I-air permeability yefilimu eyoluliweyo ibonakaliswe ngokuyinhloko yi-gas permeability kunye ne-coefficient ye-gas permeability.I-gas permeation ibhekisela kumthamo wegesi ophuma kwindawo yeyunithi yefilimu evavanyiweyo kwixesha leyunithi phantsi kwesenzo sobushushu obuqhubekayo kunye nokwahlukana koxinzelelo lweyunithi, xa i-permeation ezinzileyo.I-gas permeability coefficient ibhekisela kwiqondo lokushisa rhoqo
Ngaphantsi kwentlukwano yoxinzelelo lweyunithi, xa i-permeation ezinzileyo, umthamo wegesi kwiyunithi yobunzima kunye nommandla weyunithi ngexesha leyunithi lingena kwifilimu phantsi kovavanyo.
Uvavanyo lwe-air permeability yefilimu eyoluliweyo lwenziwa kwisixhobo esikhethekileyo.Indlela yokwahlula i-high-pressure room kunye ne-low-pressure room
Vula kwaye utywine kakuhle.Kukho igesi yokuvavanya malunga ne-105 Pa kwigumbi loxinzelelo oluphezulu.Umthamo wegumbi loxinzelelo oluphantsi uyaziwa.Sebenzisa umoya wangempela kwigumbi loxinzelelo oluphantsi ekuqaleni kovavanyo.
Umpompo ongenanto uphonswa ngaphandle, uxinzelelo lusondele kwi-zero, kwaye emva koko ukunyuka koxinzelelo kunye nokutshintsha kwigumbi eliphantsi loxinzelelo kufunyenwe nge-gauge yoxinzelelo.
Ezi zinto zilandelayo kufuneka ziqwalaselwe xa kuhlolwa ukunyanzeliswa komoya kwefilimu eyoluliweyo: 1 Ukushisa kufuneka kulawulwe ngokungqongqo ngexesha lovavanyo.
2. Kuthatha ixesha elide ukukhupha umoya kunye nokukhupha umoya ngexesha lovavanyo lwefilimu.Uxinzelelo kwindawo yoxinzelelo oluphantsi kufuneka luvavanywe emva kokufikelela kwi-permeation ezinzile.
Ngaphambi kokurekhoda.
3. Inkqubo yokuhlola uvavanyo iqhutyelwa phantsi kwemeko yokwahlukana koxinzelelo phakathi kwamagumbi amabini aphezulu kunye noxinzelelo oluphantsi.Ngoko ke, ukwenzela ukuba kuqinisekiswe ukuchaneka kwedatha yokuvavanya Kufuneka ubeke ingqalelo ekugxineni kwenkqubo nganye kwisixhobo sokusebenza.