Abstract
BEESHA: Biraha.
SHABAD: hal-abuurku waxa uu la xidhiidhaa goobta birta birta ah ee budada ah. Gaar ahaan waxay la xiriirtaa helitaanka daawaha adag ee sintered ee ku salaysan tungsten carbide. Waxa loo isticmaali karaa soo saarida gooyayaasha, laylisyada iyo jaridda wax-shiidka. Daawaha adag wuxuu ka kooban yahay 80.0-82.0 wt % tungsten carbide iyo 18.0-20.0 wt % ee xidhitaanka. Isku-xidhka ayaa ka kooban, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; kobalt 36.0-41.0.
SAAMAYN: helitaanka daawaha xoogga sare leh.
Sharaxaada
Hal-abuurku waxa uu la xidhiidhaa dhinaca biraha budada ah iyo wax-soo-saarka alwaaxyada adag ee sintered ee ku salaysan tungsten carbide, kaas oo loo isticmaali karo samaynta qalabka wax lagu gooyo, laylisyada, mishiinka iyo qalabyada kale.
Carbiide sinteed la yaqaan oo ku salaysan tungsten carbide, oo ka kooban 3.0 ilaa 20.0 wt.% Alloy binder ka kooban, wt.%: Cobalt 20.0-75.0; molybdenum - ilaa 5.0; niobium - ilaa 3.0 [1].
Hadafka la alifay waa in la kordhiyo xoogga daawaha.
Natiijooyinka farsamada waxaa lagu gaaraa in daawaha adag ee sintered oo ku salaysan tungsten carbide oo ka kooban 80.0-82.0 wt.% Tungsten carbide iyo 18.0-20.0 wt.% Binder, xiraha ka kooban yahay, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; kobalt 36.0-41.0.
Miiska dhexdiisa. 1 wuxuu muujinayaa halabuurka daawaha, iyo sidoo kale xoogga ugu dambeeya ee foorarsiga. Miiska dhexdiisa. 2 waxay muujinaysaa halabuurka seedaha.
Shaxda 1 Qaybaha Halabuurka, wt.%: hal 2 3 Wolfram carbide 80.0 81.0 82.0 farabadan 20,0 19.0 18.0 Xoog qalooca, MPa ~ 1950 ~ 1950 ~ 1950
Shaxda 2. Qaybaha Halabuurka, wt.%: mid 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
Budada qaybaha daawaynta ayaa lagu qasi jiray qiyaasta la tilmaamay, isku dar ah ayaa lagu cadaadiyaa cadaadiska 4.5-4.8 t / cm 2 oo lagu dhajiyay foornada korantada ee heerkulka 1300-1330 ° C faakuumka saacadaha 7-9. Inta lagu jiro sintering, xidhehu wuxuu milaan qayb ka mid ah carbide tungsten oo dhalaali. Natiijadu waa walxo cufan oo qaab-dhismeedkoodu ka kooban yahay qaybo carbide tungsten ah oo ku xiran binder.
Ilaha macluumaadka
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Waqtiga boostada: Juun-17-2022
