Tosol yog lub npe nrov tshaj plaws hauv tsev tiv thaiv kab mob rau lub tsheb txias. Thaum xaiv cov khoom no, nws yog ib qho tsim nyog yuav tau soj ntsuam ib tug xov tooj ntawm nws cov tsis. Ua ntej tshaj plaws, qhov no yog qhov zoo ntawm cov khoom nthuav tawm rau kev muag khoom. Kev ua haujlwm raug ntawm lub tsheb lub tshuab thiab lawv cov kav ntev yuav nyob ntawm qhov no.
Qhov ntom ntawm cov tshuaj tiv thaiv kab mob yog ib qho ntawm cov yam ntxwv tseem ceeb tshaj plaws uas tso cai rau tus neeg yuav khoom los ntsuas kev ua haujlwm. Tom qab tag nrho, kev ua raws li antifreeze nrog niaj hnub kev cai yog ib tug guarantee ntawm kev ua hauj lwm raug ntawm tag nrho cov mechanisms.
yam ntxwv dav dav thiab muaj pes tsawg leeg
Yuav kom nkag siab txog kev ntsuas qhov ntom ntawm cov tshuaj tiv thaiv kab mob thiab tshuaj tiv thaiv kab mob, koj yuav tsum nkag siab txog lawv cov yam ntxwv thiab kev txhais. Cov khoom uas tau nthuav tawm yog xav tau kom txias lub cev muaj zog thaum lub caij ntuj sov thiab tiv thaiv nws los ntawm kev puas tsuaj rau lub caij ntuj no.
Lub npe tshuaj tiv thaiv kab mob yog ua raws li tus lej luv. TOS yog thev naus laus zis ntawm cov organic synthesis. Ob tsab ntawv kawg ntawm lub npe qhia tias cov tshuaj yog nyob rau hauv pawg cawv, uas, raws li koj paub, xaus rau "ol".
Lub hauv paus ntawm kev tiv thaiv kab mob yog glycol ether. Muaj txog 10 qhov sib txawvtshuaj ntxiv. Ua tsaug rau qhov no, antifreeze tsis cuam tshuam los ntawm Frost los yog cua sov, tsis boil los yog ua npuas ncauj. Cov additives tshwj xeeb tshem tawm qhov cuam tshuam ntawm cov khoom siv ntawm cov txheej txheem, kom lawv tsis raug corrosion. Antifreeze tuaj yeem khaws cia thiab siv tau ntev heev vim nws qhov tshwj xeeb muaj pes tsawg leeg.
Dab tsi yog qhov ntom ntom?
Qhov ntom ntawm cov tshuaj tiv thaiv kab mob tuaj yeem qhia ntau yam txog lub xeev ntawm cov tshuaj no thaum ua haujlwm. Yog li ntawd, nws yuav tsum tau kuaj xyuas tsis tu ncua. Qhov ntsuas no cuam tshuam los ntawm ntau yam tseem ceeb. Ua ntej ntawm tag nrho cov, qhov no yog cov muaj pes tsawg leeg thiab formulation ntawm antifreeze ntau lawm. Txhua lub chaw tsim khoom siv cov cuab yeej tshwj xeeb hauv kev tsim khoom ntawm nws cov tub yees.
Qhov thib ob tseem ceeb yog qhov kom muaj nuj nqis thiab cov khoom ntxiv. Cov Cheebtsam no txhim kho kev ua haujlwm ntawm cov tshuaj tiv thaiv kab mob thiab tiv thaiv kab mob thiab cov txheej txheem los ntawm kev hnav ntxov ntxov. Hauv cov txheej txheem tsim khoom, cov kws tshaj lij siv cov txheej txheem ntawm cov khoom ntxiv no. Lawv zoo sib npaug. Qee qhov ntawm lawv tsis sib xws thiab nyob ntawm qhov kev ua haujlwm ntawm cov khoom siv.
Qhov tseem ceeb kawg uas cuam tshuam rau qhov ntom ntawm cov tshuaj tiv thaiv kab mob yog cov nyiaj ntawm monoethylene glycol hauv nws. Tag nrho cov nta no cuam tshuam rau lub peev xwm kub thiab thermal conductivity. Yog tias qhov ceev ntawm cov tshuaj tiv thaiv kab mob hloov pauv, nws tuaj yeem ua rau muaj kev nyuaj siab.
Yuav ntsuas qhov ntom ntawm koj tus kheej li cas?
Xav txog yuav ua li cas txhawm rau txheeb xyuas qhov ntom ntawm cov tshuaj tiv thaiv kab mob, koj yuav tsum ua tib zoo mloog rau txoj hauv kev yooj yim tshaj plaws. Tshwj xeebcov cuab yeej pab ua kev ntsuas rau txhua yam kua. Cov cuab yeej no hu ua hydrometer. Nws yog ib qho yooj yim mus thov. Hauv qhov no, tsuas yog ua ob peb kauj ruam yooj yim xwb.
Pib qhib lub hau npog. Tom ntej no, koj yuav tsum nrhiav tau lub expansion tank, nyob rau hauv lub antifreeze nyob. Nws lub hau qhib. Lub hydrometer yuav siv qhov xav tau ntawm cov tshuaj tiv thaiv kab mob. Ua li no, lub pipette yog txo mus rau hauv lub tub yees thiab cov khoom yog kos rau hauv lub hwj. Lub ntab yuav tsum muaj kev sib npaug.
Ntawm qhov ntsuas hydrometer, nws yog qhov tsim nyog los ntsuas qhov concentration ntawm cov tshuaj tiv thaiv. Tom ntej no, cov txiaj ntsig tau muab piv nrog tus nqi nominal teev los ntawm cov chaw tsim khoom. Qee zaum, qhov ceev yuav qis dua lossis siab dua li tau hais tseg. Qhov no kuj tuaj yeem cuam tshuam los ntawm cov dej hauv cov tshuaj.
Measurement results
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Qhov ntsuas qhov ntom ntom yog cuam tshuam los ntawm cov dej siv los dilute cov tshuaj tiv thaiv kab mob hauv lub hoobkas lossis hauv tsev. Nrog rau kev nce hauv nws cov ntsiab lus hauv cov tshuaj, qhov chaw khov ntawm cov khoom yuav siab dua, thiab cov yam ntxwv txias txias deteriorate nyob rau lub caij ntuj sov.
Yog tias qhov ntom ntawm cov khoom thaum ntsuas qis dhau, nws txhais tau tias cov tshuaj tiv thaiv kab mob muaj cov dej ntau. Nyob rau tib lub sij hawm, kev khiav hauj lwm kub ntau rau antifreeze nqaim. Nov yog ib qho kev tsis zoo.
Kev nce siab qhia tau tias txo qis hauv cov khoom cua txias thiab lubrication ntawm cov tshuab. Vim li no, lawv hnav sai sai. Yog li ntawd, nws yog ib qho tsim nyog los sib piv tus nqi nominal ceev tshaj tawm ntawm lub pob nrog kev nyeem ntawm hydrometer. Yog tias tsim nyog, nws raug kho.
Tus nqi qis
Ib hom khoom nrov tshaj plaws ntawm cov khoom nthuav tawm yog tshuaj tiv thaiv kab mob A-40 lossis A-40M. Cov tub yees no yog siv nyob rau hauv ib qho chaw sov so, qhov twg qhov kub ntawm lub caij ntuj no tsis poob qis dua -38 ° C. Nws yog dav ntseeg ntawm cov neeg tsav tsheb hauv peb lub teb chaws tias qhov ntom ntawm A-40 antifreeze yog 1.075 g / cm³. Nyob rau tib lub sijhawm, qhov sib tov muaj li 44% dej thiab 56% ethylene glycol (lossis siab dua).
Qhov ntsuas qhov ceev yog nyob ntawm qhov ntsuas kub ntawm qhov ntsuas tau ua. Cov qauv tsim qhov tso cai ntawm tus nqi no ntawm qib 1.065-1.085 g / cm³. Nyob rau tib lub sijhawm, ambient kub yuav tsum nyob rau theem ntawm +20 ° C.
Yog tias tus lej tau txais thaum lub sijhawm ntsuas tsis sib haum rau qhov ntsuas no, nws tuaj yeem ntsuas tau. Ua li no, me ntsis qub antifreeze yog drained thiab ob qho tib si dej los yog antifreeze concentrate yog ntxiv rau kev sib tov.
Lub neej
Paub txog qhov ceev ntawm cov tshuaj tiv thaiv kab mob tam sim no cuam tshuam rau lub tsheb, nrog rau tus qauv tus nqi ntawm qhov ntsuas no yog dab tsi, koj tuaj yeem zam kev kho ntxov ntxov lossis kev tawg ntawm lub tsheb. Antifreeze hnav tawm lub sijhawm. Nws lub neej kev pab cuam nyob ntawm qhov zoo ntawm cov tshuaj tiv thaiv nws tus kheej thiab lub mileage ntawm lub tsheb.
Yog tias qhov sib tov sib xyaw tsawg, muaj ntau ntaudej. Nws impairs cov nyhuv ntawm additives thiab provokes lub tsim ntawm corrosion. Qhov no ua rau kev puas tsuaj sai ntawm qhov chaw ntawm cov txheej txheem. Nyob rau hauv cov ntaub ntawv no, cov kua tau txais ib tug rusty tint. Txawm hais tias muaj hnub nyoog li cas los xij, nws yuav tsum tau hloov tam sim nrog cov tshuaj tiv thaiv kab mob tshiab.
Yuav ua li cas hloov tshuaj tiv thaiv kab mob
yog tias koj tau ntsuas cov tshuaj tiv thaiv kab mob, ntsuas nws cov yam ntxwv tau los hloov cov tshuaj no, cov txheej txheem tshwj xeeb yuav tsum tau nqa tawm. Lub cav yog sov li 5 feeb. Lub rhaub dej kub hauv cov neeg caij tsheb yuav tsum qhib. Tom qab lub cev muaj zog nres, lub qub antifreeze yog drained, thiab cov dej huv yog poured es tsis txhob. Koj tuaj yeem siv cov tshuaj ntxuav tes tshwj xeeb rau qhov no. Nws yog siv raws li cov chaw tsim khoom cov lus qhia.
Los ntawm cov ntsaws ntsaws, uas nyob hauv lub tshuab hluav taws xob, cov dej raug tshem tawm ntawm qhov system. Ntxuav yog ua kom txog thaum cov kua ntshiab. Tom qab ntawd, koj tuaj yeem sau cov tshuaj tiv thaiv kab mob tshiab.
Tau kawm seb qhov ntom ntawm cov tshuaj tiv thaiv kab mob yog dab tsi, koj tuaj yeem nkag siab qhov tseem ceeb ntawm kev ntsuas nws. Qhov ntsuas no yuav tso cai rau koj los ntsuas qhov kev ua haujlwm raug ntawm tag nrho cov kab ke thiab tiv thaiv nws txoj kev tawg.
