Muraayadaha dahaadhka ah waxa la alifay 1865kiiWaxay ka samaysan tahay muraayadda dahaarka ee waxtarka sare leh ee laba (ama saddex) galaas iyadoo la isticmaalayo xoog sare iyo cufnaanta gaaska sare ee koollada isku dhafan ee muraayadda isku xidha jir aluminium aluminium ah oo ka kooban qallajiye.
Aluminium shaabad laba-kanaal ah
Taageerada spacer aluminium oo laga soocay laba xabbadood oo quraarad ah si siman, aluminium spacer waxaa ka buuxsamay shaandho molecular ah oo dahaaran, si loo sameeyo meel dabool ah oo u dhaxaysa lakabyada galaaska.
Shaandho molecular galaas oo dahaadhan ah waxay nuugi kartaa biyaha iyo haraaga wasakhowga dabiiciga ah ee gudaha ku jira, taas oo ka dhigaysa muraayadda dahaadhka nadiif ah oo hufan xitaa heerkul aad u hooseeya, sidoo kale waxay dheelli kartaa farqiga cadaadiska gudaha iyo dibadda ee xoogga leh kaas oo ay sababaan isbeddelka weyn ee heerkulka. .Shaandhooyinka molecular galaas ee dahaaran ayaa sidoo kale xalliya dhibaatada qallooca iyo burburinta ay keento balaadhinta ama foosha muraayadda, waxayna dheereysaa nolosha adeegga muraayadda.
Codsiga shaandho molecular galaas dahaaran:
1) Ficil qalajinta: in laga nuugo biyaha galaaska godan.
2) Saamaynta dhaxan.
3) Nadiifinta: ku dar boodhka sabbaynaya hawada.
4) deegaanka: dib ayaa loo warshadayn karaa, oo aan waxyeelo u geysan deegaanka
Shaabad nooca-xabag ah oo isku dhafan
Xabagta dahaarka waa ururinta spacer iyo shaqada taageer ee jir aluminium ah, shaqada qalajinta ee shaandhada molecular galaas (budada), shaqada xidhidhiyaha xabagta butyl, iyo shaqada xoogga qaabdhismeedka xabagta polisulfide. oo lagu rakibay muraayadda.
Alaabooyinka la xidhiidha: JZ-ZIG shaandho molecular, JZ-AZ shaandho molecular