Yuav Ua Li Cas Xaiv Qhob Antifreeze Tsim Nyog?
Dec 26, 2024
01. Yuav ua li cas xaiv txoj cai Antifreeze Raws li Ambient Kub:
Feem ntau, thaum txhua hnub kub hloov pauv ntawm -5 degree thiab 5 degree, cov neeg ua haujlwm muaj zog thaum ntxov lossis cov dej txo qis thaum ntxov tuaj yeem siv tau. Yog tias qhov ntsuas kub txhua hnub nce mus txog lossis poob qis dua -10 degree, antifreeze nrog qhov ntsuas kub ntawm -5 degree yuav tsum tau siv. Yog tias qhov ntsuas kub txhua hnub yog -15 degree lossis -20 degree, antifreeze nrog qhov ntsuas kub ntawm -10 degree thiab -15 degree yuav tsum tau siv, raws li.
02. Lub luag haujlwm ntawm Antifreeze:
Antifreeze yog ib yam khoom uas tso cai rau cov pob zeb ua kom tawv nqaij ntawm qhov kub thiab txias yam tsis tas yuav tsum tau cua sov, thiab nws thiaj li ua tau zoo ib yam li cov pob zeb kho ntawm qhov kub thiab txias. Lub luag haujlwm tseem ceeb ntawm antifreeze yog kom muaj zog thaum ntxov thiab tiv thaiv kev puas tsuaj rau pob zeb.
03. Cov Cheebtsam Ntawm Kev Tiv Thaiv Kev Tiv Thaiv:
Antifreeze Cheebtsam:
Feem ntau, cov no suav nrog sodium chloride, calcium chloride, sodium nitrite, sodium nitrate, calcium nitrate, potassium nitrate, sodium thiosulfate, sodium acetate, urea, ammonia dej, methanol, thiab lwm yam. cement hydration mus txuas ntxiv txawm tias qhov kub tsis zoo.
Thaum Ntxov-Lub Zog Cheeb Tsam:
Cov khoom siv thaum ntxov muaj zog muaj xws li sodium chloride, calcium chloride, calcium nitrate, sodium nitrite, triethanolamine, sodium thiosulfate, sodium sulfate, thiab lwm yam. Cov khoom no tsuas yog ua kom lub zog thaum ntxov ntawm cov pob zeb, tiv thaiv kev nthuav dav los ntawm dej khov, thiab txo qhov chaw khov, cia cov pob zeb ncav cuag lossis tshaj nws lub zog tseem ceeb ua ntej khov.
Dej-txo cov khoom xyaw:
Feem ntau, cov khoom xws li lignosulfonate calcium, sodium lignosulfonate, naphthalene-based high-performance water reducers, melamine, amino sulfonates, thee tar-based water reducers yog siv. Lawv lub luag haujlwm tseem ceeb suav nrog:
(1) Txo cov dej sib xyaw, ua kom cov dej ntws tawm ntawm cov pores, ua kom cov concentration ntawm cov tshuaj tiv thaiv kab mob hauv cov pores, thiab txo qhov chaw khov;
(2) Txo cov dej khov rau hauv cov pob zeb thiab ua kom cov dej khov ua kom zoo thiab sib npaug sib npaug kom txo tau kev puas tsuaj ntawm cov pob zeb;
(3) Txhim kho kev ua haujlwm ntawm cov pob zeb sib xyaw tshiab thiab ua kom lub zog thiab ua haujlwm ntawm cov pob zeb tawv tawv.
Air-Entraining Cheebtsam:
Cov khoom siv hauv huab cua muaj xws li rosin-raws li polymers, saponin-based water reducers, lignosulfonate calcium, sodium lignosulfonate, anthraquinone-based water reducers, thiab lwm yam. Cov khoom no feem ntau ua haujlwm los ntawm kev qhia txog qhov tsim nyog ntawm kaw microbubbles rau hauv pob zeb kom txo cov dej khov. expansion stress.
Cov neeg nqa khoom:
Cov khoom siv xws li cov tshauv ya, cov xuab zeb hauv av zoo, thiab cov hmoov cib feem ntau yog siv. Lawv lub luag haujlwm tseem ceeb suav nrog:
(1) Ua kom yooj yim rau kev sib ntxiv thiab sib cais ntawm cov kua lossis cov kab sib txuas;
(2) Tiv thaiv kom tsis txhob ya raws thiab clumping;
(3) Ua kom cov additive yooj yim rau kev sib xyaw.
04. Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kab Mob thiab Kev Kho Mob:
Tam sim no, cov khoom siv tshuaj tua kab mob hauv tsev feem ntau ua haujlwm nyob rau hauv qhov kub ntawm 0 degree rau -20 degree . Rau qhov ntsuas kub qis dua, lwm yam kev ntsuas kev tsim kho lub caij ntuj no xws li cov chaw nkaum cua sov thiab cov txheej txheem kev tuav cov cua sov yuav tsum tau txais. Thaum siv cov yeeb yaj kiab yas, ob lub hnab straw, lossis lwm yam kev hloov kho, cov lus qhia hauv qab no yuav tsum ua raws li:
Thaum qhov kub thiab txias txhua hnub hloov pauv ntawm -5 degree thiab 5 degree, yuav tsum tau siv cov tshuaj tiv thaiv thaum ntxov lossis cov dej txo qis thaum ntxov.
Yog hais tias qhov ntsuas kub txhua hnub yog -10 degree, antifreeze nrog qhov ntsuas kub ntawm -5 degree yuav tsum tau siv.
Yog hais tias qhov ntsuas kub txhua hnub yog -15 degree, antifreeze nrog qhov ntsuas kub ntawm -10 degree yuav tsum tau siv.
Yog hais tias qhov ntsuas kub txhua hnub yog -20 degree, antifreeze nrog qhov ntsuas kub ntawm -15 degree yuav tsum tau siv.
05. Kev faib tawm ntawm Antifreeze:
Los ntawm Negative Temperature Curing Temperature:
Antifreeze tau muab faib ua peb hom raws li qhov kub thiab txias: -5 degree , -10 degree , thiab -15 degree . Tam sim no tsis muaj cov qauv hauv Suav teb rau cov khoom siv tshuaj tiv thaiv kab mob uas tsim los rau qhov kub thiab txias qis dua -20 degree .
Los ntawm Composition:
(1) Chloride-based Antifreeze:Hom tshuaj tiv thaiv kab mob no muaj cov tshuaj chloride ntsev (xws li calcium chloride, sodium chloride) los yog feem ntau yog raws li cov tshuaj chloride ntsev tov nrog lwm cov tshuaj tiv thaiv thaum ntxov, cov tshuaj tua kab mob, cov dej txo, thiab lwm yam.
(2) Chloride-Based Rust-Inhibiting Antifreeze:Cov tshuaj tiv thaiv kab mob no muaj cov tshuaj chloride ntsev ua ke nrog cov tshuaj tiv thaiv xeb (xws li sodium nitrite), los yog sib xyaw ntawm cov tshuaj chloride ntsev, xeb inhibitors, cov tshuaj tiv thaiv thaum ntxov, cov tshuaj tiv thaiv huab cua, thiab cov dej txo.
(3) Tsis-Chloride Antifreeze:Hom no siv cov ntaub ntawv tsis muaj chloride xws li sodium nitrite, sodium acetate, lossis urea ua cov khoom xyaw tseem ceeb, ua ke nrog cov tshuaj tsis muaj tshuaj chloride thaum ntxov, cov neeg ua haujlwm huab cua, cov dej txo, thiab lwm yam.