Ipayipi elishiselwe okuvunguzai-friction adhesion theory manje seyamukelwa kabanzi, ekungqubuzaneni okumile, indawo yokuxhumana yangempela ilingana nomthwalo.Futhi lapho i-sliding friction, kufanele sicabangele ubukhona be-shear force, khona-ke, ukwandisa i-spiral steel spiral real contact area result from the normal load and shear load kuya emiphumeleni ehlangene ye.Kungashiwo ukuthi iphuzu lokuxhumana lesivuno lenzeka, ngokucindezeleka okucindezelayo okubangelwa umthwalo ovamile kanye nomthwalo we-tangential wokucindezeleka kokwenziwa okubangelwa ukucindezeleka kwe-shear okuhlobene.

Lapho ipayipi elishiselwe elivunguzayo lingqubuzana emoyeni, kuba nokungcoliswa kwemvelo ngenxa yolwelwesi olungaphezulu, kungokwemvelo ukusebenzisa amathiyori okunamathela kwefilimu angcolile ukuze kuchazwe indawo yensimbi.Eqinisweni, ingxenye enkulu yensimbi ihlale imbozwe ngefilimu encane ye-oxide, ngakho-ke lokhu kungqubuzana kwensimbi, ukungqubuzana kwefilimu ye-oxide empeleni kuyifilimu ye-oxide, ngemuva kokubhujiswa kwefilimu ye-oxide kungenzeka kuphela ukwakha ifilimu. ukungqubuzana kwensimbi kuya kwensimbi.Lapho indawo ephansi yokungqubuzana ingcolile, futhi ukungcoliswa kwamandla e-membrane shear, ukukhula kwe-adhesion junction akubonakali.Lapho ipayipi lensimbi elivunguzayo lapho i-membrane engcolisa ingcindezi ye-shear ifinyelela kumandla wokugunda wefilimu yokungcola kolwelwesi olungaphezulu lasikwa, ukungqubuzana kwaqala ukushelela.Kulokhu, i-coefficient ye-adhesive friction ingavezwa njenge-f = k / v lapho, ngenxa yamandla e-shear yefilimu yokungcola okungaphezulu kuyiphuzu lokukhiqiza lomzimba wensimbi.