Apejuwe
Niobium Carbide NbC,ina brown lulú, pẹlu iṣuu soda kiloraidi iru kubik gara eto, yo ojuami 3490°C, farabale ojuami 4300°C, iwuwo 7.56g/cm3, jẹ insoluble ninu omi ati ni inorganic acid, ṣugbọn tiotuka ninu adalu acid hydrofluoric ati nitric acid ati pe o le jẹ ibajẹ.Niobium Carbide ko le ṣee lo nikan bi aropo lati ṣe idiwọ idagba ti awọn oka alloy lati ṣe itanran ọkà carbide crystalline ti o dara ni iṣelọpọ ti carbide cemented, ṣugbọn tun ṣe ipele ti tuka kẹta pẹlu awọn carbide miiran ayafi WC ati Co, eyiti o le ni ilọsiwaju ni pataki. awọn gbona líle, gbona mọnamọna resistance, gbona titẹ resistance ati ifoyina resistance ti cemented carbide.Pẹlu awọn anfani ti imudarasi lile ati fifọ lile ti alloy, o le ṣee lo lati ṣeto awọn ohun elo ohun elo carbide simenti pẹlu iṣẹ gige ti o dara julọ.Yato si, jijẹ aaye yo ti o ga julọ, líle giga ati iduroṣinṣin kemikali, NbC tun lo bi ohun elo ifasilẹ otutu giga ati ohun elo ti a bo sokiri ni ile-iṣẹ afẹfẹ.
Ifijiṣẹ
Niobium Carbide NbC ati Tantalum Carbide TaC ni Western Minmetals (SC) Corporation le ṣe jiṣẹ ni iwọn ti lulú 0.5-500 micron tabi mesh 5-400 tabi bi sipesifikesonu ti a ṣe adani, package ti 25kg, 50kg ninu apo ṣiṣu pẹlu ilu irin ni ita.
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Imọ Specification
Rara. | Nkan | Standard Specification | |||||||
1 | Awọn ọja | Cr3C2 | NbC | TaC | TiC | VC | ZrC | HfC | |
2 | Akoonu% | Lapapọ C ≥ | 12.8 | 11.1 | 6.2 | 19.1 | 17.7 | 11.2 | 6.15 |
Ọfẹ C ≤ | 0.3 | 0.15 | 0.1 | 0.3 | 0.5 | 0.5 | 0.3 | ||
3 | Kemikali Aimọ PCT Max kọọkan | 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 | Iwọn | 0.5-500micron tabi 5-400mesh tabi bi a ti ṣe adani | |||||||
5 | Iṣakojọpọ | 2kgs ni apo apapo pẹlu irin ilu ita, 25kgs net |
Tantalum Carbide TaC, awọ brown lulú, onigun gara be ti iṣuu soda kiloraidi iru, molikula àdánù 192.96, iwuwo 14.3g/cm3, yo ojuami 3880 ° C, farabale ojuami 5500 ° C, ni insoluble ninu omi ati inorganic acids, ati ki o le tu ni adalu hydrofluoric acid ati nitric acid ati ki o decompose.Tantalum Carbide ṣe ipa pataki ni idinamọ idagbasoke ọkà ati imudarasi líle pupa ati yiya resistance ti alloy, imudarasi resistance ifoyina ati ipata ipata ti alloy ati imudarasi eto ti alloy.Pẹlu iduroṣinṣin kemikali ti o ga ati ihuwasi iwọn otutu giga, TaC jẹ aropo pataki si ọkà garawa ti o dara ti WC fun gige ọpa pẹlu lile nla ti o jọra si diamond.O tun le funni ni resistance nla si iwọn otutu to 3880 ° C, ati rii awọn ohun elo jakejado ni awọn aaye bii awọn ohun elo lile, awọn ibi-afẹde, awọn ohun elo alurinmorin, awọn cermets, ẹrọ itanna, ẹrọ ati ile-iṣẹ ọkọ ofurufu.
Awọn imọran rira
Tantalum Carbide TaC Niobium Carbide NbC