Dab tsi yog qhov sib txawv ntawm tsib lub hauv paus roj?

Dab tsi yog qhov sib txawv ntawm tsib lub hauv paus roj?

Lubricating roj yog tsim los ntawm cov roj hauv paus thiab cov khoom siv ntxiv, cov roj hauv paus tau muab faib ua tsib yam, raws li ⅠⅡⅢⅣⅤ chav kawm roj, Bang tswv qhia koj txog tsib hom roj hauv paus no txawv.

Class I puag roj

Cov txheej txheem ntau lawm ntawm cov tshuaj hnyav refining ntxhia roj, Class I puag roj yog qhov tseem ceeb raws li cov txheej txheem ntawm lub cev, tsis hloov cov qauv ntawm hydrocarbons, qhov kev ua tau zoo yog ncaj qha ntsig txog cov khoom siv raw, kev ua tau zoo heev, yog qhov pheej yig tshaj. lub hauv paus roj ntawm kev ua lag luam.

Class II base oil

Hydrocracking ntxhia roj, Class II puag roj yog npaj los ntawm kev sib xyaw ua ke (cov txheej txheem hnyav ua ke nrog cov txheej txheem hydrogenation), feem ntau yog los ntawm cov txheej txheem tshuaj, tuaj yeem hloov cov qauv hydrocarbon qub. Yog li ntawd, Class II hauv paus roj muaj tsawg impurities, siab cov ntsiab lus ntawm saturated hydrocarbons, zoo thermal stability thiab oxygen tsis kam, tsis kub thiab soot dispersion kev ua tau zoo dua li Class I puag roj.

Class III base oil

Sib sib zog nqus hydroisomerization dewaxing hauv paus roj, Class III puag roj yog qhov yuav tsum tau dewaxing raw cov ntaub ntawv uas muaj cov ntsiab lus hydrogen, nrog rau tag nrho cov hydrogenation txheej txheem, teej tug mus rau lub siab viscosity Performance index hydrogenation puag roj, tseem hu ua unconventional base roj (UCBO), ntau tshaj. class I base oil thiab Class II base oil hauv kev ua tau zoo.

Class IV base oil

Polyalphaolefin hluavtaws roj, tseem hu ua PAO puag roj. Cov kev siv ntau lawm ntawm chav kawm IV hauv paus roj yog cov txheej txheem paraffin cracking thiab ethylene polymerization txoj kev, thiab cov roj hauv paus tsim los ntawm macromolecules yog ua kom zoo los ntawm cov tshuaj lom neeg nyuaj. Cov molecules yog teem kom zoo, cov roj yog zoo, muaj ib tug siab viscosity Performance index, zoo heev oxidation kuj thiab thermal stability, tsis tshua muaj volatility.

Class V base oil

Class V puag roj, ntxiv rau cov chav kawm I-IV hauv paus roj lwm cov roj hluavtaws, suav nrog hluavtaws hydrocarbons, esters, silicone roj thiab lwm cov roj zaub, sau ua ke hu ua Class V puag roj.