Inta lagu jiro gudbinta korontada, munaaradda birta waa qayb aad muhiim u ah. Inta lagu jiro wax soo saarka birta birta alaabta birta, habka wax soo saarka ee galvanizing kulul-muquufin guud ahaan la ansixiyay on dusha sare si ay u ilaaliyaan dusha sare ee alaabta birta ka daxalka hawada dibadda iyo deegaanno kala duwan. Isticmaalka geeddi-socodka galvanizing-kuleylku wuxuu gaari karaa saameyn wanaagsan oo ka-hortagga daxalka. Iyada oo shuruudaha sare ee gudbinta awoodda, shuruudaha habka wax soo saarka ee alaabta birta galvanized ayaa sidoo kale ka sarreeya.
(1) Mabda'a aasaasiga ah ee galvanization-ka kulul
Galvanizing Qulqulka kulul, oo sidoo kale loo yaqaan galvanizing-kuleelka kulul, waa mid ka mid ah hababka daahan ee ugu wanaagsan ee lagu ilaaliyo substrate-ka birta. In zinc dareeraha ah, ka dib markii workpiece birta uu maray daaweynta jirka iyo kiimikaad, workpiece birta la rusheeyey in zinc dhalaalaysa heerkulka 440 ℃ ~ 465 ℃ ama ka sareeya daawaynta. Substrate-ka birta ah wuxuu la falgalaa zinc-ka dhalaalaysa si uu u sameeyo lakabka dahabka ee Zn Fe iyo lakabka zinc saafiga ah wuxuuna daboolayaa dhammaan dusha sare ee shaqada birta. Dusha sare ee galvanized waxay leedahay adayg gaar ah, waxay u adkeysan kartaa khilaaf weyn iyo saameyn, waxayna leedahay isku-dhafan wanaagsan oo leh jaantuska.
Habka daadintu kaliya ma laha iska caabbinta daxalka ee galvanizing, laakiin sidoo kale waxay leedahay lakabka aluminium ee Zn Fe. Waxa kale oo ay leedahay iska caabin adag oo daxalka ah oo aan la barbar dhigi karin galvanizing. Sidaa darteed, habkani wuxuu si gaar ah ugu habboon yahay bay'adaha daxalka xooggan ee kala duwan sida aashitada xooggan, alkali iyo ceeryaamo.
(2) Astaamaha wax qabad ee galvanization-ka kulul
Waxay leedahay daaha zinc cufan oo cufan oo saafi ah oo ku yaal dusha birta, kaas oo ka fogaan kara xiriirka substrate-ka birta ee xal kasta oo daxalka ah kana ilaalinaya substrate-ka birta ee daxalka. Jawiga guud, lakabka zinc oxide oo dhuuban oo cufan ayaa laga sameeyay dusha sare ee lakabka zinc, kaas oo ay adagtahay in lagu milmo biyaha, sidaa darteed waxa ay door gaar ah ka ciyaartaa ilaalinta matrixka birta. Haddii zinc oxide iyo qaybaha kale ee jawigu ay sameeyaan cusbada zinc ee aan la milmi karin, saamaynta ka-hortagga daxalka ayaa aad ugu habboon.
Galvanizing kulul ka dib, birta waxay leedahay lakabka aluminium ee Zn Fe, kaas oo is haysta oo leh caabbinta daxalka u gaarka ah jawiga ceeryaanka milixda badda iyo jawiga warshadaha. Xidhiidhka adag awgiis, Zn Fe waa mid la isku halleyn karo oo wuxuu leeyahay iska caabin xoog leh. Sababtoo ah Zinc wuxuu leeyahay ductility wanaagsan iyo lakabka alloy ay si adag ugu dheggan yihiin substrate birta, workpiece galvanized kulul-muquuninta waxaa la samayn karaa by feeray qabow, rogrogid, sawir silig, foorarsan, iwm iyada oo aan waxyeello daahan zinc ah.
Galvanizing kulul ka dib, workpiece birta waxay u dhigantaa daawaynta annealing ah, kaas oo si wax ku ool ah u hagaajin kara sifooyinka farsamo ee substrate birta, baabi'iyo stress ee workpiece birta inta lagu guda jiro samaynta iyo alxanka, iyo waa ku haboon in ay leexiyaan workpiece birta ah.
Dusha sare ee workpiece birta ka dib galvanizing kulul waa dhalaalaya oo qurux badan. Lakabka Zinc ee saafiga ah waa lakabka zinc ugu caag ah ee galvanization-ku-kulul. Aasaasheedu waxay asal ahaan la mid yihiin zinc saafi ah, waxayna leedahay ductility, sidaas darteed waa dabacsanaan.
Waqtiga boostada: Agoosto-26-2022
