I-carbide enosimende kanye nensimbi enesivinini esiphezulu ziyimikhiqizo ejwayelekile ezansi nomfula ye-refractory metal tungsten (W), zombili zinezakhiwo ezinhle ze-thermodynamic, futhi zingasetshenziswa ukwenza amathuluzi okusika, isikhunta esisebenza ngokubanda kanye nezibungu ezisebenza ngokushisayo, njll. Nokho, ngenxa ukwakheka kwempahla ehlukene kokubili, futhi kuyahluka ngokuya ngezakhiwo zemishini kanye nokusetshenziswa.
1. Umqondo
I-Cemented carbide iyingxubevange eyenziwe nge-refractory metal carbide efana ne-tungsten carbide (WC) powder kanye nensimbi yokubopha njenge-cobalt powder. Igama lesiNgisi yi-Tungsten Carbide/Cemented Carbide. I-high-temperature carbide content yayo iphakeme kunaleyo yobude bensimbi yesivinini esikhulu.
High-speed steel iyinsimbi ene-carbon high-alloy steel eyakhiwe ngenani elikhulu le-tungsten, i-molybdenum, i-chromium, i-cobalt, i-vanadium nezinye izakhi, ikakhulukazi ezakhiwe ngensimbi yensimbi (njenge-tungsten carbide, i-molybdenum carbide noma i-vanadium carbide) kanye i-matrix yensimbi, enekhabhoni engu-0.7 % -1.65%, inani eliphelele le izakhi ze-alloying ngu-10% -25%, kanti igama lesiNgisi elithi High Speed Steels (HSS).
2. Ukusebenza
Zombili zinezici zokuqina okuphezulu, amandla aphezulu, ukuqina okuhle, ubulukhuni obomvu, ukumelana nokugqoka, ukumelana nokushisa nokusebenza kwenqubo, futhi lezi zici zizohluka ngenxa yamabanga ahlukene. Ngokuvamile, ubulukhuni, ubulukhuni obubomvu, ukumelana nokugqoka kanye nokumelana nokushisa kwe-carbide enosimende kungcono kunezensimbi zejubane eliphezulu.
3. Ubuchwepheshe bokukhiqiza
Inqubo yokukhiqiza ye-carbide enosimende ikakhulukazi ihlanganisa inqubo ye-powder metallurgy, ubuchwepheshe bokubumba umjovo noma inqubo yokuphrinta ye-3D.
Izindlela zokukhiqiza zensimbi enesivinini esikhulu zihlanganisa ubuchwepheshe bokuphonsa bendabuko, ubuchwepheshe bokubuyisela kabusha i-electroslag, ubuchwepheshe be-powder metallurgy kanye nobuchwepheshe bokubumba umjovo.
4. Sebenzisa
Nakuba bobabili bangenza imimese, isikhunta somsebenzi oshisayo kanye nesikhunta somsebenzi obandayo, ukusebenza kwabo kuhlukile. Ijubane lokusika lamathuluzi e-carbide ajwayelekile liphindwe izikhathi ezingama-4-7 kunelamathuluzi ensimbi anesivinini esikhulu, futhi impilo yesevisi iphindwe izikhathi ezingama-5-80. Ngokuya ngesikhunta, impilo yesevisi ye-carbide enosimende iyafa iphindwe izikhathi ezingu-20 kuya kwezingu-150 kunaleyo yensimbi enesivinini esiphezulu. Isibonelo, impilo yesevisi ye-hot heading extrusion iyafa eyenziwe ngensimbi engu-3Cr2W8V izikhathi ezingu-5,000. Ukusetshenziswa kwe-hot heading extrusion dies eyenziwe nge-YG20 cemented carbide Impilo yesevisi yizikhathi eziyi-150,000.
Isikhathi sokuthumela: Feb-10-2023