Abstract
UMHLABA: metallurgy.
UMXHOLO: ukuveliswa kunxulumene nomgubo wesinyithi. Ngokukodwa inxulumene nokufumana i-sintered hard alloy kwisiseko se-tungsten carbide. Ingasetyenziselwa ukwenza ii-cutters, iidrill kunye ne-milling cutter. I-Hard alloy iqulethe i-80.0-82.0 wt% tungsten carbide kunye ne-18.0-20.0 wt % yokubopha. Ukubophelela kuqulethe, wt%: molybdenum 48.0-50.0; niobium 1.0-2.0; irhenium 10.0-12.0; cobalt 36.0-41.0.
ISIPHUMO: ukufumana i-alloy ephezulu yamandla.
Inkcazo
Ukuveliswa kuhambelana nentsimi yomgubo wesinyithi kunye nokuveliswa kwee-alloys ezinzima ezifakwe kwi-tungsten carbide, ezinokuthi zisetyenziselwe ukuveliswa kwee-cutters, ii-drill, ii-mill kunye nezinye izixhobo.
I-carbide eyaziwayo e-sintered esekelwe kwi-tungsten carbide, equkethe i-3.0 ukuya kwi-20.0 wt.% I-binder alloy equlethe, wt.%: Cobalt 20.0-75.0; molybdenum - ukuya kuthi ga kwi-5.0; niobium – ukuya kuthi ga kwi-3.0 [1].
Injongo yoyilo kukwandisa amandla e-alloy.
Isiphumo sobugcisa siphunyezwa kwinto yokuba kwi-alloy enzima ye-sintered esekelwe kwi-tungsten carbide equkethe i-80.0-82.0 wt.% I-tungsten carbide kunye ne-18.0-20.0 wt.% Binder, i-binder iqulethe, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Etafileni. I-1 ibonisa ukubunjwa kwe-alloy, kunye namandla okugqibela ekugobeni. Etafileni. I-2 ibonisa ukubunjwa kwe-ligament.
Itheyibhile 1 Amacandelo Ukwakhiwa, wt.%: enye 2 3 Wolfram carbide 80.0 81.0 82.0 Bunch 20,0 19.0 18.0 Ukugoba Amandla, MPa ~ 1950 ~ 1950 ~ 1950 ~ 1950
Itheyibhile 2. Ukuqulunqwa kwamacandelo, wt.%: enye 2 3 Molybdenum 48.0 49.0 50,0 Niobium 1,0 1,5 2.0 Rhenium 10.0 11.0 12.0 Cobalt 41.0 38.5 36.0
Iipowders zamacandelo e-alloy zixutywe kwimilinganiselo ebonakalisiweyo, umxube ucinezelwe phantsi koxinzelelo lwe-4.5-4.8 t / cm 2 kunye ne-sintered kwisithando sombane kwiqondo lokushisa le-1300-1330 ° C kwi-vacuum ye-7-9 iiyure. Ngexesha lokucoca, i-binder ichitha inxalenye ye-tungsten carbide kwaye iyancibilika. Isiphumo sisixhobo esixineneyo esinesakhiwo esine-tungsten carbide particles exhunywe yi-binder.
Imithombo yolwazi
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Ixesha lokuposa: Jun-17-2022
