Kwimiba yokuhombisa izakhiwo kunye nemveliso yemizi-mveliso, iikhoyili ze-aluminium ezinemibala ziye zaba yindlela ekhethwayo kunezixhobo zemveli ngenxa yokusebenza kwazo okugqwesileyo kunye neendidi ezahlukeneyo. Olu hlobo lwekhoyili, olusekelwe kwi-alloy ye-aluminium kwaye luphathwe ngemibala kunye nokwaleka komphezulu, lugcina iingenelo ze-aluminium.—ilula kwaye ayimelani nokugqwala—ngelixa ikwanikwe ubuhle obutyebileyo kunye nokusebenza ngokucwangciswa, nto leyo eyenza ukuba isetyenziswe kakhulu kumashishini ahlukeneyo.
Izinto ezisisiseko zeekhoyili ze-aluminium ezinemibala ikakhulu zii-alloys ze-aluminium ze-1-series, 3-series, kunye ne-5-series. Umahluko kwiimpawu zoluhlu olwahlukeneyo lwezinto ezisisiseko uchaphazela ngokuthe ngqo iimeko ezifanelekileyo:
I-aluminium ecocekileyo yochungechunge olu-1 (eqhele ukuba yi-1060): Inkqubo elula yokuvelisa, ixabiso liphantsi, kodwa izinto zithambile, zifanelekile kwiimeko eziqhelekileyo ezineemfuno eziphantsi zokuqina (ezifana nokufakelwa kwepayipi, iibhodi zentengiso), ezibonelela ngexabiso elifanelekileyo.
Ii-alloy ze-aluminium-manganese ze-3-series (ezidla ngokuba yi-3003/3004): I-3003 iqulethe i-1.0-1.5% ye-manganese, enika ukumelana okuhle nokugqwala. Ubulukhuni bayo kunye namandla okutsalwa kwayo angaphezulu kunee-alloy ze-1-series, nto leyo eyenza ukuba ibe yeyona nto isetyenziswa kakhulu kwisiseko. I-3004 iqulethe i-0.8-1.3% ye-magnesium eyongezelelweyo (ekwaziwa ngokuba yi-aluminium-magnesium-manganese alloy), nto leyo ebangela ukuba ibe namandla aphezulu kwaye ifaneleke ukwakha uphahla oluneemfuno eziphezulu zokuqina kwesakhiwo. Ixabiso layo liphezulu kancinci kune-3003.
Ii-alloy ze-aluminium-magnesium ze-5-series (ezidla ngokuba yi-5052): Ezi alloy ziqulathe i-3-5% ye-magnesium, zinobunzima obuphantsi, amandla aphezulu okutsalwa, kwaye zikhaphukhaphu. Zibiza kakhulu kwaye ngamanye amaxesha zisetyenziswa kwimveliso yeekhoyili ze-aluminium ezinemibala ephezulu, ekuqaleni zisetyenziswa kakhulu kwicandelo leenqwelo moya.
Ukugquma “ngumphefumlo ophambili” weekhoyili ze-aluminium ezigqunywe ngombala. Izakhiwo ezahlukeneyo zokugquma kunye neenkqubo zimisela isiphumo sombala wemveliso, ukumelana nemozulu, kunye neempawu zokusebenza. Okwangoku, inkqubo yokugquma ephambili “ziingubo ezimbini kunye neebhaki ezimbini,” kunye neemveliso ezithile eziphezulu ezisebenzisa “iingubo ezintathu kunye neebhaki ezintathu.” Isakhiwo esithile siqulathe iileya ezintathu ukusuka ngaphakathi ukuya ngaphandle: Umaleko wangaphambi konyango: “Umqobo okhuselayo ongaphantsi.” Ifilimu ye-oxide exineneyo, malunga ne-5-10 nm ubukhulu, yenziwa kumphezulu we-aluminium substrate ngokusebenzisa i-chromating okanye i-chromium-free passivation. Oku kuphucula ukunamathelana phakathi kwe-substrate kunye ne-coating, kuthintela ukuxobuka kwe-coating, kwaye kuphucula ukumelana nokugqwala ngokubanzi, kubeka isiseko seengubo ezilandelayo.
Umaleko wePrimer: “IsiXhobo esiPhakathi kunye noMaleko oKhuselayo.” I-Epoxy okanye i-polyester resin isetyenziswa njenge-primer, malunga ne-5-10μubukhulu bayo buyi-m. Umsebenzi wayo ophambili kukuphucula ukunamathela kunye nokuthintela umswakama wangaphandle kunye neoksijini ekufikeleleni kwisiseko, ukuphucula ukumelana nokugqwala. Umbala weprimer ungalungiswa ngokweemfuno ze-topcoat ukuqinisekisa umbala wokugqibela ofanayo noqaqambileyo.
Umaleko weTopcoat: “Umaleko oPhambili oBuhle noSebenzayo.” Iintlobo ezahlukeneyo zetopcoat zikhethwa ngokweemfuno zesicelo, malunga ne-15-25μubukhulu bayo buziimitha ezi-4. Iindidi ze-topcoat eziqhelekileyo ziquka: Ipeyinti yeFluorocarbon (PVDF): “Ukumkani Wokuqina Kwangaphandle.” Yenziwe nge-polyvinylidene fluoride resin, ineempawu ezibalaseleyo zokumelana ne-UV kunye nokulwa nokwaluphala. Ngaphakathi kobubanzi bobushushu obuyi--40℃ukuya kwi-150℃, umbala awupheli kwaye upende awuqhekezi. Ikwanazo neempawu ezizicocayo; amanzi emvula anokususa uthuli lomphezulu ngokulula, nto leyo eyenza ukuba ifaneleke ukusetyenziswa ixesha elide njengodonga lwezakhiwo zangaphandle kunye neendonga zamakhethini angaphandle. Ixesha lopende linokufikelela kwiminyaka engaphezu kwama-20.
Ipeyinti yePolyester (PE): “Ukhetho olungabizi kakhulu.” Ixabiso liphantsi ngama-40%-50% kunepeyinti ye-fluorocarbon. Nangona ukusebenza kwayo okulwa nokwaluphala kungalunganga njengepeyinti ye-fluorocarbon, isenokuqinisekisa ubomi benkonzo beminyaka eli-10-15 kwiindawo ezinemozulu engaqhelekanga (ezifana neCentral neSouthern China). Ikwabonelela ngemibala eyahlukeneyo, kuquka i-matte eyenziwe ngokwezifiso, i-high-gloss, kunye ne-metallic finishes, efanelekileyo kwi-external exterior, ii-casings zezixhobo, kunye nee-inside ceiling.
Ipeyinti yepolyester eguqulwe yisilicone (SMP): “Ukhetho lokusebenza olulungeleleneyo.” Ukudibanisa ukusebenza kakuhle kwepeyinti yepolyester kunye nokumelana nemozulu kwepeyinti ye-fluorocarbon, inika ukumelana okuphezulu kwe-UV xa kuthelekiswa nepeyinti yepolyester eqhelekileyo, iyazingca ngeminyaka eli-12-18, kwaye ibiza kancinci kunepeyinti ye-fluorocarbon. Oku kuyenza ifaneleke kwiiprojekthi ezineemfuno ezithile zokumelana nemozulu kodwa zinohlahlo-lwabiwo mali olulinganiselweyo, njengee-eaves zezakhiwo zorhwebo kunye nee-canopies zesitishi sepetroli.
Ngokuqhubela phambili okuqhubekayo kubuchwepheshe bezinto, iikhoyili ze-aluminium ezifakwe umbala ziya kuphuhlisa zibe nobuhlobo ngakumbi nokusingqongileyo, ukusebenza ngakumbi, kunye nokwenza ngokwezifiso ngakumbi. Kwelinye icala, iikhoyili ezinobuhlobo nokusingqongileyo (ezifana neekhoyili ezingenayo i-chromium kunye neepeyinti ezisekelwe emanzini) ziya kuthatha indawo yeekhoyili zemveli kancinci kancinci, zinciphise impembelelo yokusingqongileyo. Kwelinye icala, iikhoyili ze-aluminium ezifakwe umbala ezinemisebenzi ekhethekileyo, efana neekhoyili ezilwa neentsholongwane, ezithintela umlilo, kunye neziphilisa ngokwazo, ziya kuqhubeka zivela, zihlangabezana neemfuno zeemeko ezikhethekileyo ngakumbi. Kwangaxeshanye, iinkonzo zokwenza ngokwezifiso ezenzelwe wena ziya kuba zibanzi ngakumbi, zivumela imibala kunye nokuthungwa ngokwezifiso ngokweemfuno zomsebenzisi, zikwandise ngakumbi ububanzi bokusetyenziswa kweekhoyili ze-aluminium ezifakwe umbala.
Ixesha leposi: Meyi-29-2026
