I-High Purity Ferro Niobium Esitokweni
I-NIOBIUM – Impahla yokuqamba emisha enamandla amakhulu esikhathi esizayo
I-Niobium iyinsimbi empunga ngokukhanyayo nokubukeka okumhlophe okubenyezelayo ezindaweni ezipholishiwe. Ibonakala ngephoyinti eliphezulu lokuncibilika elingu-2,477°C kanye nokuminyana okungu-8.58g/cm³. I-Niobium ingakhiwa kalula, ngisho namazinga okushisa aphansi. I-Niobium iyi-ductile futhi ivela nge-tantalum ku-ore yemvelo. Njenge-tantalum, i-niobium iphinde ibe nokumelana okuvelele kwamakhemikhali kanye ne-oxidation.
| ukwakheka kwekhemikhali%
| Ibhrendi | ||||
| FeNb70 | I-FeNb60-A | I-FeNb60-B | I-FeNb50-A | I-FeNb50-B | |
| Nb+Ta | |||||
| 70-80 | 60-70 | 60-70 | 50-60 | 50-60 | |
| Ta | 0.8 | 0.5 | 0.8 | 0.8 | 1.5 |
| Al | 3.8 | 2.0 | 2.0 | 2.0 | 2.0 |
| Si | 1.5 | 0.4 | 1.0 | 1.2 | 4.0 |
| C | 0.04 | 0.04 | 0.05 | 0.05 | 0.05 |
| S | 0.03 | 0.02 | 0.03 | 0.03 | 0.03 |
| P | 0.04 | 0.02 | 0.05 | 0.05 | 0.05 |
| W | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Ti | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Cu | 0.3 | 0.3 | 0.3 | 0.3 | - |
| Mn | 0.3 | 0.3 | 0.3 | 0.3 | - |
| As | 0.005 | 0.005 | 0.005 | 0.005 | - |
| Sn | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Sb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Pb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Bi | 0.002 | 0.002 | 0.002 | 0.002 | - |
Incazelo:
Ingxenye eyinhloko ye-ferronobium iyingxube yensimbi ye-niobium nensimbi. Futhi iqukethe ukungcola okufana ne-aluminium, i-silicon, i-carbon, isulfure, ne-phosphorus. Ngokusho kokuqukethwe kwe-niobium kwe-alloy, ihlukaniswe yaba yi-FeNb50, FeNb60 kanye ne-FeNb70. I-iron alloy ekhiqizwa nge-niobium-tantalum ore iqukethe i-tantalum, ebizwa ngokuthi i-niobium-tantalum iron. Ama-alloys e-Ferro-niobium kanye ne-niobium-nickel asetshenziswa njengezithasiselo ze-niobium ekuncibilikeni kwe-vacuum kwama-alloys asekelwe ku-iron nama-alloys asekelwe ku-nickel. Kudingeka ukuthi kube negesi ephansi kanye nokungcola okuyingozi okuphansi, okufana ne-Pb, Sb, Bi, Sn, As, njll. <2×10, ngakho-ke ibizwa ngokuthi "VQ" (ikhwalithi ye-vacuum), njenge-VQFeNb, VQNiNb, njll.
Isicelo:
I-Ferroniobium isetshenziselwa kakhulu ukuncibilikisa izinga lokushisa eliphezulu (elingamelani nokushisa) ingxubevange, insimbi engagqwali kanye namandla aphezulu aphansi i-alloy steel. I-Niobium yakha i-niobium carbide ezinzile nekhabhoni ngensimbi engagqwali kanye nensimbi ekwazi ukumelana nokushisa. Kungavimbela ukukhula okusanhlamvu ekushiseni okuphezulu, kucwengisise ukwakheka kwensimbi, futhi kuthuthukise amandla, ukuqina kanye nezakhiwo ezinwabuzelayo zensimbi.
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