Sehahi sa PDC se bōpehileng

PDC cutter ke karolo ea bohlokoa ea mochini oa ho cheka, hape ke sebaka sa ho cheka. Libopeho tse fapaneng tsa li-cutters tsa PDC li reretsoe ho kopana le maemo a fapaneng a mosebetsi. Ho khetha sebopeho se nepahetseng ke habohlokoa haholo, ho ntlafatsa katleho ea hau ea ho sebetsa le ho fokotsa litšenyehelo tsa ho cheka.

Silinda e tloaelehileng ea PDC cutter ha se eona feela sebopeho sa batho ba sehang 'marakeng kajeno. Li-cutters tsa PDC tse nang le sebopeho li ntse li fetoha karolong e 'ngoe le e 'ngoe ea lebala la ho cheka. Hore na o batla ROP e eketsehileng, pholiso e ntlafalitsoeng, botebo bo betere ba ho itšeha le ho theha, kapa likarolo tse betere tsa ho itšeha, o ka fumana tharollo kamehla ho ZZBETTER. Sehlopha sa rona sa boenjiniere se qapile mefuta e mengata ea libopeho tse nang le ts'ebetso e ikhethang bakeng sa ho cheka ka mekoti. hape re sebelisana 'moho le bareki ba rona ho theha libopeho tse entsoeng ka mahlakoreng a mabeli kapa ho aha meralo e ntlafalitsoeng ke bona.

Hajoale, li-cutters tse bōpehileng tseo re li hlahisitseng ke PDC conical cutters, parabolic cutters, spherical cutters, ridged PDC cutters, le li-cutters tse ling tse sa tloaelehang.

Spherical PDC Cutter

Spherical PDC Cutter e boetse e rehile likonopo tsa dome tsa PDC, li sebelisoa haholo bakeng sa likotoana tsa ho cheka tsa DTH. Ho phunya DTH ke mokhoa o tloaelehileng oa indasteri oa ho cheka majoe a thata. DTH =ho theosa ka lesoba hobane hamore e theohela tlase- the –hole. Likotoana tsa hamore tsa Down-the-hole (DTH) li sebelisoa ka lihamore tsa Down-the-hole bakeng sa ho cheka masoba ka mefuta e mengata ea majoe. Li-drill bits tsa DTH li fumaneha ka boholo bo fapaneng le mekhoa e fapaneng e le hore li khone ho phunya mefuta e mengata ea boholo ba masoba.

Conical PDC seha

PDC conical cutter e bonts'a khanyetso e phahameng haholo ea abrasion mme e atleha ho seha mafika a thata a abrasive ntle le moaparo o hlokomelehang, e leng mohato oa bohlokoa o lebisang sepheong sa likotoana tsa bophelo bo bolelele bakeng sa libopeho tse thata libakeng tse chesang.

Sekhahla sa PDC se khabisitsoeng

Karolo e sehang ea taemane ea Ridged e na le geometry e ikhethang e kopanyang ketso ea ho kuta ea li-cutters tse tloaelehileng tsa PDC le khatello ea li-tungsten carbide inserts (TCI). Karolo ea daemane e makukuno e ka sebelisoa ka matrix le likotoana tsa 'mele oa tšepe ho phunya likheo tse sa tloaelehang ka nako e telele ho tsepameng, mothinya le lateral. Mosebetsi oa ho senya ho o mong, melemo ke:

(1) Keketseho ea ho itšeha bakeng sa ntlafatso ea hang-hang ea ROP

(2) Taolo e ntlafalitsoeng lits'ebetsong tsa tataiso

Haeba u thahasella lihlahisoa tsa tungsten carbide 'me u batla boitsebiso bo eketsehileng le lintlha tse ling, u ka RE THUTA ka mohala kapa ka poso ka letsohong le letšehali, kapa U RE THUSE MAIL botlaaseng ba leqephe.