Ruwan birki. Sakamakon gwaji mai ban tsoro
A cewar wani bincike da Cibiyar Kula da Motoci ta yi, huɗu cikin 4 na ruwan birki na DOT-XNUMX ba su cika wasu ka'idoji ba. Rashin ingancin ruwa yana ƙara tsayi, kuma a cikin matsanancin yanayi na iya hana motar gaba ɗaya ikon rage gudu.
Cibiyar Kimiyyar Kayan Aiki ta Cibiyar Sufuri ta Hanya ta gwada ingancin ruwan birki DOT-4 sananne a kasuwar Poland. Binciken yarda da ingancin ya ƙunshi shahararrun samfuran kera guda goma. Kwararrun ITS sun bincika, gami da ƙimar ma'aunin tafasa da danko, watau. sigogi waɗanda ke ƙayyade ingancin ruwa.
– Sakamakon gwajin ya nuna cewa ruwa hudu cikin goma ba su cika ka’idojin da aka kayyade ba. Ruwa hudu sun nuna cewa wurin tafasa ya yi ƙasa sosai, kuma biyu daga cikinsu sun kusan ƙafe a lokacin gwajin kuma ba su nuna juriya ga oxidation ba. A nasu yanayin, ramukan lalata suma sun bayyana akan kayan dakin gwaje-gwaje, ”in ji Eva Rostek, shugabar Cibiyar Binciken Kayan Aiki ta ITS.
A haƙiƙa, yin amfani da irin waɗannan ruwan birki (masu ƙima) na iya ƙara nisan nisan nisan tafiya kuma, a cikin matsanancin yanayi, ba zai yiwu abin hawa ya tsaya ba.
Duba kuma: Sabbin faranti
Ruwan birki yana rasa kaddarorinsa tare da shekaru, don haka masana'antun mota suna ba da shawarar maye gurbinsa aƙalla sau ɗaya kowace shekara biyu zuwa uku. Duk da haka, bincike a cikin 2014 ya nuna cewa kashi 22 cikin dari na Direbobin Poland ba su taɓa maye gurbinsa ba, kuma kashi 27 cikin ɗari sun yi. duba motocin, yana da hakkin ya canza nan take.
– Dole ne mu tuna cewa ruwan birki shine hygroscopic, watau. yana sha ruwa daga muhalli. Ƙarancin ruwa, mafi girman sigogin tafasa kuma mafi girman ingancin aikin. Wurin tafasar ruwan DOT-4 bai kamata ya zama ƙasa da 230 ° C ba, kuma ruwan DOT-5 kada ya zama ƙasa da 260 ° C, tunatar da Eva Rostek daga ITS.
Ingantattun birki tare da ruwa mai inganci a cikin tsarin sun kai ga cikakkiyar damar su cikin kusan daƙiƙa 0,2. A aikace, wannan yana nufin (idan motar da ke tafiya a 100 km / h tana tafiya tazarar 27 m / s) cewa birki ba ya tashi har sai mita 5 bayan an taka birki. Tare da ruwan da bai dace da sigogin da ake buƙata ba, nisan birki zai ƙaru har sau 7,5, kuma motar za ta fara raguwa a cikin mita 35 kawai daga lokacin da kuka danna fedalin birki!
Ingancin ruwan birki yana shafar amincin tuƙi kai tsaye, don haka lokacin zabar shi, bi shawarwarin masana'antun mota kuma saya marufi da aka rufe kawai.
Duba kuma: Renault Megane RS a cikin gwajin mu
