Njengommeleli ojwayelekile we-carbide enosimende evame ukusetshenziswa, i-tungsten cobalt cemented carbide (uhlobo lwe-YG lwe-cemented carbide) isho ingxubevange eyakhiwe nge-tungsten carbide njengesigaba esiqinile ne-cobalt njengesigaba sikasimende, igama lesiNgisi yi-tungsten cobalt cemented carbide, futhi igama lomkhiqizo lakhiwe i-YG kanye nephesenti lokuqukethwe kwe-cobalt okumaphakathi.Igama lomkhiqizo liqukethe okuthi "YG" kanye nephesenti lokuqukethwe kwe-cobalt okumaphakathi, okufana ne-YG6, YG8 njalonjalo.
Mayelana nokusebenza, i-YG cemented carbide ihlanganisa izinzuzo ze-tungsten carbide ne-cobalt, ezibonakala ngokuyinhloko ebukhuni obuphezulu, ukuhanjiswa okuhle kwe-thermal, ukuqina komthelela omuhle, amandla aphezulu aguquguqukayo kanye nokumelana okuhle kakhulu kokusika.Kodwa-ke, kufanele kuqashelwe ukuthi izinkomba zomzimba zamabanga ahlukene we-YG cemented carbide zihlukile, njengokuminyana kwe-YG6 kungu-14.6~15.0g/cm3, ubulukhuni 89.5HRA, amandla okuguquguquka okungu-1400MPa, ukuqina komthelela 2.6J/cm2, ukuphoqa 9.6~12.8KA/m, amandla okucindezela 4600MPa;ukuminyana kwe-YG8 ngu-14.5~14.9g/cm3;ukuminyana kwe-YG8 ngu-14.5~14.9g/cm3;futhi ukuminyana kwe-YG8 kungu-14.5~14.9g/cm3.I-YG8 inokuminyana okungu-14.5~14.9g/cm3, ubulukhuni obungu-89HRA, amandla aguquguqukayo angu-1500MPa, ukuqina komthelela okungu-2.5J/cm2, ukuphoqelelwa okungu-11.2~12.8KA/m, namandla acindezelayo angu-4600MPa.Ngokuvamile, ngokwanda kokuqukethwe kwe-cobalt esimweni esithile, amandla e-alloy aguquguqukayo kanye nokucindezela kanye nokuqina kungcono, kuyilapho ukuminyana nobulukhuni buphansi.
Ukumelana nokugqokwa kanye nokuqina kohlobo lwe-YG carbide enosimende imvamisa imizimba emibili ephikisanayo, ebonakaliswa ikakhulukazi kulokhu okulandelayo: ngaphansi kwezimo ezithile, ngokwanda kokuqukethwe kwe-cobalt noma ukwehla kokuqukethwe kwe-tungsten, ukuqina kwe-alloy kungcono futhi ukumelana nokugqoka kumpofu;ngokuphambene nalokho, ngokwanda kokuqukethwe kwe-tungsten noma ukwehla kokuqukethwe kwe-cobalt, impahla e-abrasive ye-alloy ingcono futhi ukuqina kumpofu.Ukuze kuxazululwe inkinga yokumelana nokugqoka okungqubuzanayo kanye nokuqina kwe-YG-type cemented carbide, umcwaningi we-Patent No. CN1234894C unikeza indlela entsha yokukhiqiza, izinzuzo zalobu buchwepheshe bokukhiqiza yilezi: 1) Ngenxa yesakhiwo esingajwayelekile Izinhlamvu ze-WC, inhlangano ye-carbide enosimende iyathuthukiswa (i-WC eseduze kokusanhlamvu iyancipha, ukusatshalaliswa kwesigaba se-Co kufana kakhulu, i-porosity iyancipha, futhi imithombo yokuqhekeka iyancipha kakhulu), ngakho-ke ukumelana nokugqoka kanye nokuqina kwale alloy kungcono kunalokho ama-alloys afanayo we-cobalt-grained;2) Ukusetshenziswa kwezimpushana ezinhle ze-cobalt kungcono kunokusetshenziswa kwezimpushana ezivamile ze-cobalt (2-3μm), futhi ukuqina kwale alloy kuthuthukiswa ngo-5 kuya ku-10%, kuyilapho ukungezwa kwe-(0.3-0.6wt%) i-TaC ikhuphuka ubulukhuni bayo (HRA) ngo-0.2 kuya ku-0.3, okungukuthi ukumelana kwayo nokugqoka kuyathuthukiswa.~10%, futhi ngemva kokwengeza (0.3-0.6wt%) i-TaC, ubulukhuni bayo (HRA) bukhuphuka ngo-0.2-0.3, okungukuthi ukumelana kwayo nokugqoka kuyathuthukiswa.
Ngokombono wezinhlobo, ngokusho kokuqukethwe okuhlukile kwe-cobalt, i-tungsten-cobalt cemented carbide ingahlukaniswa ngama-alloys aphansi-cobalt, aphakathi-cobalt kanye ne-high-cobalt;ngokusho kwezinhlamvu ezahlukene ze-tungsten carbide, ingahlukaniswa ngama-micro-grain, ama-fine-grain, ama-medium-grain kanye nama-coarse-grain alloys;ngokusho kokusetshenziswa okuhlukene, ingahlukaniswa ngamathuluzi okusika, amathuluzi okumba kanye namathuluzi angagugi.
Ngokombono wenqubo yokukhiqiza, izinyathelo zokulungiselela ze-YG cemented carbide zihlanganisa i-tungsten carbide powder kanye ne-cobalt powder ngokusebenzisa i-batching, ukugaya okumanzi, ukomisa, i-granulation, ukucindezela nokwenza, i-ejenti yokususa, i-sintering njalonjalo.Qaphela: Izinhlobo ezimbili zezinhlayiya ezimahhadla nezicolekileyo ze-WC powder zisetshenziselwa ukuhlanganisa, lapho usayizi wezinhlayiyana ezimahhadla ze-WC powder ingu (20-30) μm, nosayizi wezinhlayiyana ze-WC powder engu-(1.2-1.8) μm.
Ngokombono wesicelo, i-tungsten ne-cobalt cemented carbide ingasetshenziswa ukusika insimbi ensimbi, izinsimbi ezingenayo insimbi nezinto ezingezona ezensimbi, ngaphezu kokukhiqizwa kwamathuluzi onqenqemeni, isikhunta sokudweba, isikhunta esibandayo sokubhoboza, imibhobho, imiqulu, izando eziphezulu namanye amathuluzi angagugi namathuluzi okumba.
Isikhathi sokuthumela: Jul-21-2023