Chinachitika ndi chiyani kwa izo? Antifreeze

Zili ngati mchere mumsewu wozizira, koma mkati mwa injini yanu.

Mukayatsa galimoto yanu m'nyengo yozizira, mawotchi amakina amatha kukhala ndi moyo. Mphamvu zophatikizana za ntchitozi zimatulutsa kutentha kwakukulu—kufikira madigiri 2800 Fahrenheit (F) mkati mwa pisitoni. Ndiye dikirani, ndi kutentha konseko, chifukwa chiyani mukufunikira chinthu chotchedwa "antifreeze"?

Chabwino, zinthu zomwe timazitcha antifreeze zimagwira ntchito kuteteza madzimadzi omwe amachititsa kuti injini yanu ikhale yozizira mokwanira kuti isadziwononge (mudzamvanso kuti "coolant"). Imazungulira nthawi zonse m'chipinda chanu cha injini, imanyamula kutentha kokwanira chifukwa cha kuyaka konseko ndikupita ku rediyeta komwe imazizidwa ndi mpweya wakunja. Kutentha kwina kumagwiritsidwanso ntchito kutenthetsa mpweya, kupangitsa mkati mwagalimoto yanu kukhala momasuka komanso momasuka. 

Ma injini akale amagalimoto amangogwiritsa ntchito madzi kuziziritsa zipinda zawo, koma H20 yakale yowoneka bwino sinali yothandiza kwambiri komanso idayambitsa mutu wambiri m'nyengo yozizira. Monga chitoliro chosatetezedwa usiku wozizira wachisanu, ngati radiator yanu yadzaza ndi madzi, imaundana ndikuphulika. Ndiye, mukamayamba injini, simudzakhala ndi zotsatira zoziziritsa mpaka madzi asungunuka, ndipo simungapeze chilichonse chikatuluka mumpata wanu watsopano wa radiator.  

Yankhani? Antifreeze. Ngakhale kuti dzina lake lopsided, madzimadzi ofunikirawa sikuti amangoteteza galimoto yanu ku nyengo yozizira. Imalepheretsanso rediyeta kuwira pamasiku otentha m'chilimwe chifukwa cha kuthekera kwake kutsitsa madzi oundana ndikukweza kuwira kwake.

Misewu Yozizira ndi Injini Zagalimoto: Zofanana Kwambiri Kuposa Mukuganiza

M'chilengedwe chake, madzi amaundana pa 32 F ndi kuwira pa 212 F. Tikayika mchere mumsewu chipale chofewa kapena chimphepo chamkuntho, mchere ndi madzi zimagwirizanitsa kupanga madzi atsopano (madzi amchere) ndi kuzizira kwa pafupifupi 20 F kutsika. . kuposa madzi oyera (mu sikelo yoyambirira ya Fahrenheit, 0 inali malo oundana amadzi a m'nyanja, 32 inali malo oundana amadzi abwino, koma izi zasinthidwa pazifukwa zina, tilibe nthawi yolowamo). Motero, mkuntho wa m’nyengo yachisanu ukabwera ndipo chipale chofeŵa kapena mvula yoziziritsa bwino ikuwomba msewu, madzi ndi mchere zimasakanikirana ndipo madzi amchere amadzimadziwo amatuluka bwinobwino. Komabe, mosiyana ndi misewu, injini yanu sidzapirira mlingo wokhazikika wa madzi amchere. Ichita dzimbiri msanga, ngati chitsulo chopanda kanthu m’mphepete mwa nyanja. 

Lowetsani ethylene glycol. Mofanana ndi mchere, umagwirizanitsa ndi madzi kupanga madzi atsopano. Kuposa mchere, madzi atsopanowa sangaundane mpaka kutentha kutsika kufika pa 30 F pansi pa ziro (62 F kutsika kuposa madzi) ndipo sangawira mpaka kugunda 275 F. Komanso, sikuwononga injini yanu. Kuphatikiza apo, imagwira ntchito ngati mafuta, kukulitsa moyo wa mpope wamadzi wagalimoto yanu. 

Sungani injini yanu mu "zone ya Goldilocks"

M’nyengo yofunda kapena paulendo wautali, injiniyo imatha kutentha kwambiri moti tinthu ting’onoting’ono toletsa kuzizira timasanduka nthunzi. M'kupita kwa nthawi, utsi wawung'ono uwu ukhoza kuchititsa kuti muzitsuka zoziziritsa pang'ono kuzungulira injini yanu, kutenthedwa, kenako chitsulo chopindika, chosuta pansi pa chivundikiro chomwe injini yanu idali.

Kuonetsetsa kuti injini yanu imakhala yowoneka bwino nthawi zonse - osatentha kwambiri komanso osazizira kwambiri - timawunika antifreeze yanu nthawi iliyonse mukabwera kudzasintha mafuta kapena ntchito ina iliyonse. Ngati ikufunika kulimbikitsidwa pang'ono, tidzakhala okondwa kuwonjezera. Ndipo popeza, monga chilichonse chomwe chimatenthetsa ndikuzizira, kutenthetsa ndi kuzizira, antifreeze imatha tsiku ndi tsiku, timalimbikitsa kutulutsa koziziritsa kokwanira pafupifupi zaka 3-5 zilizonse.

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