Amaqela okuthenga kunye nobunjineli ajongene nesenzo esiqhubekayo sokulungelelanisa phakathi kwexesha elide lezinto eziphathekayo, imfezeko yesakhiwo, kunye neendleko zeyunithi. Ukukhetha intsimbi egqunywe ngendlela engeyiyo kunokukhokelela ekungaphumelelini kolwakhiwo kwangaphambi kwexesha, amabango ewaranti, okanye inkcitho eyinkunzi engekabikho ngaphambili. Ubume bemizi-mveliso kunye nemozulu embi kakhulu ifuna izixhobo ezikhethekileyo apho iinketho eziqhelekileyo zisilela. Ukucacisa i-substrate enganelanga ngokukhawuleza iphazamisa imvulophu yesakhiwo okanye icandelo lomatshini. Esi sikhokelo sidlula iinkcazo ezisisiseko ukubonelela ngovavanyo lobugcisa apho I-Galvalume Steel Coil isetyenziswe ngokufanelekileyo, apho ibeka imingcipheko yokuphunyezwa, kunye nendlela yokucacisa amabakala achanekileyo kwiiprojekthi zorhwebo. Uya kufunda iindlela ezichanekileyo zokukhangela eziyimfuneko ukuphepha ukusilela kwintsimi. Sikwaphonononga izakhono zolwakhiwo ukuqinisekisa ukuba ulwakhiwo lwakho olulandelayo luhlala luqinile kwaye luthobela.
Izinto eziphambili zokuThatha
Umgangatho we-55% we-aluminium, i-43.4% ye-zinc, kunye ne-1.6% ye-silicon yokwambathisa inikezela ngokuphindwe kabini ukuya kwezine ukuxhathisa ukubola kwentsimbi eqhelekileyo yentsimbi kwiindawo ezingathathi hlangothi.
Iziko lezicelo ezifanelekileyo kuphahla lwemozulu egqithileyo, ukugquma kwezakhiwo, kunye nemveliso yobushushu obuphezulu.
I-Galvalume ifuna isiqinisekiso esingqongqo sokusingqongileyo; ichaphazeleka kakhulu kukuwohloka ngokukhawuleza kwi-alkaline ephezulu (ikhonkrithi) okanye imeko yezolimo enzima (ammonia).
Uvavanyo lomthengisi kufuneka lubeke phambili ukuthotyelwa kwe-ASTM A792, iintsimbi zokwambathisa eziqinisekisiweyo (umz., AZ50, AZ55), kunye neemfuno zamandla esivuno esithe ngqo.
Ityala lobuGcisa: Kutheni uchaza iKhoyili yentsimbi yeGalvalume?
Ukwahlulwahlulwa kokwakheka
Iinjineli zihlala zixoxa ngokufaneleka kweendlela ezahlukeneyo zokugquma ngentsimbi. Kuya kufuneka uqonde ukwakheka kweekhemikhali ezicacileyo kwezi zixhobo ukwenza ukhetho lokuthenga olunolwazi. Ukuqulunqwa okuqhelekileyo kweGalvalume kuqukethe i-aluminium ye-55%, i-43.4% ye-zinc, kunye ne-silicon ye-1.6%. Lo mlinganiselo uthile utshintsha ngokusisiseko indlela intsimbi eziphatha ngayo kwiindawo eziyingozi. I-25% yemveli ye-Aluzinc ixhomekeke kumxholo we-aluminium ophantsi, obonelela ngokukhuselwa komqobo ophakathi kodwa uncama ukomelela kobushushu obuphezulu. Intsimbi esemgangathweni ye-galvanized ixhomekeke ngokupheleleyo kwi-100% yokugqoka i-zinc. Ukufakwa kwe-silicon ye-1.6% kumxube we-Galvalume we-55% kubalulekile. Ikhusela umaleko we-brittle intermetallic alloy ekubeni utyebe kakhulu ngexesha lenkqubo yokudipha eshushu. Oku kuqinisekisa ukuba intsimbi ihlala imile ngaphandle kwe-micro-cracking.
Uhlobo lokwaleka |
Ukuqamba |
Inkqubo yoKhuseleko oluphambili |
Ukunyamezela ubushushu obuphezulu |
IGalvalume (GL 55%) |
55% Al, 43.4% Zn, 1.6% Si |
Isithintelo sePassive + Umda wedini |
Kugqwesileyo (Ukuya kuma-315°C) |
IAuzinc (25%) |
25% Al, 75% Zn (malunga) |
Isithintelo esiPhakathi + Nomnikelo Owomeleleyo |
Kulungile |
Umgangatho oQinisekisiweyo |
I-100% yeZinc |
Umnikelo ngokusulungekileyo (iGalvanic) |
Imbi (Yehlisa isidima ngokukhawuleza) |
Umqobo kunye noKhuseleko lwedini
Indlela yokukhusela yale alloy ethile ixhomekeke kwindlela yokwenza izinto ezimbini. Icandelo le-aluminium lenza i-dense, i-passive oxide barrier ebusweni bentsimbi. Olu luhlu luthintela ngokufanelekileyo ukufuma kunye neoksijini ekufikeleleni kwi-substrate yensimbi engaphantsi. Ngexesha elifanayo, icandelo le-zinc libonelela ngokukhuselwa kombingelelo. Xa ikhoyili isikiwe, ikrwelwe, okanye ichetywe, i-zinc idla ngokutya kuqala. Ikhusela umgca wentsimbi eveziweyo ngokusebenzisa i-galvanic reaction. Sibona le ndibaniselwano igqithisa kakhulu i-zinc ecocekileyo yokugquma ngenxa yokuba umqobo we-aluminiyam wehlisa isantya sokuncipha kwe-zinc yombingelelo.
I-Thermal Reflectivity
Ulwakhiwo lwezoRhwebo lubeka phambili umba ophambili ekusebenzeni kakuhle kwe-thermal. Iimpawu zeGalvalume ezibonisa ubushushu obuphezulu, obudla ngokubizwa ngokuba yi-albedo ephezulu. Xa ukukhanya kwelanga kubetha imvulophu yesakhiwo, umgangatho wesinyithi ubonisa inxalenye ebalulekileyo yemitha yelanga. Le propathi ebonakalayo ichaphazela ngqo ukubalwa komthwalo weHVAC kumaziko amakhulu orhwebo. Iinjineli zinokuthoba izixhobo zokupholisa xa zisebenzisa ii-substrates zokuphahla ezibonisa kakhulu. Igcina amaqondo obushushu angaphakathi esezantsi esezantsi, inika ukonga amandla amakhulu ngeenyanga zasehlotyeni.
Uphawu-ukuya-Isiphumo
Unokudibanisa i-microstructure ekhethekileyo yokugqoka ngokuthe ngqo kwiziphumo ezibonakalayo ezibonakalayo. Uthungelwano oluthe kratya lwe-aluminium-rich dendrites kunye neendawo ezityebileyo ze-zinc zinciphisa kakhulu iindleko zokugcinwa kwe-lifecycle. Amaziko afuna ukulungiswa okumbalwa kolwakhiwo kunye ne-cosmetic touch-ups kwixesha labo lokusebenza. Oku kuhlala kuphezulu kwandisa ukubanakho kweewaranti ezongeziweyo kubasebenzisi bokuphela. Abavelisi banokunikezela ngokuzithemba iminyaka engama-20 ukuya kwiminyaka engama-40 yeziqinisekiso zokusebenza kwiindawo ezifanelekileyo ezingathathi hlangothi.
Ulwakhiwo olungundoqo kunye nezicelo zoYilo
Uphahla lwezoRhwebo kunye nezokuHlala
Iikontraka zithembele kakhulu i-galvalume yophahla lwekhoyili yeeprojekthi zolwakhiwo olufunayo. Nangona kunjalo, ukucacisa ubunzima obuchanekileyo bokugquma bumisela impumelelo yofakelo. Kwizicelo ezipeyintwe ngaphambili, imigangatho yoshishino igunyazisa ukutyunjwa kwe-AZ50. Oku kulingana ne 0.50 ounces yokwaleka ngonyawo lwesikwere kumacala omabini. Inkqubo yepeyinti ibonelela ngoluhlu olongezelelweyo lokukhusela, okwenza i-AZ50 yanele ngokugqibeleleyo. Ngokuchaseneyo, iipaneli zophahla ezingenanto okanye ezingapeyintwanga zifuna ukutyunjwa kwe-AZ55. I-coating ye-0.55-ounce eninzi ihlawulela ukungabikho kwefilimu yepeyinti yokukhusela.
Indlela yesicelo iphinda ichaze iiparameters eziphathekayo. Iiphaneli zomthungo ezimileyo zihlala zifuna intsimbi yokuqina okuphezulu (njengeBanga lama-80) ukuze zivule iipurlins ezivulekileyo ngaphandle kokuphambuka. Iiphaneli zezakhiwo, ezifakela phezu kophahla lweplanga oluqinileyo, ngokubanzi zisebenzisa amandla esivuno esisezantsi (njengeBanga lama-50). Oku kuvumela ukugoba okucocekileyo, okuqinileyo kwii-seams ngaphandle kwe-oyile-canning.
IiFacades zangaphandle kunye neSiding
Uyilo lwanamhlanje lwentengiso lusetyenziswa rhoqo udonga lwegalvalume kwizakhiwo zentsimbi ezenziwe ngobunjineli kwangaphambili (PEMBs). Isixhobo sinikezela ngobuhle, ubuhle beshishini kunye nokumelana nemozulu. Ukwandisa ubude bobuhle bobuhle, abathengi bahlala bejikela kwiiyantlukwano ezenziwe ngaphambili (PPGL). Ukupeyinta okuyimpumelelo kufuna ukunyangwa kweekhemikhali kwangaphambili kunye nomgangatho woxinzelelo. Ikhoyili kufuneka ilale ngokugqibeleleyo ngexesha lenkqubo yokugubungela. Iinqununu ezifanelekileyo ziqinisekisa ukuba i-topcoat ibambelela ngokuqinileyo ngaphandle kokuphazamisa i-aluminium-zinc substrate ephantsi. Ikhoyili elungiselelwe kakubi iya kuba namava okukhawuleza kwepeyinti ebaleni.
Amacandelo oLwakhiwo
Ngelixa ihlala ifihliwe emva kwe-drywall okanye i-cladding yangaphandle, isakhelo sesakhiwo sisebenzisa le mathiriyeli kakhulu. Iinjineli ziyicacisela ii-purlins, iigiti, kunye neenkqubo zokuhombisa. La malungu afihliweyo ajongana nokuvezwa kokufuma okwethutyana ukusuka kucondensation ngaphakathi kwimingxuma eludongeni. Uzinzo lwexesha elide luhlala lubalulekile apha kuba ulwakhiwo lwesakhelo luphantse lungenzeki ukufikelela okanye lutshintshwe emva kokugqitywa kolwakhiwo. Isithintelo se-aluminium-zinc siqinisekisa ukuba la mathambo angaphakathi ahlala engenamhlwa amashumi eminyaka.
UkuSetyenziswa kweCandelo lokuVelisa kunye noShishino
HVAC kunye neDuctwork
Iinkqubo zemishini yoshishino zisebenza phantsi koxinzelelo oluqhubekayo lwe-thermal. Uya kufumana rhoqo izicelo zentsimbi ye-aluzinc ngaphakathi kweenkqubo zokufudumeza kunye nokupholisa. Isici esibalaseleyo semathiriyeli kukukwazi ukumelana namaqondo obushushu aqhubekayo ukuya kuthi ga kwi-315 ° C (600 ° F) ngaphandle kokuthotywa kwesakhiwo okanye ukuguquguquka okukhulu. Intsimbi esemgangathweni iqala ukugqabhuka kwaye ingaphumeleli kwimigangatho yobushushu esezantsi kakhulu. Oku kwenza i-55% ye-aluminiyam ialloy ilungele ukutshintshiselana kobushushu, i-ductwork ye-industrial, kunye neendawo ezivaliweyo zebhoyila.
Ukwenziwa kwezixhobo zokusebenza (iiMpahla eziMhlophe)
Umzi-mveliso wezixhobo zombane unyanzelisa iimfuno ezingqongqo zokukhangela izinto ezisetyenziswa koomatshini bokuhlamba, iifriji, kunye nee-oveni. Abavelisi babhekisa kweli candelo njenge 'impahla emhlophe.' Ezi zixhobo zisebenza kwindawo ezinobumanzi obuphezulu kunye nokuvezwa rhoqo kweekhemikhali kwii-arhente zokucoca. I-substrate kufuneka ixhathise ukufuma okuqhubekayo ngelixa isamkela izithambiso ezikhazimlayo eziphezulu. I-microstructure elawulwa ngokuqinileyo ye-coating inika i-canvas efanelekileyo yokugcoba umgubo okanye umzobo omanzi. Ikhusela umhlwa orhubuluzayo ekujikelezeni imingxunya okanye imiphetho enesitampu.
Izithuthi kunye nezoThutho
Icandelo lezothutho lifuna izixhobo ezomeleleyo kwiindibano ezifihlakeleyo. Iinjineli zihlala zikhetha le alloy kwizinto ezingavezwanga emzimbeni kunye nezikhuselo zasekhaya zobushushu. Izithuthi zidibana nobutyobo obugqithisileyo bendlela, ukufuma, kunye neetyuwa zendlela. Ngaphaya koko, iinkqubo zokukhupha umoya zivelisa izixa ezikhulu zobushushu bendawo. I-substrate isebenza njengesithintelo esikhethekileyo se-thermal kunye ne-corrosion, ikhusela i-electronics enovakalelo kunye nekhabhinethi yabahambi ekukhupheni ubushushu obukhazimlayo.
Ukusetyenziswa kweMingcipheko: Xa *Ungasebenzisi* iGalvalume
Ukungaphumeleli kokusingqongileyo kwealkali
Nangona ukomelela kwayo okumangalisayo, le mathiriyeli inemida engqongqo. Kufuneka uvavanye ngokungafihlisiyo indawo yokusasazwa. Ukubeka le ngxube ngokuthe ngqo kwikhonkrithi emanzi okanye udaka kubangela ukungaphumeleli kwentlekele. Ikhonkrithi imele indawo enealkaline ephezulu enepH ephezulu. Le alkalinity inyibilika ngokukhawuleza i-aluminium passivation layer, ishiya intsimbi ingakhuselekanga ngokupheleleyo. Ngokufanayo, ungaze uyifake ngokuchasene namaplanga anyangweyo aqulethe izigcina-lwazi ezisekwe elubhedu. Ubhedu lusebenza njenge-cathode ngelixa i-aluminium-zinc yokugqoka isebenza njenge-anode. Oku kudala iseli yegalvanic endlongondlongo, ekhokelela ekudlekeni okukhawulezayo.
Ukuvalelwa kweZolimo
Izakhiwo zezolimo zibonisa enye inkangeleko yomngcipheko. Indawo ekuhlalwa kuyo imfuyo ivelisa izixa ezikhulu zenkunkuma yezilwanyana. Le nkunkuma ikhupha iqondo eliphezulu lomphunga we-ammonia emoyeni. I-ammonia ihlasela inxalenye ye-aluminium yengubo ngokukhawuleza. Kwizakhiwo zokuvalelwa kwezolimo, iileyiti ezinobunzima obuphezulu (ezifana ne-G90) okanye iintsimbi ezithile ezakhiwe nge-epoxy ezigqunywe nge-epoxy eziphezulu kakhulu zigqwesa kakhulu i-55% yealloyi ye-aluminiyam.
Eyona ndlela igqwesileyo yokusebenza: Soloko uphicotha iimeko zomoya wangaphakathi wesixhobo esicetywayo phambi kokuba uchaze isambatho sesinyithi.
Impazamo eqhelekileyo: Ukucinga ukuba 'i-premium' yokwambathisa isebenza jikelele kuwo onke amacandelo oshishino nezolimo.
Edge Creep Dynamics
Kufuneka ugcine ulindelo oluyinyani malunga nomhlwa osikiweyo. Xa ivenkile yokwenza izinto icheba ipaneli, iveza intsimbi ekrwada. Ngelixa i-zinc ejikelezayo izama ukukhusela lo mda ngokuzincama, inemida. Kwiindawo ezingaselunxwemeni ezinengxaki yokutshizwa kwetyuwa eninzi, ukutyhoboza kwenzeka ngokukhawuleza. Ityuwa ikhawuleza ukuchithwa kwe-galvanic ye-zinc. Ngezicelo zaselwandle kwimayile enye yonxweme, kufuneka ugunyazise imiphetho evalwe ngumzi-mveliso. Kungenjalo, cacisa uthotho oluzinikeleyo lwe-aluminiyam yodidi lwaselwandle kunemveliso yentsimbi egqunyiweyo.
Iikhrayitheriya zokuFumana kuMboneleli weKhoyili ye-Industrial Galvalume
Ukubekwa emgangathweni kunye nokuthotyelwa
Ulawulo lomgangatho luqala kwinqanaba lokuthenga. Kufuneka ufune Iingxelo zoVavanyo lweMill (MTRs) kwibhetshi nganye yentsimbi. La maxwebhu aqinisekisa ukuthotyelwa okungqongqo kwimigangatho ye-ASTM A792/A792M. I-MTR ichaza ngokuthe ngqo ukubunjwa kweekhemikhali zengubo kwaye iqinisekisa amandla okuvelisa ngomatshini wesiseko sentsimbi. Ukuba umthengisi uyathandabuza ukubonelela ngee-MTR ezinokulandeleka, yithathele ingqalelo njengento engafanelekiyo ngoko nangoko.
Ukuqhuba izakhono
Ukusebenzisana nomboneleli onobuchule kudlulela ngaphaya kokufumaneka kwezinto ezisisiseko. Ufuna i umboneleli we -coil ye-galvalume yemizi-mveliso eqhayisa ngokusetyenzwa kwangaphakathi kwendlu. Ukucheba ngokuchanekileyo, ukucheba, kunye nomgangatho wokuxinezeleka akuxoxiswana. Ukunqunyulwa okungalunganga kubangela uxinzelelo olukhulu, okukhokelela kwimiphetho yamaza okanye imiba ye-camber ngexesha lokwenziwa koluhlu. A ethembekileyo Umthengisi wekhoyili yegalvalume usebenzisa izixhobo ezichanekileyo zokunciphisa ukuguqulwa kwezinto ngaphambi kokuba isinyithi sishiye indawo yabo.
Uluhlu kunye namaxesha okuKhokela
Iingxaki zekhonkco lonikezelo ziphazamisa iishedyuli zokwakha kwaye zinyusa uhlahlo lwabiwo-mali. Kufuneka uvavanye uzinzo kwi-inventri yomthengisi wangaphakathi xa uthelekisa nokuxhomekeka kwabo ekuthengisweni kwempahla evela kumazwe angaphandle ngokuthe ngqo. Ngelixa iikhoyili ezisuka kumazwe angaphandle zinokubonelela ngexabiso eliphantsi ngaphambili, iindlela eziguquguqukayo zeenqanawa zizisa imingcipheko yexesha eliphambili engamkelekanga. Amaziko eenkonzo zoluhlu olufutshane agcina uluhlu olunzulu lwendawo yeegeyiji eziqhelekileyo kunye nobubanzi. Banikezela ngesantya esifunekayo ukuxhasa iiprojekthi zorhwebo ezikhawulezayo.
Coating Weight Verification
Ayizizo zonke iingubo ezilungele yonke indawo. Sekela ingqiqo yoluhlu lwakho olufutshane kwisakhono somboneleli sokuhlala enikezela ngeempawu ezithile zokwaleka ze-AZ. Ukuba iprojekthi yakho ihleli kwindawo ephakathi kwelizwe, iintsimbi ezisemgangathweni zanele. Nangona kunjalo, ukuba iprojekthi ifuna izicelo ezinzima ezingenanto, umthengisi kufuneka aqinisekise i-AZ55 okanye ukufumaneka okuphezulu. Qinisekisa iinkqubo zabo zophicotho-zincwadi lwangaphakathi ukuqinisekisa ukuba bazisa ubunzima bokugquma obuchazwe kwi-odolo yakho yokuthenga.
Ukuqukumbela
Ukuchaza ikhoyili yentsimbi yodidi lweshishini kufuna ulungelelwaniso olungqongqo lobuchwephesha. Kuya kufuneka ulungelelanise ubunzima bokugquma, amandla esiseko sesivuno, kunye nokunyamezelana kokusebenza ngokuchasene nokuvezwa kokusingqongileyo kwemveliso yokugqibela. Ukuqonda ubuthathaka kwimathiriyeli yealkaline kunye neammonia kuthintela ukusilela kwintsimi ebiza kakhulu. Ngalo lonke ixesha ulungelelanisa isicwangciso sakho sokuthenga kunye nemigangatho eqinisekisiweyo ye-ASTM kunye nekhonkco lokubonelela elithembekileyo.
Njengenyathelo elilandelayo eliqinisekileyo, cebisa amasebe okuthengayo ukuba acele imathiriyeli yesampulu ebonakalayo kunye neeMTR zangoku kumaziko anokubakho enkonzo. Qhuba ezi sampuli ngovavanyo lwasekhaya lokusingqongileyo kwaye uqinisekise ukuhambelana kwezixhobo kuluhlu lwabaqulunqi bakho ngaphambi kokuba uzibophelele kwiikhontrakthi ze-tonnage ezinkulu.
FAQ
Q: Nguwuphi umahluko phakathi kwe-AZ50 kunye ne-AZ55 yobunzima bokugquma?
A: Ubizo lubhekisa kubunzima bokutyaleka bubonke kwii-ounces ngonyawo lwesikwere kumacala omabini ekhoyili. I-AZ50 ithwala i-0.50 oz/sq ft kwaye ikumgangatho woshishino lwezicelo ezipeyintwe kwangaphambili. I-AZ55 ithwala i-0.55 oz/sq ft. I-AZ55 etyebileyo yokwambathisa igunyaziswe ukuba ingapeyintwanga, izicelo ezingenanto zokuqinisekisa ukuxhathisa kwemozulu yexesha elide.
Umbuzo: Ngaba i-coil yensimbi ye-Galvalume inokupeyintwa?
A: Ewe, iyamkela ngokulula ipeyinti, kodwa ifuna ukulungiswa okukhethekileyo. Ikhoyili kufuneka ifikelele kwinqanaba loxinzelelo ukuze iqinisekise ukuba mcaba ngokugqibeleleyo. Ngaphaya koko, ifuna unyango oluchanekileyo lwekhemikhali kunye neprimer ehambelanayo. Ngaphandle kwe-priming efanelekileyo, i-topcoat iya kusilela ukunamathela kwindawo egudileyo ye-aluminium-zinc, ekhokelela ekuqhameni ngokukhawuleza.
Umbuzo: Ubomi be-Galvalume buthelekiswa njani ne-G90 yensimbi ye-Galvanized?
A: Kwiindawo ezingathathi hlangothi ze-atmospheric, idatha yovavanyo oluqhelekileyo lwe-atmospheric ibonisa ukuba i-55% ye-aluminium alloy ithatha ixesha eliphindwe kabini ukuya kwezine ngaphezu kwemveliso ye-G90. I-aluminiyam idala umqobo ogqwesileyo we-passive ocothisa inkqubo yokuthotywa ngokuphawulekayo xa kuthelekiswa ne-zinc-based based coatings yedini.
IMPENDULO: Ukubunjwa okuqatha kunokuphazamisa ukugquma ukuba izikhokelo ezifanelekileyo zingahoywa. Ukongezwa kwe-silicon ye-1.6% kunceda ukugcina ukuguquguquka. Nangona kunjalo, ukugqithisa okucetyiswayo kwimida ye-bend radii kubangela ukuqhekeka kwe-micro-cracking kumphezulu wesinyithi. Abafaki-mpahla kufuneka bahloniphe ubuncinci bemiqobo yokugoba kwaye basebenzise izithambisi ezifanelekileyo zokuzoba ukukhusela ukugquma xa kugximfizwa kakhulu.
