Ruwan birki "Neva". Fahimtar sigogi

Menene ruwan Neva birki?

Alamun Organoleptic waɗanda ke yin hukunci da dacewa da ruwan birki don amfani sun haɗa da:

• chromaticity;
• babu inji laka;
• rashin rabuwa a lokacin ajiyar lokaci mai tsawo.

A lokaci guda, index launi ba na wani hukunci yanayi, amma kawai nuna abun da ke ciki na Additives da aka gabatar a cikin birki ruwa domin inganta lubricating da sanyaya damar, hadawan abu da iskar shaka ikon da acid adadin kwanciyar hankali. Sabili da haka, Neva ya kamata a saya a cikin marufi na gaskiya wanda ya dace da bukatun GOST 1510-76, koda kuwa wannan yana da mummunar tasiri akan farashin samfurin.

Dangane da ƙayyadaddun TU 6-09-550-73, Ruwan birki na Neva (kazalika da gyare-gyaren Neva-M) yakamata ya sami launin rawaya mai wadataccen launi tare da yuwuwar ɗan ƙaramin haske (ƙara watsawar haske a yanayin zafi yana gabatowa mai mahimmanci). Launin ruwan da aka riga aka yi amfani da shi ya ɗan yi duhu.

Duk wani sabani a cikin launi yana da alaƙa da haɓakar haɓakar masu kauri da ƙari na anti-lalata zuwa manyan abubuwan haɗin gwiwa - ethyl carbitol da esters boric acid. "Neva" na launi daban-daban ba a ba da shawarar yin amfani da shi a ƙananan yanayin zafi ba, tun da ƙãra danko yana haifar da karuwa mai yawa a cikin ƙarfin latsa birki, kuma ga motoci sanye take da ABS, gabaɗaya na iya haifar da gazawar wannan tsarin. .

Fasali

An samar da ruwan birki na Neva na duniya lokaci guda don amfani da su a cikin motocin fasinja na gida irin su Moskvich da Zhiguli, don haka ya dace sosai da ruwan birki kamar Tom da Rosa. Halayensa na zahiri da na inji sune kamar haka:

1. Yanayin zafin jiki na amfani mai amfani - ± 50⁰C.
2. Tushen tafasar farko - 195⁰C.
3. Kinematic danko, cSt, a yanayin zafi har zuwa 50⁰C - ba fiye da 6,2.
4. Kinematic danko, cSt, a yanayin zafi har zuwa -40⁰C - ba fiye da 1430.
5. Lalacewar ayyuka ga wasu karafa ba ta da komai.
6. Kauri fara zazzabi - -50⁰C.
7. Canjin zafin jiki na tafasa bayan ajiyar lokaci mai tsawo - ± 3⁰C.
8. Fahimtar Flash - 94⁰C.
9. Ƙaƙƙarfan kumburin sassa na roba a yanayin zafi har zuwa 120⁰C, bai wuce 3% ba.

Ƙarƙashin lalata yana yiwuwa ne kawai idan wannan ruwan birki yana cikin hulɗa da sassan aluminum na dogon lokaci.

Aikace-aikacen fasali

Ruwan birki Neva da Neva M suna cikin ajin DOT-3. Dangane da ƙa'idodin ƙasa da ƙasa, karkatar da yanayin yanayin da aka yarda don "bushe" da "rigar" ruwa na wannan aji shine 205, bi da bi.⁰C da 140⁰C. Bugu da ƙari, tare da ajiyar da ba a rufe ba, ana ba da izinin shayar da ruwa na shekara-shekara har zuwa kashi 2 na girmansa. Don haka yawan danshi yana haifar da lalacewa a tsarin birki na abin hawa, wanda zai iya haifar da matsaloli kamar toshe hayaki ko gazawar feda.

DOT-3 da DOT-4 ruwan birki suna canzawa saboda suna da tushe guda ɗaya. Ya kamata a lura da cewa da dama masana'antun na Neva da analogues (musamman, Neva-super, wanda aka samar da Shaumyan Plant OJSC, St. Petersburg) bayyana yin amfani da polyalkylethylene glycol a matsayin babban bangaren na abun da ke ciki. Duk da haka, sinadarai na ethyl carbitol da polyalkylethylene glycol suna kusa, sabili da haka babu dalilin da zai hana hadawar Neva daga masana'antun daban-daban.

Wani muhimmin fasalin aiki na ruwan birki na Neva shine gubarsa, wanda yakamata a yi la'akari da shi lokacin kiyaye ƙa'idodin aminci lokacin amfani.

Farashin ruwan birki "Neva" da analogues ya dogara da marufi:

• A cikin kwantena na 455 ml - daga 75 ... 90 rubles.
• A cikin kwantena na 910 ml - daga 160 ... 200 rubles.

Me yasa ruwan birki ya zama baki?