Kufotokozera
Niobium Carbide NbC,kuwala bulauni ufa, ndi sodium kolorayidi mtundu kiyubiki kristalo dongosolo, kusungunuka 3490 ° C, otentha mfundo 4300 ° C, kachulukidwe 7.56g/cm3, sichisungunuka m'madzi ndi mu asidi, koma imasungunuka mu asidi osakanikirana a hydrofluoric acid ndi nitric acid ndipo amatha kuwola.Niobium Carbide sangagwiritsidwe ntchito ngati chowonjezera choletsa kukula kwa mbewu za aloyi kuti muchepetse njere za simenti ya carbide popanga simenti ya carbide, komanso kupanga gawo lachitatu lomwazika ndi ma carbides ena kupatula WC ndi Co, zomwe zimatha kusintha kwambiri. kuuma kwamafuta, kukana kugwedezeka kwamafuta, kukanikiza kotentha komanso kukana kwa okosijeni kwa carbide yopangidwa ndi simenti.Ndi zabwino zowonjezera kuuma komanso kulimba kwa fracture kwa aloyi, itha kugwiritsidwa ntchito pokonzekera zida zopangira simenti ya carbide ndi ntchito yabwino yodula.Kupatula apo, pokhala malo osungunuka kwambiri, kuuma kwakukulu ndi kukhazikika kwamankhwala, NbC imagwiritsidwanso ntchito ngati zinthu zodzitetezera kwambiri komanso zopopera zopopera pamakampani azamlengalenga.
Kutumiza
Niobium Carbide NbC ndi Tantalum Carbide TaC ku Western Minmetals (SC) Corporation ikhoza kuperekedwa mu kukula kwa ufa 0.5-500 micron kapena 5-400 mauna kapena monga mwamakonda, phukusi la 25kg, 50kg m'thumba lapulasitiki lokhala ndi ng'oma yachitsulo kunja.
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Kufotokozera zaukadaulo
Ayi. | Kanthu | Mafotokozedwe Okhazikika | |||||||
1 | Zogulitsa | Cr3C2 | NbC | TaC | TiC | VC | ZrC | HfC | |
2 | Zamkati % | Zonse C ≥ | 12.8 | 11.1 | 6.2 | 19.1 | 17.7 | 11.2 | 6.15 |
Zaulere C ≤ | 0.3 | 0.15 | 0.1 | 0.3 | 0.5 | 0.5 | 0.3 | ||
3 | Chemical Chidetso PCT Max aliyense | 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 | Kukula | 0.5-500micron kapena 5-400mesh kapena makonda | |||||||
5 | Kulongedza | 2kgs mu thumba lamagulu ndi ng'oma yachitsulo kunja, 25kgs ukonde |
Tantalum Carbide TaC, bulauni mtundu ufa, kiyubiki kristalo kapangidwe mtundu sodium kolorayidi, molecular kulemera 192.96, kachulukidwe 14.3g/cm3, malo osungunuka 3880 ° C, otentha 5500 ° C, sasungunuke m'madzi ndi ma inorganic acid, ndipo amatha kusungunuka mu chisakanizo cha hydrofluoric acid ndi nitric acid ndikuwola.Tantalum Carbide imagwira ntchito yofunika kwambiri poletsa kukula kwa tirigu ndikuwongolera kuuma kofiira komanso kuvala kukana kwa aloyi, kukulitsa kukana kwa okosijeni komanso kukana kwa dzimbiri kwa aloyi ndikuwongolera kapangidwe ka aloyi.Pokhala ndi kukhazikika kwamankhwala komanso kutentha kwambiri, TaC ndiyowonjezera ku njere yabwino ya crystalline ya WC yodula chida cholimba kwambiri chofanana ndi diamondi.Ikhozanso kukana kwambiri kutentha mpaka 3880 ° C, ndipo imapeza ntchito zambiri m'madera monga ma alloys olimba, zolinga, zipangizo zowotcherera, cermets, zamagetsi, makina ndi ndege.
Malangizo Ogulira
Tantalum Carbide TaC Niobium Carbide NbC