High Purity Ferro Niobium Hauv Tshuag
NIOBIUM - Cov khoom siv rau kev tsim kho tshiab nrog lub peev xwm zoo rau yav tom ntej
Niobium yog lub teeb grey hlau nrog gleaming dawb tsos ntawm polished nto. Nws yog tus cwj pwm los ntawm qhov siab melting point ntawm 2,477 ° C thiab qhov ceev ntawm 8.58g / cm³. Niobium tuaj yeem tsim tau yooj yim, txawm tias qhov kub thiab txias. Niobium yog ductile thiab tshwm sim nrog tantalum nyob rau hauv ib tug natural ore. Zoo li tantalum, niobium kuj tseem muaj cov tshuaj lom neeg thiab oxidation tsis kam.
| chemical muaj pes tsawg leeg%
| Hom | ||||
| FeB 70 | FeNb60-A | FeNb60-B | FeNb50-A | FeNb50-B | |
| Nb+Ta | |||||
| 70-80 ib | 60-70 | 60-70 | 50-60 | 50-60 | |
| Ta | 0.8 ua | 0.5 | 0.8 ua | 0.8 ua | 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 ib | 0.04 ib | 0.05 Nws | 0.05 Nws | 0.05 Nws |
| S | 0.03 ib | 0.02 ib | 0.03 ib | 0.03 ib | 0.03 ib |
| P | 0.04 ib | 0.02 ib | 0.05 Nws | 0.05 Nws | 0.05 Nws |
| 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 ib | 0.005 ib | 0.005 ib | 0.005 ib | - |
| Sn | 0.002 ib | 0.002 ib | 0.002 ib | 0.002 ib | - |
| Sb | 0.002 ib | 0.002 ib | 0.002 ib | 0.002 ib | - |
| Pb | 0.002 ib | 0.002 ib | 0.002 ib | 0.002 ib | - |
| Bi | 0.002 ib | 0.002 ib | 0.002 ib | 0.002 ib | - |
Kev piav qhia:
Lub ntsiab tseem ceeb ntawm ferroniobium yog hlau alloy ntawm niobium thiab hlau. Nws kuj muaj cov impurities xws li txhuas, silicon, carbon, sulfur, thiab phosphorus. Raws li cov ntsiab lus niobium ntawm cov hlau, nws muab faib ua FeNb50, FeNb60 thiab FeNb70. Cov hlau alloy tsim nrog niobium-tantalum ore muaj tantalum, hu ua niobium-tantalum hlau. Ferro-niobium thiab niobium-nickel alloys yog siv los ua niobium additives nyob rau hauv lub tshuab nqus tsev smelting ntawm hlau-raws li alloys thiab nickel-based alloys. Nws yuav tsum muaj cov ntsiab lus roj tsawg thiab tsis muaj teeb meem tsis zoo, xws li Pb, Sb, Bi, Sn, As, thiab lwm yam. <2 × 10, yog li nws hu ua "VQ" (lub tshuab nqus tsev zoo), xws li VQFeNb, VQNiNb, lwm.
Daim ntawv thov:
Ferroniobium feem ntau yog siv rau smelting kub (heat resistant) alloy, stainless hlau thiab siab zog uas tsis muaj alloy hlau. Niobium cov ntaub ntawv ruaj khov niobium carbide nrog carbon nyob rau hauv stainless hlau thiab kub resistant hlau. Nws tuaj yeem tiv thaiv kev loj hlob ntawm cov qoob loo ntawm qhov kub thiab txias, kho cov qauv ntawm cov hlau, thiab txhim kho lub zog, toughness thiab creep zog ntawm steel.
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