Wararka

Mabda'a jiilka ee daahan galvanized kulul-muquufin
Galvanizing-ku-kulul waa hab-raac fal-celin kiimikaad oo bir ah. Marka loo eego aragti yar, habka galvanization-ku-kululku waxa uu ku lug leeyahay laba dheellitiran oo firfircoon: dheellitirka kulaylka iyo dheellitirka birta zinc. Marka qaybaha birta lagu geliyo zinc dhalaalaysa qiyaastii 450 ℃, qaybaha birta ee heerkulka qolka waxay nuugaan kulaylka dareeraha zinc. Marka heerkulku ka sarreeyo 200 ℃, isdhexgalka ka dhexeeya zinc iyo birta ayaa si tartiib tartiib ah u muuqanaya, iyo zinc waxay dhexda u gelisaa lakabka sare ee qaybaha birta birta.

Marka heerkulka birta uu si tartiib tartiib ah u soo dhawaado heerkulka dareeraha zinc, lakabyo alloy ah oo leh saamiyo kala duwan oo birta zinc ah ayaa laga sameeyay lakabka dusha sare ee birta, sameynta qaab dhismeed lakab ah oo daahan zinc ah. Sida wakhtigu sii socdo, lakabyada dahaarka ee kala duwan ee dahaarka ayaa muujinaya heerarka koritaanka kala duwan. Marka loo eego aragtida makro, habka kor ku xusan wuxuu muujinayaa sida qaybo bir ah oo lagu dhex milmay dareeraha zinc, taasoo keenaysa karkarinta dusha dareeraha zinc. Marka falcelinta kiimikada birta zinc ay tartiib tartiib isu dheelitirto, dusha dareeraha zinc ayaa si tartiib tartiib ah u dejisa.
Marka gabalka birta kor loogu qaado heerka dareeraha zinc, iyo heerkulka gabal birta si tartiib tartiib ah hoos ugu dhaco 200 ℃, falcelinta kiimikada birta zinc joogsato, iyo daahan galvanized kulul-muquufin ah ayaa la sameeyay, iyadoo dhumucda la go'aamiyay.
Shuruudaha dhumucda lakabyada galvanized kulul-muquufin
Qodobbada ugu muhiimsan ee saameeya dhumucda daahan zinc waxaa ka mid ah: Halabuurka birta substrate, qallafsanaanta dusha birta, content iyo qaybinta walxaha firfircoon ee Silicon iyo fosfooraska ee birta, diiqada gudaha ee birta, cabbirada joomatari ee qaybaha birta, iyo geeddi-socodka galvanizing kulul.
Heerarka galvanizing kulul ee caalamiga ah iyo Shiinaha ee hadda jira ayaa loo qaybiyaa qaybo ku salaysan dhumucda birta. Dhumucda caalamiga ah iyo kuwa maxalliga ah ee daahan zinc waa in ay gaaraan dhumucda u dhiganta si loo go'aamiyo caabbinta daxalka ee daahan zinc. Waqtiga loo baahan yahay si loo gaaro isku dheelitirnaanta kulaylka iyo dheellitirka birta zinc ee xasilloon ayaa ku kala duwan qaybaha birta leh dhumucyada kala duwan, taasoo keentay dhumucyo kala duwan. Dhumucda celceliska daahan ee heerka waxay ku saleysan tahay qiimaha khibradda wax soo saarka warshadaha ee mabda'a galvanizing kulul ee kor ku xusan, iyo dhumucda maxalliga ah waa qiimaha khibradda ee loo baahan yahay in la tixgeliyo qaybinta sinnaanta ee dhumucda daahan zinc iyo shuruudaha daahan iska caabbinta daxalka .

Sidaa darteed, heerarka ISO, Heerarka ASTM-ka Mareykanka, Heerarka JIS ee Japan, iyo heerarka Shiinaha waxay leeyihiin shuruudo xoogaa ka duwan dhumucda daahan zinc, farqiguna maaha mid muhiim ah.
Saamaynta iyo saamaynta kuleelka kulul ee dhumucda daahan galvanized
Dhumucdiisuna waxay daahan galvanized kulul-muquufin go'aamiya iska caabin daxalka ee qaybaha dahaadhnayd. Si aad u hesho dood faahfaahsan, fadlan tixraac xogta ku habboon ee ay bixiso Ururka Galvanization Hot Dip ee ku lifaaqan. Macaamiisha sidoo kale waxay dooran karaan dhumucda daahan zinc ka sare ama ka hooseeya heerka.
Way adag tahay in la helo dahaarka dhumuc weyn ee wax soo saarka warshadaha ee taarikada birta dhuuban ee leh lakabka siman ee 3mm ama ka yar. Intaa waxaa dheer, dhumucda dahaarka zinc ee aan u dhigmin dhumucda birta waxay saameyn kartaa isku-dhafka u dhexeeya daaha iyo substrate-ka, iyo sidoo kale tayada muuqaalka muuqaalka. Dahaarka xad-dhaafka ah wuxuu sababi karaa muuqaalka dahaarka inuu noqdo mid qallafsan, u nugul inuu dillaaco, qaybaha dhejiska ahna uma adkeysan karaan isku dhaca inta lagu jiro gaadiidka iyo rakibidda.
Haddii ay jiraan waxyaabo badan oo firfircoon sida silicon iyo fosfooraska birta, sidoo kale aad bay u adag tahay in la helo dahaarka khafiifka ah ee wax soo saarka warshadaha. Tani waa sababta oo ah maadada silikoon ee birta waxay saamaysaa habka korriinka ee lakabka birta ee zinc, taas oo keeni doonta wajiga zeta ee lakabka birta ee zinc si dhakhso ah u koraan oo u riixo wejiga zeta dhinaca lakabka dusha sare ee daahan, taasoo keentay qallafsan iyo lakabka dushiisa ee caajiska ah ee daahan, oo dhalinaya daahan madow oo cawl leh oo ku dheggan liidata.
Sidaa darteed, sida kor looga hadlay, waxaa jira hubanti la'aan korriinka dahaarka galvanized kulul. Dhab ahaantii, inta badan way adag tahay in la helo tiro gaar ah oo dhumucdiisuna tahay dahaarka ee wax soo saarka, sida lagu qeexay heerarka galvanized-kuleelka kulul.
Dhumucdiisuna waa qiime la taaban karo oo la soo saaro ka dib tiro badan oo tijaabo ah, iyada oo la tixgelinayo arrimo iyo shuruudo kala duwan, waana mid cilmiyeysan oo macquul ah.