Kodi ndi chifukwa chiyani dzimbiri lamphamvu kwambiri m'makina amafuta?

1. Ma polysulfide mu mafuta amachititsa kuti makina a mafuta aziziridwe ndi mphamvu yamagetsi

Mafuta ambiri m'dziko lathu ali ndi ma polysulfide ambiri. Panthawi yotulutsa mafuta, makina ndi zida zamafuta zimawonongeka mosavuta ndi ma polysulfide mu mafuta akamakhudzana ndi mafuta, kenako zimapanga mitundu yosiyanasiyana ya ma polysulfide pamwamba pa makina amafuta. Ma polysulfide, panthawi yogwira ntchito ya makina amafuta, ma polysulfide awa amabweretsa zinthu zambiri zosakhazikika pamakina amafuta. Kuphatikiza apo, zida zamakina zikawonekera mlengalenga kwa nthawi yayitali, carbon dioxide ndi chinyezi mumlengalenga zimagwirizana ndi zigawo zamafuta amakina, zomwe pamapeto pake zimapangitsa kuti makina onse amafuta ndi zida zake ziwonongeke kwambiri.

2. Sulfide mu mafuta imayambitsa dzimbiri la makina a mafuta

Kutupa kumeneku kumachitika makamaka chifukwa cha zinthu zosafunika zomwe zili mu mafuta. Gawo lalikulu la zinthu zosafunikazi ndi sulfide. Sulfide imatha kuchita zinthu ndi chinyezi mu mafuta, zomwe zimapangitsa kuti hydrogen sulfide yambiri ipangidwe mu mafuta. Hydrogen sulfide imachepetsa komanso imachepetsa asidi, zomwe zimapangitsa kuti makina ndi zida zamafuta ndi zinyalala ziwonongeke kwambiri. Kuphatikiza apo, pali zinthu zambiri zosafunika zomwe zimapezeka mu mafuta, zomwe zimayambitsanso dzimbiri mu makina ndi zida zamafuta.

3. Chloride mu mafuta amachititsa kuti makina a mafuta aziziridwe ndi mphamvu yamagetsi

Malinga ndi kafukufuku, mafuta ambiri tsopano ali ndi madzi ambiri amchere. Ngati madzi amchere adutsa mu hydrolysis ya mankhwala, amasanduka hydrochloric acid. Pa makina amafuta, hydrochloric acid ndi chimodzi mwazinthu zazikulu zomwe zimapangitsa kuti makina ndi zida zamafuta ndi zinyalala ziwonongeke. Pa makina ndi zida zamafuta, zimayambitsa dzimbiri lalikulu, motero kuchepetsa ubwino ndi chitetezo cha makina ndi zida zamafuta.