ASTM B392 Niobium Alloy Bar
Niobium (Nb), yav tas los hu ua columbium, yog cov khoom siv tshuaj lom neeg nrog tus lej atomic ntawm 41. Nws feem ntau yog cov khoom siv hluav taws xob, grey, mos hloov hlau.
Hauj lwm lawm
Cov ntawv thov rau niobium suav nrog vuam, kev lag luam nuclear, hluav taws xob, optics, npib thiab jewellery. Hauv ob daim ntawv thov tom kawg, niobium tsis muaj tshuaj lom thiab muaj peev xwm ua kom muaj xim los ntawm anodising yog qhov zoo. Txheej iav nrog ultrafine niobium hmoov txhim kho lub iav muaj peev xwm xa lub teeb yam tsis muaj absorbing los yog refracting nws. Cov txheej kuj ua rau cov iav tiv thaiv glare. Niobium-coated iav yog siv rau hauv lub koob yees duab lo ntsiab muag nrog rau TV thiab computer cov ntxaij vab tshaus.
Khoom Description
Cov khoom tsim ntawm niobium thiab niobium alloys yuav tsum zoo ib yam li cov tooj liab thiab qee cov hlau me me. Qee zaum tooj liab blanks raug sim ua ntej siv niobium. Niobium ntawv hlau tuaj yeem tsim tau yooj yim yam tsis muaj kev ua haujlwm tshwj xeeb. Qhov qis ua hauj lwm-hardening tus nqi ntawm niobium pab txhawb cov haujlwm no. Thaum siv niobium thiab nws cov alloys, ob yam txawv txawv yuav tsum tau xav txog. Ua ntej, vim nws qhov siab melting point, tsis muaj qhov tseem ceeb softening tshwm sim hauv qab 752 degree F (400 degree). Tsis tas li ntawd, kev tiv thaiv sheath tsis yog qhov ua tau zoo vim tias cov khoom siv sheath yuav softer dua niobium. Niobium muaj cov khoom ua haujlwm txias txias. Annealing yuav tsum tau tom qab 90% ntawm qhov saum npoo tau raug machined, nrog rau kev kho cua sov ntawm ib teev ntawm 1200 degree (2192 degree F) kom tag nrho recrystallise cov khoom txias-ua hauj lwm ntau tshaj 50%. Lub annealing yuav tsum tau nqa tawm nyob rau hauv ib tug inert cua los yog nyiam dua nyob rau hauv ib tug siab nqus tsev vacuum.
Qib siab ntawm cov hlau ntau lawm
| Niobium thiab Niobium Alloys Qws & Bar Chemical Composition (wt% Tsawg dua lossis sib npaug) | ||||
|---|---|---|---|---|
| Element | Niobium R04200 | Niobium R04210 | Nb-1%Zirconium R04251 | Nb-1%Zirconium R04261 |
| C | 0.01 | 0.01 | 0.01 | 0.01 |
| N | 0.01 | 0.01 | 0.01 | 0.01 |
| O | 0.015 | 0.025 | 0.015 | 0.025 |
| H | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
| Zr | 0.02 | 0.02 | 0.8 rau 1.2 | 0.8 rau 1.2 |
| Ta | 0.1 | 0.3 | 0.1 | 0.5 |
| Fe | 0.005 | 0.01 | 0.005 | 0.01 |
| S | 0.005 | 0.005 | 0.005 | 0.005 |
| W | 0.03 | 0.05 | 0.03 | 0.05 |
| Ni | 0.005 | 0.005 | 0.005 | 0.005 |
| Mo | 0.010 | 0.020 | 0.010 | 0.050 |
| Hf | 0.02 | 0.02 | 0.02 | 0.02 |
| Ti | 0.02 | 0.03 | 0.02 | 0.03 |
| B | 2ppm ua | - | 2ppm ua | - |
| Al | 0.002 | 0.005 | 0.002 | 0.005 |
| Ua | 0.005 | - | 0.005 | - |
| Cr | 0.002 | - | 0.002 | - |
| C | 0.002 | - | 0.002 | - |
txog peb
Tsim los ntawm 2008, lub tuam txhab tau loj hlob ntau xyoo dhau los ua cov chaw tsim khoom thiab cov khoom siv hlau ua haujlwm rau ntau yam kev lag luam. Lub tuam txhab tsis tu ncua nqis peev hauv kev tshawb fawb thiab kev tsim kho kom zoo dua qub thiab ruaj khov ntawm nws cov khoom. Lub tuam txhab tso siab rau cov neeg siv khoom txaus siab thiab paub txog kev muab cov khoom zoo thiab kev pabcuam zoo rau cov neeg siv khoom. Niaj hnub no, lub tuam txhab muaj lub ntiaj teb no nyob thiab pab cov neeg muas zaub nyob rau hauv lub teb chaws thoob plaws lub ntiaj teb no.
Cim npe nrov: Tuam Tshoj astm b392 niobium alloy bar manufacturers, lwm tus neeg, Hoobkas
