Kuyaziwa ukuba umgangatho weiityhubhu zesikwere kunye noxandekunye nendlela yokufakela ichaphazela ngokuthe ngqo ukuzinza kwezakhiwo zetsimbi.
Okwangoku, izinto ezixhasayo kwiimarike ziyi-carbon steel. Izinto eziluhlaza zekhabhoni zensimbi ngokuqhelekileyo ziyi-Q235 kunye ne-Q345, eziphathwa nge-galvanizing eshushu. Inkxaso yenziwe nge-coil yentsimbi ngokugoba okubandayo, i-welding, i-galvanizing eshushu kunye nezinye iinkqubo. Ngokuqhelekileyo, ubukhulu kufuneka bube bukhulu kune-2mm, kwaye ngokukodwa kwezinye iindawo eziselunxwemeni, eziphakamileyo kunye nezinye iindawo ezinomoya kunye neendawo, kucetyiswa ukuba ubukhulu bungabi ngaphantsi kwe-2.5mm, ngaphandle koko kukho umngcipheko wokukrazula intsimbi. indawo yoqhagamshelwano.
Kwizakhiwo ezinkulu zokwakha, kubacarbon steel galvanized square and rectangular pipes, bungakanani ubukhulu be-zinc coating kufuneka bufikelelwe ukuhlangabezana neemfuno zobomi benkonzo ye-corrosion yendalo?
Njengoko sonke sisazi, ubukhulu be-hot-dip galvanizing ngumgangatho obalulekileyo kunye nesalathiso sobugcisaumbhobho wesikwere owenziwe ngamazi, ehambelana nokhuseleko kunye nokuqina kwesakhiwo. Nangona kukho imigangatho yesizwe kunye neengcali, i-zinc engafanelekanga yokwambathisa ubukhulu benkxaso iseyingxaki ebanzi yobugcisa benkxaso.
Inkqubo ye-galvanizing ye-hot-dip yiplani yonyango yentsimbi ezinzileyo kwaye ethembekileyo yokumelana nokubola kokusingqongileyo. Kukho izinto ezininzi ezichaphazela i-hot-dip galvanizing, njengokubunjwa kwe-substrate yensimbi, imeko yangaphandle (njengoburhabaxa), uxinzelelo lwangaphakathi lwe-substrate, kunye nobukhulu obuninzi. Ngethuba le nkqubo, ubukhulu be-substrate bunempembelelo enkulu kwi-thickness of the hot-dip galvanizing. Ngokuqhelekileyo, okukhona ipleyiti ijiyile, kokukhona ubukhulu bentsimbi yokuntywila eshushu. Inkxaso enobunzima be-2.0mm ithathwa njengomzekelo ukubonisa ukuba ubukhulu be-zinc coating bufunekayo ukwanelisa iimfuno zobomi benkonzo ye-corrosion.
Cinga ukuba ubukhulu bezinto ezisisiseko zenkxaso yi-2mm, ngokwemigangatho ye-GBT13192-2002 ye-galvanizing standard.
Bubuphi ubunzima bomaleko wegalvanized we-galvanized square pipe efunekayo ukuhlangabezana neemfuno zobomi benkonzo?
Umbhobho wesikwere owenziwe ngegalvanized
Ngokweemfuno zomgangatho wesizwe, ubukhulu bezinto ezisisiseko ze-2mm akufanele zibe ngaphantsi kwe-45 μ m. Ubukhulu obufanayo akufunekanga bube ngaphantsi kwe 55 μm ?
Ukuba kubalwa ngokomgangatho wesizwe, umxholo we-zinc ngu-55x7.2 = 396g / m2,
Ubomi benkonzo obukhoyo kwiindawo ezine ezahlukeneyo bumalunga:
Ummandla woshishino olunzima: iminyaka eyi-8.91, kunye ne-corrosion degree yonyaka we-40.1;
Ummandla wonxweme: iminyaka eyi-32.67, kunye neqondo lokutya lonyaka le-10.8;
Ngaphandle: iminyaka eyi-66.33, kunye ne-corrosion degree yonyaka ye-5.4;
Ummandla wedolophu: iminyaka eyi-20.79, kunye ne-corrosion degree yonyaka ye-17.5
Ukuba kubalwa ngokwenkonzo ye-photovoltaic yeminyaka engama-25
Ke ulandelelwano lwezowuni ezine ubuncinane:
1002.5270135437.5, okt 139 μ m, 37.5 μ m, 18.75 μ m, 60.76 μ m.
Ngoko ke, ngokusasazwa kweendawo zasezidolophini, ubukhulu be-zinc coating buya kuba yi-65 μ M ubuncinane bunengqiqo kwaye buyimfuneko, kodwa kwiindawo ezinzima zoshishino, ngakumbi ezo zine-asidi kunye ne-alkali corrosion, kucetyiswa ukuba ubukhulu bombhobho we-galvanized square. kunye ne-zinc coating kufuneka yongezwe ngokufanelekileyo.
Ixesha lokuposa: Sep-21-2022
