Kayan aikin yankan PCD suna da tauri mai ƙarfi, ƙarfin matsawa mai ƙarfi, kyakkyawan yanayin zafi da juriya, kuma suna iya samun daidaiton machining da inganci a cikin injina mai sauri.
Abubuwan da ke sama suna ƙaddara ta yanayin lu'u-lu'u na crystal.A cikin lu'u-lu'u lu'u-lu'u, electrons valence guda hudu na carbon atoms suna samar da shaidu bisa ga tsarin tetrahedral, kuma kowane carbon atom yana samar da haɗin gwiwa tare da kwayoyin halitta guda hudu, don haka suna samar da tsarin lu'u-lu'u.Wannan tsarin yana da ƙarfi dauri mai ƙarfi da jagora, don haka yana sa lu'u-lu'u ya yi wuya sosai.Domin tsarin lu'u-lu'u na polycrystalline (PCD) wani nau'in lu'u-lu'u ne wanda aka yi da shi na lu'u-lu'u mai kyau tare da mabambanta daban-daban, taurinsa da juriyarsa har yanzu sun yi ƙasa da na lu'u-lu'u na lu'u-lu'u ɗaya duk da ƙarin abin ɗaure.Duk da haka, PCD sintered jiki ne isotropic, don haka ba shi da sauki a fashe tare da guda cleavage jirgin sama.
2. Bambance-bambance a cikin alamun aiki
Taurin PCD zai iya kaiwa 8000HV, 80 ~ 120 sau na na cemented carbide;A takaice dai, PCD yana da tsawon rayuwar sabis kuma yana haɓaka haɓakar samarwa.
Thermal watsin PCD ne 700W / mK, 1.5 ~ 9 sau na cemented carbide, kuma ko da mafi girma fiye da na PCBN da jan karfe, don haka zafi canja wurin PCD kayayyakin aiki ne da sauri;
Matsakaicin ƙididdigewa na PCD gabaɗaya 0.1 ~ 0.3 ne kawai (ƙirar ƙima na simintin carbide shine 0.4 ~ 1), don haka kayan aikin PCD na iya rage ƙarfin yankewa;
Matsakaicin haɓakar haɓakar thermal na PCD shine kawai 0.9 × 10 ^ -6～1.18 × 10 ^ - 6, wanda shine kawai 1/5 na carbide cemented, don haka nakasar thermal na kayan aikin PCD ƙananan ne kuma daidaiton injin yana da girma;
Dangantakar da ke tsakanin kayan aikin PCD da ƙarfe mara ƙarfe da kayan da ba na ƙarfe ba ƙanƙanta ne, kuma kwakwalwan kwamfuta ba su da sauƙi a haɗa kan tip ɗin kayan aiki don samar da ajiyar guntu yayin sarrafawa.
Lokacin aikawa: Fabrairu-23-2023