I-Tungsten carbide Nozzle yePDC Drill Bit

    I-PDC drill bits zizixhobo ezisebenza kakuhle kakhulu zokuqhekeza amatye ezisetyenziswa kakhulu ekwembeni i-oyile nerhasi, ukuphononongwa kwejoloji, kunye namanye amacandelo. I-tungsten carbide nozzle yenye yezona zinto ziphambili. Ngokuqhelekileyo ifakelwa kumngxuma wamanzi we-PDC drill bit, igalela ulwelo olunoxinzelelo oluphezulu lokubhola ukunika ukupholisa, ukucoca,   kunye nokuncedisa ekuqhekezeni amatye. Ukusebenza kwayo kuchaphazela ngokuthe ngqo i-drill kodwa kunjalo

ubomi benkonzo kunye nokusebenza kakuhle kokomba.

I.  Indlela yoQhagamshelwano lweNozzle:

    Kufuneka ihambelane nomngxuma wamanzi we-PDC drill bit. Uxhulumaniso oluqhelekileyo ludibaniso olunemisonto (yangaphandle okanye yangaphakathi, ngokuchaneka kwe-3A-grade ukuya

    qinisekisa ukuba akukho kuvuza phantsi koxinzelelo oluphezulu). Eminye imilomo emincinci isebenzisa i-interference fit (i-press-fit), ethintela ukukhulula emva kofakelo.

II. Iimpawu zeMathiriyeli yoMlomo: iTungsten Carbide (WC)

    1. Ubunzima obuphezulu kunye nokumelana nokuGwathwa: Ubulukhuni be-tungsten carbide buyindawo yesibini emva kwedayimane, iyenza ikwazi ukumelana nokhukuliseko ngamasuntswana abrasive kulwelo lokomba (olufana nelitye lesanti kunye nenkunkuma yesinyithi), ukwandisa ubomi bombhobho.

    2. I-Corrosion Resistance: Imelana nokuhlwa okuvela kwizongezo zekhemikhali kulwelo lokomba (njengeetyuwa kunye neeasidi).

    3. Ukumelana nempembelelo: I-tungsten carbide isebenzisa i-cobalt (Co) njengesixhobo

isibophelelo, ukubonelela ngeqondo elithile lokuqina kunye nokuthintela ukuphuka okuqhekezayo.

III. Iimpawu zeCarbide Nozzle zoyilo lwesakhiwo

    1. IBore yangaphakathi eLungelweyo: Yehlisa isiphithiphithi kwaye iphucula ukusebenza kakuhle kolwelo. Iindidi eziqhelekileyo ziquka:

    2. I-Bore eNgqongileyo: Ilula kwaye ihlala ixesha elide, ifanelekile ukugaya okuqhelekileyo.

    3. I-Venturi: Isakhiwo esidibanisayo-esidibanisayo sonyusa izinga lokuhamba kwaye siphucula ukususwa kwe-chip.

    4. Ubungakanani obahlukeneyo: Umthamo wangaphakathi wombhobho (oqhelekileyo yi-6-16mm) ukhethwa ngokusekwe kwisantya sokuhamba kolwelo lokugrumba kunye nesantya esifunekayo sokutofa.

    Uyilo oluBuyiselwayo: Akukho mfuneko yokutshintsha yonke into yokubhola emva kokugqoka, ukunciphisa iindleko zokulondoloza.

IV. Imisebenzi ephambili ye-tungsten carbide nozzles yile ilandelayo:

    1. Ukupholisa abasiki

Abasiki be-PDC drill bit bavelisa ubushushu obuninzi njengoko bejikeleza ngesantya esiphezulu ukusika amatye.  Ukushisa okugqithisileyo kunokubangela i-carbonization kunye nokungaphumeleli kwe-diamond layer. Ulwelo olunoxinzelelo oluphezulu lokomba olukhutshiweyo kumbhobho we-tungsten carbide bususa ngokuthe ngqo obu bushushu, bugcina ubushushu be-cutter ngaphakathi koluhlu olukhuselekileyo   (ngokuqhelekileyo ngaphantsi kwama- 700°C)  kwaye ikhusela ukonakala kwe-thermal.

    2. Ukucoca i-Rock Cuttings

Ukusikwa kwamatye okuveliswe ngexesha lenkqubo yokusika kunokuqokelelana malunga nabasiki, kubangele "ibhola lodaka" (umxube wokusikwa kunye nolwelo lokugrumba olunamathela kwi-drill bit), ukunciphisa ukusebenza kakuhle kokuqhekeka kwamatye. Ijethi ye-high-speed fluid ephuma kwi-nozzle ichithakala ngokukhawuleza kwaye igxotha i-cuttings, igcina uqhagamshelwano olusebenzayo phakathi komsiki kunye nelitye.

    3. Ukwaphulwa kweLiwa okuncediswa ngamanzi

Ijethi esuka kumlomo (ngesantya ukuya kuthi ga kwi-100-200 m/s) ichaphazela umgangatho wamatye, idala iintanda zehydraulic. Esi siphumo se-synergistic, esidityaniswe nesenzo sokusika i-mechanical of cutters, sinciphisa ukuxhathisa ukuphulwa kwamatye, ukwandisa kakhulu isantya sokungena, ngakumbi kwiifom ezinzima.

V. Izicelo

Imilomo yeCarbide isetyenziswa ikakhulu kwezi meko zilandelayo:

    1. Ulwakhiwo oluthambileyo ukuya koluphakathi oluqinileyo, olufana nelitye eliphantsi komhlaba kunye nelitye lekalika, apho zincedisana nesenzo sokucheba esisebenzayo samasuntswana edrill ePDC.

    2.  Amaqula anzulu/athe tyaba afuna uxinzelelo oluphezulu lokumpompa kunye nolawulo olululo lwehydraulic, apho ukuthembeka kwemilomo ye-tungsten carbide ibalulekile.

    3.  Ulwakhiwo olurhabaxa kakhulu, olufana nelitye lesanti ye-quartz, lunikezela ukomelela kokunxiba xa kuthelekiswa nemilomo yentsimbi eqhelekileyo.