"Varnish paug yog ib qho teeb meem tshwm sim hauv ntau cov roj turbine roj.Hom kab mob no puas muaj polar zog?Ntau cov ntaub ntawv muaj nyob rau hauv kev sib tham txog cov kua roj vanish, nws cov laj thawj thiab kev kho.Nyob rau hauv feem ntau ntawm cov ntaub ntawv no, lub ncov qaumteb qabteb khoom ntawm cov kua roj vanish cov ntsiab lus tau txais raws li qhov tseeb pov thawj, tab sis peb cov kev tshawb fawb thiab kev sim tsis txhawb qhov no.Koj xav li cas txog qhov teeb meem?
Feem ntau, cov kua roj vanish yog paub tias muaj cov khoom siv polar.Txawm li cas los xij, nws tuaj yeem muaj cov tsis muaj polar constituents.Varnish tsis yooj yim los txhais vim tias tsis muaj ib hom.Ntau yam cuam tshuam rau hom kua roj vanish uas tsim, nrog rau kev ua haujlwm, hom roj thiab ib puag ncig.
Es tsis txhob sim muab qhov tshwj xeeb ntawm cov khoom ntawm cov kua roj vanish, hauv qab no yog cov npe ntawm 10 yam uas yuav tsum tau nkag siab txog cov kua roj vanish raws li nws siv rau lubrication.
1. Kev tsim cov kua roj vanish tuaj yeem pib los ntawm oxidation thiab polymerization ntawm lubricants thiab lwm yam kua los yog siab-induced thermal degradation thiab dieseling.Daim duab hauv qab no qhia txog cov txheej txheem tseem ceeb rau kev tsim cov kua roj vanish.Txawm hais tias muaj ntau lwm yam ua rau cov kua roj vanish, cov no yog cov tseem ceeb tshaj plaws.
2. Varnish feem ntau yog submicron loj thiab feem ntau muaj cov khoom siv oxide los yog carbonaceous.Nws cov neeg tuaj yeem tuaj yeem tau txais los ntawm cov khoom siv thermo-oxidative ntawm cov roj molecules thiab cov khoom siv ntxiv nrog rau hnav cov hlau thiab cov kab mob xws li av thiab noo noo.Cyclical kev hloov ntawm cua sov thiab txias ua rau cov roj rau thermal degradation thiab oxidation.
3. Kev tsim cov kua roj vanish thiab sludge tshwm sim los ntawm nag lossis daus ntawm high-molecular-yuag insoluble oxides los ntawm cov roj.Raws li feem ntau cov polar tshuaj, cov oxides muaj kev txwv tsis pub solubility nyob rau hauv cov roj uas tsis yog-polar zoo li cov roj turbine.
4. Qhov no tsim ib daim nyias nyias, insoluble zaj duab xis uas coats sab hauv ntawm lub tshuab qhov chaw thiab ua rau sticking thiab malfunctioning ntawm ze-clearance txav qhov chaw xws li servo-valves.
5. Cov tsos ntawm cov kua roj vanish ntawm sab hauv tshuab qhov chaw tuaj yeem hloov los ntawm cov xim tan mus rau cov khoom siv lacquer tsaus nti.
6. Cov kua roj vanish kuj tuaj yeem tshwm sim los ntawm entrained cua npuas nyob rau hauv lub adiabatic compression nyob rau hauv load aav.Cov cua npuas no yog compressed sai, ua rau thermal decomposition ntawm cov roj thiab additives.
7. Thaum lub sij hawm thawj theem ntawm oxidation thiab tsim oxidation byproducts, Group II puag stocks yog ntau resistant.Txawm li cas los xij, raws li ntau oxidation byproducts daim ntawv, cov khoom hauv paus tuaj yeem ua rau muaj teeb meem rau cov kua roj vanish vim lawv qib siab dua ntawm polarity.
8. Kev khiav hauj lwm tej yam kev mob xws li high-pressure sib txawv cheeb tsam, lub sij hawm nyob ntev thiab cov kab mob xws li dej yuav txhawb oxidation.
9. Ntxiv rau qhov tsaus nti ntawm cov roj, cov kua roj vanish tuaj yeem pom qhov pom los ntawm kev paub txog cov khoom seem, tar lossis gummy zoo li cov khoom siv hauv cov tsom iav pom, lub tshuab sab hauv, cov ntsiab lus lim dej thiab cov centrifugal separators.
10. Varnish muaj peev xwm kuj tuaj yeem soj ntsuam los ntawm kev soj ntsuam roj siv Fourier transform infrared (FTIR) spectroscopy, ib qho ultracentrifuge, colorimetric tsom xam, gravimetric tsom xam thiab membrane thaj colorimetry (MPC).
Post lub sij hawm: May-29-2022