Nawa kuka sani game da abin yankan PDC?

Game da PDC (Polycrystalline Diamond Compact) Cutter

PDC (Polycrystalline Diamond Compact) Cutter wani nau'i ne mai wuyar gaskeabu wanda ya haɗa lu'u-lu'u polycrystalline tare da tungsten carbide substrate a matsanancin zafin jiki da matsa lamba.

Ƙirƙirar abin yankan PDC ya haifar datsayayyen abun yankaa kan gaba a cikin masana'antar hakowa, kuma ra'ayin nan take ya zama sananne. Tun dagashegeAyyukan masu yankan PDC sun fi tasiri fiye da aikin murkushe maɓalli ko ɗan haƙori, ƙayyadaddun yankan- bitsuna cikin babban buƙata.

A 1982, PDC drill bits ya kai kashi 2 cikin dari na jimlar ƙafar da aka haƙa. A cikin 2010, 65% na jimlar yankin da aka haƙa ya kasance ta PDC.

Yadda ake yin Cutters na PDC? 

PDC Cutters an yi su daga tungsten carbide substrate da grit na lu'u-lu'u na roba. An yi shi ta amfani da haɗuwa da babban zafin jiki da matsa lamba mai girma tare da mai kara kuzari na cobalt alloy don taimakawa haɗin lu'u-lu'u da carbide yayin aikin sintiri. A lokacin aikin sanyaya, tungsten carbide yana raguwa a cikin saurin sau 2.5 fiye da lu'u-lu'u, wanda ya haɗu da Diamond da Tungsten Carbide tare sannan kuma ya samar da Cutter PDC.

Halaye da Aikace-aikace

Tun da PDC Cutters ya ƙunshi lu'u-lu'u grit da tungsten carbide substrate, yana haɗa fa'idodin duka lu'u-lu'u da tungsten carbide.： 

1. High abrasion resistant

2. High tasiri resistant

3. High thermal barga

Yanzu PDC Cutters ana amfani da su sosai don hakar mai, iskar gas da binciken ƙasa, hakar ma'adinai, da sauran aikace-aikacen hakowa da niƙa, kayan aiki kamar PDC Drill Bits, irin su Karfe PDC Drill Bits & Matrix PDC Drill Bits don hako mai Tri-cone PDC Drill Bits don hakar kwal.

Iyakance

Lalacewar tasiri, lalacewar zafi, da lalacewa duk suna hana aikin rawar soja kuma yana iya faruwa a cikin madaidaicin tsarin yanayin ƙasa. Koyaya, mafi wahala samuwar ɗan PDC don yin rawar jiki shine masu ɓarna.

Babban mai yankan VS

A matsayinka na yau da kullun, manyan masu yankan (19mm zuwa 25mm) sun fi ƙanƙara fiye da ƙananan yankan. Duk da haka, za su iya ƙara jujjuyawar juzu'i. Bugu da ƙari, idan ba a ƙirƙira BHA  don ɗaukar ƙarar tashin hankali ba, rashin kwanciyar hankali na iya haifar da.

An nuna ƙananan masu yankan (8mm, 10mm, 13mm, da 16mm) don yin rawar jiki a ROP mafi girma fiye da manyan masu yankan a wasu aikace-aikace. Ɗayan irin wannan aikace-aikacen shine farar ƙasa.
Har ila yau, an tsara ragowa tare da ƙananan masu yankan amma yawancin su na iya jure tasiri mai girma lodi. 

Bugu da ƙari, ƙananan ƙwanƙwasa suna samar da ƙananan yankan yayin da manyan masu yankan ke samar da mafi girma. Manyan yanka na iya haifar da matsala tare da tsaftace rami idan ruwan hakowa ba zai iya ɗaukar yankan sama da annulus ba.

siffar abun yanka

Siffar PDC da aka fi sani da ita ita ce Silinda, wani ɓangare saboda ana iya shirya masu yankan silinda cikin sauƙi a cikin ƙaƙƙarfan bayanin bayanan da aka bayar don cimma manyan abubuwan yankan. Injin fitar da waya na lantarki na iya yanke daidai da siffata teburan lu'u-lu'u na PDC. Haɗin kai marar tsari tsakanin teburin lu'u-lu'u da ƙasa yana rage saura damuwa. Waɗannan fasalulluka suna haɓaka juriya ga guntu, spalling, da lalata teburin lu'u-lu'u. Sauran ƙirar ƙirar keɓancewa suna haɓaka juriyar tasiri ta rage ragowar matakan damuwa.