Nres dej "Rosa". Performance indicators, As

Kev xav tau

Rosa brake fluid belongs rau DOT-4 pawg thiab tau pom zoo siv rau txhua lub tsheb, suav nrog cov khoom siv nrog ABS. Nws muaj qhov kub siab dua li DOT 3 thiab tsis nqus dej sai sai. DOT 4 thiab DOT 3 tuaj yeem hloov pauv tau, tab sis lawv qhov kev sib raug zoo yog txwv. Yog li ntawd, nws yog qhov zoo tshaj plaws kom tsis txhob ntxiv DOT 3 kua rau hauv lub cev uas twb tau siv DOT 4. DOT 4 brake kua yog suav tias yog cov dej nyiam rau kev tsheb khiav hauv nroog nrog rau kev siv kev kub ceev.

Rau kev ua haujlwm ntawm lub tshuab nres ntawm lub tsheb, qhov kub thiab txias thaum siv Rosa fluids ntawm DOT 4 chav kawm (tseem siv rau cov dej nres zoo sib xws Neva, Tom) yuav tsum ua raws li:

• Rau "qhuav" - tsis ntau tshaj 230⁰C;
• Rau "ntub" - tsis ntau tshaj 155⁰C.

Lo lus "qhuav" yog hais txog cov dej nres uas nyuam qhuav tau ntim los ntawm lub Hoobkas ntim, lo lus "ntub" txhais tau hais tias nws twb tau siv hauv lub tsheb rau qee lub sijhawm thiab tau nqus dej noo.

Cov xwm txheej tseem ceeb rau kev ua haujlwm ntawm cov kua dej nres yog:

1. Siab kub taw tes.
2. Tsawg qhov chaw khov.
3. Yam tsawg kawg nkaus chemical ua rau cov xim thiab cov kua roj vanish npog.
4. Yam tsawg kawg nkaus hygroscopicity.

Qhov taw qhia ntawm cov dej nres "Rosa"

Cov txheej txheem kev tswj hwm kev tsim khoom thiab kev siv cov dej nres yog cov qauv thoob ntiaj teb FMVSS No. 116 thiab ISO 4925, nrog rau Lavxias TU 2451-011-48318378-2004.

Rosa brake kua yuav tsum ua raws li cov hauv qab no:

1. Kev sib raug zoo thiab organoleptics - cov kua pob tshab, muaj ntau qhov ntxoov ntxoo ntawm lub teeb xim av, thaum tsis muaj cov khoom siv txawv teb chaws raug tshem tawm lossis cov av hauv lub teeb.
2. Qhov ceev ntawm chav tsev kub - 1,02 ... 1,07 g / mm³.
3. Viscosity - 1400 ... 1800 hli²/ s (ntawm qhov kub thiab txias 40 ± 1⁰C) thiab tsis pub tsawg tshaj 2 hli²/ s - ntawm qhov kub txog li 100⁰C.
4. Kub txwv kev ua haujlwm - ± 50⁰C.
5. Qhov kub ntawm qhov pib ntawm crystallization - -50⁰C.
6. Boiling point - tsis qis dua 230⁰C.
7. pH Performance index yog 7,5 ... 11,5.

Rosa brake kua muaj lubricating thiab txias zog thiab zoo thermal stability. Nws cov tshuaj muaj pes tsawg leeg muaj xws li ethylene glycol, hluavtaws additives, corrosion inhibitors, nrog rau cov khoom uas ua rau qeeb crystallization txheej txheem. Yog li, nyob rau hauv lub chav kawm ntawm nws daim ntawv thov, cov kua Rosa yuav tsum tsis txhob muaj ib tug corrosive nyhuv rau cov hlau qhov chaw ntawm lub tsheb, thiab kuj yog chemically nruab nrab rau cov roj hmab Cheebtsam ntawm lub tsheb nres systems.

Thaum siv cov dej nres, qhib lub thawv nrog kev saib xyuas, vim tias qhov nqus ntawm ethylene glycol vapors ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv.

Xyuas

Raws li ib qho piv txwv systematizing, peb yuav muab cov txiaj ntsig ntawm kev sim ntsuas uas tau ua nrog ntau hom kev sib tsoo ntawm cov khoom siv hauv tsev thiab txawv teb chaws (qhov twg lub ntiaj teb tus thawj coj hauv kev tsim cov kua dej nres yog Liqui Moly lub cim lag luam). Cov kev ntsuam xyuas tau ua tiav txhawm rau txhawm rau txheeb xyuas lub sijhawm ntawm cov kua dej yam tsis muaj kev hloov pauv, thiab qhov kev ntsuas zoo yog qhov tseeb ntawm qhov kub ntawm cov dej siv nres, qhov feem pua ​​​​ntawm cov dej hauv cov muaj pes tsawg leeg thiab qib ntawm kev khaws cia ntawm nws cov ntsuas kinematic viscosity.

Cov txiaj ntsig tau pom tias feem ntau cov tuam txhab lag luam hauv tebchaws tsis tuaj yeem ua kom lub sijhawm ntev ntawm Rosa DOT 4 nres cov kua dej. Tsis tas li ntawd, nyob rau hauv feem ntau ntawm cov qauv kawm, thawj viscosity hloov mus rau overestimated.

Tus nqi ntawm cov dej nres ntawm Rosa hom, nyob ntawm qhov chaw tsim khoom, yog los ntawm 150 rubles. rau 1 liter

Dab tsi yog qhov zoo dua los sau cov dej nres thiab dab tsi tsis tsim nyog.