Waa la ogyahay in tayadatuubooyinka laba jibbaaran iyo kuwa qaabaysan ee galvanizedhabka rakibidduna si toos ah ayuu u saameeyaa xasilloonida dhismayaasha birta ah.
Waqtigan xaadirka ah, agabka taageerada ee suuqa yaalla waa birta kaarboonka. Alaabada ceeriin ee birta kaarboonka ah guud ahaan waa Q235 iyo Q345, kuwaas oo lagu daweeyo galvanizing kulul. Taageerada waxaa laga sameeyaa bir xarig ah oo loo maro laablaabid qabow, alxan, galvanizing kulul iyo habab kale. Guud ahaan, dhumucdu waa inay ka weynaataa 2mm, gaar ahaan meelaha xeebta, meelaha dhaadheer iyo meelaha kale ee dabaysha leh, waxaa lagu talinayaa in dhumucdu aysan ka yarayn 2.5mm, haddii kale waxaa jira khatar ah in la jeexjeexo barta isku xirka birta.
Dhismayaasha waaweyn ee dhismaha,tuubooyinka laba jibbaaran iyo kuwa qaabaysan ee galvanized birta kaarboonka, intee in le'eg oo dhumucda dahaarka zinc ah ayaa la gaarayaa si loo daboolo shuruudaha cimriga adeegga daxalka deegaanka?
Sida aan wada ognahay, dhumucda galvanizing-ka kulul waa tusmada tayada iyo farsamada muhiimka ah eetuubo laba jibbaaran oo galvanized, taas oo la xiriirta badbaadada iyo cimri dhererka qaab-dhismeedka. Inkasta oo ay jiraan heerar qaran iyo kuwo xirfadeed, haddana dhumucda dahaarka zinc-ka ee aan u qalmin ee taageerada ayaa weli ah dhibaato farsamo oo baahsan oo ku saabsan taageerada.
Habka galvanization-ka kulul waa qorshe daaweyn dusha sare ee birta ah oo deggan oo la isku halleyn karo si looga hortago daxalka deegaanka. Waxaa jira arrimo badan oo saameeya galvanizing-ka kulul, sida halabuurka substrate-ka birta, xaaladda dibadda (sida qallafsanaanta), cadaadiska gudaha ee substrate-ka, iyo cabbirro dhowr ah. Inta lagu jiro hawshan, dhumucda substrate-ku waxay saameyn weyn ku leedahay dhumucda galvanizing-ka kulul. Guud ahaan, dhumucda saxanka ayaa sii weynaysa dhumucda galvanizing-ka kulul. Taageerada leh dhumucda 2.0mm ayaa tusaale ahaan loo qaatay si loo muujiyo inta dhumucda dahaarka zinc loo baahan yahay si loo daboolo baahiyaha nolosha adeegga daxalka deegaanka.
U qaado in dhumucda walaxda saldhigga taageerada ay tahay 2mm, sida waafaqsan heerka caadiga ah ee GBT13192-2002 galvanizing hot.
Waa maxay dhumucda lakabka galvanized ee tuubada laba jibbaaran ee galvanized loo baahan yahay si loo daboolo shuruudaha cimriga adeegga?
Tuubo laba jibbaaran oo la galvanized
Sida waafaqsan shuruudaha heerka qaranka, dhumucda walaxda saldhigga ah ee 2mm waa inaysan ka yaraan 45 μm. Dhumucda isku midka ah waa inaysan ka yaraan 55 μm. Sida laga soo xigtay natiijooyinka tijaabada soo-gaadhista jawiga oo ay samaysay Ururka Galvanizing Hot Dip ee Japan laga bilaabo 1964 ilaa 1974. Waa maxay dhumucda lakabka galvanized ee tuubada laba jibbaaran ee galvanized loo baahan yahay si loo daboolo shuruudaha cimriga adeegga?
Haddii loo xisaabiyo heerka qaranka, waxa ku jira zinc waa 55x7.2=396g/m2,
Nolosha adeegga ee laga heli karo afar deegaan oo kala duwan waxay ku saabsan tahay:
Aagga warshadaha culus: 8.91 sano, oo leh heerka daxalka sanadlaha ah ee 40.1;
Aagga xeebta: 32.67 sano, oo leh heerka daxalka sanadlaha ah ee 10.8;
Derbiyada: 66.33 sano, oo leh heer daxaleed oo sannadle ah oo ah 5.4;
Aagga magaalada: 20.79 sano, iyadoo heerka daxalka sanadlaha ah uu yahay 17.5
Haddii lagu xisaabiyo iyadoo loo eegayo cimriga adeegga sawir-qaadista ee 25 sano
Markaas taxanaha afarta aag waa ugu yaraan:
1002.5270135437.5, ie 139 μm, 37.5 μm, 18.75 μm, 60.76 μ m.
Sidaa darteed, qaybinta magaalooyinka, dhumucda dahaarka zinc waa inay noqotaa ugu yaraan 65 μ M waa macquul waana lagama maarmaan, laakiin meelaha warshadaha culus, gaar ahaan kuwa leh daxalka aashitada iyo alkali, waxaa lagu talinayaa in si habboon loogu daro dhumucda tuubada laba jibbaaran ee galvanized iyo dahaarka zinc.
Waqtiga boostada: Sebteembar-21-2022
