Kuyaziwa kahle ukuthi ikhwalithiamashubhu ayisikwele nangunxande ahlanganisiwekanye nendlela yokufaka ithinta ngqo ukuzinza kwezakhiwo zensimbi.
Njengamanje, izinto zokusekela emakethe ikakhulukazi ziyinsimbi yekhabhoni. Izinto zokusetshenziswa zensimbi yekhabhoni ngokuvamile ziyi-Q235 kanye ne-Q345, eziphathwa nge-hot galvanizing. Ukusekela kwenziwa nge-strip steel coil ngokusebenzisa ukugoba okubandayo, ukushisela, i-hot galvanizing kanye nezinye izinqubo. Ngokuvamile, ukujiya kufanele kube ngaphezu kuka-2mm, futhi ikakhulukazi kwezinye izindawo ezisogwini, eziphakeme kanye nezinye izindawo ezinomoya, kunconywa ukuthi ukujiya akufanele kube ngaphansi kuka-2.5mm, ngaphandle kwalokho kunengozi yokudabuka endaweni yokuxhuma insimbi.
Ezakhiweni ezinkulu,amapayipi ayisikwele nangunxande ensimbi yekhabhoni aqinisiwe, kufanele kufinyelelwe ubukhulu obungakanani be-zinc coating ukuze kuhlangatshezwane nezidingo zokuphila kwenkonzo yokugqwala kwemvelo?
Njengoba sonke sazi, ukujiya kwe-hot-dip galvanizing kuyikhwalithi ebalulekile kanye nenkomba yobuchwephesheipayipi lesikwele elenziwe nge-galvanized, okuhlobene nokuphepha nokuqina kwesakhiwo. Nakuba kunezindinganiso zikazwelonke nezobungcweti, ubukhulu obungafaneleki be-zinc coating bokusekela kuseyinkinga yobuchwepheshe esakazekile yokusekela.
Inqubo ye-hot-dip galvanizing iwuhlelo lokwelapha ubuso bensimbi oluzinzile noluthembekile lokumelana nokugqwala kwemvelo. Kunezici eziningi ezithinta i-hot-dip galvanizing, njengokwakheka kwe-substrate yensimbi, isimo sangaphandle (njengokulukhuni), ukucindezeleka kwangaphakathi kwe-substrate, kanye nosayizi abaningana. Phakathi nale nqubo, ukujiya kwe-substrate kunomthelela omkhulu ekujiyeni kwe-hot-dip galvanizing. Ngokuvamile, uma ipuleti lijiyile, kulapho ukujiya kwe-hot-dip galvanizing kukhulu khona. Ukusekelwa okunobukhulu obungu-2.0mm kuthathwa njengesibonelo ukubonisa ukuthi kungakanani ukujiya kwe-zinc coating okudingekayo ukuze kwaneliswe izidingo zokuphila kwenkonzo yokugqwala kwemvelo.
Ake sithi ubukhulu besisekelo sokusekela bungu-2mm, ngokwezinga elijwayelekile le-GBT13192-2002 hot galvanizing.
Bungakanani ubukhulu bengqimba yepayipi eliyisikwele elihlanganisiwe elidingekayo ukuze kuhlangatshezwane nezidingo zesikhathi senkonzo?
Ipayipi lesikwele elihlanganisiwe
Ngokwezidingo zezinga likazwelonke, ubukhulu bezinto eziyisisekelo ezingu-2mm akufanele bube ngaphansi kuka-45 μ m. Ubukhulu obufanayo akufanele bube ngaphansi kuka-55 μ m. Ngokwemiphumela yokuhlolwa kokuchayeka emoyeni okwenziwe yi-Japanese Hot Dip Galvanizing Association kusukela ngo-1964 kuya ku-1974. Buyini ubukhulu bengqimba ye-galvanized yepayipi lesikwele le-galvanized edingekayo ukuze kuhlangatshezwane nezidingo zokuphila kwenkonzo?
Uma kubalwa ngokwezinga likazwelonke, okuqukethwe yi-zinc kungu-55x7.2=396g/m2,
Isikhathi sesevisi esitholakala ezindaweni ezine ezahlukene simayelana nalokhu:
Indawo yezimboni ezisindayo: iminyaka engu-8.91, enezinga lokugqwala lonyaka elingu-40.1;
Indawo esogwini: iminyaka engu-32.67, kanye nezinga lokugqwala lonyaka elingu-10.8;
Iziketi zangaphandle: iminyaka engu-66.33, kanye nezinga lokugqwala lonyaka elingu-5.4;
Indawo yasemadolobheni: iminyaka engu-20.79, kanye nezinga lokugqwala lonyaka elingu-17.5
Uma kubalwa ngokwempilo yesevisi ye-photovoltaic yeminyaka engama-25
Khona-ke ukulandelana kwezindawo ezine okungenani:
1002.5270135437.5, okungukuthi 139 μ m, 37.5 μ m, 18.75 μ m, 60.76 μ m.
Ngakho-ke, ukuze kusatshalaliswe izindawo zasemadolobheni, ubukhulu be-zinc coating kufanele okungenani bube ngu-65 μ M kuyafaneleka futhi kuyadingeka, kodwa ezindaweni zezimboni ezisindayo, ikakhulukazi lezo ezine-acid ne-alkali corrosion, kunconywa ukuthi ubukhulu bepayipi eliyisikwele elihlanganisiwe kanye ne-zinc coating kufanele bufakwe kahle.
Isikhathi sokuthunyelwe: Septhemba-21-2022
