Precious Hlau Re rau siab kub alloy
Kev piav qhia
Rhenium (Re) yog cov hlau tsis tshua muaj nqi thiab muaj txiaj ntsig zoo uas muaj cov khoom tshwj xeeb uas ua rau nws xav tau ntau yam kev siv.Nws yog xim dawb-dawb, hnyav hlau nrog lub siab melting point thiab siab ceev, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv nyob rau hauv qhov kub thiab txias ib puag ncig.
Ib qho ntawm cov kev siv tseem ceeb ntawm rhenium yog nyob rau hauv kev tsim cov high-temperature alloys rau siv nyob rau hauv dav hlau xyaw.Qhov tseeb, kwv yees li 70% ntawm lub ntiaj teb rhenium yog siv li no.Rhenium ntxiv rau cov hlau no los txhim kho lawv cov kev ua haujlwm kub, nrog rau lawv lub zog, ua haujlwm ntev, thiab tsis kam hnav thiab corrosion.
Lwm daim ntawv thov tseem ceeb ntawm rhenium yog nyob rau hauv kev tsim cov platinum-rhenium catalysts.Cov catalysts no yog siv rau hauv kev lag luam chemical los txhawb kev hloov pauv ntawm hydrocarbons thiab lwm yam sib txuas rau hauv cov khoom muaj txiaj ntsig, xws li roj av, plastics, thiab lwm yam tshuaj.
Ntxiv rau cov ntawv thov no, rhenium kuj tau siv rau hauv lwm qhov chaw, xws li hauv kev lag luam aerospace rau foob pob hluav taws nozzles thiab hauv kev lag luam hluav taws xob rau kev sib cuag hluav taws xob thiab lwm yam khoom siv.Vim nws qhov tsis tshua muaj thiab tus nqi siab, rhenium yog suav tias yog cov hlau muaj txiaj ntsig thiab muaj nuj nqis rau nws cov khoom tshwj xeeb thiab ntau yam kev siv.
Chemistry
| Element | Re | O | |
|---|---|---|---|
| Loj (%) | Purity ≥99.9 | ≤0.1 | |
Lub cev muaj zog
| PSD | Tus nqi ntws (sec / 50g) | Qhov ntom ntom (g / cm3) | Sphericity | |
|---|---|---|---|---|
| 5-63 hli | ≤ 15s / 50g | ≥7.5g / cm3 | ≥90% | |
