Kakaretso
TŠIMO: tšepe.
LINTHO: boqapi bo amana le tšimo ea tšepe ea phofo. Haholo-holo bo amana le ho amoheloa ha motsoako o thata o sintered motheong oa carbide ea tungsten. E ka sebelisoa bakeng sa tlhahiso ea li-cutter, li-drill le silling cutter. Motsoako o thata o na le 80.0-82.0 wt % tungsten carbide le 18.0-20.0 wt % ea ho tlama. Ho tlama ho na le, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
PHELELO: ho amohela motsoako o matla haholo.
Tlhaloso
Tlhahiso ena e amana le lefapha la metallurgy ea phofo le bakeng sa tlhahiso ea li-alloy tse thata tse sintered tse thehiloeng holim'a tungsten carbide, tse ka sebelisoang bakeng sa tlhahiso ea li-cutter, li-drill, li-mill le lisebelisoa tse ling.
Carbide e tsebahalang e sintered e thehiloeng ho carbide ea tungsten, e nang le 3.0 ho isa ho 20.0 wt.% Motsoako oa binder o nang le, wt.%: Cobalt 20.0-75.0; molybdenum - ho fihlela ho 5.0; niobium - ho fihlela ho 3.0 [1].
Sepheo sa popo ena ke ho eketsa matla a motsoako.
Sephetho sa botekgeniki se fihlellwa ka hore motswakong o thata o sintered o thehilweng hodima carbide ya tungsten e nang le carbide ya Tungsten ya 80.0-82.0 wt.% le Binder ya 18.0-20.0 wt.%, 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 motsoako, hammoho le matla a ho qetela a ho kobeha. Tafoleng. 2 e bonts'a sebopeho sa ligament.
Tafole 1 Dikarolo Sebopeho, boima%: e le nngwe 2 3 Wolfram carbide 80.0 81.0 82.0 Sehlopha 20.0 19.0 18.0 Matla a Kobehang, MPa ~ 1950 ~ 1950 ~ 1950
Tafole ea 2. Sebopeho sa Likarolo, boima ba%: 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
Phofo ea likarolo tsa motsoako e tsoakoa ka tekanyo e bontšitsoeng, motsoako o hatelloa tlas'a khatello ea 4.5-4.8 t / cm 2 'me o siloa ka sebōping sa motlakase mochesong oa 1300-1330 ° C ka vacuum cleaner ka lihora tse 7-9. Nakong ea ho siloa, binder e qhala karolo ea tungsten carbide ebe ea qhibiliha. Sephetho ke thepa e teteaneng eo sebopeho sa eona se entsoeng ka likaroloana tsa tungsten carbide tse hokahantsoeng ke binder.
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: Phuptjane-17-2022
