Karye zoben fistan yana ɗaya daga cikin nau'ikan lalacewa na yau da kullun ga zoben piston. Gabaɗaya, zoben fistan na farko da na biyu suna da saurin karyewa, kuma ɓangarorin da suka karye galibi suna kusa da juna. Za a iya karye zoben fistan zuwa guntuwa da yawa, ko kuma ya lalace ko ma ya ɓace. Zoben fistan da ya karye zai ƙara lalacewa na Silinda. Za a iya hura zoben da ya karye na injin dizal mai bugu biyu a cikin bututun shaye-shaye ko kuma akwatin da ake zubarwa, ko ma a hura shi a cikin karshen turbocharger don lalata ruwan injin injin din, wanda zai haifar da munanan hadurra. A yau zan kai ku don ganin menene dalilin karyewar zoben fistan~
Dalilan gama gari na karyewar zoben piston:
Akwai dalilai da yawa don karyewar zoben fistan. Baya ga lahani na kayan aiki da ƙarancin sarrafawa, galibi ana haifar da shi ta rashin kulawa da kulawa yayin amfani da ƙarancin ingancin taro.
1. Tazarar dake tsakanin baki tayi kadan
Lokacin da tazarar zoba ya fi ƙanƙanta da tazarar taro, zafin zafi na zoben piston yana ƙaruwa yayin aiki, ta yadda ƙarfen da ke kan rufin ba shi da isasshen ɗaki don faɗaɗawa, kuma ƙarshen biyu na haɗin gwiwa suna lanƙwasa kuma sun karye kusa da zoba.
2. Ring tsagi carbon ajiya
Rashin konewa mara kyau, zafi mai zafi na bangon Silinda don yin oxidize ko ƙone mai zai haifar da ma'aunin carbon mai tsanani a cikin silinda. Lokacin da ajiyar coke ya yi tsanani, motsi na zobe yana toshewa, kuma zobe da bangon Silinda suna aiki da karfi, kuma an gauraya man da aka goge da karfe, kuma a ƙarƙashin aikin gas ɗin da ke zubar, an ajiye ajiyar coke na gida. kafa a kan ƙananan ƙarshen tsagi na zobe. Akwai ma'ajin carbon na gida a ƙarƙashin zoben fistan, kuma ɓangaren sama yana fuskantar matsin lamba na lokaci-lokaci, yana haifar da zoben piston ya karye saboda lankwasawa.
3. Silinda liner nika tebur
Motsin dangi na dogon lokaci na taron piston da silinda na silinda yana haifar da layin silinda ya ƙare kuma dandamalin niƙa ya bayyana akan ɓangaren saman silinda. Lokacin da fistan ya motsa zuwa tsakiyar matattu, zoben piston na farko ya bugi teburin niƙa kuma yana tasiri kuma ya karye.
4. Yawan lalacewa na tsagi na zobe
Ƙarshen ƙarshen ramin zobe yana karkata (mai siffar ƙaho) bayan wuce gona da iri. Lokacin da fistan yana kusa da babban mataccen cibiyar, matsin iskar gas yana sa zoben ya manne a ƙasan ƙarshen ƙarshen ragi mai karkata, zoben piston yana murɗawa kuma ya lalace, kuma ragon zoben piston yana sawa sosai kuma ya gaji kuma ya karye.
5. Zoben piston yana rataye tashar jiragen ruwa
A cikin injunan diesel mai bugun jini, sau da yawa ana kama zoben piston a cikin shara kuma tashar shaye-shaye ta sa zoben ya karye. Saboda zoben piston yana da mafi girman tashin hankali a ɓangaren buɗewa, nakasar zafi yana da girma, kuma haƙarƙarin da ke tsakanin tashoshin iska a kan silinda na silinda suna da sauƙi ta hanyar zafi. Lokacin da piston ya motsa, zobe ya hadu da tashar jiragen ruwa, kuma zoben zai karye idan dai bude zoben ya dan kama tashar iska.
6. Radial fadadawa da raguwar gajiya na zoben piston
Lokacin da ƙarfin roba na zoben piston bai isa ba ko kuma layin silinda ya wuce kima, zoben piston da bangon silinda ba za a iya haɗa su da kyau ba, wato, ba za a iya kiyaye matsewar iska ba, ta yadda iskar gas mai ƙarfi ta jefa zoben cikin ciki. zoben tsagi. Lokacin da fistan ya sauko, matsin iskar gas a cikin silinda yana raguwa, kuma ana fitar da zoben piston daga tsagi na zobe. Zoben fistan yana ci gaba da faɗaɗa kuma yana yin kwangila a radiyo, yana haifar da gajiya da karaya.
7. Yawan lalacewa na zoben piston yana sa ƙarfin zoben ya kasa cika buƙatun kuma zoben ya karye.
Abubuwan zoben fistan na yanzu galibi kayan aiki ne masu karyewa kamar baƙin ƙarfe simintin launin toka, baƙin ƙarfe simintin ƙarfe, baƙin ƙarfe ductile, kuma tsarin cikin gida yana iya samun porosity, fasa ko rarrabuwa na abubuwan da aka gyara yayin aikin simintin, wanda zai iya haifar da ƙarfin gida ya faɗi ko maida hankali kan damuwa. a tsaga, haifar da girgiza yayin aiki Karya ko gajiya.
8. Mummunan lalacewa na layin Silinda
Takaddun lalacewa a saman da ƙasa matattun wurare na tsakiya yana haifar da kafadu, babban lalacewa a babban ƙarshen sandar haɗi ko canje-canje a cikin ainihin mataccen wurin da aka mutu bayan an gyare-gyaren babba da ƙananan iyakar haɗin haɗin gwiwa, wanda ya haifar da tasiri da karye. zobe karkashin aikin inertial karfi .
9. Matsalar hadin gwiwa tsakanin mai da mai
Daga nazarin yanayin man fetur, wasu man fetur sun ƙunshi babban abun ciki na sulfur, kamar man fetur na Reye's 1000s. Don haka, idan man ya ƙone, ana samar da ƙarin SO2 da SO3. Duk da haka, SO2 da SO3 suna da iskar gas a yanayin zafi, kuma hulɗar su kai tsaye da karafa na iya haifar da lalata gas. Har ila yau, yana haɓaka taurin ajiyar carbon da ma'ajiyar colloidal, wanda ke ƙara lalacewa na silinda da zoben piston. Dangane da buƙatun, lokacin da injunan diesel ke amfani da mai mai sulfur mai ƙarfi, mai ƙarfi ko babban alkaline na musamman ya kamata a yi amfani da mai. Idan babban injin ba ya amfani da man silinda wanda ya dace da mai ko maye gurbin man silinda da man inji. Ta wannan hanyar, ƙarfin man mai don kawar da acid ɗin da ake samu ta hanyar konewa yana raguwa, yana haifar da sinadarin acid ɗin ya lalata piston da zoben piston da gaske, yana haifar da karaya akai-akai.
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Hanyar maganin gaggawa don karyewar zoben piston:
Karye zoben fistan ya fi faruwa ne a zoben fistan na sama, wanda galibi yakan gamu da matsanancin zafi da matsa lamba, musamman idan an sa saman silinda. Idan zoben ya karye yayin aiki, karyewar zoben zai taso saman silinda na ciki kuma ya yi sauti; ko kuma kasan silinda zai yi zafi saboda yatsan iskar iskar gas, wanda hakan zai rika zubowa a cikin kwandon kuma ya haifar da hazo mai yawa. A gefe guda kuma, bayan zoben piston ya karye, matsa lamba kuma yana raguwa, wanda ke haifar da mummunan konewa da baƙar fata a cikin iskar gas.
