Whakarāpopototanga
MĀRA: mahi whakarewa.
MATUA: e pā ana te mea hou ki te mara o te whakarewa paura. Ina koa e pā ana ki te whiwhinga o te koranu mārō kua whakatōkia i runga i te pūtake o te tungsten carbide. Ka taea te whakamahi mō te hanga i ngā taputapu tapahi, ngā wiri me ngā taputapu mira. Kei roto i te koranu mārō te 80.0-82.0 wt % o te tungsten carbide me te 18.0-20.0 wt % o te here. Kei roto i te here, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
PĀNGA: te whiwhinga o te koranu kaha-teitei.
Whakaahuatanga
E pā ana tēnei mea hou ki te mara o te whakarewa paura, me te hanga i ngā koranu mārō kua whakatōkia i runga i te tungsten carbide, ka taea te whakamahi mō te hanga i ngā taputapu tapahi, ngā wiri, ngā mira me ētahi atu taputapu.
He kāpirati kua whakatōkia e mōhiotia ana i ahu mai i te kāpirati tungsten, kei roto ko te 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 whāinga o tēnei mahi hou he whakanui ake i te kaha o te koranu.
Ko te hua hangarau ka tutuki i roto i te mea i roto i te koranu mārō kua whakatōkia i runga i te kāpira tungsten kei roto ko te 80.0-82.0 wt.% kāpira tungsten me te 18.0-20.0 wt.% Kaihono, kei roto i te hononga, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Kei roto i te ripanga. E whakaatu ana te 1 i te hanganga o te koranu, me te kaha mutunga kore o te piko. Kei roto i te ripanga. E whakaatu ana te 2 i te hanganga o te hononga.
Ripanga 1 Ngā Wāhanga Te Hanganga, te taumaha%: kotahi 2 3 Wolfram carbide 80.0 81.0 82.0 Paihere 20,0 19.0 18.0 Kaha Piko, MPa ~ 1950 ~ 1950 ~ 1950
Ripanga 2. Ngā Wāhanga Hanganga, taumaha %: 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
Ka whakaranua ngā paura o ngā wāhanga koranu ki ngā ōwehenga kua tohua, ka pēhia te ranunga i raro i te pēhanga o te 4.5-4.8 t/cm 2 ka whakakāhia ki roto i te oumu hiko i te pāmahana o te 1300-1330 ° C i roto i te korehau mō ngā hāora 7-9. I te wā e whakakāhia ana, ka whakarewahia e te mea here tetahi wāhanga o te kāpira tungsten ka rewa. Ko te hua he rauemi matotoru ko tōna hanganga he matūriki kāpira tungsten e honoa ana e te mea here.
Ngā puna mōhiohio
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Wā tuku: Pipiri-17-2022
