Whakaahuatanga
Niobium Carbide NbC,paura parauri marama, me te momo konutai pūhaumāota pūnaha tioata pūtoru, ira whakarewa 3490°C, ira kohua 4300°C, kiato 7.56g/cm3, karekau e rewa i roto i te wai me te waikawa pararopi, engari ka whakarewahia i roto i te waikawa whakauru o te waikawa hauwaiwai me te waikawa nitric ka taea te pirau.Kaore e taea te whakamahi noa i te Niobium Carbide hei taapiri hei aukati i te tipu o nga kakano koranu ki te pai i te carbide cimented carbide witi i roto i te hanga o te carbide cimented, engari ka hanga ano i te tuatoru o nga wahanga marara me etahi atu carbide engari ko WC me Co, ka taea te whakapai ake. te pakeke o te waiariki, te parenga waiariki, te pehi wera me te aukati waiariki o te carbide cimented.Na nga painga o te whakapai ake i te pakeke me te pakaru o te koranu, ka taea te whakamahi ki te whakarite i nga taputapu taputapu carbide cimented me te mahi tapahi pai.I tua atu, ko te teitei ake o te rewa, te pakeke me te pumau matū, ka whakamahia ano te NbC hei papanga whakaahuru teitei o te pāmahana me te papanga paninga rehu i roto i te umanga aerospace.
Tukunga
Ko te Niobium Carbide NbC me te Tantalum Carbide TaC i Western Minmetals (SC) Corporation ka taea te tuku i te rahi o te paura 0.5-500 micron ranei 5-400 mesh ranei rite ki te whakaritenga, kete o te 25kg, 50kg i roto i te peeke kirihou me te pahu rino i waho.
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Whakatakotoranga Hangarau
Kao. | Tūemi | Whakatakotoranga Paerewa | |||||||
1 | Hua | Cr3C2 | NbC | TaC | TiC | VC | ZrC | HfC | |
2 | Ihirangi % | Tapeke C ≥ | 12.8 | 11.1 | 6.2 | 19.1 | 17.7 | 11.2 | 6.15 |
Koreutu C ≤ | 0.3 | 0.15 | 0.1 | 0.3 | 0.5 | 0.5 | 0.3 | ||
3 | Te matū poke PCT Max ia | O | 0.7 | 0.3 | 0.15 | 0.5 | 0.5 | 0.5 | 0.5 |
N | 0.1 | 0.02 | 0.02 | 0.02 | 0.1 | 0.05 | 0.05 | ||
Fe | 0.08 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | ||
Si | 0.04 | 0.01 | 0.01 | 0.02 | 0.01 | 0.005 | 0.005 | ||
Ca | - | 0.005 | 0.01 | 0.01 | 0.01 | 0.05 | 0.05 | ||
K | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | ||
Na | 0.005 | 0.005 | 0.005 | 0.01 | 0.01 | 0.005 | 0.005 | ||
Nb | 0.01 | - | 0.01 | 0.01 | 0.01 | 0.005 | 0.005 | ||
Al | - | 0.005 | 0.01 | - | - | - | - | ||
S | 0.03 | - | - | - | - | - | - | ||
4 | Rahi | 0.5-500micron ranei 5-400mesh ranei rite whakaritea | |||||||
5 | Tarapi | 2kgs i roto i te putea hiato me te pahu rino i waho, 25kgs kupenga |
Tantalum Carbide TaC, te paura tae parauri, te hanganga kiriata o te momo konutai pūhaumāota, te taumaha rāpoi 192.96, te kiato 14.3g/cm3, ira whakarewa 3880°C, ira koropuke 5500°C, karekau e rewa i roto i te wai me te waikawa pararopi, ka taea te memeha i roto i te ranunga o te waikawa waiwaro me te waikawa nitric me te pirau.He mahi nui a Tantalum Carbide ki te aukati i te tipu o te witi me te whakapai ake i te pakeke whero me te whakakakahu i te aukati o te koranu, te whakarei ake i te aukati waikura me te aukati waikura o te koranu me te whakapai ake i te hanganga o te koranu.He nui te pumau o te matū me te ahua o te pāmahana teitei, ko te TaC he taapiri nui ki te witi kirikiriata pai o te WC mo te tapahi taputapu me te tino pakeke rite ki te taimana.Ka taea hoki e ia te whakaeke i te awangawanga nui ki te pāmahana tae atu ki te 3880 ° C, ka kitea nga tono whanui i roto i nga mara penei i te koranu uaua, nga whaainga, nga taputapu raima, nga cermets, nga hikohiko, nga miihini me te umanga rererangi.
Tohutohu Hokonga
Tantalum Carbide TaC Niobium Carbide NbC