Quraac Hot Galvanized Channel Steel
Mabda'a kanaalka Galvanized Steel Steel Hot-Dip galvanized lakabka waxaa lagu sameeyay saddex tallaabo oo zinc ah xaalad dareere heerkul sare ah:
1. Dusha sare ee saldhigga birta waxaa lagu kala diraa dareeraha zinc si loo sameeyo lakabka wajiga zinc-birta;
2. Iions Zinc ee ku jira lakabka daawaha waxay u sii fidayaan substrate-ka si ay u sameeyaan lakab kala dirida zinc-birta;
3. Dusha sare ee lakabka daawaha waxaa ku wareegsan lakabka zinc.
(1) Waxay leedahay lakab zinc cufan oo cufan oo saafi ah oo daboolaya dusha sare ee birta, kaas oo ka fogaan kara xidhiidhka substrate-ka birta leh xal kasta oo daxal ah oo ka ilaalinaya substrate-ka birta ee daxalka.Jawiga guud, lakabka zinc oxide oo aad u dhuuban oo cufan ayaa laga sameeyay dusha sare ee lakabka zinc, kaas oo ay adagtahay in lagu milmo biyaha, sidaas darteed waxay leedahay saameyn difaac ah oo gaar ah oo ku saabsan substrate-ka birta.Haddii zinc oxide iyo qaybaha kale ee jawigu ay sameeyaan cusbada zinc ee aan la milmi karin, saamaynta ilaalinta daxalka ayaa aad u fiican.
(2) Lakabka daaha birta-zinc, oo ay weheliso isafgaradka, waxay soo bandhigaysaa iska caabbinta daxalka gaarka ah ee jawiga buufinta milixda badda iyo jawiga warshadaha;
(3) Sababtoo ah isku-xidhka adag, zinc-iron waa la wada milmi karaa, waxayna leedahay iska caabin xoog leh;
(4) Sababtoo ah zinc wuxuu leeyahay ductility wanaagsan, iyo lakabkiisa daawaha wuxuu si adag ugu dheggan yahay saldhigga birta, qaybaha kulul ee la rusheeyey waxaa lagu samayn karaa feer qabow, duubid, sawir silig, iyo foorarsi iyada oo aan waxyeello u geysan daahan;
