Ga ti nw Ferro Niobium Ni iṣura
NIOBIUM - Ohun elo fun awọn imotuntun pẹlu agbara iwaju nla
Niobium jẹ irin grẹy ina pẹlu irisi funfun didan lori awọn ibi didan. O jẹ ifihan nipasẹ aaye yo ti o ga ti 2,477°C ati iwuwo ti 8.58g/cm³. Niobium le ni irọrun ṣẹda, paapaa ni awọn iwọn otutu kekere. Niobium jẹ ductile ati pe o waye pẹlu tantalum ni erupẹ adayeba. Gẹgẹ bi tantalum, niobium tun ṣe ẹya kemikali to dayato ati resistance ifoyina.
| akopọ kemikali%
| Brand | ||||
| FeNb70 | FeNb60-A | FeNb60-B | FeNb50-A | 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 | - |
Apejuwe:
Ẹya akọkọ ti ferroniobium jẹ ohun elo irin ti niobium ati irin. O tun ni awọn aimọ gẹgẹbi aluminiomu, silikoni, erogba, imi-ọjọ, ati irawọ owurọ. Gẹgẹbi akoonu niobium ti alloy, o pin si FeNb50, FeNb60 ati FeNb70. Irin alloy ti a ṣe pẹlu niobium-tantalum ore ni tantalum, ti a npe ni niobium-tantalum iron. Ferro-niobium ati niobium-nickel alloys ni a lo bi awọn afikun niobium ni gbigbẹ igbale ti awọn ohun elo ti o da lori irin ati awọn ohun elo nickel. O nilo lati ni akoonu gaasi kekere ati awọn idoti ipalara kekere, gẹgẹbi Pb, Sb, Bi, Sn, As, ati bẹbẹ lọ <2×10, nitorinaa o pe ni “VQ” (didara igbale), gẹgẹbi VQFeNb, VQNiNb, ati be be lo.
Ohun elo:
Ferroniobium ti wa ni o kun lo fun smelting ga otutu (ooru sooro) alloy, irin alagbara, irin ati ki o ga agbara kekere alloy, irin. Niobium fọọmu niobium carbide idurosinsin pẹlu erogba ni irin alagbara, irin ati ooru sooro, irin. O le ṣe idiwọ idagbasoke ọkà ni iwọn otutu ti o ga, ṣatunṣe ọna ti irin, ati mu agbara, lile ati awọn ohun-ini ti nrakò ti irin pọ si.
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