Karkace welded bututuKa'idar adhesion na gogayya yanzu an karɓi ko'ina, a cikin juzu'i na tsaye, ainihin wurin tuntuɓar yana daidai da kaya.Kuma a lokacin da zamiya gogayya, dole ne mu yi la'akari da kasancewar karfi karfi, sa'an nan, kara karkace karfe ainihin lamba yankin sakamakon daga al'ada load da karfi load zuwa hade effects na.Hakanan za'a iya cewa ma'anar yawan amfanin ƙasa yana faruwa, tare da matsananciyar damuwa da ke haifar da nauyin al'ada da kuma nauyin tangential na damuwa na roba wanda ya haifar da damuwa mai alaka.

A lokacin da karkace bututu welded ne gogayya a cikin iska, akwai wani halitta gurbatawa saboda surface membrane, yana da na halitta yin amfani da gogayya sabon abu gurbata fim manne theories wanzu don bayyana karfe surface.A gaskiya ma, mafi yawan karfe surface ne ko da yaushe rufe da bakin ciki oxide fim, kuma ta haka ne wannan gogayya zuwa karfe gogayya, da gogayya na oxide fim ne da gaske wani oxide fim, bayan halakar da oxide fim ne kawai zai yiwu a kai tsaye samar da wani oxide fim. karfe-zuwa-karfe gogayya.Lokacin da ƙananan juzu'i ya gurɓata, da kuma gurɓatar ƙarfin juzu'in membrane, haɓaka haɗin haɗin gwiwa ba a bayyane yake ba.Lokacin da bututun karfe mai karkata lokacin da damuwa mai tsaftar membrane ya kai karfin gurɓataccen fim ɗin membrane, gogayya ta fara zamewa.A wannan yanayin, manne gogayya coefficient za a iya bayyana a matsayin f = k / v inda, domin karfi ƙarfi na surface gurbata fim ne yawan amfanin ƙasa batu na karfe jiki.