Değişik karışım oranlarına göre ZDDP katkı maddesinin aşınma önleyici veriminin araştırılması

Öz

İçten yanmalı motorlarda sürtünmeyi azaltmak ve hareketli parçaları aşınmadan korumak maksadıyla baz yağ ve katkı maddelerinden oluşan yağlama yağları kullanılmaktadır. ZDDP yağlama yağları içerisinde aşınmayı azaltma ve önleme konusunda görevli günümüzde ticari motor yağları içerisinde en çok kullanılan katkı maddesidir. Ancak bu katkı maddesi çevreye zararlı fosfor elementi içermekte ve araç katalitik konvertörlerini zehirlemektedir. Bu çalışmada yağlama yağlarının içeriğindeki ZDDP oranı azaltarak zehirlemenin etkilerini azaltmak maksadıyla % 1, 3 ve 5 oranları gibi düşük konsantrasyonlardaki baz madeni yağ ZDDP karışımlarının aşınma performansları tribometre testleri ve yüzey analizleri ile araştırılmıştır. Çalışma sonuçları % 3 ve 5 ZDDP+ baz yağ karışımının aşınma önleyici tribofilmi yüzeyde oluşturduğu ve birbirine yakın aşınma oranları ile yağlama yağlarının içerisinde kullanılabileceğini göstermiştir.

Anahtar Kelimeler

• ZDDP,katalitik konvertör,aşınma oranı,tribofilm

Kaynakça

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