Cov roj hluavtaws puas tuaj yeem sib xyaw thiab semi-synthetic engine roj? ZIK, Txawb, Castrol, thiab lwm yam.
Ntau tus neeg tsav tsheb feem ntau xav tias nws puas raug tso cai sib xyaw cov roj hluav taws xob hluavtaws thiab semi-synthetics? Cia peb sim ua kom tiav.
Cov roj hluavtaws hluavtaws yog dab tsi?
Synthetic motor oil (synthetics) yog npaj rau hauv chav kuaj, tsim ntau cov qauv. Xws li cov roj tuaj yeem txo qhov kev sib txhuam ntawm qhov chaw ntawm lub cav. Qhov no zoo heev ua rau lub neej ntawm lub cav. Tib lub sijhawm, kev siv roj tsawg tsawg.
Xws li lub cav tuaj yeem ua haujlwm ntawm qhov kub thiab txias, nyob rau hauv cov xwm txheej hnyav tshaj plaws. Dab tsi txawv cov roj hluavtaws los ntawm cov roj ntxhia yog cov txheej txheem tshuaj lom neeg.
Lub hauv paus ntawm cov roj yog roj, uas yog ua tiav ntawm qib molecular kom tau cov roj ntxhia. Nws yog ua ke nrog additives, los ntawm kev siv uas lawv muab cov roj tshwj xeeb yam ntxwv.
Qhov tseeb, hluavtaws yog cov roj ntxhia zoo dua.
Cov xwm txheej tshwj xeeb tsim ua rau tus nqi siab. Tsuas yog cov tsheb zoo tshaj plaws tso cai rau lawv tus kheej los tsim cov cav uas nws pom zoo kom siv cov roj no.
Ib tug yam ntxwv feature ntawm hluavtaws roj yog muaj peev xwm khaws nws cov khoom nyob rau hauv lub sij hawm. Lwm yam khoom muaj xws li:
- siab viscosity;
- ruaj khov thermal oxidation;
- xyaum inevaporable;
- ua haujlwm zoo thaum txias;
- txo coefficient ntawm kev sib txhuam.
Cov khoom sib xyaw ua ke suav nrog cov khoom xws li esters thiab hydrocarbons. Qhov taw qhia tseem ceeb yog viscosity (tus qauv yog nyob rau hauv thaj tsam ntawm 120-150).
Semi-synthetic engine roj yog dab tsi?
Semi-synthetics yog tau los ntawm kev sib txuas cov ntxhia thiab hluavtaws roj hauv ib qho kev faib ua feem. 70/30 yog suav tias yog qhov zoo tshaj plaws. Semi-synthetic roj sib txawv hauv viscosity, i.e. muaj peev xwm nyob twj ywm ntawm qhov chaw ntawm lub cav, tab sis tsis poob fluidity. Qhov siab dua qhov viscosity, cov roj ntau dua ntawm cov khoom.
Semi-synthetic yog hom roj ntau tshaj plaws niaj hnub no. Nws ntau lawm tsis xav tau cov nqi siab, thiab cov khoom tsuas yog me ntsis qis dua rau cov khoom siv hluavtaws.
Koj puas tuaj yeem sib tov?
Cov neeg kho ntawm vodi.su portal categorically tsis pom zoo kom sib xyaw cov roj sib txawv. Tsis tas li, thiab tej zaum yuav muaj kev phom sij ntau dua, hloov cov chaw tsim khoom. Nws yog tsis yooj yim sua los twv seb yuav ua li cas los ntawm xws li ib tug synthesis. Nws tsuas yog txaus ntshai los ua qhov kev sim no yam tsis muaj lub chaw kuaj mob, cov cuab yeej siv thiab cov kev sim ua tiav. Qhov kev xaiv loj tshaj plaws yog siv cov khoom lag luam ntawm tib hom. Tom qab ntawd muaj qhov ua tau ntawm qee qhov kev sib raug zoo. Feem ntau sib tov tshwm sim thaum hloov roj. Koj yuav tsum tsis txhob hloov cov chaw tsim khoom, yuav muaj kev phom sij ntau dua li hloov cov roj hluavtaws nrog cov khoom siv hluavtaws, tab sis los ntawm tib lub chaw tsim khoom.
Thaum twg yog qhov yuav tsum tau muaj lub tshuab nqus dej?
Koj yuav tsum yaug lub engine:
- thaum hloov ib hom roj nrog lwm tus;
- thaum hloov cov chaw tsim khoom roj;
- thaum hloov cov roj tsis muaj (piv txwv li, viscosity);
- nyob rau hauv cov ntaub ntawv ntawm kev sib cuag nrog txawv teb chaws kua;
- thaum siv cov roj tsis zoo.
Raws li qhov tshwm sim ntawm inept manipulations nrog roj, lub cav yuav muaj ib hnub yooj yim jam, tsis hais txog kev poob ntawm lub zog, cuam tshuam hauv kev ua haujlwm thiab lwm yam "kev ntxim nyiam".
Tab sis, tsis yog txhua yam yooj yim heev. Kev sib xyaw cov roj sib txawv muaj nws cov kiv cua. Qhov kev txhawb siab yog yooj yim. Yog hais tias koj ntxiv me ntsis ntxiv synthetics, lawv yuav tsis phem dua.
Tej zaum nws yog li ntawd, tab sis tsuas yog nyob rau hauv kab ntawm ib lub chaw tsim khoom, thiab tom qab ntawd yog tias nws cov khoom ua raws li API thiab ACEA cov qauv. Tom qab tag nrho, txhua leej txhua tus muaj lawv tus kheej additives. Dab tsi yuav tshwm sim - tsis muaj leej twg paub.
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