Putanga
WHARE: metallurgy.
KAUPAPA: e pa ana te tenenga ki te mara whakarewa paura.Otirā e pā ana ki te whiwhi o te koranu mārō sintered i runga i te tungsten carbide.Ka taea te whakamahi mo te hanga o nga kaitapahi, nga kaitarai me te kaitapahi mira.Ko te koranu pakeke he 80.0-82.0 wt % tungsten carbide me te 18.0-20.0 wt % o te here.He here kei roto, wt %: molybdenum 48.0-50.0;niobium 1.0-2.0;rhenium 10.0-12.0;cobalt 36.0-41.0.
WHAKAMAHI: te whiwhi i te koranu kaha teitei.
Whakaahuatanga
Ko te hangahanga e pa ana ki te waahi o te whakarewanga paura me te hanga o nga koranu uaua kua oti te hanga i runga i te tungsten carbide, ka taea te whakamahi mo te hanga o nga kaitapahi, nga miihini, nga mira me etahi atu taputapu.
Ko te carbide sintered e mohiotia ana i runga i te carbide tungsten, kei roto 3.0 ki te 20.0 wt.% He koranu here kei roto, wt.%: Cobalt 20.0-75.0;molybdenum - tae atu ki te 5.0;niobium – tae atu ki te 3.0 [1].
Ko te kaupapa o te hangahanga ko te whakanui ake i te kaha o te koranu.
Ko te hua hangarau ka tutuki i roto i te mea i roto i te koranu uaua kua oti te hangai i runga i te tungsten carbide kei roto te 80.0-82.0 wt.% Tungsten carbide me te 18.0-20.0 wt.% Binder, kei roto i te binder, wt.%: Molybdenum 48 0-50.0;niobium 1.0-2.0, rhenium 10.0-12.0;cobalt 36.0-41.0.
I te tepu.Ko te 1 e whakaatu ana i te hanganga o te koranu, me te tino kaha ki te piko.I te tepu.Ko te 2 e whakaatu ana i te hanganga o te taura.
Ripanga 1 Waahanga Waihanga, Wt.%: kotahi 2 3 Wolfram carbide 80.0 81.0 82.0 Paihere 20,0 19.0 18.0 Te Kaha Piko, MPa ~ 1950 ~ 1950 ~ 1950
Ripanga 2. Nga Waahanga Hanga, wt.%: kotahi 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
Ko nga paura o nga waahanga konumohe kua whakauruhia ki roto i nga waahanga kua tohua, ka pehia te ranunga i raro i te pehanga o te 4.5-4.8 t / cm 2 ka tukuna ki roto i te oumu hiko i te mahana o te 1300-1330 ° C i roto i te waatea mo te 7-9 haora.I te wa o te sintering, ka whakakorehia e te kaihere tetahi waahanga o te carbide tungsten ka rewa.Ko te hua he mea matoka tona hanganga he matūriki tungsten carbide e honoa ana e te here.
Nga puna korero
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Wā tuku: Hune-17-2022
