Ukwethulwa kafushane kwabasiki be-PDC

 

I-PDC drill Bits Design yanamuhla njenge-matrix ifana kancane neyaseminyakeni embalwa edlule. Amandla okuqina kanye nokumelana nomthelela kunyuke okungenani ngo-33%, futhi amandla ama-cutter brazes anyuke ngo-≈80%. Ngaso leso sikhathi, amajiyometri kanye nobuchwepheshe bezakhiwo ezisekelayo kuye kwaba ngcono, okuholele emikhiqizweni ye-matrix eqinile nekhiqizayo.
Izinto Zokusika
Ama-PDC Cutters enziwe nge-carbide substrate kanye ne-diamond grit. Ukushisa okuphezulu okungamadigri angu-2800 kanye nokucindezela okuphezulu okucishe kube ngu-1,000,000 psi kwakha i-compact. I-cobalt alloy nayo isebenza njenge-catalyst yenqubo ye-sintering. I-cobalt isiza ukubopha i-carbide nedayimane.
Inombolo yabasiki
Ngokuvamile sisebenzisa izisiki ezimbalwa kumabhithi e-PDC athambile njengoba umsiki ngamunye esusa ukujula okukhulu kokusikwa. Ngokwakheka okuqinile, kubalulekile ukusebenzisa abasiki abaningi ukunxephezela ukujula okuncane kokusikwa.

 

I-PDC Drill Bits - Usayizi Wokusika
Ngokwakheka okuthambile, sivamise ukukhetha abasiki abakhulu kunakumafomethi aqinile. Ngokuvamile, ububanzi obujwayelekile bosayizi busuka ku-8 mm kuye ku-19 mm kunoma ubani kancane.

 

 

Ngokuvamile sichaza ukuma kwe-rack cutter rack nge-rake yangemuva nama-engeli e-rake aseceleni.
●I-cutter back rake i-engeli eyethulwa ubuso bomsiki ekwakhekeni futhi ikalwa ukusuka mpo. Ama-engeli e-rake angemuva ayahluka phakathi, ngokuvamile, ku-15° ukuya ku-45°. Aziguquguquki ngokunqamula kancane, noma ukusuka kwencane kuye kwencane. Ubukhulu be-engeli ye-cutter reki ye-PDC drill bits buthinta Izinga Lokungena (ROP) kanye nokugqokwa kwe-cutter ukumelana. Njengoba i-engeli ye-rake ikhula, i-ROP iyancipha, kodwa ukumelana nokugqoka kuyanda njengoba umthwalo osetshenzisiwe manje usakazwa endaweni enkulu kakhulu. Abasiki be-PDC abanamareki amancane angemuva bathatha ukujula okukhulu kokusikwa futhi ngenxa yalokho banolaka, bakhiqiza i-Torque ephezulu, futhi bangaphansi kokuguga okusheshayo kanye nengozi enkulu yokulimala komthelela.

 

 

●Ireki eseceleni yokusika isilinganiso esilinganayo sokuma komsiki ukusuka kwesokunxele kuye kwesokudla. Ama-engeli aseceleni avame ukuba mancane. I-engeli eseceleni ye-rake isiza ukuhlanzwa kwembobo ngokuqondisa ukusikwa kwe-annulus ngomshini.