Izitywina ze-Radial shaft ezinomlebe wokutywina omnye okanye ngaphezulu we-PTFE ziyilelwe ukuba zimelane neendawo ezinobundlongondlongo, amaqondo obushushu aphezulu, uxinzelelo oluphezulu kunye nokuqhuba okomileyo ukuba izitywina ze-radial shaft zemveli ezenziwe ngezinto zokutywina ze-elastomeric azikwazi ukumelana.Uninzi lweekhompawundi ze-PTFE zivunyiwe yi-FDA.
Iinzuzo eziphambili ze-PTFE seals ziquka:
Ukumelana neekhemikhali eziphezuluUkumelana nesantya ukuya kuthi ga kwi-30 m/s (5 900 ft/min) Uluhlu olubanzi lobushushu bokusebenza, -70 ukuya +250 °C (–95 ukuya +480 °F)Ukumelana noxinzelelo ukuya kuthi ga kwi-3,5 MPa (500 psi) Ukumelana nokubaleka okomileyo
Ukukhethwa kwezinto zokutywina ngokuqhelekileyo kufuna ukuhambelana phakathi kweenzuzo kunye nokungalunganga.Kukho amakhulu ezinto ezahlukeneyo ze-PTFE ezineentlobo ezahlukeneyo zokugcwaliswa.Izihluzi eziqhelekileyo ziquka i-glass fiber, i-carbon, i-graphite, i-molybdenum disulphide, ii-oxide zetsimbi kunye neepolymers ezahlukeneyo.Ngamnye uneepropati ezahlukeneyo, ezifanelekileyo kwizicelo ezahlukeneyo kunye neemeko zenkonzo.Okuqhelekileyo kuzo zonke izinto ezizaliswe yi-PTFE kukuphucula ukuxhathisa ukunxiba kunye nokuguqulwa.
I-PTFE engagcwaliswanga ibonelela, kwiimeko ezininzi, i-coefficient ephantsi ye-friction kune-PTFE imathiriyeli egcweleyo kunye neqondo eliphantsi lokunxiba kwi-counterface yesitywina.Nangona kunjalo, umlebe wokutywina owenziwe nge-PTFE engagcwaliswanga unokumelana nokunciphisa ukugqoka kunye nokuguqulwa phantsi komthwalo.
Iimathiriyeli ze-PTFE ezicetyiswa kakhulu yi-SKF zidweliswe kwitheyibhile.Ukongeza kwiikhompawundi ezisekelwe kwi-PTFE, i-SKF ikwabonelela ngokutywinwa kwe-radial shaft kwezinye iiplastiki eziguquliweyo, ezinye zazo zidweliswe kwitheyibhile.
Ukukhetha izinto ezifanelekileyo kwimeko yentsimbi kunye ne-O-ring (s) nayo ibaluleke kakhulu ekufezekiseni ukusebenza kokutywinwa okwanelisayo.Qhagamshelana ne-SKF ngolwazi olongezelelweyo.
Iinzuzo eziphambili ze-PTFE seals ziquka:
Ukumelana neekhemikhali eziphezuluUkumelana nesantya ukuya kuthi ga kwi-30 m/s (5 900 ft/min) Uluhlu olubanzi lobushushu bokusebenza, -70 ukuya +250 °C (–95 ukuya +480 °F)Ukumelana noxinzelelo ukuya kuthi ga kwi-3,5 MPa (500 psi) Ukumelana nokubaleka okomileyo
Ukukhethwa kwezinto zokutywina ngokuqhelekileyo kufuna ukuhambelana phakathi kweenzuzo kunye nokungalunganga.Kukho amakhulu ezinto ezahlukeneyo ze-PTFE ezineentlobo ezahlukeneyo zokugcwaliswa.Izihluzi eziqhelekileyo ziquka i-glass fiber, i-carbon, i-graphite, i-molybdenum disulphide, ii-oxide zetsimbi kunye neepolymers ezahlukeneyo.Ngamnye uneepropati ezahlukeneyo, ezifanelekileyo kwizicelo ezahlukeneyo kunye neemeko zenkonzo.Okuqhelekileyo kuzo zonke izinto ezizaliswe yi-PTFE kukuphucula ukuxhathisa ukunxiba kunye nokuguqulwa.
I-PTFE engagcwaliswanga ibonelela, kwiimeko ezininzi, i-coefficient ephantsi ye-friction kune-PTFE imathiriyeli egcweleyo kunye neqondo eliphantsi lokunxiba kwi-counterface yesitywina.Nangona kunjalo, umlebe wokutywina owenziwe nge-PTFE engagcwaliswanga unokumelana nokunciphisa ukugqoka kunye nokuguqulwa phantsi komthwalo.
Iimathiriyeli ze-PTFE ezicetyiswa kakhulu yi-SKF zidweliswe kwitheyibhile.Ukongeza kwiikhompawundi ezisekelwe kwi-PTFE, i-SKF ikwabonelela ngokutywinwa kwe-radial shaft kwezinye iiplastiki eziguquliweyo, ezinye zazo zidweliswe kwitheyibhile.
Ukukhetha izinto ezifanelekileyo kwimeko yentsimbi kunye ne-O-ring (s) nayo ibaluleke kakhulu ekufezekiseni ukusebenza kokutywinwa okwanelisayo.Qhagamshelana ne-SKF ngolwazi olongezelelweyo.
Ixesha lokuposa: Jun-28-2020