Galvalume Coil oo hore loo rinjiyeeyay, oo sidoo kale loo yaqaan Ppgl Coil ama Ppgl Steel Coil, waa agab muhiim u ah dhismaha darbiyada daahyada, guryaha qalabka, iyo gaadiidka silsiladda qabow. Iska caabbinta daxalka waxay saamaysaa nolosha adeegga badeecada, kharashka dayactirka, iyo badbaadada. Deegaannada adag sida meelaha badda iyo aagagga wasakhowga warshadaha, helitaanka siyaabo lagu xoojiyo iska caabbinta daxalka ee Ppgl Steel waa walaac weyn oo ka jira warshadaha. Maqaalkani wuxuu bixinayaa shan xeeladood oo waxtar leh oo ku salaysan isticmaalka dhabta ah ee adduunka.
I. Ka dhig Substrate-ka mid ka wanaagsan: Bilow Wanaagsan oo loogu talagalay Iska caabbinta Daxalka
Iska caabbinta daxalka ee Ppgl Steel waxay ku xiran tahay substrate-keeda, substrate-ka aluminized zinc-plated (Galvalume Coil).
1. Xakamee Dahaarka: Birta Ppgl ee Wanaagsan waxay u baahan tahay isku darka saxda ah ee aluminiumka (55%), zinc (43.4%), iyo siliconka (1.6%). Silicon wuxuu ka caawiyaa sameynta lakabka dahaarka wuxuuna joojiyaa lakabka zinc inuu diirmo. Dahaarka zinc-ka ee aluminiumka ah waa inuu ahaadaa ugu yaraan 120 g/m² (labada dhinacba). Meelaha xeebaha ee aadka u daxalaysan, waxay noqon kartaa in ka badan 150 g/m² si loo sameeyo lakab ilaalin oo adag.
2. Dooro Substrate Nadiif ah: Substrate-ka Birta Ppgl waa inuu leeyahay heerar hoose oo wasakh ah sida kaarboon iyo sulfur. Tani waxay yareysaa cilladaha yaryar waxayna joojineysaa daxalka inuu bilaabmo. Waxaa fiican in la isticmaalo substrate-ka zinc-ka aluminiumka ah ee buuxiya heerarka ASTM A792 si loo yareeyo khatarta daxalka.
II. Si Fiican U Daawee Dusha Sare: Hagaaji Ku-dhejinta Dahaadhka
Ku dhegganaanta gariiradda birta ah ee Galvalume ee la rinjiyeeyay waxay saamaysaa iska caabbinta miridhku. Daaweynta hore ee dusha sare aad ayay muhiim u tahay:
1. Ku Nadiifi Saddex Tallaabo: Substrate-ku waa inuu maraa dhaqidda alkaline si looga saaro saliidda, dhaqidda aashitada si looga saaro miridhku, iyo raacinta si loo dhexdhexaadiyo. Tani waxay hubineysaa in dusha sare ay nadiif tahay waxayna joojineysaa "daxalka isdhaafka ah" ee u dhexeeya dahaarka iyo substrate-ka.
2. Cusboonaysiinta Passivation: Isticmaal chromate passivation ama chromium - passivation bilaash ah (taas oo u fiican deegaanka). Tani waxay samaysaa filim passivation oo isku mid ah oo ku yaal substrate-ka Galvalume Steel Coil. Waxay ka caawisaa dahaarka inuu si fiican u dhego oo uu xannibo walxaha sunta ah.
3. Si Fiican u Qalaji: Ka dib marka la daaweeyo ka hor, si dhakhso ah u qalaji substrate-ka. Qoyaanka dusha sare ka dhig mid ka hooseeya 0.1% si looga hortago daxalka.

III. Dooro Dahaarka Saxda ah: Dhis Ilaalin Lakabyo Badan Leh
Dahaarka ayaa ah ilaalinta ugu weyn ee Coil Ppgl. Markaad dooranayso nidaamka dahaarka, ka fikir iska caabbinta cimilada, iska caabbinta kiimikada, iyo isku dhejinta:
1. Dooro Primer-ka: Epoxy primers waa kuwo wanaagsan sababtoo ah si fiican ayay u dhegaan waxayna xiraan walxaha sunta ah. Kiisaska baahida sare leh, isticmaal polyurethane primers si aad dahaarka uga dhigto mid dabacsan oo u adkaysta buufinta milixda.
2. Dooro jaakadda sare: Dooro dahaadh u adkaysta cimilada.
– Deegaannada caadiga ah: Jaakadaha sare ee polyester-ka ee u adkaysta cimilada sare waa doorasho wanaagsan. Si fiican ayay u adkaystaan ​​UV-ga iyo gabowga mana aha kuwo aad qaali u ah.
– Deegaannada adag (sida meelaha badda ama warshadaha): Dahaarka sare ee PVDF (polyvinylidene fluoride) ayaa ugu fiican. Aad bay u adkaystaan ​​cimilada iyo kiimikooyinka waxayna socon karaan in ka badan 20 sano.
3. Xakamee dhumucda dahaarka: Qalabka ugu muhiimsan waa inuu ahaadaa dhumucda 5 - 7μm, dahaarka sare waa inuu ahaadaa 15 - 20μm. Dhumucda dahaarka guud waa inay ahaataa ugu yaraan 25μm si looga fogaado dhibaatooyinka sida godadka biinanka.
IV. Raac Wax Soo Saar Wanaagsan iyo Rakibaad: Ka fogow Daxalka Khaladaadka
Xitaa Galvalume Coil oo tayo sare leh oo hore loo rinjiyeeyay wuxuu waayi karaa iska caabbinta daxalka haddii si khaldan loo farsameeyo:
1. Xakamee Habka Dahaarka: Isticmaal dahaarka duuban si aad dahaarka u simanaato. Heerkulka dahaarka ku hay 230 - 250℃ muddo 30 - 60 ilbiriqsi ah. Tani waxay ka hortageysaa in dahaarka uu aad u jabo.
2. Ilaali inta lagu jiro Rakibaadda:
– Ha xoqin dusha sare ee PPGL Coil. Isla markiiba xoq xoqidda rinji dayactir gaar ah leh.
– Ka tag kala-goysyada ballaarinta marka la rakibayo si loo joojiyo dahaarka inuu dillaaco sababtoo ah isbeddelka heerkulka.
– Meelaha xeebaha ama qoyan, isticmaal qalabka birta aan miridhku lahayn si aad uga fogaato daxalka ka yimaada biraha kala duwan.
V. Si joogto ah u ilaali: Ka dhig gariiradda mid sii jirta waqti dheer
Dayactirka joogtada ah wuxuu hoos u dhigi karaa daxalka, gaar ahaan Galvalume Steel Coil ee dibadda:
1. Si Badan U Nadiifi: Ku nadiifi gariiradda biyo ama saabuun dhexdhexaad ah ugu yaraan 1-2 jeer sannadkii. Tani waxay ka saartaa boodhka, milixda, iyo wasakhda kale ee sababi karta miridhku.
2. Si dhakhso ah u hagaaji burburka: Haddii ay jiraan wax xoqitaan ama dhaawac ah oo ku soo gaaray dahaarka, isla markiiba isticmaal rinji dayactir oo isku mid ah si aad uga hortagto walxaha daxalka ah inay gaaraan substrate-ka.
3. Ka go'doon Deegaanka: Si aad u hesho gariiradaha u dhow ilaha aashitada ama alkali ama badda agteeda, isticmaal xayndaabyo ilaalin ah ama dahaadh si aad u yareyso taabashada walxaha sunta ah.