Antifreeze ceev faj

Yuav ua li cas paub qhov txawv ntawm cov khoom tiag thiab fake
Yog li yuav ua li cas thiaj paub qhov txawv ntawm lawv? Feem ntau yog los ntawm cov nram qab no: Ua ntej, nqe: Hais txog tus nqi, yog tias qhov kev siv qhov chaw khov kho yog -25 degree, tus nqi qis dua 5 yuan / kg, nws tsis yog qhov tseeb; Qhov thib ob, tsis hnov ​​tsw, yog tias muaj txhua yam pungent thiab tsw ntxhiab tsw, nws yuav tsum yog cuav, thiab qhov tseeb tsis muaj ntxhiab tsw ntau; Thib peb, xav tias: yog tias nws tsis yog lubricated thiab volatile (ceeb toom: nws yog nruj me ntsis txwv tsis pub saj nws nrog koj lub qhov ncauj! Cov additives ntawm antifreeze muaj carcinogens) nws yog ib tug fake antifreeze uas yog ib qho yooj yim rau boil nrog tsawg boiling point cawv; Yog hais tias muaj cov khoom dawb ntawm lub qhov ncauj ntawm lub thawv ntim, nws yog hnyav rau nqa los ntawm tes, xav tias astringent heev, thiab tsis muaj ntxhiab tsw tshwj xeeb, nws yog ib qho tshuaj tiv thaiv cuav ua tiav nrog cov ntsev los yog brine; Plaub, turbidity: tsis muaj teeb meem dab tsi xim ntawm cov khoom yog, nws yuav tsum tuav ib tug tej degree ntawm pob tshab. Cov khoom turbid tsis yog cov khoom zoo. Thib tsib, saib qhov fluidity. Piv nrog rau cov dej ntshiab, viscosity ntawm zoo antifreeze yog me ntsis siab dua.
Kev yuav cov cai
(1) Xaiv lub freezing point ntawm lub antifreeze raws li ambient kub tej yam kev mob. Lub freezing point ntawm antifreeze yog ib qho tseem ceeb tshaj plaws ntsuas ntawm lub antifreeze thiab ib tug tseem ceeb mob rau seb lub antifreeze yuav tiv thaiv freezing. Nyob rau hauv dav dav, lub freezing point ntawm lub antifreeze yuav tsum tau xaiv ntawm qhov qis tshaj lub caij ntuj no kub ntawm lub zos ib puag ncig, nyob ib ncig ntawm -10 degree -15 degree . Yog tias qhov ntsuas kub hauv zos qis tshaj yog -30 degree, qhov chaw khov ntawm cov tshuaj tiv thaiv yuav tsum tau xaiv hauv qab no -45 degree . Yog tias koj xav xaiv ethylene glycol niam cawv rau kev npaj, koj tuaj yeem npaj cov tshuaj tiv thaiv kab mob nrog ethylene glycol concentration ntawm 59%, qhov chaw khov ntawm -50 degree , thiab qhov ntom ntawm 1.0786mg / cm3.
(2) Xaiv antifreeze raws li lub tsheb sib txawv. Feem ntau, cov tsheb thauj khoom, tsheb thauj khoom hauv tsev, thiab cov tsheb loj thiab nruab nrab yuav tsum siv cov tshuaj tiv thaiv kab mob mus tas li (2-3 xyoo), thaum cov tsheb zoo tib yam tuaj yeem siv cov tshuaj tiv thaiv kab mob ncaj qha, thiab cov dej muag muag tuaj yeem siv rau hauv lub caij ntuj sov.
(3) Xaiv cov tshuaj tiv thaiv kab mob raws li tus naj npawb ntawm cov tsheb thiab cov qib ntawm cov concentration. Cov chav tsev thiab cov chaw ua haujlwm uas muaj ntau lub tsheb thiab cov tsheb sib xyaw ua ke tuaj yeem xaiv cov khoom ntim me me los tiv thaiv cov cawv niam. Qhov no antifreeze niam cawv muaj kev ua haujlwm ruaj khov. Vim nws yog me me-pob, nws yooj yim rau thauj thiab khaws cia. Nyob rau tib lub sijhawm, nws tuaj yeem hloov kho tau yooj yim raws li qhov sib txawv ib puag ncig thiab kev ua haujlwm sib txawv kom ua tiav lub hom phiaj ntawm kev txuag thiab kev ua tau zoo. Yog tias muaj ob peb lub tsheb los yog tawg, koj tuaj yeem xaiv cov khoom siv tiv thaiv ncaj qha.
(4) Feem ntau, koj yuav tsum xaiv cov tshuaj tiv thaiv kab mob uas muaj kev tiv thaiv xeb, tiv thaiv corrosion thiab descaling peev xwm. Qhov tseem ceeb tshaj plaws ntawm antifreeze yog anti-xeb. Yog li ntawd, nws raug nquahu kom xaiv cov khoom lag luam npe. Cov khoom no muaj cov tshuaj tua kab mob, cov tshuaj tiv thaiv corrosion, cov tshuaj tiv thaiv kab mob thiab cov tshuaj ntxuav, thiab cov khoom lag luam zoo tau lav.
(5) Xaiv ib qho tshuaj tiv thaiv kab mob uas phim cov roj hmab sealing conduit. Antifreeze yuav tsum tsis txhob muaj kev phiv xws li o thiab yaig ntawm cov roj hmab sealing conduit.