Hma roj cav: tshuaj xyuas, kev qhia tshwj xeeb

2024 Tus sau: Erin Ralphs | [email protected]. Kawg hloov kho: 2024-02-19 16:11

Cov roj cav zoo tuaj yeem ua rau lub cav muaj zog. Cov tebchaw no yog tsim los txo cov kev sib txhuam ntawm qhov chaw ntawm lub zog cog rau ib leeg. Qhov kev xaiv uas tus neeg tsav tsheb ua hauv lub khw yog nyob ntawm lub neej ntawm lub cav thiab qhov zoo ntawm tag nrho lub tshuab. Ntau tus neeg tsav tsheb nyiam siv Hma roj. Kev tshuaj xyuas ntawm cov ntawv sau tau nthuav tawm feem ntau yog qhov zoo heev.

me ntsis txog lub hom

Wolf Oil Corporation tau sau npe hauv Belgium. Nws yog suav hais tias yog ib qho ntawm cov laus tshaj plaws ywj pheej lubricant manufacturers. Tam sim no lub tuam txhab cov khoom tau muab rau 60 lub teb chaws ntawm lub ntiaj teb no. Qee lub tuam txhab tsheb (Cadillac, Opel, Honda thiab lwm tus) tau pom zoo cov khoom sib xyaw ntawm cov hom no rau cov tsheb tom qab muag. Hauv kev tshuaj xyuas ntawm Wolf cav roj, cov neeg tsav tsheb kuj tseem nco ntsoov qhov kev ruaj ntseg ntawm cov roj lubricants zoo. Qhov no tau lees paub los ntawm daim ntawv pov thawj thoob ntiaj teb ISO 9901. Tam sim no lub tuam txhab muaj lub chaw soj ntsuam loj tshaj plaws hauv Europe.

Tus kav

Lub hom phiaj tau tsom mus rau kev tsim cov roj hluavtaws hluavtaws thiab cov roj hluavtaws semi-synthetic. Hauv kev tshuaj xyuas, cov neeg tsav tsheb nco ntsoov qhov ua tau zoo ntawm cov roj nplua nyeem.

Cov roj hluavtaws hluavtaws yog tsim los ntawm cov khoom siv hydrocarbon hydrocracking. Nyob rau tib lub sijhawm, kev hloov kho cov khoom siv kuj tseem ntxiv rau qhov muaj pes tsawg leeg ntawm cov roj nplua nyeem. Lawv txhim khu kev ua tau zoo ntawm cov roj.

Hauv kev tsim khoom ntawm semi-synthetic analogues, lub hom tsuas yog siv cov pob zeb hauv av xwb. Nws yog tau los ntawm yooj yim fractional distillation ntawm cov roj thiab tom qab hydrotreating ntawm cov khoom. Cov tshuaj ntxiv kuj tseem siv tau, tab sis lawv qhov kev faib ua feem yog qis dua me ntsis ntawm cov khoom siv hluavtaws tag nrho.

caij nyoog siv

Thaum ntxov, tag nrho cov roj tau muab faib ua lub caij ntuj sov thiab lub caij ntuj no. Qee lub sij hawm dhau los, tsuas yog txhua lub caij nyoog pib siv. Hma hom tshwj xeeb hauv kev tsim cov khoom siv roj nplua nyeem xwb. 5W30 thiab 5W40 tsheb ciav hlau yog qhov xav tau tshaj plaws ntawm cov neeg tsav tsheb ntawm CIS lub teb chaws. Cov kev faib tawm uas tau nthuav tawm yog npaj los ntawm American Society of Automotive Engineers (SAE). Nws qhia txog cov viscosity ntawm cov roj ntawm qhov sib txawv ntawm kev khiav hauj lwm kub ntawm lub cav.

Hauv kev tshuaj xyuas ntawm Hma 5W30 roj, cov neeg tsav tsheb nco ntsoov tias cov roj nplua nyeem tuaj yeem tuav nws cov viscosity ntawm qhov kub ntawm -30 degrees Celsius. Nyob rau tib lub sijhawm, lub fluidity ntawm cov roj nplua nyeem tso cai rau koj los tso cov roj los ntawm lub cev, tshem tawm cov kev sib txhuam ntawm cov khoom txav ntawm lub cav tawm tsam ib leeg thaum lub sijhawm pib ntawm lub cav.

Tshwj xeeb rau qhov no, manufacturers ntxiv tshwj xeebviscosity additives. Lawv yog cov polymeric compounds, macromolecule uas hloov nws qhov loj nyob ntawm qhov kub thiab txias. Thaum txias, macromolecule poob, uas tso cai rau koj khaws cov viscosity ntawm cov roj hauv qhov yuav tsum tau ua. Thaum rhuab, ntawm qhov tsis sib xws, qhov tshwj xeeb kauv kev sib txuas unwinds, qhov ntom ntawm cov muaj pes tsawg leeg nce. Piv txwv li, hauv kev tshuaj xyuas ntawm Hma 5W40 roj, cov neeg tsav tsheb nco ntsoov tias cov viscosity ntawm cov roj nplua nyeem tseem nyob ruaj khov txawm tias ntawm +45 g. Celsius.

Tus nqi ntawm macromolecule monomers hauv viscosity additives nyob rau hauv cov ntaub ntawv no txawv heev. Qhov ntev ntawm cov saw hlau, qhov ceev ntawm kev puas tsuaj ntawm cov khoom. Yog li ntawd, hauv kev tshuaj xyuas ntawm Hma 5W40 lub cav roj, cov neeg tsav tsheb pom zoo kom hloov cov roj nplua nyeem ntau dua li Hma 5W30.

rau qhov cav

Synthetic thiab semi-synthetic roj qhia tau zoo heev rau cov cav tshiab. Nyob rau tib lub sijhawm, cov lubricants no tuaj yeem tiv taus txawm tias ua haujlwm nyuaj nrog kev nrawm nrawm thiab nres tam sim.

Cov chaw tsim khoom cais tsim cov roj rau diesel thiab roj av fais fab nroj tsuag. Lawv txawv ntawm ib leeg feem ntau nyob rau hauv tus nqi ntawm kev ntxuav additives. Qhov tseeb yog tias cov roj diesel muaj ntau cov sulfur compounds. Nyob rau hauv high kub, lawv hlawv tawm nrog tsim ntawm soot. Nagar settles nyob rau hauv lub internal chamber ntawm lub engine. Ntxuav additives rhuav tshem cov agglomeration, tiv thaiv nws ntxivcoagulation. Qhov no muaj txiaj ntsig zoo rau qhov zoo ntawm lub tshuab fais fab. Piv txwv li, nws muaj peev xwm ua kom lub cav lub zog ruaj khov. Txo lub cav suab nrov.

Kev saib xyuas kom paub meej

Nyob rau hauv kev tsim cov roj Hma, lub tuam txhab cov kws tshuaj tau nce qhov feem ntawm cov khoom siv siab heev. Cov tebchaw ntawm lub cav no tsim ib lub microfilm tshwj xeeb uas txo cov kev sib txhuam ntawm qhov chaw tawm tsam ib leeg.

mais

Kub kub thiab pa oxygen tuaj yeem ua rau roj hlawv. Cov khoom siv ua haujlwm los ntawm qhov no tau txo qis heev. Hauv kev tshuaj xyuas ntawm Hma roj, cov neeg tsav tsheb nco ntsoov tias lub sijhawm hloov pauv yog li 7 txhiab mais. Cov txiaj ntsig tau zoo heev. Qhov tseeb yog tias nyob rau hauv cov tshuaj formula ntawm kev sib tov, cov chaw tsim tshuaj paus nce tus nqi ntawm oxidation inhibitors. Cov roj tsis hlawv. Nws tag nrho cov feem tseem nyob tsis tu ncua siab. Lawm, qhov no muaj txiaj ntsig zoo rau kev cog hluav taws xob zoo.

Yuav ua li cas xaiv

hom roj no yog nyob rau qeb nqi nruab nrab. Qhov nrov ntawm cov roj nplua nyeem tau coj mus rau qhov tseeb tias ntau tus fakes tau tshwm sim nyob rau hauv cov khw muag khoom chains. Txhawm rau txo qhov kev pheej hmoo ntawm kev tau txais cov khoom cuav, koj yuav tsum ua raws qee cov cai yooj yim. Ua ntej, nws yog qhov zoo dua los yuav Hma roj hauv cov khw tshwj xeeb. Ua ntej yuav tau txais nws tus kheej, koj yuav tsum tau thov ib daim ntawv pov thawj ntawm conformity. Secondly, koj yuav tsum xyuam xim rau lub canister. Lub vuam seam yuav tsum sib npaug, tsis muaj qhov pom qhov tsis xws luag.