Gabatar da ɗan gajeren bayani game da masu yanke PDC

 

Tsarin aikin haƙa rami na PDC na yau a matsayin matrix ba shi da kama da na shekarun baya. Ƙarfin juriya da juriyar tasiri sun ƙaru da aƙalla kashi 33%, kuma ƙarfin injin yanke ƙarfe ya ƙaru da ≈80%. A lokaci guda, geometries da fasahar tsarin tallafi sun inganta, wanda ya haifar da samfuran matrix masu ƙarfi da inganci.
Kayan Yankan
Ana yin masu yanke PDC ne daga sinadarin carbide da kuma dutsen lu'u-lu'u. Zafin da ke da zafi kusan digiri 2800 da kuma matsin lamba mai yawa na kusan psi 1,000,000 ne ke samar da ƙaramin ƙarfi. Haka kuma sinadarin cobalt yana aiki a matsayin mai ƙara kuzari ga tsarin sintering. Cobalt yana taimakawa wajen haɗa carbide da lu'u-lu'u.
Adadin Masu Yanka
Yawancin lokaci muna amfani da ƙananan na'urorin yankewa akan ƙananan na'urorin PDC masu laushi yayin da kowane na'urar yankewa ke cire zurfin yankewa. Don ƙirƙirar tauri, yana da mahimmanci a yi amfani da ƙarin na'urori masu yankewa don rama ƙarancin zurfin yankewa.

 

Ragowar Rage Na'urar Hakowa ta PDC - Girman Masu Yanka
Ga masu laushin tsari, yawanci muna zaɓar manyan masu yankewa fiye da masu tauri. Yawanci, matsakaicin girman girma shine daga 8 mm zuwa 19 mm akan kowane yanki.

 

 

Gabaɗaya muna bayyana tsarin ƙirar rak ɗin yanka ta hanyar kusurwoyin rak na baya da kuma kusurwoyin rak na gefe.
●Rake na baya na yanke shine kusurwar da fuskar mai yanka ke nunawa zuwa ga samuwar kuma ana auna shi daga tsaye. Kusurwoyin rake na baya sun bambanta, yawanci, 15° zuwa 45°. Ba su da daidaito a kan rake, kuma ba daga bit zuwa bit ba. Girman kusurwar rake na yanke don rake na PDC yana shafar Rate Punetration (ROP) da juriyar yankewa ga lalacewa. Yayin da kusurwar rake ke ƙaruwa, ROP yana raguwa, amma juriya ga lalacewa yana ƙaruwa yayin da nauyin da aka sanya yanzu ya bazu a kan yanki mafi girma. Masu yanke PDC tare da ƙananan rake na baya suna ɗaukar zurfin yankewa mai yawa kuma saboda haka suna da ƙarfi, suna haifar da babban ƙarfin juyi, kuma suna fuskantar saurin lalacewa da haɗarin lalacewar tasiri.

 

 

●Rake na gefen yankawa daidai yake da ma'aunin yanayin mai yankawa daga hagu zuwa dama. Kusurwoyin rake na gefe yawanci ƙanana ne. Kusurwoyin rake na gefe suna taimakawa wajen tsaftace ramuka ta hanyar sarrafa yankewa zuwa ga annulus ta hanyar injiniya.