Wararka

Galvanizing Qulqulka Kulul, oo sidoo kale loo yaqaan galvanizing maquufin kulul iyo galvanizing kulul, waa hab wax ku ool ah oo ka hortagga daxalka birta, inta badan loo isticmaalo dhismayaasha birta iyo tas-hiilaadka warshadaha kala duwan. Waa in lagu dhex miliyo qaybaha birta burburay ee zinc la dhalaaliyay qiyaastii 500 ℃ si loogu hoggaansamo lakab zinc ah oogada qaybaha birta, si loo gaaro ujeeddada ka hortagga daxalka. Qulqulka qulqulka kulul ee qulqulka qulqulka qulqulka: qashin-qaadista badeecada dhammaatay - biyo-dhaqidda - ku darista xal-ku-dhigid caawiye ah - qallajin - dhejinta - qaboojinta - daawada - nadiifinta - nadiifinta - dhammaystirka galvanizing musqusha kulul , oo uu leeyahay taariikh in ka badan 170 sano tan iyo markii Faransiisku codsatay galvanizing kulul warshadaha 1836. Soddonkii la soo dhaafay sano, iyada oo horumarka degdega ah ee birta xariijimaha qabow duuban, warshadaha galvanizing qubayska kulul ayaa horumariyo on baaxad weyn.
Galvanizing Qulqulka Kulul, oo sidoo kale loo yaqaan galvanizing-kuleelka kulul, waa hab lagu helo dahaarka birta ee qaybaha birta iyadoo lagu dhex gelinayo zinc dhalaalaysa. Iyada oo horumarinta degdega ah ee gudbinta korantada sare, gaadiidka, iyo isgaadhsiinta, shuruudaha ilaalinta qaybaha birta ayaa sii kordheysa, iyo baahida loo qabo galvanizing kulul oo kulul ayaa sidoo kale sii kordhaya.

Waxqabadka ilaalinta
Guud ahaan, dhumucda lakabka galvanized waa 5 ~ 15 μm. Lakabka galvanized-kuleelka guud ahaan waa 35 μ Korka m, xitaa ilaa 200 μm Waxaa la og yahay in hababka zinc u caabbinta daxalka atmospheric ay ka mid yihiin ilaalinta farsamada iyo ilaalinta korantada. Marka la eego xaaladaha daxalka atmospheric, dusha lakabka zinc wuxuu leeyahay ZnO, Zn (OH) 2, iyo filimada ilaalinta aasaasiga ah ee zinc carbonate, kuwaas oo ilaa xad hoos u dhigaya daxalka zinc. Haddii filimkan difaaca (sidoo kale loo yaqaan miridhku cad) uu dhaawacmo, wuxuu samayn doonaa lakab filim oo cusub. Marka lakabka zinc uu si ba'an u waxyeeloobo oo uu khatar galiyo substrate-ka birta, zinc wuxuu bixiyaa ilaalinta korantada ee substrate-ka. Awoodda caadiga ah ee zinc waa -0.76V, iyo awoodda caadiga ah ee birta waa -0.44V. Marka zinc iyo birta ay sameeyaan batari yar, zinc waxaa lagu milmaa sida anode, iyo birta waxaa loo ilaaliyaa sida cathode. Sida iska cad, iska caabinta daxalka atmospheric ee galvanizing qulqulaya kulul ee birta salka birta ah ayaa ka fiican kan electrogalvanizing.
Habka samaynta daahan Zinc
Habka formation of lakabka galvanized muquuninta kulul waa hab of samaynta daawaha zinc bir ah dhexeeya substrate birta iyo lakabka zinc saafi ka baxsan Z. waxay u ogolaataa isku-dhafka wanaagsan ee u dhexeeya birta iyo lakabka zinc saafiga ah. Geedi socodka waxaa si fudud loo sifayn karaa sida soo socota: Marka workpiece birta la geliyo dareeraha zinc la dhalaaliyay, zinc iyo zinc marka hore la sameeyay on interface α Iron (jirka core) dhalaalid adag. Kani waa kareem ku samaysmay kala diri atamka zinc ee xaalada adag ee birta saldhiga ah. Labada atom ee birta ah waa isku dhafan yihiin, soo jiidashada u dhaxaysa atamka waa mid yar. Sidaa darteed, marka Zincku gaadho dheriga dhalaalka adag, labada atomi ee zinc iyo birta ayaa midba midka kale ku kala firdhiyaa, atamyada zinc-ka ayaa ku faafaya (ama gudaha u galay) matrixka birta ahi waxay u guuraan shabagga matrixka, si tartiib tartiib ah ayey u samaysanayaan birta. , halka birta iyo zinc ay ku firdhiyeen dareeraha zinc-ka dhalaaliyay ee birta xoogga badan waxay ka samaysan yihiin isku-dhafka dhexdhexaadka ah ee FeZn13, kaas oo hoos u dhacaya. ee dheriga galvanizing kulul, samaynta slag zinc. Marka qaybta shaqada laga saaro xalinta zinc-ka, lakabka zinc saafiga ah ayaa laga sameeyay dusha sare, kaas oo ah crystals hexagonal. Waxa ku jira birta aan ka badnayn 0.003%.
Kala duwanaanshaha farsamada
Iska caabbinta daxalka ee galvanizing kulul ayaa aad uga sarreeya kan galvanizing qabow (sidoo kale loo yaqaan galvanization). Galvanizing kulul kuma daxaloobayo dhawr sano gudahood, halka galvanizing qabow uu miridhku doono saddex bilood gudahood.
Habka electrogalvanizing waxaa loo isticmaalaa si looga ilaaliyo biraha daxalka. "Waxaa jiri doona lakab ilaalin bir ah oo wanaagsan oo ku yaala cidhifyada iyo dusha sare ee alaabta, taas oo ku dareysa qayb qurux badan oo wax ku ool ah. Maalmahan, shirkadaha waaweyni waxay leeyihiin shuruudo sii kordheysa oo loogu talagalay qaybaha alaabada iyo tignoolajiyada, sidaa darteed waxaa lagama maarmaan ah in dib loo habeeyo tignoolajiyada heerkan. "