Nres dej "Neva". Nkag siab txog cov kev txwv

Neva brake kua xim yog dab tsi?

Organoleptic indicators, As txiav txim seb qhov haum ntawm cov kua nres rau kev siv muaj xws li:

• chromaticity;
• tsis muaj mechanical sediment;
• tsis sib cais thaum lub sij hawm ntev cia.

Nyob rau tib lub sijhawm, cov xim ntsuas tsis yog qhov kev txiav txim siab, tab sis tsuas yog qhia txog cov ntsiab lus ntawm cov khoom ntxiv uas tau nkag rau hauv cov dej nres txhawm rau txhawm rau txhim kho nws lub peev xwm lubricating thiab txias, muaj peev xwm oxidation thiab acid naj npawb stability. Yog li ntawd, Neva yuav tsum tau muas hauv pob tshab ntim uas ua tau raws li qhov yuav tsum tau ua ntawm GOST 1510-76, txawm tias qhov no cuam tshuam tsis zoo rau tus nqi ntawm cov khoom.

Raws li cov specification TU 6-09-550-73, Neva nres kua (nrog rau nws cov kev hloov kho Neva-M) yuav tsum muaj ib tug nplua nuj xim daj nrog muaj peev xwm ntawm me ntsis opalescence (nce lub teeb tawg ntawm qhov kub thiab txias mus txog qhov tseem ceeb). Cov xim ntawm cov kua uas twb siv lawm yog ib qho tsaus me ntsis.

Txhua qhov sib txawv ntawm cov xim yog txuam nrog kev nce siab ntawm cov thickeners thiab cov tshuaj tiv thaiv corrosion rau cov khoom tseem ceeb - ethyl carbitol thiab boric acid esters. "Neva" ntawm cov xim sib txawv yog tsis pom zoo rau siv nyob rau hauv qis ambient kub, vim hais tias muaj zog viscosity ua rau ib tug ntse nce nyob rau hauv lub zog ntawm nias lub nres pedal, thiab rau cov tsheb uas nruab nrog ABS, feem ntau yuav ua rau ib tug tsis ua hauj lwm ntawm lub system. .

Nta

Neva universal brake fluid yog tsim nyob rau hauv ib lub sij hawm rau kev siv nyob rau hauv domestic neeg nrog caij tsheb xws li Moskvich thiab Zhiguli, thiab yog li ntawd nws yog tag nrho sib xws nrog xws li brakes li Tom thiab Rosa. Nws lub cev thiab mechanical zog yog raws li nram no:

1. Qhov ntsuas kub ntawm kev siv tswv yim - ± 50⁰C.
2. Thawj qhov kub hnyiab - 195⁰C.
3. Kinematic viscosity, cSt, ntawm qhov kub txog li 50⁰C - tsis ntau tshaj 6,2.
4. Kinematic viscosity, cSt, ntawm kub txog -40⁰C - tsis ntau tshaj 1430.
5. Corrosive kev ua rau lwm yam hlau yog negligible.
6. Qhov kub ntawm qhov pib ntawm thickening yog -50⁰C.
7. Kub kub hloov tom qab lub sij hawm ntev cia - ± 3⁰C.
8. Flash point - 94⁰C.
9. Volumetric o ntawm cov roj hmab qhov chaw ntawm qhov kub txog li 120⁰C, tsis ntau tshaj 3%.

Me ntsis corrosivity tsuas yog ua tau yog tias cov dej nres no nyob rau hauv kev sib cuag nrog txhuas qhov chaw ntev.

Daim ntawv thov nta

Neva thiab Neva M yog nyob rau hauv chav kawm DOT-3. Raws li tus txheej txheem thoob ntiaj teb, qhov sib txawv ntawm qhov tso cai rau cov dej "qhuav" thiab "ntub" ntawm chav kawm no yog 205, feem.⁰C thiab 140⁰C. Tsis tas li ntawd, nrog kev khaws cia tsis tau kaw, kev nqus dej txhua xyoo txog li 2 feem pua ​​​​ntawm nws qhov ntim tau tso cai. Yog li, cov dej noo ntau dhau ua rau corrosion hauv lub tsheb nres, uas tuaj yeem ua rau muaj teeb meem xws li fumes thaiv lossis pedal tsis ua haujlwm.

DOT-3 thiab DOT-4 cov dej nres yog sib pauv tau vim lawv muaj lub hauv paus zoo. Nws yuav tsum tau muab sau tseg tias ib tug xov tooj ntawm manufacturers ntawm Neva thiab nws cov analogues (tshwj xeeb, Neva-super, uas yog tsim los ntawm Shaumyan Plant OJSC, St. Petersburg) tshaj tawm kev siv ntawm polyalkylethylene glycol raws li lub ntsiab ntawm cov muaj pes tsawg leeg. Txawm li cas los xij, cov khoom siv tshuaj lom neeg ntawm ethyl carbitol thiab polyalkylethylene glycol zoo sib xws, thiab yog li tsis muaj laj thawj yuav tsum tsis txhob sib xyaw Neva los ntawm cov tuam txhab sib txawv.

Ib qho tseem ceeb ntawm kev ua haujlwm ntawm Neva brake kua yog nws cov toxicity, uas yuav tsum tau coj mus rau hauv tus account thaum soj ntsuam kev nyab xeeb kev cai thaum siv.

Tus nqi ntawm cov dej nres "Neva" thiab nws cov analogues nyob ntawm nws cov ntim:

• Nyob rau hauv lub ntim ntawm 455 ml - los ntawm 75 ... 90 rubles.
• Nyob rau hauv lub ntim ntawm 910 ml - los ntawm 160 ... 200 rubles.

Vim li cas cov dej brake ua rau dub?