Pfupiso
MUNDA: kugadzira simbi.
CHINHU: Kugadzira zvinhu zvine chekuita nesimbi yeupfu. Zvikuru sei, zvine chekuita nekugamuchira sintered hard alloy zvichibva pa tungsten carbide. Inogona kushandiswa kugadzira zvidimbu zvekucheka, ma drill uye milling cutter. Hard alloy ine 80.0-82.0 wt % tungsten carbide uye 18.0-20.0 wt % yekubatanidza. Kubatanidza kune, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
MHEDZISO: kugamuchira chiwanikwa chine simba guru.
Tsananguro
Kugadzirwa uku kune chekuita nemunda wekugadzira simbi dzine hupfu uye kugadzirwa kwesimbi dzakaoma dzakagadzirwa netungsten carbide, dzinogona kushandiswa kugadzira zvidimbu zvekucheka, mabhora, zvigayo nezvimwe zvishandiso.
Carbide inozivikanwa ine sintered yakavakirwa pa tungsten carbide, ine 3.0 kusvika 20.0 wt.% Alloy ye binder ine, wt.%: Cobalt 20.0-75.0; molybdenum - kusvika 5.0; niobium - kusvika 3.0 [1].
Chinangwa chekugadzirwa uku ndechekuwedzera simba resimbi.
Mhedzisiro yehunyanzvi inowanikwa pakuti musimbi yakaoma yakavakirwa pa tungsten carbide ine 80.0-82.0 wt.% Tungsten carbide uye 18.0-20.0 wt.% Binder, binder ine, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Mutafura. 1 inoratidza kuumbwa kwesimbi, pamwe nesimba guru pakukombama. Mutafura. 2 inoratidza kuumbwa kwetsinga.
Tafura 1 Kuumbwa kweZvikamu, huremu%: imwe 2 3 Wolfram carbide 80.0 81.0 82.0 Bunch 20.0 19.0 18.0 Simba rekukotama, MPa ~ 1950 ~ 1950 ~ 1950
Tafura 2. Kuumbwa kwezvikamu, huremu%: imwe 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
Upfu hwezvinhu zve alloy hunosanganiswa muhuwandu hwakaratidzwa, musanganiswa wacho unodzvanywa pasi pekumanikidzwa kwe 4.5-4.8 t / cm2 uye unopisirwa muchoto chemagetsi patembiricha ye 1300-1330 ° C mu vacuum kwemaawa 7-9. Munguva yekupisa, binder inonyungudutsa chikamu che tungsten carbide yonyunguduka. Mugumisiro wacho inyaya yakakora ine chimiro che tungsten carbide particles yakabatana ne binder.
Masosi eruzivo
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Nguva yekutumira: Chikumi-17-2022
