miridhku cad waa ifafaale galvanizing dabadii. Mas'uuliyadda ka-hortaggeeda waxay ku jirtaa habka loo raro, loo maareeyay oo loo kaydiyay ka hor rakibidda iyo isticmaalka alaabta galvanized. Joogitaanka miridhku cad ma aha milicsiga on waxqabadka daahan galvanized ee, laakiin halkii mas'uuliyadda dhammaan kuwa ku lug leh silsilad sahayda si loo hubiyo in sababaha miridhku cad la aqoonsan yahay iyo khataraha ay dhacdo in la yareeyo on birta cusub galvanized. Marka ay timaaddo Shiinaha tuubo galvanized ah oo kulul, halkaas oo birta cusub ee galvanized ay soo gaadhay biyo saafi ah (roob, sayax ama uumi), jawiga ogsajiinta ku yar, biyuhu waxay sii wadi doonaan inay ka falceliyaan zinc-ka waxayna si tartiib tartiib ah u cunaan daboolka. Xaaladda ugu badan ee miridhku ku yimaaddo waa alaab la galvanized ah oo buul la wada leeyahay, si adag u xidhxidhan, ama marka biyuhu dhex geli karaan alaabta oo ay ku sugnaadaan muddo dheer.
Guud ahaan, biyaha saafiga ah (H2O) kuma jiraan milix ama macdan kala diri, zinc waxay si degdeg ah uga falcelin doontaa biyo saafi ah si ay u sameeyaan zinc hydroxide, cad weyn iyo oksaydh zinc ah oo aan degganayn. Dhuumaha birta waxay ka kooban tahay dahaar dhuuban oo zinc ah oo lagu daray substrate bir ah. Isku-dhafkan wuxuu bixiyaa walxo leh sifooyinka farsamada ee birta oo lagu xoojiyay caabbinta daxalka ee zinc. Si kastaba ha noqotee, marka dusha sare ee galvanized la weeraray oo xeryahooda zinc hydroxide ay sameeyeen, waa suurad wacan in laga saaro alaabada oksaydhka ee dusha sare sababtoo ah: 1) joogitaankooda waxay joojinayaan samaynta oxides carbonate deggan; 2) waa kuwo aan muuqaal lahayn.
Marka la eego tubbada birta duuban ee qabow, dib-u-soo-celinta dusha sare ee galvanized waa daaweyn kale oo muhiim ah oo loogu talagalay tuubooyinka birta ee adeega. Gaar ahaan, meesha uu daxalka cadi ka dhacay oo shaygu uu ku dhici karo soo-gaadhis joogto ah oo faafin karta daxalka la midka ah, dib-u-soo-noolaynta dusha sare waxa lagu samayn karaa iyadoo lagu daweynayo dusha xal 5% sodium dichromate 0.1% sulfuric acid, cadayashada buraash silig adag ah 30 ilbiriqsi ka hor inta aanad si fiican u raacin dusha sare. Sida xirfadle ah soo saaraha tuubada birta ee Shiinaha ee Shiinaha, waxaan jeclaan lahayn inaan ku siinno dhowr tillaabo fudud oo si weyn u yareyn kara ama baabi'in kara sameynta miridhku cad sida soo socota fikraddaada:
• Shaqada baakadaysan ha engegin
• Xir alaabta si aad u oggolaato wareegga hawada ee meelaha dushooda
• Isku dheji alaabta la soo buuxiyay si aad ugu oggolaato in biyuhu ka soo baxaan
• Ku daawee dusha biyaha celiyaha iska leh ama dahaarka xannibaadda si aad uga hortagto taabashada qoyaanka oogada galvanized
Fariintaada noo soo dir:
Waqtiga boostada: Agoosto-20-2018
