ʻĀpana
KĀHELE: metallurgy.
SUBSTANCE: pili ka mea i hana ʻia i ke kahua metala lepo. ʻOi aku ia e pili ana i ka loaʻa ʻana o ka alloy hard sintered ma ke kumu o ka tungsten carbide. Hiki ke hoʻohana ʻia no ka hana ʻana i nā mea ʻoki, drills a me ka mea ʻoki wili. Loaʻa ka paʻa paʻa i ka 80.0-82.0 wt% tungsten carbide a me 18.0-20.0 wt% o ka paʻa. ʻO ka hoʻopaʻa ʻana i loko, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; kobalt 36.0-41.0.
KA HOʻOPIʻI: ka loaʻa ʻana o ka huila ikaika kiʻekiʻe.
wehewehe
ʻO ka mea i hanaʻia e pili ana i ke kahua o ka pauka metallurgy a no ka hanaʻana i nā mea paʻa paʻa paʻa i hoʻokumuʻia ma luna o ka tungsten carbide, hiki ke hoʻohanaʻia no ka hanaʻana i nā meaʻokiʻoki, nā wili, nā wili a me nā mea hana'ē aʻe.
ʻIke ʻia ka sintered carbide e pili ana i ka tungsten carbide, loaʻa ka 3.0 a 20.0 wt.% ʻO kahi hui hoʻopaʻa i loaʻa, wt.%: Cobalt 20.0-75.0; molybdenum - a hiki i ka 5.0; niobium - a hiki i ka 3.0 [1].
ʻO ka pahuhopu o ka mea i hana ʻia e hoʻonui i ka ikaika o ka alloy.
Loaʻa ka hopena ʻenehana i loko o kahi hui paʻa paʻa i hoʻopaʻa ʻia e pili ana i ka tungsten carbide i loaʻa ka 80.0-82.0 wt.% Tungsten carbide a me 18.0-20.0 wt.% Binder, aia ka mea hoʻopili, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; kobalt 36.0-41.0.
I ka papaʻaina. Hōʻike ka 1 i ke ʻano o ka huila, a me ka ikaika hope loa i ke kulou ʻana. I ka papaʻaina. Hōʻike ka 2 i ke ʻano o ka ligament.
Papa 1 Nā ʻāpana Hoʻohui, wt.%: hoʻokahi 2 3 Wolfram carbide 80.0 81.0 82.0 Hui 20,0 19.0 18.0 Piʻo ikaika, MPa ~ 1950 ~ 1950 ~ 1950
Papa 2. Huina Hui, wt.%: hookahi 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
Hoʻopili ʻia nā pauka o nā ʻāpana alloy i nā ʻāpana i hōʻike ʻia, kaomi ʻia ka hui ʻana ma lalo o ke kaomi o 4.5-4.8 t / cm 2 a hoʻopaʻa ʻia i loko o kahi umu uila ma kahi mahana o 1300-1330 ° C i ka vacuum no 7-9 mau hola. I ka wā o ka sintering, hoʻoheheʻe ka mea hoʻopili i kahi ʻāpana o ka tungsten carbide a hoʻoheheʻe. ʻO ka hopena he mea paʻa kona ʻano i loko o nā ʻāpana tungsten carbide i hoʻopili ʻia e kahi mea paʻa.
Nā kumu ʻike
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Ka manawa hoʻouna: Iune-17-2022
