Pōkole
KĀHUNA: hana hao.
MEA: pili ka mea i hana ʻia i ke kahua metallurgy pauka. Pili loa ia i ka loaʻa ʻana o ka sintered hard alloy ma ke kumu o ka tungsten carbide. Hiki ke hoʻohana ʻia no ka hana ʻana i nā mea ʻoki, nā wili a me ka mea ʻoki wili. Loaʻa i ka mea paʻakikī he 80.0-82.0 wt % tungsten carbide a me 18.0-20.0 wt % o ka nakinaki ʻana. Loaʻa i ka nakinaki, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
HOPENA: ka loaʻa ʻana o ka metala ikaika kiʻekiʻe.
Wehewehena
Pili ka mea i hana ʻia i ke kahua o ka metallurgy pauka a no ka hana ʻana i nā mea hao paʻakikī sintered e pili ana i ka tungsten carbide, hiki ke hoʻohana ʻia no ka hana ʻana i nā mea ʻokiʻoki, nā wili, nā wili a me nā mea hana ʻē aʻe.
ʻIke ʻia ka carbide sintered e pili ana i ka tungsten carbide, aia ma loko o 3.0 a 20.0 wt.% He mea hoʻopaʻa metala e loaʻa ana, 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, ʻo ia ka hoʻonui ʻana i ka ikaika o ka metala.
Ua hoʻokō ʻia ka hopena loea ma loko o kahi metala paʻakikī sintered e pili ana i ka tungsten carbide e loaʻa ana he 80.0-82.0 wt.% Tungsten carbide a me 18.0-20.0 wt.% Binder, aia i loko o ka mea hoʻopaʻa, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Ma ka papa. Hōʻike ʻo 1 i ke ʻano o ka metala, a me ka ikaika hope loa i ke kūlou ʻana. Ma ka papa. Hōʻike ʻo 2 i ke ʻano o ka ligament.
Papa 1 Nā ʻĀpana Hoʻohuihui, wt.%: hoʻokahi 2 3 Wolfram carbide 80.0 81.0 82.0 Puʻu 20,0 19.0 18.0 Ikaika Kulou, MPa ~ 1950 ~ 1950 ~ 1950
Papa 2. Nā ʻĀpana Hoʻohuihui, wt.%: hoʻokahi 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
Hoʻohuihui ʻia nā pauka o nā ʻāpana alloy i nā ʻāpana i hōʻike ʻia, ua kaomi ʻia ka hui ʻana ma lalo o ke kaomi o 4.5-4.8 t / cm 2 a ua sintered ʻia i loko o ka umu uila ma ka mahana o 1300-1330 ° C i loko o ka vacuum no 7-9 mau hola. I ka wā o ka sintering, hoʻoheheʻe ka mea hoʻopaʻa i kahi ʻāpana o ka tungsten carbide a hoʻoheheʻe ʻia. ʻO ka hopena he mea mānoanoa nona ke ʻano i hana ʻia me nā ʻāpana tungsten carbide i hoʻopili ʻia e kahi mea hoʻopaʻa.
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
