Kakaretso
LEBAMELA: metallurgy.
TLHOKOMELISO: Boqapi bo amana le sebaka sa phofo sa metallurgy. Haholo-holo e amana le ho amohela sintered hard alloy motheong oa tungsten carbide. E ka sebelisoa bakeng sa ho etsa li-cutters, li-drill le li-milling cutter. Alloy e thata e na le 80.0-82.0 wt % tungsten carbide le 18.0-20.0 wt % ea ho tlama. Tlamang e na le, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
EFFECT: Ho amohela motsoako o matla haholo.
Tlhaloso
Ho qaptjoa ho amana le tšimo ea metallurgy ea phofo le bakeng sa tlhahiso ea li-alloys tse thata tsa sintered tse thehiloeng ho tungsten carbide, e ka sebelisoang ho etsa li-cutters, li-drill, li-mill le lisebelisoa tse ling.
E tsebahalang sintered carbide e thehiloeng ho tungsten carbide, e nang le 3.0 ho 20.0 wt.% Alloy binder e nang le, wt.%: Cobalt 20.0-75.0; molybdenum - ho fihlela ho 5.0; niobium - ho fihlela ho 3.0 [1].
Sepheo sa ho qaptjoa ke ho eketsa matla a alloy.
Sephetho sa botekgeniki se finyelloa ka hore ka sintered hard alloy e thehiloeng ho tungsten carbide e nang le 80.0-82.0 wt.% Tungsten carbide le 18.0-20.0 wt.% Binder, binder e na le, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Tafoleng. 1 e bonts'a sebopeho sa alloy, hammoho le matla a ho qetela a ho kobeha. Tafoleng. 2 e bontša sebopeho sa ligament.
Lethathamo la 1 Likarolo Sebopeho, wt.%: e le 'ngoe 2 3 Wolfram carbide 80.0 81.0 82.0 Bunch 20,0 19.0 18.0 Matla a Kobehang, MPa ~ 1950 ~ 1950 ~ 1950
Letlapa la 2. Sebopeho sa Likarolo, wt.%: e le 'ngoe 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
Li-powders tsa likarolo tsa alloy li kopantsoe ka tekanyo e bontšitsoeng, motsoako o hatelloa tlas'a khatello ea 4.5-4.8 t / cm 2 'me o kenngoa ka sebōping sa motlakase ka mocheso oa 1300-1330 ° C ka vacuum bakeng sa lihora tse 7-9. Nakong ea sintering, binder e qhaqha karolo ea tungsten carbide ebe e qhibiliha. Sephetho ke thepa e teteaneng eo sebopeho sa eona se nang le likaroloana tsa tungsten carbide tse kopantsoeng ke sekontiri.
Mehloli ea tlhahisoleseling
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Nako ea poso: Jun-17-2022
