I-steel grating inezinzuzo zokonga insimbi, ukumelana nokugqwala, ukwakhiwa okusheshayo, kucocekile nokuhle, okungashibiliki, ukungena komoya, awekho amazinyo, akukho ukunqwabelana kwamanzi, akukho ukunqwabelana kothuli, ukunakekelwa, nempilo yesevisi yeminyaka engaphezu kwengu-30. Iya ngokuya isetshenziswa kabanzi ngamayunithi wokwakha. Ubuso be-steel grating buyaphathwa, futhi kuphela ngemva kokwelashwa okukhethekile lapho impilo yayo yesevisi ingandiswa. Izimo zokusebenzisa igridi yensimbi emabhizinisini ezimboni ngokuvamile avulekile noma ezindaweni ezinokugqwala komkhathi nokuphakathi. Ngakho-ke, ukwelashwa okungaphezulu kwe-steel grating kubaluleke kakhulu empilweni yesevisi ye-steel grating. Okulandelayo kwethula izindlela ezimbalwa ezijwayelekile zokwelashwa kwendawo yegridi yensimbi.
(1) I-Hot-dip galvanizing: I-Hot-dip galvanizing iwukucwilisa igridi yensimbi ekhishwa ukugqwala oketshezini oluncibilikisiwe lwezinki olushisa kakhulu okushisa cishe okungama-600℃, ukuze ungqimba lwezinc lunamathiselwe endaweni yensimbi yensimbi. Ugqinsi longqimba lwezinc akumele lube ngaphansi kuka-65um kumapuleti amancane angaphansi kuka-5mm, futhi angabi ngaphansi kuka-86um kumapuleti awugqinsi. Ngaleyo ndlela ukufeza inhloso yokuvimbela ukugqwala. Izinzuzo zale ndlela ukuhlala isikhathi eside, izinga eliphezulu lokuthuthuka kwezimboni zokukhiqiza, kanye nekhwalithi ezinzile. Ngakho-ke, isetshenziswa kabanzi kumaphrojekthi we-steel grating angaphandle adliwe kakhulu umkhathi futhi okunzima ukuwagcina. Isinyathelo sokuqala se-hot-dip galvanizing ukususwa nokugqwala, okulandelwa ukuhlanza. Ukungapheleli kwalezi zinyathelo ezimbili kuzoshiya izingozi ezifihliwe zokuvikela ukugqwala. Ngakho-ke, kufanele ziphathwe ngokucophelela.
(2) I-aluminiyamu efuthwe ngokushisayo (izinc) yenhlanganisela yenhlanganisela: Lena indlela yesikhathi eside yokuvikela ukugqwala enomphumela wokuvikela ukugqwala ofanayo nowokwenza idiphu elishisayo. Indlela eqondile iwukuba uqale ngokuqhumisa isihlabathi ingaphezulu legridi yensimbi ukuze kukhishwe ukugqwala, ukuze indawo engaphezulu iveze ukucwebezela kwensimbi kanye nokuhwaqamuka. Bese usebenzisa ilangabi le-acetylene-oksijeni ukuze uncibilikise intambo ye-aluminium (zinc) ehlale ilethwa, bese uyifutha phezu kwegridi yensimbi enomoya ocindezelwe ukuze wenze isifutho se-aluminiyamu yoju (izinc) (ukuqina okungaba ngu-80um~100um). Okokugcina, gcwalisa ama-capillaries ngezingubo ezifana ne-cyclopentane resin noma upende werabha we-urethane ukuze wenze ukuhlanganiswa okuhlanganisiwe. Inzuzo yale nqubo ukuthi inokuguquguquka okunamandla ubukhulu bensimbi yensimbi, futhi ukuma nobukhulu bensimbi yensimbi cishe akuvinjelwe. Enye inzuzo ukuthi umthelela oshisayo wale nqubo uyindawo futhi uvinjelwe, ngakho-ke ngeke kubangele ukuguqulwa kokushisa. Uma kuqhathaniswa nokufaka usawoti oshisayo wensimbi yensimbi, le ndlela inezinga eliphansi lokuthuthuka kwezimboni, futhi amandla okusebenza okuqhunyiswa kwesihlabathi nokuqhunyiswa kwe-aluminium (zinc) aphakeme. Izinga liphinde lithinteke kalula ngokushintsha kwesimo se-opharetha.
(3) Indlela yokumboza: Ukumelana nokugqwala kwendlela yokumboza ngokuvamile akukuhle njengendlela yokumelana nokugqwala yesikhathi eside. Inezindleko zesikhathi esisodwa eziphansi, kodwa izindleko zokuyilungisa ziphezulu uma isetshenziswa ngaphandle. Isinyathelo sokuqala sendlela yokumboza ukususwa kokugqwala. Izembatho zekhwalithi ephezulu zithembele ekususeni ukugqwala okuphelele. Ngakho-ke, izimbozo ezidingeka kakhulu ngokuvamile zisebenzisa i-sandblasting kanye nokudubula kwesibhamu ukuze kususwe ukugqwala, kwembule ukucwebezela kwensimbi, futhi kususe konke ukugqwala namafutha. Ukukhethwa kokugqoka kufanele kucabangele indawo ezungezile. Izembatho ezihlukene zinokubekezelelana okuhlukile ezimweni ezihlukene zokugqwala. Izingubo zokugqoka ngokuvamile zihlukaniswa zibe iziqalo (izingqimba) kanye namajazi angaphezulu (izingqimba). Iziqalo ziqukethe impushana eningi kanye nezinto eziyisisekelo ezincane. Ifilimu ilukhuni, inokunamathela okuqinile ensimbi, futhi inokuxhumana okuhle namajazi angaphezulu. Amajazi aphezulu anezinto eziningi eziyisisekelo, anamafilimu acwebezelayo, angavikela ama-primers ekugqwaleni komkhathi, futhi angamelana nesimo sezulu. Kunenkinga yokuhambisana phakathi kwezingubo ezihlukene. Uma ukhetha izigqoko ezihlukene ngaphambi nangemva kwalokho, qaphela ukuhambisana kwazo. Ukwakhiwa kokumboza kufanele kube nezinga lokushisa elifanele (phakathi kuka-5 ~ 38℃) kanye nomswakama (umswakama ohlobene ungabi ngaphezu kwama-85%). Indawo yokwakha yokumboza kufanele ibe nothuli oluncane futhi akufanele kube khona ukufingqa ebusweni bengxenye. Akufanele kube nemvula phakathi namahora angu-4 ngemva kokumbozwa. I-coating ngokuvamile isetshenziswa izikhathi ezingu-4-5. Ingqikithi yefilimu kapende owomile ingu-150um wamaphrojekthi angaphandle kanye ne-125um yamaphrojekthi angaphakathi, ngokuchezuka okuvunyelwe okungu-25um.
Isikhathi sokuthumela: Jun-05-2024