A wane zafin jiki man inji ke tafasa?
Filashin man inji
Bari mu fara la'akari da wannan batu daga mafi ƙarancin zafin jiki don tunani guda uku da aka jera a cikin sakin layi na farko kuma za mu faɗaɗa su cikin tsari mai hawa. Tunda a yanayin mai na mota, yana da wuya cewa zai yiwu a fahimta ta hanyar hankali wanne na iyakoki ya fara zuwa.
Lokacin da yawan zafin jiki ya kai kimanin digiri 210-240 (dangane da ingancin tushe da fakitin ƙari), ana lura da filasha na man injin. Haka kuma, kalmar “filashi” na nufin bayyanar harshen wuta na ɗan lokaci ba tare da konewa daga baya ba.
Ana ƙayyade zafin wutar lantarki ta hanyar hanyar dumama a cikin buɗaɗɗen crucible. Don yin wannan, ana zuba mai a cikin kwanon karfe mai aunawa kuma a yi zafi ba tare da amfani da bude wuta ba (misali, a kan murhun lantarki). Lokacin da zafin jiki ya kai kusa da wurin walƙiya da ake sa ran, ana gabatar da buɗewar tushen harshen wuta (yawanci mai ƙona iskar gas) don kowane hawan digiri 1 sama da saman crucible tare da mai. Idan tururin mai bai yi walƙiya ba, ƙwanƙolin yana dumama da wani digiri 1. Haka kuma har sai an yi walƙiya na farko.
Ana lura da zafin jiki na konewa a irin wannan alamar akan ma'aunin zafi da sanyio, lokacin da tururin mai ba kawai ya tashi sau ɗaya ba, amma yana ci gaba da ƙonewa. Wato lokacin da man ya yi zafi, sai a saki tururi masu iya ƙonewa da ƙarfi ta yadda wutar da ke saman kwandon ba ta fita. A matsakaita, ana lura da irin wannan al'amari a digiri 10-20 bayan isa wurin walƙiya.
Don kwatanta kaddarorin aikin mai na injin, kawai maɓallin walƙiya kawai ana lura da shi. Tun da a ainihin yanayin zafin konewa kusan bai taɓa kaiwa ba. Aƙalla a ma'anar idan aka zo ga buɗe wuta mai girman gaske.
Wurin tafasar man inji
Man yana tafasa a zafin jiki na kimanin digiri 270-300. Boils a cikin al'ada ra'ayi, wato, tare da saki gas kumfa. Bugu da ƙari, wannan al'amari yana da wuyar gaske akan sikelin gabaɗayan ƙarar mai. A cikin sump, man ba zai taba kaiwa wannan zafin ba, saboda injin zai yi kasawa da dadewa kafin ma ya kai digiri 200.
Yawanci ƙananan tarin mai suna tafasa a cikin mafi zafi sassa na injin kuma idan akwai kurakurai a bayyane a cikin injin konewa na ciki. Alal misali, a cikin silinda shugaban a cikin cavities kusa da shaye bawuloli a hali na rashin aiki na gas rarraba inji.
Wannan sabon abu yana da mummunan tasiri a kan kayan aiki na mai mai. A cikin layi daya, sludge, soot ko majiyoyin mai suna samuwa. Wanda kuma, yana gurɓata motar kuma zai iya haifar da toshewar hanyoyin shan mai ko man shafawa.
A matakin kwayoyin, sauye-sauye masu aiki suna faruwa a cikin man da tuni lokacin da aka kai wurin filasha. Na farko, ɓangarorin haske suna ƙafe daga mai. Waɗannan ba abubuwa ne kawai na tushe ba, amma har ma abubuwan filler. Wanda da kansa ke canza kaddarorin mai mai. Kuma ba koyaushe don mafi kyau ba. Abu na biyu, tsarin iskar oxygenation yana haɓaka sosai. Kuma oxides a cikin man inji ba su da amfani kuma har ma da cutarwa. Abu na uku, ana yin saurin kona man mai a cikin injinan injin, tunda man yana da yawa sosai kuma yana shiga cikin ɗakunan konewa da yawa.
Duk wannan a ƙarshe yana rinjayar albarkatun motar. Saboda haka, don kada a kawo man fetur zuwa tafasa kuma kada a gyara injin, ya zama dole a kula da zafin jiki a hankali. A cikin taron na sanyi tsarin gazawar ko bayyanannun ãyõyin man overheating (yawan sludge samuwar a karkashin bawul cover da kuma a cikin sump, accelerated lubricant amfani ga sharar gida, wari na ƙona man kayayyakin a lokacin engine aiki), shi ne bu mai kyau zuwa ga ganewar asali da kuma kawar da musabbabin matsalar.
