I. Sauke na Thermal da cobalt cire PDC
A cikin babban matsin lamba na PDC na PDC, Cobalt Ayyuka a matsayin mai daukar hankali don inganta hancin Layer da Tungyten Carbix ya dace da tsayayyen jijiyoyin jiki da yawa da ƙarfi.
Diamonds Heather juriya yana da iyaka. A karkashin matsin lamba na ATMOSPHERIC, farfajiya na lu'u-lu'u na iya canza yanayin zafi da kewayen 900 ℃ ko sama. Yayin amfani, PDC na gargajiya na gargajiya suna lalata kusan 750 ℃. A lokacin da ake yin hako dutse ta bakin rawaya, PDCs na iya isa wannan zafin jiki sauƙaƙe, da kuma yawan zafin jiki na cobalt (1495 ° C).
Idan aka kwatanta da tsarkakakken lu'u-lu'u, saboda kasancewar zabin Combalt, sabobin tuba na lu'u-lu'u zuwa zane a ƙananan yanayin zafi. A sakamakon haka, saka a lu'u-lu'u shine lalacewa ta hanyar hoto sakamakon zafin rana mai zurfi. Bugu da ƙari, ingantaccen ƙarancin tasirin da ke haifar da cobalt ya fi na lu'u-lu'u, don haka lokacin dumama, haɗin tsakanin alkawura na yau da kullun za a iya katse ta hanyar fadada cobalt.
A cikin 1983, masu binciken sun yi magani na lu'u-lu'u a saman shimfidar yadudduka PDC, yana inganta aikin hawayen PDC. Koyaya, wannan kirkirar bai karɓi da shi ya cancanci ba. Bai kasance ba sai bayan 2000 cewa, tare da fahimtar yadudduka na PDC, masu ba da gudummawar soja sun fara amfani da wannan fasaha zuwa haƙƙin PDC da aka fara amfani da su a cikin dutsen PDC. Hakora da aka bi da wannan hanyar sun dace da nau'ikan sabani na sabuwa tare da ingantaccen suturar mashin da ke tattare da yanayin "De-Colobal" hakora.
Ana yin abin da ake kira "D-CHeralt" a cikin hanyar gargajiya don yin PDC, sannan kuma farfajiya ta lu'u-lu'u a cikin acid ɗin da acid acid din ta hanyar acid acid acid. Zurfin cobalt cire na iya isa game da microns 200.
An gudanar da gwajin-aiki mai nauyi a kan hakoran PDC guda biyu (daya daga cikin wanda ya dauki nauyin compaly compaly a farfajiyar lu'u-lu'u. Bayan yankan 5000m na Granite, an gano cewa sanyin PDC da ba'a cire shi ba ta fara ƙaruwa sosai. Da bambanci, cobalt-cire PDC kiyaye saurin saurin yanke kamar 15000m na dutsen.
2. Hanyar gano PDC
Akwai hanyoyi iri guda biyu don gano haƙoran PDC, suna gwaji da gwajin rashin lalacewa.
1. Gwajin lalacewa
Waɗannan gwaje-gwajen an yi nufin daidaita yanayin ƙasa kamar yadda zai yiwu don kimanta aikin kayan haƙora a ƙarƙashin irin waɗannan halaye. Manyan nau'ikan gwaji guda biyu suna sa gwaji da maganganun juriya da tasiri.
(1) sanya jarabawar juriya
Ana amfani da nau'ikan kayan aiki uku don yin gwajin juriya:
A. Lathe tsaye (VTL)
A yayin gwajin, na farko gyara PDC zuwa VTL LATHE DA sanya samfurin dutsen (yawanci granite) kusa da PDC. Sannan juya samfurin dutsen a kusa da latti a wani saurin. Yankakken PDC Bit a cikin samfurin dutsen tare da takamaiman zurfin. Lokacin amfani da Granite don gwaji, wannan zurfin yankan shine ƙasa da 1 mm. Wannan gwajin na iya zama bushe ko rigar. A cikin "gwajin VTL," lokacin da PDC Bit ya yanke ta hannun dutsen, ba a amfani da sanyaya; Duk zafin rana da aka haifar ya shiga cikin PDC, yana hanzarta tsarin zane-zane na lu'u-lu'u. Wannan hanyar gwajin tana samar da kyakkyawan sakamako yayin kimantawa PDC ta yanke shawara a cikin yanayi da ke buƙatar matsin lamba mai ƙarfi ko saurin ƙarfin juyawa.
Gwajin "rigar VTL" yana gano rayuwar PDC a cikin matsakaici mai dumama ta hanyar sanyaya hakora na PDC tare da ruwa ko iska yayin gwaji. Sabili da haka, babban abin da ya sa tushen wannan gwajin shine nika na samfurin dutsen maimakon mai dumama.
B, kwance latti
Hakanan ana aiwatar da wannan gwajin tare da granite, kuma ƙa'idar gwajin tana da mahimmanci kamar VTL. Lokaci na gwaji ne kawai 'yan mintoci kaɗan, kuma girgiza thermal girgizar tsakanin Granis da PDC hakora yana da iyaka.
PDC Granite sunyi amfani da su ta hanyar masu samar da PDC Gear zasu bambanta. Misali, sigogin gwajin sunyi amfani da sigogin gwajin da kamfanin diji a Amurka ba iri ɗaya bane, amma suna amfani da kayan masarufi iri ɗaya tare da karancin rawar jiki da ƙarfi na 190mpa.
C. Abrasion Raco Aiwatar da kayan aiki
A karkashin ƙayyadadden yanayin, ana amfani da lu'u-lu'u na PDC na damfara carbide carbide, kuma ana kiran ragamar PDC na PDC, wanda ake kira Saka rabo.
(2) Sakamako Jarumi
Hanyar don tayar da gwajin ya ƙunshi shigar da haƙoran PDC a wani kusurwa na digiri na 15-25 sannan kuma ya saukar da abu daga wani tsayi don kashe lu'u-lu'u a tsaye. Weight da tsawo na abin fadakarwa na nuna tasirin makamashi na gogewa da haƙoran gwajin, wanda zai iya ƙara yawan Jouke 100. Kowane haƙori zai iya shafar kowane haƙori sau 3-7 har sai an gwada shi gaba. Gabaɗaya, aƙalla samfuran 10 na kowane irin haƙori ana gwada shi a kowane matakin makamashi. Tunda akwai kewayon a cikin juriya hakoran don tasiri, sakamakon gwajin a matakin samar da makamashi sune yanki mai matsakaicin yanki na kowane hakori.
2. Gwaji mara lalacewa
Mafi yawan amfani da dabarun gwajin rashin daidaituwa (wanin gani da kuma dubawa na microscopic) shine siket na ultrasonic (CScan).
Fasaha C bincika na iya gano ƙananan lahani da ƙayyade wurin da girman lahani. Lokacin yin wannan gwajin, da farko sanya PDC hakori a cikin tanki na ruwa, sannan bincika tare da bincike na ultrasonic;
An sake buga wannan labarin daga "Hanyar sadarwa ta zamani"
Lokaci: Mar-21-2025
