PDC Bit Cutter Manufacturing

2022-11-07 Share

PDC Bit Cutter Manufacturing

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PDC bits abun yanka ana kiransa Polycrystalline Diamond Compact Cutter.Wannan kayan da aka haɗa shine 90-95% lu'u-lu'u mai tsafta kuma an ƙera shi a cikin ƙananan abubuwa waɗanda aka saita a cikin jikin bit. Babban yanayin zafi da aka haifar tare da irin waɗannan nau'ikan rago ya haifar da lu'u-lu'u na polycrystalline ya watse kuma hakan ya haifar da haɓakar Thermally Stable Polycrystalline Diamond - TSP Diamond.


PCD (Polycrystalline Diamond) an kafa shi a cikin yanayin zafi mai girma-mataki biyu, babban matsi. Mataki na farko a cikin tsari shine kera lu'ulu'u na lu'u-lu'u ta hanyar fallasa graphite, a gaban Cobalt, nickel, da baƙin ƙarfe ko manganese mai kara kuzari/mafi, zuwa matsa lamba sama da 600,000 psi. A wannan yanayin lu'ulu'u lu'u-lu'u suna fitowa da sauri. Koyaya, yayin aiwatar da jujjuya graphite zuwa lu'u-lu'u, akwai raguwar ƙara, wanda ke haifar da haɓakawa / ƙarfi don gudana tsakanin lu'ulu'u masu ƙirƙirar, yana hana haɗin gwiwar intercrystalline kuma saboda haka kawai lu'u-lu'u lu'u-lu'u lu'u-lu'u ana samarwa daga wannan ɓangaren tsari.


A mataki na biyu na tsari, PCD blank ko 'cutter' an samar da shi ta hanyar aikin sarrafa lokaci na ruwa. Lu'u lu'u lu'u-lu'u da aka kafa a mataki na farko na tsari yana hade sosai tare da mai kara kuzari / mai ɗaure kuma an fallasa shi zuwa yanayin zafi sama da 1400 ℃ da matsin lamba na 750,000 psi. Babban hanyar da ake amfani da ita shine narkar da lu'ulu'u na lu'u-lu'u a gefuna, sasanninta, da wuraren babban matsin lamba wanda ya haifar da maki ko lambobi. Wannan yana biye da haɓakar epitaxial na lu'u-lu'u akan fuskoki da kuma a wuraren ƙananan kusurwar lamba tsakanin lu'ulu'u. Wannan tsarin sake girma yana samar da haɗin lu'u-lu'u na gaskiya na lu'u-lu'u ban da mai ɗaure ruwa daga yankin haɗin gwiwa. Mai ɗaure yana samar da ƙarin ko žasa ci gaba da hanyar sadarwa na pores, tare da ci gaba da hanyar sadarwa na lu'u-lu'u. Matsakaicin adadin lu'u-lu'u a cikin PCD shine 90-97 vol.%.


Idan mutum yana buƙatar haɗaɗɗen haɗaɗɗen abin da PCD ke haɗe da sinadarai zuwa ƙwayar tungsten carbide, za a iya samun wasu ko duk abin da ake ɗaure don PCD daga madaidaicin tungsten carbide da ke kusa ta hanyar narkewa da fitar da mai ɗaure cobalt daga tungsten carbide.


Idan kuna sha'awar masu yankan PDC kuma kuna son ƙarin bayani da cikakkun bayanai, zaku iya tuntuɓar mu ta waya ko wasiƙa a hagu, ko Aika wasiƙun Amurka a kasan shafin.

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