tse nang le matla a mahareng a ho hatella.
(6) E mahareng e thata - Matla a ho hatella a phahameng ka lehlabathe le se nang bohale kapa le se nang bohale, shale, lime le anhydrite.
(7) Matla a ho hatella a thata-a phahameng a nang le mealo e bohale ea lehlabathe kapa lejoe la silt.
(8) Dibopeho tse thata haholo tse teteaneng le tse bohale tse kang quartzite le lefika la seretse se chesang.
SEBOPELO SA HO SEHA SA PDC
Li-pdc bits tsa mofuta oa sebopeho tse bonolo haholo (1) ho isa ho tse mahareng (4) li na le boholo bo le bong bo ka sehloohong ba seha sa PDC. Sebopeho sa seha sa PDC se bontšoa ka tsela e latelang:
2 - karolo ena e na le boholo ba lisehi tsa 19mm
3 - karolo ena e na le boholo ba lisehi tsa 13 mm
4 – karolo ena e na le boholo ba disekere tsa 8 mm
Likotoana tsa PDC
Nako ea poso: Phato-31-2022