Kwizicelo ezichanekileyo ezifana nemvulophu yokwakha, ukwenziwa kwezixhobo zasekhaya, kunye nezixhobo zentsimbi ebandayo, uzinzo olulinganayo lwekhoyili yentsimbi ye-galvalume (ekwaziwa ngokuba yi-coil Gl) luchaphazela ngokuthe ngqo ukuchaneka kokufakwa kunye nemveliso egqityiweyo. Nokuba abathengi bakhetha iimveliso ze-galvalume ezithengiswayo okanye ababoneleli bekhoyili ye-galvalume baphucula imveliso, kubalulekile ukuqonda ukuba uzinzo olulinganayo aluyongozi, kodwa lubangelwa kulawulo oluchanekileyo kuyo yonke inkqubo, ukusuka kunyango lwangaphambi kwe-substrate kunye ne-hot-dip galvanizing ukuya ekupholiseni nasekugqibeni. Njengomthengisi omkhulu wehlabathi, iinkampani eziphambili zekhoyili ye-galvalume eTshayina sele zifikelele kumanqanaba aphambili kushishino olawulo lokunyamezela olulinganayo lweekhoyili zentsimbi ze-galvalume eziphambili ngokuphucula inkqubo.
I. Iikhrayitheriya eziphambili zozinzo lwemilinganiselo
Ngokubai-galvalume yesinyithi, uzinzo olunemilinganiselo lubonakala kakhulu kwiimilinganiselo ezintathu, ezikwangumahluko ophambili phakathi kweekhoyili zentsimbi zePrime galvalume kunye neemveliso eziqhelekileyo:
*Ukuphambuka kwiMilo yeShiti: Ukugoba ≤ 3mm/m kwimeko ethe tyaba, ngaphandle kokugoba okucacileyo okanye ukugoba ecaleni;
*Ukunyamezelana koBukhulu: Ukuphambuka kobukhulu bezinto ezisisiseko ≤ ± 0.05mm, ukuphambuka kobukhulu bokugquma ≤ 10%;
*Uzinzo lweThermal: Emva konyango oluphezulu kwi-200℃ kangangeeyure ezi-2, ukuguquguquka kobukhulu ≤ 0.1%, ukuhlangabezana neemfuno zokunyathela okulandelayo, ukugoba, kunye nokunye ukucutshungulwa.
Ezi zikhombisi zimisela ngokuthe ngqo ukulungelelaniswa kwe-galvalume steel coil ekudibaniseni, ekufakeni, nasekuchwethezeni ngokuchanekileyo, kwaye zezona zinto zibalulekileyo ekufuneka ziqwalaselwe xa kuthengwa iimveliso ze-galvalume zokuthengisa.

II. Impembelelo yeenkqubo ezine zemveliso eziphambili kukuzinza kobukhulu
1. Unyango lwangaphambi kwe-Substrate: "Isiqinisekiso esiSiseko" soZinzo oluLungileyo
Umgangatho wesiseko se-substrateikhoyili yentsimbi yegalvalumeIchaphazela ngokuthe ngqo ukusebenza komlinganiselo wokugqibela. Iinkqubo eziphambili ziquka ukucola kunye nokulungisa:
*Inkqubo yokuPickling: Ukuba ixesha lokuPickling lide kakhulu okanye uxinano lwe-asidi luphezulu kakhulu, kuya kukhokelela ekuboleni okugqithisileyo komphezulu we-substrate, okuya kubangela ngokulula ukushwabana kwendawo okungalinganiyo kunye nokugoba ngexesha lokuphola okulandelayo emva kokuplata. Ngokwahlukileyo koko, ukuPickling okungaphelelanga kuya kushiya isikali se-oxide, okuya kubangela ukunamathela okungalunganga kwe-coating kwaye kuchaphazele ngokungathanga ngqo uzinzo lobukhulu. Iikhoyili zentsimbi ze-Prime galvalume zihlala zisebenzisa inkqubo "yokuPickling enganzulu + ukuxubha kwi-intanethi", zilawula ngokuchanekileyo uxinano lwe-asidi (18-22%) kunye nexesha lonyango (30-40s) ukuthintela umonakalo we-substrate.
*Inkqubo Yokulungisa: Ngaphambi kokungena kwimbiza yokulungisa i-galvanizing, i-substrate kufuneka ilungiswe nge-multi-roller straightener ukuze kupheliswe uxinzelelo lokuqengqeleka. Ukuba umsantsa we-straightening roll awulungiswanga ngokulinganayo, kuya kukhokelela ekungalinganini kokusasazwa koxinzelelo lwangaphakathi lwe-substrate, nto leyo ekhokelela "ekugobeni kwe-springback" ngexesha lokupholisa emva kokufakelwa. Abathengisi abakumgangatho ophezulu be-galvalume coil eTshayina basebenzisa kakhulu izixhobo zokulungisa ze-CNC ukujonga ukuba i-substrate ithambile ngexesha langempela, ukuqinisekisa ukuphambuka kwe-≤0.5mm/m emva kokulungiswa.
2. Inkqubo Yokugquma Ngokushushu: "Ibhalansi Echanekileyo" yoBushushu kunye nesantya
I-hot-dip coating yeyona nto iphambili ekwenzeni i-coating ye-metal galvalume. Iiparamitha zayo zenkqubo zichaphazela ngokuthe ngqo ukufana kobukhulu be-coating kunye ne-substrate deformation: Ulawulo lobushushu be-Zinc pot: Ubushushu obuqhelekileyo be-hot-dip coating yi-600-620℃. Ukuba ukuguquguquka kobushushu kudlula i-±5℃, kuya kukhokelela kwi-reaction ye-alloying engalinganiyo ye-coating, nto leyo ebangela iziphene ezifana "nee-edges ezixineneyo" kunye "ne-substrate eveziweyo," ngaloo ndlela ichaphazela ukunyamezela kobukhulu be-coil. Uhlengahlengiso lwesantya se-strip: Isantya sokusebenza kwe-strip kufuneka sihambelane nesantya sokunamathela kwe-coating (ngesiqhelo yi-10-15m/min). Isantya esiphezulu kakhulu sinokukhokelela kwi-coating encinci nengalinganiyo, ngelixa isantya esiphantsi kakhulu siya kubangela i-coating exineneyo kakhulu kunye ne-overheating ye-substrate. Imigca yemveliso ye-Prime galvalume steel coils ixhotyiswe ngomlinganiselo wobushushu be-infrared kunye neenkqubo zolawulo lwe-closed-loop speed ukuqinisekisa uzinzo lwe-parameter.
3. Inkqubo Yokupholisa: Inyathelo Eliphambili Ekuthinteleni Ukuguquka Kwesimo
Ukupholisa ngokukhawuleza emva kokusebenzisa i-galvanizing eshushu kubalulekile ekuthinteleni ukuguquguquka kobushushu be-coil yentsimbi ye-galvalume. Ukuba kusetyenziswa ukupholisa kwendalo, umahluko kwii-coefficients zokwandiswa kobushushu phakathi kwe-substrate kunye ne-coating (intsimbi: 11.5 × 10⁻⁶/℃, i-aluminium-zinc alloy: 23 × 10⁻⁶/℃) kuya kuvelisa uxinzelelo olukhulu lobushushu, okukhokelela ekujikeni kwe-coil kunye nokujiya okugqithisileyo. Ababoneleli be-coil ye-galvalume esemgangathweni ophezulu basebenzisa inkqubo yokupholisa ehlukeneyo: okokuqala, ukupholisa umoya kunciphisa ubushushu ukuya kwi-300℃, emva koko ukupholisa ngamanzi athomized kuyawunciphisa ukuya kubushushu begumbi, kunye nesantya sokupholisa silawulwa kwi-15-20℃/s, oku kunciphisa ngempumelelo uxinzelelo lobushushu. Ababoneleli be-coil ye-galvalume abaphambili eTshayina bangenise iinkqubo zokupholisa ezikrelekrele ezilungisa ubunzulu bokupholisa ngexesha langempela ngokusekelwe kubukhulu be-strip ukuqinisekisa uzinzo olulinganayo.
4. Inkqubo yokugqiba: Ukulinganisa ngokuchanekileyo ubukhulu bokugqibela
Ukugqitywa emva kokubeka ipleyiti kumisela ngokuthe ngqo ukuchaneka kobukhului-coil galvalumeIinkqubo eziphambili ziquka amanyathelo amabini: ukolula uxinezeleko kunye nokusika imiphetho. Ukolula Uxinezeleko: Kusetyenziswa izinga loxinzelelo lwe-1-2% kusetyenziswa umatshini wokolula uxinezeleko ukususa uxinzelelo olushiyekileyo ngaphakathi kwikhoyili kunye nokulungisa ukugoba okuncinci, ukuqinisekisa ukuba iphepha lifikelela kumgangatho othe tyaba. Ukolula Umphetho: Umatshini wokolula umphetho we-CNC usetyenziselwa ukulawula ngokuchanekileyo ukunyamezelana kobubanzi bekhoyili (ukuphambuka ≤ ±2mm), ukuthintela ubunzima ekufakweni okulandelayo kunye nokudityaniswa ngenxa yemiphetho engalinganiyo. Inkqubo yokugqiba iikhoyili zentsimbi zePrime galvalume ikwabandakanya nokuhlolwa kobukhulu be-intanethi; iimveliso ezineziphene zibuyiselwa ngqo ukuze ziphinde zisetyenziswe.
III. Ukuthengwa kunye nokukhethwa: Ungawujonga njani uzinzo olulinganayo ngenkqubo?
Kwiinkampani ezithenga iimveliso ze-galvalume ezithengiswayo, la manqaku mathathu alandelayo angasetyenziselwa ukuvavanya iimveliso ezisemgangathweni ophezulu: Cela iingxelo zeparameter zenkqubo ezivela kubaboneleli be-galvalume coil, ugxile kwizalathisi eziphambili ezifana nokuchaneka kokulungisa i-substrate, uluhlu lokuguquguquka kobushushu be-zinc pot, kunye nendlela yokupholisa; Beka phambili ii-Prime galvalume steel coils, njengoko inkqubo yazo yemveliso isebenzisa ulawulo oluzenzekelayo ngokupheleleyo, ukuqinisekisa ukunyamezelana okungcono kobukhulu; Nika ingqalelo kwiziqinisekiso zababoneleli be-galvalume coil china. Ababoneleli abaphambili badla ngokuba nezixhobo zokuvavanya ngokuchanekileyo (ezifana neegeyiji zobukhulu be-laser kunye nezixhobo zokulinganisa iimilo) kwaye banokubonelela ngeengxelo zokuhlola zobukhulu bomntu wesithathu.
Uzinzo olunobukhulu be-galvalume yesinyithi sisiphumo "solawulo lwenqanaba le-millimeter" kwinkqubo yemveliso. Ukusuka kunyango lwangaphambi kwe-substrate ukuya ekugqityweni nasekuthunyelweni, ukuphambuka kweparameter kwinqanaba ngalinye kunokuchaphazela umgangatho wokugqibela. Kubaboneleli be-galvalume coil, ukuphuculwa kwenkqubo kubalulekile ekuphuculeni ukhuphiswano lwemveliso; kubathengi, ukuqonda ubudlelwane phakathi kwenkqubo kunye nozinzo olunobukhulu kubalulekile ekukhetheni ngokuchanekileyo i-galvalume steel coil ehlangabezana neemfuno zabo. Kwixesha elizayo, ngokuphindaphinda kwetekhnoloji kweshishini le-galvalume coil laseTshayina, uzinzo olunobukhulu luya kuba yileyibhile ephambili eyahlula iimveliso ezikumgangatho ophezulu kwiimveliso eziqhelekileyo, nto leyo eqhuba ukusetyenziswa kwe-metal galvalume kwiimeko ezichanekileyo ngakumbi.