Zinc waa habka falcelinta birta.Marka laga eego aragtida aadka u yar, habka qulqulka qulqulka kulul waa laba dheellitiran oo firfircoon, dheellitirka kulaylka iyo dheellitirka birta zinc.Markay birta birta ahi ku dhex milmay ilaa 450℃dareeraha zinc la dhalaaliyay, heerkulka qolka dareeraha nuugista zinc kulaylka shaqada, gaarey in ka badan 200℃, is dhexgalka zinc iyo birta ayaa noqday mid cad, zinc, birta ayaa dusha dusha sare.Sida heerkulka workpiece si tartiib tartiib ah u soo dhawaaday heerkulka of zinc la dhalaaliyay, workpiece sameeyay saamiga kala duwan ee lakabka daawaha birta zinc, qaab-dhismeedka heer sare ah ee daahan zinc, oo leh waqti dheer, koritaanka lakabka dahaadhaysa kala duwan soo bandhigay heerka xawaaraha kala duwan.Marka laga eego dhinaca macro, waxqabadka shaqada ee kor ku xusan ee workpiece la geliyey zinc dareere ah, karkarinta dareeraha zinc waxay dhacdaa marka zinc, falcelinta birta si tartiib tartiib ah isu dheelitirka, dusha zinc si tartiib tartiib ah u dejiso.Workpiece waa la sameeyay;Dusha sare ee zinc, heerkulka shaqada ayaa si tartiib tartiib ah hoos loogu dhigayaa 200℃, falcelinta waxaa joojiyay zinc, birta, kululaynta galvanized daahan oo dhumucdiisuna waa la go'aamiyay.

Dhumucdiisuna waxay daahan zinc arrimaha ugu muhiimsan: qayb biraha saldhig, qallafsanaan dusha birta, birta ee walxaha firfircoon ee Silicon iyo fosfooraska content iyo qaybinta, stress gudaha birta, joomatari workpiece ah, geeddi-socodka galvanizing-kulul .Heerarka caalamiga ah ee hadda jira iyo Shiinaha ayaa loo qaybiyaa qaybo iyadoo loo eegayo dhumucda birta, dhumucda daahan zinc dhumucdiisuna waxay soo jiidan deegaanka waa in ay gaaraan dhumucda u dhiganta, si loo go'aamiyo daahan zinc waxqabadka anticorrosion.Dhumucda birta ee kala duwan ee workpiece, si loo gaaro dheellitirka kulaylka, iyo sinnaanta sarrifka zinc waqtiyo kala duwan, dhumucdiisuna waxay keentay kala duwanaansho.Celceliska dhumucdiisuna waxay ku salaysan tahay habka of waayo-aragnimo galvanizing ee wax soo saarka warshadaha, dhumucdiisuna waxay maxalliga ah dhumucdiisuna waxay daahan zinc la tixgelinayo qaybinta sinnayn ee daahan iyo shuruudaha ilaalinta daxalka loo baahan yahay waayo-aragnimo.Sidaa darteed, heerarka ISO, heerarka ASTM, halbeegyada JIS iyo heerarka Shiinaha shuruudaha dhumucda daahan zinc wax yar ayay ka duwan yihiin, aad isku mid ah.

Dhumucda dahaarka zinc ayaa go'aamiya waxqabadka qaybaha dahaadhka anticorrosion.Wixii 3 mm ka hooseeya dusha sare ee saxanka birta ah ee khafiifka ah waa siman, way adagtahay in la helo daahan dhumuc weyn ee wax soo saarka warshadaha, marka lagu daro, ma aha mid u dhigma dhumucda birta dhejiska zinc waxayna saameyn doontaa xoogga adhesion ee daahan iyo substrate iyo tayada muuqaalka dahaarka.Dahaarka qaro weyn ayaa sababi doona muuqaalka dahaarka ee qallafsan, diirka fudud, qaybaha dajinta ma u adkeysan karaan isku dhaca habka maaraynta iyo rakibidda.Haddii ay jiraan waxyaabo badan oo bir ah oo firfircoon oo silikoon iyo fosfooraska ah, wax soo saarka warshadaha ayaa ahaa mid aad u adag daahan khafiif ah, taas oo ah nuxurka silikoon ee birta ee saameynta u dhaxaysa habka koritaanka lakabka zinc-iron.