Muaj ntau yam tshuaj tiv thaiv kab mob sib txawv. Lawv siv nyob rau hauv ntau lub tshuab, yog li lawv yuav muaj cov khoom tshwj xeeb. Lawv tiv thaiv cov kua los ntawm qhov kub sai sai, thiab tseem muaj peev xwm tsis khov ntawm qhov kub txaus txaus.
Cov khoom ntxiv uas ua rau cov tub yees lossis cov kua cua sov txiav txim siab lawv lub neej kev pabcuam. Kev siv cov khoom zoo li no kuj tseem ceeb heev. Ua li no, koj yuav tsum paub yuav ua li cas dilute antifreeze (ntse). Nws muaj qee yam txheej txheem uas yuav tsum tau ua raws li tus txheej txheem ntawm kev ua cov haujlwm no. Tom qab tag nrho, antifreeze concentrate yog tsim los diluted ua ntej siv.
yam ntxwv dav dav
Antifreezes ntawm ntau hom yog siv nyob rau hauv ntau powertrains thiab systems. Cov khoom zoo li no tuaj yeem tiv thaiv lub cev los ntawm overheating lossis khov. Lawv yog siv nyob rau hauv kev lag luam automotive, hauv cov cua sov, cua txias thiab lwm yamkhoom.
Ntau lub tuam txhab tsim tshuaj tua kab mob hauv daim ntawv ntawm cov concentrates uas yuav tsum tau diluted kom zoo. Qhov no yuav txo qhov kub ntawm crystallization ntawm cov khoom. Yog li ntawd, koj yuav tsum paub yuav ua li cas kom dilute lub antifreeze concentrate ua ntej siv cov tshuaj.
Cov kua dej feem ntau muaj ethylene lossis propylene glycol. Cov neeg tsim khoom kuj tseem ntxiv ntau yam khoom ntxiv rau cov muaj pes tsawg leeg uas txhim kho kev ua haujlwm ntawm cov chav nyob thiab tiv thaiv lawv cov hnav. Lawv yuav tiv thaiv lub cev los ntawm corrosion thiab ua rau kom hnav tsis kam ntawm sab hauv.
Yuav tsum tau dilute antifreeze
Muaj ob hom tshuaj tiv thaiv kab mob ntawm kev muag. Nws tuaj yeem yog cov concentrate, lossis cov khoom npaj rau kev siv. Qhov yuav tsum tau dilute antifreeze nrog dej yog nyob rau hauv nws tag nrho cov khoom cua txias.
Yog tias cov tub yees siv rau lub caij kub, cov dej los ntawm qhov sib tov yuav evaporate sai dua, tib lub concentrate yuav nyob hauv lub cev. Cov ethylene glycol suav nrog hauv nws yuav cuam tshuam rau cov ntsiab lus ntawm lub cev.
Combustion roj hauv lub cav tshwm sim ntawm qhov kub siab tshaj 2100 degrees. Yog tsis tau yuam kom txias, cov khoom yuav kub txaus kom dhau cov roj qhov muag. Txhua qhov chaw mating yuav hnav sai heev.
Txawm li cas los xij, cov lus nug ntawm yuav ua li cas dilute cov tshuaj tiv thaiv kab mob (ntseeg) yuav tsum raug daws raws li cov chaw tsim khoom cov lus qhia. muaj zog heevcua txias kuj tuaj yeem ua mob rau lub cev. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tswj hwm qhov kub ntawm 85-95 degrees.
Rau cov tshuab cua sov nws tseem ceeb heev kom tsis txhob dhau qhov kev txwv ntawm vaporization. Yog li ntawd, kev tsim kom muaj qhov ntsuas kub siab tshaj plaws rau cov khoom no kuj yog nyob rau theem ntawm 95 degrees.
Chilling action
Yuav kom dilute antifreeze kom zoo rau lub tsheb cav lossis cua sov, nws yuav tsum tau coj mus rau hauv tus account qhov qis qis ntawm crystallization kub ntawm cov khoom.
Kom cov kua tsis khov ntawm qhov kub ntawm -30 degrees, ntau yam khoom ntawm hom no muaj ethylene glycol. Thaum tov nrog dej, koj tuaj yeem ua tiav qhov taw qhia ntawm qhov pib ntawm crystallization ntawm -36 degrees.
Yog tias qhov kub thiab txias qis dhau, cov kua yuav ua kua thiab yuav tsis ua rau lub cav lossis lub tshuab hluav taws xob puas. Yuav kom nkag siab yuav ua li cas dilute antifreeze rau cua sov, koj yuav tsum xa mus rau cov lus qhia ntawm lub pob. Yog tias muaj xwm txheej ceev ntawm cov cua sov tshwm sim hauv ib lub tsev ntiag tug, cov kua hauv cov cua sov yuav tsis tso cai rau cov kav dej tawg los ntawm qhov kub thiab txias.
Boiling antifreeze
Dhau li ntawm cov txiaj ntsig txias, cov kua tuaj yeem tiv thaiv vaporization ntau dhau. Ntawm no nws tseem ceeb heev kom nyeem cov lus qhia yuav ua li cas dilute antifreeze kom raug.
Yog tias lub kaw lus overheats, nws txoj haujlwm ntxiv yuav ua tsis tau. Nws yog qhov ua tau tias txawm tias tom qab txias, nws cov ntsiab lus yuav tsis tuaj yeem ua haujlwm raug vim yog kev puas tsuaj loj. Yog li ntawd, rauTxhawm rau tiv thaiv cov xwm txheej zoo li no, koj yuav tsum nkag siab tias yuav ua li cas kom dilute antifreeze kom zoo rau lub cav lossis cua sov.
Cov khoom ntxiv thiab cov khoom muaj nyob rau hauv cov kua ua kua ua rau lub qhov kub hnyiab ntau dua li cov dej. Qhov no tau lees paub tias cov tshuaj tiv thaiv kab mob yuav tsis kub sai sai thaum lub caij ntuj sov thiab cov cua sov yuav tsis dhau lub caij ntuj no.
Ntau hom tshuaj tiv thaiv kab mob thiab nws cov chaw tsim khoom
Yuav kom paub yuav ua li cas kom dilute cov tshuaj tiv thaiv kab mob kom zoo (tseem ceeb) ntawm cov hom xws li Kostrol, Plhaub, Tosol-Sintez thiab lwm yam, koj yuav tsum tau xyuam xim rau cov chav dej.
Yog tias nws yog G11 antifreeze, nws cov xim yuav ntsuab, xiav, lub teeb ntsuab. Lub neej kev pabcuam ntawm cov khoom zoo li no tsis pub dhau 3 xyoos. Cov tshuaj cim G12, G12-plus muaj xim liab, txiv kab ntxwv, ntshav xim. Lawv tsis muaj silicates uas ua rau xeb tsim txheej txheem. Lawv cov additives nce lub neej kev pab cuam ntawm cov tshuaj mus txog 7 xyoo.
Chav G11 thiab G12 tsis tuaj yeem sib xyaw ua ke. Lawv muaj cov khoom xyaw sib txawv heev. Tsuas yog G12-plus antifreeze tuaj yeem muab ntxiv rau ob hom kev mloog zoo.
Cov tuam txhab nrov tshaj plaws, raws li kev tshuaj xyuas cov neeg siv khoom, niaj hnub no yog cov khoom lag luam xws li Mobil, ZIC, Plhaub, Tosol-Synthesis, Castrol. Antifreeze (concentrate), uas txhua tus neeg tsav tsheb yuav tsum paub yuav ua li cas dilute, yog qhov zoo tshaj plaws diluted nrog dej.
dej rau dilution
Rau diluting antifreeze, ob qho tib si mloog zoo thiab cov kua tiav, tsim nyogtshwj xeeb distilled dej. Nws yog tsis yooj yim sua rau cov hom phiaj no los siv nws cov khw muag tshuaj ntau yam. Thiab ntau tshaj li ntawd, koj yuav tsum tsis txhob siv dej los ntawm cov dej xa dej lossis dej, pas dej, qhov dej, thiab lwm yam.
yam tsis tsim nyog yuav muaj cov ntsev ntxhia. Cov tshuaj zoo li no yuav tsim cov nplai thaum ua haujlwm.
Kev txiav txim siab yuav ua li cas dilute antifreeze nrog dej, yog tias tsis muaj kua tshwj xeeb, koj yuav tsum mus rau lwm txoj kev. Cov kais dej zoo tib yam yuav tsum tau muab rhaub tshaj qhov hluav taws kub li ib nrab teev. Qhov no yuav tshem tawm cov khoom uas cuam tshuam rau kev ua haujlwm ntawm lub kaw lus los ntawm nws.
Qee lub tuam txhab thov tias cov dej dawb yuav ua haujlwm rau lawv cov khoom. Qhov no yog ib qho yooj yim mus xyuas los ntawm pouring ib tug zoo xws li cov kua rau hauv lub antifreeze. Txheeb xyuas qhov tshwm sim tom qab 48 teev. Cloudy dej los yog sediment qhia tias yuav tsum tau siv distillate.
Kev xaiv ntawm qhov concentration
Thaum txiav txim siab yuav ua li cas rau dilute antifreeze rau cua sov tshuab, tsheb cav thiab lwm yam tshuab, koj yuav tsum xyuam xim rau qhov kub ntawm cov kua.
Regular concentrate muaj qhov khov ntawm -65 degrees. Hauv lub neej zoo tib yam, cov xwm txheej zoo li no tsis tshwm sim. Yog li ntawd, cov hauv qab no yuav tsum tau ua.
- Dilute cov concentrate nrog distillate hauv qhov sib piv 1: 1. Qhov no yuav ua rau kom kub crystallization rau -40 degrees. Qhov no txaus txawm rau lub caij ntuj no hnyav.
- Yog tias koj noj 2 litres tshuaj tiv thaiv kab mob thiab 3 liv dej, ces qhov chaw khovnce mus rau -30 degrees.
- Ib qho piv txwv 1: 2 yuav muab cov kua nrog crystallization ciam ntawm -20 degrees. Nyob ntawm huab cua latitude, ib qho ntawm peb txoj kev yuav tsum raug xaiv.
Tsis txhob dilute cov concentrate ntau dhau. Qhov no yuav txo cov nyhuv ntawm cov additives thiab degrade qhov zoo ntawm cov kua.
cov lus qhia ib ntus
Txhawm rau nkag siab yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhav
Ua ntej, cov tshuaj tiv thaiv qub yuav tsum tau ntws tawm. Ua li no, unscrew lub radiator cap thiab lub valve ntws los ntawm hauv qab no. Tom qab ntawd lub kaw lus yog yaug nrog dej distilled. Peb yuav tsum cia nws ua haujlwm me ntsis thiab tso dej pov tseg.
Tom qab cov kev hloov pauv saum toj no, ntxiv cov tshuaj tiv thaiv kab mob kom zoo rau lub cev. Txhawm rau ua qhov no, koj yuav tsum coj mus rau hauv tus account cov lus pom zoo uas tau teev tseg saum toj no. Thaum lub caij ntuj sov, yuav tsum muaj dej ntau. Tab sis nyob rau lub caij ntuj no, theem ntawm crystallization ntawm cov khoom no yuav tsum yog tsawg kawg -20 degrees.
Tau paub txog kev siv thev naus laus zis ntawm yuav ua li cas dilute antifreeze (ntse), hloov cov kua dej siv nrog ib qho tshiab yuav tsis nyuaj. Los ntawm kev ua raws li cov lus qhia saum toj no, koj tuaj yeem ua kom muaj kev ua haujlwm raug ntawm qhov system thiab nws lub neej ntev.
