Yuav ua li cas dilute antifreeze concentrate?
Antifreeze concentrate yog dab tsi?
Concentrated antifreeze yog ploj lawm ib feem: dej distilled. Tag nrho lwm cov khoom xyaw (ethylene glycol, additives thiab colorant) feem ntau muaj nyob rau hauv tag nrho.
Coolant concentrates feem ntau yuam kev tsis meej pem nrog cov ntshiab ethylene glycol. Qee cov tuam ntxhab qhia ntawm lub ntim tias tsuas muaj ethylene glycol hauv. Txawm li cas los xij, qhov no tsis tuaj yeem muaj tseeb vim tias ethylene glycol yog cov kua tsis muaj xim. Thiab yuav luag tag nrho cov concentrates yog xim raws li kev lees paub hauv chav kawm (G11 - ntsuab, G12 - liab lossis daj, thiab lwm yam).
Yav dhau los, cov xim tsis muaj xim coolant concentrates tau muag muag. Tej zaum lawv yuav siv cov ntshiab ethylene glycol. Txawm li cas los xij, nws yog qhov tsis xav tau siv xws li kev mloog zoo rau kev npaj ntawm qib high-qib coolant. Tseeb, tsis muaj additives, hlau corrosion thiab kev puas tsuaj ntawm cov yeeb nkab roj hmab yuav ua kom nrawm heev. Thiab cov kev sib xyaw no tsuas yog tsim los txhim kho cov khoom qis-kub ntawm cov uas twb tau nchuav los tiv thaiv kab mob.
Kev cog qoob loo technology thiab proportions
Ua ntej, cia peb xam seb yuav ua li cas sib tov cov concentrate nrog dej kom koj tsis tas yuav nchuav tawm cov txiaj ntsig tom qab.
- Qhov sib lawv liag ntawm dab tsi ncuav rau hauv tsis muaj teeb meem. Ib yam li lub thawv uas qhov sib tov yuav tshwm sim. Nws tsuas yog ib qho tseem ceeb kom khaws cov proportions.
- Ncuav dej rau hauv lub tank nthuav dav ua ntej, thiab tom qab ntawd cov concentrate, qee zaum nws ua tau, tab sis tsis xav tau. Ua ntej, yog tias koj tab tom npaj tshuaj tua kab mob tam sim ntawd rau kev hloov ua tiav, ces tus nqi koj suav yuav tsis txaus. Los yog, conversely, koj tau txais antifreeze ntau dhau lawm. Piv txwv li, koj thawj zaug ncuav 3 liv ntawm concentrate, thiab ces npaj yuav ntxiv 3 liv dej. Vim lawv paub tias tag nrho cov ntim ntawm coolant nyob rau hauv lub system yog 6 litres. Txawm li cas los xij, 3 litres ntawm concentrates haum tsis muaj teeb meem, thiab tsuas yog 2,5 liv dej nkag. Vim tias tseem muaj qhov qub txeeg qub teg hauv lub cev, lossis muaj lub tshuab hluav taws xob tsis zoo, lossis muaj qee qhov laj thawj. Thiab nyob rau lub caij ntuj no, ntawm qhov kub ntawm -13 ° C, nws yog nruj me ntsis txwv tsis pub sau cov kua cais. Paradoxical, tab sis muaj tseeb: ntshiab ethylene glycol (zoo li antifreeze concentrate) khov ntawm qhov kub ntawm -13 ° C.
- Tsis txhob ntxiv cov concentrate ntawm ib lub coolant mus rau lwm tus. Muaj cov xwm txheej thaum, thaum sib xyaw ua ke, qee qhov ntawm cov additives sib tsoo thiab nag lossis daus.
Muaj peb hom kev sib xyaw ua ke rau cov coolants:
- 1 mus rau 1 - antifreeze nrog qhov chaw khov ntawm txog -35 ° C tau txais ntawm qhov hluav taws xob;
- 40% mloog zoo, 60% dej - koj tau txais ib tug coolant uas yuav tsis khov mus txog -25 ° C;
- 60% concentrate, 40% dej - antifreeze uas yuav tiv taus kub mus rau -55 ° C.
Txhawm rau tsim cov tshuaj tiv thaiv kab mob nrog rau lwm cov ntsiab lus khov, muaj ib lub rooj hauv qab no uas qhia tau hais tias muaj ntau yam sib xyaw ua ke.
| Concentrate cov ntsiab lus nyob rau hauv qhov sib tov,% | Kev tiv thaiv kab mob khaub thuas, ° C |
| 100 | -12 |
| 95 | -22 |
| 90 | -29 |
| 80 | -48 |
| 75 | -58 |
| 67 | -75 |
| 60 | -55 |
| 55 | -42 |
| 50 | -34 |
| 40 | -24 |
| 30 | -15 |
